Press n or j to go to the next uncovered block, b, p or k for the previous block.
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13x 13x 13x 49x 49x 102x 18x 53x 4x 35x 29x 31x 2x 2x 102x 18x 4x 4x 4x 4x 17x 17x 17x 17x 17x 17x 15888x 15888x 275x 102x 102x 173x 275x 425x 400x 400x 25x 425x 25x 425x 425x 25x 25x 25x 25x 25x 25x 425x 425x 1x 1x 24x 425x 425x 425x 425x 425x 425x 425x 425x 425x 425x 425x 425x 148x 148x 148x 15888x 15888x 15888x 15888x 2707x 2707x 2678x 2707x 2x 29x 27x 27x 2707x 2707x 2707x 2707x 2707x 2707x 2707x 2707x 2707x 2707x 23x 23x 4x 2707x 2707x 1x 1x 3x 3x 2707x 2707x 3x 3x 2707x 7x 7x 3x 3x 3x 3x 3x 3x 7x 2707x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 15888x 15888x 15888x 15888x 25x 25x 21x 25x 25x 25x 15888x 15888x 15888x 278x 102x 102x 176x 278x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 173x 173x 173x 15888x 15888x 15888x 15888x 15888x 457x 457x 457x 457x 457x 457x 457x 2x 2x 2x 2x 457x 457x 509x 509x 509x 509x 457x 457x 509x 457x 15888x 15888x 15888x 666x 666x 47x 47x 619x 666x 162x 6x 6x 162x 613x 613x 613x 15888x 15888x 15888x 15888x 618x 615x 618x 3x 3x 3x 618x 14x 14x 14x 14x 2x 2x 2x 2x 2x 14x 1x 1x 1x 15888x 15888x 78x 4x 4x 74x 74x 74x 78x 157x 157x 27x 27x 27x 27x 10x 8x 8x 8x 10x 27x 27x 19x 19x 8x 8x 8x 8x 8x 8x 157x 66x 66x 66x 15888x 15888x 20x 20x 20x 20x 20x 15888x 15888x 77x 14x 14x 63x 77x 42x 42x 40x 40x 2x 2x 42x 2x 2x 2x 42x 3x 3x 1x 1x 1x 3x 2x 2x 2x 42x 1x 1x 1x 1x 2x 2x 61x 61x 61x 15888x 15888x 78x 78x 78x 78x 78x 78x 78x 78x 15888x 15888x 78x 78x 78x 78x 78x 44x 44x 4x 4x 44x 78x 74x 74x 4x 78x 8x 4x 4x 4x 8x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 8x 3x 3x 3x 15888x 15888x 97x 8x 8x 89x 89x 89x 97x 418x 383x 383x 35x 418x 19x 19x 19x 19x 19x 19x 19x 102x 38x 102x 18x 64x 1x 1x 64x 64x 19x 19x 19x 19x 19x 19x 19x 19x 19x 19x 4x 4x 4x 4x 19x 19x 19x 19x 19x 19x 38x 5x 5x 38x 19x 19x 19x 19x 19x 19x 19x 19x 19x 19x 19x 19x 19x 19x 19x 19x 418x 70x 70x 70x 15888x 15888x 15888x 15888x 104x 104x 14x 104x 90x 90x 52x 52x 52x 38x 104x 54x 54x 54x 47x 47x 7x 7x 7x 7x 7x 54x 1x 1x 1x 1x 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 54x 54x 54x 54x 31x 31x 31x 15888x 15888x 15888x 15888x 19x 19x 19x 19x 19x 19x 57x 15x 13x 13x 15x 57x 19x 19x 19x 19x 76x 2x 2x 2x 2x 76x 19x 19x 19x 125x 48x 48x 77x 125x 271x 5x 5x 5x 5x 5x 271x 77x 19x 19x 15888x 15888x 5x 5x 5x 6x 6x 5x 5x 6x 1x 15888x 15888x 127x 14x 14x 113x 113x 113x 113x 113x 113x 127x 19x 19x 19x 19x 19x 19x 19x 17x 17x 17x 17x 17x 17x 19x 113x 127x 96x 96x 90x 90x 6x 6x 96x 6x 6x 6x 6x 6x 6x 6x 6x 96x 1x 1x 96x 5x 5x 5x 5x 96x 23x 23x 23x 127x 127x 15888x 15888x 15888x 15888x 17x 17x 17x 17x 17x 1x 1x 16x 16x 16x 17x 17x 17x 17x 12x 12x 12x 12x 12x 17x 4x 4x 17x 10x 10x 6x 6x 17x 17x 3x 3x 2x 2x 1x 1x 1x 1x 1x 1x 1x 1x 15888x 15888x 17x 17x 17x 17x 1x 17x 16x 16x 4x 4x 4x 4x 4x 17x 17x 17x 5x 5x 17x 4x 3x 3x 3x 3x 1x 1x 1x 3x 3x 4x 4x 4x 4x 4x 4x 4x 16x 17x 17x 17x 17x 17x 15888x 15888x 4x 4x 5x 5x 4x 4x 1x 1x 1x 5x 5x 4x 15888x 15888x | /* eslint-disable max-len */
import * as crypto from "crypto";
import {IRegistry} from "../_iregistry";
import {At, ParenLeftW, WAt, WParenLeftW, WParenRight, WParenRightW} from "../abap/1_lexer/tokens";
import {AbstractToken} from "../abap/1_lexer/tokens/abstract_token";
import * as Expressions from "../abap/2_statements/expressions";
import * as Statements from "../abap/2_statements/statements";
import {ElseIf} from "../abap/2_statements/statements";
import {Unknown} from "../abap/2_statements/statements/_statement";
import * as Structures from "../abap/3_structures/structures";
import {BuiltIn} from "../abap/5_syntax/_builtin";
import {ReferenceType} from "../abap/5_syntax/_reference";
import {ScopeType} from "../abap/5_syntax/_scope_type";
import {ISpaghettiScopeNode, ISyntaxResult} from "../abap/5_syntax/_spaghetti_scope";
import {SyntaxLogic} from "../abap/5_syntax/syntax";
import {ABAPFile} from "../abap/abap_file";
import {ExpressionNode, StatementNode, StructureNode, TokenNode} from "../abap/nodes";
import {IClassDefinition} from "../abap/types/_class_definition";
import {IMethodDefinition} from "../abap/types/_method_definition";
import {TypedIdentifier} from "../abap/types/_typed_identifier";
import {AbstractType} from "../abap/types/basic/_abstract_type";
import {AnyType, DataReference, ObjectReferenceType, StructureType, TableAccessType, TableType, VoidType} from "../abap/types/basic";
import {Config} from "../config";
import {EditHelper, IEdit} from "../edit_helper";
import {Issue} from "../issue";
import {Class, Program} from "../objects";
import {ABAPObject} from "../objects/_abap_object";
import {IObject} from "../objects/_iobject";
import {Position} from "../position";
import {Registry} from "../registry";
import {IncludeGraph} from "../utils/include_graph";
import {Release} from "../version";
import {VirtualPosition} from "../virtual_position";
import {BasicRuleConfig} from "./_basic_rule_config";
import {IRule, IRuleMetadata, RuleTag} from "./_irule";
// todo: refactor each sub-rule to new classes?
// todo: add configuration
export class DownportConf extends BasicRuleConfig {
}
class SkipToNextFile extends Error {
public issue: Issue;
public constructor(issue: Issue) {
super();
this.issue = issue;
}
}
class SpagHelper {
private readonly spag: ISpaghettiScopeNode;
public constructor(spag: ISpaghettiScopeNode) {
this.spag = spag;
}
public renameVariable(oldName: string, pos: Position, lowFile: ABAPFile, newName: string) {
let fix: IEdit | undefined = undefined;
const references = this.findReferences(oldName, pos);
references.sort((a, b) => {
if (a.start.equals(b.start)) {
return 0;
}
return a.start.isAfter(b.start) ? 1 : -1;
});
for (const r of references) {
const replace = EditHelper.replaceRange(lowFile, r.start, r.end, newName);
if (fix === undefined) {
fix = replace;
} else {
fix = EditHelper.merge(replace, fix);
}
}
return fix;
}
private findReferences(name: string, pos: Position): {start: Position, end: Position}[] {
const positions: {start: Position, end: Position}[] = [];
function has(element: {start: Position, end: Position}): boolean {
return positions.some(a => a.start.equals(element.start));
}
for (const r of this.spag.getData().references) {
if (r.resolved?.getName() === name && r.resolved?.getStart().equals(pos)) {
const sub = {
start: r.position.getStart(),
end: r.position.getEnd(),
};
if (has(sub) === false) {
positions.push(sub);
}
}
}
for (const child of this.spag.getChildren()) {
const subPositions = new SpagHelper(child).findReferences(name, pos);
for (const sub of subPositions) {
if (has(sub) === false) {
positions.push(sub);
}
}
}
return positions;
}
public findRecursiveDuplicate(name: string, skip: Position): TypedIdentifier | undefined {
const found = this.spag.findVariable(name);
if (found?.getStart().equals(skip) === false) {
return found;
}
for (const child of this.spag?.getChildren() || []) {
const sub = new SpagHelper(child).findRecursiveDuplicate(name, skip);
if (sub) {
return sub;
}
}
return undefined;
}
public isDuplicateName(name: string, pos: Position) {
let parent = this.spag.getParent();
while (parent?.getIdentifier().stype === ScopeType.Let
|| parent?.getIdentifier().stype === ScopeType.For) {
parent = parent.getParent();
}
if (parent === undefined) {
return undefined;
}
return new SpagHelper(parent).findRecursiveDuplicate(name, pos) !== undefined;
}
}
export class Downport implements IRule {
private lowReg: IRegistry;
private highReg: IRegistry;
private conf = new DownportConf();
private counter: number;
private graph: IncludeGraph | undefined;
public getMetadata(): IRuleMetadata {
return {
key: "downport",
title: "Downport statement",
shortDescription: `Downport functionality`,
extendedInformation: `Much like the 'commented_code' rule this rule loops through unknown statements and tries parsing with
a higher level language version. If successful, various rules are applied to downport the statement.
Target downport version is always v702, thus rule is only enabled if target version is v702.
Current rules:
* NEW transformed to CREATE OBJECT, opposite of https://rules.abaplint.org/use_new/
* DATA() definitions are outlined, opposite of https://rules.abaplint.org/prefer_inline/
* FIELD-SYMBOL() definitions are outlined
* CONV is outlined
* COND is outlined
* REDUCE is outlined
* SWITCH is outlined
* FILTER is outlined
* APPEND expression is outlined
* INSERT expression is outlined
* EMPTY KEY is changed to DEFAULT KEY, opposite of DEFAULT KEY in https://rules.abaplint.org/avoid_use/
* CAST changed to ?=
* LOOP AT method_call( ) is outlined
* VALUE # with structure fields
* VALUE # with internal table lines
* Table Expressions are outlined
* SELECT INTO @DATA definitions are outlined
* Some occurrences of string template formatting option ALPHA changed to function module call
* SELECT/INSERT/MODIFY/DELETE/UPDATE "," in field list removed, "@" in source/targets removed
* OPEN CURSOR/FETCH NEXT CURSOR/CLOSE CURSOR "@" in source/targets removed
* PARTIALLY IMPLEMENTED removed, it can be quick fixed via rule implement_methods
* RAISE EXCEPTION ... MESSAGE
* Moving with +=, -=, /=, *=, &&= is expanded
* line_exists and line_index is downported to READ TABLE
* ENUMs, but does not nessesarily give the correct type and value
* MESSAGE with non simple source
Only one transformation is applied to a statement at a time, so multiple steps might be required to do the full downport.
Make sure to test the downported code, it might not always be completely correct.`,
tags: [RuleTag.Downport, RuleTag.Quickfix],
};
}
public getConfig() {
return this.conf;
}
public setConfig(conf: DownportConf): void {
this.conf = conf;
}
public initialize(reg: IRegistry) {
this.lowReg = reg;
const config = this.lowReg.getConfig();
if (config.getRelease() === Release.v702 || config.isOpenABAP()) {
this.initHighReg();
}
return this;
}
private listMainForInclude(filename: string | undefined) {
if (filename === undefined) {
return [];
}
// only initialize this.graph if needed
if (this.graph === undefined) {
this.graph = new IncludeGraph(this.lowReg);
}
return this.graph.listMainForInclude(filename);
}
private containsError(highObj: ABAPObject): boolean {
for (const file of highObj.getABAPFiles()) {
for (const statement of file.getStatements()) {
if (statement.get() instanceof Unknown) {
return true; // contains parser errors
}
}
if (file.getStructure() === undefined) {
return true;
}
}
return false;
}
public run(lowObj: IObject): Issue[] {
const ret: Issue[] = [];
this.counter = 1;
const config = this.lowReg.getConfig();
if (config.getRelease() !== Release.v702 && !config.isOpenABAP()) {
return ret;
} else if (!(lowObj instanceof ABAPObject)) {
return ret;
}
const highObj = this.highReg.getObject(lowObj.getType(), lowObj.getName());
if (highObj === undefined || !(highObj instanceof ABAPObject)) {
return ret;
}
let highSyntaxObj = highObj;
if (this.containsError(highObj)) {
return ret;
}
// for includes do the syntax check via a main program
if (lowObj instanceof Program && lowObj.isInclude()) {
const mains = this.listMainForInclude(lowObj.getMainABAPFile()?.getFilename());
if (mains.length <= 0) {
return [];
}
const f = this.highReg.getFileByName(mains[0]);
if (f === undefined) {
return [];
}
highSyntaxObj = this.highReg.findObjectForFile(f) as ABAPObject;
}
for (const lowFile of lowObj.getABAPFiles()) {
let highSyntax: ISyntaxResult | undefined = undefined;
const highFile = highObj.getABAPFileByName(lowFile.getFilename());
if (highFile === undefined) {
continue;
}
const lowStatements = lowFile.getStatements();
const highStatements = highFile.getStatements();
if (lowStatements.length !== highStatements.length) {
// after applying a fix, there might be more statements in lowFile
// should highReg be initialized again?
/*
const message = "Internal Error: Statement lengths does not match";
ret.push(Issue.atStatement(lowFile, lowStatements[0], message, this.getMetadata().key));
*/
// hmm, add some way to disable lazyUnknown() in statement_parser.ts
// alternatively explicit enable it in vscode, its only relevant when a user is
// actively editing the files
continue;
}
if (highSyntax === undefined) {
highSyntax = new SyntaxLogic(this.highReg, highSyntaxObj).run();
}
let containsUnknown = false;
const notDownported: Issue[] = [];
for (let i = 0; i < lowStatements.length; i++) {
const low = lowStatements[i];
const high = highStatements[i];
if ((low.get() instanceof Unknown && !(high.get() instanceof Unknown))
|| high.findFirstExpression(Expressions.InlineData)) {
containsUnknown = true;
try {
const issue = this.checkStatement(low, high, lowFile, highSyntax, highFile);
if (issue) {
ret.push(issue);
} else {
const nope = this.notDownported(low, high, lowFile, highSyntax);
if (nope) {
notDownported.push(nope);
}
}
} catch (e) {
if (e instanceof SkipToNextFile) {
ret.push(e.issue);
break;
} else {
throw e;
}
}
}
}
if (ret.length === 0 && containsUnknown) {
// this is a hack in order not to change too many unit tests
for (let i = 0; i < lowStatements.length; i++) {
const high = highStatements[i];
if (high.get() instanceof Statements.Data) {
const issue = this.anonymousTableType(high, lowFile, highSyntax);
if (issue) {
ret.push(issue);
}
}
}
}
if (ret.length === 0 && lowFile.getRaw().includes(" xsdbool(")) {
for (let i = 0; i < lowStatements.length; i++) {
const high = highStatements[i];
const issue = this.replaceXsdBool(high, lowFile, highSyntax);
if (issue) {
ret.push(issue);
}
}
}
// a chained call with EXPORTING/IMPORTING/CHANGING/RECEIVING/EXCEPTIONS parses in the low
// version, but 702 reads the last call of a chain as a functional call,
// "Unexpected word CHANGING in functional method call"
if (ret.length === 0) {
for (let i = 0; i < lowStatements.length; i++) {
const issue = this.outlineChainedCallParameters(lowStatements[i], highStatements[i], lowFile, highSyntax);
if (issue) {
ret.push(issue);
break;
}
}
}
// INSERT with a 702 built-in function as the operand parses in the low version, but 702
// reads the function as a method call, "Method SUBSTRING does not exist"
if (ret.length === 0) {
for (let i = 0; i < lowStatements.length; i++) {
const issue = this.outlineInsertBuiltin(lowStatements[i], highStatements[i], lowFile, highSyntax);
if (issue) {
ret.push(issue);
break;
}
}
}
// MOVE-CORRESPONDING between tables parses in the low version, but is only allowed from
// v740sp05, "MOVE-CORRESPONDING with tables possible from v740sp05"
if (ret.length === 0) {
for (let i = 0; i < lowStatements.length; i++) {
if (lowStatements[i].getFirstToken().getStart() instanceof VirtualPosition) {
continue;
}
const issue = this.downportMoveCorrespondingTables(highStatements[i], lowFile, highSyntax);
if (issue) {
ret.push(issue);
break;
}
}
}
// INTO after WHERE parses as a valid SELECT in the low version, but is only allowed in
// strict SQL syntax, so move it also when the statement is no longer Unknown
if (ret.length === 0) {
for (let i = 0; i < lowStatements.length; i++) {
const low = lowStatements[i];
const high = highStatements[i];
const issue = this.downportSQLMoveInto(low, high, lowFile, highSyntax);
if (issue) {
ret.push(issue);
}
}
}
// nothing could be rewritten, name the statements which stay invalid in the low version
if (ret.length === 0) {
ret.push(...notDownported);
}
}
return ret;
}
////////////////////
/** for a statement no downport applies to, an issue without fix if it stays invalid in the low version */
private notDownported(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (this.lowReg.getConfig().isOpenABAP()) {
return undefined;
}
// a constructor expression with #, where the type cannot be inferred as it is void
if (low.get() instanceof Unknown) {
for (const infer of high.findAllExpressionsRecursive(Expressions.TypeNameOrInfer)) {
if (infer.concatTokens() !== "#") {
continue;
}
const token = infer.getFirstToken();
const spag = highSyntax.spaghetti.lookupPosition(token.getStart(), lowFile.getFilename());
const voided = spag?.getData().references.some(r => r.referenceType === ReferenceType.InferredType
&& r.position.getStart().equals(token.getStart())
&& r.resolved instanceof TypedIdentifier
&& r.resolved.getType() instanceof VoidType
&& r.resolved.getType().getQualifiedName() === undefined);
if (voided === true) {
return Issue.atToken(lowFile, token, "Cannot downport, inferred type is void",
this.getMetadata().key, this.conf.severity);
}
}
return undefined;
}
// the statement might still parse in the low version, eg. DATA(name) as offset/length access
for (const i of high.findAllExpressionsRecursive(Expressions.InlineData)) {
const nameToken = i.findDirectExpression(Expressions.TargetField)?.getFirstToken();
if (nameToken === undefined) {
continue;
}
const name = nameToken.getStr();
const found = highSyntax.spaghetti.lookupPosition(nameToken.getStart(), lowFile.getFilename())?.findVariable(name);
if (found?.getType() instanceof VoidType && found.getType().getQualifiedName() === undefined) {
return Issue.atToken(lowFile, i.getFirstToken(), `Cannot downport, type of ${name} is void`,
this.getMetadata().key, this.conf.severity);
}
}
return undefined;
}
/** clones the orginal repository into highReg, and parses it with higher language version */
private initHighReg() {
// use default configuration, ie. default target version
const highConfig = Config.getDefault().get();
const lowConfig = this.lowReg.getConfig().get();
highConfig.syntax.errorNamespace = lowConfig.syntax.errorNamespace;
highConfig.syntax.globalConstants = lowConfig.syntax.globalConstants;
highConfig.syntax.ambigiousVoids = lowConfig.syntax.ambigiousVoids;
highConfig.syntax.globalMacros = lowConfig.syntax.globalMacros;
this.highReg = new Registry();
for (const o of this.lowReg.getObjects()) {
for (const f of o.getFiles()) {
if (this.lowReg.isDependency(o) === true) {
this.highReg.addDependency(f);
} else {
this.highReg.addFile(f);
}
}
}
this.highReg.parse();
}
/** applies one rule at a time, multiple iterations are required to transform complex statements */
private checkStatement(low: StatementNode, high: StatementNode, lowFile: ABAPFile,
highSyntax: ISyntaxResult, highFile: ABAPFile): Issue | undefined {
if (low.getFirstToken().getStart() instanceof VirtualPosition) {
return undefined;
}
// downport XSDBOOL() early, as it is valid 702 syntax
/*
let found = this.replaceXsdBool(high, lowFile, highSyntax);
if (found) {
return found;
}
*/
let found = this.stripCallTransactionAuthorityCheck(high, lowFile);
if (found) {
return found;
}
found = this.downportEnum(low, high, lowFile, highSyntax, highFile);
if (found) {
return found;
}
found = this.partiallyImplemented(high, lowFile);
if (found) {
return found;
}
found = this.raiseException(high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.emptyKey(low, high, lowFile);
if (found) {
return found;
}
found = this.stringTemplateAlpha(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.moveWithOperator(low, high, lowFile);
if (found) {
return found;
}
found = this.moveWithSimpleValue(low, high, lowFile);
if (found) {
return found;
}
found = this.outlineTableExpressionKeyBuiltin(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.assignWithTable(low, high, lowFile);
if (found) {
return found;
}
found = this.assignComponent(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.downportRefSimple(high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.downportCorrespondingSimple(high, lowFile);
if (found) {
return found;
}
found = this.downportMoveCorrespondingTables(high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.downportRef(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.downportLoopGroup(high, lowFile, highSyntax, highFile);
if (found) {
return found;
}
found = this.callFunctionParameterSimple(high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.moveWithTableTarget(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.downportSelectInline(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.downportSelectExistence(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.downportOpenCursorInline(low, high, lowFile);
if (found) {
return found;
}
found = this.downportSQLMoveInto(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.downportSQLExtras(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.outlineLoopInput(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.outlineLoopTarget(high, lowFile, highSyntax);
if (found) {
return found;
}
let skipValue = false;
let skipReduce = false;
const valueBody = high.findFirstExpression(Expressions.ValueBody);
const reduceBody = high.findFirstExpression(Expressions.ReduceBody);
if (valueBody && reduceBody) {
const valueToken = valueBody.getFirstToken();
const reduceToken = reduceBody.getFirstToken();
if (valueToken.getStart().isBefore(reduceToken.getStart())) {
skipReduce = true;
} else {
skipValue = true;
}
}
if (skipValue !== true) {
found = this.outlineValue(low, high, lowFile, highSyntax);
if (found) {
return found;
}
}
if (skipReduce !== true) {
found = this.outlineReduce(low, high, lowFile, highSyntax);
if (found) {
return found;
}
}
found = this.outlineCorresponding(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.downportSelectFields(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.outlineSwitch(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.outlineFilter(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.outlineCast(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.outlineConv(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.outlineCond(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.outlineCatchSimple(high, lowFile);
if (found) {
return found;
}
found = this.outlineGetReferenceSimple(high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.outlineDataSimple(high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.outlineReadTableVoidTarget(high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.outlineData(high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.outlineFS(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.newToCreateObject(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.replaceInstanceOf(low, high, lowFile, highSyntax, highFile);
if (found) {
return found;
}
found = this.replaceLineFunctions(high, lowFile, highSyntax, highFile);
if (found) {
return found;
}
found = this.getReference(high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.replaceContains(high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.replaceMethodConditional(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.replaceTableExpression(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.replaceAppendExpression(high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.replaceInsertExpression(high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.downportMessageSource(high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.downportMessage(high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.downportReadTable(high, lowFile, highSyntax);
if (found) {
return found;
}
return undefined;
}
//////////////////////////////////////////
/** move INTO from after WHERE to after FROM,
* note that INTO after WHERE is only valid in strict SQL syntax, so it must be moved when
* downporting; this can happen both while the statement is still Unknown(from the main loop)
* and after the @ and FIELDS have been removed, leaving a SELECT that parses in the low version */
private downportSQLMoveInto(low: StatementNode, high: StatementNode, lowFile: ABAPFile, _highSyntax: ISyntaxResult): Issue | undefined {
if (!(high.get() instanceof Statements.Select)
&& !(high.get() instanceof Statements.SelectLoop)) {
return undefined;
}
// note: SQLCond is also used in JOIN(FROM) conditions
const where = high.findFirstExpression(Expressions.Select)?.findDirectExpression(Expressions.SQLCond);
if (where === undefined) {
return undefined;
}
// the FIELDS list sits between FROM and WHERE, wait for it to be removed first
if (high.findFirstExpression(Expressions.SQLFields) !== undefined) {
return undefined;
}
let into = high.findFirstExpression(Expressions.SQLIntoList);
if (into === undefined) {
into = high.findFirstExpression(Expressions.SQLIntoStructure);
}
if (into === undefined) {
into = high.findFirstExpression(Expressions.SQLIntoTable);
}
if (into === undefined) {
return undefined;
}
if (where.getLastToken().getEnd().isBefore(into.getFirstToken().getStart()) === false) {
return undefined;
}
const from = high.findFirstExpression(Expressions.SQLFrom);
if (from === undefined) {
return undefined;
}
// UP TO after INTO is only valid behind WHERE when it follows an ORDER BY, else move it along in front of INTO
let move = into.concatTokens();
const fixes: IEdit[] = [];
const upTo = high.findFirstExpression(Expressions.SQLUpTo);
const orderBy = high.findFirstExpression(Expressions.SQLOrderBy);
if (upTo !== undefined
&& into.getLastToken().getEnd().isBefore(upTo.getFirstToken().getStart())
&& (orderBy === undefined || upTo.getFirstToken().getStart().isBefore(orderBy.getFirstToken().getStart()))) {
move = upTo.concatTokens() + ` ` + move;
fixes.push(EditHelper.deleteRange(lowFile, upTo.getFirstToken().getStart(), upTo.getLastToken().getEnd()));
}
// edits are applied in sequence, so work from the end of the statement towards the start
fixes.push(EditHelper.deleteRange(lowFile, into.getFirstToken().getStart(), into.getLastToken().getEnd()));
fixes.push(EditHelper.insertAt(lowFile, from.getLastToken().getEnd(), ` ` + move));
const fix = EditHelper.mergeList(fixes);
return Issue.atToken(lowFile, low.getFirstToken(), "SQL, move INTO", this.getMetadata().key, this.conf.severity, fix);
}
/** the work area of INSERT/MODIFY/UPDATE/DELETE dbtab FROM @( ... ) takes its type from the
* database table, a "#" constructor cannot be outlined with DATA( ) as there is nothing to infer from */
private sqlWorkAreaType(high: StatementNode, sqlSource: ExpressionNode): string | undefined {
if (!(high.get() instanceof Statements.InsertDatabase)
&& !(high.get() instanceof Statements.ModifyDatabase)
&& !(high.get() instanceof Statements.UpdateDatabase)
&& !(high.get() instanceof Statements.DeleteDatabase)) {
return undefined;
} else if (high.getChildren().includes(sqlSource) === false) {
return undefined;
}
const table = high.findDirectExpression(Expressions.DatabaseTable);
if (table === undefined || table.findDirectExpression(Expressions.Dynamic) !== undefined) {
return undefined;
}
const name = table.concatTokens();
if (high.findDirectTokenByText("TABLE") !== undefined) {
return `STANDARD TABLE OF ${name} WITH DEFAULT KEY`;
}
return name;
}
/** removes @'s and commas */
private downportSQLExtras(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
if (!(high.get() instanceof Statements.Select)
&& !(high.get() instanceof Statements.SelectLoop)
&& !(high.get() instanceof Statements.UpdateDatabase)
&& !(high.get() instanceof Statements.ModifyDatabase)
&& !(high.get() instanceof Statements.DeleteDatabase)
&& !(high.get() instanceof Statements.InsertDatabase)
&& !(high.get() instanceof Statements.OpenCursor)
&& !(high.get() instanceof Statements.FetchNextCursor)
&& !(high.get() instanceof Statements.CloseCursor)) {
return undefined;
}
let fix: IEdit | undefined = undefined;
const addFix = (token: AbstractToken) => {
const add = EditHelper.deleteToken(lowFile, token);
if (fix === undefined) {
fix = add;
} else {
fix = EditHelper.merge(fix, add);
}
};
const candidates = [high.findAllExpressionsRecursive(Expressions.SQLTarget),
high.findAllExpressionsRecursive(Expressions.SQLSource),
high.findAllExpressionsRecursive(Expressions.SQLSourceNoSpace),
high.findAllExpressionsRecursive(Expressions.SQLSourceSimple)].flat();
// the deletions are applied one after the other, so handle the candidates from the end of the statement,
// in FETCH NEXT CURSOR and OPEN CURSOR a source or target comes before the others
candidates.sort((a, b) => a.getFirstToken().getStart().isAfter(b.getFirstToken().getStart()) ? -1 : 1);
for (const c of candidates) {
if (c.getFirstToken() instanceof WAt
|| c.getFirstToken() instanceof At) {
const tokens = c.getAllTokens();
if (tokens[1] instanceof ParenLeftW && tokens[tokens.length - 1] instanceof WParenRightW) {
const source = c.findDirectExpression(Expressions.Source);
if (source?.findDirectExpression(Expressions.TypeNameOrInfer)?.concatTokens() === "#") {
const workAreaType = this.sqlWorkAreaType(high, c);
if (workAreaType === undefined) {
return Issue.atToken(lowFile, low.getFirstToken(), "SQL, outline complex @, type of # not known", this.getMetadata().key, this.conf.severity);
}
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), `DATA ${uniqueName} TYPE ${workAreaType}.
${indentation}${uniqueName} = ${source?.concatTokens()}.\n${indentation}`);
const fix2 = EditHelper.replaceRange(lowFile, c.getFirstToken().getStart(), c.getLastToken().getEnd(), "@" + uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, low.getFirstToken(), "SQL, outline complex @", this.getMetadata().key, this.conf.severity, fix);
}
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const fix1 = EditHelper.insertAt(lowFile, high.getStart(), `DATA(${uniqueName}) = ${source?.concatTokens()}.\n`);
const fix2 = EditHelper.replaceRange(lowFile, c.getFirstToken().getStart(), c.getLastToken().getEnd(), "@" + uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, low.getFirstToken(), "SQL, outline complex @", this.getMetadata().key, this.conf.severity, fix);
} else {
addFix(c.getFirstToken());
}
}
}
for (const fieldList of high.findAllExpressionsMulti([Expressions.SQLFieldList, Expressions.SQLFieldListLoop, Expressions.SQLOrderBy], true)) {
for (const token of fieldList.getDirectTokens()) {
if (token.getStr() === ",") {
addFix(token);
}
}
}
if (fix !== undefined) {
return Issue.atToken(lowFile, low.getFirstToken(), "SQL, remove @ and ,", this.getMetadata().key, this.conf.severity, fix);
}
for (const c of high.findAllExpressionsRecursive(Expressions.SQLIn)) {
const children = c.getChildren();
const first = children[1];
if (!(first.get() instanceof WParenLeftW)) {
continue;
}
const last = children[children.length - 1];
if (last.get() instanceof WParenRightW || last.get() instanceof WParenRight) {
const firstEnd = first.getFirstToken().getEnd();
const endDelete = new Position(firstEnd.getRow(), firstEnd.getCol() + 1);
const fix1 = EditHelper.deleteRange(lowFile, firstEnd, endDelete);
const lastStart = last.getFirstToken().getStart();
const startDelete = new Position(lastStart.getRow(), lastStart.getCol() - 1);
const fix2 = EditHelper.deleteRange(lowFile, startDelete, lastStart);
fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, low.getFirstToken(), "SQL, remove spaces", this.getMetadata().key, this.conf.severity, fix);
}
}
return undefined;
}
/** OPEN CURSOR @DATA(name), the cursor is always of type cursor */
private downportOpenCursorInline(low: StatementNode, high: StatementNode, lowFile: ABAPFile): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
} else if (!(high.get() instanceof Statements.OpenCursor)) {
return undefined;
}
const inlineData = high.findDirectExpression(Expressions.SQLTarget)?.findDirectExpression(Expressions.Target)?.findDirectExpression(Expressions.InlineData);
const name = inlineData?.findFirstExpression(Expressions.TargetField)?.concatTokens();
if (inlineData === undefined || name === undefined) {
return undefined;
}
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
const fix1 = EditHelper.insertAt(lowFile, high.getStart(), `DATA ${name} TYPE cursor.\n${indentation}`);
const fix2 = EditHelper.replaceRange(lowFile, inlineData.getFirstToken().getStart(), inlineData.getLastToken().getEnd(), name);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, inlineData.getFirstToken(), "Outline OPEN CURSOR @DATA", this.getMetadata().key, this.conf.severity, fix);
}
private downportSelectExistence(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
} else if (!(high.get() instanceof Statements.Select)) {
return undefined;
}
const fieldList = high.findFirstExpression(Expressions.SQLFieldList);
if (fieldList?.concatTokens().toUpperCase() !== "@ABAP_TRUE") {
return undefined;
}
const fieldName = high.findFirstExpression(Expressions.SQLCond)?.findFirstExpression(Expressions.SQLFieldName)?.concatTokens();
if (fieldName === undefined) {
return undefined;
}
const into = high.findFirstExpression(Expressions.SQLIntoStructure);
if (into === undefined) {
return undefined;
}
const intoName = into.findFirstExpression(Expressions.SQLTarget)?.findFirstExpression(Expressions.Target)?.concatTokens();
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const fix1 = EditHelper.replaceRange(lowFile, fieldList.getFirstToken().getStart(), fieldList.getLastToken().getEnd(), fieldName);
const fix2 = EditHelper.replaceRange(lowFile, into?.getFirstToken().getStart(), into?.getLastToken().getEnd(), `INTO @DATA(${uniqueName})`);
let fix = EditHelper.merge(fix2, fix1);
const fix3 = EditHelper.insertAt(lowFile, high.getLastToken().getEnd(), `\nCLEAR ${intoName}.\nIF sy-subrc = 0.\n ${intoName} = abap_true.\nENDIF.`);
fix = EditHelper.merge(fix, fix3);
return Issue.atToken(lowFile, low.getFirstToken(), "SQL, refactor existence check", this.getMetadata().key, this.conf.severity, fix);
}
private downportSelectInline(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
} else if (!(high.get() instanceof Statements.Select) && !(high.get() instanceof Statements.SelectLoop)) {
return undefined;
}
// as first step outline the @DATA, note that void types are okay, as long the field names are specified
let found = this.downportSelectSingleInline(low, high, lowFile, highSyntax);
if (found) {
return found;
}
found = this.downportSelectTableInline(low, high, lowFile, highSyntax);
if (found) {
return found;
}
return undefined;
}
private downportSelectFields(low: StatementNode, high: StatementNode, lowFile: ABAPFile, _highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
} else if (!(high.get() instanceof Statements.Select)) {
return undefined;
}
const fields = high.findFirstExpression(Expressions.SQLFields);
if (fields === undefined) {
return undefined;
}
// everything behind the FIELDS keyword, including DISTINCT
const code = fields.concatTokens().replace(/^FIELDS\s+/i, "");
// the field list goes behind SELECT, or behind SINGLE [FOR UPDATE], which must stay in front of it
const tokens = high.getTokens();
let insertAfter = tokens[0];
if (tokens[1]?.getStr().toUpperCase() === "SINGLE") {
insertAfter = tokens[1];
if (tokens[2]?.getStr().toUpperCase() === "FOR" && tokens[3]?.getStr().toUpperCase() === "UPDATE") {
insertAfter = tokens[3];
}
}
const fix1 = EditHelper.deleteRange(lowFile, fields.getFirstToken().getStart(), fields.getLastToken().getEnd());
const fix2 = EditHelper.insertAt(lowFile, insertAfter.getEnd(), " " + code);
const fix = EditHelper.merge(fix1, fix2);
return Issue.atToken(lowFile, fields.getFirstToken(), "Replace FIELDS", this.getMetadata().key, this.conf.severity, fix);
}
private downportSelectSingleInline(low: StatementNode, high: StatementNode,
lowFile: ABAPFile, _highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
const targets = high.findFirstExpression(Expressions.SQLIntoStructure)?.findDirectExpressions(Expressions.SQLTarget) || [];
if (targets.length !== 1) {
return undefined;
}
const inlineData = targets[0].findFirstExpression(Expressions.InlineData);
if (inlineData === undefined) {
return undefined;
}
const sqlFrom = high.findAllExpressions(Expressions.SQLFromSource);
if (sqlFrom.length !== 1) {
return undefined;
}
const tableName = sqlFrom[0].findDirectExpression(Expressions.DatabaseTable)?.concatTokens();
if (tableName === undefined) {
return undefined;
}
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
let fieldList = high.findFirstExpression(Expressions.SQLFieldList);
if (fieldList === undefined) {
fieldList = high.findFirstExpression(Expressions.SQLFieldListLoop);
}
if (fieldList === undefined) {
return undefined;
}
let fieldDefinition = "";
const fields = fieldList.findAllExpressions(Expressions.SQLFieldName);
const name = inlineData.findFirstExpression(Expressions.TargetField)?.concatTokens() || "error";
if (fields.length === 1) {
fieldDefinition = `DATA ${name} TYPE ${tableName}-${fields[0].concatTokens()}.`;
} else if (fieldList.concatTokens() === "*") {
fieldDefinition = `DATA ${name} TYPE ${tableName}.`;
} else if (fieldList.concatTokens().toUpperCase() === "COUNT( * )") {
fieldDefinition = `DATA ${name} TYPE i.`;
} else if (fieldList.concatTokens().toUpperCase() === "@ABAP_TRUE"
|| fieldList.concatTokens().toUpperCase() === "@ABAP_FALSE") {
fieldDefinition = `DATA ${name} TYPE abap_bool.`;
} else if (fieldList.getChildren().length === 1 && fieldList.getChildren()[0].get() instanceof Expressions.SQLAggregation) {
const c = fieldList.getChildren()[0];
if (c instanceof ExpressionNode) {
const concat = c.findFirstExpression(Expressions.SQLArithmetics)?.concatTokens();
fieldDefinition = `DATA ${name} TYPE ${tableName}-${concat}.`;
}
} else {
for (const f of fields) {
const fieldName = f.concatTokens();
fieldDefinition += indentation + " " + fieldName + " TYPE " + tableName + "-" + fieldName + ",\n";
}
fieldDefinition = `DATA: BEGIN OF ${name},
${fieldDefinition}${indentation} END OF ${name}.`;
}
const fix1 = EditHelper.insertAt(lowFile, high.getStart(), `${fieldDefinition}
${indentation}`);
const fix2 = EditHelper.replaceRange(lowFile, inlineData.getFirstToken().getStart(), inlineData.getLastToken().getEnd(), name);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, inlineData.getFirstToken(), "Outline SELECT @DATA", this.getMetadata().key, this.conf.severity, fix);
}
private downportSelectTableInline(low: StatementNode, high: StatementNode,
lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
const targets = high.findFirstExpression(Expressions.SQLIntoTable)?.findDirectExpressions(Expressions.SQLTarget) || [];
if (targets.length !== 1) {
return undefined;
}
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
const inlineData = targets[0].findFirstExpression(Expressions.InlineData);
if (inlineData === undefined) {
return undefined;
}
const sqlFrom = high.findAllExpressions(Expressions.SQLFromSource);
if (sqlFrom.length === 0) {
return Issue.atToken(lowFile, high.getFirstToken(), "Error outlining, sqlFrom not found", this.getMetadata().key, this.conf.severity);
}
let tableName = sqlFrom[0].findDirectExpression(Expressions.DatabaseTable)?.concatTokens();
if (tableName === undefined) {
return undefined;
}
const tableMap: {[key: string]: string} = {};
for (const from of sqlFrom) {
const dbName = from.findDirectExpression(Expressions.DatabaseTable)?.concatTokens().toUpperCase();
if (dbName === undefined) {
continue;
}
const asName = from.findDirectExpression(Expressions.SQLAsName)?.concatTokens().toUpperCase() || dbName;
tableMap[asName] = dbName;
}
const fieldList = high.findFirstExpression(Expressions.SQLFieldList);
if (fieldList === undefined) {
return undefined;
}
let fieldDefinitions = "";
for (const f of fieldList.findAllExpressions(Expressions.SQLField)) {
let fieldName = f.findFirstExpression(Expressions.SQLFieldName)?.concatTokens();
if (fieldName === undefined) {
continue;
}
if (fieldName.includes("~")) {
const split = fieldName.split("~");
tableName = split[0];
fieldName = split[1];
}
const translated = tableMap[tableName.toUpperCase()];
const typeName = translated + "-" + fieldName;
fieldName = f.findFirstExpression(Expressions.SQLAsName)?.concatTokens() || fieldName;
fieldDefinitions += indentation + " " + fieldName + " TYPE " + typeName.toLowerCase() + ",\n";
}
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const name = inlineData.findFirstExpression(Expressions.TargetField)?.concatTokens() || "error";
let fix1 = EditHelper.insertAt(lowFile, high.getStart(), `TYPES: BEGIN OF ${uniqueName},
${fieldDefinitions}${indentation} END OF ${uniqueName}.
${indentation}DATA ${name} TYPE STANDARD TABLE OF ${uniqueName} WITH DEFAULT KEY.
${indentation}`);
if (fieldDefinitions === "") {
fix1 = EditHelper.insertAt(lowFile, high.getStart(), `DATA ${name} TYPE STANDARD TABLE OF ${tableName} WITH DEFAULT KEY.
${indentation}`);
}
const fix2 = EditHelper.replaceRange(lowFile, inlineData.getFirstToken().getStart(), inlineData.getLastToken().getEnd(), name);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, inlineData.getFirstToken(), "Outline SELECT @DATA", this.getMetadata().key, this.conf.severity, fix);
}
// the anonymous type might be used in inferred type statements, define it so it can be referred
private anonymousTableType(high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(high.get() instanceof Statements.Data)) {
return undefined;
}
const tt = high.findFirstExpression(Expressions.TypeTable);
if (tt === undefined) {
return undefined;
}
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const code = `TYPES ${uniqueName} ${tt.concatTokens()}.\n`;
const fix1 = EditHelper.insertAt(lowFile, high.getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, tt.getFirstToken().getStart(), tt.getLastToken().getEnd(), "TYPE " + uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, high.getFirstToken(), "Add type for table definition", this.getMetadata().key, this.conf.severity, fix);
}
private downportMessage(high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(high.get() instanceof Statements.Message)) {
return undefined;
}
const foundWith = high.findExpressionAfterToken("WITH");
if (foundWith === undefined) {
return undefined;
}
const likeSource = high.findExpressionAfterToken("LIKE");
for (const s of high.findAllExpressions(Expressions.Source)) {
if (s === likeSource) {
continue;
} else if (s.getChildren().length === 1 && s.getFirstChild()?.get() instanceof Expressions.Constant) {
continue;
} else if (s.getChildren().length === 1 && s.getFirstChild()?.get() instanceof Expressions.FieldChain) {
continue;
}
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
const firstToken = high.getFirstToken();
const code = `DATA(${uniqueName}) = ${s.concatTokens()}.\n${indentation}`;
const fix1 = EditHelper.insertAt(lowFile, firstToken.getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, s.getFirstToken().getStart(), s.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, high.getFirstToken(), "Refactor MESSAGE WITH source", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
private replaceAppendExpression(high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(high.get() instanceof Statements.Append)) {
return undefined;
}
const children = high.getChildren();
if (children[1].get() instanceof Expressions.Source) {
const source = children[1];
const target = high.findDirectExpression(Expressions.Target);
if (target === undefined) {
return undefined;
}
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
const firstToken = high.getFirstToken();
const fix1 = EditHelper.insertAt(lowFile, firstToken.getStart(), `DATA ${uniqueName} LIKE LINE OF ${target?.concatTokens()}.
${indentation}${uniqueName} = ${source.concatTokens()}.\n${indentation}`);
const fix2 = EditHelper.replaceRange(lowFile, source.getFirstToken().getStart(), source.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, high.getFirstToken(), "Outline APPEND source expression", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
private downportReadTable(high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(high.get() instanceof Statements.ReadTable)) {
return undefined;
}
const source = high.findExpressionAfterToken("TABLE");
if (source?.get() instanceof Expressions.Source) {
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
const firstToken = high.getFirstToken();
const fix1 = EditHelper.insertAt(lowFile, firstToken.getStart(), `DATA(${uniqueName}) = ${source.concatTokens()}.\n` + indentation);
const fix2 = EditHelper.replaceRange(lowFile, source.getFirstToken().getStart(), source.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, high.getFirstToken(), "Outline table source", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
private downportMessageSource(high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(high.get() instanceof Statements.Message)) {
return undefined;
}
const source = high.findExpressionAfterToken("MESSAGE");
if (source?.get() instanceof Expressions.MessageSourceSource
&& source.getFirstChild()?.get() instanceof Expressions.Source) {
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
const firstToken = high.getFirstToken();
const fix1 = EditHelper.insertAt(lowFile, firstToken.getStart(), `DATA(${uniqueName}) = ${source.concatTokens()}.\n` + indentation);
const fix2 = EditHelper.replaceRange(lowFile, source.getFirstToken().getStart(), source.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, high.getFirstToken(), "Outline message source", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
private replaceInsertExpression(high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(high.get() instanceof Statements.InsertInternal)) {
return undefined;
}
const children = high.getChildren();
if (children[1].get() instanceof Expressions.Source) {
const source = children[1];
const target = high.findDirectExpression(Expressions.Target);
if (target === undefined) {
return undefined;
}
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
const firstToken = high.getFirstToken();
const fix1 = EditHelper.insertAt(lowFile, firstToken.getStart(), `DATA ${uniqueName} LIKE LINE OF ${target?.concatTokens()}.
${indentation}${uniqueName} = ${source.concatTokens()}.\n${indentation}`);
const fix2 = EditHelper.replaceRange(lowFile, source.getFirstToken().getStart(), source.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, high.getFirstToken(), "Outline INSERT source expression", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
private replaceTableExpression(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
for (const fieldChain of high.findAllExpressionsRecursive(Expressions.FieldChain)) {
const tableExpression = fieldChain.findDirectExpression(Expressions.TableExpression);
if (tableExpression === undefined) {
continue;
}
const concat = high.concatTokens().toUpperCase();
if (concat.includes(" LINE_EXISTS( ") || concat.includes(" LINE_INDEX( ")) {
// note: line_exists() must be replaced before handling table expressions
continue;
}
let pre = "";
let startToken: AbstractToken | undefined = undefined;
for (const child of fieldChain.getChildren()) {
if (startToken === undefined) {
startToken = child.getFirstToken();
} else if (child === tableExpression) {
break;
}
pre += child.concatTokens();
}
if (startToken === undefined) {
continue;
}
const condition = this.tableCondition(tableExpression);
let guard: string[] = [];
if (high.get() instanceof Statements.If) {
const found = this.shortCircuitGuard(high.findDirectExpression(Expressions.Cond), fieldChain);
if (found === "later") {
continue;
}
guard = found;
}
// ASSIGNING, not INTO: from v740 a table expression in a read position addresses the
// row rather than copying it, so "REF #( tab[ i ]-comp )" and "ASSIGN tab[ i ]-comp"
// hand back an address INTO a work area would not preserve. The write path
// (moveWithTableTarget) already lowers to ASSIGNING for the same reason.
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax, true);
const tabixBackup = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
const firstToken = high.getFirstToken();
// note that the tabix restore should be done before throwing the exception
let read = `${tabixBackup} = sy-tabix.
READ TABLE ${pre} ${condition}ASSIGNING ${uniqueName}.
sy-tabix = ${tabixBackup}.
IF sy-subrc <> 0.
RAISE EXCEPTION TYPE cx_sy_itab_line_not_found.
ENDIF.`;
if (guard.length > 0) {
// the operands in front of the table expression are evaluated first and can stop the
// evaluation, so the row is only read when they let the evaluation reach it
read = `IF ${guard.join(" AND ")}.
${read.replace(/^/gm, " ")}
ENDIF.`;
}
const fix1 = EditHelper.insertAt(lowFile, firstToken.getStart(), `FIELD-SYMBOLS ${uniqueName} LIKE LINE OF ${pre}.
${indentation}DATA ${tabixBackup} LIKE sy-tabix.
${read.replace(/\n/g, "\n" + indentation).replace(/^/, indentation)}
${indentation}`);
const fix2 = EditHelper.replaceRange(lowFile, startToken.getStart(), tableExpression.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
if (high.get() instanceof Statements.ElseIf) {
throw "downport, unable to downport table expression in ELSEIF";
}
return Issue.atToken(lowFile, high.getFirstToken(), "Outline table expression", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
/** ABAP evaluates the operands of AND and OR left to right and stops as soon as the result
* is known, so in "IF lv_last > 0 AND tab[ lv_last ] = x." the table expression is only read
* when lv_last > 0. Outlined in front of the IF, the read and its CX_SY_ITAB_LINE_NOT_FOUND
* raise would run unconditionally. Returns the operands that must hold for the evaluation to
* reach the target, empty when it is always reached (or the shape is not handled, which keeps
* the unconditional outline), and "later" when an operand in front of it holds a table
* expression itself, which must be outlined first. Operands with method calls or NEW are not
* repeated in a guard, as that would evaluate them twice. */
private shortCircuitGuard(cond: ExpressionNode | undefined, target: ExpressionNode): string[] | "later" {
if (cond === undefined) {
return [];
}
const guard: ExpressionNode[] = [];
const negated: ExpressionNode[][] = [];
let term: ExpressionNode[] = [];
for (const child of cond.getChildren()) {
if (child instanceof TokenNode) {
const operator = child.getFirstToken().getStr().toUpperCase();
if (operator === "EQUIV") {
return [];
} else if (operator === "OR") {
negated.push(term);
term = [];
}
continue;
} else if (!(child instanceof ExpressionNode)) {
return [];
}
if (child.findAllExpressionsRecursive(Expressions.FieldChain).includes(target) === false) {
term.push(child);
continue;
}
guard.push(...term);
let inner: string[] = [];
if (child.get() instanceof Expressions.CondSub) {
const found = this.shortCircuitGuard(child.findDirectExpression(Expressions.Cond), target);
if (found === "later") {
return found;
}
inner = found;
}
const operands = [...negated.flat(), ...guard];
if (operands.some(o => o.findFirstExpression(Expressions.TableExpression) !== undefined)) {
return "later";
}
for (const o of operands) {
if (o.findFirstExpression(Expressions.NewObject) !== undefined) {
return [];
}
for (const m of o.findAllExpressionsRecursive(Expressions.MethodCall)) {
const name = m.findDirectExpression(Expressions.MethodName)?.concatTokens().toUpperCase();
if (BuiltIn.searchBuiltin(name) === undefined) {
return [];
}
}
}
return [
...negated.map(t => "NOT ( " + t.map(o => o.concatTokens()).join(" AND ") + " )"),
...guard.map(o => o.concatTokens()),
...inner];
}
return [];
}
private tableCondition(tableExpression: ExpressionNode) {
let condition = "";
let keyName = "";
for (const c of tableExpression.getChildren() || []) {
if (c.getFirstToken().getStr() === "[" || c.getFirstToken().getStr() === "]") {
continue;
} else if (c.get() instanceof Expressions.ComponentChainSimple && condition === "") {
if (keyName === "") {
condition = "WITH KEY ";
} else {
condition = "WITH TABLE KEY " + keyName + " COMPONENTS ";
}
} else if (c.get() instanceof Expressions.Source && condition === "") {
condition = "INDEX ";
} else if (c instanceof TokenNode && c.getFirstToken().getStr().toUpperCase() === "KEY") {
continue;
} else if (c.get() instanceof Expressions.SimpleName) {
keyName = c.concatTokens();
continue;
}
condition += c.concatTokens() + " ";
}
return condition;
}
/** A built-in function is only recognized as one in an operand position that admits an
* expression, and "WITH KEY comp = ..." does not become such a position until v740. The
* table expression rewrites carry the key operand over verbatim, so
* "tab[ comp = to_upper( x ) ]" downports to a READ TABLE that a 702 or 731 compiler can
* only read as a functional method call - "method TO_UPPER is unknown", reported as a
* SYNTAX_ERROR of the whole class pool. Hoist the call into a variable first, an
* assignment IS an expression position at 702.
*
* Built-ins that predate 702 (lines, strlen, numofchar, ...) carry no release in
* BuiltIn.methods; they are accepted in the operand as they are and stay untouched. So do
* functional method calls, which are exactly the reading that makes the built-in fail, and
* the INDEX operand of "tab[ 1 ]", which is not a key operand. */
private outlineTableExpressionKeyBuiltin(low: StatementNode, high: StatementNode, lowFile: ABAPFile,
highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
for (const tableExpression of high.findAllExpressionsRecursive(Expressions.TableExpression)) {
let afterComponent = false;
for (const child of tableExpression.getChildren()) {
if (child.get() instanceof Expressions.ComponentChainSimple) {
afterComponent = true;
continue;
} else if (afterComponent === false
|| !(child.get() instanceof Expressions.Source)
|| !(child instanceof ExpressionNode)) {
continue;
}
const type = this.builtinReturnType(child, lowFile, highSyntax);
if (type === undefined) {
continue;
}
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
const code = `DATA ${uniqueName} TYPE ${type}.\n` +
indentation + `${uniqueName} = ${child.concatTokens()}.\n` +
indentation;
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, child.getFirstToken().getStart(), child.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, child.getFirstToken(), "Outline built-in function in table expression key",
this.getMetadata().key, this.conf.severity, fix);
}
}
return undefined;
}
/** INSERT substring( ... ) INTO TABLE tab, the operand is outlined into a variable */
private outlineInsertBuiltin(low: StatementNode, high: StatementNode, lowFile: ABAPFile,
highSyntax: ISyntaxResult): Issue | undefined {
if (!(high.get() instanceof Statements.InsertInternal)) {
return undefined;
} else if (this.lowReg.getConfig().isOpenABAP()) {
return undefined;
} else if (low.getFirstToken().getStart() instanceof VirtualPosition) {
return undefined;
}
// the whole operand is the call, a longer expression is outlined by replaceInsertExpression
const source = high.getChildren()[1];
if (!(source instanceof ExpressionNode)
|| !(source.get() instanceof Expressions.SimpleSource4 || source.get() instanceof Expressions.Source)
|| source.getChildren().length !== 1
|| !(source.getFirstChild()?.get() instanceof Expressions.MethodCallChain)) {
return undefined;
}
const type = this.builtinReturnType(source, lowFile, highSyntax);
if (type === undefined) {
return undefined;
}
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
const code = `DATA ${uniqueName} TYPE ${type}.\n` +
indentation + `${uniqueName} = ${source.concatTokens()}.\n` +
indentation;
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, source.getFirstToken().getStart(), source.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, source.getFirstToken(), "Outline built-in function in INSERT",
this.getMetadata().key, this.conf.severity, fix);
}
/** MOVE-CORRESPONDING between internal tables is possible from v740sp05, in 702 move row by row;
* a typed target must be a standard table, as a row is added before its fields are filled, and a
* fully generic target carries no table kind, so its row is added with INSERT INTO TABLE */
private downportMoveCorrespondingTables(high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(high.get() instanceof Statements.MoveCorresponding)) {
return undefined;
} else if (this.lowReg.getConfig().isOpenABAP()) {
return undefined;
}
const concat = high.concatTokens().toUpperCase();
if (concat.includes(" EXPANDING NESTED TABLES") || concat.startsWith("MOVE-CORRESPONDING EXACT ")) {
return undefined;
}
const keeping = concat.includes(" KEEPING TARGET LINES");
// only plain variables and field symbols, their types are known from the scope
const source = high.findDirectExpression(Expressions.Source);
const sourceField = source?.getFirstChild();
const target = high.findDirectExpression(Expressions.SimpleTarget);
if (source === undefined
|| target === undefined
|| source.getChildren().length !== 1
|| !(sourceField?.get() instanceof Expressions.FieldChain)
|| sourceField.getChildren().length !== 1
|| target.getChildren().length !== 1) {
return undefined;
}
const sourceName = source.concatTokens();
const targetName = target.concatTokens();
if (sourceName.toUpperCase() === targetName.toUpperCase()) {
return undefined;
}
const spag = highSyntax.spaghetti.lookupPosition(high.getFirstToken().getStart(), lowFile.getFilename());
const sourceType = spag?.findVariable(sourceName)?.getType();
const targetType = spag?.findVariable(targetName)?.getType();
if (!(sourceType instanceof TableType)
|| !(targetType instanceof TableType)
|| sourceType.isWithHeader() === true
|| targetType.isWithHeader() === true
|| (targetType.getAccessType() !== TableAccessType.standard && targetType.getAccessType() !== undefined)) {
return undefined;
}
for (const t of [sourceType, targetType]) {
const row = t.getRowType();
if (!(row instanceof StructureType || row instanceof AnyType || row instanceof VoidType)) {
return undefined;
}
}
const fsType = (name: string, type: TableType) => type.isGeneric() ? "TYPE any" : "LIKE LINE OF " + name;
const sourceFS = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax, true);
const targetFS = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax, true);
const addRow = targetType.getAccessType() === undefined
? `INSERT INITIAL LINE INTO TABLE ${targetName}`
: `APPEND INITIAL LINE TO ${targetName}`;
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
const code = `FIELD-SYMBOLS ${sourceFS} ${fsType(sourceName, sourceType)}.\n` +
indentation + `FIELD-SYMBOLS ${targetFS} ${fsType(targetName, targetType)}.\n` +
(keeping ? "" : indentation + `CLEAR ${targetName}.\n`) +
indentation + `LOOP AT ${sourceName} ASSIGNING ${sourceFS}.\n` +
indentation + ` ${addRow} ASSIGNING ${targetFS}.\n` +
indentation + ` MOVE-CORRESPONDING ${sourceFS} TO ${targetFS}.\n` +
indentation + `ENDLOOP.`;
const fix = EditHelper.replaceRange(lowFile, high.getFirstToken().getStart(), high.getLastToken().getEnd(), code);
return Issue.atToken(lowFile, high.getFirstToken(), "Downport MOVE-CORRESPONDING with tables",
this.getMetadata().key, this.conf.severity, fix);
}
/** the ABAP type returned by the built-in function this Source starts with, or undefined
* if it does not start with one, or with one that predates 702 */
private builtinReturnType(source: ExpressionNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): string | undefined {
const spag = highSyntax.spaghetti.lookupPosition(source.getFirstToken().getStart(), lowFile.getFilename());
for (const r of spag?.getData().references || []) {
if (r.referenceType !== ReferenceType.BuiltinMethodReference
|| r.position.getStart().equals(source.getFirstToken().getStart()) === false) {
continue;
}
const name = r.position.getName().toUpperCase();
if (BuiltIn.methods[name]?.release === undefined) {
return undefined;
}
return BuiltIn.searchBuiltin(name)?.getParameters().getReturning()?.getType().toABAP();
}
return undefined;
}
private outlineCatchSimple(node: StatementNode, lowFile: ABAPFile): Issue | undefined {
// outlines "CATCH cx_bcs INTO DATA(lx_bcs_excep).", note that this does not need to look at types
if (this.lowReg.getConfig().isOpenABAP()) {
return undefined;
}
if (!(node.get() instanceof Statements.Catch)) {
return undefined;
}
const target = node.findFirstExpression(Expressions.Target);
if (!(target?.getFirstChild()?.get() instanceof Expressions.InlineData)) {
return undefined;
}
const classNames = node.findDirectExpressions(Expressions.ClassName);
if (classNames.length !== 1) {
return undefined;
}
const className = classNames[0].concatTokens();
const targetName = target.findFirstExpression(Expressions.TargetField)?.concatTokens();
const indentation = " ".repeat(node.getFirstToken().getStart().getCol() - 1);
const code = ` DATA ${targetName} TYPE REF TO ${className}.
${indentation}CATCH ${className} INTO ${targetName}.`;
const fix = EditHelper.replaceRange(lowFile, node.getStart(), node.getEnd(), code);
return Issue.atToken(lowFile, node.getFirstToken(), "Outline DATA", this.getMetadata().key, this.conf.severity, fix);
}
/** the type of a reference to the source: LIKE REF TO it, or REF TO data when its type is generic,
* as LIKE REF TO a generically typed field symbol or parameter does not activate */
private refTypeOf(sourceName: string, node: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): string {
const spag = highSyntax.spaghetti.lookupPosition(node.getFirstToken().getStart(), lowFile.getFilename());
if (spag?.findVariable(sourceName)?.getType().isGeneric() === true) {
return "TYPE REF TO data";
}
return "LIKE REF TO " + sourceName;
}
private outlineGetReferenceSimple(node: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(node.get() instanceof Statements.GetReference)) {
return undefined;
}
const target = node.findFirstExpression(Expressions.Target);
if (!(target?.getFirstChild()?.get() instanceof Expressions.InlineData)) {
return undefined;
}
const source = node.findFirstExpression(Expressions.Source);
if (!(source?.getFirstChild()?.get() instanceof Expressions.FieldChain)) {
return undefined;
}
const targetName = target.findFirstExpression(Expressions.TargetField)?.concatTokens() || "errorError";
const indentation = " ".repeat(node.getFirstToken().getStart().getCol() - 1);
const firstToken = target.getFirstToken();
const lastToken = target.getLastToken();
const refType = this.refTypeOf(source.concatTokens(), node, lowFile, highSyntax);
const fix1 = EditHelper.insertAt(lowFile, node.getStart(), `DATA ${targetName} ${refType}.\n${indentation}`);
const fix2 = EditHelper.replaceRange(lowFile, firstToken.getStart(), lastToken.getEnd(), targetName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, node.getFirstToken(), "Outline DATA", this.getMetadata().key, this.conf.severity, fix);
}
private outlineDataSimple(node: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(node.get() instanceof Statements.Move)) {
return undefined;
}
if (this.lowReg.getConfig().isOpenABAP()) {
return undefined;
}
const target = node.findFirstExpression(Expressions.Target);
if (!(target?.getFirstChild()?.get() instanceof Expressions.InlineData)) {
return undefined;
}
let type: string;
const source = node.findFirstExpression(Expressions.Source);
if (source === undefined) {
return undefined;
} else if (source.getChildren().length !== 1) {
return undefined;
} else if (!(source.getFirstChild()?.get() instanceof Expressions.FieldChain)) {
return undefined;
} else if (source.findFirstExpression(Expressions.FieldOffset)) {
return undefined;
} else if (source.findFirstExpression(Expressions.FieldLength)) {
return undefined;
} else if (source.findFirstExpression(Expressions.TableExpression)) {
const chain = source.findDirectExpression(Expressions.FieldChain);
if (chain !== undefined
&& chain.getChildren().length === 2
&& chain.getChildren()[0].get() instanceof Expressions.SourceField
&& chain.getChildren()[1].get() instanceof Expressions.TableExpression) {
type = "LINE OF " + chain.getChildren()[0].concatTokens();
} else {
return undefined;
}
} else {
const spag = highSyntax.spaghetti.lookupPosition(source.getFirstToken().getStart(), lowFile.getFilename());
if (spag) {
const found = spag.findVariable(source.concatTokens());
if (found && found.getType().isGeneric() === true) {
return undefined;
}
}
type = source.concatTokens();
}
const targetName = target.findFirstExpression(Expressions.TargetField)?.concatTokens();
const indentation = " ".repeat(node.getFirstToken().getStart().getCol() - 1);
const firstToken = node.getFirstToken();
const lastToken = node.getLastToken();
const fix1 = EditHelper.insertAt(lowFile, firstToken.getStart(), `DATA ${targetName} LIKE ${type}.\n${indentation}`);
const fix2 = EditHelper.replaceRange(lowFile, firstToken.getStart(), lastToken.getEnd(), `${targetName} = ${source.concatTokens()}.`);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, node.getFirstToken(), "Outline DATA", this.getMetadata().key, this.conf.severity, fix);
}
private partiallyImplemented(node: StatementNode, lowFile: ABAPFile): Issue | undefined {
if (this.lowReg.getConfig().isOpenABAP()) {
return undefined;
}
if (node.get() instanceof Statements.InterfaceDef) {
const partially = node.findDirectTokenByText("PARTIALLY");
if (partially === undefined) {
return undefined;
}
const implemented = node.findDirectTokenByText("IMPLEMENTED");
if (implemented === undefined) {
return undefined;
}
const fix = EditHelper.deleteRange(lowFile, partially.getStart(), implemented.getEnd());
return Issue.atToken(lowFile, partially, "Downport PARTIALLY IMPLEMENTED", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
private raiseException(node: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
/*
Note: IF_T100_DYN_MSG does not exist in 702, so this rule is mostly relevant for the transpiler
DATA foo LIKE if_t100_message=>t100key.
foo-msgid = 'ZHVAM'.
foo-msgno = '001'.
foo-attr1 = 'IF_T100_DYN_MSG~MSGV1'.
foo-attr2 = 'IF_T100_DYN_MSG~MSGV2'.
foo-attr3 = 'IF_T100_DYN_MSG~MSGV3'.
foo-attr4 = 'IF_T100_DYN_MSG~MSGV4'.
DATA bar TYPE REF TO zcl_hvam_exception.
CREATE OBJECT bar EXPORTING textid = foo.
bar->if_t100_dyn_msg~msgty = 'E'.
bar->if_t100_dyn_msg~msgv1 = 'abc'.
bar->if_t100_dyn_msg~msgv2 = 'abc'.
bar->if_t100_dyn_msg~msgv3 = 'abc'.
bar->if_t100_dyn_msg~msgv4 = 'abc'.
RAISE EXCEPTION bar.
*/
if (!(node.get() instanceof Statements.Raise)) {
return undefined;
}
let id: string | undefined;
let number: string | undefined;
let startToken = node.findDirectTokenByText("ID");
if (startToken) {
const sources = node.findDirectExpressions(Expressions.Source);
id = sources[0].concatTokens();
const numberExpression = node.findExpressionAfterToken("NUMBER");
if (numberExpression === undefined) {
throw "downport raiseException, could not find number";
}
number = numberExpression.concatTokens();
if (numberExpression.get() instanceof Expressions.MessageNumber) {
number = "'" + number + "'";
}
} else {
const s = node.findDirectExpression(Expressions.MessageSource);
if (s === undefined) {
return undefined;
}
if (s.findDirectExpression(Expressions.MessageClass)) {
id = "'" + s.findDirectExpression(Expressions.MessageClass)?.concatTokens()?.toUpperCase() + "'";
} else {
id = s.findExpressionAfterToken("ID")?.concatTokens();
}
if (s.findDirectExpression(Expressions.MessageTypeAndNumber)) {
number = "'" + s.findDirectExpression(Expressions.MessageTypeAndNumber)?.concatTokens().substring(1) + "'";
} else {
number = s.findExpressionAfterToken("NUMBER")?.concatTokens();
}
startToken = node.getFirstToken();
}
const withs = node.findDirectExpression(Expressions.RaiseWith)?.findDirectExpressionsMulti([Expressions.SimpleSource1, Expressions.Source]) || [];
const className = node.findDirectExpression(Expressions.ClassName)?.concatTokens() || "ERROR";
const uniqueName1 = this.uniqueName(node.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const uniqueName2 = this.uniqueName(node.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(node.getFirstToken().getStart().getCol() - 1);
let abap = `DATA ${uniqueName1} LIKE if_t100_message=>t100key.
${indentation}${uniqueName1}-msgid = ${id}.
${indentation}${uniqueName1}-msgno = ${number}.\n`;
if (withs.length > 0) {
abap += `${indentation}${uniqueName1}-attr1 = 'IF_T100_DYN_MSG~MSGV1'.
${indentation}${uniqueName1}-attr2 = 'IF_T100_DYN_MSG~MSGV2'.
${indentation}${uniqueName1}-attr3 = 'IF_T100_DYN_MSG~MSGV3'.
${indentation}${uniqueName1}-attr4 = 'IF_T100_DYN_MSG~MSGV4'.\n`;
}
abap += `${indentation}DATA ${uniqueName2} TYPE REF TO ${className}.
${indentation}CREATE OBJECT ${uniqueName2}.
${indentation}${uniqueName2}->if_t100_message~t100key = ${uniqueName1}.\n`;
if (withs.length > 0) {
abap += `${indentation}${uniqueName2}->if_t100_dyn_msg~msgty = 'E'.\n`;
}
let count = 1;
for (const w of withs) {
abap += `${indentation}${uniqueName2}->if_t100_dyn_msg~msgv${count} = ${w.concatTokens()}.\n`;
count++;
}
abap += `${indentation}RAISE EXCEPTION ${uniqueName2}.`;
const fix = EditHelper.replaceRange(lowFile, node.getStart(), node.getEnd(), abap);
return Issue.atToken(lowFile, startToken, "Downport RAISE EXCEPTION MESSAGE", this.getMetadata().key, this.conf.severity, fix);
}
private emptyKey(low: StatementNode, node: StatementNode, lowFile: ABAPFile): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
for (let i of node.findAllExpressions(Expressions.TypeTable)) {
const key = i.findDirectExpression(Expressions.TypeTableKey);
if (key === undefined) {
continue;
}
i = key;
const concat = i.concatTokens();
if (concat.toUpperCase().includes("WITH EMPTY KEY") === false) {
continue;
}
const token = i.findDirectTokenByText("EMPTY");
if (token === undefined) {
continue;
}
const fix = EditHelper.replaceToken(lowFile, token, "DEFAULT");
return Issue.atToken(lowFile, i.getFirstToken(), "Downport EMPTY KEY", this.getMetadata().key, this.conf.severity, fix);
}
if (node.get() instanceof Statements.CreateData) {
// the key of CREATE DATA is not a TypeTableKey expression, its keywords are direct tokens
const tokens = node.getChildren().filter(c => c instanceof TokenNode).map(c => c.getFirstToken());
for (let j = 0; j < tokens.length - 1; j++) {
if (tokens[j].getStr().toUpperCase() === "EMPTY" && tokens[j + 1].getStr().toUpperCase() === "KEY") {
const fix = EditHelper.replaceToken(lowFile, tokens[j], "DEFAULT");
return Issue.atToken(lowFile, tokens[j], "Downport EMPTY KEY", this.getMetadata().key, this.conf.severity, fix);
}
}
}
return undefined;
}
private callFunctionParameterSimple(high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(high.get() instanceof Statements.CallFunction)) {
return undefined;
}
let found: ExpressionNode | undefined = undefined;
for (const p of high.findAllExpressions(Expressions.FunctionExportingParameter)) {
found = p.findDirectExpression(Expressions.Source);
if (found && (found.findDirectExpression(Expressions.FieldChain)
|| found.findDirectExpression(Expressions.Constant)
|| found.findDirectExpression(Expressions.TextElement))) {
// its actually simple, ok
found = undefined;
} else if (found !== undefined) {
break;
}
}
if (found === undefined) {
return undefined;
}
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const code = `DATA(${uniqueName}) = ${found.concatTokens()}.\n`;
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, found.getFirstToken().getStart(), found.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, high.getFirstToken(), "Downport, call function parameter", this.getMetadata().key, this.conf.severity, fix);
}
private downportCorrespondingSimple(high: StatementNode, lowFile: ABAPFile): Issue | undefined {
if (!(high.get() instanceof Statements.Move)
|| high.getChildren().length !== 4
|| high.getChildren()[2].getFirstToken().getStr().toUpperCase() !== "CORRESPONDING") {
return undefined;
}
const target = high.findDirectExpression(Expressions.Target);
if (target === undefined) {
return undefined;
}
const sourceRef = high.findFirstExpression(Expressions.Source)?.findFirstExpression(Expressions.CorrespondingBody);
if (sourceRef?.getChildren().length === 1 && target.concatTokens().toUpperCase().startsWith("DATA(") === false) {
const code = `MOVE-CORRESPONDING ${sourceRef.concatTokens()} TO ${target.concatTokens()}`;
const start = high.getFirstToken().getStart();
const end = high.getLastToken().getStart();
const fix = EditHelper.replaceRange(lowFile, start, end, code);
return Issue.atToken(lowFile, high.getFirstToken(), "Downport, simple CORRESPONDING move", this.getMetadata().key, this.conf.severity, fix);
} else if (sourceRef?.getChildren().length === 2 && sourceRef.findDirectExpression(Expressions.CorrespondingBodyBase) !== undefined) {
const base = sourceRef.findDirectExpression(Expressions.CorrespondingBodyBase)!;
let code = `${target.concatTokens()} = ${base.getChildren()[2].concatTokens()}.\n`;
code += `MOVE-CORRESPONDING ${sourceRef.getChildren()[1].concatTokens()} TO ${target.concatTokens()}`;
const start = high.getFirstToken().getStart();
const end = high.getLastToken().getStart();
const fix = EditHelper.replaceRange(lowFile, start, end, code);
return Issue.atToken(lowFile, high.getFirstToken(), "Downport, CORRESPONDING BASE move", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
private downportRefSimple(high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(high.get() instanceof Statements.Move)
|| high.getChildren().length !== 4
|| high.getChildren()[2].getFirstToken().getStr().toUpperCase() !== "REF") {
return undefined;
}
const target = high.findDirectExpression(Expressions.Target);
if (target === undefined) {
return undefined;
}
const sourceRef = high.findFirstExpression(Expressions.Source)?.findDirectExpression(Expressions.Source);
if (sourceRef === undefined
|| sourceRef.getChildren().length !== 1) {
return undefined;
}
let code: string;
if (sourceRef.findFirstExpression(Expressions.TableExpression)) {
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
code = `ASSIGN ${sourceRef.concatTokens()} TO FIELD-SYMBOL(<${uniqueName}>).
IF sy-subrc <> 0.
RAISE EXCEPTION TYPE cx_sy_itab_line_not_found.
ENDIF.
GET REFERENCE OF <${uniqueName}> INTO ${target.concatTokens()}`;
} else {
const concat = target.concatTokens();
code = `GET REFERENCE OF ${sourceRef.concatTokens()} INTO ${concat}`;
// workaround for handling generic ANY type,
if (concat.toUpperCase().startsWith("DATA(")) {
const spag = highSyntax.spaghetti.lookupPosition(high.getFirstToken().getStart(), lowFile.getFilename());
if (spag !== undefined) {
const found = spag.findVariable(sourceRef.concatTokens());
const tt = found?.getType();
if (tt instanceof AnyType) {
const tname = target.findFirstExpression(Expressions.TargetField)?.concatTokens();
code = `DATA ${tname} TYPE REF TO data.\nGET REFERENCE OF ${sourceRef.concatTokens()} INTO ${tname}`;
}
}
}
}
const start = high.getFirstToken().getStart();
const end = high.getLastToken().getStart();
const fix = EditHelper.replaceRange(lowFile, start, end, code);
return Issue.atToken(lowFile, high.getFirstToken(), "Downport, simple REF move", this.getMetadata().key, this.conf.severity, fix);
}
private downportLoopGroup(high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult, highFile: ABAPFile): Issue | undefined {
if (!(high.get() instanceof Statements.Loop)) {
return undefined;
}
const group = high.findDirectExpression(Expressions.LoopGroupBy);
if (group === undefined) {
return undefined;
}
const groupTargetName = group.findFirstExpression(Expressions.TargetField)?.concatTokens()
|| group.findFirstExpression(Expressions.TargetFieldSymbol)?.concatTokens().replace("<", "_").replace(">", "_")
|| "nameNotFound";
const loopSourceName = high.findFirstExpression(Expressions.SimpleSource2)?.concatTokens() || "nameNotFound";
const loopTargetName = high.findFirstExpression(Expressions.TargetField)?.concatTokens()
|| high.findFirstExpression(Expressions.TargetFieldSymbol)?.concatTokens()
|| "nameNotFound";
const groupTarget = group.findDirectExpression(Expressions.LoopGroupByTarget)?.concatTokens() || "";
const isReference = high.findFirstExpression(Expressions.LoopTarget)?.concatTokens().toUpperCase().startsWith("REFERENCE INTO ");
let loopSourceRowType = "typeNotFound";
const spag = highSyntax.spaghetti.lookupPosition(high.getFirstToken().getStart(), lowFile.getFilename());
if (spag !== undefined) {
const found = spag.findVariable(loopSourceName);
const tt = found?.getType();
if (tt instanceof TableType) {
loopSourceRowType = tt.getRowType().getQualifiedName() || "typeNotFound";
}
}
let code = `TYPES: BEGIN OF ${groupTargetName}type,\n`;
let condition = "";
let groupCountName: string | undefined = undefined;
let groupIndexName: string | undefined = undefined;
for (const c of group.findAllExpressions(Expressions.LoopGroupByComponent)) {
const name = c.findFirstExpression(Expressions.ComponentName);
let type = c.findFirstExpression(Expressions.Source)?.concatTokens() || "todo";
if (c.concatTokens()?.toUpperCase().endsWith(" = GROUP SIZE")) {
type = "i";
groupCountName = name?.concatTokens();
} else if (c.concatTokens()?.toUpperCase().endsWith(" = GROUP INDEX")) {
type = "i";
groupIndexName = name?.concatTokens();
} else {
if (condition !== "") {
condition += " ";
}
condition += c.concatTokens();
type = type.replace(loopTargetName, loopSourceRowType);
type = type.replace("->", "-");
}
code += ` ${name?.concatTokens()} TYPE ${type},\n`;
}
const s = group.findDirectExpression(Expressions.Source);
let singleName = "";
if (s) {
let type = s.concatTokens();
type = type.replace(loopTargetName, loopSourceRowType);
type = type.replace("->", "-");
singleName = s.concatTokens().split("-")[1];
code += ` ${singleName} TYPE ${type},\n`;
condition = singleName + " = " + s.concatTokens();
}
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const uniqueFS = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const uniqueNameIndex = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
code += ` items LIKE ${loopSourceName},
END OF ${groupTargetName}type.
DATA ${groupTargetName}tab TYPE STANDARD TABLE OF ${groupTargetName}type WITH DEFAULT KEY.
DATA ${uniqueName} LIKE LINE OF ${groupTargetName}tab.
LOOP AT ${loopSourceName} ${high.findFirstExpression(Expressions.LoopTarget)?.concatTokens()}.\n`;
if (groupIndexName !== undefined) {
code += `DATA(${uniqueNameIndex}) = sy-tabix.\n`;
}
code += `READ TABLE ${groupTargetName}tab ASSIGNING FIELD-SYMBOL(<${uniqueFS}>) WITH KEY ${condition}.
IF sy-subrc = 0.\n`;
if (groupCountName !== undefined) {
code += ` <${uniqueFS}>-${groupCountName} = <${uniqueFS}>-${groupCountName} + 1.\n`;
}
code += ` INSERT ${loopTargetName}${isReference ? "->*" : ""} INTO TABLE <${uniqueFS}>-items.
ELSE.\n`;
code += ` CLEAR ${uniqueName}.\n`;
for (const c of group.findAllExpressions(Expressions.LoopGroupByComponent)) {
const concat = c.concatTokens();
// console.dir(concat);
if (concat.endsWith(" GROUP INDEX")) {
code += ` ${uniqueName}-${groupIndexName} = ${uniqueNameIndex}.\n`;
} else if (concat.endsWith(" GROUP SIZE")) {
code += ` ${uniqueName}-${groupCountName} = 1.\n`;
} else {
code += ` ${uniqueName}-${concat}.\n`;
}
}
if (singleName !== "") {
code += ` ${uniqueName}-${singleName} = ${loopTargetName}-${singleName}.\n`;
}
code += ` INSERT ${loopTargetName}${isReference ? "->*" : ""} INTO TABLE ${uniqueName}-items.\n`;
code += ` INSERT ${uniqueName} INTO TABLE ${groupTargetName}tab.\n`;
code += `ENDIF.
ENDLOOP.
LOOP AT ${groupTargetName}tab ${groupTarget}.`;
let fix = EditHelper.replaceRange(lowFile, high.getFirstToken().getStart(), high.getLastToken().getEnd(), code);
for (const l of highFile.getStructure()?.findAllStructures(Structures.Loop) || []) {
// make sure to find the correct/current loop statement
if (l.findDirectStatement(Statements.Loop) !== high) {
continue;
}
for (const loop of l.findAllStatements(Statements.Loop)) {
if (loop.concatTokens()?.toUpperCase().startsWith("LOOP AT GROUP ")) {
const subLoopSource = loop.findFirstExpression(Expressions.SimpleSource2);
if (subLoopSource === undefined) {
continue;
}
const subLoopSourceName = subLoopSource?.concatTokens() || "nameNotFound";
const subCode = `LOOP AT ${subLoopSourceName}${isReference ? "->" : "-"}items`;
const subFix = EditHelper.replaceRange(lowFile, loop.getFirstToken().getStart(), subLoopSource.getLastToken().getEnd(), subCode);
fix = EditHelper.merge(subFix, fix);
}
}
}
return Issue.atToken(lowFile, high.getFirstToken(), "Downport, LOOP GROUP", this.getMetadata().key, this.conf.severity, fix);
}
private downportRef(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
let found: ExpressionNode | undefined = undefined;
for (const s of high.findAllExpressionsRecursive(Expressions.Source)) {
if (s.getFirstToken().getStr().toUpperCase() === "REF"
&& s.findDirectExpression(Expressions.TypeNameOrInfer)) {
found = s;
}
}
if (found === undefined) {
return undefined;
}
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const code = `DATA(${uniqueName}) = ${found.concatTokens()}.\n`;
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, found.getFirstToken().getStart(), found.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, high.getFirstToken(), "Downport, REF", this.getMetadata().key, this.conf.severity, fix);
}
private assignWithTable(low: StatementNode, high: StatementNode, lowFile: ABAPFile): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
if (!(high.get() instanceof Statements.Assign)) {
return undefined;
} else if (high.getChildren().length !== 5) {
return undefined;
}
const fieldChain = high.findDirectExpression(Expressions.AssignSource)?.findDirectExpression(Expressions.Source)?.findDirectExpression(Expressions.FieldChain);
const tableExpression = fieldChain?.getLastChild();
if (tableExpression === undefined
|| !(tableExpression.get() instanceof Expressions.TableExpression)
|| !(tableExpression instanceof ExpressionNode)) {
return undefined;
}
let condition: string;
if (tableExpression.getChildren().length === 3) {
const index = tableExpression.findDirectExpression(Expressions.Source);
if (index === undefined) {
return undefined;
}
condition = `INDEX ${index.concatTokens()}`;
} else {
let concat = tableExpression.concatTokens();
concat = concat.substring(2);
concat = concat.substring(0, concat.length - 2);
condition = `WITH KEY ${concat}`;
}
let pre = "";
for (const c of fieldChain!.getChildren()) {
if (c === tableExpression) {
break;
}
pre += c.concatTokens();
}
const fsTarget = high.findDirectExpression(Expressions.FSTarget);
const code = `READ TABLE ${pre} ${condition} ASSIGNING ${fsTarget?.concatTokens()}.`;
const fix = EditHelper.replaceRange(lowFile, high.getFirstToken().getStart(), high.getLastToken().getEnd(), code);
return Issue.atToken(lowFile, high.getFirstToken(), "Downport, ASSIGN table expr", this.getMetadata().key, this.conf.severity, fix);
}
private assignComponent(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
if (!(high.get() instanceof Statements.Assign)) {
return undefined;
}
const assignSource = high.findDirectExpression(Expressions.AssignSource);
if (assignSource === undefined || assignSource.getFirstToken().getStr().toUpperCase() !== "COMPONENT") {
return undefined;
}
const componentSource = assignSource.findExpressionAfterToken("COMPONENT");
if (componentSource === undefined || componentSource.get() instanceof Expressions.SimpleSource3) {
return undefined;
}
const uniqueName = this.uniqueName(assignSource.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const code = `DATA(${uniqueName}) = ${componentSource.concatTokens()}.\n`;
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, componentSource.getFirstToken().getStart(), componentSource.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, high.getFirstToken(), "Downport, ASSIGN COMPONENT source", this.getMetadata().key, this.conf.severity, fix);
}
private moveWithSimpleValue(low: StatementNode, high: StatementNode, lowFile: ABAPFile): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
if (!(high.get() instanceof Statements.Move)
|| high.getChildren().length !== 4) {
return undefined;
}
const target = high.findDirectExpression(Expressions.Target);
if (target === undefined) {
return undefined;
}
const source = high.findDirectExpression(Expressions.Source);
if (source === undefined) {
return undefined;
}
const field = target.findDirectExpression(Expressions.TargetField);
if (field === undefined) {
return;
}
const valueBody = source.findDirectExpression(Expressions.ValueBody);
if (valueBody === undefined) {
return;
}
const type = source.findDirectExpression(Expressions.TypeNameOrInfer);
if (type === undefined || type?.concatTokens() !== "#") {
return;
}
const fieldAssignments = valueBody.findDirectExpressions(Expressions.FieldAssignment);
if (fieldAssignments.length === 0) {
return;
} else if (fieldAssignments.length !== valueBody.getChildren().length) {
return;
}
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
let code = `CLEAR ${target.concatTokens()}.\n`;
for (const fieldAssignment of fieldAssignments) {
code += indentation + target.concatTokens() + "-" + fieldAssignment.concatTokensWithLinebreaks() + `.\n`;
}
code = code.trimEnd();
const start = high.getFirstToken().getStart();
const end = high.getLastToken().getEnd();
const fix = EditHelper.replaceRange(lowFile, start, end, code);
return Issue.atToken(lowFile, high.getFirstToken(), "Downport, simple move", this.getMetadata().key, this.conf.severity, fix);
}
// note, downporting ENUM does not give the correct types, but it will work in most cases?
private downportEnum(_low: StatementNode, high: StatementNode, lowFile: ABAPFile,
_highSyntax: ISyntaxResult, highFile: ABAPFile): Issue | undefined {
if (!(high.get() instanceof Statements.TypeEnumBegin)) {
return undefined;
}
const enumStructure = highFile.getStructure()?.findFirstStructure(Structures.TypeEnum);
if (enumStructure === undefined) {
return undefined;
}
if (enumStructure.getFirstStatement() !== high) {
return undefined;
}
const enumName = high.findExpressionAfterToken("ENUM")?.concatTokens();
const structureName = high.findExpressionAfterToken("STRUCTURE")?.concatTokens();
// all ENUMS are char like?
let code = `TYPES ${enumName} TYPE string.
CONSTANTS: BEGIN OF ${structureName},\n`;
let count = 1;
for (const e of enumStructure.findDirectStatements(Statements.TypeEnum).concat(enumStructure.findDirectStatements(Statements.Type))) {
const name = e.findFirstExpression(Expressions.NamespaceSimpleName)?.concatTokens();
let value = e.findFirstExpression(Expressions.Value)?.concatTokens();
if (value === undefined) {
value = "VALUE '" + count++ + "'";
}
code += ` ${name} TYPE ${enumName} ${value},\n`;
}
code += ` END OF ${structureName}.`;
const start = enumStructure.getFirstToken().getStart();
const end = enumStructure.getLastToken().getEnd();
const fix = EditHelper.replaceRange(lowFile, start, end, code);
return Issue.atToken(lowFile, high.getFirstToken(), "Downport ENUM", this.getMetadata().key, this.conf.severity, fix);
}
private moveWithTableTarget(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
let target: ExpressionNode | undefined = undefined;
if (high.get() instanceof Statements.Move) {
target = high.findDirectExpression(Expressions.Target);
} else if (high.get() instanceof Statements.Clear
|| high.get() instanceof Statements.Free
|| high.get() instanceof Statements.Append
|| high.get() instanceof Statements.InsertInternal) {
// the writable operand, eg. "CLEAR tab[ 1 ]-comp" or "APPEND 1 TO tab[ 1 ]-sub", is a Target
// just like the left-hand side of an assignment, so it is lowered the same way
target = high.findDirectExpressions(Expressions.Target).find(
t => t.findDirectExpression(Expressions.TableExpression) !== undefined);
}
if (target === undefined) {
return undefined;
}
const tableExpression = target.findDirectExpression(Expressions.TableExpression);
if (tableExpression === undefined) {
return undefined;
}
const index = tableExpression.findDirectExpression(Expressions.Source);
if (index === undefined) {
return undefined;
}
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax, true);
const tName = target.concatTokens().split("[")[0];
const condition = this.tableCondition(tableExpression);
const tabixBackup = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
// restore tabix before exeption
const code = `FIELD-SYMBOLS ${uniqueName} LIKE LINE OF ${tName}.
${indentation}DATA ${tabixBackup} LIKE sy-tabix.
${indentation}${tabixBackup} = sy-tabix.
${indentation}READ TABLE ${tName} ${condition}ASSIGNING ${uniqueName}.
${indentation}sy-tabix = ${tabixBackup}.
${indentation}IF sy-subrc <> 0.
${indentation} RAISE EXCEPTION TYPE cx_sy_itab_line_not_found.
${indentation}ENDIF.
${indentation}`;
const start = target.getFirstToken().getStart();
const end = tableExpression.findDirectTokenByText("]")?.getEnd();
if (end === undefined) {
return undefined;
}
// the READ TABLE goes in front of the statement, the target need not be its first operand
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, start, end, uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, high.getFirstToken(), "Downport, move with table target", this.getMetadata().key, this.conf.severity, fix);
}
private moveWithOperator(low: StatementNode, high: StatementNode, lowFile: ABAPFile): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
} else if (!(high.get() instanceof Statements.Move)) {
return undefined;
}
const children = high.getChildren();
const secondChild = children[1];
if (secondChild === undefined) {
return undefined;
}
const op = secondChild.getFirstToken();
let operator: string;
switch (op.getStr()) {
case "+":
operator = " + ";
break;
case "-":
operator = " - ";
break;
case "/=":
operator = " / ";
break;
case "*=":
operator = " * ";
break;
case "&&=":
operator = " && ";
break;
default:
return undefined;
}
const target = high.findDirectExpression(Expressions.Target)?.concatTokens();
if (target === undefined) {
return;
}
const sourceStart = high.findDirectExpression(Expressions.Source)?.getFirstChild()?.getFirstToken().getStart();
if (sourceStart === undefined) {
return;
}
const fix = EditHelper.replaceRange(lowFile, op.getStart(), sourceStart, "= " + target + operator);
return Issue.atToken(lowFile, high.getFirstToken(), "Expand operator", this.getMetadata().key, this.conf.severity, fix);
}
private stringTemplateAlpha(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
for (const child of high.findAllExpressionsRecursive(Expressions.StringTemplateSource)) {
const formatting = child.findDirectExpression(Expressions.StringTemplateFormatting)?.concatTokens().toUpperCase();
if (formatting === undefined
|| formatting?.startsWith("ALPHA = ") === false) {
continue;
}
let functionName: string;
switch (formatting) {
case "ALPHA = IN":
functionName = "CONVERSION_EXIT_ALPHA_INPUT";
break;
case "ALPHA = OUT":
functionName = "CONVERSION_EXIT_ALPHA_OUTPUT";
break;
default:
return undefined;
}
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
const source = child.findDirectExpression(Expressions.Source)?.concatTokens();
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const code = `DATA ${uniqueName} TYPE string.
${indentation}CALL FUNCTION '${functionName}'
${indentation} EXPORTING
${indentation} input = ${source}
${indentation} IMPORTING
${indentation} output = ${uniqueName}.\n`;
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, child.getFirstToken().getStart(), child.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, high.getFirstToken(), "Downport ALPHA", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
private outlineLoopInput(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
} else if (!(high.get() instanceof Statements.Loop)) {
return undefined;
} else if (high.findDirectExpression(Expressions.LoopSource)?.findDirectExpression(Expressions.SimpleSource2)) {
return undefined;
}
// the first Source must be outlined
const s = high.findDirectExpression(Expressions.LoopSource)?.findDirectExpression(Expressions.Source);
if (s === undefined) {
return undefined;
}
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const code = `DATA(${uniqueName}) = ${s.concatTokens()}.\n` +
" ".repeat(high.getFirstToken().getStart().getCol() - 1);
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, s.getFirstToken().getStart(), s.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, high.getFirstToken(), "Outline LOOP input", this.getMetadata().key, this.conf.severity, fix);
}
private outlineLoopTarget(node: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
// also allows outlining of voided types
if (!(node.get() instanceof Statements.Loop)) {
return undefined;
}
if (this.lowReg.getConfig().isOpenABAP()) {
return undefined;
}
const source = node.findDirectExpression(Expressions.LoopSource)?.findDirectExpression(Expressions.SimpleSource2);
if (source === undefined) {
return undefined;
}
const sourceName = source?.concatTokens();
if (sourceName === undefined) {
return undefined;
}
let foundType: TypedIdentifier | undefined = undefined;
const spag = highSyntax.spaghetti.lookupPosition(source.getFirstToken().getStart(), lowFile.getFilename());
if (spag) {
foundType = spag.findVariable(source.concatTokens());
}
const concat = node.concatTokens().toUpperCase();
if (concat.includes(" GROUP BY ") || concat.startsWith("LOOP AT GROUP ")) {
return undefined;
}
const isReference = concat.includes(" REFERENCE INTO ");
const indentation = " ".repeat(node.getFirstToken().getStart().getCol() - 1);
const dataTarget = node.findDirectExpression(Expressions.LoopTarget)?.findDirectExpression(Expressions.Target)?.findDirectExpression(Expressions.InlineData);
if (dataTarget) {
const targetName = dataTarget.findDirectExpression(Expressions.TargetField)?.concatTokens() || "DOWNPORT_ERROR";
let code = `DATA ${targetName} LIKE LINE OF ${sourceName}.\n${indentation}`;
if (isReference) {
const likeName = this.uniqueName(node.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
code = `DATA ${likeName} LIKE LINE OF ${sourceName}.\n${indentation}DATA ${targetName} LIKE REF TO ${likeName}.\n${indentation}`;
}
const fix1 = EditHelper.insertAt(lowFile, node.getFirstToken().getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, dataTarget.getFirstToken().getStart(), dataTarget.getLastToken().getEnd(), targetName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, node.getFirstToken(), "Outline LOOP data target", this.getMetadata().key, this.conf.severity, fix);
}
const fsTarget = node.findDirectExpression(Expressions.LoopTarget)?.findDirectExpression(Expressions.FSTarget)?.findDirectExpression(Expressions.InlineFS);
if (fsTarget) {
const targetName = fsTarget.findDirectExpression(Expressions.TargetFieldSymbol)?.concatTokens() || "DOWNPORT_ERROR";
let type = `LIKE LINE OF ${sourceName}`;
const f = foundType?.getType();
if (f instanceof TableType && f.getRowType() instanceof AnyType) {
type = "TYPE ANY";
}
const code = `FIELD-SYMBOLS ${targetName} ${type}.\n${indentation}`;
const fix1 = EditHelper.insertAt(lowFile, node.getFirstToken().getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, fsTarget.getFirstToken().getStart(), fsTarget.getLastToken().getEnd(), targetName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, node.getFirstToken(), "Outline LOOP fs target", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
private outlineFor(forLoop: ExpressionNode, indentation: string, lowFile: ABAPFile, highSyntax: ISyntaxResult):
{body: string, end: string} {
let body = "";
let end = "";
const loopSource = forLoop.findFirstExpression(Expressions.Source)?.concatTokens();
let loopTargetFieldExpression = forLoop.findFirstExpression(Expressions.TargetField);
let loopTargetFieldName = loopTargetFieldExpression?.concatTokens();
const of = forLoop.findExpressionAfterToken("OF");
if (of !== undefined) {
loopTargetFieldExpression = of;
loopTargetFieldName = of?.concatTokens();
}
if (forLoop.findDirectExpression(Expressions.InlineLoopDefinition)?.getFirstChild()?.get() instanceof Expressions.TargetFieldSymbol) {
loopTargetFieldExpression = undefined;
loopTargetFieldName = undefined;
}
if (loopTargetFieldExpression) {
const start = loopTargetFieldExpression.getFirstToken().getStart();
const spag = highSyntax.spaghetti.lookupPosition(start, lowFile.getFilename());
if (loopTargetFieldName && spag) {
if (new SpagHelper(spag).isDuplicateName(loopTargetFieldName, start)) {
this.renameVariable(spag, loopTargetFieldName, start, lowFile, highSyntax);
}
}
}
let cond = forLoop.findDirectExpression(Expressions.ComponentCond)?.concatTokens() || "";
if (cond !== "") {
cond = " WHERE " + cond;
}
const loop = forLoop.findDirectExpression(Expressions.InlineLoopDefinition);
const indexInto = loop?.findExpressionAfterToken("INTO")?.concatTokens();
if (forLoop.findDirectTokenByText("UNTIL")
|| forLoop.findDirectTokenByText("WHILE")) {
const fieldDef = forLoop.findDirectExpression(Expressions.InlineFieldDefinition);
const field = fieldDef?.findFirstExpression(Expressions.Field)?.concatTokens();
const indexBackup = this.uniqueName(forLoop.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
body += indentation + "DATA " + field + " TYPE i.\n";
const second = fieldDef?.getChildren()[2];
if (second?.get() instanceof Expressions.Source) {
body += indentation + field + " = " + second.concatTokens() + ".\n";
}
const not = forLoop.findDirectTokenByText("UNTIL") ? " NOT" : "";
const cond = forLoop.findFirstExpression(Expressions.Cond);
body += indentation + `DATA ${indexBackup} LIKE sy-index.\n`;
body += indentation + `${indexBackup} = sy-index.\n`;
body += indentation + `WHILE${not} ${cond?.concatTokens()}.\n`;
body += indentation + ` sy-index = ${indexBackup}.\n`;
const then = forLoop.findExpressionAfterToken("THEN");
if (then) {
end += ` ${field} = ${then.concatTokens()}.\n`;
} else {
end += ` ${field} = ${field} + 1.\n`;
}
end += indentation + "ENDWHILE";
} else if (loopTargetFieldName !== undefined) {
let from = forLoop.findExpressionAfterToken("FROM")?.concatTokens();
from = from ? " FROM " + from : "";
let to = forLoop.findExpressionAfterToken("TO")?.concatTokens();
to = to ? " TO " + to : "";
let gby = "";
for (const lg of forLoop.findDirectExpressions(Expressions.LoopGroupByComponent)) {
if (gby !== "") {
gby += " ";
}
gby += lg.concatTokens();
}
if (gby !== "") {
gby = " GROUP BY ( " + gby + " )";
}
const fc = forLoop.findDirectExpression(Expressions.FieldChain);
if (fc) {
gby = " GROUP BY " + fc.concatTokens();
}
if (forLoop.findDirectTokenByText("ASCENDING")) {
gby += " ASCENDING";
}
if (forLoop.findDirectTokenByText("DESCENDING")) {
gby += " DESCENDING";
}
const groups = forLoop.findExpressionAfterToken("GROUPS");
if (groups) {
const concat = groups.concatTokens();
if (concat.startsWith("<")) {
gby += " ASSIGNING FIELD-SYMBOL(" + concat + ")";
} else {
gby += " INTO DATA(" + concat + ")";
}
}
let inGroup = "";
if (forLoop.concatTokens().toUpperCase().includes(" IN GROUP ")) {
inGroup = "-items";
}
let into = "INTO DATA";
if (loopTargetFieldName.startsWith("<")) {
into = "ASSIGNING FIELD-SYMBOL";
}
// todo, also backup sy-index / sy-tabix here?
body += indentation + `LOOP AT ${loopSource}${inGroup} ${into}(${loopTargetFieldName})${from}${to}${cond}${gby}.\n`;
if (indexInto) {
body += indentation + " DATA(" + indexInto + ") = sy-tabix.\n";
}
end = "ENDLOOP";
} else if (loopTargetFieldName === undefined) {
// todo, also backup sy-index / sy-tabix here?
const loopTargetFieldSymbol = forLoop.findFirstExpression(Expressions.TargetFieldSymbol)?.concatTokens();
body += indentation + `LOOP AT ${loopSource} ASSIGNING FIELD-SYMBOL(${loopTargetFieldSymbol})${cond}.\n`;
if (indexInto) {
body += indentation + " DATA(" + indexInto + ") = sy-tabix.\n";
}
end = "ENDLOOP";
}
const l = forLoop.findDirectExpression(Expressions.Let);
if (l) {
body += this.outlineLet(l, indentation, highSyntax, lowFile);
}
return {body, end};
}
private outlineFilter(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
for (const i of high.findAllExpressionsRecursive(Expressions.Source)) {
const firstToken = i.getFirstToken();
if (firstToken.getStr().toUpperCase() !== "FILTER") {
continue;
}
const filterBody = i.findDirectExpression(Expressions.FilterBody);
if (filterBody === undefined) {
continue;
}
const sourceName = filterBody.findDirectExpression(Expressions.Source)?.concatTokens();
if (sourceName === undefined) {
continue;
}
let type = this.findType(i, lowFile, highSyntax);
if (type === undefined) {
type = "LIKE " + sourceName;
} else {
type = "TYPE " + type;
}
const uniqueName = this.uniqueName(firstToken.getStart(), lowFile.getFilename(), highSyntax);
const loopName = this.uniqueName(firstToken.getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
let body = "";
body += `DATA ${uniqueName} ${type}.\n`;
body += `${indentation}LOOP AT ${sourceName} INTO DATA(${loopName}) ${filterBody.concatTokens().substring(sourceName.length + 1)}.\n`;
body += `${indentation} INSERT ${loopName} INTO TABLE ${uniqueName}.\n`;
body += `${indentation}ENDLOOP.\n${indentation}`;
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), body);
const fix2 = EditHelper.replaceRange(lowFile, firstToken.getStart(), i.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, firstToken, "Downport FILTER", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
private outlineSwitch(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
for (const i of high.findAllExpressionsRecursive(Expressions.Source)) {
const firstToken = i.getFirstToken();
if (firstToken.getStr().toUpperCase() !== "SWITCH") {
continue;
}
let type = this.findType(i, lowFile, highSyntax);
if (type === undefined) {
if (high.get() instanceof Statements.Move
&& high.findDirectExpression(Expressions.Source) === i
&& high.findDirectExpression(Expressions.Target)?.findDirectExpression(Expressions.TargetField) !== undefined) {
type = "LIKE " + high.findDirectExpression(Expressions.Target)?.concatTokens();
}
if (type === undefined) {
continue;
}
} else {
type = "TYPE " + type;
}
const uniqueName = this.uniqueName(firstToken.getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
let body = "";
const switchBody = i.findDirectExpression(Expressions.SwitchBody);
if (switchBody === undefined) {
continue;
}
for (const l of switchBody?.findDirectExpression(Expressions.Let)?.findDirectExpressions(Expressions.InlineFieldDefinition) || []) {
const name = l.getFirstToken().getStr();
body += indentation + `DATA(${name}) = ${switchBody.findFirstExpression(Expressions.Source)?.concatTokens()}.\n`;
}
body += `DATA ${uniqueName} ${type}.\n`;
let firstSource = false;
let inWhen = false;
for (const c of switchBody.getChildren()) {
if (c.get() instanceof Expressions.Source && firstSource === false) {
body += indentation + `CASE ${c.concatTokens()}.`;
firstSource = true;
} else if (c instanceof TokenNode && c.concatTokens().toUpperCase() === "THEN") {
inWhen = true;
body += ".\n";
} else if (c instanceof TokenNode && c.concatTokens().toUpperCase() === "WHEN") {
inWhen = false;
body += `\n${indentation} WHEN `;
} else if (c instanceof TokenNode && c.concatTokens().toUpperCase() === "OR") {
body += ` OR `;
} else if (c instanceof TokenNode && c.concatTokens().toUpperCase() === "ELSE") {
inWhen = true;
body += `\n${indentation} WHEN OTHERS.\n`;
} else if (inWhen === false) {
body += c.concatTokens();
} else {
body += indentation + " " + uniqueName + " = " + c.concatTokens() + ".";
}
}
body += "\n" + indentation + "ENDCASE.\n" + indentation;
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), body);
const fix2 = EditHelper.replaceRange(lowFile, firstToken.getStart(), i.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, firstToken, "Downport SWITCH", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
private outlineReduce(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
for (const i of high.findAllExpressionsRecursive(Expressions.Source)) {
const firstToken = i.getFirstToken();
if (firstToken.getStr().toUpperCase() !== "REDUCE") {
continue;
}
const type = this.findType(i, lowFile, highSyntax);
if (type === undefined) {
continue;
}
const uniqueName = this.uniqueName(firstToken.getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
let body = "";
const reduceBody = i.findDirectExpression(Expressions.ReduceBody);
if (reduceBody === undefined) {
continue;
}
const letNode = reduceBody.findDirectExpression(Expressions.Let);
if (letNode) {
body += this.outlineLet(letNode, indentation, highSyntax, lowFile);
}
let firstName = "";
for (const init of reduceBody.findDirectExpressions(Expressions.InlineFieldDefinition)) {
const name = init.getFirstToken().getStr();
if (firstName === "") {
firstName = name;
}
const spag = highSyntax.spaghetti.lookupPosition(init.getFirstToken().getStart(), lowFile.getFilename());
if (spag && new SpagHelper(spag).isDuplicateName(name, init.getFirstToken().getStart())) {
this.renameVariable(spag, name, init.getFirstToken().getStart(), lowFile, highSyntax);
}
const s = init.findFirstExpression(Expressions.Source)?.concatTokens();
const t = init.findFirstExpression(Expressions.TypeName)?.concatTokens();
if (s) {
if (s.toUpperCase().startsWith("VALUE #")) {
body += indentation + `DATA(${name}) = ${s.replace("#", type)}.\n`;
} else {
body += indentation + `DATA(${name}) = ${s}.\n`;
}
} else {
body += indentation + `DATA ${name} TYPE ${t}.\n`;
}
}
let end = "";
for (const forLoop of reduceBody?.findDirectExpressions(Expressions.For) || []) {
const outlineFor = this.outlineFor(forLoop, indentation, lowFile, highSyntax);
body += outlineFor.body;
end = outlineFor.end + `.\n` + end;
}
const next = reduceBody.findDirectExpression(Expressions.ReduceNext);
if (next === undefined) {
continue;
}
for (const n of next.getChildren()) {
const concat = n.concatTokens();
if (concat.toUpperCase() === "NEXT") {
continue;
} else if (n.get() instanceof Expressions.SimpleTarget) {
body += indentation + " " + concat + " ";
} else if (n.get() instanceof Expressions.Source) {
body += " " + concat + ".\n";
} else {
body += concat;
}
}
body += indentation + end;
body += indentation + `${uniqueName} = ${firstName}.\n`;
const abap = `DATA ${uniqueName} TYPE ${type}.\n` +
body +
indentation;
const reduceEnd = i.findDirectTokenByText(")");
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), abap);
const fix2 = EditHelper.replaceRange(lowFile, firstToken.getStart(), reduceEnd!.getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, firstToken, "Downport REDUCE", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
private outlineCorresponding(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
const allSources = high.findAllExpressionsRecursive(Expressions.Source);
for (const s of allSources) {
const firstToken = s.getFirstToken();
if (firstToken.getStr().toUpperCase() !== "CORRESPONDING") {
continue;
}
const correspondingBody = s.findDirectExpression(Expressions.CorrespondingBody);
if (correspondingBody?.getFirstToken().getStr().toUpperCase() === "BASE") {
continue;
}
const uniqueName = this.uniqueName(firstToken.getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
let type = this.findType(s, lowFile, highSyntax);
if (type === undefined) {
if (high.get() instanceof Statements.Move && high.findDirectExpression(Expressions.Source) === s) {
type = "LIKE " + high.findDirectExpression(Expressions.Target)?.concatTokens();
}
if (type === undefined) {
continue;
}
} else {
type = "TYPE " + type;
}
let move = indentation + `MOVE-CORRESPONDING ${correspondingBody?.concatTokens()} TO ${uniqueName}.\n`;
if (correspondingBody?.findDirectTokenByText("EXCEPT") !== undefined) {
// MOVE-CORRESPONDING has no EXCEPT, move everything and clear the excepted components afterwards
if (correspondingBody.findDirectExpression(Expressions.CorrespondingBodyMapping) !== undefined
|| !(this.findCorrespondingType(s, high, lowFile, highSyntax) instanceof StructureType)) {
continue;
}
const children = correspondingBody.getChildren();
const exceptIndex = children.findIndex(c => c instanceof TokenNode && c.getFirstToken().getStr().toUpperCase() === "EXCEPT");
const fields = correspondingBody.findDirectExpressions(Expressions.Field);
if (fields.length === 0) {
// EXCEPT *, without MAPPING nothing is moved
move = "";
} else {
const body = children.slice(0, exceptIndex).map(c => c.concatTokens()).join(" ");
move = indentation + `MOVE-CORRESPONDING ${body} TO ${uniqueName}.\n`;
for (const f of fields) {
move += indentation + `CLEAR ${uniqueName}-${f.concatTokens()}.\n`;
}
}
}
const abap = `DATA ${uniqueName} ${type}.\n` +
indentation + `CLEAR ${uniqueName}.\n` + // might be called inside a loop
move +
indentation;
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), abap);
const fix2 = EditHelper.replaceRange(lowFile, firstToken.getStart(), s.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, firstToken, "Downport CORRESPONDING", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
private outlineValue(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
const allSources = high.findAllExpressionsRecursive(Expressions.Source);
for (const s of allSources) {
const firstToken = s.getFirstToken();
if (firstToken.getStr().toUpperCase() !== "VALUE") {
continue;
}
const valueBody = s.findDirectExpression(Expressions.ValueBody);
let type = this.findType(s, lowFile, highSyntax);
if (type === undefined) {
if (high.get() instanceof Statements.Move && high.findDirectExpression(Expressions.Source) === s) {
type = "LIKE " + high.findDirectExpression(Expressions.Target)?.concatTokens();
}
if (type === undefined) {
continue;
}
} else {
type = "TYPE " + type;
}
const uniqueName = this.uniqueName(firstToken.getStart(), lowFile.getFilename(), highSyntax);
let indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
let body = "";
const base = valueBody?.findDirectExpression(Expressions.ValueBase)?.findExpressionAfterToken("BASE");
if (base) {
body += indentation + uniqueName + " = " + base.concatTokens() + ".\n";
}
let end = "";
let structureName = uniqueName;
let added = false;
let data = "";
let previous: ExpressionNode | TokenNode | undefined = undefined;
if (valueBody?.findDirectExpression(Expressions.ValueBodyLine) !== undefined) {
structureName = this.uniqueName(firstToken.getStart(), lowFile.getFilename(), highSyntax);
const extra = valueBody?.findDirectExpression(Expressions.For) ? " " : "";
data = indentation + extra + `DATA ${structureName} LIKE LINE OF ${uniqueName}.\n`;
}
// all rows are built in the same work area, a component a row leaves out must be initial,
// not what an earlier row (or an earlier pass of a surrounding loop) put there
const clearRows = valueBody !== undefined && this.valueRowsNeedClear(valueBody);
const prefix: string[] = [];
for (const a of valueBody?.getChildren() || []) {
if (a.get() instanceof Expressions.FieldAssignment) {
if (clearRows === true) {
// the shared prefix applies to every following row, re-applied after each CLEAR
prefix.push(a.concatTokens());
continue;
}
if (added === false) {
body += data;
added = true;
}
body += indentation + structureName + "-" + a.concatTokens() + ".\n";
} else if (a instanceof ExpressionNode && a.get() instanceof Expressions.For) {
const outlineFor = this.outlineFor(a, indentation, lowFile, highSyntax);
body += outlineFor.body;
end = outlineFor.end + `.\n` + end;
indentation += " ";
} else if (a instanceof ExpressionNode && a.get() instanceof Expressions.Source) {
// special handling for superflous value expression
if (valueBody?.getChildren().length === 1) {
body += indentation + uniqueName + " = " + a.concatTokens() + `.\n`;
}
} else if (a instanceof ExpressionNode && a.get() instanceof Expressions.Let) {
body += this.outlineLet(a, indentation, highSyntax, lowFile);
}
if (a instanceof ExpressionNode && a.get() instanceof Expressions.ValueBodyLine) {
let skip = false;
if (clearRows === true && this.isStructuredValueRow(a)) {
if (added === false) {
body += data;
added = true;
}
body += indentation + `CLEAR ${structureName}.\n`;
for (const p of prefix) {
body += indentation + structureName + "-" + p + ".\n";
}
}
for (const b of a?.getChildren() || []) {
if (b.get() instanceof Expressions.FieldAssignment) {
if (added === false) {
body += data;
added = true;
}
body += indentation + structureName + "-" + (b as ExpressionNode).concatTokensWithLinebreaks() + ".\n";
} else if (b.get() instanceof Expressions.Source) {
// note: it wont work with APPEND for Hashed/Sorted Tables, so use INSERT,
body += indentation + "INSERT " + b.concatTokens() + ` INTO TABLE ${uniqueName}.\n`;
skip = true;
} else if (b.get() instanceof Expressions.ValueBodyLines) {
body += indentation + "INSERT " + b.concatTokens() + ` INTO TABLE ${uniqueName}.\n`;
skip = true;
} else if (b.concatTokens() === ")") {
if (added === false && previous?.concatTokens() === "(") {
body += data;
added = true;
}
if (skip === false) {
body += indentation + `INSERT ${structureName} INTO TABLE ${uniqueName}.\n`;
}
}
previous = b;
}
}
}
if (body === "" && valueBody?.getLastChild()?.getFirstToken().getStr().toUpperCase() === "OPTIONAL") {
const fieldChain = valueBody.findFirstExpression(Expressions.FieldChain);
const rowName = this.uniqueName(firstToken.getStart(), lowFile.getFilename(), highSyntax);
let tableExpression: ExpressionNode | undefined = undefined;
let tabName = "";
let after = "";
for (const c of fieldChain?.getChildren() || []) {
if (c.get() instanceof Expressions.TableExpression && c instanceof ExpressionNode) {
tableExpression = c;
} else if (tableExpression === undefined) {
tabName += c.concatTokens();
} else {
after += c.concatTokens();
}
}
let condition: string;
if (tableExpression?.getChildren().length === 3) {
condition = "INDEX " + tableExpression?.findDirectExpression(Expressions.Source)?.concatTokens();
} else {
condition = "WITH KEY " + tableExpression?.concatTokens().replace("[ ", "").replace(" ]", "");
}
body +=
indentation + `READ TABLE ${tabName} INTO DATA(${rowName}) ${condition}.\n` +
indentation + `IF sy-subrc = 0.\n` +
indentation + ` ${uniqueName} = ${rowName}${after}.\n` +
indentation + `ENDIF.\n`;
if (type.includes("LIKE DATA(")) {
type = `LIKE LINE OF ${tabName}`;
}
}
if (end !== "") {
indentation = indentation.substring(2);
body += indentation + end;
}
const abap = `DATA ${uniqueName} ${type}.\n` +
indentation + `CLEAR ${uniqueName}.\n` + // might be called inside a loop
body +
indentation;
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), abap);
const fix2 = EditHelper.replaceRange(lowFile, firstToken.getStart(), s.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, firstToken, "Downport VALUE", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
/** a row that is built in the work area, ie. not "( source )" or "( LINES OF source )" */
private isStructuredValueRow(row: ExpressionNode): boolean {
return row.findDirectExpression(Expressions.Source) === undefined
&& row.findDirectExpression(Expressions.ValueBodyLines) === undefined;
}
/** true if a row can observe a component that an earlier row, or an earlier pass of a surrounding loop,
* left in the shared work area. Not the case if all rows assign the same components, and the shared
* prefix is not changed between rows, eg. FOR rows or "( a = 1 b = 2 ) ( a = 3 b = 4 )" */
private valueRowsNeedClear(valueBody: ExpressionNode): boolean {
let shape: string | undefined = undefined;
let rowSeen = false;
for (const c of valueBody.getChildren()) {
if (c.get() instanceof Expressions.FieldAssignment) {
if (rowSeen === true) {
return true;
}
} else if (c instanceof ExpressionNode
&& c.get() instanceof Expressions.ValueBodyLine
&& this.isStructuredValueRow(c)) {
rowSeen = true;
const current = c.findDirectExpressions(Expressions.FieldAssignment)
.map(f => f.findDirectExpression(Expressions.FieldSub)?.concatTokens().toUpperCase().replace(/\s/g, ""))
.sort()
.join(",");
if (shape !== undefined && shape !== current) {
return true;
}
shape = current;
}
}
return false;
}
private outlineLet(node: ExpressionNode, indentation: string, highSyntax: ISyntaxResult, lowFile: ABAPFile): string {
let ret = "";
for (const f of node.findDirectExpressions(Expressions.InlineFieldDefinition)) {
const c = f.getFirstChild();
if (c === undefined) {
continue;
}
const name = c.concatTokens().toLowerCase();
const spag = highSyntax.spaghetti.lookupPosition(c.getFirstToken().getStart(), lowFile.getFilename());
if (spag === undefined) {
continue;
}
if (new SpagHelper(spag).isDuplicateName(name, c.getFirstToken().getStart())) {
this.renameVariable(spag, name, c.getFirstToken().getStart(), lowFile, highSyntax);
}
const found = spag.findVariable(name);
if (found === undefined) {
const source = f.findFirstExpression(Expressions.Source);
if (source) {
ret += indentation + "DATA(" + name + `) = ${source.concatTokens()}.\n`;
}
continue;
}
const type = found.getType().getQualifiedName() ? found.getType().getQualifiedName()?.toLowerCase() : found.getType().toABAP();
ret += indentation + "DATA " + name + ` TYPE ${type}.\n`;
const source = f.findFirstExpression(Expressions.Source);
if (source) {
ret += indentation + name + ` = ${source.concatTokens()}.\n`;
}
}
return ret;
}
private renameVariable(spag: ISpaghettiScopeNode, name: string, pos: Position, lowFile: ABAPFile, highSyntax: ISyntaxResult) {
const newName = this.uniqueName(pos, lowFile.getFilename(), highSyntax);
const fix = new SpagHelper(spag).renameVariable(name, pos, lowFile, newName);
const issue = Issue.atPosition(lowFile, pos, "Rename before outline", this.getMetadata().key, this.conf.severity, fix);
throw new SkipToNextFile(issue);
}
/** the type of the value a CORRESPONDING operator returns, if it can be determined */
private findCorrespondingType(s: ExpressionNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): AbstractType | undefined {
const expr = s.findDirectExpression(Expressions.TypeNameOrInfer);
if (expr === undefined) {
return undefined;
}
const spag = highSyntax.spaghetti.lookupPosition(expr.getFirstToken().getStart(), lowFile.getFilename());
if (spag === undefined) {
return undefined;
}
if (expr.concatTokens() !== "#") {
return spag.findType(expr.concatTokens())?.getType();
}
for (const r of spag.getData().references) {
if (r.referenceType === ReferenceType.InferredType
&& r.resolved instanceof TypedIdentifier
&& r.position.getStart().equals(expr.getFirstToken().getStart())) {
return r.resolved.getType();
}
}
const target = high.findDirectExpression(Expressions.Target);
if (high.get() instanceof Statements.Move && high.findDirectExpression(Expressions.Source) === s && target !== undefined) {
return spag.findVariable(target.concatTokens())?.getType();
}
return undefined;
}
private findType(i: ExpressionNode, lowFile: ABAPFile, highSyntax: ISyntaxResult, ref = false): string | undefined {
const expr = i.findDirectExpression(Expressions.TypeNameOrInfer);
if (expr === undefined) {
return undefined;
}
const firstToken = expr.getFirstToken();
const concat = expr.concatTokens().toLowerCase();
if (concat !== "#") {
return ref ? "REF TO " + concat : concat;
}
const spag = highSyntax.spaghetti.lookupPosition(firstToken.getStart(), lowFile.getFilename());
if (spag === undefined) {
return undefined;
}
let inferred: TypedIdentifier | undefined = undefined;
for (const r of spag?.getData().references || []) {
if (r.referenceType === ReferenceType.InferredType
&& r.resolved
&& r.position.getStart().equals(firstToken.getStart())
&& r.resolved instanceof TypedIdentifier
&& r.extra?.foundQualified === true) {
inferred = r.resolved;
break;
}
}
if (inferred === undefined) {
return undefined;
}
if (inferred.getType() instanceof ObjectReferenceType) {
return inferred.getType().toABAP();
} else {
return inferred.getType().getQualifiedName()?.toLowerCase();
}
}
private outlineFS(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)
|| (high.get() instanceof Statements.Loop)) {
return undefined;
}
for (const i of high.findAllExpressionsRecursive(Expressions.InlineFS)) {
const nameToken = i.findDirectExpression(Expressions.TargetFieldSymbol)?.getFirstToken();
if (nameToken === undefined) {
continue;
}
const name = nameToken.getStr();
let type: string;
if (high.concatTokens().toUpperCase().startsWith("APPEND INITIAL LINE TO ")) {
type = "LIKE LINE OF " + high.findFirstExpression(Expressions.Target)?.concatTokens();
} else {
const spag = highSyntax.spaghetti.lookupPosition(nameToken.getStart(), lowFile.getFilename());
if (spag === undefined) {
continue;
}
const found = spag.findVariable(name);
if (found === undefined) {
continue;
} else if (found.getType() instanceof VoidType) {
return Issue.atToken(lowFile, i.getFirstToken(), "Error outlining voided type", this.getMetadata().key, this.conf.severity);
}
type = "TYPE ";
type += found.getType().getQualifiedName() ? found.getType().getQualifiedName()!.toLowerCase() : found.getType().toABAP();
}
const code = `FIELD-SYMBOLS ${name} ${type}.\n` +
" ".repeat(high.getFirstToken().getStart().getCol() - 1);
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, i.getFirstToken().getStart(), i.getLastToken().getEnd(), name);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, i.getFirstToken(), "Outline FIELD-SYMBOL", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
/** READ TABLE [REFERENCE] INTO DATA( ) where the row type is void, no TYPE can be written, use LIKE LINE OF like LOOP does */
private outlineReadTableVoidTarget(node: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(node.get() instanceof Statements.ReadTable)) {
return undefined;
}
if (this.lowReg.getConfig().isOpenABAP()) {
return undefined;
}
const source = node.findDirectExpression(Expressions.SimpleSource2);
const target = node.findDirectExpression(Expressions.ReadTableTarget);
const inline = target?.findDirectExpression(Expressions.Target)?.findDirectExpression(Expressions.InlineData);
if (source === undefined || target === undefined || inline === undefined) {
return undefined;
}
const nameToken = inline.findDirectExpression(Expressions.TargetField)?.getFirstToken();
if (nameToken === undefined) {
return undefined;
}
const name = nameToken.getStr();
const spag = highSyntax.spaghetti.lookupPosition(nameToken.getStart(), lowFile.getFilename());
const found = spag?.findVariable(name);
const table = spag?.findVariable(source.concatTokens());
const isReference = target.findDirectTokenByText("REFERENCE") !== undefined;
if (isReference === true && !(table?.getType() instanceof VoidType)) {
return undefined;
} else if (isReference === false
&& (!(found?.getType() instanceof VoidType) || found.getType().getQualifiedName() !== undefined)) {
return undefined;
}
const indentation = " ".repeat(node.getFirstToken().getStart().getCol() - 1);
let code = `DATA ${name} LIKE LINE OF ${source.concatTokens()}.\n${indentation}`;
if (isReference === true) {
const likeName = this.uniqueName(node.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
code = `DATA ${likeName} LIKE LINE OF ${source.concatTokens()}.\n${indentation}DATA ${name} LIKE REF TO ${likeName}.\n${indentation}`;
}
const fix1 = EditHelper.insertAt(lowFile, node.getFirstToken().getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, inline.getFirstToken().getStart(), inline.getLastToken().getEnd(), name);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, inline.getFirstToken(), "Outline DATA", this.getMetadata().key, this.conf.severity, fix);
}
private outlineData(node: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
// hmm, no guard here, as DATA(SDF) is valid in 702
if (this.lowReg.getConfig().isOpenABAP()) {
return undefined;
}
for (const i of node.findAllExpressionsRecursive(Expressions.InlineData)) {
const nameToken = i.findDirectExpression(Expressions.TargetField)?.getFirstToken();
if (nameToken === undefined) {
continue;
}
const name = nameToken.getStr();
const spag = highSyntax.spaghetti.lookupPosition(nameToken.getStart(), lowFile.getFilename());
if (spag === undefined) {
continue;
}
const found = spag.findVariable(name);
if (found === undefined) {
continue;
} else if (found.getType() instanceof VoidType && found.getType().getQualifiedName() === undefined) {
continue;
} else if (found.getType() instanceof StructureType && found.getType().getQualifiedName() === undefined) {
continue;
}
let type = found.getType().getQualifiedName()
? found.getType().getQualifiedName()?.toLowerCase()
: found.getType().toABAP();
if (found.getType() instanceof ObjectReferenceType) {
type = found.getType().toABAP();
}
if (type === "") {
continue;
}
const code = `DATA ${name} TYPE ${type}.\n` +
" ".repeat(node.getFirstToken().getStart().getCol() - 1);
const fix1 = EditHelper.insertAt(lowFile, node.getFirstToken().getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, i.getFirstToken().getStart(), i.getLastToken().getEnd(), name);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, i.getFirstToken(), "Outline DATA", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
private outlineCond(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
for (const i of high.findAllExpressionsRecursive(Expressions.Source)) {
if (i.getFirstToken().getStr().toUpperCase() !== "COND") {
continue;
}
const body = i.findDirectExpression(Expressions.CondBody);
if (body === undefined) {
continue;
}
const uniqueName = this.uniqueName(i.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
let type = this.findType(i, lowFile, highSyntax);
if (type === undefined) {
if (high.get() instanceof Statements.Move
&& high.findDirectExpression(Expressions.Source) === i
&& high.findDirectExpression(Expressions.Target)?.findDirectExpression(Expressions.TargetField) !== undefined) {
type = "LIKE " + high.findDirectExpression(Expressions.Target)?.concatTokens();
}
if (type === undefined) {
continue;
}
} else {
type = "TYPE " + type;
}
const indent = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
const bodyCode = this.buildCondBody(body, uniqueName, indent, lowFile, highSyntax);
const last = i.findDirectTokenByText(")")!;
const abap = `DATA ${uniqueName} ${type}.\n` + bodyCode;
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), abap);
const fix2 = EditHelper.replaceRange(lowFile, i.getFirstToken().getStart(), last.getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, i.getFirstToken(), "Downport COND", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
private buildCondBody(body: ExpressionNode, uniqueName: string, indent: string, lowFile: ABAPFile, highSyntax: ISyntaxResult) {
let code = "";
let first = true;
let addElse = true;
for (const c of body.getChildren()) {
if (c instanceof TokenNode) {
switch (c.getFirstToken().getStr().toUpperCase()) {
case "WHEN":
if (first === true) {
code += indent + "IF ";
first = false;
} else {
code += indent + "ELSEIF ";
}
break;
case "THEN":
code += ".\n";
break;
case "ELSE":
code += indent + "ELSE.\n";
addElse = false;
break;
default:
throw "buildCondBody, unexpected token";
}
} else if (c.get() instanceof Expressions.Cond) {
code += c.concatTokens();
} else if (c.get() instanceof Expressions.Let) {
code += this.outlineLet(c, indent, highSyntax, lowFile);
} else if (c.get() instanceof Expressions.Source) {
code += indent + " " + uniqueName + " = " + c.concatTokens() + ".\n";
} else if (c.get() instanceof Expressions.Throw) {
code += indent + " " + c.concatTokens().replace(/THROW /i, "RAISE EXCEPTION NEW ") + ".\n";
} else {
throw "buildCondBody, unexpected expression, " + c.get().constructor.name;
}
}
if (addElse) {
// COND might be called inside a loop
code += indent + "ELSE.\n";
code += indent + ` CLEAR ${uniqueName}.\n`;
}
code += indent + "ENDIF.\n";
code += indent;
return code;
}
private outlineConv(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
for (const i of high.findAllExpressionsRecursive(Expressions.Source)) {
if (i.getFirstToken().getStr().toUpperCase() !== "CONV") {
continue;
}
const end = i.findDirectTokenByText(")");
if (end === undefined) {
continue;
}
const body = i.findDirectExpression(Expressions.ConvBody)?.concatTokens();
if (body === undefined) {
continue;
}
const uniqueName = this.uniqueName(i.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const indent = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
// the CONV type might just be a component of the row type, so prefer the row type
const rowOf = this.findRowTypeOf(high, i);
const type = rowOf === undefined ? this.findType(i, lowFile, highSyntax) : undefined;
if (rowOf === undefined && type === undefined) {
return Issue.atToken(lowFile, i.getFirstToken(), "Downport CONV, type of # not known", this.getMetadata().key, this.conf.severity);
}
const declaration = rowOf === undefined
? `DATA ${uniqueName} TYPE ${type}.`
: `DATA ${uniqueName} LIKE LINE OF ${rowOf}.`;
const abap = declaration + "\n" +
indent + `${uniqueName} = ${body}.\n` +
indent;
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), abap);
const fix2 = EditHelper.replaceRange(lowFile, i.getFirstToken().getStart(), end.getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, i.getFirstToken(), "Downport CONV", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
/** a( )->b( CHANGING c = d ), the object the last method is called on is outlined into a
* variable typed via the RETURNING parameter of the method before it */
private outlineChainedCallParameters(low: StatementNode, high: StatementNode, lowFile: ABAPFile,
highSyntax: ISyntaxResult): Issue | undefined {
if (!(high.get() instanceof Statements.Call)) {
return undefined;
} else if (this.lowReg.getConfig().isOpenABAP()) {
return undefined;
} else if (low.getFirstToken().getStart() instanceof VirtualPosition) {
return undefined;
}
const chain = high.findDirectExpression(Expressions.MethodCallChain);
const children = chain?.getChildren() || [];
const last = children[children.length - 1];
const arrow = children[children.length - 2];
const previous = children[children.length - 3];
if (chain === undefined
|| !(last instanceof ExpressionNode)
|| !(last.get() instanceof Expressions.MethodCall)
|| arrow?.getFirstToken().getStr() !== "->"
|| !(previous instanceof ExpressionNode)
|| !(previous.get() instanceof Expressions.MethodCall)) {
return undefined;
}
const parameters = last.findDirectExpression(Expressions.MethodCallParam)?.findDirectExpression(Expressions.MethodParameters);
if (parameters === undefined) {
return undefined;
}
// the type of the object, from the method that returns it
const methodToken = previous.findDirectExpression(Expressions.MethodName)?.getFirstToken();
if (methodToken === undefined) {
return undefined;
}
const spag = highSyntax.spaghetti.lookupPosition(methodToken.getStart(), lowFile.getFilename());
let type: string | undefined = undefined;
for (const r of spag?.getData().references || []) {
if (r.referenceType === ReferenceType.MethodReference
&& r.position.getStart().equals(methodToken.getStart())) {
const returning = (r.resolved as IMethodDefinition | undefined)?.getParameters().getReturning()?.getType();
if (returning instanceof ObjectReferenceType) {
type = returning.toABAP();
}
break;
}
}
if (type === undefined) {
return undefined;
}
const object = children.slice(0, children.length - 2).map(c => c.concatTokens()).join("");
const uniqueName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
const code = `DATA ${uniqueName} TYPE ${type}.\n` +
indentation + `${uniqueName} = ${object}.\n` +
indentation;
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, chain.getFirstToken().getStart(), previous.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, chain.getFirstToken(), "Outline object of chained call with parameter keywords",
this.getMetadata().key, this.conf.severity, fix);
}
/** if the source expression is the complete source of an INSERT or APPEND statement, then the
* outlined variable must be typed via the row type of the table, returns the table name */
private findRowTypeOf(high: StatementNode, source: ExpressionNode): string | undefined {
if (!(high.get() instanceof Statements.InsertInternal)
&& !(high.get() instanceof Statements.Append)) {
return undefined;
} else if (high.getChildren()[1] !== source) {
return undefined;
}
return high.findDirectExpression(Expressions.Target)?.concatTokens();
}
// "CAST" to "?="
private outlineCast(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
for (const i of high.findAllExpressionsRecursive(Expressions.Cast)) {
const uniqueName = this.uniqueName(i.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const type = this.findType(i, lowFile, highSyntax, true);
const body = i.findDirectExpression(Expressions.Source)?.concatTokens();
const abap = `DATA ${uniqueName} TYPE ${type}.\n` +
" ".repeat(high.getFirstToken().getStart().getCol() - 1) +
`${uniqueName} ?= ${body}.\n` +
" ".repeat(high.getFirstToken().getStart().getCol() - 1);
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), abap);
const fix2 = EditHelper.replaceRange(lowFile, i.getFirstToken().getStart(), i.getLastToken().getEnd(), uniqueName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, i.getFirstToken(), "Downport CAST", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
/** a FIELD-SYMBOLS declaration is known to the scope under its bracketed spelling, so
* the collision check has to use that spelling too - otherwise a second outline in the
* same method is handed a name that is already taken and the result does not compile */
private uniqueName(position: Position, filename: string, highSyntax: ISyntaxResult, fieldSymbol = false): string {
const decorate = (name: string) => fieldSymbol === true ? `<${name}>` : name;
const spag = highSyntax.spaghetti.lookupPosition(position, filename);
if (spag === undefined) {
const name = "temprr" + this.counter;
this.counter++;
return decorate(name);
}
let postfix = "";
if (spag.getIdentifier().stype === ScopeType.ClassDefinition) {
// try making sure this name is not used in subclasses
const hash = crypto.createHash("sha1").update(spag.getIdentifier().sname).digest("hex");
postfix = "_" + hash.substring(0, 10);
}
while (true) {
const name = decorate("temp" + this.counter + postfix);
const exists = this.existsRecursive(spag, name);
this.counter++;
if (exists === false) {
return name;
}
}
}
// todo, optimize, the findVariable() and findType() does a lot of redundant checks
private existsRecursive(spag: ISpaghettiScopeNode, name: string): boolean {
const existsDirect = spag.findVariable(name) || spag.findType(name);
if (existsDirect) {
return true;
}
for (const child of spag.getChildren()) {
if (child.findVariable(name) || child.findType(name) || this.existsRecursive(child, name)) {
return true;
}
}
return false;
}
/** WITH/WITHOUT AUTHORITY-CHECK on CALL TRANSACTION requires v740sp02, so the statement is
* Unknown in the low version, note that only WITHOUT is handled here */
private stripCallTransactionAuthorityCheck(high: StatementNode, lowFile: ABAPFile): Issue | undefined {
if (!(high.get() instanceof Statements.CallTransaction)) {
return undefined;
} else if (this.lowReg.getConfig().isOpenABAP()) {
// open-abap supports the addition
return undefined;
}
const tokens = high.getTokens();
// the lexer splits "AUTHORITY-CHECK" into three tokens: AUTHORITY, -, CHECK
for (let i = 1; i < tokens.length - 3; i++) {
if (tokens[i].getStr().toUpperCase() === "WITHOUT"
&& tokens[i + 1].getStr().toUpperCase() === "AUTHORITY"
&& tokens[i + 2].getStr() === "-"
&& tokens[i + 3].getStr().toUpperCase() === "CHECK") {
// also remove the preceding space so no double space is left behind
const fix = EditHelper.deleteRange(lowFile, tokens[i - 1].getEnd(), tokens[i + 3].getEnd());
const message = "Remove WITHOUT AUTHORITY-CHECK from CALL TRANSACTION";
return Issue.atToken(lowFile, tokens[i], message, this.getMetadata().key, this.conf.severity, fix);
}
}
return undefined;
}
private replaceXsdBool(node: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (this.lowReg.getConfig().isOpenABAP()) {
return undefined;
}
const spag = highSyntax.spaghetti.lookupPosition(node.getFirstToken().getStart(), lowFile.getFilename());
for (const r of spag?.getData().references || []) {
if (r.referenceType === ReferenceType.BuiltinMethodReference
&& r.position.getName().toUpperCase() === "XSDBOOL") {
const token = r.position.getToken();
let source: ExpressionNode | undefined = undefined;
for (const s of node.findAllExpressionsRecursive(Expressions.Source)) {
if (s.getFirstToken().getStart().equals(token.getStart())) {
source = s;
break;
}
}
const children = source?.getChildren();
if (source === undefined || children?.length !== 4) {
continue;
}
// make sure to convert to the correct type, RTTI might be used on the result of XSDBOOL
const code = "CONV xsdboolean( boolc( " + children[2].concatTokens() + " ) )";
const fix = EditHelper.replaceRange(lowFile, source.getFirstToken().getStart(), source.getLastToken().getEnd(), code);
return Issue.atToken(lowFile, token, "Use BOOLC", this.getMetadata().key, this.conf.severity, fix);
}
}
return undefined;
}
private findMethodCallExpression(node: StatementNode, token: AbstractToken) {
for (const m of node.findAllExpressions(Expressions.MethodCall)) {
if (m.findDirectExpression(Expressions.MethodName)?.getFirstToken().getStart().equals(token.getStart())) {
return m;
}
}
return undefined;
}
private replaceMethodConditional(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
for (const c of high.findAllExpressionsRecursive(Expressions.Compare)) {
const chain = c.findDirectExpression(Expressions.MethodCallChain);
if (chain === undefined) {
continue;
}
const concat = chain.concatTokens().toUpperCase();
if (concat.startsWith("LINE_EXISTS( ") || concat.startsWith("LINE_INDEX( ")) {
// these are handled separately
continue;
}
let predicate = false;
const spag = highSyntax.spaghetti.lookupPosition(high.getFirstToken().getStart(), lowFile.getFilename());
for (const r of spag?.getData().references || []) {
if (r.referenceType === ReferenceType.BuiltinMethodReference &&
BuiltIn.isPredicate(chain.getFirstToken().getStr().toUpperCase())) {
predicate = true;
break;
}
}
const end = chain.getLastToken().getEnd();
let fix = EditHelper.insertAt(lowFile, end, " IS NOT INITIAL");
if (predicate === true) {
fix = EditHelper.insertAt(lowFile, end, " ) = abap_true");
const fix1 = EditHelper.insertAt(lowFile, chain.getFirstToken().getStart(), "boolc( ");
fix = EditHelper.merge(fix, fix1);
}
return Issue.atToken(lowFile, chain.getFirstToken(), "Downport method conditional", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
private getReference(node: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(node.get() instanceof Statements.GetReference)) {
return undefined;
}
const inline = node.findDirectExpression(Expressions.Target)?.findDirectExpression(Expressions.InlineData);
if (inline === undefined) {
return undefined;
}
const targetName = inline.findDirectExpression(Expressions.TargetField)?.concatTokens();
const sourceName = node.findDirectExpression(Expressions.Source)?.concatTokens();
if (targetName === undefined || sourceName === undefined) {
return undefined;
}
const code = `DATA ${targetName} ${this.refTypeOf(sourceName, node, lowFile, highSyntax)}.\n`;
const fix1 = EditHelper.insertAt(lowFile, node.getFirstToken().getStart(), code);
const fix2 = EditHelper.replaceRange(lowFile, inline.getFirstToken().getStart(), inline.getLastToken().getEnd(), targetName);
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, inline.getFirstToken(), "Downport, outline DATA ref", this.getMetadata().key, this.conf.severity, fix);
}
private replaceContains(node: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
const spag = highSyntax.spaghetti.lookupPosition(node.getFirstToken().getStart(), lowFile.getFilename());
// only downport if its an single method call condition
let found = false;
for (const c of node.findAllExpressionsRecursive(Expressions.Compare)) {
found = c.findDirectExpression(Expressions.MethodCallChain) !== undefined;
if (found === true) {
break;
}
}
if (found === false) {
return undefined;
}
for (const r of spag?.getData().references || []) {
if (r.referenceType !== ReferenceType.BuiltinMethodReference) {
continue;
}
const func = r.position.getName().toUpperCase();
if (func === "CONTAINS") {
const token = r.position.getToken();
const expression = this.findMethodCallExpression(node, token);
if (expression === undefined) {
continue;
}
const sList = expression.findAllExpressions(Expressions.Source).map(e => e.concatTokens());
if (sList.length !== 2) {
continue;
}
const code = sList[0] + " CS " + sList[1];
const start = expression.getFirstToken().getStart();
const end = expression.getLastToken().getEnd();
const fix = EditHelper.replaceRange(lowFile, start, end, code);
return Issue.atToken(lowFile, token, "Downport contains()", this.getMetadata().key, this.conf.severity, fix);
}
}
return undefined;
}
private replaceLineFunctions(node: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult, highFile: ABAPFile): Issue | undefined {
if (this.lowReg.getConfig().isOpenABAP()) {
return undefined;
}
const spag = highSyntax.spaghetti.lookupPosition(node.getFirstToken().getStart(), lowFile.getFilename());
for (const r of spag?.getData().references || []) {
if (r.referenceType !== ReferenceType.BuiltinMethodReference) {
continue;
}
const func = r.position.getName().toUpperCase();
if (func === "LINE_EXISTS" || func === "LINE_INDEX") {
const token = r.position.getToken();
const expression = this.findMethodCallExpression(node, token);
if (expression === undefined) {
continue;
}
let condition = "";
for (const c of expression?.findFirstExpression(Expressions.TableExpression)?.getChildren() || []) {
if (c.getFirstToken().getStr() === "[" || c.getFirstToken().getStr() === "]") {
continue;
} else if (c.get() instanceof Expressions.ComponentChainSimple && condition === "") {
condition = "WITH KEY ";
} else if (c.get() instanceof Expressions.Source && condition === "") {
condition = "INDEX ";
}
condition += c.concatTokens() + " ";
}
const tableName = expression.findFirstExpression(Expressions.Source)?.concatTokens().split("[")[0];
const uniqueName = this.uniqueName(node.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(node.getFirstToken().getStart().getCol() - 1);
const sy = func === "LINE_EXISTS" ? "sy-subrc" : "sy-tabix";
let insertAt: Position | undefined = node.getFirstToken().getStart();
if (node.get() instanceof ElseIf) {
// assumption: no side effects in IF conditions, except the READ itself, see below
insertAt = this.findStartOfIf(node, highFile);
if (insertAt === undefined) {
continue;
}
}
// the READ sets sy-subrc and sy-tabix, which the built-in function does not,
// keep the values for the code that reads them after the inserted READ
const keep: {field: string, name: string}[] = [];
const reads = this.readSyFields(insertAt, highFile);
for (const field of ["sy-subrc", "sy-tabix"]) {
if (reads.has(field)) {
keep.push({field, name: this.uniqueName(node.getFirstToken().getStart(), lowFile.getFilename(), highSyntax)});
}
}
const code = `DATA ${uniqueName} LIKE sy-subrc.\n` +
keep.map(k => indentation + `DATA ${k.name} LIKE ${k.field}.\n`).join("") +
keep.map(k => indentation + `${k.name} = ${k.field}.\n`).join("") +
indentation + `READ TABLE ${tableName} ${condition}TRANSPORTING NO FIELDS.\n` +
indentation + uniqueName + ` = ${sy}.\n` +
keep.map(k => indentation + `${k.field} = ${k.name}.\n`).join("") +
indentation ;
const fix1 = EditHelper.insertAt(lowFile, insertAt, code);
const start = expression.getFirstToken().getStart();
const end = expression.getLastToken().getEnd();
const fix2 = EditHelper.replaceRange(lowFile, start, end, uniqueName + (func === "LINE_EXISTS" ? " = 0" : ""));
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, token, "Replace line function", this.getMetadata().key, this.conf.severity, fix);
}
}
return undefined;
}
/** IS [NOT] INSTANCE OF is 750, outline it as a cast in a TRY before the statement,
* the cast of an initial reference succeeds, while IS INSTANCE OF is false, hence the IS BOUND */
private replaceInstanceOf(low: StatementNode, high: StatementNode, lowFile: ABAPFile,
highSyntax: ISyntaxResult, highFile: ABAPFile): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
} else if (!(high.get() instanceof Statements.If)
&& !(high.get() instanceof Statements.ElseIf)
&& !(high.get() instanceof Statements.Check)) {
// the condition of eg. WHILE is evaluated more than once
return undefined;
}
for (const c of high.findAllExpressionsRecursive(Expressions.Compare)) {
const className = c.findDirectExpression(Expressions.ClassName);
const source = c.findDirectExpression(Expressions.Source);
if (className === undefined || source === undefined) {
continue;
}
const children = c.getChildren();
const operator = children.slice(children.indexOf(source) + 1).map(n => n.concatTokens().toUpperCase()).join(" ");
const negated = operator.startsWith("IS NOT INSTANCE OF");
let insertAt: Position | undefined = high.getFirstToken().getStart();
if (high.get() instanceof Statements.ElseIf) {
// assumption: no side effects in IF conditions
insertAt = this.findStartOfIf(high, highFile);
if (insertAt === undefined) {
return undefined;
}
}
const castName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const boolName = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const indentation = " ".repeat(insertAt.getCol() - 1);
const code = `DATA ${castName} TYPE REF TO ${className.concatTokens()}.
${indentation}DATA ${boolName} TYPE abap_bool.
${indentation}TRY.
${indentation} ${castName} ?= ${source.concatTokens()}.
${indentation} ${boolName} = boolc( ${castName} IS BOUND ).
${indentation} CATCH cx_sy_move_cast_error.
${indentation} ${boolName} = abap_false.
${indentation}ENDTRY.
${indentation}`;
const fix1 = EditHelper.insertAt(lowFile, insertAt, code);
const fix2 = EditHelper.replaceRange(lowFile, source.getFirstToken().getStart(), className.getLastToken().getEnd(),
boolName + (negated ? " = abap_false" : " = abap_true"));
const fix = EditHelper.merge(fix2, fix1);
return Issue.atToken(lowFile, source.getFirstToken(), "Downport IS INSTANCE OF", this.getMetadata().key, this.conf.severity, fix);
}
return undefined;
}
/** sy-subrc and sy-tabix, when read from the position on, in the procedure around it or the file outside of one;
* inside a loop from the start of the outermost loop, as the next pass reads what this one left */
private readSyFields(position: Position, highFile: ABAPFile): Set<string> {
const structure = highFile.getStructure();
const contains = (s: StructureNode) => !position.isBefore(s.getFirstToken().getStart())
&& !position.isAfter(s.getLastToken().getStart());
let scope: StructureNode | undefined = undefined;
for (const s of [Structures.Method, Structures.Form, Structures.FunctionModule]) {
for (const p of structure?.findAllStructuresRecursive(s) || []) {
if (contains(p)) {
scope = p;
}
}
}
scope = scope || structure;
let from = position;
for (const s of [Structures.Loop, Structures.Do, Structures.While, Structures.Select]) {
for (const l of scope?.findAllStructuresRecursive(s) || []) {
if (contains(l) && l.getFirstToken().getStart().isBefore(from)) {
from = l.getFirstToken().getStart();
}
}
}
const ret = new Set<string>();
for (const s of scope?.findAllStatementNodes() || []) {
if (s.getLastToken().getStart().isBefore(from)) {
continue;
}
const tokens = s.getTokens();
for (let i = 0; i < tokens.length - 2; i++) {
if (tokens[i].getStr().toUpperCase() === "SY" && tokens[i + 1].getStr() === "-") {
const field = "sy-" + tokens[i + 2].getStr().toLowerCase();
if (field === "sy-subrc" || field === "sy-tabix") {
ret.add(field);
}
}
}
}
return ret;
}
private findStartOfIf(node: StatementNode, highFile: ABAPFile): Position | undefined {
const structure = highFile.getStructure();
for (const c of structure?.findAllStructuresRecursive(Structures.If) || []) {
for (const ei of c.findDirectStructures(Structures.ElseIf)) {
if (ei.getFirstStatement() === node) {
return c.getFirstToken().getStart();
}
}
}
return undefined;
}
private newToCreateObject(low: StatementNode, high: StatementNode, lowFile: ABAPFile, highSyntax: ISyntaxResult): Issue | undefined {
if (!(low.get() instanceof Unknown)) {
return undefined;
}
const source = high.findDirectExpression(Expressions.Source);
let fix: IEdit | undefined = undefined;
if (high.get() instanceof Statements.Move
&& source
&& source.getFirstToken().getStr().toUpperCase() === "NEW") {
const target = high.findDirectExpression(Expressions.Target);
const found = source?.findFirstExpression(Expressions.NewObject);
// must be at top level of the source for quickfix to work(todo: handle more scenarios)
if (target
&& found
&& source.concatTokens() === found.concatTokens()
&& target.findDirectExpression(Expressions.InlineData) === undefined) {
const abap = this.newDataReference(high, target, found, lowFile, highSyntax)
?? this.newParameters(found, target.concatTokens(), highSyntax, lowFile);
if (abap !== undefined) {
fix = EditHelper.replaceRange(lowFile, high.getFirstToken().getStart(), high.getLastToken().getEnd(), abap);
}
}
}
if (fix === undefined) {
const found = high.findFirstExpression(Expressions.NewObject);
if (found === undefined) {
return undefined;
}
const name = this.uniqueName(found.getFirstToken().getStart(), lowFile.getFilename(), highSyntax);
const abap = this.newParameters(found, name, highSyntax, lowFile);
if (abap === undefined) {
return undefined;
}
const type = this.findType(found, lowFile, highSyntax);
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
const data = `DATA ${name} TYPE REF TO ${type}.\n` +
indentation + abap + "\n" +
indentation;
if (found.getFirstToken().getStart().equals(high.getFirstToken().getStart())
&& found.getLastToken().getEnd().equals(high.getLastToken().getStart())) {
// full statement = standalone NEW expression
fix = EditHelper.replaceRange(lowFile, high.getFirstToken().getStart(), high.getLastToken().getEnd(), abap);
} else {
const fix1 = EditHelper.insertAt(lowFile, high.getFirstToken().getStart(), data);
const fix2 = EditHelper.replaceRange(lowFile, found.getFirstToken().getStart(), found.getLastToken().getEnd(), name);
fix = EditHelper.merge(fix2, fix1);
}
}
if (fix) {
return Issue.atToken(lowFile, high.getFirstToken(), "Use CREATE OBJECT instead of NEW", this.getMetadata().key, this.conf.severity, fix);
} else {
return undefined;
}
}
/** NEW into a data reference creates data, CREATE OBJECT cannot: "target = NEW #|type( [value] )"
* with a target typed REF TO a data type becomes CREATE DATA plus the assignment of the value */
private newDataReference(high: StatementNode, target: ExpressionNode, found: ExpressionNode,
lowFile: ABAPFile, highSyntax: ISyntaxResult): string | undefined {
const children = found.getChildren();
const value = found.findDirectExpression(Expressions.Source);
// NEW, the type, "(", optionally one value, ")"
if (children.length !== 4 + (value ? 1 : 0)) {
return undefined;
}
const name = target.concatTokens();
const typeExpr = found.findDirectExpression(Expressions.TypeNameOrInfer);
const typeName = typeExpr?.concatTokens();
const spag = highSyntax.spaghetti.lookupPosition(high.getFirstToken().getStart(), lowFile.getFilename());
let type: AbstractType | undefined = undefined;
if (typeName === "#") {
// the type of the target, as inferred by the syntax check
const typeToken = typeExpr!.getFirstToken();
const resolved = spag?.getData().references.find(r => r.referenceType === ReferenceType.InferredType
&& r.position.getStart().equals(typeToken.getStart()))?.resolved;
type = resolved instanceof TypedIdentifier ? resolved.getType() : undefined;
} else if (target.getChildren().length === 1 && target.getFirstChild()?.get() instanceof Expressions.TargetField) {
type = spag?.findVariable(name)?.getType();
}
if (!(type instanceof DataReference)) {
return undefined;
}
const indentation = " ".repeat(high.getFirstToken().getStart().getCol() - 1);
let abap = `CREATE DATA ${name}` + (typeName === "#" ? "" : ` TYPE ${typeName}`) + ".";
if (value === undefined) {
return abap;
} else if (type.getType().isGeneric() === false) {
return abap + `\n${indentation}${name}->* = ${value.concatTokens()}.`;
}
// a generic reference cannot be dereferenced as a target below v756
const fs = this.uniqueName(high.getFirstToken().getStart(), lowFile.getFilename(), highSyntax, true);
abap = `FIELD-SYMBOLS ${fs} TYPE any.\n` +
indentation + abap + "\n" +
indentation + `ASSIGN ${name}->* TO ${fs}.\n` +
indentation + `${fs} = ${value.concatTokens()}.`;
return abap;
}
private newParameters(found: ExpressionNode, name: string, highSyntax: ISyntaxResult, lowFile: ABAPFile): string | undefined {
const typeToken = found.findDirectExpression(Expressions.TypeNameOrInfer)?.getFirstToken();
let extra = typeToken?.getStr() === "#" ? "" : " TYPE " + typeToken?.getStr();
const parameters = found.findFirstExpression(Expressions.ParameterListS);
if (parameters) {
extra = parameters ? extra + " EXPORTING " + parameters.concatTokens() : extra;
} else if (typeToken) {
const source = found.findDirectExpression(Expressions.Source)?.concatTokens();
if (source) {
// find the default parameter name for the constructor
const spag = highSyntax.spaghetti.lookupPosition(typeToken?.getStart(), lowFile.getFilename());
let cdef: IClassDefinition | TypedIdentifier | undefined = undefined;
for (const r of spag?.getData().references || []) {
if ((r.referenceType === ReferenceType.InferredType
|| r.referenceType === ReferenceType.ObjectOrientedReference)
&& r.resolved && r.position.getStart().equals(typeToken.getStart())) {
cdef = r.resolved as IClassDefinition | TypedIdentifier;
}
}
if (cdef instanceof TypedIdentifier) {
const foo = cdef.getType();
if (foo instanceof ObjectReferenceType) {
cdef = spag?.findClassDefinition(foo.getQualifiedName()!);
if (cdef === undefined) {
const cglobal = this.highReg.getObject("CLAS", foo.getQualifiedName()!) as Class | undefined;
cdef = cglobal?.getDefinition();
}
} else {
return undefined; // not an object, CREATE OBJECT does not apply
}
}
if (cdef && cdef.getMethodDefinitions === undefined) {
return undefined; // something wrong
}
const importing = this.findConstructor(cdef, spag)?.getParameters().getDefaultImporting();
if (importing) {
extra += " EXPORTING " + importing + " = " + source;
} else if (spag === undefined) {
extra += " SpagUndefined ERROR";
} else if (cdef === undefined) {
extra += " ClassDefinitionNotFound ERROR";
} else {
extra += " SomeError ERROR";
}
}
}
const abap = `CREATE OBJECT ${name}${extra}.`;
return abap;
}
private findConstructor(cdef: IClassDefinition | undefined, spag: ISpaghettiScopeNode | undefined): any {
let def = cdef;
while (def !== undefined) {
const method = def?.getMethodDefinitions().getByName("CONSTRUCTOR");
if (method) {
return method;
}
const name = def.getSuperClass();
if (name) {
def = spag?.findClassDefinition(name);
} else {
return undefined;
}
}
}
}
|