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import {Comment, Unknown} from "../abap/2_statements/statements/_statement";
import * as Statements from "../abap/2_statements/statements";
import * as Structures from "../abap/3_structures/structures";
import {ABAPRule} from "./_abap_rule";
import {BasicRuleConfig} from "./_basic_rule_config";
import {IRuleMetadata, RuleTag} from "./_irule";
import {ABAPFile} from "../abap/abap_file";
import {EditHelper, IEdit} from "../edit_helper";
import {StructureNode, StatementNode} from "../abap/nodes";
import {Position} from "../position";
export class DefinitionsTopConf extends BasicRuleConfig {
}
// todo, use enum instead?
// const ANY = 1;
const DEFINITION = 2;
const AFTER = 3;
const IGNORE = 4;
export class DefinitionsTop extends ABAPRule {
private conf = new DefinitionsTopConf();
private mode: number;
private fixed: boolean;
private moveTo: Position | undefined;
public getMetadata(): IRuleMetadata {
return {
key: "definitions_top",
title: "Place definitions in top of routine",
shortDescription: `Checks that definitions are placed at the beginning of METHODs, FORMs and FUNCTIONs.`,
extendedInformation: `https://docs.abapopenchecks.org/checks/17/`,
tags: [RuleTag.SingleFile, RuleTag.Quickfix],
badExample: `FROM foo.
WRITE 'hello'.
DATA int TYPE i.
ENDFORM.`,
goodExample: `FROM foo.
DATA int TYPE i.
WRITE 'hello'.
ENDFORM.`,
};
}
private getMessage(): string {
return "Reorder definitions to top of routine";
}
public getConfig() {
return this.conf;
}
public setConfig(conf: DefinitionsTopConf) {
this.conf = conf;
}
public runParsed(file: ABAPFile) {
const issues: Issue[] = [];
const structure = file.getStructure();
if (structure === undefined) {
return [];
}
const containsUnknown = file.getStatements().some(s => s.get() instanceof Unknown);
if (containsUnknown === true) {
return [];
}
const routines = structure.findAllStructuresMulti([Structures.Form, Structures.Method, Structures.FunctionModule]);
for (const r of routines) {
// one fix per routine
this.fixed = false;
this.mode = DEFINITION;
this.moveTo = r.getFirstStatement()?.getLastToken().getEnd();
const found = this.walk(r, file);
if (found) {
issues.push(found);
}
}
return issues;
}
//////////////////
private walk(r: StructureNode, file: ABAPFile): Issue | undefined {
let previous: StatementNode | StructureNode | undefined = undefined;
for (const c of r.getChildren()) {
const get = c.get();
if (c instanceof StatementNode) {
if (get instanceof Comment) {
continue;
} else if (get instanceof Statements.FunctionModule) {
continue;
} else if (get instanceof Statements.Form) {
continue;
} else if (get instanceof Statements.MethodImplementation) {
continue;
}
}
if (c instanceof StructureNode
&& (get instanceof Structures.Data
|| get instanceof Structures.Types
|| get instanceof Structures.Constants
|| get instanceof Structures.Statics)) {
if (this.mode === AFTER) {
// These are chained structured statements
let fix = undefined;
if (c.getLastChild()?.getLastChild()?.getFirstToken().getStr() === "."
&& !(previous instanceof StructureNode)
&& this.moveTo) {
// this is not perfect, but will work for now
const start = c.getFirstChild()?.getFirstChild()?.getFirstToken().getStart();
const end = c.getLastChild()?.getLastChild()?.getLastToken().getEnd();
if (start && end ) {
let concat = c.concatTokens();
concat = concat.replace(/,/g, ".\n");
const fix1 = EditHelper.deleteRange(file, start, end);
const fix2 = EditHelper.insertAt(file, this.moveTo, "\n" + concat);
fix = EditHelper.merge(fix1, fix2);
}
}
// no quick fixes for these, its difficult?
return Issue.atStatement(file, c.getFirstStatement()!, this.getMessage(), this.getMetadata().key, this.conf.severity, fix);
} else {
this.moveTo = c.getLastToken().getEnd();
}
} else if (c instanceof StatementNode
&& (get instanceof Statements.Data
|| get instanceof Statements.Type
|| get instanceof Statements.Constant
|| (get instanceof Statements.Move && c.concatTokens().toUpperCase().startsWith("DATA("))
|| get instanceof Statements.Static
|| get instanceof Statements.FieldSymbol)) {
if (this.mode === AFTER) {
// only one fix per routine, as it reorders a lot
if (!(get instanceof Statements.Move && c.concatTokens().toUpperCase().startsWith("DATA("))) {
let fix = undefined;
if (this.fixed === false && this.moveTo) {
fix = this.buildFix(file, c, this.moveTo);
this.fixed = true;
}
return Issue.atStatement(file, c, this.getMessage(), this.getMetadata().key, this.conf.severity, fix);
}
} else {
this.moveTo = c.getLastToken().getEnd();
}
} else if (c instanceof StructureNode && get instanceof Structures.Define) {
this.mode = IGNORE;
return undefined;
} else if (c instanceof StatementNode && get instanceof Unknown) {
this.mode = IGNORE;
return undefined;
} else if (c instanceof StatementNode && this.mode === DEFINITION) {
this.mode = AFTER;
} else if (c instanceof StructureNode) {
const found = this.walk(c, file);
if (found) {
return found;
}
}
previous = c;
}
return undefined;
}
private buildFix(file: ABAPFile, statement: StatementNode, at: Position): IEdit {
let concat = statement.concatTokens();
concat = concat.replace(/,$/, ".");
const fix1 = EditHelper.deleteStatement(file, statement);
const indentation = " ".repeat(statement.getFirstToken().getCol() - 1);
const fix2 = EditHelper.insertAt(file, at, "\n" + indentation + concat);
return EditHelper.merge(fix1, fix2);
}
} |