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13x 95x 95x 95x 95x 95x 95x 95x 95x 95x 1x 1x 67x 95x 95x 65x 65x 95x 8446x 9x 9x 9x 9x 9x 9x 9x 2x 2x 2x 2x 2x 9x 9x 9x 9x 9x 9x 9x 9x 9x 9x 9x 9x 9x 9x 9x 121x 112x 112x 112x 64x 64x 1x 1x 1x 64x 64x 63x 63x 63x 63x 63x 63x 63x 63x 63x 64x 112x 48x 48x 112x 112x 51x 51x 112x 112x 141x 141x 8446x 70x 70x 1x 70x 69x 70x 1x 1x 68x 68x 139x 139x 139x 1x 1x 29x 29x 29x 29x 29x 29x 29x 14x 14x 1x 1x 1x 1x 13x 14x 2x 2x 2x 2x 11x 29x 15x 15x 15x 1x 1x 1x 1x 1x 1x 1x 15x 14x 14x 7x 2x 7x 1x 5x 4x 4x 4x 4x 4x 7x 7x 14x 14x 14x 14x 7x 7x 7x 7x 29x 1x 1x 14x 14x 14x 1x 1x 14x 9x 9x 4x 4x 14x 14x 1x 1x 19x 16x 19x 1x 1x 4x 1x 1x 1x 4x 1x 1x 2x 2x 1x 1x 3114x 3114x 3114x 3114x 3112x 495x 495x 2617x 3112x 2383x 2383x 2383x 2383x 2383x 3112x 236x 236x 3114x 66x 3114x 151x 170x 19x 3114x 1x 1x 18x 3114x 18x 18x 18x 1x 1x 299x 299x 4x 4x 295x 299x 4x 4x 291x 291x 299x 264x 264x 2x 2x 2x 6x 2x 6x 4x 4x 6x 2x 264x 262x 262x 264x 27x 27x 27x 27x 27x 27x 2x 2x 2x 2x 25x 25x 1x 1x 7302x 7302x 65x 65x 7237x 7302x 47x 47x 47x 8x 8x 47x 7229x 7229x 7229x 1x 1x 1x 45x 45x 19x 19x 26x 45x 45x 1x 1x 1x 92x 92x 526x 526x 526x 526x 526x 492x 492x 526x 526x 58x 58x 1x 1x 7303x 7303x 7303x 7303x 1x 1x 7302x 7303x 142x 142x 142x 142x 142x 7160x 7303x 6574x 39x 39x 6535x 6535x 586x 586x 7303x 580x 580x 6x 6x 7303x 2x 2x 4x 4x 4x 4x 4x 4x 1x 1x 754x 1x 1x 753x 754x 2x 754x 1x 1x 753x 753x 753x 1x 1x | import {TypedIdentifier, IdentifierMeta} from "../types/_typed_identifier";
import {StatementNode, ExpressionNode} from "../nodes";
import * as Expressions from "../2_statements/expressions";
import * as Statements from "../2_statements/statements";
import * as Types from "../types/basic";
import {AbstractType} from "../types/basic/_abstract_type";
import {ScopeType} from "./_scope_type";
import {ObjectOriented} from "./_object_oriented";
import {ClassConstant} from "../types/class_constant";
import {ClassAttribute} from "../types/class_attribute";
import {Identifier as TokenIdentifier} from "../1_lexer/tokens/identifier";
import {ReferenceType} from "./_reference";
import {CharacterType, ITableKey, ObjectReferenceType, StructureType, TableAccessType, TableType, VoidType} from "../types/basic";
import {FieldChain} from "./expressions/field_chain";
import {ClassDefinition, InterfaceDefinition} from "../types";
import {Field, FieldSub, TypeTableKey} from "../2_statements/expressions";
import {BuiltIn} from "./_builtin";
import {Position} from "../../position";
import {SyntaxInput, syntaxIssue} from "./_syntax_input";
import {IObjectAndToken} from "../../_iddic_references";
export class BasicTypes {
private readonly input: SyntaxInput;
public constructor(input: SyntaxInput) {
this.input = input;
}
public lookupQualifiedName(name: string | undefined): TypedIdentifier | undefined {
// argh, todo, rewrite this entire method, more argh, again argh
if (name === undefined) {
return undefined;
}
const found = this.input.scope.findType(name);
if (found) {
return found;
}
if (name.includes("=>")) {
const split = name.split("=>");
const ooName = split[0];
const typeName = split[1];
const oo = this.input.scope.findObjectDefinition(ooName);
if (oo) {
if (typeName.includes("-")) {
const split = typeName.split("-");
const subTypeName = split[0];
const fieldName = split[1];
const stru = oo.getTypeDefinitions().getByName(subTypeName);
const struType = stru?.getType();
if (stru && struType instanceof StructureType) {
let f = struType.getComponentByName(fieldName);
if (split[2] && f instanceof StructureType) {
f = f.getComponentByName(split[2]);
}
if (f) {
return new TypedIdentifier(stru.getToken(), stru.getFilename(), f);
}
}
} else {
const f = oo.getTypeDefinitions().getByName(typeName);
if (f) {
return f;
}
}
}
} else if (name.includes("-")) {
const split = name.split("-");
const typeName = split[0];
const fieldName = split[1];
const type = this.input.scope.findType(typeName);
if (type) {
const stru = type.getType();
if (stru instanceof StructureType) {
let f = stru.getComponentByName(fieldName);
if (split[2] && f instanceof StructureType) {
f = f.getComponentByName(split[2]);
}
if (f) {
return new TypedIdentifier(type.getToken(), type.getFilename(), f);
}
}
}
}
const lookup = this.input.scope.getDDIC().lookupNoVoid(name);
const id = lookup?.object?.getIdentifier();
if (id && lookup?.type) {
return new TypedIdentifier(id.getToken(), id.getFilename(), lookup.type);
}
const builtin = this.input.scope.getDDIC().lookupBuiltinType(name);
if (builtin) {
return new TypedIdentifier(new TokenIdentifier(new Position(1, 1), name), BuiltIn.filename, builtin);
}
const type = this.input.scope.findTypePoolType(name);
if (type) {
return type;
}
return undefined;
}
public resolveLikeName(node: ExpressionNode | StatementNode | undefined, headerLogic = true): AbstractType | undefined {
if (node === undefined) {
return undefined;
}
let chain = node.findFirstExpression(Expressions.FieldChain);
if (chain === undefined) {
chain = node.findFirstExpression(Expressions.TypeName);
}
if (chain === undefined) {
chain = node.findFirstExpression(Expressions.FieldSub);
}
if (chain === undefined) {
chain = node.findFirstExpression(Expressions.SimpleFieldChain);
}
if (chain === undefined) {
chain = node.findFirstExpression(Expressions.SimpleFieldChain2);
}
if (chain === undefined) {
throw new Error("resolveLikeName, chain undefined");
}
const fullName = chain.concatTokens();
let children = [...chain.getChildren()];
if (children.length === 0) {
return new Types.UnknownType("Type error, could not resolve \"" + fullName + "\", resolveLikeName1");
}
let type: AbstractType | undefined;
if (children[1] && (children[1].getFirstToken().getStr() === "=>" || children[1].getFirstToken().getStr() === "->")) {
type = FieldChain.runSyntax(chain, this.input, ReferenceType.TypeReference);
} else {
const name = children.shift()!.getFirstToken().getStr();
let found = this.input.scope.findVariable(name);
const full = this.input.scope.findVariable(fullName); // workaround for eg "sy-repid"
if (full) {
children = [];
found = full;
}
type = found?.getType();
if (found === undefined) {
found = this.input.scope.findExtraLikeType(name);
type = found?.getType();
}
if (found) {
this.input.scope.addReference(chain?.getFirstToken(), found, ReferenceType.TypeReference, this.input.filename);
}
if (type === undefined) {
const found = this.input.scope.getDDIC().lookupNoVoid(name);
if (found !== undefined) {
const using: IObjectAndToken = {filename: this.input.filename, token: chain.getFirstToken(), object: found.object};
this.input.scope.getDDICReferences().addUsing(this.input.scope.getParentObj(), using);
}
type = found?.type;
}
if (type === undefined && this.input.scope.isAnyOO() === false && this.input.scope.getDDIC().inErrorNamespace(name) === false) {
this.input.scope.addReference(chain.getChildren()[0].getFirstToken(), undefined, ReferenceType.VoidType, this.input.filename);
return Types.VoidType.get(name);
}
while (children.length > 0) {
const child = children.shift()!;
if (child.getFirstToken().getStr() === "-") {
if (type instanceof Types.VoidType) {
return type;
}
} else if (child.concatTokens() === "[]") {
if (type instanceof Types.TableType) {
type = new TableType(type.getRowType(), {withHeader: false, keyType: Types.TableKeyType.default});
}
} else if (child instanceof ExpressionNode && child.get() instanceof Expressions.FieldLength) {
const len = parseInt(child.concatTokens().replace("(", "").replace(")", ""), 10);
if (isNaN(len)) {
type = new Types.UnknownType("Type error, invalid field length");
} else {
if (type instanceof Types.DateType) {
if (len > 8) {
type = new Types.UnknownType("Type error, offset too long");
} else {
type = new Types.CharacterType(len);
}
} else if (type instanceof Types.CharacterType) {
if (len <= type.getLength()) {
type = new Types.CharacterType(len);
} else {
type = new Types.UnknownType("Type error, offset too long");
}
}
}
} else { // field name
if (type instanceof Types.TableType) {
type = type.getRowType();
}
if (type instanceof Types.StructureType) {
type = type.getComponentByName(child.getFirstToken().getStr());
if (type === undefined) {
return new Types.UnknownType("Type error, field not part of structure " + fullName);
}
} else if (!(type instanceof Types.VoidType)) {
return new Types.UnknownType("Type error, field not part of structure " + fullName);
}
}
}
if (type instanceof Types.VoidType) {
return type;
} else if (type instanceof TableType
&& type.isWithHeader()
&& headerLogic === true) {
type = type.getRowType();
} else if (type instanceof Types.TableType
&& type.isWithHeader() === true
&& type.getRowType() instanceof Types.VoidType) {
return type.getRowType();
}
}
if (!type) {
return new Types.UnknownType("Type error, could not resolve \"" + fullName + "\", resolveLikeName2");
}
return type;
}
private cloneType(type: AbstractType, qualifiedName?: string): AbstractType {
// nested types(containing "-") will inherit the qualified names if possible
// todo, this needs to be extended to all AbstractTypes instead of just CharacterType
if (type instanceof CharacterType
&& qualifiedName
&& qualifiedName.includes("-") === false) {
type = type.cloneType({qualifiedName});
}
return type;
}
public resolveTypeName(typeName: ExpressionNode | undefined,
length?: number, decimals?: number, qualifiedName?: string): AbstractType | undefined {
if (typeName === undefined) {
return undefined;
}
const chain = this.resolveTypeChain(typeName);
if (chain) {
return this.cloneType(chain, qualifiedName);
}
const chainText = typeName.concatTokens().toUpperCase();
const f = this.input.scope.getDDIC().lookupBuiltinType(chainText, length, decimals, qualifiedName);
if (f !== undefined) {
return f;
}
const typ = this.input.scope.findType(chainText);
if (typ) {
const token = typeName.getFirstToken();
if (chainText.includes("~")) {
const name = chainText.split("~")[0];
const idef = this.input.scope.findInterfaceDefinition(name);
if (idef) {
this.input.scope.addReference(token, idef, ReferenceType.ObjectOrientedReference, this.input.filename, {ooType: "INTF", ooName: name});
}
}
this.input.scope.addReference(token, typ, ReferenceType.TypeReference, this.input.filename);
return this.cloneType(typ.getType(), qualifiedName);
}
const type = this.input.scope.findTypePoolType(chainText)?.getType();
if (type) {
// this.scope.addReference(typeName.getFirstToken(), type, ReferenceType.TypeReference, this.filename);
return type;
}
const ddic = this.input.scope.getDDIC().lookup(chainText);
if (ddic) {
this.input.scope.getDDICReferences().addUsing(this.input.scope.getParentObj(),
{object: ddic.object, token: typeName.getFirstToken(), filename: this.input.filename});
if (ddic.type instanceof TypedIdentifier) {
this.input.scope.addReference(typeName.getFirstToken(), ddic.type, ReferenceType.TypeReference, this.input.filename);
} else if (ddic.type instanceof VoidType) {
this.input.scope.addReference(typeName.getFirstToken(), undefined, ReferenceType.VoidType, this.input.filename);
}
return this.cloneType(ddic.type, qualifiedName);
}
return undefined;
}
public simpleType(node: StatementNode | ExpressionNode, qualifiedNamePrefix?: string): TypedIdentifier | undefined {
let nameExpr = node.findFirstExpression(Expressions.NamespaceSimpleName);
if (nameExpr === undefined) {
nameExpr = node.findFirstExpression(Expressions.DefinitionName);
}
if (nameExpr === undefined) {
return undefined;
}
let name = nameExpr.getFirstToken();
if (nameExpr.countTokens() > 1) { // workaround for names with dashes
name = new TokenIdentifier(name.getStart(), nameExpr.concatTokens());
}
let qualifiedName: string | undefined = undefined;
if (node.get() instanceof Statements.Type) {
if (this.input.scope.isTypePool() === true) {
qualifiedName = name.getStr();
} else {
qualifiedName = (qualifiedNamePrefix || "") + name.getStr();
if (this.input.scope.getType() === ScopeType.ClassDefinition
|| this.input.scope.getType() === ScopeType.Interface) {
qualifiedName = this.input.scope.getName() + "=>" + qualifiedName;
}
}
} else if (qualifiedNamePrefix) {
qualifiedName = qualifiedNamePrefix + qualifiedName;
}
const found = this.parseType(node, qualifiedName);
if (found) {
return new TypedIdentifier(name, this.input.filename, found);
}
return undefined;
}
public parseTable(node: ExpressionNode | StatementNode, name?: string): AbstractType | undefined {
const typename = node.findFirstExpression(Expressions.TypeName) || node.findFirstExpression(Expressions.EntityAssociation);
const text = node.findFirstExpression(Expressions.TypeTable)?.concatTokens().toUpperCase();
if (text === undefined) {
return undefined;
}
let type: Types.TableAccessType | undefined = undefined;
if (text.startsWith("TYPE STANDARD TABLE ")
|| text.startsWith("TYPE TABLE ")
|| text.startsWith("LIKE TABLE ")
|| text.startsWith("LIKE STANDARD TABLE ")) {
type = TableAccessType.standard;
} else if (text.startsWith("TYPE SORTED TABLE ")
|| text.startsWith("LIKE SORTED TABLE ")) {
type = TableAccessType.sorted;
} else if (text.startsWith("TYPE HASHED TABLE ")
|| text.startsWith("LIKE HASHED TABLE ")) {
type = TableAccessType.hashed;
}
const typeTableKeys = node.findAllExpressions(TypeTableKey);
const firstKey = typeTableKeys[0];
const isNamed = firstKey?.findDirectExpression(Field) !== undefined
&& firstKey?.findDirectExpression(Field)?.concatTokens().toUpperCase() !== "PRIMARY_KEY";
const primaryKey: ITableKey = {
name: "primary_key",
type: type || TableAccessType.standard,
isUnique: isNamed ? false : firstKey?.concatTokens().toUpperCase().includes("WITH UNIQUE ") === true,
keyFields: [],
};
let start = 1;
if (isNamed === false) {
for (const k of firstKey?.findDirectExpressions(FieldSub) || []) {
primaryKey.keyFields.push(k.concatTokens().toUpperCase());
}
} else {
start = 0;
}
const secondaryKeys: ITableKey[] = [];
for (let i = start; i < typeTableKeys.length; i++) {
const row = typeTableKeys[i];
const name = row.findDirectExpression(Field)?.concatTokens();
if (name === undefined) {
continue;
}
const secondary: ITableKey = {
name: name,
type: row.findDirectTokenByText("SORTED") ? TableAccessType.sorted : TableAccessType.hashed,
isUnique: row?.concatTokens().toUpperCase().includes("WITH UNIQUE ") === true,
keyFields: [],
};
for (const k of row?.findDirectExpressions(FieldSub) || []) {
secondary.keyFields.push(k.concatTokens().toUpperCase());
}
secondaryKeys.push(secondary);
}
let keyType = Types.TableKeyType.user;
if (text.includes(" EMPTY KEY")) {
keyType = Types.TableKeyType.empty;
} else if (text.includes(" DEFAULT KEY")) {
keyType = Types.TableKeyType.default;
}
const options: Types.ITableOptions = {
withHeader: text.includes(" WITH HEADER LINE"),
keyType: keyType,
primaryKey: primaryKey,
secondary: secondaryKeys,
};
let found: AbstractType | undefined;
if (text.startsWith("TYPE TABLE OF REF TO ")
|| text.startsWith("TYPE STANDARD TABLE OF REF TO ")
|| text.startsWith("TYPE SORTED TABLE OF REF TO ")
|| text.startsWith("TYPE HASHED TABLE OF REF TO ")) {
found = this.resolveTypeRef(typename);
if (found) {
return new Types.TableType(found, options, name);
}
} else if (text.startsWith("TYPE TABLE OF ")
|| text.startsWith("TYPE STANDARD TABLE OF ")
|| text.startsWith("TYPE SORTED TABLE OF ")
|| text.startsWith("TYPE HASHED TABLE OF ")) {
found = this.resolveTypeName(typename);
if (found) {
return new Types.TableType(found, options, name);
}
} else if (text.startsWith("LIKE TABLE OF ")
|| text.startsWith("LIKE STANDARD TABLE OF ")
|| text.startsWith("LIKE SORTED TABLE OF ")
|| text.startsWith("LIKE HASHED TABLE OF ")) {
found = this.resolveLikeName(node);
if (found) {
return new Types.TableType(found, options, name);
}
} else if (text === "TYPE STANDARD TABLE"
|| text === "TYPE SORTED TABLE"
|| text === "TYPE HASHED TABLE"
|| text === "TYPE INDEX TABLE"
|| text === "TYPE ANY TABLE") {
return new Types.TableType(Types.AnyType.get(), options);
} else if (text.startsWith("TYPE RANGE OF ")) {
const sub = node.findFirstExpression(Expressions.TypeName);
found = this.resolveTypeName(sub);
if (found === undefined) {
return new Types.UnknownType("TYPE RANGE OF, could not resolve type");
}
const structure = new Types.StructureType([
{name: "sign", type: new Types.CharacterType(1)},
{name: "option", type: new Types.CharacterType(2)},
{name: "low", type: found},
{name: "high", type: found},
]);
options.primaryKey!.type = TableAccessType.standard;
return new Types.TableType(structure, options, name);
} else if (text.startsWith("LIKE RANGE OF ")) {
const sub = node.findFirstExpression(Expressions.FieldChain);
found = this.resolveLikeName(sub);
if (found === undefined) {
return new Types.UnknownType("LIKE RANGE OF, could not resolve type");
}
const structure = new Types.StructureType([
{name: "sign", type: new Types.CharacterType(1)},
{name: "option", type: new Types.CharacterType(2)},
{name: "low", type: found},
{name: "high", type: found},
], name);
options.primaryKey!.type = TableAccessType.standard;
return new Types.TableType(structure, options);
} else if (typename && this.isRAPTableFor(text)) {
return this.rapTableFor(typename.concatTokens(), options);
}
// fallback to old style syntax, OCCURS etc
return this.parseType(node, name);
}
/** type of a RAP derived table type, ie the "TABLE FOR LOCK zentity" part of a type */
public rapTableFor(entityName: string, options?: Types.ITableOptions): AbstractType {
const ddlsName = this.resolveRAPAlias(this.getRAPBaseEntityName(entityName));
if (this.input.scope.getDDIC().lookupDDLS(ddlsName)?.type) {
return new Types.TableType(VoidType.get("RAP-TODO"), options ?? {
withHeader: false,
keyType: Types.TableKeyType.user,
primaryKey: {name: "primary_key", type: TableAccessType.standard, isUnique: false, keyFields: []},
secondary: [],
});
} else if (this.isRAPDerivedEntityName(entityName)) {
return Types.VoidType.get(entityName);
} else if (this.input.scope.getDDIC().inErrorNamespace(ddlsName)) {
return new Types.UnknownType(`DDLS ${ddlsName} not found`);
}
return Types.VoidType.get(entityName);
}
public parseType(node: ExpressionNode | StatementNode, qualifiedName?: string): AbstractType | undefined {
const typeName = node.findFirstExpression(Expressions.TypeName);
let text = node.findFirstExpression(Expressions.Type)?.concatTokens().toUpperCase();
if (text === undefined) {
text = node.findFirstExpression(Expressions.TypeParam)?.concatTokens().toUpperCase();
}
if (text === undefined) {
text = node.findFirstExpression(Expressions.TypeTable)?.concatTokens().toUpperCase();
if (text?.startsWith("TYPE") === false && text?.startsWith("LIKE") === false) {
text = "TYPE";
}
}
if (text === undefined) {
text = node.findFirstExpression(Expressions.TypeStructure)?.concatTokens().toUpperCase();
}
if (text === undefined) {
text = node.findFirstExpression(Expressions.FormParamType)?.concatTokens().toUpperCase();
}
if (text === undefined
&& node.get() instanceof Statements.Parameter
&& node.findDirectTokenByText("LIKE")) {
text = "LIKE " + typeName?.concatTokens();
}
if (text === undefined) {
text = "TYPE";
}
let found: AbstractType | undefined = undefined;
if (this.isRAPTypeStructure(text)) {
return Types.VoidType.get(node.findFirstExpression(Expressions.TypeStructure)?.concatTokens());
} else if (text.startsWith("LIKE LINE OF ")) {
let name = node.findFirstExpression(Expressions.FieldChain)?.concatTokens();
let e = node.findFirstExpression(Expressions.Type);
if (e === undefined) {
e = node.findFirstExpression(Expressions.FormParamType);
}
if (e === undefined) {
e = node.findFirstExpression(Expressions.FieldChain);
}
if (e === undefined) {
// old style, eg "LIKE LINE OF tab OCCURS 0 WITH HEADER LINE", it is parsed as TypeName
e = typeName;
name = typeName?.concatTokens();
}
const type = this.resolveLikeName(e, false);
let row: AbstractType | undefined;
if (type === undefined) {
return new Types.UnknownType("Type error, could not resolve \"" + name + "\", parseType");
} else if (type instanceof Types.TableType) {
row = type.getRowType();
} else if (type instanceof Types.VoidType) {
row = type;
} else {
return new Types.UnknownType("Type error, not a table type " + name);
}
if (this.isOccurs(node)) {
return new Types.TableType(row, {
withHeader: text.includes(" WITH HEADER LINE"),
keyType: Types.TableKeyType.default}, qualifiedName);
}
return row;
} else if (text.startsWith("LIKE REF TO ")) {
const name = node.findFirstExpression(Expressions.FieldChain)?.concatTokens();
const type = this.resolveLikeName(node.findFirstExpression(Expressions.Type), false);
if (type === undefined) {
return new Types.UnknownType("Type error, could not resolve \"" + name + "\", parseType");
}
return new Types.DataReference(type, name);
} else if (text === "TYPE STANDARD TABLE"
|| text === "TYPE SORTED TABLE"
|| text === "TYPE HASHED TABLE"
|| text === "TYPE INDEX TABLE"
|| text === "TYPE ANY TABLE") {
return new Types.TableType(Types.AnyType.get(), {withHeader: node.concatTokens().toUpperCase().includes("WITH HEADER LINE"), keyType: Types.TableKeyType.user});
} else if (text.startsWith("LIKE ")) {
let sub = node.findFirstExpression(Expressions.Type);
if (sub === undefined) {
sub = node.findFirstExpression(Expressions.FormParamType);
}
if (sub === undefined) {
sub = node.findFirstExpression(Expressions.TypeParam);
}
if (sub === undefined) {
sub = node.findFirstExpression(Expressions.TypeName);
}
if (sub === undefined) {
sub = node.findFirstExpression(Expressions.FieldChain);
}
found = this.resolveLikeName(sub);
if (found && this.isOccurs(node)) {
found = new Types.TableType(found, {withHeader: text.includes("WITH HEADER LINE"), keyType: Types.TableKeyType.default}, qualifiedName);
} else if (text.endsWith(" WITH HEADER LINE") && found instanceof Types.TableType) {
found = new Types.TableType(found.getRowType(), {withHeader: true, keyType: Types.TableKeyType.default}, qualifiedName);
}
} else if (text.startsWith("TYPE LINE OF ")) {
const sub = node.findFirstExpression(Expressions.TypeName);
found = this.resolveTypeName(sub);
if (found instanceof TypedIdentifier) {
found = found.getType();
}
if (found instanceof Types.TableType) {
return found.getRowType();
} else if (found instanceof Types.VoidType) {
return found;
} else if (found instanceof Types.UnknownType) {
return new Types.UnknownType("TYPE LINE OF, unknown type, " + found.getError());
} else {
return new Types.UnknownType("TYPE LINE OF, unexpected type, " + found?.constructor.name);
}
} else if (text.startsWith("TYPE REF TO ")) {
found = this.resolveTypeRef(typeName);
} else if (text.startsWith("TYPE")) {
found = this.resolveTypeName(typeName, this.findLength(node), this.findDecimals(node), qualifiedName);
const concat = node.concatTokens().toUpperCase();
if (found && this.isOccurs(node)) {
found = new Types.TableType(found, {withHeader: concat.includes(" WITH HEADER LINE"), keyType: Types.TableKeyType.default}, qualifiedName);
} else if (found && concat.includes(" WITH HEADER LINE")) {
if (found instanceof Types.VoidType) {
found = new Types.TableType(found, {withHeader: true, keyType: Types.TableKeyType.default});
} else if (!(found instanceof Types.TableType)) {
throw new Error("WITH HEADER LINE can only be used with internal table");
} else {
found = new Types.TableType(found.getRowType(), {withHeader: true, keyType: Types.TableKeyType.default});
}
}
if (found === undefined && typeName === undefined) {
let length = 1;
const len = node.findDirectExpression(Expressions.ConstantFieldLength);
if (len) {
const int = len.findDirectExpression(Expressions.Integer);
if (int) {
length = parseInt(int.concatTokens(), 10);
}
} else if (node.get() instanceof Statements.Parameter) {
length = this.findParameterLength(node) ?? length;
}
found = new Types.CharacterType(length, {qualifiedName: qualifiedName}); // fallback
if (this.isOccurs(node)) {
found = new Types.TableType(found, {withHeader: concat.includes(" WITH HEADER LINE"), keyType: Types.TableKeyType.default}, qualifiedName);
}
}
}
if (text.includes(" WITH INDICATORS ")) {
const componentName = node.findFirstExpression(Expressions.Type)
?.findDirectExpression(Expressions.ComponentName)?.concatTokens().toUpperCase();
if (componentName === undefined) {
throw new Error("parseType, componentName expected");
}
if (found instanceof Types.StructureType) {
const newComponents = [...found.getComponents()];
newComponents.push({name: componentName, type: Types.VoidType.get("INDICATORStodo")});
found = new Types.StructureType(newComponents, qualifiedName);
}
}
return found;
}
/////////////////////
private isOccurs(node: ExpressionNode | StatementNode): boolean {
if (node.findDirectTokenByText("OCCURS")) {
return true;
} else if (node.findFirstExpression(Expressions.TypeTable)?.findDirectTokenByText("OCCURS")) {
return true;
}
return false;
}
private getRAPBaseEntityName(name: string): string {
const association = name.indexOf("\\_");
const path = name.indexOf("\\\\");
const action = name.indexOf("~");
if (association === -1 && path === -1 && action === -1) {
return name;
}
const candidates = [association, path, action].filter(i => i !== -1);
const splitAt = Math.min(...candidates);
return name.substring(0, splitAt);
}
/** inside a behavior pool the entities are referenced via the aliases defined in the BDEF */
private resolveRAPAlias(name: string): string {
return this.input.scope.findBehaviorDefinition()?.findEntityNameByAlias(name) ?? name;
}
private isRAPDerivedEntityName(name: string): boolean {
return name.includes("\\") || name.includes("~");
}
private isRAPTableFor(text: string): boolean {
return text.startsWith("TYPE TABLE FOR ");
}
private isRAPTypeStructure(text: string): boolean {
return text.startsWith("TYPE STRUCTURE FOR ")
|| text.startsWith("TYPE RESPONSE FOR ")
|| text.startsWith("TYPE REQUEST FOR ");
}
// todo, rewrite this method
private resolveTypeChain(expr: ExpressionNode): AbstractType | undefined {
const chainText = expr.concatTokens().toUpperCase();
if (chainText.includes("-")) {
// workaround for stuff like "sy-repid"
const built = this.input.scope.findType(chainText);
if (built) {
this.input.scope.addReference(expr.getFirstToken(), built, ReferenceType.TypeReference, this.input.filename);
return built.getType();
}
} else if (chainText.includes("=>") === false && chainText.includes("-") === false) {
return undefined;
}
let className: string | undefined;
let rest = chainText;
if (chainText.includes("=>")) {
const split = chainText.split("=>");
className = split[0];
rest = split[1];
} else if (chainText.includes("->")) {
const split = chainText.split("->");
className = split[0];
rest = split[1];
}
const subs = rest.split("-");
let foundType: AbstractType | undefined;
if (className && chainText.includes("=>")) {
const split = chainText.split("=>");
const className = split[0];
// the prefix might be itself
if ((this.input.scope.getType() === ScopeType.Interface
|| this.input.scope.getType() === ScopeType.ClassDefinition)
&& this.input.scope.getName().toUpperCase() === className.toUpperCase()) {
const foundId = this.input.scope.findType(subs[0]);
foundType = foundId?.getType();
if (foundType === undefined) {
return new Types.UnknownType("Could not resolve type " + chainText);
}
const token = expr.getChildren()[2]?.getFirstToken();
if (token) {
this.input.scope.addReference(token, foundId, ReferenceType.TypeReference, this.input.filename);
}
} else {
// lookup in local and global scope
const obj = this.input.scope.findObjectDefinition(className);
if (obj === undefined && this.input.scope.getDDIC().inErrorNamespace(className) === false) {
this.input.scope.addReference(
expr.getFirstToken(), undefined,
ReferenceType.ObjectOrientedVoidReference, this.input.filename, {ooName: className.toUpperCase()});
return Types.VoidType.get(className);
} else if (obj === undefined) {
return new Types.UnknownType("Could not resolve top " + className + ", resolveTypeChain");
}
const type = obj instanceof ClassDefinition ? "CLAS" : "INTF";
this.input.scope.addReference(
expr.getFirstToken(), obj, ReferenceType.ObjectOrientedReference, this.input.filename,
{ooType: type, ooName: className});
const byName = new ObjectOriented(this.input.scope).searchTypeName(obj, subs[0]);
foundType = byName?.getType();
if (byName === undefined || foundType === undefined) {
return new Types.UnknownType(subs[0] + " not found in class or interface");
}
const token = expr.getChildren()[2]?.getFirstToken();
if (token) {
this.input.scope.addReference(token, byName, ReferenceType.TypeReference, this.input.filename);
}
}
} else if (className && chainText.includes("->")) {
const varVar = this.input.scope.findVariable(className);
const foo = varVar?.getType();
if (foo instanceof ObjectReferenceType) {
const typeName = subs[0];
let id = foo.getIdentifier();
if (!(id instanceof ClassDefinition || id instanceof InterfaceDefinition)) {
const found = this.input.scope.findObjectDefinition(foo.getIdentifierName());
if (found) {
id = found;
} else {
return new Types.UnknownType(foo.getIdentifierName() + " not found in scope");
}
}
if (id instanceof ClassDefinition || id instanceof InterfaceDefinition) {
const type = id instanceof ClassDefinition ? "CLAS" : "INTF";
this.input.scope.addReference(
expr.getFirstToken(), id, ReferenceType.ObjectOrientedReference, this.input.filename,
{ooType: type, ooName: id.getName()});
const byName = new ObjectOriented(this.input.scope).searchTypeName(id, typeName);
foundType = byName?.getType();
if (byName === undefined || foundType === undefined) {
return new Types.UnknownType(typeName + " not found in class or interface");
}
const token = expr.getChildren()[2]?.getFirstToken();
if (token) {
this.input.scope.addReference(token, byName, ReferenceType.TypeReference, this.input.filename);
}
} else {
return new Types.UnknownType("Not an object reference, " + className + ", " + id.constructor.name);
}
} else if (foo === undefined) {
return new Types.UnknownType(className + " not found in scope");
} else {
return new Types.UnknownType("Not an object reference, " + className + ", " + foo.constructor.name);
}
} else {
const found = this.input.scope.findType(subs[0]);
foundType = found?.getType();
if (foundType === undefined) {
const typePoolType = this.input.scope.findTypePoolType(subs[0])?.getType();
if (typePoolType) {
// this.scope.addReference(typeName.getFirstToken(), typePoolType, ReferenceType.TypeReference, this.filename);
foundType = typePoolType;
}
if (foundType === undefined) {
const f = this.input.scope.getDDIC().lookupTableOrView(subs[0]);
this.input.scope.getDDICReferences().addUsing(
this.input.scope.getParentObj(),
{object: f.object, filename: this.input.filename, token: expr.getFirstToken()});
if (f.type instanceof TypedIdentifier) {
foundType = f.type.getType();
} else {
foundType = f.type;
}
}
} else {
this.input.scope.addReference(expr.getFirstToken(), found, ReferenceType.TypeReference, this.input.filename);
}
if (foundType === undefined && this.input.scope.getDDIC().inErrorNamespace(subs[0]) === false) {
this.input.scope.addReference(expr.getFirstToken(), undefined, ReferenceType.VoidType, this.input.filename);
return Types.VoidType.get(subs[0]);
} else if (foundType instanceof Types.VoidType) {
this.input.scope.addReference(expr.getFirstToken(), undefined, ReferenceType.VoidType, this.input.filename);
return foundType;
} else if (foundType === undefined) {
return new Types.UnknownType("Unknown type " + subs[0]);
}
}
subs.shift();
while (subs.length > 0) {
if (foundType instanceof Types.UnknownType
|| foundType instanceof Types.VoidType) {
return foundType;
} else if (!(foundType instanceof Types.StructureType)) {
return new Types.UnknownType("Not a structured type");
}
foundType = foundType.getComponentByName(subs[0]);
if (foundType === undefined) {
return new Types.UnknownType(`Field "${subs[0]}" not found in structure`);
}
subs.shift();
}
return foundType;
}
private resolveConstantValue(expr: ExpressionNode): string | undefined {
// todo: rewrite this method
if (!(expr.get() instanceof Expressions.SimpleFieldChain)) {
throw new Error("resolveConstantValue");
}
const firstNode = expr.getFirstChild()!;
const firstToken = firstNode.getFirstToken();
const firstName = firstToken.getStr();
if (firstNode.get() instanceof Expressions.Field) {
const found = this.input.scope.findVariable(firstName);
if (found === undefined) {
const message = `"${firstName}" not found, findTop`;
this.input.issues.push(syntaxIssue(this.input, firstToken, message));
return undefined;
}
this.input.scope.addReference(firstToken, found, ReferenceType.DataReadReference, this.input.filename);
if (this.isConstant(found) === false) {
const message = `VALUE, ${expr.concatTokens().toLowerCase()} is not a constant`;
this.input.issues.push(syntaxIssue(this.input, firstToken, message));
return undefined;
}
return this.constantValue(expr, found.getValue());
} else if (firstNode.get() instanceof Expressions.ClassName
&& firstName.toLowerCase() === this.input.scope.getName().toLowerCase()
&& (this.input.scope.getType() === ScopeType.Interface
|| this.input.scope.getType() === ScopeType.ClassDefinition)) {
const children = expr.getChildren();
const token = children[2]?.getFirstToken();
const found = this.input.scope.findVariable(token.getStr());
if (found === undefined) {
const message = `"${token.getStr()}" not found, findTop`;
this.input.issues.push(syntaxIssue(this.input, token, message));
return undefined;
}
this.input.scope.addReference(firstToken, found, ReferenceType.DataReadReference, this.input.filename);
if (this.isConstant(found) === false) {
const message = `VALUE, ${expr.concatTokens().toLowerCase()} is not a constant`;
this.input.issues.push(syntaxIssue(this.input, token, message));
return undefined;
}
return this.constantValue(expr, found.getValue());
} else if (firstNode.get() instanceof Expressions.ClassName) {
const obj = this.input.scope.findObjectDefinition(firstName);
if (obj === undefined) {
if (this.input.scope.existsObject(firstName) !== undefined) {
return undefined;
} else if (this.input.scope.getDDIC().inErrorNamespace(firstName) === true) {
throw new Error("resolveConstantValue, not found: " + firstName);
} else {
this.input.scope.addReference(
firstNode.getFirstToken(), undefined,
ReferenceType.ObjectOrientedVoidReference, this.input.filename, {ooName: firstName.toUpperCase()});
return undefined;
}
}
const children = expr.getChildren();
const token = children[2]?.getFirstToken();
const attr = token.getStr();
const c = new ObjectOriented(this.input.scope).searchConstantName(obj, attr);
if (c instanceof ClassConstant) {
this.input.scope.addReference(firstToken, obj, ReferenceType.ObjectOrientedReference, this.input.filename, {ooName: obj.getName()});
this.input.scope.addReference(token, c, ReferenceType.DataReadReference, this.input.filename);
return this.constantValue(expr, c.getValue());
}
const helper = new ObjectOriented(this.input.scope);
const attribute = helper.searchAttributeName(obj, attr);
if (attribute) {
this.input.scope.addReference(firstToken, obj, ReferenceType.ObjectOrientedReference, this.input.filename, {ooName: obj.getName()});
this.input.scope.addReference(token, attribute, ReferenceType.DataReadReference, this.input.filename);
const message = `VALUE, ${expr.concatTokens().toLowerCase()} is not a constant`;
this.input.issues.push(syntaxIssue(this.input, token, message));
return undefined;
}
const message = `Attribute or constant "${attr}" not found in "${obj.getName()}"`;
this.input.issues.push(syntaxIssue(this.input, token, message));
return undefined;
} else {
throw new Error("resolveConstantValue, unexpected structure");
}
}
private isConstant(identifier: TypedIdentifier): boolean {
if (identifier instanceof ClassAttribute) {
return false;
}
const meta = identifier.getMeta();
if (meta.includes(IdentifierMeta.ReadOnly) === false) {
return false;
}
if (meta.includes(IdentifierMeta.Static)) {
return true;
}
// Built-in constants and built-in system fields share ReadOnly/BuiltIn metadata.
// Only the constants have a value; system fields such as SY-INDEX do not.
return meta.includes(IdentifierMeta.BuiltIn) && identifier.getValue() !== undefined;
}
private constantValue(expr: ExpressionNode, value: string | {[index: string]: string} | undefined): string | undefined {
if (typeof value === "string") {
return value;
} else if (typeof value === "object" && value !== null) {
let current: string | {[index: string]: string} | undefined = value;
for (const child of expr.getChildren().slice(1)) {
if (child instanceof ExpressionNode && child.get() instanceof Expressions.ComponentName) {
if (typeof current !== "object" || current === null) {
return undefined;
}
current = current[child.getFirstToken().getStr()];
}
}
return typeof current === "string" ? current : undefined;
}
return undefined;
}
private resolveTypeRef(chain: ExpressionNode | undefined): AbstractType | undefined {
if (chain === undefined) {
return undefined;
}
const name = chain.getFirstToken().getStr();
if (chain.getChildren().length === 1) {
if (name.toUpperCase() === "OBJECT") {
return new Types.GenericObjectReferenceType();
}
const search = this.input.scope.existsObject(name);
if (search?.id) {
this.input.scope.addReference(
chain.getFirstToken(), search.id, ReferenceType.ObjectOrientedReference, this.input.filename,
{ooType: search.ooType, ooName: name});
return new Types.ObjectReferenceType(search.id, {qualifiedName: name, RTTIName: search.RTTIName});
}
}
const found = this.resolveTypeName(chain);
if (found && found instanceof Types.VoidType) {
return found;
} else if (found && !(found instanceof Types.UnknownType)) {
return new Types.DataReference(found);
} else if (chain.concatTokens().toUpperCase() === "DATA") {
return new Types.DataReference(new Types.DataType());
}
if (this.input.scope.isBadiDef(name) === true) {
return Types.VoidType.get(name);
}
if (this.input.scope.getDDIC()?.inErrorNamespace(name) === false) {
// this.scope.addReference(chain.getFirstToken(), undefined, ReferenceType.VoidType, this.filename);
return Types.VoidType.get(name);
}
return new Types.UnknownType("REF, unable to resolve " + name);
}
public findValue(node: StatementNode | ExpressionNode): string | undefined {
const val = node.findFirstExpression(Expressions.Value);
if (val === undefined) {
throw new Error("VALUE missing in expression");
}
if (val.concatTokens().toUpperCase() === "VALUE IS INITIAL") {
return undefined;
}
const constant = val.findFirstExpression(Expressions.Constant);
if (constant) {
const conc = val.findFirstExpression(Expressions.ConcatenatedConstant);
if (conc) {
const first = conc.getFirstToken().getStr().substring(0, 1);
let result = "";
for (const token of conc.getAllTokens()) {
if (token.getStr() === "&") {
continue;
} else {
result += token.getStr().substring(1, token.getStr().length - 1);
}
}
return first + result + first;
} else {
return constant.concatTokens();
}
}
const chain = val.findFirstExpression(Expressions.SimpleFieldChain);
if (chain) {
// todo, hardcoded for now, should be a generic check that the chain is a constant
const concat = chain.concatTokens().toUpperCase();
if (concat === "SY-DATUM" || concat === "SY-UZEIT") {
const message = "VALUE, " + concat.toLowerCase() + " is not a constant";
this.input.issues.push(syntaxIssue(this.input, chain.getFirstToken(), message));
return undefined;
}
return this.resolveConstantValue(chain);
}
throw new Error("findValue, unexpected");
}
private findDecimals(node: StatementNode | ExpressionNode): number | undefined {
const dec = node.findDirectExpression(Expressions.Decimals)?.findDirectExpression(Expressions.Integer)?.concatTokens();
if (dec) {
return parseInt(dec, 10);
}
if (node.get() instanceof Statements.Parameter) {
// PARAMETERS spells it seq("DECIMALS", Source) instead of the Decimals expression
const source = this.findParameterAddition(node, "DECIMALS")?.concatTokens();
if (source && /^\d+$/.test(source)) {
return parseInt(source, 10);
}
}
return undefined;
}
// PARAMETERS spells it seq("LENGTH", Constant) instead of the Length expression
private findParameterLength(node: StatementNode | ExpressionNode): number | undefined {
const constant = this.findParameterAddition(node, "LENGTH");
if (constant === undefined) {
return undefined;
}
const length = this.parseInt(constant.concatTokens());
return length === undefined || isNaN(length) ? undefined : length;
}
// finds the expression following a direct keyword token, "VISIBLE LENGTH" is not "LENGTH"
private findParameterAddition(node: StatementNode | ExpressionNode, keyword: string): ExpressionNode | undefined {
const children = node.getChildren();
for (let i = 0; i < children.length - 1; i++) {
const child = children[i];
const next = children[i + 1];
if (child instanceof ExpressionNode
|| child.getFirstToken().getStr().toUpperCase() !== keyword
|| children[i - 1]?.getFirstToken().getStr().toUpperCase() === "VISIBLE") {
continue;
}
return next instanceof ExpressionNode ? next : undefined;
}
return undefined;
}
private findLength(node: StatementNode | ExpressionNode): number | undefined {
const val = node.findFirstExpression(Expressions.Length);
const flen = node.findFirstExpression(Expressions.ConstantFieldLength);
if (val && flen) {
throw new Error("Only specify length once");
}
if (flen) {
const cintExpr = flen.findFirstExpression(Expressions.Integer);
if (cintExpr) {
return this.parseInt(cintExpr.concatTokens());
}
const cchain = flen.findFirstExpression(Expressions.SimpleFieldChain);
if (cchain) {
const val = this.resolveConstantValue(cchain);
return this.parseInt(val);
}
}
if (val === undefined) {
if (node.get() instanceof Statements.Parameter) {
return this.findParameterLength(node);
}
return undefined;
}
const intExpr = val.findFirstExpression(Expressions.Integer);
if (intExpr) {
return this.parseInt(intExpr.concatTokens());
}
const strExpr = val.findFirstExpression(Expressions.ConstantString);
if (strExpr) {
return this.parseInt(strExpr.concatTokens());
}
const chain = val.findFirstExpression(Expressions.SimpleFieldChain);
if (chain) {
const val = this.resolveConstantValue(chain);
return this.parseInt(val);
}
throw new Error("Unexpected, findLength");
}
private parseInt(text: string | undefined): number | undefined {
if (text === undefined) {
return undefined;
}
if (text.startsWith("'")) {
text = text.split("'")[1];
} else if (text.startsWith("`")) {
text = text.split("`")[1];
}
return parseInt(text, 10);
}
}
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