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parser.ts
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9965 lines (8950 loc) · 529 KB
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namespace ts {
const enum SignatureFlags {
None = 0,
Yield = 1 << 0,
Await = 1 << 1,
Type = 1 << 2,
IgnoreMissingOpenBrace = 1 << 4,
JSDoc = 1 << 5,
}
const enum SpeculationKind {
TryParse,
Lookahead,
Reparse
}
let NodeConstructor: new (kind: SyntaxKind, pos?: number, end?: number) => Node;
let TokenConstructor: new (kind: SyntaxKind, pos?: number, end?: number) => Node;
let IdentifierConstructor: new (kind: SyntaxKind, pos?: number, end?: number) => Node;
let PrivateIdentifierConstructor: new (kind: SyntaxKind, pos?: number, end?: number) => Node;
let SourceFileConstructor: new (kind: SyntaxKind, pos?: number, end?: number) => Node;
/**
* NOTE: You should not use this, it is only exported to support `createNode` in `~/src/deprecatedCompat/deprecations.ts`.
*/
/* @internal */
export const parseBaseNodeFactory: BaseNodeFactory = {
createBaseSourceFileNode: kind => new (SourceFileConstructor || (SourceFileConstructor = objectAllocator.getSourceFileConstructor()))(kind, -1, -1),
createBaseIdentifierNode: kind => new (IdentifierConstructor || (IdentifierConstructor = objectAllocator.getIdentifierConstructor()))(kind, -1, -1),
createBasePrivateIdentifierNode: kind => new (PrivateIdentifierConstructor || (PrivateIdentifierConstructor = objectAllocator.getPrivateIdentifierConstructor()))(kind, -1, -1),
createBaseTokenNode: kind => new (TokenConstructor || (TokenConstructor = objectAllocator.getTokenConstructor()))(kind, -1, -1),
createBaseNode: kind => new (NodeConstructor || (NodeConstructor = objectAllocator.getNodeConstructor()))(kind, -1, -1),
};
/* @internal */
export const parseNodeFactory = createNodeFactory(NodeFactoryFlags.NoParenthesizerRules, parseBaseNodeFactory);
function visitNode<T>(cbNode: (node: Node) => T, node: Node | undefined): T | undefined {
return node && cbNode(node);
}
function visitNodes<T>(cbNode: (node: Node) => T, cbNodes: ((node: NodeArray<Node>) => T | undefined) | undefined, nodes: NodeArray<Node> | undefined): T | undefined {
if (nodes) {
if (cbNodes) {
return cbNodes(nodes);
}
for (const node of nodes) {
const result = cbNode(node);
if (result) {
return result;
}
}
}
}
/*@internal*/
export function isJSDocLikeText(text: string, start: number) {
return text.charCodeAt(start + 1) === CharacterCodes.asterisk &&
text.charCodeAt(start + 2) === CharacterCodes.asterisk &&
text.charCodeAt(start + 3) !== CharacterCodes.slash;
}
/*@internal*/
export function isFileProbablyExternalModule(sourceFile: SourceFile) {
// Try to use the first top-level import/export when available, then
// fall back to looking for an 'import.meta' somewhere in the tree if necessary.
return forEach(sourceFile.statements, isAnExternalModuleIndicatorNode) ||
getImportMetaIfNecessary(sourceFile);
}
function isAnExternalModuleIndicatorNode(node: Node) {
return canHaveModifiers(node) && hasModifierOfKind(node, SyntaxKind.ExportKeyword)
|| isImportEqualsDeclaration(node) && isExternalModuleReference(node.moduleReference)
|| isImportDeclaration(node)
|| isExportAssignment(node)
|| isExportDeclaration(node) ? node : undefined;
}
function getImportMetaIfNecessary(sourceFile: SourceFile) {
return sourceFile.flags & NodeFlags.PossiblyContainsImportMeta ?
walkTreeForImportMeta(sourceFile) :
undefined;
}
function walkTreeForImportMeta(node: Node): Node | undefined {
return isImportMeta(node) ? node : forEachChild(node, walkTreeForImportMeta);
}
/** Do not use hasModifier inside the parser; it relies on parent pointers. Use this instead. */
function hasModifierOfKind(node: HasModifiers, kind: SyntaxKind) {
return some(node.modifiers, m => m.kind === kind);
}
function isImportMeta(node: Node): boolean {
return isMetaProperty(node) && node.keywordToken === SyntaxKind.ImportKeyword && node.name.escapedText === "meta";
}
type ForEachChildFunction<TNode> = <T>(node: TNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined) => T | undefined;
type ForEachChildTable = { [TNode in ForEachChildNodes as TNode["kind"]]: ForEachChildFunction<TNode> };
const forEachChildTable: ForEachChildTable = {
[SyntaxKind.QualifiedName]: function forEachChildInQualifiedName<T>(node: QualifiedName, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.left) ||
visitNode(cbNode, node.right);
},
[SyntaxKind.TypeParameter]: function forEachChildInTypeParameter<T>(node: TypeParameterDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.constraint) ||
visitNode(cbNode, node.default) ||
visitNode(cbNode, node.expression);
},
[SyntaxKind.ShorthandPropertyAssignment]: function forEachChildInShorthandPropertyAssignment<T>(node: ShorthandPropertyAssignment, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.exclamationToken) ||
visitNode(cbNode, node.equalsToken) ||
visitNode(cbNode, node.objectAssignmentInitializer);
},
[SyntaxKind.SpreadAssignment]: function forEachChildInSpreadAssignment<T>(node: SpreadAssignment, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.Parameter]: function forEachChildInParameter<T>(node: ParameterDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.dotDotDotToken) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.initializer);
},
[SyntaxKind.PropertyDeclaration]: function forEachChildInPropertyDeclaration<T>(node: PropertyDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.exclamationToken) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.initializer);
},
[SyntaxKind.PropertySignature]: function forEachChildInPropertySignature<T>(node: PropertySignature, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.initializer);
},
[SyntaxKind.PropertyAssignment]: function forEachChildInPropertyAssignment<T>(node: PropertyAssignment, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.exclamationToken) ||
visitNode(cbNode, node.initializer);
},
[SyntaxKind.VariableDeclaration]: function forEachChildInVariableDeclaration<T>(node: VariableDeclaration, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name) ||
visitNode(cbNode, node.exclamationToken) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.initializer);
},
[SyntaxKind.BindingElement]: function forEachChildInBindingElement<T>(node: BindingElement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.dotDotDotToken) ||
visitNode(cbNode, node.propertyName) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.initializer);
},
[SyntaxKind.IndexSignature]: function forEachChildInIndexSignature<T>(node: IndexSignatureDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.ConstructorType]: function forEachChildInConstructorType<T>(node: ConstructorTypeNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.FunctionType]: function forEachChildInFunctionType<T>(node: FunctionTypeNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.CallSignature]: forEachChildInCallOrConstructSignature,
[SyntaxKind.ConstructSignature]: forEachChildInCallOrConstructSignature,
[SyntaxKind.MethodDeclaration]: function forEachChildInMethodDeclaration<T>(node: MethodDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.asteriskToken) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.exclamationToken) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.MethodSignature]: function forEachChildInMethodSignature<T>(node: MethodSignature, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.questionToken) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.Constructor]: function forEachChildInConstructor<T>(node: ConstructorDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.GetAccessor]: function forEachChildInGetAccessor<T>(node: GetAccessorDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.SetAccessor]: function forEachChildInSetAccessor<T>(node: SetAccessorDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.FunctionDeclaration]: function forEachChildInFunctionDeclaration<T>(node: FunctionDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.asteriskToken) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.FunctionExpression]: function forEachChildInFunctionExpression<T>(node: FunctionExpression, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.asteriskToken) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.ArrowFunction]: function forEachChildInArrowFunction<T>(node: ArrowFunction, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type) ||
visitNode(cbNode, node.equalsGreaterThanToken) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.ClassStaticBlockDeclaration]: function forEachChildInClassStaticBlockDeclaration<T>(node: ClassStaticBlockDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.TypeReference]: function forEachChildInTypeReference<T>(node: TypeReferenceNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.typeName) ||
visitNodes(cbNode, cbNodes, node.typeArguments);
},
[SyntaxKind.TypePredicate]: function forEachChildInTypePredicate<T>(node: TypePredicateNode, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.assertsModifier) ||
visitNode(cbNode, node.parameterName) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.TypeQuery]: function forEachChildInTypeQuery<T>(node: TypeQueryNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.exprName) ||
visitNodes(cbNode, cbNodes, node.typeArguments);
},
[SyntaxKind.TypeLiteral]: function forEachChildInTypeLiteral<T>(node: TypeLiteralNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.members);
},
[SyntaxKind.ArrayType]: function forEachChildInArrayType<T>(node: ArrayTypeNode, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.elementType);
},
[SyntaxKind.TupleType]: function forEachChildInTupleType<T>(node: TupleTypeNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.elements);
},
[SyntaxKind.UnionType]: forEachChildInUnionOrIntersectionType,
[SyntaxKind.IntersectionType]: forEachChildInUnionOrIntersectionType,
[SyntaxKind.ConditionalType]: function forEachChildInConditionalType<T>(node: ConditionalTypeNode, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.checkType) ||
visitNode(cbNode, node.extendsType) ||
visitNode(cbNode, node.trueType) ||
visitNode(cbNode, node.falseType);
},
[SyntaxKind.InferType]: function forEachChildInInferType<T>(node: InferTypeNode, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.typeParameter);
},
[SyntaxKind.ImportType]: function forEachChildInImportType<T>(node: ImportTypeNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.argument) ||
visitNode(cbNode, node.assertions) ||
visitNode(cbNode, node.qualifier) ||
visitNodes(cbNode, cbNodes, node.typeArguments);
},
[SyntaxKind.ImportTypeAssertionContainer]: function forEachChildInImportTypeAssertionContainer<T>(node: ImportTypeAssertionContainer, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.assertClause);
},
[SyntaxKind.ParenthesizedType]: forEachChildInParenthesizedTypeOrTypeOperator,
[SyntaxKind.TypeOperator]: forEachChildInParenthesizedTypeOrTypeOperator,
[SyntaxKind.IndexedAccessType]: function forEachChildInIndexedAccessType<T>(node: IndexedAccessTypeNode, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.objectType) ||
visitNode(cbNode, node.indexType);
},
[SyntaxKind.MappedType]: function forEachChildInMappedType<T>(node: MappedTypeNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.readonlyToken) ||
visitNode(cbNode, node.typeParameter) ||
visitNode(cbNode, node.nameType) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.type) ||
visitNodes(cbNode, cbNodes, node.members);
},
[SyntaxKind.LiteralType]: function forEachChildInLiteralType<T>(node: LiteralTypeNode, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.literal);
},
[SyntaxKind.NamedTupleMember]: function forEachChildInNamedTupleMember<T>(node: NamedTupleMember, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.dotDotDotToken) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.ObjectBindingPattern]: forEachChildInObjectOrArrayBindingPattern,
[SyntaxKind.ArrayBindingPattern]: forEachChildInObjectOrArrayBindingPattern,
[SyntaxKind.ArrayLiteralExpression]: function forEachChildInArrayLiteralExpression<T>(node: ArrayLiteralExpression, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.elements);
},
[SyntaxKind.ObjectLiteralExpression]: function forEachChildInObjectLiteralExpression<T>(node: ObjectLiteralExpression, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.properties);
},
[SyntaxKind.PropertyAccessExpression]: function forEachChildInPropertyAccessExpression<T>(node: PropertyAccessExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.questionDotToken) ||
visitNode(cbNode, node.name);
},
[SyntaxKind.ElementAccessExpression]: function forEachChildInElementAccessExpression<T>(node: ElementAccessExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.questionDotToken) ||
visitNode(cbNode, node.argumentExpression);
},
[SyntaxKind.CallExpression]: forEachChildInCallOrNewExpression,
[SyntaxKind.NewExpression]: forEachChildInCallOrNewExpression,
[SyntaxKind.TaggedTemplateExpression]: function forEachChildInTaggedTemplateExpression<T>(node: TaggedTemplateExpression, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tag) ||
visitNode(cbNode, node.questionDotToken) ||
visitNodes(cbNode, cbNodes, node.typeArguments) ||
visitNode(cbNode, node.template);
},
[SyntaxKind.TypeAssertionExpression]: function forEachChildInTypeAssertionExpression<T>(node: TypeAssertion, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.type) ||
visitNode(cbNode, node.expression);
},
[SyntaxKind.ParenthesizedExpression]: function forEachChildInParenthesizedExpression<T>(node: ParenthesizedExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.DeleteExpression]: function forEachChildInDeleteExpression<T>(node: DeleteExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.TypeOfExpression]: function forEachChildInTypeOfExpression<T>(node: TypeOfExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.VoidExpression]: function forEachChildInVoidExpression<T>(node: VoidExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.PrefixUnaryExpression]: function forEachChildInPrefixUnaryExpression<T>(node: PrefixUnaryExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.operand);
},
[SyntaxKind.YieldExpression]: function forEachChildInYieldExpression<T>(node: YieldExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.asteriskToken) ||
visitNode(cbNode, node.expression);
},
[SyntaxKind.AwaitExpression]: function forEachChildInAwaitExpression<T>(node: AwaitExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.PostfixUnaryExpression]: function forEachChildInPostfixUnaryExpression<T>(node: PostfixUnaryExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.operand);
},
[SyntaxKind.BinaryExpression]: function forEachChildInBinaryExpression<T>(node: BinaryExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.left) ||
visitNode(cbNode, node.operatorToken) ||
visitNode(cbNode, node.right);
},
[SyntaxKind.AsExpression]: function forEachChildInAsExpression<T>(node: AsExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.NonNullExpression]: function forEachChildInNonNullExpression<T>(node: NonNullExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.SatisfiesExpression]: function forEachChildInSatisfiesExpression<T>(node: SatisfiesExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) || visitNode(cbNode, node.type);
},
[SyntaxKind.MetaProperty]: function forEachChildInMetaProperty<T>(node: MetaProperty, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name);
},
[SyntaxKind.ConditionalExpression]: function forEachChildInConditionalExpression<T>(node: ConditionalExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.condition) ||
visitNode(cbNode, node.questionToken) ||
visitNode(cbNode, node.whenTrue) ||
visitNode(cbNode, node.colonToken) ||
visitNode(cbNode, node.whenFalse);
},
[SyntaxKind.SpreadElement]: function forEachChildInSpreadElement<T>(node: SpreadElement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.Block]: forEachChildInBlock,
[SyntaxKind.ModuleBlock]: forEachChildInBlock,
[SyntaxKind.SourceFile]: function forEachChildInSourceFile<T>(node: SourceFile, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.statements) ||
visitNode(cbNode, node.endOfFileToken);
},
[SyntaxKind.VariableStatement]: function forEachChildInVariableStatement<T>(node: VariableStatement, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.declarationList);
},
[SyntaxKind.VariableDeclarationList]: function forEachChildInVariableDeclarationList<T>(node: VariableDeclarationList, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.declarations);
},
[SyntaxKind.ExpressionStatement]: function forEachChildInExpressionStatement<T>(node: ExpressionStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.IfStatement]: function forEachChildInIfStatement<T>(node: IfStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.thenStatement) ||
visitNode(cbNode, node.elseStatement);
},
[SyntaxKind.DoStatement]: function forEachChildInDoStatement<T>(node: DoStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.statement) ||
visitNode(cbNode, node.expression);
},
[SyntaxKind.WhileStatement]: function forEachChildInWhileStatement<T>(node: WhileStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.statement);
},
[SyntaxKind.ForStatement]: function forEachChildInForStatement<T>(node: ForStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.initializer) ||
visitNode(cbNode, node.condition) ||
visitNode(cbNode, node.incrementor) ||
visitNode(cbNode, node.statement);
},
[SyntaxKind.ForInStatement]: function forEachChildInForInStatement<T>(node: ForInStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.initializer) ||
visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.statement);
},
[SyntaxKind.ForOfStatement]: function forEachChildInForOfStatement<T>(node: ForOfStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.awaitModifier) ||
visitNode(cbNode, node.initializer) ||
visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.statement);
},
[SyntaxKind.ContinueStatement]: forEachChildInContinueOrBreakStatement,
[SyntaxKind.BreakStatement]: forEachChildInContinueOrBreakStatement,
[SyntaxKind.ReturnStatement]: function forEachChildInReturnStatement<T>(node: ReturnStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.WithStatement]: function forEachChildInWithStatement<T>(node: WithStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.statement);
},
[SyntaxKind.SwitchStatement]: function forEachChildInSwitchStatement<T>(node: SwitchStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.caseBlock);
},
[SyntaxKind.CaseBlock]: function forEachChildInCaseBlock<T>(node: CaseBlock, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.clauses);
},
[SyntaxKind.CaseClause]: function forEachChildInCaseClause<T>(node: CaseClause, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNodes(cbNode, cbNodes, node.statements);
},
[SyntaxKind.DefaultClause]: function forEachChildInDefaultClause<T>(node: DefaultClause, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.statements);
},
[SyntaxKind.LabeledStatement]: function forEachChildInLabeledStatement<T>(node: LabeledStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.label) ||
visitNode(cbNode, node.statement);
},
[SyntaxKind.ThrowStatement]: function forEachChildInThrowStatement<T>(node: ThrowStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.TryStatement]: function forEachChildInTryStatement<T>(node: TryStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tryBlock) ||
visitNode(cbNode, node.catchClause) ||
visitNode(cbNode, node.finallyBlock);
},
[SyntaxKind.CatchClause]: function forEachChildInCatchClause<T>(node: CatchClause, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.variableDeclaration) ||
visitNode(cbNode, node.block);
},
[SyntaxKind.Decorator]: function forEachChildInDecorator<T>(node: Decorator, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.ClassDeclaration]: forEachChildInClassDeclarationOrExpression,
[SyntaxKind.ClassExpression]: forEachChildInClassDeclarationOrExpression,
[SyntaxKind.InterfaceDeclaration]: function forEachChildInInterfaceDeclaration<T>(node: InterfaceDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.heritageClauses) ||
visitNodes(cbNode, cbNodes, node.members);
},
[SyntaxKind.TypeAliasDeclaration]: function forEachChildInTypeAliasDeclaration<T>(node: TypeAliasDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.EnumDeclaration]: function forEachChildInEnumDeclaration<T>(node: EnumDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.members);
},
[SyntaxKind.EnumMember]: function forEachChildInEnumMember<T>(node: EnumMember, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name) ||
visitNode(cbNode, node.initializer);
},
[SyntaxKind.ModuleDeclaration]: function forEachChildInModuleDeclaration<T>(node: ModuleDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.body);
},
[SyntaxKind.ImportEqualsDeclaration]: function forEachChildInImportEqualsDeclaration<T>(node: ImportEqualsDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNode(cbNode, node.moduleReference);
},
[SyntaxKind.ImportDeclaration]: function forEachChildInImportDeclaration<T>(node: ImportDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.importClause) ||
visitNode(cbNode, node.moduleSpecifier) ||
visitNode(cbNode, node.assertClause);
},
[SyntaxKind.ImportClause]: function forEachChildInImportClause<T>(node: ImportClause, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name) ||
visitNode(cbNode, node.namedBindings);
},
[SyntaxKind.AssertClause]: function forEachChildInAssertClause<T>(node: AssertClause, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.elements);
},
[SyntaxKind.AssertEntry]: function forEachChildInAssertEntry<T>(node: AssertEntry, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name) ||
visitNode(cbNode, node.value);
},
[SyntaxKind.NamespaceExportDeclaration]: function forEachChildInNamespaceExportDeclaration<T>(node: NamespaceExportDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNode(cbNode, node.name);
},
[SyntaxKind.NamespaceImport]: function forEachChildInNamespaceImport<T>(node: NamespaceImport, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name);
},
[SyntaxKind.NamespaceExport]: function forEachChildInNamespaceExport<T>(node: NamespaceExport, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name);
},
[SyntaxKind.NamedImports]: forEachChildInNamedImportsOrExports,
[SyntaxKind.NamedExports]: forEachChildInNamedImportsOrExports,
[SyntaxKind.ExportDeclaration]: function forEachChildInExportDeclaration<T>(node: ExportDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.exportClause) ||
visitNode(cbNode, node.moduleSpecifier) ||
visitNode(cbNode, node.assertClause);
},
[SyntaxKind.ImportSpecifier]: forEachChildInImportOrExportSpecifier,
[SyntaxKind.ExportSpecifier]: forEachChildInImportOrExportSpecifier,
[SyntaxKind.ExportAssignment]: function forEachChildInExportAssignment<T>(node: ExportAssignment, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.expression);
},
[SyntaxKind.TemplateExpression]: function forEachChildInTemplateExpression<T>(node: TemplateExpression, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.head) ||
visitNodes(cbNode, cbNodes, node.templateSpans);
},
[SyntaxKind.TemplateSpan]: function forEachChildInTemplateSpan<T>(node: TemplateSpan, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNode(cbNode, node.literal);
},
[SyntaxKind.TemplateLiteralType]: function forEachChildInTemplateLiteralType<T>(node: TemplateLiteralTypeNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.head) ||
visitNodes(cbNode, cbNodes, node.templateSpans);
},
[SyntaxKind.TemplateLiteralTypeSpan]: function forEachChildInTemplateLiteralTypeSpan<T>(node: TemplateLiteralTypeSpan, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.type) ||
visitNode(cbNode, node.literal);
},
[SyntaxKind.ComputedPropertyName]: function forEachChildInComputedPropertyName<T>(node: ComputedPropertyName, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.HeritageClause]: function forEachChildInHeritageClause<T>(node: HeritageClause, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.types);
},
[SyntaxKind.ExpressionWithTypeArguments]: function forEachChildInExpressionWithTypeArguments<T>(node: ExpressionWithTypeArguments, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
visitNodes(cbNode, cbNodes, node.typeArguments);
},
[SyntaxKind.ExternalModuleReference]: function forEachChildInExternalModuleReference<T>(node: ExternalModuleReference, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.MissingDeclaration]: function forEachChildInMissingDeclaration<T>(node: MissingDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.illegalDecorators) ||
visitNodes(cbNode, cbNodes, node.modifiers);
},
[SyntaxKind.CommaListExpression]: function forEachChildInCommaListExpression<T>(node: CommaListExpression, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.elements);
},
[SyntaxKind.JsxElement]: function forEachChildInJsxElement<T>(node: JsxElement, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.openingElement) ||
visitNodes(cbNode, cbNodes, node.children) ||
visitNode(cbNode, node.closingElement);
},
[SyntaxKind.JsxFragment]: function forEachChildInJsxFragment<T>(node: JsxFragment, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.openingFragment) ||
visitNodes(cbNode, cbNodes, node.children) ||
visitNode(cbNode, node.closingFragment);
},
[SyntaxKind.JsxSelfClosingElement]: forEachChildInJsxOpeningOrSelfClosingElement,
[SyntaxKind.JsxOpeningElement]: forEachChildInJsxOpeningOrSelfClosingElement,
[SyntaxKind.JsxAttributes]: function forEachChildInJsxAttributes<T>(node: JsxAttributes, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.properties);
},
[SyntaxKind.JsxAttribute]: function forEachChildInJsxAttribute<T>(node: JsxAttribute, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name) ||
visitNode(cbNode, node.initializer);
},
[SyntaxKind.JsxSpreadAttribute]: function forEachChildInJsxSpreadAttribute<T>(node: JsxSpreadAttribute, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
},
[SyntaxKind.JsxExpression]: function forEachChildInJsxExpression<T>(node: JsxExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.dotDotDotToken) ||
visitNode(cbNode, node.expression);
},
[SyntaxKind.JsxClosingElement]: function forEachChildInJsxClosingElement<T>(node: JsxClosingElement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName);
},
[SyntaxKind.OptionalType]: forEachChildInOptionalRestOrJSDocParameterModifier,
[SyntaxKind.RestType]: forEachChildInOptionalRestOrJSDocParameterModifier,
[SyntaxKind.JSDocTypeExpression]: forEachChildInOptionalRestOrJSDocParameterModifier,
[SyntaxKind.JSDocNonNullableType]: forEachChildInOptionalRestOrJSDocParameterModifier,
[SyntaxKind.JSDocNullableType]: forEachChildInOptionalRestOrJSDocParameterModifier,
[SyntaxKind.JSDocOptionalType]: forEachChildInOptionalRestOrJSDocParameterModifier,
[SyntaxKind.JSDocVariadicType]: forEachChildInOptionalRestOrJSDocParameterModifier,
[SyntaxKind.JSDocFunctionType]: function forEachChildInJSDocFunctionType<T>(node: JSDocFunctionType, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.JSDoc]: function forEachChildInJSDoc<T>(node: JSDoc, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return (typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment))
|| visitNodes(cbNode, cbNodes, node.tags);
},
[SyntaxKind.JSDocSeeTag]: function forEachChildInJSDocSeeTag<T>(node: JSDocSeeTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
visitNode(cbNode, node.name) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
},
[SyntaxKind.JSDocNameReference]: function forEachChildInJSDocNameReference<T>(node: JSDocNameReference, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name);
},
[SyntaxKind.JSDocMemberName]: function forEachChildInJSDocMemberName<T>(node: JSDocMemberName, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.left) ||
visitNode(cbNode, node.right);
},
[SyntaxKind.JSDocParameterTag]: forEachChildInJSDocParameterOrPropertyTag,
[SyntaxKind.JSDocPropertyTag]: forEachChildInJSDocParameterOrPropertyTag,
[SyntaxKind.JSDocAuthorTag]: function forEachChildInJSDocAuthorTag<T>(node: JSDocAuthorTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
},
[SyntaxKind.JSDocImplementsTag]: function forEachChildInJSDocImplementsTag<T>(node: JSDocImplementsTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
visitNode(cbNode, node.class) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
},
[SyntaxKind.JSDocAugmentsTag]: function forEachChildInJSDocAugmentsTag<T>(node: JSDocAugmentsTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
visitNode(cbNode, node.class) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
},
[SyntaxKind.JSDocTemplateTag]: function forEachChildInJSDocTemplateTag<T>(node: JSDocTemplateTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
visitNode(cbNode, node.constraint) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
},
[SyntaxKind.JSDocTypedefTag]: function forEachChildInJSDocTypedefTag<T>(node: JSDocTypedefTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
(node.typeExpression &&
node.typeExpression.kind === SyntaxKind.JSDocTypeExpression
? visitNode(cbNode, node.typeExpression) ||
visitNode(cbNode, node.fullName) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment))
: visitNode(cbNode, node.fullName) ||
visitNode(cbNode, node.typeExpression) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment)));
},
[SyntaxKind.JSDocCallbackTag]: function forEachChildInJSDocCallbackTag<T>(node: JSDocCallbackTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
visitNode(cbNode, node.fullName) ||
visitNode(cbNode, node.typeExpression) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
},
[SyntaxKind.JSDocReturnTag]: forEachChildInJSDocReturnTag,
[SyntaxKind.JSDocTypeTag]: forEachChildInJSDocReturnTag,
[SyntaxKind.JSDocThisTag]: forEachChildInJSDocReturnTag,
[SyntaxKind.JSDocEnumTag]: forEachChildInJSDocReturnTag,
[SyntaxKind.JSDocSignature]: function forEachChildInJSDocSignature<T>(node: JSDocSignature, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return forEach(node.typeParameters, cbNode) ||
forEach(node.parameters, cbNode) ||
visitNode(cbNode, node.type);
},
[SyntaxKind.JSDocLink]: forEachChildInJSDocLinkCodeOrPlain,
[SyntaxKind.JSDocLinkCode]: forEachChildInJSDocLinkCodeOrPlain,
[SyntaxKind.JSDocLinkPlain]: forEachChildInJSDocLinkCodeOrPlain,
[SyntaxKind.JSDocTypeLiteral]: function forEachChildInJSDocTypeLiteral<T>(node: JSDocTypeLiteral, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return forEach(node.jsDocPropertyTags, cbNode);
},
[SyntaxKind.JSDocTag]: forEachChildInJSDocTag,
[SyntaxKind.JSDocClassTag]: forEachChildInJSDocTag,
[SyntaxKind.JSDocPublicTag]: forEachChildInJSDocTag,
[SyntaxKind.JSDocPrivateTag]: forEachChildInJSDocTag,
[SyntaxKind.JSDocProtectedTag]: forEachChildInJSDocTag,
[SyntaxKind.JSDocReadonlyTag]: forEachChildInJSDocTag,
[SyntaxKind.JSDocDeprecatedTag]: forEachChildInJSDocTag,
[SyntaxKind.JSDocOverrideTag]: forEachChildInJSDocTag,
[SyntaxKind.PartiallyEmittedExpression]: forEachChildInPartiallyEmittedExpression,
};
// shared
function forEachChildInCallOrConstructSignature<T>(node: CallSignatureDeclaration | ConstructSignatureDeclaration, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.parameters) ||
visitNode(cbNode, node.type);
}
function forEachChildInUnionOrIntersectionType<T>(node: UnionTypeNode | IntersectionTypeNode, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.types);
}
function forEachChildInParenthesizedTypeOrTypeOperator<T>(node: ParenthesizedTypeNode | TypeOperatorNode, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.type);
}
function forEachChildInObjectOrArrayBindingPattern<T>(node: BindingPattern, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.elements);
}
function forEachChildInCallOrNewExpression<T>(node: CallExpression | NewExpression, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression) ||
// TODO: should we separate these branches out?
visitNode(cbNode, (node as CallExpression).questionDotToken) ||
visitNodes(cbNode, cbNodes, node.typeArguments) ||
visitNodes(cbNode, cbNodes, node.arguments);
}
function forEachChildInBlock<T>(node: Block | ModuleBlock, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.statements);
}
function forEachChildInContinueOrBreakStatement<T>(node: ContinueStatement | BreakStatement, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.label);
}
function forEachChildInClassDeclarationOrExpression<T>(node: ClassDeclaration | ClassExpression, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.modifiers) ||
visitNode(cbNode, node.name) ||
visitNodes(cbNode, cbNodes, node.typeParameters) ||
visitNodes(cbNode, cbNodes, node.heritageClauses) ||
visitNodes(cbNode, cbNodes, node.members);
}
function forEachChildInNamedImportsOrExports<T>(node: NamedImports | NamedExports, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNodes(cbNode, cbNodes, node.elements);
}
function forEachChildInImportOrExportSpecifier<T>(node: ImportSpecifier | ExportSpecifier, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.propertyName) ||
visitNode(cbNode, node.name);
}
function forEachChildInJsxOpeningOrSelfClosingElement<T>(node: JsxOpeningLikeElement, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
visitNodes(cbNode, cbNodes, node.typeArguments) ||
visitNode(cbNode, node.attributes);
}
function forEachChildInOptionalRestOrJSDocParameterModifier<T>(node: OptionalTypeNode | RestTypeNode | JSDocTypeExpression | JSDocNullableType | JSDocNonNullableType | JSDocOptionalType | JSDocVariadicType, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.type);
}
function forEachChildInJSDocParameterOrPropertyTag<T>(node: JSDocParameterTag | JSDocPropertyTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
(node.isNameFirst
? visitNode(cbNode, node.name) || visitNode(cbNode, node.typeExpression)
: visitNode(cbNode, node.typeExpression) || visitNode(cbNode, node.name)) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
}
function forEachChildInJSDocReturnTag<T>(node: JSDocReturnTag | JSDocTypeTag | JSDocThisTag | JSDocEnumTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName) ||
visitNode(cbNode, node.typeExpression) ||
(typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
}
function forEachChildInJSDocLinkCodeOrPlain<T>(node: JSDocLink | JSDocLinkCode | JSDocLinkPlain, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.name);
}
function forEachChildInJSDocTag<T>(node: JSDocUnknownTag | JSDocClassTag | JSDocPublicTag | JSDocPrivateTag | JSDocProtectedTag | JSDocReadonlyTag | JSDocDeprecatedTag | JSDocOverrideTag, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.tagName)
|| (typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
}
function forEachChildInPartiallyEmittedExpression<T>(node: PartiallyEmittedExpression, cbNode: (node: Node) => T | undefined, _cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
return visitNode(cbNode, node.expression);
}
/**
* Invokes a callback for each child of the given node. The 'cbNode' callback is invoked for all child nodes
* stored in properties. If a 'cbNodes' callback is specified, it is invoked for embedded arrays; otherwise,
* embedded arrays are flattened and the 'cbNode' callback is invoked for each element. If a callback returns
* a truthy value, iteration stops and that value is returned. Otherwise, undefined is returned.
*
* @param node a given node to visit its children
* @param cbNode a callback to be invoked for all child nodes
* @param cbNodes a callback to be invoked for embedded array
*
* @remarks `forEachChild` must visit the children of a node in the order
* that they appear in the source code. The language service depends on this property to locate nodes by position.
*/
export function forEachChild<T>(node: Node, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined): T | undefined {
if (node === undefined || node.kind <= SyntaxKind.LastToken) {
return;
}
const fn = (forEachChildTable as Record<SyntaxKind, ForEachChildFunction<any>>)[node.kind];
return fn === undefined ? undefined : fn(node, cbNode, cbNodes);
}
/** @internal */
/**
* Invokes a callback for each child of the given node. The 'cbNode' callback is invoked for all child nodes
* stored in properties. If a 'cbNodes' callback is specified, it is invoked for embedded arrays; additionally,
* unlike `forEachChild`, embedded arrays are flattened and the 'cbNode' callback is invoked for each element.
* If a callback returns a truthy value, iteration stops and that value is returned. Otherwise, undefined is returned.
*
* @param node a given node to visit its children
* @param cbNode a callback to be invoked for all child nodes
* @param cbNodes a callback to be invoked for embedded array
*
* @remarks Unlike `forEachChild`, `forEachChildRecursively` handles recursively invoking the traversal on each child node found,
* and while doing so, handles traversing the structure without relying on the callstack to encode the tree structure.
*/
export function forEachChildRecursively<T>(rootNode: Node, cbNode: (node: Node, parent: Node) => T | "skip" | undefined, cbNodes?: (nodes: NodeArray<Node>, parent: Node) => T | "skip" | undefined): T | undefined {
const queue: (Node | NodeArray<Node>)[] = gatherPossibleChildren(rootNode);
const parents: Node[] = []; // tracks parent references for elements in queue
while (parents.length < queue.length) {
parents.push(rootNode);
}
while (queue.length !== 0) {
const current = queue.pop()!;
const parent = parents.pop()!;
if (isArray(current)) {
if (cbNodes) {
const res = cbNodes(current, parent);
if (res) {
if (res === "skip") continue;
return res;
}
}
for (let i = current.length - 1; i >= 0; --i) {
queue.push(current[i]);
parents.push(parent);
}
}
else {
const res = cbNode(current, parent);
if (res) {
if (res === "skip") continue;
return res;
}
if (current.kind >= SyntaxKind.FirstNode) {
// add children in reverse order to the queue, so popping gives the first child
for (const child of gatherPossibleChildren(current)) {
queue.push(child);
parents.push(current);
}
}
}
}
}
function gatherPossibleChildren(node: Node) {
const children: (Node | NodeArray<Node>)[] = [];
forEachChild(node, addWorkItem, addWorkItem); // By using a stack above and `unshift` here, we emulate a depth-first preorder traversal
return children;
function addWorkItem(n: Node | NodeArray<Node>) {
children.unshift(n);
}
}
export interface CreateSourceFileOptions {
languageVersion: ScriptTarget;
/**
* Controls the format the file is detected as - this can be derived from only the path
* and files on disk, but needs to be done with a module resolution cache in scope to be performant.
* This is usually `undefined` for compilations that do not have `moduleResolution` values of `node16` or `nodenext`.
*/
impliedNodeFormat?: ModuleKind.ESNext | ModuleKind.CommonJS;
/**
* Controls how module-y-ness is set for the given file. Usually the result of calling
* `getSetExternalModuleIndicator` on a valid `CompilerOptions` object. If not present, the default
* check specified by `isFileProbablyExternalModule` will be used to set the field.
*/
setExternalModuleIndicator?: (file: SourceFile) => void;
/*@internal*/ packageJsonLocations?: readonly string[];
/*@internal*/ packageJsonScope?: PackageJsonInfo;
}
function setExternalModuleIndicator(sourceFile: SourceFile) {
sourceFile.externalModuleIndicator = isFileProbablyExternalModule(sourceFile);
}
export function createSourceFile(fileName: string, sourceText: string, languageVersionOrOptions: ScriptTarget | CreateSourceFileOptions, setParentNodes = false, scriptKind?: ScriptKind): SourceFile {
tracing?.push(tracing.Phase.Parse, "createSourceFile", { path: fileName }, /*separateBeginAndEnd*/ true);
performance.mark("beforeParse");
let result: SourceFile;
perfLogger.logStartParseSourceFile(fileName);
const {
languageVersion,
setExternalModuleIndicator: overrideSetExternalModuleIndicator,
impliedNodeFormat: format
} = typeof languageVersionOrOptions === "object" ? languageVersionOrOptions : ({ languageVersion: languageVersionOrOptions } as CreateSourceFileOptions);
if (languageVersion === ScriptTarget.JSON) {
result = Parser.parseSourceFile(fileName, sourceText, languageVersion, /*syntaxCursor*/ undefined, setParentNodes, ScriptKind.JSON, noop);
}
else {
const setIndicator = format === undefined ? overrideSetExternalModuleIndicator : (file: SourceFile) => {
file.impliedNodeFormat = format;
return (overrideSetExternalModuleIndicator || setExternalModuleIndicator)(file);
};
result = Parser.parseSourceFile(fileName, sourceText, languageVersion, /*syntaxCursor*/ undefined, setParentNodes, scriptKind, setIndicator);
}
perfLogger.logStopParseSourceFile();
performance.mark("afterParse");
performance.measure("Parse", "beforeParse", "afterParse");
tracing?.pop();
return result;
}
export function parseIsolatedEntityName(text: string, languageVersion: ScriptTarget): EntityName | undefined {
return Parser.parseIsolatedEntityName(text, languageVersion);
}
/**
* Parse json text into SyntaxTree and return node and parse errors if any
* @param fileName
* @param sourceText
*/
export function parseJsonText(fileName: string, sourceText: string): JsonSourceFile {
return Parser.parseJsonText(fileName, sourceText);
}
// See also `isExternalOrCommonJsModule` in utilities.ts
export function isExternalModule(file: SourceFile): boolean {
return file.externalModuleIndicator !== undefined;
}
// Produces a new SourceFile for the 'newText' provided. The 'textChangeRange' parameter
// indicates what changed between the 'text' that this SourceFile has and the 'newText'.
// The SourceFile will be created with the compiler attempting to reuse as many nodes from
// this file as possible.
//
// Note: this function mutates nodes from this SourceFile. That means any existing nodes
// from this SourceFile that are being held onto may change as a result (including
// becoming detached from any SourceFile). It is recommended that this SourceFile not
// be used once 'update' is called on it.
export function updateSourceFile(sourceFile: SourceFile, newText: string, textChangeRange: TextChangeRange, aggressiveChecks = false): SourceFile {
const newSourceFile = IncrementalParser.updateSourceFile(sourceFile, newText, textChangeRange, aggressiveChecks);
// Because new source file node is created, it may not have the flag PossiblyContainDynamicImport. This is the case if there is no new edit to add dynamic import.
// We will manually port the flag to the new source file.
(newSourceFile as Mutable<SourceFile>).flags |= (sourceFile.flags & NodeFlags.PermanentlySetIncrementalFlags);
return newSourceFile;
}