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Identifier constructor

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Sheetal Nandi
2016-06-09 16:18:24 -07:00
parent 4a77c97ae7
commit a2ff4ea0f8
3 changed files with 33 additions and 9 deletions
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src/compiler/parser.ts
+9 -3
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@@ -6,12 +6,16 @@ namespace ts {
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 SourceFileConstructor: new (kind: SyntaxKind, pos: number, end: number) => Node;
export function createNode(kind: SyntaxKind, pos?: number, end?: number): Node {
if (kind === SyntaxKind.SourceFile) {
return new (SourceFileConstructor || (SourceFileConstructor = objectAllocator.getSourceFileConstructor()))(kind, pos, end);
}
else if (kind === SyntaxKind.Identifier) {
return new (IdentifierConstructor || (IdentifierConstructor = objectAllocator.getIdentifierConstructor()))(kind, pos, end);
}
else if (kind < SyntaxKind.FirstNode) {
return new (TokenConstructor || (TokenConstructor = objectAllocator.getTokenConstructor()))(kind, pos, end);
}
@@ -471,6 +475,7 @@ namespace ts {
// capture constructors in 'initializeState' to avoid null checks
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 SourceFileConstructor: new (kind: SyntaxKind, pos: number, end: number) => Node;
let sourceFile: SourceFile;
@@ -582,6 +587,7 @@ namespace ts {
function initializeState(fileName: string, _sourceText: string, languageVersion: ScriptTarget, _syntaxCursor: IncrementalParser.SyntaxCursor, scriptKind: ScriptKind) {
NodeConstructor = objectAllocator.getNodeConstructor();
TokenConstructor = objectAllocator.getTokenConstructor();
IdentifierConstructor = objectAllocator.getIdentifierConstructor();
SourceFileConstructor = objectAllocator.getSourceFileConstructor();
sourceText = _sourceText;
@@ -1030,9 +1036,9 @@ namespace ts {
pos = scanner.getStartPos();
}
return kind >= SyntaxKind.FirstNode ?
new NodeConstructor(kind, pos, pos) :
new TokenConstructor(kind, pos, pos);
return kind >= SyntaxKind.FirstNode ? new NodeConstructor(kind, pos, pos) :
kind === SyntaxKind.Identifier ? new IdentifierConstructor(kind, pos, pos) :
new TokenConstructor(kind, pos, pos);
}
function finishNode<T extends Node>(node: T, end?: number): T {