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Fix null reference in type parametr of type alias

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This commit is contained in:
Yui T 2015-08-15 17:02:08 -07:00
parent 53239d4a8b
commit c57adeda1f
1 changed files with 12 additions and 9 deletions
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21
src/services/services.ts
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@ -4076,16 +4076,19 @@ namespace ts {
}
else {
// Method/function type parameter
let signatureDeclaration = <SignatureDeclaration>getDeclarationOfKind(symbol, SyntaxKind.TypeParameter).parent;
let signature = typeChecker.getSignatureFromDeclaration(signatureDeclaration);
if (signatureDeclaration.kind === SyntaxKind.ConstructSignature) {
displayParts.push(keywordPart(SyntaxKind.NewKeyword));
displayParts.push(spacePart());
let container = getContainingFunction(location);
if (container) {
let signatureDeclaration = <SignatureDeclaration>getDeclarationOfKind(symbol, SyntaxKind.TypeParameter).parent;
let signature = typeChecker.getSignatureFromDeclaration(signatureDeclaration);
if (signatureDeclaration.kind === SyntaxKind.ConstructSignature) {
displayParts.push(keywordPart(SyntaxKind.NewKeyword));
displayParts.push(spacePart());
}
else if (signatureDeclaration.kind !== SyntaxKind.CallSignature && signatureDeclaration.name) {
addFullSymbolName(signatureDeclaration.symbol);
}
addRange(displayParts, signatureToDisplayParts(typeChecker, signature, sourceFile, TypeFormatFlags.WriteTypeArgumentsOfSignature));
}
else if (signatureDeclaration.kind !== SyntaxKind.CallSignature && signatureDeclaration.name) {
addFullSymbolName(signatureDeclaration.symbol);
}
addRange(displayParts, signatureToDisplayParts(typeChecker, signature, sourceFile, TypeFormatFlags.WriteTypeArgumentsOfSignature));
}
}
if (symbolFlags & SymbolFlags.EnumMember) {