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Write out type parameter in type alias in quick-info

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Yui T
2015-08-19 12:38:36 -07:00
parent ed1383842c
commit 4c44de6c5f
2 changed files with 12 additions and 1 deletions
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src/compiler/checker.ts
+1 -1
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@@ -1902,7 +1902,7 @@ namespace ts {
function buildTypeParameterDisplayFromSymbol(symbol: Symbol, writer: SymbolWriter, enclosingDeclaraiton?: Node, flags?: TypeFormatFlags) {
let targetSymbol = getTargetSymbol(symbol);
if (targetSymbol.flags & SymbolFlags.Class || targetSymbol.flags & SymbolFlags.Interface) {
if (targetSymbol.flags & SymbolFlags.Class || targetSymbol.flags & SymbolFlags.Interface || targetSymbol.flags & SymbolFlags.TypeAlias) {
buildDisplayForTypeParametersAndDelimiters(getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol), writer, enclosingDeclaraiton, flags);
}
}
src/services/services.ts
+11
View File
@@ -4040,6 +4040,7 @@ namespace ts {
displayParts.push(keywordPart(SyntaxKind.TypeKeyword));
displayParts.push(spacePart());
addFullSymbolName(symbol);
writeTypeParametersOfSymbol(symbol, sourceFile);
displayParts.push(spacePart());
displayParts.push(operatorPart(SyntaxKind.EqualsToken));
displayParts.push(spacePart());
@@ -4093,6 +4094,16 @@ namespace ts {
}
addRange(displayParts, signatureToDisplayParts(typeChecker, signature, sourceFile, TypeFormatFlags.WriteTypeArgumentsOfSignature));
}
else {
// Type aliash type parameter
// For example
// type list<T> = T[]; // Both T will go through same code path
let declaration = <TypeAliasDeclaration>getDeclarationOfKind(symbol, SyntaxKind.TypeParameter).parent;
displayParts.push(keywordPart(SyntaxKind.TypeKeyword));
displayParts.push(spacePart());
addFullSymbolName(declaration.symbol);
writeTypeParametersOfSymbol(declaration.symbol, sourceFile);
}
}
}
if (symbolFlags & SymbolFlags.EnumMember) {