microsoft/TypeScript
1
0
Fork 0
mirror of https://github.com/microsoft/TypeScript.git synced 2026-02-08 08:14:51 -06:00
Code Issues Packages Projects Releases 212 Wiki Activity

Get rid of list and map abstractions to reduce GC pressure

Browse Source
This commit is contained in:
Nathan Shively-Sanders 2015-12-17 15:38:02 -08:00
parent aa1a7664e7
commit d59831b4e8
1 changed files with 9 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
src/compiler/checker.ts
View File

@ -5762,22 +5762,19 @@ namespace ts {
target.symbol.flags & SymbolFlags.ConstEnum) {
return Ternary.False;
}
const targetNames = arrayToMap(getEnumMembersOfEnumType(target), member => member.name);
for (const member of getEnumMembersOfEnumType(source)) {
if (!hasProperty(targetNames, member.name)) {
reportError(Diagnostics.Property_0_is_missing_in_type_1,
member.name,
typeToString(target, /*enclosingDeclaration*/ undefined, TypeFormatFlags.UseFullyQualifiedType));
return Ternary.False;
for (const property of getPropertiesOfType(getTypeOfSymbol(source.symbol))) {
if (property.flags & SymbolFlags.EnumMember) {
const targetProperty = getPropertyOfType(getTypeOfSymbol(target.symbol), property.name);
if (!targetProperty || !(targetProperty.flags & SymbolFlags.EnumMember)) {
reportError(Diagnostics.Property_0_is_missing_in_type_1,
property.name,
typeToString(target, /*enclosingDeclaration*/ undefined, TypeFormatFlags.UseFullyQualifiedType));
return Ternary.False;
}
}
}
return Ternary.True;
}
function getEnumMembersOfEnumType(type: Type) {
return filter(resolveStructuredTypeMembers(getTypeOfSymbol(type.symbol)).properties,
property => !!(property.flags & SymbolFlags.EnumMember));
}
}
// Return true if the given type is part of a deeply nested chain of generic instantiations. We consider this to be the case