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Fix bug in resolveMappedTypeMembers

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This commit is contained in:
Anders Hejlsberg 2018-01-24 13:51:37 -08:00
parent b42c6b1db6
commit 8e337b5121
1 changed files with 1 additions and 1 deletions
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2
src/compiler/checker.ts
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@ -5788,7 +5788,7 @@ namespace ts {
// and T as the template type.
const typeParameter = getTypeParameterFromMappedType(type);
const constraintType = getConstraintTypeFromMappedType(type);
const templateType = getTemplateTypeFromMappedType(type);
const templateType = getTemplateTypeFromMappedType(<MappedType>type.target || type);
const modifiersType = getApparentType(getModifiersTypeFromMappedType(type)); // The 'T' in 'keyof T'
const templateReadonly = !!type.declaration.readonlyToken;
const templateOptional = !!type.declaration.questionToken;