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Daniel
2020-05-22 01:49:26 +00:00
parent a008792d01
commit d3d282cb45
1 changed files with 2 additions and 6 deletions
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8
src/compiler/checker.ts
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@@ -15730,17 +15730,13 @@ namespace ts {
function reportRelationError(message: DiagnosticMessage | undefined, source: Type, target: Type) {
if (incompatibleStack.length) reportIncompatibleStack();
const [sourceType, targetType] = getTypeNamesForErrorDisplay(source, target);
let generalizedSource: Type;
let generalizedSourceType: string;
let generalizedSource = source;
let generalizedSourceType = sourceType;
if (isLiteralType(source) && !typeCouldHaveTopLevelSingletonTypes(target)) {
generalizedSource = getBaseTypeOfLiteralType(source);
generalizedSourceType = getTypeNameForErrorDisplay(generalizedSource);
}
else {
generalizedSource = source;
generalizedSourceType = sourceType;
}
if (target.flags & TypeFlags.TypeParameter) {
const constraint = getBaseConstraintOfType(target);