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Address CR feedback

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This commit is contained in:
Anders Hejlsberg 2018-10-11 08:45:47 -07:00
parent 840214f1ea
commit dd6365615d
1 changed files with 2 additions and 3 deletions
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5
src/compiler/checker.ts
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@ -9312,12 +9312,11 @@ namespace ts {
propType;
}
if (everyType(objectType, isTupleType) && isNumericLiteralName(propName) && +propName >= 0) {
const restType = mapType(objectType, t => getRestTypeOfTupleType(<TupleTypeReference>t) || undefinedType);
if (restType === undefinedType && accessNode) {
if (accessNode && everyType(objectType, t => !(<TupleTypeReference>t).target.hasRestElement)) {
const indexNode = accessNode.kind === SyntaxKind.ElementAccessExpression ? accessNode.argumentExpression : accessNode.indexType;
error(indexNode, Diagnostics.Property_0_does_not_exist_on_type_1, unescapeLeadingUnderscores(propName), typeToString(objectType));
}
return restType;
return mapType(objectType, t => getRestTypeOfTupleType(<TupleTypeReference>t) || undefinedType);
}
}
if (!(indexType.flags & TypeFlags.Nullable) && isTypeAssignableToKind(indexType, TypeFlags.StringLike | TypeFlags.NumberLike | TypeFlags.ESSymbolLike)) {