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Remove over-eager check of AccessFlags.Writing in getIndexedAccessType

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This commit is contained in:
Anders Hejlsberg 2019-04-28 13:56:11 -07:00
parent 454b4280b1
commit 9c401b4dbb
1 changed files with 1 additions and 1 deletions
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src/compiler/checker.ts
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@ -10080,7 +10080,7 @@ namespace ts {
error(indexNode, Diagnostics.Type_0_cannot_be_used_as_an_index_type, typeToString(indexType));
return indexInfo.type;
}
if (indexInfo.isReadonly && (accessFlags & AccessFlags.Writing || accessExpression && (isAssignmentTarget(accessExpression) || isDeleteTarget(accessExpression)))) {
if (indexInfo.isReadonly && accessExpression && (isAssignmentTarget(accessExpression) || isDeleteTarget(accessExpression))) {
if (accessExpression) {
error(accessExpression, Diagnostics.Index_signature_in_type_0_only_permits_reading, typeToString(objectType));
return indexInfo.type;