Allow indexing generics with unique symbols #22339
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| @@ -5948,7 +5954,7 @@ namespace ts { | |||
| // If the current iteration type constituent is a string literal type, create a property. | |||
| // Otherwise, for type string create a string index signature. | |||
| if (t.flags & TypeFlags.StringLiteral) { | |||
| const propName = escapeLeadingUnderscores((<StringLiteralType>t).value); | |||
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Since this is a StringLiteral, does this need to be changed? Is it just for consistency?
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Mostly, yeah. The function below is used up above in the same body and is the correct one to use for future support of symbols as mapped type keys.
ahejlsberg
requested changes
Mar 5, 2018
src/compiler/checker.ts
Outdated
| getLiteralType(symbolName(prop)); | ||
| const links = getSymbolLinks(prop); | ||
| if (!links.nameType) { | ||
| if (links.target && links.target.escapedName === prop.escapedName) { |
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Shouldn't have to check names here.
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Moved to debug assertion.
ahejlsberg
approved these changes
Mar 5, 2018
ghost
mentioned this pull request
|
I think you mean: trie[letter][END_WORD] = END_VALUE;instead of trie[END_WORD] = END_VALUE; |
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Fixes #22320