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Optional variance annotations (#48240)

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* Simplify getVariancesWorker and associated logic

* Accept new API baselines

* Add 'in' and 'out' modififers / add modifiers to type parameters

* Check variance annotations

* Update test runner

* Accept new API baselines

* Allow variance annotations only on certain type parameters

* Add deprecated implementation of createTypeParameterDeclaration

* Accept new API baselines

* Report variance markers as 'sub-XXX' and 'super-XXX'

* Add tests

* Accept new baselines
This commit is contained in:
Anders Hejlsberg
2022-03-22 11:31:08 -07:00
committed by GitHub
parent fdb1c2fc35
commit 6cb58d382f
25 changed files with 2295 additions and 577 deletions
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src/compiler/program.ts
+2
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@@ -2414,6 +2414,8 @@ namespace ts {
case SyntaxKind.DeclareKeyword:
case SyntaxKind.AbstractKeyword:
case SyntaxKind.OverrideKeyword:
case SyntaxKind.InKeyword:
case SyntaxKind.OutKeyword:
diagnostics.push(createDiagnosticForNode(modifier, Diagnostics.The_0_modifier_can_only_be_used_in_TypeScript_files, tokenToString(modifier.kind)));
break;