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Filter outer type parameters (similar to anonymous types)

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This commit is contained in:
Anders Hejlsberg
2018-02-28 16:57:25 -08:00
parent 992870aefa
commit 69580c4561
1 changed files with 4 additions and 2 deletions
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6
src/compiler/checker.ts
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@@ -8278,7 +8278,9 @@ namespace ts {
const links = getNodeLinks(node);
if (!links.resolvedType) {
const checkType = getTypeFromTypeNode(node.checkType);
const outerTypeParameters = getOuterTypeParameters(node, /*includeThisTypes*/ true);
const aliasTypeArguments = getAliasTypeArgumentsForTypeNode(node);
const allOuterTypeParameters = getOuterTypeParameters(node, /*includeThisTypes*/ true);
const outerTypeParameters = aliasTypeArguments ? allOuterTypeParameters : filter(allOuterTypeParameters, tp => isTypeParameterPossiblyReferenced(tp, node));
const root: ConditionalRoot = {
node,
checkType,
@@ -8290,7 +8292,7 @@ namespace ts {
outerTypeParameters,
instantiations: undefined,
aliasSymbol: getAliasSymbolForTypeNode(node),
aliasTypeArguments: getAliasTypeArgumentsForTypeNode(node)
aliasTypeArguments
};
links.resolvedType = getConditionalType(root, /*mapper*/ undefined);
if (outerTypeParameters) {