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skip implements types with no symbols

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This commit is contained in:
Nathan Shively-Sanders 2020-06-11 16:34:32 -07:00
parent 9f872c01e1
commit a26e60eb2c
1 changed files with 5 additions and 3 deletions
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8
src/compiler/checker.ts
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@ -6380,7 +6380,7 @@ namespace ts {
const typeParamDecls = map(localParams, p => typeParameterToDeclaration(p, context));
const classType = getDeclaredTypeOfClassOrInterface(symbol);
const baseTypes = getBaseTypes(classType);
const implementsTypes = getImplementsTypes(classType);
const implementsExpressions = mapDefined(getImplementsTypes(classType), serializeImplementedType);
const staticType = getTypeOfSymbol(symbol);
const isClass = !!staticType.symbol?.valueDeclaration && isClassLike(staticType.symbol.valueDeclaration);
const staticBaseType = isClass
@ -6388,7 +6388,7 @@ namespace ts {
: anyType;
const heritageClauses = [
...!length(baseTypes) ? [] : [createHeritageClause(SyntaxKind.ExtendsKeyword, map(baseTypes, b => serializeBaseType(b, staticBaseType, localName)))],
...!length(implementsTypes) ? [] : [createHeritageClause(SyntaxKind.ImplementsKeyword, map(implementsTypes, b => serializeImplementedType(b)))]
...!length(implementsExpressions) ? [] : [createHeritageClause(SyntaxKind.ImplementsKeyword, implementsExpressions)]
];
const symbolProps = getNonInterhitedProperties(classType, baseTypes, getPropertiesOfType(classType));
const publicSymbolProps = filter(symbolProps, s => {
@ -6914,7 +6914,9 @@ namespace ts {
if (ref) {
return ref;
}
return createExpressionWithTypeArguments(/*typeArgs*/ undefined, symbolToExpression(t.symbol, context, SymbolFlags.Type));
if (t.symbol) {
return createExpressionWithTypeArguments(/*typeArgs*/ undefined, symbolToExpression(t.symbol, context, SymbolFlags.Type));
}
}
function getUnusedName(input: string, symbol?: Symbol): string {