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Code Issues Wiki Activity

Bug 409056 - Invalid ambiguity with templated conversion operator

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Change-Id: I9f56c875899ee2543aab2090387dbbdfd0e489b4
Reviewed-on: https://git.eclipse.org/r/13151
Reviewed-by: Sergey Prigogin <eclipse.sprigogin@gmail.com>
IP-Clean: Sergey Prigogin <eclipse.sprigogin@gmail.com>
Tested-by: Sergey Prigogin <eclipse.sprigogin@gmail.com>
This commit is contained in:
Nathan Ridge 2013-05-26 11:44:07 -07:00 • committed by Sergey Prigogin
parent dc086d6a53
commit 255cd71f24
2 changed files with 35 additions and 2 deletions
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33
core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2TemplateTests.java
View file

@ -125,6 +125,14 @@ public class AST2TemplateTests extends AST2TestBase {
private IASTTranslationUnit parseAndCheckBindings(final String code) throws Exception {
return parseAndCheckBindings(code, CPP);
}
protected IASTTranslationUnit parseAndCheckImplicitNameBindings() throws Exception {
IASTTranslationUnit tu = parse(getAboveComment(), CPP, false, true, false);
NameCollector col = new NameCollector(true /* visit implicit names */);
tu.accept(col);
assertNoProblemBindings(col);
return tu;
}
protected BindingAssertionHelper getAssertionHelper() throws ParserException, IOException {
String code= getAboveComment();
@ -7130,6 +7138,31 @@ public class AST2TemplateTests extends AST2TestBase {
assertNotNull(val);
assertEquals(0 /* false */, val.longValue());
}
// struct S {
// S(int);
// };
//
// template <typename>
// struct meta {};
//
// template <>
// struct meta<S> {
// typedef void type;
// };
//
// struct B {
// template <typename T, typename = typename meta<T>::type>
// operator T() const;
// };
//
// struct A {
// S waldo;
// A() : waldo(B{}) {}
// };
public void testSFINAEInTemplatedConversionOperator_409056() throws Exception {
parseAndCheckImplicitNameBindings();
}
// template <typename>
// struct M {

4
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/TemplateArgumentDeduction.java
View file

@ -370,8 +370,8 @@ public class TemplateArgumentDeduction {
final ICPPTemplateParameter tpar = tmplParams[i];
ICPPTemplateArgument deducedArg= map.getArgument(tpar);
if (deducedArg == null) {
deducedArg= tpar.getDefaultValue();
if (deducedArg == null)
deducedArg= CPPTemplates.instantiateArgument(tpar.getDefaultValue(), map, -1, null, point);
if (!CPPTemplates.isValidArgument(deducedArg))
return null;
}
result[i]= deducedArg;