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Code Issues Wiki Activity

Bug 514595 - Instantiate EvalConstructor.fType correctly

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Change-Id: I7ee2c7ffee4b15f0005ddb8bcc5c9051992908d3
This commit is contained in:
Nathan Ridge 2017-04-08 01:57:32 -04:00 • committed by Gerrit Code Review @ Eclipse.org
parent 8592b892dc
commit e42a75e3e5
2 changed files with 36 additions and 2 deletions
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20
core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/internal/index/tests/IndexCPPBindingResolutionTest.java
View file

@ -2452,6 +2452,26 @@ public class IndexCPPBindingResolutionTest extends IndexBindingResolutionTestBas
public void testDelegatingConstructorCallInConstexprConstructor_509871() throws Exception {
checkBindings();
}
// // empty file
// template <typename T>
// struct base {
// constexpr base() : p(0) {}
// int p;
// };
//
// template <typename T>
// struct derived : public base<T> {
// constexpr derived() : base<T>() {}
// constexpr derived(int) : derived() {}
// };
//
// class C {};
// derived<C> waldo = 0;
public void testDelegatingConstructorCallInConstexprConstructor_514595() throws Exception {
checkBindings();
}
// enum class NoneType { None };
// const NoneType None = None;

18
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/EvalConstructor.java
View file

@ -331,16 +331,18 @@ public final class EvalConstructor extends CPPDependentEvaluation {
@Override
public ICPPEvaluation instantiate(InstantiationContext context, int maxDepth) {
IType newType = CPPTemplates.instantiateType(fType, context);
ICPPEvaluation[] newArguments = new ICPPEvaluation[fArguments.length];
for (int i = 0; i < fArguments.length; i++) {
newArguments[i] = fArguments[i].instantiate(context, maxDepth);
}
IType newType = null;
ICPPConstructor newConstructor;
try {
newConstructor = (ICPPConstructor) CPPTemplates.instantiateBinding(fConstructor, context, maxDepth);
if (newConstructor != null) {
newType = newConstructor.getClassOwner();
}
if (newConstructor instanceof CPPDeferredFunction) {
ICPPFunction[] candidates = ((CPPDeferredFunction) newConstructor).getCandidates();
if (candidates != null) {
@ -352,6 +354,9 @@ public final class EvalConstructor extends CPPDependentEvaluation {
if (resolved instanceof EvalBinding) {
EvalBinding evalBinding = (EvalBinding) resolved;
newConstructor = (ICPPConstructor) evalBinding.getBinding();
if (newConstructor != null) {
newType = newConstructor.getClassOwner();
}
}
}
}
@ -359,6 +364,15 @@ public final class EvalConstructor extends CPPDependentEvaluation {
newConstructor = fConstructor;
}
// Only instantiate fType separately if we couldn't get the instantiated type
// via newConstructor.getClassOwner() for some reason. This is not just for
// efficiency; instantiating fType directly will not work if fType is a
// CPPClassTemplate because CPPTemplates.instantiateType() does not instantiate
// CPPClassTemplates, only CPPDeferredClassInstances (TODO: why?).
if (newType == null) {
newType = CPPTemplates.instantiateType(fType, context);
}
return new EvalConstructor(newType, newConstructor, newArguments, getTemplateDefinition());
}
}