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e15a370084
CheckSingleAssignmentConstraints. These no longer produce ExprError() when they have not emitted an error, and reliably inform the caller when they *have* emitted an error. This fixes some serious issues where we would fail to emit any diagnostic for invalid code and then attempt to emit code for an invalid AST, and conversely some issues where we would emit two diagnostics for the same problem. llvm-svn: 283508
34 lines
1.2 KiB
C++
34 lines
1.2 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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class A { };
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class B : public A { };
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class C : public A { };
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class D : public B, public C { };
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void f(D* d) {
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A* a;
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a = d; // expected-error{{ambiguous conversion from derived class 'D' to base class 'A':}}
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}
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class Object2 { };
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class A2 : public Object2 { };
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class B2 : public virtual A2 { };
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class C2 : virtual public A2 { };
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class D2 : public B2, public C2 { };
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class E2 : public D2, public C2, public virtual A2 { }; // expected-warning{{direct base 'C2' is inaccessible due to ambiguity:\n class E2 -> class D2 -> class C2\n class E2 -> class C2}}
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class F2 : public E2, public A2 { }; // expected-warning{{direct base 'A2' is inaccessible due to ambiguity:\n class F2 -> class E2 -> class D2 -> class B2 -> class A2\n class F2 -> class A2}}
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void g(E2* e2, F2* f2) {
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Object2* o2;
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o2 = e2;
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o2 = f2; // expected-error{{ambiguous conversion from derived class 'F2' to base class 'Object2':}}
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}
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// Test that ambiguous/inaccessibility checking does not trigger too
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// early, because it should not apply during overload resolution.
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void overload_okay(Object2*);
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void overload_okay(E2*);
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void overload_call(F2* f2) {
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overload_okay(f2);
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}
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