2b9e3e396a
If we have multiple definitions of the same entity from different modules, we nominate the first definition which we see as being the canonical definition. If we load a declaration from a different definition and we can't find a corresponding declaration in the canonical definition, issue a diagnostic. This is insufficient to prevent things from going horribly wrong in all cases -- we might be in the middle of emitting IR for a function when we trigger some deserialization and discover that it refers to an incoherent piece of the AST, by which point it's probably too late to bail out -- but we'll at least produce a diagnostic. llvm-svn: 192950
21 lines
876 B
C++
21 lines
876 B
C++
// RUN: rm -rf %t
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// RUN: %clang_cc1 -x objective-c++ -fmodules -fmodules-cache-path=%t -I %S/Inputs/odr %s -verify -std=c++11
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// expected-error@a.h:8 {{'X::n' from module 'a' is not present in definition of 'X' provided earlier}}
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struct X { // expected-note {{definition has no member 'n'}}
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};
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@import a;
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@import b;
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// Trigger the declarations from a and b to be imported.
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int x = f() + g();
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// expected-note@a.h:5 {{definition has no member 'e2'}}
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// expected-note@a.h:3 {{declaration of 'f' does not match}}
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// expected-note@a.h:1 {{definition has no member 'm'}}
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// expected-error@b.h:5 {{'E::e2' from module 'b' is not present in definition of 'E' in module 'a'}}
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// expected-error@b.h:3 {{'Y::f' from module 'b' is not present in definition of 'Y' in module 'a'}}
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// expected-error@b.h:2 {{'Y::m' from module 'b' is not present in definition of 'Y' in module 'a'}}
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