4abe0a8d82
name lookup from lazily deserializing the other declarations with the same name, by tracking a bit to indicate whether a name in a DeclContext might have additional external results. This also allows lazier reconciling of the lookup table if a module import adds decls to a pre-existing DC. However, this exposes a pre-existing bug, which causes a regression in test/Modules/decldef.mm: if we have a reference to a declaration, and a later-imported module adds a redeclaration, nothing causes us to load that redeclaration when we use or emit the reference (which can manifest as a reference to an undefined inline function, a use of an incomplete type, and so on). decldef.mm has been extended with an additional testcase which fails with or without this change. llvm-svn: 190293
85 lines
2.2 KiB
C++
85 lines
2.2 KiB
C++
// RUN: rm -rf %t
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// RUN: %clang_cc1 -x objective-c++ -fmodules -fmodules-cache-path=%t -I %S/Inputs %s -verify
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int &global(int);
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int &global2(int);
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namespace N6 {
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char &f(char);
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}
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namespace N8 { }
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namespace LookupBeforeImport {
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int &f(int);
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}
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void testEarly() {
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int &r = LookupBeforeImport::f(1);
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}
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@import namespaces_left;
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@import namespaces_right;
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void test() {
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int &ir1 = N1::f(1);
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int &ir2 = N2::f(1);
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int &ir3 = N3::f(1);
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int &ir4 = global(1);
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int &ir5 = ::global2(1);
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float &fr1 = N1::f(1.0f);
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float &fr2 = N2::f(1.0f);
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float &fr3 = global(1.0f);
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float &fr4 = ::global2(1.0f);
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float &fr5 = LookupBeforeImport::f(1.0f);
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double &dr1 = N2::f(1.0);
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double &dr2 = N3::f(1.0);
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double &dr3 = global(1.0);
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double &dr4 = ::global2(1.0);
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double &dr5 = LookupBeforeImport::f(1.0);
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}
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// Test namespaces merged without a common first declaration.
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namespace N5 {
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char &f(char);
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}
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namespace N10 {
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int &f(int);
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}
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void testMerged() {
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int &ir1 = N5::f(17);
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int &ir2 = N6::f(17);
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int &ir3 = N7::f(17);
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double &fr1 = N5::f(1.0);
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double &fr2 = N6::f(1.0);
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double &fr3 = N7::f(1.0);
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char &cr1 = N5::f('a');
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char &cr2 = N6::f('b');
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}
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// Test merging of declarations within namespaces that themselves were
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// merged without a common first declaration.
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void testMergedMerged() {
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int &ir1 = N8::f(17);
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int &ir2 = N9::f(17);
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int &ir3 = N10::f(17);
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}
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// Test merging when using anonymous namespaces, which does not
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// actually perform any merging.
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void testAnonymousNotMerged() {
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N11::consumeFoo(N11::getFoo()); // expected-error{{cannot initialize a parameter of type 'N11::<anonymous>::Foo *' with an rvalue of type 'N11::<anonymous>::Foo *'}}
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N12::consumeFoo(N12::getFoo()); // expected-error{{cannot initialize a parameter of type 'N12::<anonymous>::Foo *' with an rvalue of type 'N12::<anonymous>::Foo *'}}
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}
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// expected-note@Inputs/namespaces-right.h:60 {{passing argument to parameter here}}
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// expected-note@Inputs/namespaces-right.h:67 {{passing argument to parameter here}}
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// Test that bringing in one name from an overload set does not hide the rest.
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void testPartialImportOfOverloadSet() {
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void (*p)() = N13::p;
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p();
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N13::f(0);
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}
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