namespaces.cpp
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// RUN: rm -rf %t
// RUN: %clang_cc1 -x objective-c++ -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -I %S/Inputs %s -verify
int &global(int);
int &global2(int);
namespace N6 {
char &f(char);
}
namespace N8 { }
namespace LookupBeforeImport {
int &f(int);
}
void testEarly() {
int &r = LookupBeforeImport::f(1);
}
@import namespaces_left;
@import namespaces_right;
void test() {
int &ir1 = N1::f(1);
int &ir2 = N2::f(1);
int &ir3 = N3::f(1);
int &ir4 = global(1);
int &ir5 = ::global2(1);
float &fr1 = N1::f(1.0f);
float &fr2 = N2::f(1.0f);
float &fr3 = global(1.0f);
float &fr4 = ::global2(1.0f);
float &fr5 = LookupBeforeImport::f(1.0f);
double &dr1 = N2::f(1.0);
double &dr2 = N3::f(1.0);
double &dr3 = global(1.0);
double &dr4 = ::global2(1.0);
double &dr5 = LookupBeforeImport::f(1.0);
struct AddAndReexportBeforeImport::S s;
int k = AddAndReexportBeforeImport::S;
}
// Test namespaces merged without a common first declaration.
namespace N5 {
char &f(char);
}
namespace N10 {
int &f(int);
}
void testMerged() {
int &ir1 = N5::f(17);
int &ir2 = N6::f(17);
int &ir3 = N7::f(17);
double &fr1 = N5::f(1.0);
double &fr2 = N6::f(1.0);
double &fr3 = N7::f(1.0);
char &cr1 = N5::f('a');
char &cr2 = N6::f('b');
}
// Test merging of declarations within namespaces that themselves were
// merged without a common first declaration.
void testMergedMerged() {
int &ir1 = N8::f(17);
int &ir2 = N9::f(17);
int &ir3 = N10::f(17);
}
// Test merging when using anonymous namespaces, which does not
// actually perform any merging.
void testAnonymousNotMerged() {
N11::consumeFoo(N11::getFoo()); // expected-error{{cannot initialize a parameter of type 'N11::(anonymous namespace)::Foo *' with an rvalue of type 'N11::(anonymous namespace)::Foo *'}}
N12::consumeFoo(N12::getFoo()); // expected-error{{cannot initialize a parameter of type 'N12::(anonymous namespace)::Foo *' with an rvalue of type 'N12::(anonymous namespace)::Foo *'}}
}
// expected-note@Inputs/namespaces-right.h:60 {{passing argument to parameter here}}
// expected-note@Inputs/namespaces-right.h:67 {{passing argument to parameter here}}
// Test that bringing in one name from an overload set does not hide the rest.
void testPartialImportOfOverloadSet() {
void (*p)() = N13::p;
p();
N13::f(0);
}