1 // Tests for module-declaration syntax. 2 // 3 // RUN: rm -rf %t 4 // RUN: mkdir %t 5 // RUN: split-file %s %t 6 // 7 // RUN: %clang_cc1 -std=c++20 -emit-module-interface %t/x.cppm -o %t/x.pcm 8 // RUN: %clang_cc1 -std=c++20 -emit-module-interface -fmodule-file=x=%t/x.pcm %t/x.y.cppm -o %t/x.y.pcm 9 // 10 // Module implementation for unknown and known module. (The former is ill-formed.) 11 // RUN: %clang_cc1 -std=c++20 -I%t -fmodule-file=x.y=%t/x.y.pcm -verify -x c++ %t/M1.cpp 12 // RUN: %clang_cc1 -std=c++20 -I%t -fmodule-file=x=%t/x.pcm -fmodule-file=x.y=%t/x.y.pcm -verify -x c++ %t/M2.cpp 13 // 14 // Module interface for unknown and known module. (The latter is ill-formed due to 15 // redefinition.) 16 // RUN: %clang_cc1 -std=c++20 -I%t -fmodule-file=x.y=%t/x.y.pcm -verify %t/M3.cpp 17 // RUN: %clang_cc1 -std=c++20 -I%t -fmodule-file=x.y=%t/x.y.pcm -verify %t/M4.cpp 18 // 19 // Miscellaneous syntax. 20 // RUN: %clang_cc1 -std=c++20 -I%t -fmodule-file=x.y=%t/x.y.pcm -verify %t/M5.cpp 21 // RUN: %clang_cc1 -std=c++20 -I%t -fmodule-file=x.y=%t/x.y.pcm -verify %t/M6.cpp 22 // RUN: %clang_cc1 -std=c++20 -I%t -fmodule-file=x.y=%t/x.y.pcm -verify %t/M7.cpp 23 // RUN: %clang_cc1 -std=c++20 -I%t -fmodule-file=x.y=%t/x.y.pcm -verify %t/M8.cpp 24 25 //--- x.cppm 26 export module x; 27 int a, b; 28 29 //--- x.y.cppm 30 export module x.y; 31 int c; 32 33 //--- M1.cpp 34 module z; // expected-error {{module 'z' not found}} 35 36 //--- M2.cpp 37 module x; // expected-no-diagnostics 38 39 //--- M3.cpp 40 export module z; // expected-no-diagnostics 41 42 //--- M4.cpp 43 export module x; // expected-no-diagnostics 44 45 //--- M5.cpp 46 export module z elderberry; // expected-error {{expected ';'}} expected-error {{a type specifier is required}} 47 48 //--- M6.cpp 49 export module z [[]]; // expected-no-diagnostics 50 51 //--- M7.cpp 52 export module z [[fancy]]; // expected-warning {{unknown attribute 'fancy' ignored}} 53 54 //--- M8.cpp 55 export module z [[maybe_unused]]; // expected-error-re {{'maybe_unused' attribute cannot be applied to a module{{$}}}} 56