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6c0e60e884
This is the first in a series of patches that introduce C++20 importable
header units.
These differ from clang header modules in that:
(a) they are identifiable by an internal name
(b) they represent the top level source for a single header - although
that might include or import other headers.
We name importable header units with the path by which they are specified
(although that need not be the absolute path for the file).
So "foo/bar.h" would have a name "foo/bar.h". Header units are made a
separate module type so that we can deal with diagnosing places where they
are permitted but a named module is not.
Differential Revision: https://reviews.llvm.org/D121095
105 lines
3.0 KiB
C++
105 lines
3.0 KiB
C++
// Test generation and import of simple C++20 Header Units.
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// RUN: rm -rf %t
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// RUN: mkdir -p %t
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// RUN: split-file %s %t
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// RUN: %clang_cc1 -std=c++20 -emit-header-unit -xc++-header %t/hu-01.h \
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// RUN: -o %t/hu-01.pcm
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// RUN: %clang_cc1 -std=c++20 -module-file-info %t/hu-01.pcm | \
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// RUN: FileCheck --check-prefix=CHECK-HU %s -DTDIR=%t
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// RUN: %clang_cc1 -std=c++20 -emit-module-interface %t/imp-hu-01.cpp \
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// RUN: -fmodule-file=%t/hu-01.pcm -o %t/B.pcm -Rmodule-import 2>&1 | \
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// RUN: FileCheck --check-prefix=CHECK-IMP %s -DTDIR=%t
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// RUN: %clang_cc1 -std=c++20 -emit-module-interface %t/imp-hu-02.cpp \
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// RUN: -fmodule-file=%t/hu-01.pcm -o %t/C.pcm -Rmodule-import 2>&1 | \
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// RUN: FileCheck --check-prefix=CHECK-GMF-IMP %s -DTDIR=%t
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// RUN: %clang_cc1 -std=c++20 -emit-header-unit -xc++-header %t/hu-02.h \
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// RUN: -o %t/hu-02.pcm
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// RUN: %clang_cc1 -std=c++20 -emit-module-interface %t/imp-hu-03.cpp \
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// RUN: -fmodule-file=%t/hu-01.pcm -fmodule-file=%t/hu-02.pcm -o %t/D.pcm \
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// RUN: -Rmodule-import 2>&1 | \
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// RUN: FileCheck --check-prefix=CHECK-BOTH %s -DTDIR=%t
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// RUN: %clang_cc1 -std=c++20 -emit-header-unit -xc++-header %t/hu-03.h \
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// RUN: -fmodule-file=%t/hu-01.pcm -o %t/hu-03.pcm
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// RUN: %clang_cc1 -std=c++20 -module-file-info %t/hu-03.pcm | \
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// RUN: FileCheck --check-prefix=CHECK-HU-HU %s -DTDIR=%t
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// RUN: %clang_cc1 -std=c++20 -emit-module-interface %t/imp-hu-04.cpp \
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// RUN: -fmodule-file=%t/hu-03.pcm -o %t/E.pcm -Rmodule-import 2>&1 | \
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// RUN: FileCheck --check-prefix=CHECK-NESTED %s -DTDIR=%t
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//--- hu-01.h
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int foo(int);
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// CHECK-HU: ====== C++20 Module structure ======
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// CHECK-HU-NEXT: Header Unit '[[TDIR]]/hu-01.h' is the Primary Module at index #1
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//--- imp-hu-01.cpp
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export module B;
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import "hu-01.h";
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int bar(int x) {
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return foo(x);
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}
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// CHECK-IMP: remark: importing module '[[TDIR]]/hu-01.h' from '[[TDIR]]/hu-01.pcm'
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// expected-no-diagnostics
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//--- imp-hu-02.cpp
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module;
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import "hu-01.h";
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export module C;
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int bar(int x) {
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return foo(x);
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}
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// CHECK-GMF-IMP: remark: importing module '[[TDIR]]/hu-01.h' from '[[TDIR]]/hu-01.pcm'
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// expected-no-diagnostics
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//--- hu-02.h
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int baz(int);
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//--- imp-hu-03.cpp
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module;
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export import "hu-01.h";
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export module D;
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import "hu-02.h";
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int bar(int x) {
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return foo(x) + baz(x);
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}
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// CHECK-BOTH: remark: importing module '[[TDIR]]/hu-01.h' from '[[TDIR]]/hu-01.pcm'
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// CHECK-BOTH: remark: importing module '[[TDIR]]/hu-02.h' from '[[TDIR]]/hu-02.pcm'
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// expected-no-diagnostics
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//--- hu-03.h
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export import "hu-01.h";
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int baz(int);
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// CHECK-HU-HU: ====== C++20 Module structure ======
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// CHECK-HU-HU-NEXT: Header Unit '[[TDIR]]/hu-03.h' is the Primary Module at index #2
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// CHECK-HU-HU-NEXT: Exports:
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// CHECK-HU-HU-NEXT: Header Unit '[[TDIR]]/hu-01.h' is at index #1
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// expected-no-diagnostics
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//--- imp-hu-04.cpp
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module;
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import "hu-03.h";
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export module E;
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int bar(int x) {
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return foo(x) + baz(x);
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}
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// CHECK-NESTED: remark: importing module '[[TDIR]]/hu-03.h' from '[[TDIR]]/hu-03.pcm'
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// expected-no-diagnostics
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