Create unit test for C++ modules and accept ixx as C++ source extension.

mesonbuild/compilers/compilers.py

@@ -55,7 +55,7 @@ lib_suffixes = ('a', 'lib', 'dll', 'dll.a', 'dylib', 'so')  # type: T.Tuple[str,
 # This means we can't include .h headers here since they could be C, C++, ObjC, etc.
 lang_suffixes = {
     'c': ('c',),
-    'cpp': ('cpp', 'cc', 'cxx', 'c++', 'hh', 'hpp', 'ipp', 'hxx', 'ino'),
+    'cpp': ('cpp', 'cc', 'cxx', 'c++', 'hh', 'hpp', 'ipp', 'hxx', 'ino', 'ixx'),
     'cuda': ('cu',),
     # f90, f95, f03, f08 are for free-form fortran ('f90' recommended)
     # f, for, ftn, fpp are for fixed-form fortran ('f' or 'for' recommended)

test cases/unit/87 cpp modules/main.cpp

@@ -0,0 +1,7 @@
+import M0;
+#include<cstdio>
+
+int main() {
+    printf("The value is %d", func0());
+    return 0;
+}

test cases/unit/87 cpp modules/meson.build

@@ -0,0 +1,17 @@
+project('cppmodules', 'cpp', default_options: ['cpp_std=c++latest'])
+
+e = executable('modtest',
+    'main.cpp',
+    'src0.ixx',
+    'src1.ixx',
+    'src2.ixx',
+    'src3.ixx',
+    'src4.ixx',
+    'src5.ixx',
+    'src6.ixx',
+    'src7.ixx',
+    'src8.ixx',
+    'src9.ixx',
+    )
+
+test('modtest', e)

test cases/unit/87 cpp modules/src0.ixx

@@ -0,0 +1,7 @@
+export module M0;
+
+import M1;
+
+export int func0() {
+  return func1();
+}

test cases/unit/87 cpp modules/src1.ixx

@@ -0,0 +1,7 @@
+export module M1;
+
+import M2;
+
+export int func1() {
+  return func2();
+}

test cases/unit/87 cpp modules/src2.ixx

@@ -0,0 +1,7 @@
+export module M2;
+
+import M3;
+
+export int func2() {
+  return func3();
+}

test cases/unit/87 cpp modules/src3.ixx

@@ -0,0 +1,7 @@
+export module M3;
+
+import M4;
+
+export int func3() {
+  return func4();
+}

test cases/unit/87 cpp modules/src4.ixx

@@ -0,0 +1,7 @@
+export module M4;
+
+import M5;
+
+export int func4() {
+  return func5();
+}

test cases/unit/87 cpp modules/src5.ixx

@@ -0,0 +1,7 @@
+export module M5;
+
+import M6;
+
+export int func5() {
+  return func6();
+}

test cases/unit/87 cpp modules/src6.ixx

@@ -0,0 +1,7 @@
+export module M6;
+
+import M7;
+
+export int func6() {
+  return func7();
+}

test cases/unit/87 cpp modules/src7.ixx

@@ -0,0 +1,7 @@
+export module M7;
+
+import M8;
+
+export int func7() {
+  return func8();
+}

test cases/unit/87 cpp modules/src8.ixx

@@ -0,0 +1,7 @@
+export module M8;
+
+import M9;
+
+export int func8() {
+  return func9();
+}

test cases/unit/87 cpp modules/src9.ixx

@@ -0,0 +1,5 @@
+export module M9;
+
+export int func9() {
+  return 42;
+}