http://llvm.org/bugs/show_bug.cgi?id=21216
Bug ID: 21216
Summary: Module silently not created if contains missing file
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Modules
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
No warning is emitted if a module lists a missing file:
$ cat include/foo.map
module foo {
requires cplusplus
header "foo.h"
header "does_not_exist.h"
}
$ clang++ -E -fmodules -fmodule-map-file=include/foo.map -I include
-Weverything -pedantic test.cpp
# 1 "test.cpp"
# 1 "<built-in>" 1
# 1 "<built-in>" 3
# 318 "<built-in>" 3
# 1 "<command line>" 1
# 1 "<built-in>" 2
# 1 "test.cpp" 2
# 1 "include/foo.h" 1
static inline int foo() { return 1; }
# 3 "test.cpp" 2
int main(int, char **) {
return 0;
}
$ cat include/foo.map
module foo {
requires cplusplus
header "foo.h"
}
$ clang++ -E -fmodules -fmodule-map-file=include/foo.map -I include
-Weverything -pedantic test.cpp
# 1 "test.cpp"
# 1 "<built-in>" 1
# 1 "<built-in>" 3
# 318 "<built-in>" 3
# 1 "<command line>" 1
# 1 "<built-in>" 2
# 1 "test.cpp" 2
<module-includes>:1:1: warning: header 'include/foo.map' is included in module
'foo' but not listed in module map [-Wincomplete-module]
#include "include/foo.h"
^
@import foo; /* clang -E: implicit import for "include/foo.h" */
int main(int, char **) {
return 0;
}
1 warning generated.
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