def test_Preprocess_small_cxx_program():
"""Test pre-processing a small C++ program."""
assert clang.Preprocess("""
#define FOO T
template<typename FOO>
FOO foobar(const T& a) {return a;}
int foo() { return foobar<int>(10); }
""",
copts=['-xc++']).endswith("""
template<typename T>
T foobar(const T& a) {return a;}
int foo() { return foobar<int>(10); }
""")
def ClangPreprocess(text: str) -> str:
try:
return clang.StripPreprocessorLines(
clanglib.Preprocess(text, CLANG_ARGS))
except llvm.LlvmError as e:
raise errors.ClangException(str(e.stderr[:1024]))
def test_Preprocess_missing_include():
"""Test that Preprocessor error is raised on missing #include."""
with pytest.raises(clang.ClangException) as e_info:
clang.Preprocess('#include "my-missing-file.h"')
assert "'my-missing-file.h' file not found" in str(e_info)
def test_Preprocess_empty_input():
"""Test that Preprocess accepts an empty input."""
assert _StripPreprocessorLines(clang.Preprocess('')) == '\n'