71 lines
2.0 KiB
Python
71 lines
2.0 KiB
Python
#!/usr/bin/python
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# Copyright 2006 Vladimir Prus.
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# Copyright Nikita Kniazev 2020.
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# Distributed under the Boost Software License, Version 1.0. (See
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# accompanying file LICENSE_1_0.txt or copy at
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# http://www.boost.org/LICENSE_1_0.txt)
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import BoostBuild
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from time import sleep
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t = BoostBuild.Tester()
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t.write("jamroot.jam", """
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import pch ;
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project : requirements <warnings-as-errors>on ;
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cpp-pch pch : pch.hpp : <toolset>msvc:<source>pch.cpp <include>. ;
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cpp-pch pch-afx : pch.hpp : <define>HELLO <toolset>msvc:<source>pch.cpp <include>. ;
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exe hello : hello.cpp pch : <include>. ;
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exe hello-afx : hello-afx.cpp pch-afx : <define>HELLO <include>. ;
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""")
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pch_content = """\
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#undef HELLO
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class TestClass
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{
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public:
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TestClass( int, int ) {}
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};
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"""
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t.write("pch.hpp", pch_content)
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t.write("pch.cpp", """#include <pch.hpp>
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""")
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toolset = BoostBuild.get_toolset()
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# Clang with posix interface always include everything in source files
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if not toolset.startswith('clang') or toolset.startswith('clang-win'):
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include = '#include <pch.hpp>'
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else:
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include = ''
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for name in ("hello.cpp", "hello-afx.cpp"):
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t.write(name, include + """
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int main() { TestClass c(1, 2); }
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""")
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t.run_build_system()
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t.expect_addition("bin/$toolset/debug*/hello.exe")
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t.expect_addition("bin/$toolset/debug*/hello-afx.exe")
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# Now make the header unusable, replace its content with some garbage, but
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# preserve the size and timestamp to fool the compiler. If everything is OK,
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# B2 will not recreate PCH, and compiler will happily use pre-compiled
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# header, not noticing that the real header is bad.
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s = "THIS WILL NOT COMPILE. "
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t.write("pch.hpp.bad", s + (len(pch_content) - len(s)) * 'x')
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t.copy_timestamp("pch.hpp", "pch.hpp.bad")
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t.copy_preserving_timestamp("pch.hpp.bad", "pch.hpp")
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t.rm("bin/$toolset/debug*/hello.obj")
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t.rm("bin/$toolset/debug*/hello-afx.obj")
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t.run_build_system()
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t.expect_addition("bin/$toolset/debug*/hello.obj")
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t.expect_addition("bin/$toolset/debug*/hello-afx.obj")
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t.cleanup()
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