62 lines
2.4 KiB
Plaintext
62 lines
2.4 KiB
Plaintext
# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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@template
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@imports('textwrap')
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@imports(_from='mozbuild.configure', _import='SandboxDependsFunction')
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def compiler_class(compiler):
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class Compiler(SandboxDependsFunction):
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# Generates a test program and attempts to compile it. In case of
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# failure, the resulting check will return None. If the test program
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# succeeds, it will return the output of the test program.
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# - `includes` are the includes (as file names) that will appear at the
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# top of the generated test program.
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# - `body` is the code that will appear in the main function of the
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# generated test program. `return 0;` is appended to the function
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# body automatically.
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# - `flags` are the flags to be passed to the compiler, in addition to
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# `-c`.
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# - `check_msg` is the message to be printed to accompany compiling the
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# test program.
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def try_compile(self, includes=None, body='', flags=None,
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check_msg=None, when=None, onerror=lambda: None):
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includes = includes or []
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source_lines = ['#include <%s>' % f for f in includes]
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source = '\n'.join(source_lines) + '\n'
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source += textwrap.dedent('''\
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int
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main(void)
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{
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%s
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;
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return 0;
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}
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''' % body)
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if check_msg:
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def checking_fn(fn):
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return checking(check_msg)(fn)
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else:
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def checking_fn(fn):
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return fn
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@depends_when(self, dependable(flags), extra_toolchain_flags, when=when)
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@checking_fn
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def func(compiler, flags, extra_flags):
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flags = flags or []
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flags += extra_flags or []
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flags.append('-c')
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if try_invoke_compiler(
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compiler.wrapper + [compiler.compiler] + compiler.flags,
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compiler.language, source, flags,
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onerror=onerror) is not None:
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return True
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return func
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compiler.__class__ = Compiler
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return compiler
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