scons_gd/scons/test/Fortran/link-with-cxx.py

#!/usr/bin/env python
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__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"

"""
Verify the smart_link() warning messages used when attempting to link
C++ and Fortran object files, and the ability to suppress them with the
right --warn= options.
"""

import re

import TestSCons

_python_ = TestSCons._python_

test = TestSCons.TestSCons(match = TestSCons.match_re)


test.write('test_linker.py', """\
import sys
if sys.argv[1] == '-o':
    with open(sys.argv[2], 'wb') as ofp:
        for infile in sys.argv[3:]:
            with open(infile, 'rb') as ifp:
                ofp.write(ifp.read())
elif sys.argv[1][:5] == '/OUT:':
    with open(sys.argv[1][5:], 'wb') as ofp:
        for infile in sys.argv[2:]:
            with open(infile, 'rb') as ifp:
                ofp.write(ifp.read())
sys.exit(0)
""")


test.write('test_fortran.py', """\
import sys
with open(sys.argv[2], 'wb') as ofp:
    for infile in sys.argv[4:]:
        with open(infile, 'rb') as ifp:
            ofp.write(ifp.read())
sys.exit(0)
""")


test.write('SConstruct', """
import SCons.Tool.link
def copier(target, source, env):
    s = str(source[0])
    t = str(target[0])
    with open(t, 'wb') as ofp, open(s, 'rb') as ifp:
        ofp.write(ifp.read())

env = Environment(CXX = r'%(_python_)s test_linker.py',
                  CXXCOM = Action(copier),
                  SMARTLINK = SCons.Tool.link.smart_link,
                  LINK = r'$SMARTLINK',
                  LINKFLAGS = '',
                  # We want to re-define this as follows (so as to
                  # not rely on a real Fortran compiler) but can't
                  # because $FORTRANCOM is defined with an extra space
                  # so it ends up as a CommandAction, not a LazyAction.
                  # Must look into changing that after 1.0 is out.
                  #FORTRANCOM = Action(copier))
                  FORTRAN = r'%(_python_)s test_fortran.py')
env.Program('prog1.exe', ['f1.cpp', 'f2.f'])
env.Program('prog2.exe', ['f1.cpp', 'f2.f'])
if ARGUMENTS.get('NO_LINK'):
    # Can remove no-deprecated when we drop Python1.5
    SetOption('warn', ['no-link', 'no-deprecated'])
if ARGUMENTS.get('NO_MIX'):
    # Can remove no-deprecated when we drop Python1.5
    SetOption('warn', ['no-fortran-cxx-mix', 'no-deprecated'])
""" % locals())

test.write('f1.cpp', "f1.cpp\n")
test.write('f2.f', "f2.f\n")

expect = ("""
scons: warning: Using \\$CXX to link Fortran and C\\+\\+ code together.
\tThis may generate a buggy executable if the '%s test_linker.py'
\tcompiler does not know how to deal with Fortran runtimes.
""" % re.escape(_python_)) + TestSCons.file_expr

test.run(arguments = '.', stderr=expect)

test.must_match('prog1.exe', "f1.cpp\nf2.f\n")
test.must_match('prog2.exe', "f1.cpp\nf2.f\n")

test.run(arguments = '-c .', stderr=expect)

test.must_not_exist('prog1.exe')
test.must_not_exist('prog2.exe')

test.run(arguments = '--warning=no-link .')

test.must_match('prog1.exe', "f1.cpp\nf2.f\n")
test.must_match('prog2.exe', "f1.cpp\nf2.f\n")

test.run(arguments = '-c .', stderr=expect)

test.must_not_exist('prog1.exe')
test.must_not_exist('prog2.exe')

test.run(arguments = '--warning=no-fortran-cxx-mix .')

test.must_match('prog1.exe', "f1.cpp\nf2.f\n")
test.must_match('prog2.exe', "f1.cpp\nf2.f\n")

test.run(arguments = '-c .', stderr=expect)

test.must_not_exist('prog1.exe')
test.must_not_exist('prog2.exe')

test.run(arguments = 'NO_LINK=1 .')

test.must_match('prog1.exe', "f1.cpp\nf2.f\n")
test.must_match('prog2.exe', "f1.cpp\nf2.f\n")

test.run(arguments = '-c .', stderr=expect)

test.must_not_exist('prog1.exe')
test.must_not_exist('prog2.exe')

test.run(arguments = 'NO_MIX=1 .')

test.must_match('prog1.exe', "f1.cpp\nf2.f\n")
test.must_match('prog2.exe', "f1.cpp\nf2.f\n")

test.pass_test()

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