mapnik/scons/scons-local-3.0.1/SCons/Tool/midl.py

"""SCons.Tool.midl

Tool-specific initialization for midl (Microsoft IDL compiler).

There normally shouldn't be any need to import this module directly.
It will usually be imported through the generic SCons.Tool.Tool()
selection method.

"""

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__revision__ = "src/engine/SCons/Tool/midl.py 74b2c53bc42290e911b334a6b44f187da698a668 2017/11/14 13:16:53 bdbaddog"

import SCons.Action
import SCons.Builder
import SCons.Defaults
import SCons.Scanner.IDL
import SCons.Util

from .MSCommon import msvc_exists

def midl_emitter(target, source, env):
    """Produces a list of outputs from the MIDL compiler"""
    base, _ = SCons.Util.splitext(str(target[0]))
    tlb = target[0]
    incl = base + '.h'
    interface = base + '_i.c'
    targets = [tlb, incl, interface]

    midlcom = env['MIDLCOM']

    if midlcom.find('/proxy') != -1:
        proxy = base + '_p.c'
        targets.append(proxy)
    if midlcom.find('/dlldata') != -1:
        dlldata = base + '_data.c'
        targets.append(dlldata)

    return (targets, source)

idl_scanner = SCons.Scanner.IDL.IDLScan()

midl_action = SCons.Action.Action('$MIDLCOM', '$MIDLCOMSTR')

midl_builder = SCons.Builder.Builder(action = midl_action,
                                     src_suffix = '.idl',
                                     suffix='.tlb',
                                     emitter = midl_emitter,
                                     source_scanner = idl_scanner)

def generate(env):
    """Add Builders and construction variables for midl to an Environment."""

    env['MIDL']          = 'MIDL.EXE'
    env['MIDLFLAGS']     = SCons.Util.CLVar('/nologo')
    env['MIDLCOM']       = '$MIDL $MIDLFLAGS /tlb ${TARGETS[0]} /h ${TARGETS[1]} /iid ${TARGETS[2]} /proxy ${TARGETS[3]} /dlldata ${TARGETS[4]} $SOURCE 2> NUL'
    env['BUILDERS']['TypeLibrary'] = midl_builder

def exists(env):
    return msvc_exists()

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