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63 lines
1.9 KiB
Plaintext
63 lines
1.9 KiB
Plaintext
# Copyright (c) 2009 Vladimir Prus
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#
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# Use, modification and distribution is subject to the Boost Software
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# License Version 1.0. (See accompanying file LICENSE_1_0.txt or
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# http://www.boost.org/LICENSE_1_0.txt)
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# Implements 'convert' target that takes a bunch of source and
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# tries to convert each one to the specified type.
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#
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# For example:
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#
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# convert objects obj : a.cpp b.cpp ;
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#
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import targets ;
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import generators ;
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import project ;
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import type ;
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import "class" : new ;
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class convert-target-class : typed-target
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{
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rule __init__ ( name : project : type
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: sources * : requirements * : default-build * : usage-requirements * )
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{
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typed-target.__init__ $(name) : $(project) : $(type)
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: $(sources) : $(requirements) : $(default-build) : $(usage-requirements) ;
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}
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rule construct ( name : source-targets * : property-set )
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{
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local r = [ generators.construct $(self.project) : $(self.type)
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: [ property-set.create [ $(property-set).raw ] # [ feature.expand
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<main-target-type>$(self.type) ]
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# ]
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: $(source-targets) ] ;
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if ! $(r)
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{
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errors.error "unable to construct" [ full-name ] ;
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}
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return $(r) ;
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}
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}
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rule convert ( name type : sources * : requirements * : default-build *
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: usage-requirements * )
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{
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local project = [ project.current ] ;
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# This is a circular module dependency, so it must be imported here
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modules.import targets ;
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targets.main-target-alternative
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[ new convert-target-class $(name) : $(project) : [ type.type-from-rule-name $(type) ]
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: [ targets.main-target-sources $(sources) : $(name) ]
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: [ targets.main-target-requirements $(requirements) : $(project) ]
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: [ targets.main-target-default-build $(default-build) : $(project) ]
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: [ targets.main-target-usage-requirements $(usage-requirements) : $(project) ]
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] ;
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}
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IMPORT $(__name__) : convert : : convert ;
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