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* New feature <relevant> which is automatically deduced in most cases. * Features which are not relevant do not affect target paths and do not prevent merging of virtual targets. * generators.jam: generator.run always returns usage-requirements to allow usage-requirements in non-top-level generators. This is necessary because we're using usage-requirements to track relevance from flags. * New rule toolset.uses-features to specify features that the rule checks manually, instead of using toolset.flags. In the future, we should consider restricting the properties actually passed, to detect errors. * Adjust tests to handle the new paths (verified by inspection). * Add temporary option --ignore-relevance to consider all features relevant to aid migration. * New rule property.evaluate-conditional-relevance which helps tracking relevance in <conditional>. * Widely scattered changes to use the new interfaces.
117 lines
3.9 KiB
Plaintext
117 lines
3.9 KiB
Plaintext
# Copyright 2002-2017 Rene Rivera
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# Copyright 2002-2017 Vladimir Prus
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# Distributed under the Boost Software License, Version 1.0.
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# (See 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 "class" : new ;
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import generators ;
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import project ;
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import targets ;
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# The generator class for libraries (target type LIB). Depending on properties
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# it will request building of the appropriate specific library type --
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# -- SHARED_LIB, STATIC_LIB or SHARED_LIB.
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#
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class lib-generator : generator
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{
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rule __init__ ( * : * )
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{
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generator.__init__ $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8)
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: $(9) : $(10) : $(11) : $(12) : $(13) : $(14) : $(15) : $(16) :
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$(17) : $(18) : $(19) ;
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}
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rule run ( project name ? : property-set : sources * )
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{
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# The lib generator is composing, and can be only invoked with an
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# explicit name. This check is present in generator.run (and so in
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# builtin.linking-generator) but duplicated here to avoid doing extra
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# work.
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if $(name)
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{
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local properties = [ $(property-set).raw ] ;
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# Determine the needed target type.
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local actual-type ;
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# <source>files can be generated by <conditional>@rule feature
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# in which case we do not consider it a SEARCHED_LIB type.
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if ! <source> in $(properties:G) &&
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( <search> in $(properties:G) || <name> in $(properties:G) )
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{
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actual-type = SEARCHED_LIB ;
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}
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else if <file> in $(properties:G)
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{
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actual-type = LIB ;
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}
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else if <link>shared in $(properties)
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{
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actual-type = SHARED_LIB ;
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}
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else
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{
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actual-type = STATIC_LIB ;
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}
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property-set = [ $(property-set).add-raw <main-target-type>LIB ] ;
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# Construct the target.
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local result = [ generators.construct $(project) $(name) : $(actual-type)
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: $(property-set) : $(sources) ] ;
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return [ $(result[1]).add-raw <relevant>link ] $(result[2-]) ;
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}
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}
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rule viable-source-types ( )
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{
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return * ;
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}
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}
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generators.register [ new lib-generator builtin.lib-generator : : LIB ] ;
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# The implementation of the 'lib' rule. Beyond standard syntax that rule allows
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# simplified: "lib a b c ;".
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#
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rule lib ( names + : sources * : requirements * : default-build * :
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usage-requirements * )
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{
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if $(names[2])
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{
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if <name> in $(requirements:G)
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{
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errors.user-error "When several names are given to the 'lib' rule" :
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"it is not allowed to specify the <name> feature." ;
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}
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if $(sources)
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{
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errors.user-error "When several names are given to the 'lib' rule" :
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"it is not allowed to specify sources." ;
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}
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}
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# This is a circular module dependency so it must be imported here.
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import targets ;
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local project = [ project.current ] ;
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local result ;
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for local name in $(names)
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{
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local r = $(requirements) ;
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# Support " lib a ; " and " lib a b c ; " syntax.
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if ! $(sources) && ! <name> in $(requirements:G)
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&& ! <file> in $(requirements:G)
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{
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r += <name>$(name) ;
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}
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result += [ targets.main-target-alternative
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[ new typed-target $(name) : $(project) : LIB
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: [ targets.main-target-sources $(sources) : $(name) ]
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: [ targets.main-target-requirements $(r) : $(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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return $(result) ;
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}
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IMPORT $(__name__) : lib : : lib ;
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