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c61c1fb813
Build 211 can build most things, but I've seen intermittent miscompilation and slower code. Also it comes from Xcode 4.2, so most people don't have it anyway. Let's use 218 as the minimum viable version.
76 lines
1.3 KiB
Ruby
76 lines
1.3 KiB
Ruby
class Compiler < Struct.new(:name, :priority)
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def build
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case name
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when :clang, :llvm
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MacOS.send("#{name}_build_version")
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when :gcc
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MacOS.gcc_42_build_version
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end
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end
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end
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class CompilerFailure
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attr_reader :compiler
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def initialize compiler, &block
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@compiler = compiler
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instance_eval(&block) if block_given?
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@build ||= 9999
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end
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def build val=nil
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val.nil? ? @build.to_i : @build = val.to_i
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end
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def cause val=nil
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val.nil? ? @cause : @cause = val
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end
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end
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class CompilerQueue
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def initialize
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@array = []
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end
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def <<(o)
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@array << o
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self
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end
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def pop
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@array.delete(@array.max { |a, b| a.priority <=> b.priority })
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end
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def empty?
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@array.empty?
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end
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end
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class CompilerSelector
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def initialize(f, old_compiler=ENV.compiler)
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@f = f
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@old_compiler = old_compiler
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@compilers = CompilerQueue.new
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%w{clang llvm gcc}.map(&:to_sym).each do |cc|
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@compilers << Compiler.new(cc, priority_for(cc))
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end
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end
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def compiler
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begin
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cc = @compilers.pop
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end while @f.fails_with?(cc)
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cc.nil? ? @old_compiler : cc.name
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end
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private
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def priority_for(cc)
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case cc
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when :clang then MacOS.clang_build_version >= 318 ? 3 : 0.5
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when :llvm then 2
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when :gcc then 1
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end
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end
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end
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