76 lines
1.7 KiB
Ruby
76 lines
1.7 KiB
Ruby
module Mutant
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# A method object for inserting an AST into the Rubinius VM
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#
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# The idea is to split the steps for a mutation into documented
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# methods. Also subclasses can override the steps. Also passing
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# around the root node is not needed with a method object.
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#
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# As the initializer does the work there is no need for the
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# instances of this class to be used outside of this class, hence
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# the Loader.new method is private and the Loader.run method
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# returns self.
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#
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class Loader
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extend MethodObject
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private
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# Initialize and insert mutation into vm
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#
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# @param [Rubinius::AST::Script] root
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#
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# @return [undefined]
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#
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# @api private
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#
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def initialize(root)
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@root = Helper.deep_clone(root)
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Rubinius.run_script(compiled_code)
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end
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# Return compiled code
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#
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# @return [Rubinius::CompiledCode]
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#
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# @api private
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#
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# FIXME: rbx on travis is older than on my devbox.
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#
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def compiled_code
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_script = script
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_script.respond_to?(:compiled_code) ? _script.compiled_code : _script.compiled_method
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end
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# Return code script
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#
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# @return [Rubinius::CompiledCode::Script]
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#
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# @api private
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#
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def script
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compiled_code_raw.create_script
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end
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# Return compiled code for node
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#
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# @return [Rubinius::CompiledCode]
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#
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# @api private
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#
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def compiled_code_raw
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compiler.run
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end
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# Return compiler loaded with mutated ast
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#
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# @return [Rubinius::Compiler]
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#
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# @api private
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#
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def compiler
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Rubinius::Compiler.new(:bytecode, :compiled_method).tap do |compiler|
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compiler.generator.input(@root)
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end
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end
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end
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end
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