27a142f2a3
can now go to mom level and add test harness still looks overly complicated, but works first block tests at mom level
65 lines
1.9 KiB
Ruby
65 lines
1.9 KiB
Ruby
module Vool
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class BlockStatement < Statement
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attr_reader :args , :body , :clazz
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def initialize( args , body , clazz = nil)
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@args , @body = args , body
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raise "no bod" unless @body
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@clazz = clazz
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end
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# because of normalization (of send), slot_definition is called first,
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# to assign the block to a variable.
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#
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# This means we do the compiler here (rather than to_mom, which is in
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# fact never called)
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def slot_definition(compiler)
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return Mom::SlotDefinition.new(Mom::BlockConstant.new(parfait_block(compiler)) , [])
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end
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# create a block, a compiler for it, comile the bock and add the compiler(code)
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# to the method compiler for further processing
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def to_mom( compiler )
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parfait_block = self.parfait_block(compiler)
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block_compiler = Risc::BlockCompiler.new( parfait_block , compiler.get_method )
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compiler.add_block_compiler(block_compiler)
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head = body.to_mom( block_compiler )
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block_compiler.add_mom(head)
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block_compiler
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end
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def each(&block)
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block.call(self)
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@body.each(&block)
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end
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def normalize
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BlockStatement.new( @args , @body.normalize)
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end
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# create the parfait block (parfait representation of the block, a Callable similar
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# to CallableMethod)
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def parfait_block(compiler)
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return @parfait_block if @parfait_block
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@parfait_block = compiler.create_block( make_arg_type , make_frame(compiler))
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end
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private
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def make_arg_type( )
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type_hash = {}
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@args.each {|arg| type_hash[arg] = :Object }
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Parfait::NamedList.type_for( type_hash )
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end
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def make_frame(compiler)
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type_hash = {}
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@body.each do |node|
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next unless node.is_a?(LocalVariable) or node.is_a?(LocalAssignment)
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next if compiler.in_scope?(node.name)
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type_hash[node.name] = :Object
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end
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Parfait::NamedList.type_for( type_hash )
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end
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end
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end
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