28 lines
709 B
Ruby
28 lines
709 B
Ruby
module Ast
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class WhileExpression < Expression
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# attr_reader :condition, :body
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def compile context
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into = context.function
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while_block = into.new_block "while"
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ret = while_block.new_block "return"
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into.insert_at while_block
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puts "compiling while condition #{condition}"
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cond_val = condition.compile(context)
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while_block.b ret , condition_code: cond_val.not_operator
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while_block.branch = ret
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last = nil
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body.each do |part|
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puts "compiling in while #{part}"
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last = part.compile(context)
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end
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while_block.b while_block
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puts "compile while end"
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into.insert_at ret
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return last
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end
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end
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end |