rubyx/lib/ast/while_expression.rb

34 lines
824 B
Ruby

module Ast
class WhileExpression < Expression
# attr_reader :condition, :body
def compile frame , method
Virtual::Reference.new
end
def old
into = context.function
ret = into.new_block "while_end"
while_block = into.new_block "while_start"
into.insert_at while_block
puts "compiling while condition #{condition}"
cond_val = condition.compile(context)
into.b ret , condition_code: cond_val.not_operator
into.insertion_point.branch = ret
last = nil
body.each do |part|
puts "compiling in while #{part}"
last = part.compile(context)
end
into.b while_block
into.insertion_point.branch = while_block
puts "compile while end"
into.insert_at ret
return last
end
end
end