rubyx/lib/ast/while_expression.rb

23 lines
675 B
Ruby

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