31 lines
768 B
Ruby
31 lines
768 B
Ruby
module Ast
|
|
class WhileExpression < Expression
|
|
# attr_reader :condition, :body
|
|
def compile context
|
|
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 |