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use factory functions consistently to create instructions

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This commit is contained in:
Torsten Ruger
2016-12-28 19:01:58 +02:00
parent 4cf732d395
commit 9cf56b3aa6
13 changed files with 44 additions and 33 deletions
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10
lib/register/instructions/function_call.rb
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@ -4,7 +4,7 @@ module Register
# assembly takes care of the rest (ie getting the address)
class FunctionCall < Instruction
def initialize source , method
def initialize( source , method )
super(source)
@method = method
end
@ -15,13 +15,17 @@ module Register
end
end
def self.function_call( source , method )
Register::FunctionCall.new( source , method )
end
def self.issue_call( compiler , callee )
return_label = Label.new("_return_label #{callee.name}" , "#{compiler.type.object_class.name}.#{compiler.method.name}" )
return_label = Register.label("_return_label #{callee.name}" , "#{compiler.type.object_class.name}.#{compiler.method.name}" )
ret_tmp = compiler.use_reg(:Label)
compiler.add_code Register.load_constant("#{callee.name} load ret", return_label , ret_tmp)
compiler.add_code Register.reg_to_slot("#{callee.name} store ret", ret_tmp , :new_message , :return_address)
compiler.add_code Register.transfer("#{callee.name} move new message", Register.new_message_reg , Register.message_reg )
compiler.add_code FunctionCall.new( "#{callee.name} call" , callee )
compiler.add_code Register.function_call( "#{callee.name} call" , callee )
compiler.add_code return_label
compiler.add_code Register.transfer("#{callee.name} remove new message", Register.message_reg , Register.new_message_reg )
compiler.add_code Register.slot_to_reg("#{callee.name} restore message" , :new_message , :caller , :message )