rubyx/lib/soml/compiler/function_definition.rb
2015-11-01 19:13:40 +02:00

49 lines
1.3 KiB
Ruby

module Soml
Compiler.class_eval do
def on_function statement
#puts statement.inspect
return_type , name , parameters, kids , receiver = *statement
name = name.to_a.first
raise "Already in method #{@method}" if @method
args = parameters.to_a.collect do |p|
raise "error, argument must be a identifier, not #{p}" unless p.type == :parameter
Parfait::Variable.new( *p)
end
class_method = nil
if(receiver )
if( receiver.first == :self) #class method
class_method = @clazz
@clazz = @clazz.meta
else
raise "Not covered #{receiver}"
end
end
r = @clazz
class_name = @clazz.name
@method = @clazz.get_instance_method( name )
if(@method)
#puts "Warning, redefining method #{name}" unless name == :main
#TODO check args / type compatibility
init_method
else
create_method_for(@clazz, name , args ).init_method
@clazz.add_instance_method @method
end
@method.source = statement
#puts "compile method #{@method.name}"
kids.to_a.each do |ex|
process(ex)
end
@clazz = class_method if class_method
@method = nil
# function definition is a statement, does not return any value
return nil
end
end
end