rubyx/lib/ruby/method_statement.rb
Torsten Rüger 3df54910cc rename singleton_class to single_class and misc
was clashing with real ruby method name
also many superclass mismatch fixes
some misc
2019-09-24 17:25:19 +03:00

47 lines
1.5 KiB
Ruby

module Ruby
class MethodStatement < Statement
attr_reader :name, :args , :body
def initialize( name , args , body)
@name , @args , @body = name , args , body
raise "no bod" unless @body
end
# At the moment normalizing means creating implicit returns for some cases
# see replace_return for details.
def normalized_body
return replace_return( @body ) unless @body.is_a?(Statements)
body = Statements.new( @body.statements.dup )
body << replace_return( body.pop )
end
def to_vool
body = normalized_body
Vool::MethodExpression.new( @name , @args.dup , body.to_vool)
end
def replace_return(statement)
case statement
when SendStatement , YieldStatement, Variable , Constant
return ReturnStatement.new( statement )
when IvarAssignment
ret = ReturnStatement.new( InstanceVariable.new(statement.name) )
return Statements.new([statement , ret])
when LocalAssignment
ret = ReturnStatement.new( LocalVariable.new(statement.name) )
return Statements.new([statement , ret])
when ReturnStatement , IfStatement , WhileStatement ,RubyBlockStatement
return statement
else
raise "Not implemented implicit return #{statement.class}"
end
end
def to_s(depth = 0)
arg_str = @args.collect{|a| a.to_s}.join(', ')
at_depth(depth , "def #{name}(#{arg_str})\n #{@body.to_s(1)}\nend")
end
end
end