I'm trying to add support to the AST compiler for decorators. I'm
stuck in trying to represent them in ASDL. This is what I currently
have:
stmt = FunctionDef(decorator* decorators, identifier name,
arguments args, stmt* body)
| ...
decorator = (identifier name, arglist* args)
arglist = ArgList(expr* args, keyword* keywords, expr? starargs,
expr? kwargs)
Although I have quite a bit of the implementation done, I don't like
the ArgList node. Perhaps this would be better:
stmt = FunctionDef(decorator* decorators, identifier name,
arguments args, stmt* body)
| ...
expr = CallExpr(call c)
| ...
decorator = DecoratorName(identifier name)
| DecoratorCall(call c)
call = Call(expr func, expr* args, keyword* keywords,
expr? starargs, expr? kwargs)
A decorator call is basically a function call, the only difference
being that the func expression must be a dotted_name. The second
definition seems fairly clumsy as well. Any advice?
Neil
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