From ff15efef78975abfd96b60165e5c3f6d367e2d12 Mon Sep 17 00:00:00 2001 From: Robert Bradshaw Date: Sat, 17 Jan 2009 00:39:38 -0800 Subject: [PATCH] Verbose code writing metaclass --- Cython/Compiler/Nodes.py | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/Cython/Compiler/Nodes.py b/Cython/Compiler/Nodes.py index b2e3019c..957843bc 100644 --- a/Cython/Compiler/Nodes.py +++ b/Cython/Compiler/Nodes.py @@ -69,11 +69,35 @@ def embed_position(pos, docstring): doc.encoding = encoding return doc + +from Code import CCodeWriter +from types import FunctionType + +def write_func_call(func): + def f(*args, **kwds): + if len(args) > 1 and isinstance(args[1], CCodeWriter): + node, code = args[:2] + code.putln('/* %s.%s %s */' % (node.__class__.__name__, func.__name__, node.pos[1:])) + return func(*args, **kwds) + return f + +class VerboseCodeWriter(type): + # Set this as a metaclass to trace function calls in code. + def __new__(cls, name, bases, attrs): + attrs = dict(attrs) + for mname, m in attrs.items(): + if isinstance(m, FunctionType): + attrs[mname] = write_func_call(m) + return super(VerboseCodeWriter, cls).__new__(cls, name, bases, attrs) + + class Node(object): # pos (string, int, int) Source file position # is_name boolean Is a NameNode # is_literal boolean Is a ConstNode + __metaclass__ = VerboseCodeWriter + is_name = 0 is_literal = 0 temps = None -- 2.26.2