Commit db2dd527 authored by Robert Bradshaw's avatar Robert Bradshaw

Cleaner code annotation

parent ff15efef
......@@ -510,6 +510,7 @@ class CCodeWriter(object):
self.funcstate = None
self.level = 0
self.call_level = 0
self.bol = 1
if create_from is None:
# Root CCodeWriter
......@@ -523,6 +524,7 @@ class CCodeWriter(object):
if copy_formatting:
self.level = create_from.level
self.bol = create_from.bol
self.call_level = create_from.call_level
if emit_linenums is None:
self.emit_linenums = self.globalstate.emit_linenums
else:
......
......@@ -76,13 +76,33 @@ from types import FunctionType
def write_func_call(func):
def f(*args, **kwds):
if len(args) > 1 and isinstance(args[1], CCodeWriter):
# here we annotate the code with this function call
# but only if new code is generated
node, code = args[:2]
code.putln('/* %s.%s %s */' % (node.__class__.__name__, func.__name__, node.pos[1:]))
marker = ' /* %s -> %s.%s %s */' % (
' ' * code.call_level,
node.__class__.__name__,
func.__name__,
node.pos[1:])
pristine = code.buffer.stream.tell()
code.putln(marker)
start = code.buffer.stream.tell()
code.call_level += 4
res = func(*args, **kwds)
code.call_level -= 4
if start == code.buffer.stream.tell():
code.buffer.stream.seek(pristine)
else:
marker = marker.replace('->', '<-')
code.putln(marker)
return res
else:
return func(*args, **kwds)
return f
class VerboseCodeWriter(type):
# Set this as a metaclass to trace function calls in code.
# This slows down code generation and makes much larger files.
def __new__(cls, name, bases, attrs):
attrs = dict(attrs)
for mname, m in attrs.items():
......
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