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Code Issues Projects Releases Packages Wiki Activity Actions 9

Bring Tools/compiler almost up to date. Specifically:

Browse source 
- fix tab space issues (SF patch #101167 by Neil Schemenauer)
- fix co_flags for classes to include CO_NEWLOCALS (SF patch #101145 by Neil)
- fix for merger of UNPACK_LIST and UNPACK_TUPLE into UNPACK_SEQUENCE,
  (SF patch #101168 by, well, Neil :)
- Adjust bytecode MAGIC to current bytecode.

TODO: teach compile.py about list comprehensions.
This commit is contained in:
Thomas Wouters 2000-08-12 20:32:46 +00:00
parent 81f7eb6c6b
commit 46cc7c0f7b
6 changed files with 692 additions and 690 deletions
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44
Lib/compiler/visitor.py
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@ -38,7 +38,7 @@ class ASTVisitor:
def __init__(self):
self.node = None
self._cache = {}
self._cache = {}
def preorder(self, tree, visitor):
"""Do preorder walk of tree using visitor"""
@ -47,7 +47,7 @@ class ASTVisitor:
self._preorder(tree)
def _preorder(self, node, *args):
return apply(self.dispatch, (node,) + args)
return apply(self.dispatch, (node,) + args)
def default(self, node, *args):
for child in node.getChildren():
@ -56,18 +56,18 @@ class ASTVisitor:
def dispatch(self, node, *args):
self.node = node
meth = self._cache.get(node.__class__, None)
className = node.__class__.__name__
if meth is None:
meth = getattr(self.visitor, 'visit' + className, self.default)
self._cache[node.__class__] = meth
meth = self._cache.get(node.__class__, None)
className = node.__class__.__name__
if meth is None:
meth = getattr(self.visitor, 'visit' + className, self.default)
self._cache[node.__class__] = meth
if self.VERBOSE > 0:
if self.VERBOSE == 1:
if meth == 0:
print "dispatch", className
else:
print "dispatch", className, (meth and meth.__name__ or '')
return apply(meth, (node,) + args)
return apply(meth, (node,) + args)
class ExampleASTVisitor(ASTVisitor):
"""Prints examples of the nodes that aren't visited
@ -80,11 +80,11 @@ class ExampleASTVisitor(ASTVisitor):
def dispatch(self, node, *args):
self.node = node
meth = self._cache.get(node.__class__, None)
className = node.__class__.__name__
if meth is None:
meth = getattr(self.visitor, 'visit' + className, 0)
self._cache[node.__class__] = meth
meth = self._cache.get(node.__class__, None)
className = node.__class__.__name__
if meth is None:
meth = getattr(self.visitor, 'visit' + className, 0)
self._cache[node.__class__] = meth
if self.VERBOSE > 1:
print "dispatch", className, (meth and meth.__name__ or '')
if meth:
@ -92,15 +92,15 @@ class ExampleASTVisitor(ASTVisitor):
elif self.VERBOSE > 0:
klass = node.__class__
if not self.examples.has_key(klass):
self.examples[klass] = klass
print
print self.visitor
print klass
for attr in dir(node):
if attr[0] != '_':
print "\t", "%-12.12s" % attr, getattr(node, attr)
print
return apply(self.default, (node,) + args)
self.examples[klass] = klass
print
print self.visitor
print klass
for attr in dir(node):
if attr[0] != '_':
print "\t", "%-12.12s" % attr, getattr(node, attr)
print
return apply(self.default, (node,) + args)
_walker = ASTVisitor
def walk(tree, visitor, verbose=None):