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Speed up with statements by storing the __exit__ method on the stack instead of in a temp variable (bumps the magic number for pyc files)

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Nick Coghlan 2008-03-07 14:13:28 +00:00
parent e75f59a578
commit 7af53be66f
6 changed files with 77 additions and 55 deletions
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5
Lib/compiler/pycodegen.py
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@ -822,14 +822,13 @@ class CodeGenerator:
def visitWith(self, node):
body = self.newBlock()
final = self.newBlock()
exitvar = "$exit%d" % self.__with_count
valuevar = "$value%d" % self.__with_count
self.__with_count += 1
self.set_lineno(node)
self.visit(node.expr)
self.emit('DUP_TOP')
self.emit('LOAD_ATTR', '__exit__')
self._implicitNameOp('STORE', exitvar)
self.emit('ROT_TWO')
self.emit('LOAD_ATTR', '__enter__')
self.emit('CALL_FUNCTION', 0)
if node.vars is None:
@ -849,8 +848,6 @@ class CodeGenerator:
self.emit('LOAD_CONST', None)
self.nextBlock(final)
self.setups.push((END_FINALLY, final))
self._implicitNameOp('LOAD', exitvar)
self._implicitNameOp('DELETE', exitvar)
self.emit('WITH_CLEANUP')
self.emit('END_FINALLY')
self.setups.pop()