diff options
Diffstat (limited to 'Lib/compiler/pycodegen.py')
| -rw-r--r-- | Lib/compiler/pycodegen.py | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/Lib/compiler/pycodegen.py b/Lib/compiler/pycodegen.py index e67b2ef..dc2be32 100644 --- a/Lib/compiler/pycodegen.py +++ b/Lib/compiler/pycodegen.py @@ -193,6 +193,18 @@ class CodeGenerator: else: self.emit(prefix + '_GLOBAL', name) + def _implicitNameOp(self, prefix, name): + """Emit name ops for names generated implicitly by for loops + + The interpreter generates names that start with a period or + dollar sign. The symbol table ignores these names because + they aren't present in the program text. + """ + if self.optimized: + self.emit(prefix + '_FAST', name) + else: + self.emit(prefix + '_NAME', name) + def set_lineno(self, node, force=0): """Emit SET_LINENO if node has lineno attribute and it is different than the last lineno emitted. @@ -221,6 +233,7 @@ class CodeGenerator: ClassGen = None def visitModule(self, node): + self.emit('SET_LINENO', 0) lnf = walk(node.node, self.NameFinder(), 0) self.locals.push(lnf.getLocals()) if node.doc: @@ -421,7 +434,7 @@ class CodeGenerator: self.emit('BUILD_LIST', 0) self.emit('DUP_TOP') self.emit('LOAD_ATTR', 'append') - self.emit('STORE_FAST', append) + self._implicitNameOp('STORE', append) stack = [] for i, for_ in zip(range(len(node.quals)), node.quals): @@ -433,7 +446,7 @@ class CodeGenerator: self.visit(if_, cont) stack.insert(0, (start, cont, anchor)) - self.emit('LOAD_FAST', append) + self._implicitNameOp('LOAD', append) self.visit(node.expr) self.emit('CALL_FUNCTION', 1) self.emit('POP_TOP') @@ -447,7 +460,7 @@ class CodeGenerator: self.nextBlock(skip_one) self.emit('JUMP_ABSOLUTE', start) self.startBlock(anchor) - self.emit('DELETE_FAST', append) + self._implicitNameOp('DELETE', append) self.__list_count = self.__list_count - 1 @@ -457,8 +470,8 @@ class CodeGenerator: self.visit(node.list) self.visit(ast.Const(0)) - self.emit('SET_LINENO', node.lineno) self.nextBlock(start) + self.emit('SET_LINENO', node.lineno) self.emit('FOR_LOOP', anchor) self.nextBlock() self.visit(node.assign) |