diff options
Diffstat (limited to 'Lib/compiler')
| -rw-r--r-- | Lib/compiler/pycodegen.py | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/Lib/compiler/pycodegen.py b/Lib/compiler/pycodegen.py index e6849e5..3f5ef89 100644 --- a/Lib/compiler/pycodegen.py +++ b/Lib/compiler/pycodegen.py @@ -141,13 +141,16 @@ class CodeGenerator: def visitModule(self, node): lnf = walk(node.node, LocalNameFinder(), 0) self.locals.push(lnf.getLocals()) - self.setDocstring(node.doc) + if node.doc: + self.fixDocstring(node.node) self.visit(node.node) self.emit('LOAD_CONST', None) self.emit('RETURN_VALUE') def visitFunction(self, node): self._visitFuncOrLambda(node, isLambda=0) + if node.doc: + self.setDocstring(node.doc) self.storeName(node.name) def visitLambda(self, node): @@ -165,6 +168,8 @@ class CodeGenerator: def visitClass(self, node): gen = ClassCodeGenerator(node, self.filename) + if node.doc: + self.fixDocstring(node.code) walk(node.code, gen) gen.finish() self.set_lineno(node) @@ -178,6 +183,19 @@ class CodeGenerator: self.emit('BUILD_CLASS') self.storeName(node.name) + def fixDocstring(self, node): + """Rewrite the ast for a class with a docstring. + + The AST includes a Discard(Const(docstring)) node. Replace + this with an Assign([AssName('__doc__', ...]) + """ + assert isinstance(node, ast.Stmt) + stmts = node.nodes + discard = stmts[0] + assert isinstance(discard, ast.Discard) + stmts[0] = ast.Assign([ast.AssName('__doc__', 'OP_ASSIGN')], + discard.expr) + stmts[0].lineno = discard.lineno # The rest are standard visitor methods # The next few implement control-flow statements @@ -627,7 +645,7 @@ class CodeGenerator: def visitAugSlice(self, node, mode): if mode == "load": - self.visitSlice(node, 1) + self.visitlSice(node, 1) elif mode == "store": slice = 0 if node.lower: @@ -896,10 +914,13 @@ class FunctionCodeGenerator(CodeGenerator): name = func.name args, hasTupleArg = generateArgList(func.argnames) self.graph = pyassem.PyFlowGraph(name, filename, args, - optimized=1) + optimized=1) self.isLambda = isLambda self.super_init(filename) + if not isLambda and func.doc: + self.setDocstring(func.doc) + lnf = walk(func.code, LocalNameFinder(args), 0) self.locals.push(lnf.getLocals()) if func.varargs: @@ -947,6 +968,8 @@ class ClassCodeGenerator(CodeGenerator): lnf = walk(klass.code, LocalNameFinder(), 0) self.locals.push(lnf.getLocals()) self.graph.setFlag(CO_NEWLOCALS) + if klass.doc: + self.setDocstring(klass.doc) def finish(self): self.graph.startExitBlock() |