我们从Python开源项目中，提取了以下21个代码示例，用于说明如何使用symbol.funcdef()。
def compile_node(self, node): ### emit a line-number node? n = node[0] if n == symbol.encoding_decl: self.encoding = node[2] node = node[1] n = node[0] if n == symbol.single_input: return self.single_input(node[1:]) if n == symbol.file_input: return self.file_input(node[1:]) if n == symbol.eval_input: return self.eval_input(node[1:]) if n == symbol.lambdef: return self.lambdef(node[1:]) if n == symbol.funcdef: return self.funcdef(node[1:]) if n == symbol.classdef: return self.classdef(node[1:]) raise WalkerError, ('unexpected node type', n)
def _extract_info(self, tree): # extract docstring if len(tree) == 2: found, vars = match(DOCSTRING_STMT_PATTERN[1], tree[1]) else: found, vars = match(DOCSTRING_STMT_PATTERN, tree[3]) if found: self._docstring = eval(vars['docstring']) # discover inner definitions for node in tree[1:]: found, vars = match(COMPOUND_STMT_PATTERN, node) if found: cstmt = vars['compound'] if cstmt[0] == symbol.funcdef: name = cstmt[2][1] self._function_info[name] = FunctionInfo(cstmt) elif cstmt[0] == symbol.classdef: name = cstmt[2][1] self._class_info[name] = ClassInfo(cstmt)
def _loadfile(self, fileno): try: filename = self._filemap[fileno] except KeyError: print "Could not identify fileId", fileno return 1 if filename is None: return 1 absname = os.path.normcase(os.path.join(self.cwd, filename)) try: fp = open(absname) except IOError: return st = parser.suite(fp.read()) fp.close() # Scan the tree looking for def and lambda nodes, filling in # self._funcmap with all the available information. funcdef = symbol.funcdef lambdef = symbol.lambdef stack = [st.totuple(1)] while stack: tree = stack.pop() try: sym = tree[0] except (IndexError, TypeError): continue if sym == funcdef: self._funcmap[(fileno, tree[2][2])] = filename, tree[2][1] elif sym == lambdef: self._funcmap[(fileno, tree[1][2])] = filename, "<lambda>" stack.extend(list(tree[1:]))
def decorated(self, nodelist): assert nodelist[0][0] == symbol.decorators if nodelist[1][0] == symbol.funcdef: n = [nodelist[0]] + list(nodelist[1][1:]) return self.funcdef(n) elif nodelist[1][0] == symbol.classdef: decorators = self.decorators(nodelist[0][1:]) cls = self.classdef(nodelist[1][1:]) cls.decorators = decorators return cls raise WalkerError()
def funcdef(self, nodelist): # -6 -5 -4 -3 -2 -1 # funcdef: [decorators] 'def' NAME parameters ':' suite # parameters: '(' [varargslist] ')' if len(nodelist) == 6: assert nodelist[0][0] == symbol.decorators decorators = self.decorators(nodelist[0][1:]) else: assert len(nodelist) == 5 decorators = None lineno = nodelist[-4][2] name = nodelist[-4][1] args = nodelist[-3][2] if args[0] == symbol.varargslist: names, defaults, flags = self.com_arglist(args[1:]) else: names = defaults = () flags = 0 doc = self.get_docstring(nodelist[-1]) # code for function code = self.com_node(nodelist[-1]) if doc is not None: assert isinstance(code, Stmt) assert isinstance(code.nodes[0], Discard) del code.nodes[0] return Function(decorators, name, names, defaults, flags, doc, code, lineno=lineno)
