__init__.py 文件源码

def visit_For(self, node):
        """
        For(expr target, expr iter, stmt* body, stmt* orelse)
        """
        if not isinstance(node.target, (ast.Name,ast.Tuple, ast.List)):
            raise RubyError("argument decomposition in 'for' loop is not supported")
        #if isinstance(node.target, ast.Tuple):

        #print self.visit(node.iter) #or  Variable (String case)
        #if isinstance(node.iter, ast.Str):

        self._tuple_type = '()'
        for_target = self.visit(node.target)
        self._tuple_type = '[]'
        #if isinstance(node.iter, (ast.Tuple, ast.List)):
        #    for_iter = "[%s]" % self.visit(node.iter)
        #else:
        #    for_iter = self.visit(node.iter)
        # ast.Tuple, ast.List, ast.*
        for_iter = self.visit(node.iter)

        iter_dummy = self.new_dummy()
        orelse_dummy = self.new_dummy()
        exc_dummy = self.new_dummy()

        self.write("for %s in %s" % (for_target, for_iter))
        self.indent()
        for stmt in node.body:
            self.visit(stmt)
        self.dedent()
        self.write("end")

        if node.orelse:
            self.write("if (%s) {" % orelse_dummy)
            self.indent()
            for stmt in node.orelse:
                self.visit(stmt)
            self.dedent()
            self.write("}")