1 from Cython.Compiler.Visitor import VisitorTransform 2 from Cython.Compiler.Nodes import StatListNode 3 4 class ExtractPxdCode(VisitorTransform): 5 """ 6 Finds nodes in a pxd file that should generate code, and 7 returns them in a StatListNode. 8 9 The result is a tuple (StatListNode, ModuleScope), i.e. 10 everything that is needed from the pxd after it is processed. 11 12 A purer approach would be to seperately compile the pxd code, 13 but the result would have to be slightly more sophisticated 14 than pure strings (functions + wanted interned strings + 15 wanted utility code + wanted cached objects) so for now this 16 approach is taken. 17 """ 18 19 def __call__(self, root): 20 self.funcs = [] 21 self.visitchildren(root) 22 return (StatListNode(root.pos, stats=self.funcs), root.scope) 23 24 def visit_FuncDefNode(self, node): 25 self.funcs.append(node) 26 # Do not visit children, nested funcdefnodes will 27 # also be moved by this action... 28 return node 29 30 def visit_Node(self, node): 31 self.visitchildren(node) 32 return node 33
