Method set

Parser/asdl_c.py:2133–2156

(self, field, value, depth)

        emit("Py_DECREF(value);", 0)

    def set(self, field, value, depth):
        if field.seq:
            if field.type in self.metadata.simple_sums:
                # While the sequence elements are stored as void*,
                # simple sums expects an enum
                self.emit("{", depth)
                self.emit("Py_ssize_t i, n = asdl_seq_LEN(%s);" % value, depth+1)
                self.emit("value = PyList_New(n);", depth+1)
                self.emit("if (!value) goto failed;", depth+1)
                self.emit("for(i = 0; i < n; i++)", depth+1)
                # This cannot fail, so no need for error handling
                self.emit(
                    "PyList_SET_ITEM(value, i, ast2obj_{0}(state, ({0}_ty)asdl_seq_GET({1}, i)));".format(
                        field.type,
                        value
                    ),
                    depth + 2,
                    reflow=False,
                )
                self.emit("}", depth)
            else:
                self.emit("value = ast2obj_list(state, (asdl_seq*)%s, ast2obj_%s);" % (value, field.type), depth)
        else:
            self.emit("value = ast2obj_%s(state, %s);" % (field.type, value), depth, reflow=False)


class PartingShots(StaticVisitor):