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class_mapping.go
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/
class_mapping.go
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// Copyright 2011 Julian Phillips. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package py
// #include "utils.h"
import "C"
import "unsafe"
//export goClassMapLen
func goClassMapLen(obj unsafe.Pointer) C.Py_ssize_t {
// Get the class context
ctxt := getClassContext(obj)
// Turn the function into something we can call
f := (*func(unsafe.Pointer) int64)(unsafe.Pointer(&ctxt.mp_len))
return C.Py_ssize_t((*f)(obj))
}
//export goClassMapGet
func goClassMapGet(obj, arg unsafe.Pointer) unsafe.Pointer {
// Get the class context
ctxt := getClassContext(obj)
// Turn the function into something we can call
f := (*func(unsafe.Pointer, Object) (Object, error))(unsafe.Pointer(&ctxt.mp_get))
key := newObject((*C.PyObject)(arg))
ret, err := (*f)(obj, key)
if err != nil {
raise(err)
return nil
}
return unsafe.Pointer(c(ret))
}
//export goClassMapSet
func goClassMapSet(obj, arg1, arg2 unsafe.Pointer) int {
// Get the class context
ctxt := getClassContext(obj)
// Turn the function into something we can call
f := (*func(unsafe.Pointer, Object, Object) error)(unsafe.Pointer(&ctxt.mp_set))
key := newObject((*C.PyObject)(arg1))
value := newObject((*C.PyObject)(arg2))
err := (*f)(obj, key, value)
if err != nil {
raise(err)
return -1
}
return 0
}