NodObjC
The NodeJS ⇆ Objective-C Bridge
Ffi-extend
Module dependencies.
var ffi = require('node-ffi')
, core = require('./core')
, types = require('./types')
, Pointer = ffi.Pointer
, SIZE_MAP = ffi.Bindings.TYPE_SIZE_MAP
, FUNC_MAP = ffi.TYPE_TO_POINTER_METHOD_MAPPointer.prototype.ref()
Returns a new Pointer that points to this pointer. Equivalent to the "address of" operator:
type* = &ptrPointer.prototype.ref = function ref () {
var ptr = new Pointer(SIZE_MAP.pointer)
ptr.putPointer(this)
ptr._type = '^' + this._type
return ptr
}Pointer.prototype.deref()
Dereferences the pointer. Includes wrapping up id instances when necessary. Equivalent to the "value at" operator:
type = *ptrPointer.prototype.deref = function deref () {
var t = this._type
if (t[0] !== '^') throw new Error('cannot dereference non-pointer')
// since we're dereferencing, remove the leading ^ char
t = t.substring(1)
var ffiType = types.map(t)
, val = null
if (!ffiType) throw new Error('cannot determine type: ' + t)
if (ffi.isStructType(ffiType)) {
val = new ffiType(this)
} else {
val = this['get' + FUNC_MAP[ffiType] ]()
}
val._type = t
return core.wrapValue(val, t)
}