[英]Creating first node.js addon
我正在按照文檔創建一個node.js插件。 我跑了
node-gyp configure build --python C:\\Python27
並收到錯誤
錯誤:產生ENOENT
全棧:
gyp info it worked if it ends with ok
gyp info using node-gyp@1.0.3
gyp info using node@0.10.29 | win32 | x64
gyp ERR! configure error
gyp ERR! stack Error: spawn ENOENT
gyp ERR! stack at errnoException (child_process.js:1000:11)
gyp ERR! stack at Process.ChildProcess._handle.onexit (child_process.js:791:34)
gyp ERR! System Windows_NT 6.1.7601
gyp ERR! command "node" "C:\\Users\\bmackey\\AppData\\Roaming\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "configure" "build" "--python" "C:\\Python27"
gyp ERR! cwd D:\DevProjects\Node\AddOn
gyp ERR! node -v v0.10.29
gyp ERR! node-gyp -v v1.0.3
gyp ERR! not ok
我的3個必需文件都在同一目錄中:
hello.cc:
// hello.cc
#include <node.h>
//Note that all node addons must export an initialization function.
//Does this go in a .h or here or what?
void Initialize (Handle<Object> exports);
NODE_MODULE(module_name, Initialize)
using namespace v8;
void Method(const FunctionCallbackInfo<Value>& args) {
Isolate* isolate = Isolate::GetCurrent();
HandleScope scope(isolate);
args.GetReturnValue().Set(String::NewFromUtf8(isolate, "world"));
}
void init(Handle<Object> exports) {
NODE_SET_METHOD(exports, "hello", Method);
}
NODE_MODULE(addon, init)
binding.gyp:
{
"targets": [
{
"target_name": "addon",
"sources": [ "hello.cc" ]
}
]
}
hello.js:
var addon = require('./build/Release/addon');
console.log(addon.hello()); // 'world'
可選的--python
參數需要python.exe的路徑:
node-gyp configure build --python C:\\Python27\\python.exe
node.js網站上的示例不適用於我。 這個人的例子工作得更好,但最終這對我來說更有意義:
hello.cc
#include <node.h>
using namespace v8;
Handle<Value> Method(const Arguments& args) {
HandleScope scope;
return scope.Close(String::New("here is some output"));
}
void init(Handle<Object> target) {
target->Set(String::NewSymbol("methodName"),
FunctionTemplate::New(Method)->GetFunction());
}
NODE_MODULE(myModuleName, init)
binding.gyp:
{
"targets": [
{
"target_name": "myModuleName",
"sources": [ "hello.cc" ]
}
]
}
hello.js:
var addon = require('./build/Release/myModuleName');
console.log(addon.methodName()); // prints "here is some output"
這種布局消除了一些命名歧義。
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