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View Code? Open in Web Editor NEWExamples for the native addons blogpost
Examples for the native addons blogpost
Thought you might be interested in a port of this example to nbind. Maybe this could be a tutorial step 4?
Here's the equivalent example.cc
:
#include <string>
#include "nbind/nbind.h"
const int maxValue = 10;
int numberOfCalls = 0;
std::string WhoAmI() {
return "I'm a Node Hero!";
}
double increment(int argsValue) {
if (numberOfCalls + argsValue > maxValue) {
NBIND_ERR("Counter went through the roof!");
return 0;
}
numberOfCalls += argsValue;
return numberOfCalls;
}
NBIND_GLOBAL() {
// The second parameter renaming the function is optional.
function(WhoAmI, "whoami");
// The nbind::Strict() policy makes passing non-numbers throw
// instead of coercing to number like +["42"] would do in JavaScript.
// To also rename the function, add the new name before any policies.
function(increment, nbind::Strict());
}
To avoid having to install node-gyp
and autogypi
globally, I usually add these scripts in package.json
:
"scripts": {
"autogypi": "autogypi",
"node-gyp": "node-gyp",
Then here's the extra shell commands to install nbind
:
npm install --save nbind
npm install --save-dev autogypi
rm binding.gyp
npm run -- autogypi --init-gyp -p nbind -s example.cc
index.js
needs a one-line change to how the addon is loaded:
const addon = require('nbind').init().lib
Now it works! Run:
npm install
node index.js
It prints the exact same output as the original version.
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