PSON decoder example using namespaced imports

examples/pson/index.js

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+var fs = require("fs");
+
+// Define imports. Just logs to console for the sake of this example.
+var pson = {
+  onNull: function() {
+    console.log("null");
+  },
+  onTrue: function() {
+    console.log("true");
+  },
+  onFalse: function() {
+    console.log("false");
+  },
+  onEObject: function() {
+    console.log("{}");
+  },
+  onEArray: function() {
+    console.log("[]");
+  },
+  onEString: function() {
+    console.log("\"\"");
+  },
+  onObject: function(size) {
+    console.log("{" + size + "}")
+  },
+  onArray: function(size) {
+    console.log("[" + size + "]");
+  },
+  onInteger: function(value) {
+    console.log("integer: " + value);
+  },
+  onLong: function(valueLow, valueHigh) {
+    console.log("long: " + valueLow + ", " + valueHigh);
+  },
+  onFloat: function(value) {
+    console.log("float: " + value);
+  },
+  onDouble: function(value) {
+    console.log("double: " + value);
+  },
+  onString: function(offset, length) {
+    console.log("string(length=" + length + "): " + new Buffer(mem.slice(offset, offset + length)).toString());
+  },
+  onBinary: function(offset, length) {
+    console.log("binary(length=" + length + "): " + mem.slice(offset, offset + length));
+  },
+  onTruncated: function() {
+    console.log("buffer is truncated :-(");
+  }
+};
+
+// Instantiate the module
+var mod = new WebAssembly.Module(fs.readFileSync(__dirname + "/pson.optimized.wasm"));
+var ins = new WebAssembly.Instance(mod, { pson: pson });
+var mem = new Uint8Array(ins.exports.memory.buffer);
+
+// Export API
+exports.decode = function(buffer) {
+
+  // grow memory if necessary
+  if (mem.length < buffer.length) {
+    ins.exports.memory.grow(Math.ceil((buffer.length - mem.length) / 65536));
+    mem = new Uint8Array(ins.exports.memory.buffer);
+  }
+
+  // copy buffer to memory
+  mem.set(buffer);
+
+  // start decoding (calls the imports defined above)
+  ins.exports.decode(buffer.length);
+}