Allocator.dupe(arg) - chung-leong/zigar GitHub Wiki

Allocate memory and copy contents of the given object into it.

Usage

const std = @import("std");

var gpa = std.heap.DebugAllocator(.{}).init;
pub const allocator = gpa.allocator();
pub const Point = struct {
    x: i32,
    y: i32,
};

import { allocator, Point } from './allocator-js-example-2.zig';

const dv1 = allocator.dupe('Hello world');
allocator.free(dv1);
const dv2 = allocator.dupe(new DataView(new ArrayBuffer(128)));
allocator.free(dv2);
const dv3 = allocator.dupe(new Int32Array([ 1, 2, 3, 4 ]));
allocator.free(dv3);
const point = allocator.dupe(new Point({ x: 1, y: 2 }));
allocator.free(point);

Arguments:

• arg
  A string, a Zig object, or any other ArrayBuffer-backed object (DataView, Uint8Array, Buffer, etc.)

Return value:

DataView or Zig object