michael@0: // |reftest| skip-if(!xulRuntime.shell)
michael@0: // Any copyright is dedicated to the Public Domain.
michael@0: // http://creativecommons.org/licenses/publicdomain/
michael@0: 
michael@0: function test() {
michael@0:     // Note: -8 and -200 will trigger asm.js link failures because 8 and 200
michael@0:     // bytes are below the minimum allowed size, and the buffer will not
michael@0:     // actually be converted to an asm.js buffer.
michael@0:     for (var size of [0, 8, 16, 200, 1000, 4096, -8, -200, -8192, -65536]) {
michael@0:         var buffer_ctor = (size < 0) ? AsmJSArrayBuffer : ArrayBuffer;
michael@0:         size = Math.abs(size);
michael@0: 
michael@0:         var old = new buffer_ctor(size);
michael@0:         var copy = deserialize(serialize(old, [old]));
michael@0:         assertEq(old.byteLength, 0);
michael@0:         assertEq(copy.byteLength, size);
michael@0: 
michael@0:         var constructors = [ Int8Array,
michael@0:                              Uint8Array,
michael@0:                              Int16Array,
michael@0:                              Uint16Array,
michael@0:                              Int32Array,
michael@0:                              Uint32Array,
michael@0:                              Float32Array,
michael@0:                              Float64Array,
michael@0:                              Uint8ClampedArray ];
michael@0: 
michael@0:         for (var ctor of constructors) {
michael@0:             var buf = new buffer_ctor(size);
michael@0:             var old_arr = new ctor(buf);
michael@0:             assertEq(buf.byteLength, size);
michael@0:             assertEq(buf, old_arr.buffer);
michael@0:             assertEq(old_arr.length, size / old_arr.BYTES_PER_ELEMENT);
michael@0: 
michael@0:             var copy_arr = deserialize(serialize(old_arr, [ buf ]));
michael@0:             assertEq(buf.byteLength, 0, "donor array buffer should be neutered");
michael@0:             assertEq(old_arr.length, 0, "donor typed array should be neutered");
michael@0:             assertEq(copy_arr.buffer.byteLength == size, true);
michael@0:             assertEq(copy_arr.length, size / old_arr.BYTES_PER_ELEMENT);
michael@0: 
michael@0:             buf = null;
michael@0:             old_arr = null;
michael@0:             gc(); // Tickle the ArrayBuffer -> view management
michael@0:         }
michael@0: 
michael@0:         for (var ctor of constructors) {
michael@0:             var buf = new buffer_ctor(size);
michael@0:             var old_arr = new ctor(buf);
michael@0:             var dv = new DataView(buf); // Second view
michael@0:             var copy_arr = deserialize(serialize(old_arr, [ buf ]));
michael@0:             assertEq(buf.byteLength, 0, "donor array buffer should be neutered");
michael@0:             assertEq(old_arr.length, 0, "donor typed array should be neutered");
michael@0:             assertEq(dv.byteLength, 0, "all views of donor array buffer should be neutered");
michael@0: 
michael@0:             buf = null;
michael@0:             old_arr = null;
michael@0:             gc(); // Tickle the ArrayBuffer -> view management
michael@0:         }
michael@0: 
michael@0:         // Mutate the buffer during the clone operation. The modifications should be visible.
michael@0:         if (size >= 4) {
michael@0:             old = new buffer_ctor(size);
michael@0:             var view = new Int32Array(old);
michael@0:             view[0] = 1;
michael@0:             var mutator = { get foo() { view[0] = 2; } };
michael@0:             var copy = deserialize(serialize([ old, mutator ], [old]));
michael@0:             var viewCopy = new Int32Array(copy[0]);
michael@0:             assertEq(view.length, 0); // Neutered
michael@0:             assertEq(viewCopy[0], 2);
michael@0:         }
michael@0: 
michael@0:         // Neuter the buffer during the clone operation. Should throw an exception.
michael@0:         if (size >= 4) {
michael@0:             old = new buffer_ctor(size);
michael@0:             var mutator = {
michael@0:                 get foo() {
michael@0:                     deserialize(serialize(old, [old]));
michael@0:                 }
michael@0:             };
michael@0:             // The throw is not yet implemented, bug 919259.
michael@0:             //var copy = deserialize(serialize([ old, mutator ], [old]));
michael@0:         }
michael@0:     }
michael@0: }
michael@0: 
michael@0: test();
michael@0: reportCompare(0, 0, 'ok');