arraybuffer-pin.js

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// |jit-test| --enable-arraybuffer-resizable

load(libdir + "asserts.js");

var ab_inline = new ArrayBuffer(4);

assertEq(pinArrayBufferOrViewLength(ab_inline), true);

assertEq(pinArrayBufferOrViewLength(ab_inline), false);

assertErrorMessage(() => detachArrayBuffer(ab_inline), RangeError, /change pinned length/);

assertEq(pinArrayBufferOrViewLength(ab_inline, false), true);

detachArrayBuffer(ab_inline);

var ab_big = new ArrayBuffer(1000);

assertEq(pinArrayBufferOrViewLength(ab_big), true);

assertEq(pinArrayBufferOrViewLength(ab_big), false);

assertErrorMessage(() => detachArrayBuffer(ab_big), RangeError, /change pinned length/);

assertEq(pinArrayBufferOrViewLength(ab_big, false), true);

detachArrayBuffer(ab_big);

if (ArrayBuffer.prototype.resize) {

  var rab_small = new ArrayBuffer(4, { maxByteLength: 20 });

  assertEq(pinArrayBufferOrViewLength(rab_small), true);

  assertEq(pinArrayBufferOrViewLength(rab_small), false);

  assertErrorMessage(() => detachArrayBuffer(rab_small), RangeError, /change pinned length/);

  assertErrorMessage(() => rab_small.resize(18), RangeError, /change pinned length/);

  assertEq(pinArrayBufferOrViewLength(rab_small, false), true);

  assertEq(rab_small.byteLength, 4);

  rab_small.resize(18);

  assertEq(rab_small.byteLength, 18);

  detachArrayBuffer(rab_small);

} else {

  print("Skipped test: resizable ArrayBuffers unavailable");

if (ArrayBuffer.prototype.resize) {

  var rab_big = new ArrayBuffer(200, { maxByteLength: 1000 });

  assertEq(pinArrayBufferOrViewLength(rab_big), true);

  assertEq(pinArrayBufferOrViewLength(rab_big), false);

  assertErrorMessage(() => detachArrayBuffer(rab_big), RangeError, /change pinned length/);

  assertErrorMessage(() => rab_big.resize(400), RangeError, /change pinned length/);

  assertEq(pinArrayBufferOrViewLength(rab_big, false), true);

  assertEq(rab_big.byteLength, 200);

  rab_big.resize(400);

  assertEq(rab_big.byteLength, 400);

  detachArrayBuffer(rab_big);

} else {

  print("Skipped test: resizable ArrayBuffers unavailable");

var sab = new SharedArrayBuffer(4);

assertEq(pinArrayBufferOrViewLength(sab), false);

assertEq(pinArrayBufferOrViewLength(sab), false);

assertErrorMessage(() => serialize([sab], [sab]), TypeError, /Shared memory objects.*transfer/);

assertEq(pinArrayBufferOrViewLength(sab, false), false);

assertErrorMessage(() => detachArrayBuffer(sab), TypeError, /ArrayBuffer.*required/);

if (SharedArrayBuffer.prototype.grow) {

  var gab = new SharedArrayBuffer(4, { maxByteLength: 1000 });

  assertEq(pinArrayBufferOrViewLength(gab), false);

  assertEq(pinArrayBufferOrViewLength(gab), false);

  assertErrorMessage(() => detachArrayBuffer(gab), TypeError, /ArrayBuffer.*required/);

  // assertErrorMessage(() => gab.grow(400), RangeError, /change pinned length/);

  assertEq(pinArrayBufferOrViewLength(gab, false), false);

  assertEq(gab.byteLength, 4);

  gab.grow(400);

  assertEq(gab.byteLength, 400);

  assertErrorMessage(() => detachArrayBuffer(gab), TypeError, /ArrayBuffer.*required/);

} else {

  print("Skipped test: growable SharedArrayBuffers unavailable");