Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

20 files changed, 992 insertions, 0 deletions

diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/browser.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/browser.js
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/browser.js
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/coerced-indexes.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/coerced-indexes.js
new file mode 100644
index 0000000000..f7ba55c725
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/coerced-indexes.js
@@ -0,0 +1,106 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: >
+  Fills elements from coerced to Integer `start` and `end` values
+info: |
+  22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] )
+
+  %TypedArray%.prototype.fill is a distinct function that implements the same
+  algorithm as Array.prototype.fill as defined in 22.1.3.6 except that the this
+  object's [[ArrayLength]] internal slot is accessed in place of performing a
+  [[Get]] of "length". The implementation of the algorithm may be optimized with
+  the knowledge that the this value is an object that has a fixed length and
+  whose integer indexed properties are not sparse. However, such optimization
+  must not introduce any observable changes in the specified behaviour of the
+  algorithm.
+
+  ...
+
+  22.1.3.6 Array.prototype.fill (value [ , start [ , end ] ] )
+
+  ...
+  3. Let relativeStart be ? ToInteger(start).
+  4. If relativeStart < 0, let k be max((len + relativeStart), 0); else let k be
+  min(relativeStart, len).
+  5. If end is undefined, let relativeEnd be len; else let relativeEnd be ?
+  ToInteger(end).
+  ...
+includes: [compareArray.js, testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  assert(
+    compareArray(new TA([0n, 0n]).fill(1n, undefined), [1n, 1n]),
+    '`undefined` start coerced to 0'
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n]).fill(1n, 0, undefined), [1n, 1n]),
+    'If end is undefined, let relativeEnd be len'
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n]).fill(1n, null), [1n, 1n]),
+    '`null` start coerced to 0'
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n]).fill(1n, 0, null), [0n, 0n]),
+    '`null` end coerced to 0'
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n]).fill(1n, true), [0n, 1n]),
+    '`true` start coerced to 1'
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n]).fill(1n, 0, true), [1n, 0n]),
+    '`true` end coerced to 1'
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n]).fill(1n, false), [1n, 1n]),
+    '`false` start coerced to 0'
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n]).fill(1n, 0, false), [0n, 0n]),
+    '`false` end coerced to 0'
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n]).fill(1n, NaN), [1n, 1n]),
+    '`NaN` start coerced to 0'
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n]).fill(1n, 0, NaN), [0n, 0n]),
+    '`NaN` end coerced to 0'
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n]).fill(1n, '1'), [0n, 1n]),
+    'string start coerced'
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n]).fill(1n, 0, '1'), [1n, 0n]),
+    'string end coerced'
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n]).fill(1n, 1.5), [0n, 1n]),
+    'start as a float number coerced'
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n]).fill(1n, 0, 1.5), [1n, 0n]),
+    'end as a float number coerced'
+  );
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/detached-buffer.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/detached-buffer.js
new file mode 100644
index 0000000000..0da0298fd6
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/detached-buffer.js
@@ -0,0 +1,36 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: Throws a TypeError if this has a detached buffer
+info: |
+  22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] )
+
+  This function is not generic. ValidateTypedArray is applied to the this value
+  prior to evaluating the algorithm. If its result is an abrupt completion that
+  exception is thrown instead of evaluating the algorithm.
+
+  22.2.3.5.1 Runtime Semantics: ValidateTypedArray ( O )
+
+  ...
+  5. If IsDetachedBuffer(buffer) is true, throw a TypeError exception.
+  ...
+includes: [testBigIntTypedArray.js, detachArrayBuffer.js]
+features: [BigInt, TypedArray]
+---*/
+
+var obj = {
+  valueOf: function() {
+    throw new Test262Error();
+  }
+};
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample = new TA(1);
+  $DETACHBUFFER(sample.buffer);
+  assert.throws(TypeError, function() {
+    sample.fill(obj);
+  });
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-conversion-once.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-conversion-once.js
new file mode 100644
index 0000000000..5a7302c362
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-conversion-once.js
@@ -0,0 +1,30 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: >
+  Fills all the elements with non numeric values values.
+info: |
+  22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] )
+
+  ...
+  3. If O.[[TypedArrayName]] is "BigUint64Array" or "BigInt64Array",
+     let value be ? ToBigInt(value).
+  ...
+includes: [testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample = new TA(2);
+
+  var n = 1n;
+  sample.fill({ valueOf() { return n++; } });
+
+  assert.sameValue(n, 2n, "additional unexpected ToBigInt() calls");
+  assert.sameValue(sample[0], 1n, "incorrect ToNumber result in index 0");
+  assert.sameValue(sample[1], 1n, "incorrect ToNumber result in index 1");
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-custom-start-and-end.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-custom-start-and-end.js
new file mode 100644
index 0000000000..012c31fc29
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-custom-start-and-end.js
@@ -0,0 +1,44 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: >
+  Fills all the elements from a with a custom start and end indexes.
+info: |
+  22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] )
+
+  %TypedArray%.prototype.fill is a distinct function that implements the same
+  algorithm as Array.prototype.fill as defined in 22.1.3.6 except that the this
+  object's [[ArrayLength]] internal slot is accessed in place of performing a
+  [[Get]] of "length". The implementation of the algorithm may be optimized with
+  the knowledge that the this value is an object that has a fixed length and
+  whose integer indexed properties are not sparse. However, such optimization
+  must not introduce any observable changes in the specified behaviour of the
+  algorithm.
+
+  ...
+
+  22.1.3.6 Array.prototype.fill (value [ , start [ , end ] ] )
+
+  ...
+  3. Let relativeStart be ? ToInteger(start).
+  4. If relativeStart < 0, let k be max((len + relativeStart), 0); else let k be
+  min(relativeStart, len).
+  5. If end is undefined, let relativeEnd be len; else let relativeEnd be ?
+  ToInteger(end).
+  6. If relativeEnd < 0, let final be max((len + relativeEnd), 0); else let
+  final be min(relativeEnd, len).
+  ...
+includes: [compareArray.js, testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  assert(compareArray(new TA([0n, 0n, 0n]).fill(8n, 1, 2), [0n, 8n, 0n]));
+  assert(compareArray(new TA([0n, 0n, 0n, 0n, 0n]).fill(8n, -3, 4), [0n, 0n, 8n, 8n, 0n]));
+  assert(compareArray(new TA([0n, 0n, 0n, 0n, 0n]).fill(8n, -2, -1), [0n, 0n, 0n, 8n, 0n]));
+  assert(compareArray(new TA([0n, 0n, 0n, 0n, 0n]).fill(8n, -1, -3), [0n, 0n, 0n, 0n, 0n]));
+  assert(compareArray(new TA([0n, 0n, 0n, 0n, 0n]).fill(8n, 1, 3), [0n, 8n, 8n, 0n, 0n]));
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-non-numeric-throw.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-non-numeric-throw.js
new file mode 100644
index 0000000000..a50c36f53f
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-non-numeric-throw.js
@@ -0,0 +1,69 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: >
+  Fills all the elements with non numeric values values.
+info: |
+  %TypedArray%.prototype.fill ( value [ , start [ , end ] ] )
+
+  Let O be the this value.
+  Perform ? ValidateTypedArray(O).
+  Let len be O.[[ArrayLength]].
+  If O.[[ContentType]] is BigInt, set value to ? ToBigInt(value).
+  Otherwise, set value to ? ToNumber(value).
+  Let relativeStart be ? ToIntegerOrInfinity(start).
+  If relativeStart is -Infinity, let k be 0.
+  Else if relativeStart < 0, let k be max(len + relativeStart, 0).
+  Else, let k be min(relativeStart, len).
+  If end is undefined, let relativeEnd be len; else let relativeEnd be ? ToIntegerOrInfinity(end).
+  If relativeEnd is -Infinity, let final be 0.
+  Else if relativeEnd < 0, let final be max(len + relativeEnd, 0).
+  Else, let final be min(relativeEnd, len).
+  If IsDetachedBuffer(O.[[ViewedArrayBuffer]]) is true, throw a TypeError exception.
+  Repeat, while k < final,
+    Let Pk be ! ToString(F(k)).
+    Perform ! Set(O, Pk, value, true).
+    Set k to k + 1.
+  Return O.
+
+  IntegerIndexedElementSet ( O, index, value )
+
+  Assert: O is an Integer-Indexed exotic object.
+  If O.[[ContentType]] is BigInt, let numValue be ? ToBigInt(value).
+  Otherwise, let numValue be ? ToNumber(value).
+  Let buffer be O.[[ViewedArrayBuffer]].
+  If IsDetachedBuffer(buffer) is false and ! IsValidIntegerIndex(O, index) is true, then
+    Let offset be O.[[ByteOffset]].
+    Let arrayTypeName be the String value of O.[[TypedArrayName]].
+    Let elementSize be the Element Size value specified in Table 62 for arrayTypeName.
+    Let indexedPosition be (ℝ(index) × elementSize) + offset.
+    Let elementType be the Element Type value in Table 62 for arrayTypeName.
+    Perform SetValueInBuffer(buffer, indexedPosition, elementType, numValue, true, Unordered).
+  Return NormalCompletion(undefined).
+
+
+includes: [testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample;
+
+  sample = new TA([42n]);
+
+  assert.throws(TypeError, function() {
+    sample.fill(undefined);
+  }, "abrupt completion from undefined");
+
+  assert.throws(TypeError, function() {
+    sample.fill(null);
+  }, "abrupt completion from null");
+
+  assert.throws(SyntaxError, function() {
+    sample.fill("nonsense");
+  }, "abrupt completion from string");
+
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-non-numeric.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-non-numeric.js
new file mode 100644
index 0000000000..7033d70ba7
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-non-numeric.js
@@ -0,0 +1,85 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: >
+  Fills all the elements with non numeric values values.
+info: |
+  %TypedArray%.prototype.fill ( value [ , start [ , end ] ] )
+
+  Let O be the this value.
+  Perform ? ValidateTypedArray(O).
+  Let len be O.[[ArrayLength]].
+  If O.[[ContentType]] is BigInt, set value to ? ToBigInt(value).
+  Otherwise, set value to ? ToNumber(value).
+  Let relativeStart be ? ToIntegerOrInfinity(start).
+  If relativeStart is -Infinity, let k be 0.
+  Else if relativeStart < 0, let k be max(len + relativeStart, 0).
+  Else, let k be min(relativeStart, len).
+  If end is undefined, let relativeEnd be len; else let relativeEnd be ? ToIntegerOrInfinity(end).
+  If relativeEnd is -Infinity, let final be 0.
+  Else if relativeEnd < 0, let final be max(len + relativeEnd, 0).
+  Else, let final be min(relativeEnd, len).
+  If IsDetachedBuffer(O.[[ViewedArrayBuffer]]) is true, throw a TypeError exception.
+  Repeat, while k < final,
+    Let Pk be ! ToString(F(k)).
+    Perform ! Set(O, Pk, value, true).
+    Set k to k + 1.
+  Return O.
+
+  IntegerIndexedElementSet ( O, index, value )
+
+  Assert: O is an Integer-Indexed exotic object.
+  If O.[[ContentType]] is BigInt, let numValue be ? ToBigInt(value).
+  Otherwise, let numValue be ? ToNumber(value).
+  Let buffer be O.[[ViewedArrayBuffer]].
+  If IsDetachedBuffer(buffer) is false and ! IsValidIntegerIndex(O, index) is true, then
+    Let offset be O.[[ByteOffset]].
+    Let arrayTypeName be the String value of O.[[TypedArrayName]].
+    Let elementSize be the Element Size value specified in Table 62 for arrayTypeName.
+    Let indexedPosition be (ℝ(index) × elementSize) + offset.
+    Let elementType be the Element Type value in Table 62 for arrayTypeName.
+    Perform SetValueInBuffer(buffer, indexedPosition, elementType, numValue, true, Unordered).
+  Return NormalCompletion(undefined).
+
+includes: [testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample;
+
+  sample = new TA([42n]);
+  sample.fill(false);
+  assert.sameValue(sample[0], 0n, "false => 0");
+
+  sample = new TA([42n]);
+  sample.fill(true);
+  assert.sameValue(sample[0], 1n, "true => 1");
+
+  sample = new TA([42n]);
+  sample.fill("7");
+  assert.sameValue(sample[0], 7n, "string conversion");
+
+  sample = new TA([42n]);
+  sample.fill({
+    toString: function() {
+      return "1";
+    },
+    valueOf: function() {
+      return 7n;
+    }
+  });
+  assert.sameValue(sample[0], 7n, "object valueOf conversion before toString");
+
+  sample = new TA([42n]);
+  sample.fill({
+    toString: function() {
+      return "7";
+    }
+  });
+  assert.sameValue(sample[0], 7n, "object toString when valueOf is absent");
+
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-relative-end.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-relative-end.js
new file mode 100644
index 0000000000..00c0cee49f
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-relative-end.js
@@ -0,0 +1,55 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: >
+  Fills all the elements from a with a custom end index.
+info: |
+  22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] )
+
+  %TypedArray%.prototype.fill is a distinct function that implements the same
+  algorithm as Array.prototype.fill as defined in 22.1.3.6 except that the this
+  object's [[ArrayLength]] internal slot is accessed in place of performing a
+  [[Get]] of "length". The implementation of the algorithm may be optimized with
+  the knowledge that the this value is an object that has a fixed length and
+  whose integer indexed properties are not sparse. However, such optimization
+  must not introduce any observable changes in the specified behaviour of the
+  algorithm.
+
+  ...
+
+  22.1.3.6 Array.prototype.fill (value [ , start [ , end ] ] )
+
+  ...
+  5. If end is undefined, let relativeEnd be len; else let relativeEnd be ?
+  ToInteger(end).
+  6. If relativeEnd < 0, let final be max((len + relativeEnd), 0); else let
+  final be min(relativeEnd, len).
+  ...
+includes: [compareArray.js, testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  assert(
+    compareArray(new TA([0n, 0n, 0n]).fill(8n, 0, 1), [8n, 0n, 0n]),
+    "Fill elements from custom end position"
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n, 0n]).fill(8n, 0, -1), [8n, 8n, 0n]),
+    "negative end sets final position to max((length + relativeEnd), 0)"
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n, 0n]).fill(8n, 0, 5), [8n, 8n, 8n]),
+    "end position is never higher than of length"
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n, 0n]).fill(8n, 0, -4), [0n, 0n, 0n]),
+    "end position is 0 when (len + relativeEnd) < 0"
+  );
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-relative-start.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-relative-start.js
new file mode 100644
index 0000000000..ec09940a0b
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-relative-start.js
@@ -0,0 +1,53 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: >
+  Fills all the elements from a with a custom start index.
+info: |
+  22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] )
+
+  %TypedArray%.prototype.fill is a distinct function that implements the same
+  algorithm as Array.prototype.fill as defined in 22.1.3.6 except that the this
+  object's [[ArrayLength]] internal slot is accessed in place of performing a
+  [[Get]] of "length". The implementation of the algorithm may be optimized with
+  the knowledge that the this value is an object that has a fixed length and
+  whose integer indexed properties are not sparse. However, such optimization
+  must not introduce any observable changes in the specified behaviour of the
+  algorithm.
+
+  ...
+
+  22.1.3.6 Array.prototype.fill (value [ , start [ , end ] ] )
+
+  ...
+  4. If relativeStart < 0, let k be max((len + relativeStart), 0); else let k be
+  min(relativeStart, len).
+  ...
+includes: [compareArray.js, testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  assert(
+    compareArray(new TA([0n, 0n, 0n]).fill(8n, 1), [0n, 8n, 8n]),
+    "Fill elements from custom start position"
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n, 0n]).fill(8n, 4), [0n, 0n, 0n]),
+    "start position is never higher than length"
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n, 0n]).fill(8n, -1), [0n, 0n, 8n]),
+    "start < 0 sets initial position to max((len + relativeStart), 0)"
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n, 0n]).fill(8n, -5), [8n, 8n, 8n]),
+    "start position is 0 when (len + relativeStart) < 0"
+  );
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-symbol-throws.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-symbol-throws.js
new file mode 100644
index 0000000000..257b5d7017
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values-symbol-throws.js
@@ -0,0 +1,60 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: >
+  Throws a TypeError if value is a Symbol
+info: |
+  %TypedArray%.prototype.fill ( value [ , start [ , end ] ] )
+
+  Let O be the this value.
+  Perform ? ValidateTypedArray(O).
+  Let len be O.[[ArrayLength]].
+  If O.[[ContentType]] is BigInt, set value to ? ToBigInt(value).
+  Otherwise, set value to ? ToNumber(value).
+  Let relativeStart be ? ToIntegerOrInfinity(start).
+  If relativeStart is -Infinity, let k be 0.
+  Else if relativeStart < 0, let k be max(len + relativeStart, 0).
+  Else, let k be min(relativeStart, len).
+  If end is undefined, let relativeEnd be len; else let relativeEnd be ? ToIntegerOrInfinity(end).
+  If relativeEnd is -Infinity, let final be 0.
+  Else if relativeEnd < 0, let final be max(len + relativeEnd, 0).
+  Else, let final be min(relativeEnd, len).
+  If IsDetachedBuffer(O.[[ViewedArrayBuffer]]) is true, throw a TypeError exception.
+  Repeat, while k < final,
+    Let Pk be ! ToString(F(k)).
+    Perform ! Set(O, Pk, value, true).
+    Set k to k + 1.
+  Return O.
+
+  IntegerIndexedElementSet ( O, index, value )
+
+  Assert: O is an Integer-Indexed exotic object.
+  If O.[[ContentType]] is BigInt, let numValue be ? ToBigInt(value).
+  Otherwise, let numValue be ? ToNumber(value).
+  Let buffer be O.[[ViewedArrayBuffer]].
+  If IsDetachedBuffer(buffer) is false and ! IsValidIntegerIndex(O, index) is true, then
+    Let offset be O.[[ByteOffset]].
+    Let arrayTypeName be the String value of O.[[TypedArrayName]].
+    Let elementSize be the Element Size value specified in Table 62 for arrayTypeName.
+    Let indexedPosition be (ℝ(index) × elementSize) + offset.
+    Let elementType be the Element Type value in Table 62 for arrayTypeName.
+    Perform SetValueInBuffer(buffer, indexedPosition, elementType, numValue, true, Unordered).
+  Return NormalCompletion(undefined).
+
+
+includes: [testBigIntTypedArray.js]
+features: [BigInt, Symbol, TypedArray]
+---*/
+
+var s = Symbol('1');
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample = new TA(1);
+
+  assert.throws(TypeError, function() {
+    sample.fill(s);
+  });
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values.js
new file mode 100644
index 0000000000..96cde20493
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/fill-values.js
@@ -0,0 +1,46 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: >
+  Fills all the elements with `value` from a default start and index.
+info: |
+  22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] )
+
+  %TypedArray%.prototype.fill is a distinct function that implements the same
+  algorithm as Array.prototype.fill as defined in 22.1.3.6 except that the this
+  object's [[ArrayLength]] internal slot is accessed in place of performing a
+  [[Get]] of "length". The implementation of the algorithm may be optimized with
+  the knowledge that the this value is an object that has a fixed length and
+  whose integer indexed properties are not sparse. However, such optimization
+  must not introduce any observable changes in the specified behaviour of the
+  algorithm.
+
+  ...
+
+  22.1.3.6 Array.prototype.fill (value [ , start [ , end ] ] )
+
+  ...
+  7. Repeat, while k < final
+    a. Let Pk be ! ToString(k).
+    b. Perform ? Set(O, Pk, value, true).
+includes: [compareArray.js, testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  assert(
+    compareArray(
+      new TA().fill(8n),
+      []
+    ),
+    "does not fill an empty instance"
+  );
+
+  assert(
+    compareArray(new TA([0n, 0n, 0n]).fill(8n), [8n, 8n, 8n]),
+    "Default start and end indexes are 0 and this.length"
+  );
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/get-length-ignores-length-prop.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/get-length-ignores-length-prop.js
new file mode 100644
index 0000000000..dec320a415
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/get-length-ignores-length-prop.js
@@ -0,0 +1,53 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: >
+  Unreachable abrupt from Get(O, "length") as [[ArrayLength]] is returned.
+info: |
+  22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] )
+
+  %TypedArray%.prototype.fill is a distinct function that implements the same
+  algorithm as Array.prototype.fill as defined in 22.1.3.6 except that the this
+  object's [[ArrayLength]] internal slot is accessed in place of performing a
+  [[Get]] of "length". The implementation of the algorithm may be optimized with
+  the knowledge that the this value is an object that has a fixed length and
+  whose integer indexed properties are not sparse. However, such optimization
+  must not introduce any observable changes in the specified behaviour of the
+  algorithm.
+
+  ...
+
+  22.1.3.6 Array.prototype.fill (value [ , start [ , end ] ] )
+
+  1. Let O be ? ToObject(this value).
+  2. Let len be ? ToLength(? Get(O, "length")).
+  ...
+includes: [testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+Object.defineProperty(TypedArray.prototype, "length", {
+  get: function() {
+    throw new Test262Error();
+  }
+});
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  Object.defineProperty(TA.prototype, "length", {
+    get: function() {
+      throw new Test262Error();
+    }
+  });
+
+  var sample = new TA(1);
+  Object.defineProperty(sample, "length", {
+    get: function() {
+      throw new Test262Error();
+    }
+  });
+
+  assert.sameValue(sample.fill(1n, 0), sample);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-end-as-symbol.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-end-as-symbol.js
new file mode 100644
index 0000000000..6dac568fb4
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-end-as-symbol.js
@@ -0,0 +1,40 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: >
+  Return abrupt if end is a Symbol.
+info: |
+  22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] )
+
+  %TypedArray%.prototype.fill is a distinct function that implements the same
+  algorithm as Array.prototype.fill as defined in 22.1.3.6 except that the this
+  object's [[ArrayLength]] internal slot is accessed in place of performing a
+  [[Get]] of "length". The implementation of the algorithm may be optimized with
+  the knowledge that the this value is an object that has a fixed length and
+  whose integer indexed properties are not sparse. However, such optimization
+  must not introduce any observable changes in the specified behaviour of the
+  algorithm.
+
+  ...
+
+  22.1.3.6 Array.prototype.fill (value [ , start [ , end ] ] )
+
+  ...
+  5. If end is undefined, let relativeEnd be len; else let relativeEnd be ?
+  ToInteger(end).
+  ...
+includes: [testBigIntTypedArray.js]
+features: [BigInt, Symbol, TypedArray]
+---*/
+
+var end = Symbol(1);
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample = new TA();
+  assert.throws(TypeError, function() {
+    sample.fill(1n, 0, end);
+  });
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-end.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-end.js
new file mode 100644
index 0000000000..b329771ae3
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-end.js
@@ -0,0 +1,44 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: >
+  Return abrupt from ToInteger(end).
+info: |
+  22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] )
+
+  %TypedArray%.prototype.fill is a distinct function that implements the same
+  algorithm as Array.prototype.fill as defined in 22.1.3.6 except that the this
+  object's [[ArrayLength]] internal slot is accessed in place of performing a
+  [[Get]] of "length". The implementation of the algorithm may be optimized with
+  the knowledge that the this value is an object that has a fixed length and
+  whose integer indexed properties are not sparse. However, such optimization
+  must not introduce any observable changes in the specified behaviour of the
+  algorithm.
+
+  ...
+
+  22.1.3.6 Array.prototype.fill (value [ , start [ , end ] ] )
+
+  ...
+  5. If end is undefined, let relativeEnd be len; else let relativeEnd be ?
+  ToInteger(end).
+  ...
+includes: [testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+var end = {
+  valueOf: function() {
+    throw new Test262Error();
+  }
+};
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample = new TA();
+  assert.throws(Test262Error, function() {
+    sample.fill(1n, 0, end);
+  });
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-set-value.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-set-value.js
new file mode 100644
index 0000000000..9f46b32318
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-set-value.js
@@ -0,0 +1,63 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: >
+  Returns abrupt from value set
+info: |
+  %TypedArray%.prototype.fill ( value [ , start [ , end ] ] )
+
+  Let O be the this value.
+  Perform ? ValidateTypedArray(O).
+  Let len be O.[[ArrayLength]].
+  If O.[[ContentType]] is BigInt, set value to ? ToBigInt(value).
+  Otherwise, set value to ? ToNumber(value).
+  Let relativeStart be ? ToIntegerOrInfinity(start).
+  If relativeStart is -Infinity, let k be 0.
+  Else if relativeStart < 0, let k be max(len + relativeStart, 0).
+  Else, let k be min(relativeStart, len).
+  If end is undefined, let relativeEnd be len; else let relativeEnd be ? ToIntegerOrInfinity(end).
+  If relativeEnd is -Infinity, let final be 0.
+  Else if relativeEnd < 0, let final be max(len + relativeEnd, 0).
+  Else, let final be min(relativeEnd, len).
+  If IsDetachedBuffer(O.[[ViewedArrayBuffer]]) is true, throw a TypeError exception.
+  Repeat, while k < final,
+    Let Pk be ! ToString(F(k)).
+    Perform ! Set(O, Pk, value, true).
+    Set k to k + 1.
+  Return O.
+
+  IntegerIndexedElementSet ( O, index, value )
+
+  Assert: O is an Integer-Indexed exotic object.
+  If O.[[ContentType]] is BigInt, let numValue be ? ToBigInt(value).
+  Otherwise, let numValue be ? ToNumber(value).
+  Let buffer be O.[[ViewedArrayBuffer]].
+  If IsDetachedBuffer(buffer) is false and ! IsValidIntegerIndex(O, index) is true, then
+    Let offset be O.[[ByteOffset]].
+    Let arrayTypeName be the String value of O.[[TypedArrayName]].
+    Let elementSize be the Element Size value specified in Table 62 for arrayTypeName.
+    Let indexedPosition be (ℝ(index) × elementSize) + offset.
+    Let elementType be the Element Type value in Table 62 for arrayTypeName.
+    Perform SetValueInBuffer(buffer, indexedPosition, elementType, numValue, true, Unordered).
+  Return NormalCompletion(undefined).
+
+
+includes: [testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample = new TA([42n]);
+  var obj = {
+    valueOf: function() {
+      throw new Test262Error();
+    }
+  };
+
+  assert.throws(Test262Error, function() {
+    sample.fill(obj);
+  });
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-start-as-symbol.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-start-as-symbol.js
new file mode 100644
index 0000000000..c1391a13dc
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-start-as-symbol.js
@@ -0,0 +1,39 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: >
+  Return abrupt from ToInteger(start) as a Symbol.
+info: |
+  22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] )
+
+  %TypedArray%.prototype.fill is a distinct function that implements the same
+  algorithm as Array.prototype.fill as defined in 22.1.3.6 except that the this
+  object's [[ArrayLength]] internal slot is accessed in place of performing a
+  [[Get]] of "length". The implementation of the algorithm may be optimized with
+  the knowledge that the this value is an object that has a fixed length and
+  whose integer indexed properties are not sparse. However, such optimization
+  must not introduce any observable changes in the specified behaviour of the
+  algorithm.
+
+  ...
+
+  22.1.3.6 Array.prototype.fill (value [ , start [ , end ] ] )
+
+  ...
+  3. Let relativeStart be ? ToInteger(start).
+  ...
+includes: [testBigIntTypedArray.js]
+features: [BigInt, Symbol, TypedArray]
+---*/
+
+var start = Symbol(1);
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample = new TA();
+  assert.throws(TypeError, function() {
+    sample.fill(1n, start);
+  });
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-start.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-start.js
new file mode 100644
index 0000000000..7e9f04c49e
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-start.js
@@ -0,0 +1,43 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: >
+  Return abrupt from ToInteger(start).
+info: |
+  22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] )
+
+  %TypedArray%.prototype.fill is a distinct function that implements the same
+  algorithm as Array.prototype.fill as defined in 22.1.3.6 except that the this
+  object's [[ArrayLength]] internal slot is accessed in place of performing a
+  [[Get]] of "length". The implementation of the algorithm may be optimized with
+  the knowledge that the this value is an object that has a fixed length and
+  whose integer indexed properties are not sparse. However, such optimization
+  must not introduce any observable changes in the specified behaviour of the
+  algorithm.
+
+  ...
+
+  22.1.3.6 Array.prototype.fill (value [ , start [ , end ] ] )
+
+  ...
+  3. Let relativeStart be ? ToInteger(start).
+  ...
+includes: [testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+var start = {
+  valueOf: function() {
+    throw new Test262Error();
+  }
+};
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample = new TA();
+  assert.throws(Test262Error, function() {
+    sample.fill(1n, start);
+  });
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-this-out-of-bounds.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-this-out-of-bounds.js
new file mode 100644
index 0000000000..6d800ebd2d
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-abrupt-from-this-out-of-bounds.js
@@ -0,0 +1,62 @@
+// |reftest| shell-option(--enable-arraybuffer-resizable) skip-if(!ArrayBuffer.prototype.resize||!xulRuntime.shell) -- resizable-arraybuffer is not enabled unconditionally, requires shell-options
+// Copyright (C) 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: Return abrupt when "this" value fails buffer boundary checks
+includes: [testBigIntTypedArray.js]
+features: [ArrayBuffer, BigInt, TypedArray, arrow-function, resizable-arraybuffer]
+---*/
+
+assert.sameValue(
+  typeof TypedArray.prototype.fill,
+  'function',
+  'implements TypedArray.prototype.fill'
+);
+
+assert.sameValue(
+  typeof ArrayBuffer.prototype.resize,
+  'function',
+  'implements ArrayBuffer.prototype.resize'
+);
+
+testWithBigIntTypedArrayConstructors(TA => {
+  var BPE = TA.BYTES_PER_ELEMENT;
+  var ab = new ArrayBuffer(BPE * 4, {maxByteLength: BPE * 5});
+  var array = new TA(ab, BPE, 2);
+
+  try {
+    ab.resize(BPE * 5);
+  } catch (_) {}
+
+  // no error following grow:
+  array.fill(0n);
+
+  try {
+    ab.resize(BPE * 3);
+  } catch (_) {}
+
+  // no error following shrink (within bounds):
+  array.fill(0n);
+
+  var expectedError;
+  try {
+    ab.resize(BPE * 2);
+    // If the preceding "resize" operation is successful, the typed array will
+    // be out out of bounds, so the subsequent prototype method should produce
+    // a TypeError due to the semantics of ValidateTypedArray.
+    expectedError = TypeError;
+  } catch (_) {
+    // The host is permitted to fail any "resize" operation at its own
+    // discretion. If that occurs, the fill operation should complete
+    // successfully.
+    expectedError = Test262Error;
+  }
+
+  assert.throws(expectedError, () => {
+    array.fill(0n);
+    throw new Test262Error('fill completed successfully');
+  });
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-this.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-this.js
new file mode 100644
index 0000000000..c9ab8f15d7
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/return-this.js
@@ -0,0 +1,22 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.fill
+description: >
+  Returns `this`.
+includes: [testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample1 = new TA();
+  var result1 = sample1.fill(1n);
+
+  assert.sameValue(result1, sample1);
+
+  var sample2 = new TA(42);
+  var result2 = sample2.fill(7n);
+  assert.sameValue(result2, sample2);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/shell.js b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/shell.js
new file mode 100644
index 0000000000..90ee9c114d
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/fill/BigInt/shell.js
@@ -0,0 +1,42 @@
+// GENERATED, DO NOT EDIT
+// file: testBigIntTypedArray.js
+// Copyright (C) 2015 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: |
+    Collection of functions used to assert the correctness of BigInt TypedArray objects.
+defines:
+  - TypedArray
+  - testWithBigIntTypedArrayConstructors
+---*/
+
+/**
+ * The %TypedArray% intrinsic constructor function.
+ */
+var TypedArray = Object.getPrototypeOf(Int8Array);
+
+/**
+ * Calls the provided function for every typed array constructor.
+ *
+ * @param {typedArrayConstructorCallback} f - the function to call for each typed array constructor.
+ * @param {Array} selected - An optional Array with filtered typed arrays
+ */
+function testWithBigIntTypedArrayConstructors(f, selected) {
+  /**
+   * Array containing every BigInt typed array constructor.
+   */
+  var constructors = selected || [
+    BigInt64Array,
+    BigUint64Array
+  ];
+
+  for (var i = 0; i < constructors.length; ++i) {
+    var constructor = constructors[i];
+    try {
+      f(constructor);
+    } catch (e) {
+      e.message += " (Testing with " + constructor.name + ".)";
+      throw e;
+    }
+  }
+}