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v8/test/mjsunit/harmony/dataview-accessors.js
bakkot a3c13435aa Reland of Amend DataView, ArrayBuffer, and TypedArray methods to use ToIndex. (patchset #2 id:170001 of https://codereview.chromium.org/2113593002/ ) 
Reason for revert:
WebGL tests have been updated and rolled (at https://codereview.chromium.org/2227023002), so this should no longer fail outdated tests.

Original issue's description:
> Revert of Amend DataView, ArrayBuffer, and TypedArray methods to use ToIndex. (patchset #8 id:140001 of https://codereview.chromium.org/2090353003/ )
>
> Reason for revert:
> Speculative revert to unblock roll: https://codereview.chromium.org/2107223003/
>
> Original issue's description:
> > Amend DataView, ArrayBuffer, and TypedArray methods to use ToIndex.
> >
> > The spec was modified to relax some requirements which implementors had not been
> > enforcing. Part of this process involved introducing a new abstract operation
> > ToIndex, which had partial overlap with our existing semantics as well as some
> > differences (most notably treating undefined as 0). Test262 tests were introduced to
> > check for the new semantics, some of which we were failing. This patch amends the
> > parts of our implementation corresponding to specification algorithms which use
> > ToIndex to follow its semantics precisely.
> >
> > BUG=v8:4784,v8:5120
> >
> > Committed: https://crrev.com/09720349ea058d178521ec58d0a5676443a5a132
> > Cr-Commit-Position: refs/heads/master@{#37406}
>
> TBR=littledan@chromium.org,adamk@chromium.org,bakkot@google.com
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:4784,v8:5120
>
> Committed: https://crrev.com/b1f7f1f4e41a723d5f997738a07e35a031713b8f
> Cr-Commit-Position: refs/heads/master@{#37417}

TBR=littledan@chromium.org,adamk@chromium.org,hablich@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=v8:4784,v8:5120

Review-Url: https://codereview.chromium.org/2247073004
Cr-Commit-Position: refs/heads/master@{#38689}
2016-08-17 17:38:56 +00:00

452 lines
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JavaScript
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// Copyright 2013 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// These tests are adapted from Khronos DataView tests
var intArray1 =
[0, 1, 2, 3, 100, 101, 102, 103, 128, 129, 130, 131, 252, 253, 254, 255];
var intArray2 =
[31, 32, 33, 0, 1, 2, 3, 100, 101, 102, 103, 128, 129, 130, 131, 252,
253, 254, 255];
var initialArray =
[204, 204, 204, 204, 204, 204, 204, 204, 204, 204, 204, 204, 204,
204, 204, 204];
var arayBuffer = null;
var view = null;
var viewStart = 0;
var viewLength = 0;
function getElementSize(func) {
switch (func) {
case "Int8":
case "Uint8":
return 1;
case "Int16":
case "Uint16":
return 2;
case "Int32":
case "Uint32":
case "Float32":
return 4;
case "Float64":
return 8;
default:
assertUnreachable(func);
}
}
function checkGet(func, index, expected, littleEndian) {
function doGet() {
if (littleEndian != undefined)
return view["get" + func](index, littleEndian);
else
return view["get" + func](index);
}
if (index >=0 && index + getElementSize(func) - 1 < view.byteLength)
assertSame(expected, doGet());
else
assertThrows(doGet, RangeError);
}
function checkSet(func, index, value, littleEndian) {
function doSet() {
if (littleEndian != undefined)
view["set" + func](index, value, littleEndian);
else
view["set" + func](index, value);
}
if (index >= 0 &&
index + getElementSize(func) - 1 < view.byteLength) {
assertSame(undefined, doSet());
checkGet(func, index, value, littleEndian);
} else {
assertThrows(doSet, RangeError);
}
}
function test(isTestingGet, func, index, value, littleEndian) {
if (isTestingGet)
checkGet(func, index, value, littleEndian);
else
checkSet(func, index, value, littleEndian);
}
function createDataView(
array, frontPaddingNum, littleEndian, start, length) {
if (!littleEndian)
array.reverse();
var paddingArray = new Array(frontPaddingNum);
arrayBuffer = (new Uint8Array(paddingArray.concat(array))).buffer;
view = new DataView(arrayBuffer, viewStart, viewLength);
if (!littleEndian)
array.reverse(); // restore the array.
}
function runIntegerTestCases(isTestingGet, array, start, length) {
createDataView(array, 0, true, start, length);
test(isTestingGet, "Int8", 0, 0);
test(isTestingGet, "Int8", undefined, 0);
test(isTestingGet, "Int8", 8, -128);
test(isTestingGet, "Int8", 15, -1);
test(isTestingGet, "Int8", 1e12, undefined);
test(isTestingGet, "Uint8", 0, 0);
test(isTestingGet, "Uint8", undefined, 0);
test(isTestingGet, "Uint8", 8, 128);
test(isTestingGet, "Uint8", 15, 255);
test(isTestingGet, "Uint8", 1e12, undefined);
// Little endian.
test(isTestingGet, "Int16", 0, 256, true);
test(isTestingGet, "Int16", undefined, 256, true);
test(isTestingGet, "Int16", 5, 26213, true);
test(isTestingGet, "Int16", 9, -32127, true);
test(isTestingGet, "Int16", 14, -2, true);
test(isTestingGet, "Int16", 1e12, undefined, true);
// Big endian.
test(isTestingGet, "Int16", 0, 1);
test(isTestingGet, "Int16", undefined, 1);
test(isTestingGet, "Int16", 5, 25958);
test(isTestingGet, "Int16", 9, -32382);
test(isTestingGet, "Int16", 14, -257);
test(isTestingGet, "Int16", 1e12, undefined);
// Little endian.
test(isTestingGet, "Uint16", 0, 256, true);
test(isTestingGet, "Uint16", undefined, 256, true);
test(isTestingGet, "Uint16", 5, 26213, true);
test(isTestingGet, "Uint16", 9, 33409, true);
test(isTestingGet, "Uint16", 14, 65534, true);
test(isTestingGet, "Uint16", 1e12, undefined, true);
// Big endian.
test(isTestingGet, "Uint16", 0, 1);
test(isTestingGet, "Uint16", undefined, 1);
test(isTestingGet, "Uint16", 5, 25958);
test(isTestingGet, "Uint16", 9, 33154);
test(isTestingGet, "Uint16", 14, 65279);
test(isTestingGet, "Uint16", 1e12, undefined);
// Little endian.
test(isTestingGet, "Int32", 0, 50462976, true);
test(isTestingGet, "Int32", undefined, 50462976, true);
test(isTestingGet, "Int32", 3, 1717920771, true);
test(isTestingGet, "Int32", 6, -2122291354, true);
test(isTestingGet, "Int32", 9, -58490239, true);
test(isTestingGet, "Int32", 12,-66052, true);
test(isTestingGet, "Int32", 1e12, undefined, true);
// Big endian.
test(isTestingGet, "Int32", 0, 66051);
test(isTestingGet, "Int32", undefined, 66051);
test(isTestingGet, "Int32", 3, 56911206);
test(isTestingGet, "Int32", 6, 1718059137);
test(isTestingGet, "Int32", 9, -2122152964);
test(isTestingGet, "Int32", 12, -50462977);
test(isTestingGet, "Int32", 1e12, undefined);
// Little endian.
test(isTestingGet, "Uint32", 0, 50462976, true);
test(isTestingGet, "Uint32", undefined, 50462976, true);
test(isTestingGet, "Uint32", 3, 1717920771, true);
test(isTestingGet, "Uint32", 6, 2172675942, true);
test(isTestingGet, "Uint32", 9, 4236477057, true);
test(isTestingGet, "Uint32", 12,4294901244, true);
test(isTestingGet, "Uint32", 1e12, undefined, true);
// Big endian.
test(isTestingGet, "Uint32", 0, 66051);
test(isTestingGet, "Uint32", undefined, 66051);
test(isTestingGet, "Uint32", 3, 56911206);
test(isTestingGet, "Uint32", 6, 1718059137);
test(isTestingGet, "Uint32", 9, 2172814332);
test(isTestingGet, "Uint32", 12, 4244504319);
test(isTestingGet, "Uint32", 1e12, undefined);
}
function testFloat(isTestingGet, func, array, start, expected) {
// Little endian.
createDataView(array, 0, true, start);
test(isTestingGet, func, 0, expected, true);
test(isTestingGet, func, undefined, expected, true);
createDataView(array, 3, true, start);
test(isTestingGet, func, 3, expected, true);
createDataView(array, 7, true, start);
test(isTestingGet, func, 7, expected, true);
createDataView(array, 10, true, start);
test(isTestingGet, func, 10, expected, true);
test(isTestingGet, func, 1e12, undefined, true);
// Big endian.
createDataView(array, 0, false);
test(isTestingGet, func, 0, expected, false);
test(isTestingGet, func, undefined, expected, false);
createDataView(array, 3, false);
test(isTestingGet, func, 3, expected, false);
createDataView(array, 7, false);
test(isTestingGet, func, 7, expected, false);
createDataView(array, 10, false);
test(isTestingGet, func, 10, expected, false);
test(isTestingGet, func, 1e12, undefined, false);
}
function runFloatTestCases(isTestingGet, start) {
testFloat(isTestingGet, "Float32",
isTestingGet ? [0, 0, 32, 65] : initialArray, start, 10);
testFloat(isTestingGet, "Float32",
isTestingGet ? [164, 112, 157, 63] : initialArray,
start, 1.2300000190734863);
testFloat(isTestingGet, "Float32",
isTestingGet ? [95, 53, 50, 199] : initialArray,
start, -45621.37109375);
testFloat(isTestingGet, "Float32",
isTestingGet ? [255, 255, 255, 127] : initialArray,
start, NaN);
testFloat(isTestingGet, "Float32",
isTestingGet ? [255, 255, 255, 255] : initialArray,
start, -NaN);
testFloat(isTestingGet, "Float64",
isTestingGet ? [0, 0, 0, 0, 0, 0, 36, 64] : initialArray,
start, 10);
testFloat(isTestingGet, "Float64",
isTestingGet ? [174, 71, 225, 122, 20, 174, 243, 63] : initialArray,
start, 1.23);
testFloat(isTestingGet, "Float64",
isTestingGet ? [181, 55, 248, 30, 242, 179, 87, 193] : initialArray,
start, -6213576.4839);
testFloat(isTestingGet, "Float64",
isTestingGet ? [255, 255, 255, 255, 255, 255, 255, 127] : initialArray,
start, NaN);
testFloat(isTestingGet, "Float64",
isTestingGet ? [255, 255, 255, 255, 255, 255, 255, 255] : initialArray,
start, -NaN);
}
function runNegativeIndexTests(isTestingGet) {
createDataView(intArray1, 0, true, 0, 16);
test(isTestingGet, "Int8", -1, 0);
test(isTestingGet, "Int8", -2, 0);
test(isTestingGet, "Uint8", -1, 0);
test(isTestingGet, "Uint8", -2, 0);
test(isTestingGet, "Int16", -1, 1);
test(isTestingGet, "Int16", -2, 1);
test(isTestingGet, "Int16", -3, 1);
test(isTestingGet, "Uint16", -1, 1);
test(isTestingGet, "Uint16", -2, 1);
test(isTestingGet, "Uint16", -3, 1);
test(isTestingGet, "Int32", -1, 66051);
test(isTestingGet, "Int32", -3, 66051);
test(isTestingGet, "Int32", -5, 66051);
test(isTestingGet, "Uint32", -1, 66051);
test(isTestingGet, "Uint32", -3, 66051);
test(isTestingGet, "Uint32", -5, 66051);
createDataView([0, 0, 0, 0, 0, 0, 0, 0], 0, true, 0, 8);
test(isTestingGet, "Float32", -1, 0);
test(isTestingGet, "Float32", -3, 0);
test(isTestingGet, "Float32", -5, 0);
test(isTestingGet, "Float64", -1, 0);
test(isTestingGet, "Float64", -5, 0);
test(isTestingGet, "Float64", -9, 0);
}
function TestGetters() {
runIntegerTestCases(true, intArray1, 0, 16);
runFloatTestCases(true, 0);
runIntegerTestCases(true, intArray2, 3, 2);
runFloatTestCases(true, 3);
runNegativeIndexTests(true);
}
function TestSetters() {
runIntegerTestCases(false, initialArray, 0, 16);
runFloatTestCases(false);
runIntegerTestCases(false, initialArray, 3, 2);
runFloatTestCases(false, 7);
runNegativeIndexTests(false);
}
TestGetters();
TestSetters();
function CheckOutOfRangeInt8(value, expected) {
var view = new DataView(new ArrayBuffer(100));
assertSame(undefined, view.setInt8(0, value));
assertSame(expected, view.getInt8(0));
assertSame(undefined, view.setInt8(0, value, true));
assertSame(expected, view.getInt8(0, true));
}
function CheckOutOfRangeUint8(value, expected) {
var view = new DataView(new ArrayBuffer(100));
assertSame(undefined, view.setUint8(0, value));
assertSame(expected, view.getUint8(0));
assertSame(undefined, view.setUint8(0, value, true));
assertSame(expected, view.getUint8(0, true));
}
function CheckOutOfRangeInt16(value, expected) {
var view = new DataView(new ArrayBuffer(100));
assertSame(undefined, view.setInt16(0, value));
assertSame(expected, view.getInt16(0));
assertSame(undefined, view.setInt16(0, value, true));
assertSame(expected, view.getInt16(0, true));
}
function CheckOutOfRangeUint16(value, expected) {
var view = new DataView(new ArrayBuffer(100));
assertSame(undefined, view.setUint16(0, value));
assertSame(expected, view.getUint16(0));
assertSame(undefined, view.setUint16(0, value, true));
assertSame(expected, view.getUint16(0, true));
}
function CheckOutOfRangeInt32(value, expected) {
var view = new DataView(new ArrayBuffer(100));
assertSame(undefined, view.setInt32(0, value));
assertSame(expected, view.getInt32(0));
assertSame(undefined, view.setInt32(0, value, true));
assertSame(expected, view.getInt32(0, true));
}
function CheckOutOfRangeUint32(value, expected) {
var view = new DataView(new ArrayBuffer(100));
assertSame(undefined, view.setUint32(0, value));
assertSame(expected, view.getUint32(0));
assertSame(undefined, view.setUint32(0, value, true));
assertSame(expected, view.getUint32(0, true));
}
function TestOutOfRange() {
CheckOutOfRangeInt8(0x80, -0x80);
CheckOutOfRangeInt8(0x1000, 0);
CheckOutOfRangeInt8(-0x81, 0x7F);
CheckOutOfRangeUint8(0x100, 0);
CheckOutOfRangeUint8(0x1000, 0);
CheckOutOfRangeUint8(-0x80, 0x80);
CheckOutOfRangeUint8(-1, 0xFF);
CheckOutOfRangeUint8(-0xFF, 1);
CheckOutOfRangeInt16(0x8000, -0x8000);
CheckOutOfRangeInt16(0x10000, 0);
CheckOutOfRangeInt16(-0x8001, 0x7FFF);
CheckOutOfRangeUint16(0x10000, 0);
CheckOutOfRangeUint16(0x100000, 0);
CheckOutOfRangeUint16(-0x8000, 0x8000);
CheckOutOfRangeUint16(-1, 0xFFFF);
CheckOutOfRangeUint16(-0xFFFF, 1);
CheckOutOfRangeInt32(0x80000000, -0x80000000);
CheckOutOfRangeInt32(0x100000000, 0);
CheckOutOfRangeInt32(-0x80000001, 0x7FFFFFFF);
CheckOutOfRangeUint32(0x100000000, 0);
CheckOutOfRangeUint32(0x1000000000, 0);
CheckOutOfRangeUint32(-0x80000000, 0x80000000);
CheckOutOfRangeUint32(-1, 0xFFFFFFFF);
CheckOutOfRangeUint32(-0xFFFFFFFF, 1);
}
TestOutOfRange();
function TestGeneralAccessors() {
var a = new DataView(new ArrayBuffer(256));
function CheckAccessor(name) {
var f = a[name];
assertThrows(function() { f(); }, TypeError);
f.call(a, 0, 0); // should not throw
assertThrows(function() { f.call({}, 0, 0); }, TypeError);
f.call(a);
f.call(a, 1); // should not throw
}
CheckAccessor("getUint8");
CheckAccessor("setUint8");
CheckAccessor("getInt8");
CheckAccessor("setInt8");
CheckAccessor("getUint16");
CheckAccessor("setUint16");
CheckAccessor("getInt16");
CheckAccessor("setInt16");
CheckAccessor("getUint32");
CheckAccessor("setUint32");
CheckAccessor("getInt32");
CheckAccessor("setInt32");
CheckAccessor("getFloat32");
CheckAccessor("setFloat32");
CheckAccessor("getFloat64");
CheckAccessor("setFloat64");
}
TestGeneralAccessors();
function TestInsufficientArguments() {
var a = new DataView(new ArrayBuffer(256));
function CheckInsuficientArguments(type) {
var expectedValue = type === "Float32" || type === "Float64" ? NaN : 0;
var offset = getElementSize(type);
assertSame(undefined, a["set" + type](0, 7));
assertSame(undefined, a["set" + type]());
assertSame(expectedValue, a["get" + type]());
assertSame(undefined, a["set" + type](offset, 7));
assertSame(undefined, a["set" + type](offset));
assertSame(expectedValue, a["get" + type](offset));
}
CheckInsuficientArguments("Uint8");
CheckInsuficientArguments("Int8");
CheckInsuficientArguments("Uint16");
CheckInsuficientArguments("Int16");
CheckInsuficientArguments("Uint32");
CheckInsuficientArguments("Int32");
CheckInsuficientArguments("Float32");
CheckInsuficientArguments("Float64");
}
TestInsufficientArguments();
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