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Change DataView accessors behavior for insufficient args.

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ES6 spec for DataView is not fully finished, but Blink, WebKit and
Firefox agree in that for DataView use of getters/setters with no
arguments should result in exceptions, while undefined offset argument
is the same as zero.

R=bmeurer@chromium.org, rossberg@chromium.org

Review URL: https://codereview.chromium.org/18313007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15607 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
dslomov@chromium.org 2013-07-10 16:18:59 +00:00
parent 6efe8ca229
commit 5eb63e483d
2 changed files with 68 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
src/typedarray.js
View File

@ -259,6 +259,9 @@ function DataViewGetInt8(offset, little_endian) {
throw MakeTypeError('incompatible_method_reciever',
['DataView.getInt8', this]);
}
if (%_ArgumentsLength() < 1) {
throw MakeTypeError('invalid_argument');
}
return %DataViewGetInt8(this,
ToPositiveDataViewOffset(offset),
!!little_endian);
@ -269,6 +272,9 @@ function DataViewSetInt8(offset, value, little_endian) {
throw MakeTypeError('incompatible_method_reciever',
['DataView.setInt8', this]);
}
if (%_ArgumentsLength() < 1) {
throw MakeTypeError('invalid_argument');
}
%DataViewSetInt8(this,
ToPositiveDataViewOffset(offset),
TO_NUMBER_INLINE(value),
@ -280,6 +286,9 @@ function DataViewGetUint8(offset, little_endian) {
throw MakeTypeError('incompatible_method_reciever',
['DataView.getUint8', this]);
}
if (%_ArgumentsLength() < 1) {
throw MakeTypeError('invalid_argument');
}
return %DataViewGetUint8(this,
ToPositiveDataViewOffset(offset),
!!little_endian);
@ -290,6 +299,9 @@ function DataViewSetUint8(offset, value, little_endian) {
throw MakeTypeError('incompatible_method_reciever',
['DataView.setUint8', this]);
}
if (%_ArgumentsLength() < 1) {
throw MakeTypeError('invalid_argument');
}
%DataViewSetUint8(this,
ToPositiveDataViewOffset(offset),
TO_NUMBER_INLINE(value),
@ -301,6 +313,9 @@ function DataViewGetInt16(offset, little_endian) {
throw MakeTypeError('incompatible_method_reciever',
['DataView.getInt16', this]);
}
if (%_ArgumentsLength() < 1) {
throw MakeTypeError('invalid_argument');
}
return %DataViewGetInt16(this,
ToPositiveDataViewOffset(offset),
!!little_endian);
@ -311,6 +326,9 @@ function DataViewSetInt16(offset, value, little_endian) {
throw MakeTypeError('incompatible_method_reciever',
['DataView.setInt16', this]);
}
if (%_ArgumentsLength() < 1) {
throw MakeTypeError('invalid_argument');
}
%DataViewSetInt16(this,
ToPositiveDataViewOffset(offset),
TO_NUMBER_INLINE(value),
@ -322,6 +340,9 @@ function DataViewGetUint16(offset, little_endian) {
throw MakeTypeError('incompatible_method_reciever',
['DataView.getUint16', this]);
}
if (%_ArgumentsLength() < 1) {
throw MakeTypeError('invalid_argument');
}
return %DataViewGetUint16(this,
ToPositiveDataViewOffset(offset),
!!little_endian);
@ -332,6 +353,9 @@ function DataViewSetUint16(offset, value, little_endian) {
throw MakeTypeError('incompatible_method_reciever',
['DataView.setUint16', this]);
}
if (%_ArgumentsLength() < 1) {
throw MakeTypeError('invalid_argument');
}
%DataViewSetUint16(this,
ToPositiveDataViewOffset(offset),
TO_NUMBER_INLINE(value),
@ -343,6 +367,9 @@ function DataViewGetInt32(offset, little_endian) {
throw MakeTypeError('incompatible_method_reciever',
['DataView.getInt32', this]);
}
if (%_ArgumentsLength() < 1) {
throw MakeTypeError('invalid_argument');
}
return %DataViewGetInt32(this,
ToPositiveDataViewOffset(offset),
!!little_endian);
@ -353,6 +380,9 @@ function DataViewSetInt32(offset, value, little_endian) {
throw MakeTypeError('incompatible_method_reciever',
['DataView.setInt32', this]);
}
if (%_ArgumentsLength() < 2) {
throw MakeTypeError('invalid_argument');
}
%DataViewSetInt32(this,
ToPositiveDataViewOffset(offset),
TO_NUMBER_INLINE(value),
@ -364,6 +394,9 @@ function DataViewGetUint32(offset, little_endian) {
throw MakeTypeError('incompatible_method_reciever',
['DataView.getUint32', this]);
}
if (%_ArgumentsLength() < 1) {
throw MakeTypeError('invalid_argument');
}
return %DataViewGetUint32(this,
ToPositiveDataViewOffset(offset),
!!little_endian);
@ -374,6 +407,9 @@ function DataViewSetUint32(offset, value, little_endian) {
throw MakeTypeError('incompatible_method_reciever',
['DataView.setUint32', this]);
}
if (%_ArgumentsLength() < 1) {
throw MakeTypeError('invalid_argument');
}
%DataViewSetUint32(this,
ToPositiveDataViewOffset(offset),
TO_NUMBER_INLINE(value),
@ -385,6 +421,9 @@ function DataViewGetFloat32(offset, little_endian) {
throw MakeTypeError('incompatible_method_reciever',
['DataView.getFloat32', this]);
}
if (%_ArgumentsLength() < 1) {
throw MakeTypeError('invalid_argument');
}
return %DataViewGetFloat32(this,
ToPositiveDataViewOffset(offset),
!!little_endian);
@ -395,6 +434,9 @@ function DataViewSetFloat32(offset, value, little_endian) {
throw MakeTypeError('incompatible_method_reciever',
['DataView.setFloat32', this]);
}
if (%_ArgumentsLength() < 1) {
throw MakeTypeError('invalid_argument');
}
%DataViewSetFloat32(this,
ToPositiveDataViewOffset(offset),
TO_NUMBER_INLINE(value),
@ -406,9 +448,8 @@ function DataViewGetFloat64(offset, little_endian) {
throw MakeTypeError('incompatible_method_reciever',
['DataView.getFloat64', this]);
}
offset = TO_INTEGER(offset);
if (offset < 0) {
throw MakeRangeError("invalid_data_view_accessor_offset");
if (%_ArgumentsLength() < 1) {
throw MakeTypeError('invalid_argument');
}
return %DataViewGetFloat64(this,
ToPositiveDataViewOffset(offset),
@ -420,9 +461,8 @@ function DataViewSetFloat64(offset, value, little_endian) {
throw MakeTypeError('incompatible_method_reciever',
['DataView.setFloat64', this]);
}
offset = TO_INTEGER(offset);
if (offset < 0) {
throw MakeRangeError("invalid_data_view_accessor_offset");
if (%_ArgumentsLength() < 1) {
throw MakeTypeError('invalid_argument');
}
%DataViewSetFloat64(this,
ToPositiveDataViewOffset(offset),

24
test/mjsunit/harmony/dataview-accessors.js
View File

@ -62,7 +62,10 @@ function getElementSize(func) {
function checkGet(func, index, expected, littleEndian) {
function doGet() {
return view["get" + func](index, littleEndian);
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());
@ -72,7 +75,10 @@ function checkGet(func, index, expected, littleEndian) {
function checkSet(func, index, value, littleEndian) {
function doSet() {
view["set" + func](index, value, littleEndian);
if (littleEndian != undefined)
view["set" + func](index, value, littleEndian);
else
view["set" + func](index, value);
}
if (index >= 0 &&
index + getElementSize(func) - 1 < view.byteLength) {
@ -105,39 +111,46 @@ 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, "Uint8", 0, 0);
test(isTestingGet, "Uint8", undefined, 0);
test(isTestingGet, "Uint8", 8, 128);
test(isTestingGet, "Uint8", 15, 255);
// 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);
// 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);
// 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);
// 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);
// 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);
@ -145,6 +158,7 @@ function runIntegerTestCases(isTestingGet, array, start, length) {
// 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);
@ -152,6 +166,7 @@ function runIntegerTestCases(isTestingGet, array, start, length) {
// 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);
@ -159,6 +174,7 @@ function runIntegerTestCases(isTestingGet, array, start, length) {
// 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);
@ -169,6 +185,7 @@ 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);
@ -179,6 +196,7 @@ function testFloat(isTestingGet, func, array, start, expected) {
// 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);
@ -286,8 +304,10 @@ 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);
assertThrows(function() { f.call(a); }, TypeError);
}
CheckAccessor("getUint8");
CheckAccessor("setUint8");