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Bug 1201214 - Deal with AppendElement failing if it's called in a fallible way r=jwatt

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Fortunately bug 1631371 has marked the methods and SVGPathData::GetSegmentLengths is dead code

Differential Revision: https://phabricator.services.mozilla.com/D84092
This commit is contained in:
longsonr 2020-07-21 14:17:44 +00:00
parent 5d84e2b8f0
commit 58d8d9dc4a
3 changed files with 4 additions and 34 deletions
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14
dom/svg/SVGMotionSMILAnimationFunction.cpp
View File

@ -161,10 +161,8 @@ void SVGMotionSMILAnimationFunction::RebuildPathAndVerticesFromBasicAttrs(
if (HasAttr(nsGkAtoms::from)) {
const nsAString& fromStr = GetAttr(nsGkAtoms::from)->GetStringValue();
success = pathGenerator.MoveToAbsolute(fromStr);
// XXX(Bug 1631371) Check if this should use a fallible operation as it
// pretended earlier.
if (!mPathVertices.AppendElement(0.0, fallible)) {
mozalloc_handle_oom(0);
success = false;
}
} else {
// Create dummy 'from' value at 0,0, if we're doing by-animation.
@ -172,14 +170,12 @@ void SVGMotionSMILAnimationFunction::RebuildPathAndVerticesFromBasicAttrs(
// because the SMILAnimationFunction logic for to-animation doesn't
// expect a dummy value. It only expects one value: the final 'to' value.)
pathGenerator.MoveToOrigin();
success = true;
if (!HasAttr(nsGkAtoms::to)) {
// XXX(Bug 1631371) Check if this should use a fallible operation as it
// pretended earlier.
if (!mPathVertices.AppendElement(0.0, fallible)) {
mozalloc_handle_oom(0);
success = false;
}
}
success = true;
}
// Apply 'to' or 'by' value
@ -195,10 +191,8 @@ void SVGMotionSMILAnimationFunction::RebuildPathAndVerticesFromBasicAttrs(
success = pathGenerator.LineToRelative(byStr, dist);
}
if (success) {
// XXX(Bug 1631371) Check if this should use a fallible operation as it
// pretended earlier.
if (!mPathVertices.AppendElement(dist, fallible)) {
mozalloc_handle_oom(0);
success = false;
}
}
}

19
dom/svg/SVGPathData.cpp
View File

@ -135,25 +135,6 @@ uint32_t SVGPathData::CountItems() const {
}
#endif
bool SVGPathData::GetSegmentLengths(nsTArray<double>* aLengths) const {
aLengths->Clear();
SVGPathTraversalState state;
uint32_t i = 0;
while (i < mData.Length()) {
state.length = 0.0;
SVGPathSegUtils::TraversePathSegment(&mData[i], state);
// XXX(Bug 1631371) Check if this should use a fallible operation as it
// pretended earlier.
aLengths->AppendElement(state.length);
i += 1 + SVGPathSegUtils::ArgCountForType(mData[i]);
}
MOZ_ASSERT(i == mData.Length(), "Very, very bad - mData corrupt");
return true;
}
bool SVGPathData::GetDistancesFromOriginToEndsOfVisibleSegments(
FallibleTArray<double>* aOutput) const {
SVGPathTraversalState state;

5
dom/svg/SVGPathData.h
View File

@ -145,11 +145,6 @@ class SVGPathData {
void GetMarkerPositioningData(nsTArray<SVGMark>* aMarks) const;
/**
* Returns true, except on OOM, in which case returns false.
*/
bool GetSegmentLengths(nsTArray<double>* aLengths) const;
/**
* Returns true, except on OOM, in which case returns false.
*/