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Issue #2255 - Use Maybe<> in the Performance API.

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This commit is contained in:
Brian Smith 2023-07-12 14:25:06 -05:00 • committed by roytam1
commit 1f5eaee101
2 changed files with 19 additions and 17 deletions
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30
dom/performance/Performance.cpp
View file

@ -413,16 +413,16 @@ DOMHighResTimeStamp Performance::ConvertNameToTimestamp(const nsAString& aName,
DOMHighResTimeStamp
Performance::ResolveEndTimeForMeasure(
const Optional<nsAString>& aEndMark,
const PerformanceMeasureOptions* aOptions,
const Maybe<const PerformanceMeasureOptions&>& aOptions,
ErrorResult& aRv)
{
DOMHighResTimeStamp endTime;
if (aEndMark.WasPassed()) {
endTime = ConvertMarkToTimestampWithString(aEndMark.Value(), aRv);
} else if (aOptions != nullptr && aOptions->mEnd.WasPassed()) {
} else if (aOptions && aOptions->mEnd.WasPassed()) {
endTime = ConvertMarkToTimestamp(ResolveTimestampAttribute::End,
aOptions->mEnd.Value(), aRv);
} else if (aOptions != nullptr && aOptions->mStart.WasPassed() &&
} else if (aOptions && aOptions->mStart.WasPassed() &&
aOptions->mDuration.WasPassed()) {
const DOMHighResTimeStamp start = ConvertMarkToTimestamp(
ResolveTimestampAttribute::Start, aOptions->mStart.Value(), aRv);
@ -447,16 +447,16 @@ Performance::ResolveEndTimeForMeasure(
DOMHighResTimeStamp
Performance::ResolveStartTimeForMeasure(
const nsAString* aStartMark,
const PerformanceMeasureOptions* aOptions,
const Maybe<const nsAString&>& aStartMark,
const Maybe<const PerformanceMeasureOptions&>& aOptions,
ErrorResult& aRv)
{
DOMHighResTimeStamp startTime;
if (aOptions != nullptr && aOptions->mStart.WasPassed()) {
if (aOptions && aOptions->mStart.WasPassed()) {
startTime = ConvertMarkToTimestamp(ResolveTimestampAttribute::Start,
aOptions->mStart.Value(),
aRv);
} else if (aOptions != nullptr && aOptions->mDuration.WasPassed() &&
} else if (aOptions && aOptions->mDuration.WasPassed() &&
aOptions->mEnd.WasPassed()) {
const DOMHighResTimeStamp duration =
ConvertMarkToTimestampWithDOMHighResTimeStamp(
@ -474,7 +474,7 @@ Performance::ResolveStartTimeForMeasure(
}
startTime = end - duration;
} else if (aStartMark != nullptr) {
} else if (aStartMark) {
startTime = ConvertMarkToTimestampWithString(*aStartMark, aRv);
} else {
startTime = 0;
@ -496,13 +496,14 @@ Performance::Measure(JSContext* aCx,
return nullptr;
}
const PerformanceMeasureOptions* options = nullptr;
// Maybe is more readable than using the union type directly.
Maybe<const PerformanceMeasureOptions&> options;
if (aStartOrMeasureOptions.IsPerformanceMeasureOptions()) {
options = &aStartOrMeasureOptions.GetAsPerformanceMeasureOptions();
options.emplace(aStartOrMeasureOptions.GetAsPerformanceMeasureOptions());
}
const bool isOptionsNotEmpty =
(options != nullptr) &&
options.isSome() &&
(!options->mDetail.isUndefined() || options->mStart.WasPassed() ||
options->mEnd.WasPassed() || options->mDuration.WasPassed());
if (isOptionsNotEmpty) {
@ -529,9 +530,10 @@ Performance::Measure(JSContext* aCx,
return nullptr;
}
const nsAString* startMark = nullptr;
// Convert to Maybe for consistency with options.
Maybe<const nsAString&> startMark;
if (aStartOrMeasureOptions.IsString()) {
startMark = &aStartOrMeasureOptions.GetAsString();
startMark.emplace(aStartOrMeasureOptions.GetAsString());
}
const DOMHighResTimeStamp startTime =
ResolveStartTimeForMeasure(startMark, options, aRv);
@ -540,7 +542,7 @@ Performance::Measure(JSContext* aCx,
}
JS::Rooted<JS::Value> detail(aCx);
if (options != nullptr && !options->mDetail.isNullOrUndefined()) {
if (options && !options->mDetail.isNullOrUndefined()) {
StructuredSerializeOptions serializeOptions;
JS::Rooted<JS::Value> valueToClone(aCx, options->mDetail);
nsContentUtils::StructuredClone(aCx, GetParentObject(), valueToClone,

6
dom/performance/Performance.h
View file

@ -195,11 +195,11 @@ private:
DOMHighResTimeStamp ResolveEndTimeForMeasure(
const Optional<nsAString>& aEndMark,
const PerformanceMeasureOptions* aOptions,
const Maybe<const PerformanceMeasureOptions&>& aOptions,
ErrorResult& aRv);
DOMHighResTimeStamp ResolveStartTimeForMeasure(
const nsAString* aStartMark,
const PerformanceMeasureOptions* aOptions,
const Maybe<const nsAString&>& aStartMark,
const Maybe<const PerformanceMeasureOptions&>& aOptions,
ErrorResult& aRv);
};