perf: flatten sourceMap to improve memory usage #4964
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char0n
reviewed
Jun 27, 2025
| } | ||
|
|
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| /* eslint-disable no-param-reassign */ | ||
| private maybeAddSourceMap(node: unknown, element: Element): void { |
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node: unknown - type with extends Node from apidom-ast package
char0n
reviewed
Jun 27, 2025
| */ | ||
| export const hasElementSourceMap = <T extends Element>(element: T): boolean => { | ||
| return isSourceMapElement(element.meta.get('sourceMap')); | ||
| return ( |
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Probably using a Number.isInteger is warranted here.
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And let's make this function safe - meaning it never throws. We can use isElement and only continue after truthy assertion.
char0n
reviewed
Jun 27, 2025
| const sourceMapElement = element.getMetaProperty('sourceMap'); | ||
| const charStart = toValue(sourceMapElement.positionStart.get(2)); | ||
| const charEnd = toValue(sourceMapElement.positionEnd.get(2)); | ||
| const charStart = element.startIndex; |
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Align naming with new sourcemap fields.
char0n
reviewed
Jun 27, 2025
| } | ||
| } | ||
| if (hasElementSourceMap(from)) { | ||
| to.startPositionRow = from.startPositionRow; |
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assignSourceMap(to, from)
->
to.startPositionRow = from.startPositionRow
...
Possibly making it safe later. No parameter destricturing as it might be used in syntactic analysis or refracting, so we want to keep it fast.
char0n
reviewed
Jun 27, 2025
| return new JsonDocument({ | ||
| children: node.children, | ||
| position, | ||
| startPositionRow: node.startPositionRow, |
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return new JsonDocument(
assignSourceMap({
children: node.children,
isMissing: node.isMissing,
}, node)
);
char0n
approved these changes
Jun 27, 2025
lukaszzazulak
approved these changes
Jul 4, 2025
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