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Change the seenStyles object, in PartialEvaluator.getTextContent, to a Set

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Given that what we actually want is only to keep track of the loadedFont-names, rather than storing any actual data, using an object isn't really necessary here. Furthermore, in the current code, we're also using `in` when checking if the data exists, which is generally less efficient than just checking for the value directly.
This commit is contained in:
Jonas Jenwald 2021-04-01 18:08:20 +02:00
parent 5cf116a958
commit 68d3a333ac
1 changed files with 8 additions and 6 deletions
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14
src/core/evaluator.js
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@ -1974,7 +1974,7 @@ class PartialEvaluator {
normalizeWhitespace = false,
combineTextItems = false,
sink,
seenStyles = Object.create(null),
seenStyles = new Set(),
}) {
// Ensure that `resources`/`stateManager` is correctly initialized,
// even if the provided parameter is e.g. `null`.
@ -2024,17 +2024,19 @@ class PartialEvaluator {
if (textContentItem.initialized) {
return textContentItem;
}
var font = textState.font;
if (!(font.loadedName in seenStyles)) {
seenStyles[font.loadedName] = true;
textContent.styles[font.loadedName] = {
const font = textState.font,
loadedName = font.loadedName;
if (!seenStyles.has(loadedName)) {
seenStyles.add(loadedName);
textContent.styles[loadedName] = {
fontFamily: font.fallbackName,
ascent: font.ascent,
descent: font.descent,
vertical: font.vertical,
};
}
textContentItem.fontName = font.loadedName;
textContentItem.fontName = loadedName;
// 9.4.4 Text Space Details
var tsm = [