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Fix issue when areas with 0 tokens would be used for delta encoding

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Alexandru Dima
2019-11-18 09:41:10 +01:00
parent 98e776cba0
commit 22ff01e6ff
2 changed files with 44 additions and 1 deletions
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8
src/vs/workbench/api/common/extHostLanguageFeatures.ts
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@@ -746,6 +746,10 @@ export class SemanticColoringAdapter {
for (let i = 0, len = oldAreas.length; i < len; i++) {
const oldAreaData = oldAreas[i];
const oldAreaTokenCount = (oldAreaData.length / 5) | 0;
if (oldAreaTokenCount === 0) {
// skip old empty areas
continue;
}
if (newTokenEndIndex - newTokenStartIndex < oldAreaTokenCount) {
// there are too many old tokens, this cannot work
break;
@@ -772,6 +776,10 @@ export class SemanticColoringAdapter {
for (let i = oldAreas.length - 1; i >= 0; i--) {
const oldAreaData = oldAreas[i];
const oldAreaTokenCount = (oldAreaData.length / 5) | 0;
if (oldAreaTokenCount === 0) {
// skip old empty areas
continue;
}
if (newTokenEndIndex - newTokenStartIndex < oldAreaTokenCount) {
// there are too many old tokens, this cannot work
break;