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Remove unnecessary internal tags, handle bad input

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This commit is contained in:
Ben Lichtman 2019-12-18 10:44:40 -08:00
parent 42dc4155ce
commit 9f1e389441
1 changed files with 6 additions and 1 deletions
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7
src/server/scriptInfo.ts
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@ -622,6 +622,7 @@ namespace ts.server {
}
positionToLineOffset(position: number): protocol.Location {
failIfInvalidPosition(position);
const location = this.textStorage.positionToLineOffset(position);
failIfInvalidLocation(location);
return location;
@ -645,7 +646,11 @@ namespace ts.server {
}
}
/*@internal*/
function failIfInvalidPosition(position: number) {
Debug.assert(typeof position === "number", `Expected position ${position} to be a number.`);
Debug.assert(position >= 0, `Expected position to be non-negative.`);
}
function failIfInvalidLocation(location: protocol.Location) {
Debug.assert(typeof location.line === "number", `Expected line ${location.line} to be a number.`);
Debug.assert(typeof location.offset === "number", `Expected offset ${location.offset} to be a number.`);