Bug 1529680 - [release 127] [Breakpoints] Improve column breakpoint performance (#8000). r=dwalsh

devtools/client/debugger/new/packages/devtools-source-map/src/index.js

@@ -25,6 +25,10 @@ const _getAllGeneratedLocations = dispatcher.task("getAllGeneratedLocations", {
   queue: true
 });
 
+const _getOriginalLocation = dispatcher.task("getOriginalLocation", {
+  queue: true
+});
+
 export const setAssetRootURL = async (assetRoot: string): Promise<void> =>
   dispatcher.invoke("setAssetRootURL", assetRoot);
 
@@ -71,8 +75,7 @@ export const getAllGeneratedLocations = async (
 export const getOriginalLocation = async (
   location: SourceLocation,
   options: locationOptions = {}
-): Promise<SourceLocation> =>
-  dispatcher.invoke("getOriginalLocation", location, options);
+): Promise<SourceLocation> => _getOriginalLocation(location, options);
 
 export const getFileGeneratedRange = async (
   originalSource: Source

devtools/client/shared/source-map/index.js

@@ -140,6 +140,10 @@ const _getAllGeneratedLocations = dispatcher.task("getAllGeneratedLocations", {
   queue: true
 });
 
+const _getOriginalLocation = dispatcher.task("getOriginalLocation", {
+  queue: true
+});
+
 const setAssetRootURL = exports.setAssetRootURL = async assetRoot => dispatcher.invoke("setAssetRootURL", assetRoot);
 
 const getOriginalURLs = exports.getOriginalURLs = async generatedSource => dispatcher.invoke("getOriginalURLs", generatedSource);
@@ -153,7 +157,7 @@ const getGeneratedLocation = exports.getGeneratedLocation = async (location, ori
 
 const getAllGeneratedLocations = exports.getAllGeneratedLocations = async (location, originalSource) => _getAllGeneratedLocations(location, originalSource);
 
-const getOriginalLocation = exports.getOriginalLocation = async (location, options = {}) => dispatcher.invoke("getOriginalLocation", location, options);
+const getOriginalLocation = exports.getOriginalLocation = async (location, options = {}) => _getOriginalLocation(location, options);
 
 const getFileGeneratedRange = exports.getFileGeneratedRange = async originalSource => dispatcher.invoke("getFileGeneratedRange", originalSource);