From 2b5f4eb9fe7b4ce862b9cd6a31671baf3e86a093 Mon Sep 17 00:00:00 2001
From: yann300 <yann.levreau@gmail.com>
Date: Mon, 21 Nov 2022 19:36:44 +0100
Subject: [PATCH] adding cache

---
 .../src/lib/offset-line-to-column-converter.ts      | 13 ++++++++++++-
 .../src/source/offsetToLineColumnConverter.ts       | 12 +++++++++++-
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/libs/remix-core-plugin/src/lib/offset-line-to-column-converter.ts b/libs/remix-core-plugin/src/lib/offset-line-to-column-converter.ts
index b6e02bbcdd..0c416b2953 100644
--- a/libs/remix-core-plugin/src/lib/offset-line-to-column-converter.ts
+++ b/libs/remix-core-plugin/src/lib/offset-line-to-column-converter.ts
@@ -13,9 +13,11 @@ const profile = {
 export class OffsetToLineColumnConverter extends Plugin {
   lineBreakPositionsByContent: Record<number, Array<number>>
   sourceMappingDecoder: any
+  offsetConvertion: any
   constructor () {
     super(profile)
     this.lineBreakPositionsByContent = {}
+    this.offsetConvertion = {}
     this.sourceMappingDecoder = sourceMappingDecoder
   }
 
@@ -45,7 +47,15 @@ export class OffsetToLineColumnConverter extends Plugin {
         }
       }
     }
-    return this.sourceMappingDecoder.convertOffsetToLineColumn(rawLocation, this.lineBreakPositionsByContent[file])
+
+    const token = `${rawLocation.start}:${rawLocation.length}:${file}`
+    if (this.offsetConvertion[token]) {
+      return this.offsetConvertion[token]
+    } else {
+      const convertion = this.sourceMappingDecoder.convertOffsetToLineColumn(rawLocation, this.lineBreakPositionsByContent[file])
+      this.offsetConvertion[token] = convertion
+      return convertion
+    }
   }
 
   /**
@@ -64,6 +74,7 @@ export class OffsetToLineColumnConverter extends Plugin {
    */
   clear () {
     this.lineBreakPositionsByContent = {}
+    this.offsetConvertion = {}
   }
 
   /**
diff --git a/libs/remix-debug/src/source/offsetToLineColumnConverter.ts b/libs/remix-debug/src/source/offsetToLineColumnConverter.ts
index 6605b660b9..a1f296c76f 100644
--- a/libs/remix-debug/src/source/offsetToLineColumnConverter.ts
+++ b/libs/remix-debug/src/source/offsetToLineColumnConverter.ts
@@ -4,9 +4,11 @@ import { getLinebreakPositions, convertOffsetToLineColumn } from './sourceMappin
 export class OffsetToColumnConverter {
   lineBreakPositionsByContent
   sourceMappingDecoder
+  offsetConvertion
 
   constructor (compilerEvent) {
     this.lineBreakPositionsByContent = {}
+    this.offsetConvertion = {}
     if (compilerEvent) {
       compilerEvent.register('compilationFinished', (success, data, source, input, version) => {
         this.clear()
@@ -26,10 +28,18 @@ export class OffsetToColumnConverter {
         }
       }
     }
-    return convertOffsetToLineColumn(rawLocation, this.lineBreakPositionsByContent[file])
+    const token = `${rawLocation.start}:${rawLocation.length}:${file}`
+    if (this.offsetConvertion[token]) {
+      return this.offsetConvertion[token]
+    } else {
+      const convertion = convertOffsetToLineColumn(rawLocation, this.lineBreakPositionsByContent[file])
+      this.offsetConvertion[token] = convertion
+      return convertion
+    }
   }
 
   clear () {
     this.lineBreakPositionsByContent = {}
+    this.offsetConvertion = {}
   }
 }