From 79a8c852e84506a844057b0a2fcf9448fb8123e1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=BF=A0=20/=20green?= <green@sapphi.red>
Date: Fri, 13 May 2022 17:37:38 +0900
Subject: [PATCH] chore(plugin-vue): replace source-map with gen/trace-mapping
 (#8155)

---
 packages/plugin-vue/package.json |  2 ++
 packages/plugin-vue/src/main.ts  | 28 +++++++++++++++++++++-------
 pnpm-lock.yaml                   | 13 +++++++++++++
 3 files changed, 36 insertions(+), 7 deletions(-)

diff --git a/packages/plugin-vue/package.json b/packages/plugin-vue/package.json
index eef528d8fc46f0..e6c712b6545663 100644
--- a/packages/plugin-vue/package.json
+++ b/packages/plugin-vue/package.json
@@ -39,6 +39,8 @@
     "vue": "^3.2.25"
   },
   "devDependencies": {
+    "@jridgewell/gen-mapping": "^0.3.1",
+    "@jridgewell/trace-mapping": "^0.3.10",
     "debug": "^4.3.4",
     "rollup": "^2.72.1",
     "slash": "^4.0.0",
diff --git a/packages/plugin-vue/src/main.ts b/packages/plugin-vue/src/main.ts
index 6df6901a2bab40..8215ff7ba346a7 100644
--- a/packages/plugin-vue/src/main.ts
+++ b/packages/plugin-vue/src/main.ts
@@ -3,7 +3,10 @@ import type { SFCBlock, SFCDescriptor } from 'vue/compiler-sfc'
 import type { PluginContext, SourceMap, TransformPluginContext } from 'rollup'
 import { normalizePath } from '@rollup/pluginutils'
 import type { RawSourceMap } from 'source-map'
-import { SourceMapConsumer, SourceMapGenerator } from 'source-map'
+import type { EncodedSourceMap as TraceEncodedSourceMap } from '@jridgewell/trace-mapping'
+import { TraceMap, eachMapping } from '@jridgewell/trace-mapping'
+import type { EncodedSourceMap as GenEncodedSourceMap } from '@jridgewell/gen-mapping'
+import { addMapping, fromMap, toEncodedMap } from '@jridgewell/gen-mapping'
 import { transformWithEsbuild } from 'vite'
 import {
   createDescriptor,
@@ -158,13 +161,19 @@ export async function transformMain(
   // of templateMap, we need to concatenate the two source maps.
   let resolvedMap = options.sourceMap ? map : undefined
   if (resolvedMap && templateMap) {
-    const generator = SourceMapGenerator.fromSourceMap(
-      new SourceMapConsumer(map)
+    const gen = fromMap(
+      // version property of result.map is declared as string
+      // but actually it is `3`
+      map as Omit<RawSourceMap, 'version'> as TraceEncodedSourceMap
+    )
+    const tracer = new TraceMap(
+      // same above
+      templateMap as Omit<RawSourceMap, 'version'> as TraceEncodedSourceMap
     )
     const offset = (scriptCode.match(/\r?\n/g)?.length ?? 0) + 1
-    const templateMapConsumer = new SourceMapConsumer(templateMap)
-    templateMapConsumer.eachMapping((m) => {
-      generator.addMapping({
+    eachMapping(tracer, (m) => {
+      if (m.source == null) return
+      addMapping(gen, {
         source: m.source,
         original: { line: m.originalLine, column: m.originalColumn },
         generated: {
@@ -173,7 +182,12 @@ export async function transformMain(
         }
       })
     })
-    resolvedMap = (generator as any).toJSON() as RawSourceMap
+
+    // same above
+    resolvedMap = toEncodedMap(gen) as Omit<
+      GenEncodedSourceMap,
+      'version'
+    > as RawSourceMap
     // if this is a template only update, we will be reusing a cached version
     // of the main module compile result, which has outdated sourcesContent.
     resolvedMap.sourcesContent = templateMap.sourcesContent
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 00d6847a132bf4..4c9e2f58cd9789 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -172,6 +172,8 @@ importers:
 
   packages/plugin-vue:
     specifiers:
+      '@jridgewell/gen-mapping': ^0.3.1
+      '@jridgewell/trace-mapping': ^0.3.10
       '@rollup/pluginutils': ^4.2.1
       debug: ^4.3.4
       rollup: ^2.72.1
@@ -182,6 +184,8 @@ importers:
     dependencies:
       '@rollup/pluginutils': 4.2.1
     devDependencies:
+      '@jridgewell/gen-mapping': 0.3.1
+      '@jridgewell/trace-mapping': 0.3.11
       debug: 4.3.4
       rollup: 2.72.1
       slash: 4.0.0
@@ -1641,6 +1645,15 @@ packages:
       '@jridgewell/set-array': 1.1.1
       '@jridgewell/sourcemap-codec': 1.4.13
 
+  /@jridgewell/gen-mapping/0.3.1:
+    resolution: {integrity: sha512-GcHwniMlA2z+WFPWuY8lp3fsza0I8xPFMWL5+n8LYyP6PSvPrXf4+n8stDHZY2DM0zy9sVkRDy1jDI4XGzYVqg==}
+    engines: {node: '>=6.0.0'}
+    dependencies:
+      '@jridgewell/set-array': 1.1.1
+      '@jridgewell/sourcemap-codec': 1.4.13
+      '@jridgewell/trace-mapping': 0.3.11
+    dev: true
+
   /@jridgewell/resolve-uri/3.0.7:
     resolution: {integrity: sha512-8cXDaBBHOr2pQ7j77Y6Vp5VDT2sIqWyWQ56TjEq4ih/a4iST3dItRe8Q9fp0rrIl9DoKhWQtUQz/YpOxLkXbNA==}
     engines: {node: '>=6.0.0'}