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@@ -749,7 +749,7 @@ changes:
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description: This API is no longer experimental.
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-->
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Enable [Source Map v3][Source Map] support for stack traces.
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Enable [Source Map][] support for stack traces.
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When using a transpiler, such as TypeScript, stack traces thrown by an
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application reference the transpiled code, not the original source position.
@@ -3887,7 +3887,7 @@ node --stack-trace-limit=12 -p -e "Error.stackTraceLimit" # prints 12
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[REPL]: repl.md
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[ScriptCoverage]: https://chromedevtools.github.io/devtools-protocol/tot/Profiler#type-ScriptCoverage
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[ShadowRealm]: https://github.com/tc39/proposal-shadowrealm
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[Source Map]: https://sourcemaps.info/spec.html
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[Source Map]: https://tc39.es/ecma426/
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[TypeScript type-stripping]: typescript.md#type-stripping
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[V8 Inspector integration for Node.js]: debugger.md#v8-inspector-integration-for-nodejs
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[V8 JavaScript code coverage]: https://v8project.blogspot.com/2017/12/javascript-code-coverage.html
@@ -1568,7 +1568,7 @@ Running `node --import 'data:text/javascript,import { register } from "node:modu
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or `node --import ./import-map-sync-hooks.js main.js`
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should print `some module!`.
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## Source map v3 support
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## Source Map Support
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<!-- YAML
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added:
@@ -1578,13 +1578,17 @@ added:
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> Stability: 1 - Experimental
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Helpers for interacting with the source map cache. This cache is
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populated when source map parsing is enabled and
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Node.js supports TC39 ECMA-426 [Source Map][] format (it was called Source map
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revision 3 format).
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The APIs in this section are helpers for interacting with the source map
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cache. This cache is populated when source map parsing is enabled and
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[source map include directives][] are found in a modules' footer.
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To enable source map parsing, Node.js must be run with the flag
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[`--enable-source-maps`][], or with code coverage enabled by setting
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[`NODE_V8_COVERAGE=dir`][].
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[`NODE_V8_COVERAGE=dir`][], or be enabled programmatically via
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[`module.setSourceMapsSupport()`][].
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```mjs
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// module.mjs
@@ -1682,7 +1686,7 @@ changes:
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Creates a new `sourceMap` instance.
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`payload` is an object with keys matching the [Source map v3 format][]:
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`payload` is an object with keys matching the [Source map format][]:
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* `file`: {string}
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* `version`: {number}
@@ -1773,8 +1777,8 @@ returned object contains the following keys:
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[Customization hooks]: #customization-hooks
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[ES Modules]: esm.md
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[Permission Model]: permissions.md#permission-model
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[Source Map]: https://sourcemaps.info/spec.html
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[Source map v3 format]: https://sourcemaps.info/spec.html#h.mofvlxcwqzej
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[Source Map]: https://tc39.es/ecma426/
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[Source map format]: https://tc39.es/ecma426/#sec-source-map-format
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[V8 JavaScript code coverage]: https://v8project.blogspot.com/2017/12/javascript-code-coverage.html
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[V8 code cache]: https://v8.dev/blog/code-caching-for-devs
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[`"exports"`]: packages.md#exports
@@ -1790,6 +1794,7 @@ returned object contains the following keys:
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[`module.enableCompileCache()`]: #moduleenablecompilecachecachedir
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[`module.flushCompileCache()`]: #moduleflushcompilecache
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[`module.getCompileCacheDir()`]: #modulegetcompilecachedir
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[`module.setSourceMapsSupport()`]: #modulesetsourcemapssupportenabled-options
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[`module`]: #the-module-object
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[`os.tmpdir()`]: os.md#ostmpdir
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[`registerHooks`]: #moduleregisterhooksoptions
@@ -1802,7 +1807,7 @@ returned object contains the following keys:
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[module wrapper]: modules.md#the-module-wrapper
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[realm]: https://tc39.es/ecma262/#realm
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[resolve hook]: #resolvespecifier-context-nextresolve
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[source map include directives]: https://sourcemaps.info/spec.html#h.lmz475t4mvbx
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[source map include directives]: https://tc39.es/ecma426/#sec-linking-generated-code
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[the documentation of `Worker`]: worker_threads.md#new-workerfilename-options
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[transferable objects]: worker_threads.md#portpostmessagevalue-transferlist
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[transform TypeScript features]: typescript.md#typescript-features
@@ -1267,7 +1267,7 @@ This section was moved to
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## Source map v3 support
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This section was moved to
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[Modules: `module` core module](module.md#source-map-v3-support).
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[Modules: `module` core module](module.md#source-map-support).
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<!-- Anchors to make sure old links find a target -->
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@@ -4069,7 +4069,7 @@ added:
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* `val` {boolean}
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This function enables or disables the [Source Map v3][Source Map] support for
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This function enables or disables the [Source Map][] support for
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stack traces.
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It provides same features as launching Node.js process with commandline options
@@ -4120,7 +4120,7 @@ added:
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* {boolean}
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The `process.sourceMapsEnabled` property returns whether the
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[Source Map v3][Source Map] support for stack traces is enabled.
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[Source Map][] support for stack traces is enabled.
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## `process.stderr`
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@@ -4580,7 +4580,7 @@ cases:
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[Permission Model]: permissions.md#permission-model
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[Readable]: stream.md#readable-streams
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[Signal Events]: #signal-events
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[Source Map]: https://sourcemaps.info/spec.html
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[Source Map]: https://tc39.es/ecma426/
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[Stream compatibility]: stream.md#compatibility-with-older-nodejs-versions
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[TTY]: tty.md#tty
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[Writable]: stream.md#writable-streams
@@ -10,7 +10,7 @@ const {
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StringPrototypeSplit,
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} = primordials;
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// See https://sourcemaps.info/spec.html for SourceMap V3 specification.
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// See https://tc39.es/ecma426/ for SourceMap V3 specification.
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const { Buffer } = require('buffer');
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let debug = require('internal/util/debuglog').debuglog('source_map', (fn) => {
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debug = fn;
@@ -273,7 +273,7 @@ function nextdir() {
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// Does not attempt to apply path resolution logic to absolute URLs
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// with schemes.
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// Refs: https://github.com/webpack/webpack/issues/9601
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// Refs: https://sourcemaps.info/spec.html#h.75yo6yoyk7x5
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// Refs: https://tc39.es/ecma426/#sec-sources
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{
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const output = spawnSync(process.execPath, [
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'--enable-source-maps',
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