Fix a crash when running the CLI tool on code with a bigint

marijnh · marijnh · commit 71d942e45ae3 · 2025-06-07T22:52:01.000+02:00
FIX: The `acorn` CLI tool no longer crashes when emitting a tree that contains a bigint. Closes #1372
diff --git a/acorn/src/bin/acorn.js b/acorn/src/bin/acorn.js
@@ -56,7 +56,7 @@ function run(codeList) {
     console.error(fileMode ? e.message.replace(/\(\d+:\d+\)$/, m => m.slice(0, 1) + inputFilePaths[fileIdx] + " " + m.slice(1)) : e.message)
     process.exit(1)
   }
-  if (!silent) console.log(JSON.stringify(result, null, compact ? null : 2))
+  if (!silent) console.log(JSON.stringify(result, (_, value) => typeof value == "bigint" ? null : value, compact ? null : 2))
 }
 
 if (fileMode = inputFilePaths.length && (forceFileName || !inputFilePaths.includes("-") || inputFilePaths.length !== 1)) {

Original file line number	Diff line number	Diff line change
`@@ -56,7 +56,7 @@ function run(codeList) {`
`56`	`56`	`console.error(fileMode ? e.message.replace(/\(\d+:\d+\)$/, m => m.slice(0, 1) + inputFilePaths[fileIdx] + " " + m.slice(1)) : e.message)`
`57`	`57`	`process.exit(1)`
`58`	`58`	`}`
`59`		`- if (!silent) console.log(JSON.stringify(result, null, compact ? null : 2))`
	`59`	`+ if (!silent) console.log(JSON.stringify(result, (_, value) => typeof value == "bigint" ? null : value, compact ? null : 2))`
`60`	`60`	`}`
`61`	`61`
`62`	`62`	`if (fileMode = inputFilePaths.length && (forceFileName \|\| !inputFilePaths.includes("-") \|\| inputFilePaths.length !== 1)) {`