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GeezerVison is showing github.com — lib: avoid memory allocation on nodeprecation flag · nodejs/node@0a0b416

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lib/internal
- modules/esm
  - resolve.js
- process
  - warning.js

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`‎lib/internal/modules/esm/resolve.js‎`

Copy file name to clipboardExpand all lines: lib/internal/modules/esm/resolve.js

+9Lines changed: 9 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -75,6 +75,9 @@ const emittedPackageWarnings = new SafeSet();`
`75`	`75`	`* @param {string} base - The URL of the module that imported the package.`
`76`	`76`	`*/`
`77`	`77`	`function emitTrailingSlashPatternDeprecation(match, pjsonUrl, base) {`
	`78`	`+ if (process.noDeprecation) {`
	`79`	`+ return;`
	`80`	`+ }`
`78`	`81`	`const pjsonPath = fileURLToPath(pjsonUrl);`
`79`	`82`	`if (emittedPackageWarnings.has(pjsonPath + '\|' + match)) { return; }`
`80`	`83`	`emittedPackageWarnings.add(pjsonPath + '\|' + match);`
`@@ -101,6 +104,9 @@ const doubleSlashRegEx = /[/\\][/\\]/;`
`101`	`104`	`* @param {boolean} isTarget - Whether the target is a module.`
`102`	`105`	`*/`
`103`	`106`	`function emitInvalidSegmentDeprecation(target, request, match, pjsonUrl, internal, base, isTarget) {`
	`107`	`+ if (process.noDeprecation) {`
	`108`	`+ return;`
	`109`	`+ }`
`104`	`110`	`const pjsonPath = fileURLToPath(pjsonUrl);`
`105`	`111`	`const double = RegExpPrototypeExec(doubleSlashRegEx, isTarget ? target : request) !== null;`
`106`	`112`	`process.emitWarning(`
`@@ -123,6 +129,9 @@ function emitInvalidSegmentDeprecation(target, request, match, pjsonUrl, interna`
`123`	`129`	`* @param {string} [main] - The "main" field from the package.json file.`
`124`	`130`	`*/`
`125`	`131`	`function emitLegacyIndexDeprecation(url, packageJSONUrl, base, main) {`
	`132`	`+ if (process.noDeprecation) {`
	`133`	`+ return;`
	`134`	`+ }`
`126`	`135`	`const format = defaultGetFormatWithoutErrors(url);`
`127`	`136`	`if (format !== 'module') { return; }`
`128`	`137`	`const path = fileURLToPath(url);`

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`‎lib/internal/process/warning.js‎`

Copy file name to clipboardExpand all lines: lib/internal/process/warning.js

+5Lines changed: 5 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -127,6 +127,11 @@ function onWarning(warning) {`
`127`	`127`	`// process.emitWarning(str[, type[, code]][, ctor])`
`128`	`128`	`// process.emitWarning(str[, options])`
`129`	`129`	`function emitWarning(warning, type, code, ctor) {`
	`130`	`+ // Fast path to avoid memory allocation,`
	`131`	`+ // this doesn't eliminate the other if a few lines below`
	`132`	`+ if (process.noDeprecation && type === 'DeprecationWarning') {`
	`133`	`+ return;`
	`134`	`+ }`
`130`	`135`	`let detail;`
`131`	`136`	`if (type !== null && typeof type === 'object' && !ArrayIsArray(type)) {`
`132`	`137`	`ctor = type.ctor;`

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