report: warn on process.report object access

Reduce the number of emitExperimentalWarning() call sites by
making process.report emit a warning on access instead of each
individual report function.

PR-URL: https://github.com/nodejs/node/pull/26414
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Wyatt Preul <wpreul@gmail.com>

lib/internal/bootstrap/pre_execution.js

@@ -41,7 +41,15 @@ function initializeReport() {
     return;
   }
   const { report } = require('internal/process/report');
-  process.report = report;
+  const { emitExperimentalWarning } = require('internal/util');
+  Object.defineProperty(process, 'report', {
+    enumerable: false,
+    configurable: true,
+    get() {
+      emitExperimentalWarning('report');
+      return report;
+    }
+  });
 }
 
 function setupSignalHandlers() {

lib/internal/process/report.js

@@ -1,8 +1,5 @@
 'use strict';
-const {
-  convertToValidSignal,
-  emitExperimentalWarning
-} = require('internal/util');
+const { convertToValidSignal } = require('internal/util');
 const {
   ERR_INVALID_ARG_TYPE,
   ERR_SYNTHETIC
@@ -11,8 +8,6 @@ const { validateString } = require('internal/validators');
 const nr = internalBinding('report');
 const report = {
   triggerReport(file, err) {
-    emitExperimentalWarning('report');
-
     if (typeof file === 'object' && file !== null) {
       err = file;
       file = undefined;
@@ -27,8 +22,6 @@ const report = {
     return nr.triggerReport('JavaScript API', 'API', file, err.stack);
   },
   getReport(err) {
-    emitExperimentalWarning('report');
-
     if (err === undefined)
       err = new ERR_SYNTHETIC();
     else if (err === null || typeof err !== 'object')
@@ -37,29 +30,23 @@ const report = {
     return nr.getReport(err.stack);
   },
   get directory() {
-    emitExperimentalWarning('report');
     return nr.getDirectory();
   },
   set directory(dir) {
-    emitExperimentalWarning('report');
     validateString(dir, 'directory');
     return nr.setDirectory(dir);
   },
   get filename() {
-    emitExperimentalWarning('report');
     return nr.getFilename();
   },
   set filename(name) {
-    emitExperimentalWarning('report');
     validateString(name, 'filename');
     return nr.setFilename(name);
   },
   get signal() {
-    emitExperimentalWarning('report');
     return nr.getSignal();
   },
   set signal(sig) {
-    emitExperimentalWarning('report');
     validateString(sig, 'signal');
     convertToValidSignal(sig); // Validate that the signal is recognized.
     removeSignalHandler();
@@ -67,24 +54,18 @@ const report = {
     return nr.setSignal(sig);
   },
   get reportOnFatalError() {
-    emitExperimentalWarning('report');
     return nr.shouldReportOnFatalError();
   },
   set reportOnFatalError(trigger) {
-    emitExperimentalWarning('report');
-
     if (typeof trigger !== 'boolean')
       throw new ERR_INVALID_ARG_TYPE('trigger', 'boolean', trigger);
 
     return nr.setReportOnFatalError(trigger);
   },
   get reportOnSignal() {
-    emitExperimentalWarning('report');
     return nr.shouldReportOnSignal();
   },
   set reportOnSignal(trigger) {
-    emitExperimentalWarning('report');
-
     if (typeof trigger !== 'boolean')
       throw new ERR_INVALID_ARG_TYPE('trigger', 'boolean', trigger);
 
@@ -93,12 +74,9 @@ const report = {
     addSignalHandler();
   },
   get reportOnUncaughtException() {
-    emitExperimentalWarning('report');
     return nr.shouldReportOnUncaughtException();
   },
   set reportOnUncaughtException(trigger) {
-    emitExperimentalWarning('report');
-
     if (typeof trigger !== 'boolean')
       throw new ERR_INVALID_ARG_TYPE('trigger', 'boolean', trigger);