feat: breakpoints to list breakpoints

Author: Jan Krems

lib/internal/inspect-repl.js

@@ -255,6 +255,18 @@ function createRepl(inspector) {
     }
   }
 
+  function listBreakpoints() {
+    function formatLocation(location) {
+      if (!location) return '<unknown location>';
+      const script = knownScripts[location.scriptId];
+      const scriptUrl = script ? script.url : location.scriptUrl;
+      return `${getRelativePath(scriptUrl)}:${location.lineNumber + 1}`;
+    }
+    knownBreakpoints.forEach((bp, idx) => {
+      print(`#${idx} ${formatLocation(bp.location)}`);
+    });
+  }
+
   function setBreakpoint(script, line, condition, silent) {
     function registerBreakpoint({ breakpointId, actualLocation }) {
       handleBreakpointResolved({ breakpointId, location: actualLocation });
@@ -398,6 +410,10 @@ function createRepl(inspector) {
         return currentBacktrace;
       },
 
+      get breakpoints() {
+        return listBreakpoints();
+      },
+
       scripts: listScripts,
       setBreakpoint,
       list,

test/cli/break.test.js

@@ -48,6 +48,12 @@ test('stepping through breakpoints', (t) => {
     // Prepare additional breakpoints
     .then(() => cli.command('sb("break.js", 6)'))
     .then(() => cli.command('sb("otherFunction()")'))
+    .then(() => cli.command('sb(16)'))
+    .then(() => cli.command('breakpoints'))
+    .then(() => {
+      t.match(cli.output, '#0 examples/break.js:6');
+      t.match(cli.output, '#1 examples/break.js:16');
+    })
 
     .then(() => cli.command('list()'))
     .then(() => {
@@ -69,9 +75,14 @@ test('stepping through breakpoints', (t) => {
         'entered timers.js');
     })
     .then(() => cli.stepCommand('cont'))
+    .then(() => {
+      t.match(cli.output, 'break in examples/break.js:16',
+        'found breakpoint we set above w/ line number only');
+    })
+    .then(() => cli.stepCommand('cont'))
     .then(() => {
       t.match(cli.output, 'break in examples/break.js:6',
-        'found breakpoint we set above');
+        'found breakpoint we set above w/ line number & script');
     })
     .then(() => cli.stepCommand(''))
     .then(() => {