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-rw-r--r--lib/repl.js34
-rw-r--r--test/fixtures/repl-pretty-stack.js19
-rw-r--r--test/parallel/test-repl-pretty-custom-stack.js70
-rw-r--r--test/parallel/test-repl-pretty-stack.js55
-rw-r--r--test/parallel/test-repl.js2
5 files changed, 174 insertions, 6 deletions
diff --git a/lib/repl.js b/lib/repl.js
index b032521993..3ed7f7dd6d 100644
--- a/lib/repl.js
+++ b/lib/repl.js
@@ -285,14 +285,16 @@ function REPLServer(prompt,
self._domain.on('error', function debugDomainError(e) {
debug('domain error');
const top = replMap.get(self);
-
+ const pstrace = Error.prepareStackTrace;
+ Error.prepareStackTrace = prepareStackTrace(pstrace);
internalUtil.decorateErrorStack(e);
+ Error.prepareStackTrace = pstrace;
const isError = internalUtil.isError(e);
if (e instanceof SyntaxError && e.stack) {
// remove repl:line-number and stack trace
e.stack = e.stack
- .replace(/^repl:\d+\r?\n/, '')
- .replace(/^\s+at\s.*\n?/gm, '');
+ .replace(/^repl:\d+\r?\n/, '')
+ .replace(/^\s+at\s.*\n?/gm, '');
} else if (isError && self.replMode === exports.REPL_MODE_STRICT) {
e.stack = e.stack.replace(/(\s+at\s+repl:)(\d+)/,
(_, pre, line) => pre + (line - 1));
@@ -375,6 +377,30 @@ function REPLServer(prompt,
};
}
+ function filterInternalStackFrames(error, structuredStack) {
+ // search from the bottom of the call stack to
+ // find the first frame with a null function name
+ if (typeof structuredStack !== 'object')
+ return structuredStack;
+ const idx = structuredStack.reverse().findIndex(
+ (frame) => frame.getFunctionName() === null);
+
+ // if found, get rid of it and everything below it
+ structuredStack = structuredStack.splice(idx + 1);
+ return structuredStack;
+ }
+
+ function prepareStackTrace(fn) {
+ return (error, stackFrames) => {
+ const frames = filterInternalStackFrames(error, stackFrames);
+ if (fn) {
+ return fn(error, frames);
+ }
+ frames.push(error);
+ return frames.reverse().join('\n at ');
+ };
+ }
+
function _parseREPLKeyword(keyword, rest) {
var cmd = this.commands[keyword];
if (cmd) {
@@ -942,8 +968,6 @@ function complete(line, callback) {
} else {
const evalExpr = `try { ${expr} } catch (e) {}`;
this.eval(evalExpr, this.context, 'repl', (e, obj) => {
- // if (e) console.log(e);
-
if (obj != null) {
if (typeof obj === 'object' || typeof obj === 'function') {
try {
diff --git a/test/fixtures/repl-pretty-stack.js b/test/fixtures/repl-pretty-stack.js
new file mode 100644
index 0000000000..26e72beeca
--- /dev/null
+++ b/test/fixtures/repl-pretty-stack.js
@@ -0,0 +1,19 @@
+'use strict';
+
+function a() {
+ b();
+}
+
+function b() {
+ c();
+}
+
+function c() {
+ d(function() { throw new Error('Whoops!'); });
+}
+
+function d(f) {
+ f();
+}
+
+a(); \ No newline at end of file
diff --git a/test/parallel/test-repl-pretty-custom-stack.js b/test/parallel/test-repl-pretty-custom-stack.js
new file mode 100644
index 0000000000..be102c1d67
--- /dev/null
+++ b/test/parallel/test-repl-pretty-custom-stack.js
@@ -0,0 +1,70 @@
+'use strict';
+const common = require('../common');
+const fixtures = require('../common/fixtures');
+const assert = require('assert');
+const repl = require('repl');
+
+
+function run({ command, expected }) {
+ let accum = '';
+
+ const inputStream = new common.ArrayStream();
+ const outputStream = new common.ArrayStream();
+
+ outputStream.write = (data) => accum += data.replace('\r', '');
+
+ const r = repl.start({
+ prompt: '',
+ input: inputStream,
+ output: outputStream,
+ terminal: false,
+ useColors: false
+ });
+
+ r.write(`${command}\n`);
+ assert.strictEqual(accum, expected);
+ r.close();
+}
+
+const origPrepareStackTrace = Error.prepareStackTrace;
+Error.prepareStackTrace = (err, stack) => {
+ if (err instanceof SyntaxError)
+ return err.toString();
+ stack.push(err);
+ return stack.reverse().join('--->\n');
+};
+
+process.on('uncaughtException', (e) => {
+ Error.prepareStackTrace = origPrepareStackTrace;
+ throw e;
+});
+
+process.on('exit', () => (Error.prepareStackTrace = origPrepareStackTrace));
+
+const tests = [
+ {
+ // test .load for a file that throws
+ command: `.load ${fixtures.path('repl-pretty-stack.js')}`,
+ expected: 'Error: Whoops!--->\nrepl:9:24--->\nd (repl:12:3)--->\nc ' +
+ '(repl:9:3)--->\nb (repl:6:3)--->\na (repl:3:3)\n'
+ },
+ {
+ command: 'let x y;',
+ expected: 'let x y;\n ^\n\nSyntaxError: Unexpected identifier\n'
+ },
+ {
+ command: 'throw new Error(\'Whoops!\')',
+ expected: 'Error: Whoops!\n'
+ },
+ {
+ command: 'foo = bar;',
+ expected: 'ReferenceError: bar is not defined\n'
+ },
+ // test anonymous IIFE
+ {
+ command: '(function() { throw new Error(\'Whoops!\'); })()',
+ expected: 'Error: Whoops!--->\nrepl:1:21\n'
+ }
+];
+
+tests.forEach(run);
diff --git a/test/parallel/test-repl-pretty-stack.js b/test/parallel/test-repl-pretty-stack.js
new file mode 100644
index 0000000000..0fc6b3ada0
--- /dev/null
+++ b/test/parallel/test-repl-pretty-stack.js
@@ -0,0 +1,55 @@
+'use strict';
+const common = require('../common');
+const fixtures = require('../common/fixtures');
+const assert = require('assert');
+const repl = require('repl');
+
+
+function run({ command, expected }) {
+ let accum = '';
+
+ const inputStream = new common.ArrayStream();
+ const outputStream = new common.ArrayStream();
+
+ outputStream.write = (data) => accum += data.replace('\r', '');
+
+ const r = repl.start({
+ prompt: '',
+ input: inputStream,
+ output: outputStream,
+ terminal: false,
+ useColors: false
+ });
+
+ r.write(`${command}\n`);
+ assert.strictEqual(accum, expected);
+ r.close();
+}
+
+const tests = [
+ {
+ // test .load for a file that throws
+ command: `.load ${fixtures.path('repl-pretty-stack.js')}`,
+ expected: 'Error: Whoops!\n at repl:9:24\n at d (repl:12:3)\n ' +
+ 'at c (repl:9:3)\n at b (repl:6:3)\n at a (repl:3:3)\n'
+ },
+ {
+ command: 'let x y;',
+ expected: 'let x y;\n ^\n\nSyntaxError: Unexpected identifier\n\n'
+ },
+ {
+ command: 'throw new Error(\'Whoops!\')',
+ expected: 'Error: Whoops!\n'
+ },
+ {
+ command: 'foo = bar;',
+ expected: 'ReferenceError: bar is not defined\n'
+ },
+ // test anonymous IIFE
+ {
+ command: '(function() { throw new Error(\'Whoops!\'); })()',
+ expected: 'Error: Whoops!\n at repl:1:21\n'
+ }
+];
+
+tests.forEach(run);
diff --git a/test/parallel/test-repl.js b/test/parallel/test-repl.js
index 6df856a20e..54ad848b5b 100644
--- a/test/parallel/test-repl.js
+++ b/test/parallel/test-repl.js
@@ -71,7 +71,7 @@ function clean_up() {
function strict_mode_error_test() {
send_expect([
{ client: client_unix, send: 'ref = 1',
- expect: /^ReferenceError:\sref\sis\snot\sdefined\n\s+at\srepl:1:5/ },
+ expect: /^ReferenceError:\sref\sis\snot\sdefined\nnode via Unix socket> $/ },
]);
}