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ignore undefined messages in the debugger repl

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fixes #1995
This commit is contained in:
Fedor Indutny 2011-11-03 04:38:38 +06:00 committed by Ryan Dahl
parent c8646e0c41
commit 9ad27f7853
3 changed files with 7 additions and 4 deletions
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5
doc/api/repl.markdown
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@ -27,7 +27,7 @@ For example, you could add this to your bashrc file:
alias node="env NODE_NO_READLINE=1 rlwrap node"
### repl.start(prompt='> ', stream=process.stdin, eval=eval, useGlobal=false)
### repl.start(prompt='> ', stream=process.stdin, eval=eval, useGlobal=false, ignoreUndefined=false)
Starts a REPL with `prompt` as the prompt and `stream` for all I/O. `prompt`
is optional and defaults to `> `. `stream` is optional and defaults to
@ -36,6 +36,9 @@ is optional and defaults to `> `. `stream` is optional and defaults to
If `useGlobal` is set to true, then the repl will use the global object,
instead of running scripts in a separate context.
If `ignoreUndefined` is set to true, then the repl will not output return value
of command if it's `undefined`.
You can use your own `eval` function if it has following signature:
function eval(cmd, callback) {

2
lib/_debugger.js
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@ -724,7 +724,7 @@ function Interface(stdin, stdout, args) {
// Two eval modes are available: controlEval and debugEval
// But controlEval is used by default
this.repl = new repl.REPLServer('debug> ', streams,
this.controlEval.bind(this));
this.controlEval.bind(this), false, true);
// Kill child process when repl closed or main process is dead
this.repl.rli.addListener('close', function() {

4
lib/repl.js
View File

@ -68,7 +68,7 @@ module.paths = require('module')._nodeModulePaths(module.filename);
exports.writer = util.inspect;
function REPLServer(prompt, stream, eval, useGlobal) {
function REPLServer(prompt, stream, eval, useGlobal, ignoreUndefined) {
var self = this;
self.useGlobal = useGlobal;
@ -224,7 +224,7 @@ function REPLServer(prompt, stream, eval, useGlobal) {
self.bufferedCommand = '';
// If we got any output - print it (if no error)
if (!e) {
if (!e && (!ignoreUndefined || ret !== undefined)) {
self.context._ = ret;
self.outputStream.write(exports.writer(ret) + '\n');
}