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readline: handle null completer graciously 

Fixes #1698.
pull/22966/head
Ben Noordhuis 2011-09-14 17:07:58 +02:00
parent 244675cab1
commit 92d4ed397b
1 changed files with 7 additions and 3 deletions
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8
lib/readline.js
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@ -45,6 +45,12 @@ function Interface(input, output, completer) {
}
EventEmitter.call(this);
completer = completer || function() { return []; };
if (typeof completer !== 'function') {
throw new TypeError("Argument 'completer' must be a function");
}
var self = this;
this.output = output;
@ -605,9 +611,7 @@ Interface.prototype._ttyWrite = function(s, key) {
break;
case 'tab': // tab completion
if (this.completer) {
this._tabComplete();
}
break;
case 'left':