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repl: don’t complete non-simple expressions

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Change the regular expression that recognizes “simple” JS expressions
to requiring that the full line needs to match it.

Previously, in terms like `a().b.`, `b.` would be a partial match.
This meant that completion would evaluate `b` and either fail with
a `ReferenceError` or, if `b` was some global, return the properties
of the global `b` object.

PR-URL: https://github.com/nodejs/node/pull/6192
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
This commit is contained in:
Anna Henningsen 2016-04-14 02:21:49 +02:00 committed by cjihrig
parent 0b1d89f35a
commit 0b66b8f2d2
2 changed files with 9 additions and 1 deletions
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2
lib/repl.js
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@ -647,7 +647,7 @@ ArrayStream.prototype.write = function() {};
const requireRE = /\brequire\s*\(['"](([\w\.\/-]+\/)?([\w\.\/-]*))/;
const simpleExpressionRE =
/(([a-zA-Z_$](?:\w|\$)*)\.)*([a-zA-Z_$](?:\w|\$)*)\.?$/;
/^\s*(([a-zA-Z_$](?:\w|\$)*)\.)*([a-zA-Z_$](?:\w|\$)*)\.?$/;
function intFilter(item) {
// filters out anything not starting with A-Z, a-z, $ or _

8
test/parallel/test-repl-tab-complete.js
View File

@ -249,3 +249,11 @@ testMe.complete('obj.', common.mustCall(function(error, data) {
assert.strictEqual(data[0].indexOf('obj.1a'), -1);
assert.notStrictEqual(data[0].indexOf('obj.a'), -1);
}));
// Don't try to complete results of non-simple expressions
putIn.run(['.clear']);
putIn.run(['function a() {}']);
testMe.complete('a().b.', common.mustCall((error, data) => {
assert.deepEqual(data, [[], undefined]);
}));