Bug 494572

Description Sebastian Pahnke 2016-05-25 13:48:02 EDT

Consider the following tern plugin/type index:

define([
    'tern/lib/tern'
], function (tern) {

    tern.registerPlugin('test', function (server, options) {
        server.addDefs(defs);
    });

    var defs = {
        "!name": "test",
        "test": {
            "anonymizeEventInPeriod": {
                "!type": "fn(name: +Date)",
                "!doc": "Returns a new Foo object."
            },
            "foobar": {
                "!type": "fn(name: +Date)",
                "!doc": "Returns a new Foo object."
            },
        }
    };
});



If I type the following code into the editor I get a warning on anonymizeEventInPeriod saying:
'anonymizeEventInPeriod' is undefined for 'test' in test.

/* eslint-env test*/
test.anonymizeEventInPeriod(name)


What's weird about this is that I don't get a warning for the function foobar. There is also no warning if you remove name, which makes the syntax error go away. Another weird thing is that the naming and parameter type of the function anonymizeEventInPeriod has to be exactly as above (more or less: you can exchange Event with another word and still get an error; the parameter type must be an object instance).

I saw this in the code edit widget for my custom types. Maybe in the IDE you can use the tern index directly in a .tern-project file to reproduce the behavior.