error-messages.md

Error Messages

invoke()

Missing dependencies are added to the error message.

var diFactory = require('./di.js');
var di = diFactory('app');
di.register('value').value(1);
di(function(test, value, dep) {});

Message

DependencyInjectionError: could not inject "test, dep" (either missing or not setPublic() if imported) (di: app)
... context ...
function (test, value, dep) {}
...

file()

If you register dependencies with register('name').file('file.js') and invoke with file('file.js'), the error message includes the filename.

// 'my/file.js'
module.exports = function (test, value, dep) {}

var diFactory = require('./di.js');
var di = diFactory('app');
di.register('value').value(1);
di.file('my/file.js');

Message

DependencyInjectionError: could not inject "test, dep" (either missing or not setPublic() if imported) (di: app)
    at file (my/file.js:1:0)
... context ...
function (test, value, dep) {}
...

require()

var di = diFactory('app');
di.require('test');

Message

DependencyInjectionError: "test" required, but not registered (di: app)