typedef CompletionRegistrationOptions

Most tools trigger completion request automatically without explicitly requesting it using a keyboard shortcut (e.g. Ctrl+Space). Typically they do so when the user starts to type an identifier. For example if the user types c in a JavaScript file code complete will automatically pop up present console besides others as a completion item. Characters that make up identifiers don't need to be listed here.

If code complete should automatically be trigger on characters not being valid inside an identifier (for example . in JavaScript) list them in triggerCharacters.

The server provides support to resolve additional information for a completion item.

A document selector to identify the scope of the registration. If set to null the document selector provided on the client side will be used.

The server supports the following CompletionItem specific capabilities.

The list of all possible characters that commit a completion. This field can be used if clients don't support individual commmit characters per completion item. See ClientCapabilities.textDocument.completion.completionItem.commitCharactersSupport

If a server provides both allCommitCharacters and commit characters on an individual completion item the ones on the completion item win.