Type search custom request

[PizieDust]

TypeSearch Request

Description

This custom request allows clients to perform a type search at a specific position within a text document based on finding functions or types that match a specific query pattern.

Server capability

• property name: handleTypeSearch
• property type: boolean

Request

export interface TypeSearchParams extends TexDocumentPositionParams
{
    query: string;
    limit: int;
    with_doc: bool;
}

• method: ocamllsp/typeSearch
• params:
  • TextDocumentPositionParams: This is an existing interface that includes: - TextDocumentIdentifier: Specifies the document uri for which the request is sent. - Position: Specifies the cursor position. More details can be found in the TextDocumentPositionParams - LSP Specification.
  • query: The search pattern.
  • limit: The number of results to return
  • with_doc: If to return documentation information or not

Response

result: TypeSearch | null
export interface TypeSearch {
    type t = Query_protocol.type_search_result list
}

• t: A list of types that match the query.

  type Query_protocol.type_search_result =
  {
      name : string; // The fully qualified name of this result.
      typ : string;  // The signature of this result.
      loc : Range.t; // The location of the definition of this result in the source code.
      doc : string option; // Optional documentation associated with this result.
      cost : int; // A numeric value representing the "cost" or distance between this result and the query.
      constructible : string; // A constructible form or template that can be used to invoke this result
  }
  

• A response with null result is returned if no entries are found.

[coveralls]

Pull Request Test Coverage Report for Build 4607

Details

• 35 of 37 (94.59%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 22.034%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
ocaml-lsp-server/src/custom_requests/req_type_search.ml	35	37	94.59%
<!--	Total:	35	37

Totals
Change from base Build 4597:	0.1%
Covered Lines:	5599
Relevant Lines:	25411

---

💛 - Coveralls

[rgrinberg]

Nice. Which client is going to make use of this?

[xvw]

Nice. Which client is going to make use of this?

We probably will implement a VScode extension for the query

[rgrinberg]

Okay, I think we need to see that vscode client to evaluate this work.

[voodoos]

@xvw, @PizieDust, Melrin 5.2-502 has been released so the CI should pass without pinning and could be un-drafted. Is the custom request ready for a last round of review ?

[voodoos]

@PizieDust I think we should, similarly as for the Type enclosing custom request, provide a way to ask for different format for the documentation, like markdown, and maybe plaintext and html ?

[voodoos]

Client support in VScode is on the way: https://github.com/ocamllabs/vscode-ocaml-platform/pull/1626