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go/internal/lsp/protocol/protocol.go
Ian Cottrell ff3f684ce0 internal/lsp: the core lsp protocol
This is not intended to be a user friendly package, just the rawest correct
implemenation of the protocol as a building block

Change-Id: Ib672b7f1e2fd8284be422dc7964f1876e94c9578
Reviewed-on: https://go-review.googlesource.com/136676
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2018-09-25 15:17:08 +00:00

35 lines
1.1 KiB
Go

// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package protocol
import (
"context"
"golang.org/x/tools/internal/jsonrpc2"
)
func canceller(ctx context.Context, conn *jsonrpc2.Conn, req *jsonrpc2.Request) {
conn.Notify(context.Background(), "$/cancelRequest", &CancelParams{ID: *req.ID})
}
func RunClient(ctx context.Context, stream jsonrpc2.Stream, client Client, opts ...interface{}) (*jsonrpc2.Conn, Server) {
opts = append([]interface{}{clientHandler(client), canceller}, opts...)
conn := jsonrpc2.NewConn(ctx, stream, opts...)
return conn, &serverDispatcher{Conn: conn}
}
func RunServer(ctx context.Context, stream jsonrpc2.Stream, server Server, opts ...interface{}) (*jsonrpc2.Conn, Client) {
opts = append([]interface{}{serverHandler(server), canceller}, opts...)
conn := jsonrpc2.NewConn(ctx, stream, opts...)
return conn, &clientDispatcher{Conn: conn}
}
func toJSONError(err error) *jsonrpc2.Error {
if jsonError, ok := err.(*jsonrpc2.Error); ok {
return jsonError
}
return jsonrpc2.NewErrorf(jsonrpc2.CodeParseError, "%v", err)
}