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https://github.com/golang/go
synced 2024-09-30 22:58:34 -06:00
619de4ed67
This separates hides the wire structures, and then exposes a new Request type to allow for it to carry advanced features. It also embeds the connection into the request and changes the signature of the handler to no longer require a separate Conn argument. Change-Id: I20b54f146285f7a9cb5f279c6ebdf0f286f4b829 Reviewed-on: https://go-review.googlesource.com/c/tools/+/183717 Run-TryBot: Ian Cottrell <iancottrell@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Rebecca Stambler <rstambler@golang.org>
50 lines
1.6 KiB
Go
50 lines
1.6 KiB
Go
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package protocol
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import (
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"context"
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"golang.org/x/tools/internal/jsonrpc2"
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"golang.org/x/tools/internal/lsp/xlog"
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)
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const defaultMessageBufferSize = 20
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const defaultRejectIfOverloaded = false
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func canceller(ctx context.Context, conn *jsonrpc2.Conn, id jsonrpc2.ID) {
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conn.Notify(context.Background(), "$/cancelRequest", &CancelParams{ID: id})
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}
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func NewClient(stream jsonrpc2.Stream, client Client) (*jsonrpc2.Conn, Server, xlog.Logger) {
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log := xlog.New(NewLogger(client))
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conn := jsonrpc2.NewConn(stream)
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conn.Capacity = defaultMessageBufferSize
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conn.RejectIfOverloaded = defaultRejectIfOverloaded
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conn.Handler = clientHandler(log, client)
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conn.Canceler = jsonrpc2.Canceler(canceller)
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return conn, &serverDispatcher{Conn: conn}, log
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}
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func NewServer(stream jsonrpc2.Stream, server Server) (*jsonrpc2.Conn, Client, xlog.Logger) {
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conn := jsonrpc2.NewConn(stream)
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client := &clientDispatcher{Conn: conn}
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log := xlog.New(NewLogger(client))
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conn.Capacity = defaultMessageBufferSize
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conn.RejectIfOverloaded = defaultRejectIfOverloaded
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conn.Handler = serverHandler(log, server)
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conn.Canceler = jsonrpc2.Canceler(canceller)
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return conn, client, log
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}
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func sendParseError(ctx context.Context, log xlog.Logger, req *jsonrpc2.Request, err error) {
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if _, ok := err.(*jsonrpc2.Error); !ok {
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err = jsonrpc2.NewErrorf(jsonrpc2.CodeParseError, "%v", err)
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}
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if err := req.Reply(ctx, nil, err); err != nil {
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log.Errorf(ctx, "%v", err)
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}
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}
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