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go/internal/lsp/protocol/tsclient.go
Ian Cottrell 434f7a8fef internal/jsonrpc2: add concrete types for Call, Notify and Response
The previous implementation was exposing the details of the wire format
and resulted in non idomatic go, detecting the presence of absence of
values in fields to deterimine the message type.
Now the messages are distinct types and we use type switches instead.
Request still exists as an interface to expose the shared behaviour of
Call and Notification, as this is the type accepted by handlers.
The set of messages is deliberately closed by using a private methods on the
interfaces.

Change-Id: I2cf15ee3923ef4688670c62896f81f760c77fe04
Reviewed-on: https://go-review.googlesource.com/c/tools/+/228719
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-04-20 21:05:32 +00:00

197 lines
7.3 KiB
Go

package protocol
// Package protocol contains data types and code for LSP jsonrpcs
// generated automatically from vscode-languageserver-node
// commit: 151b520c995ee3d76729b5c46258ab273d989726
// last fetched Mon Mar 30 2020 21:01:17 GMT-0400 (Eastern Daylight Time)
// Code generated (see typescript/README.md) DO NOT EDIT.
import (
"context"
"encoding/json"
"fmt"
"golang.org/x/tools/internal/jsonrpc2"
"golang.org/x/tools/internal/xcontext"
)
type Client interface {
ShowMessage(context.Context, *ShowMessageParams) error
LogMessage(context.Context, *LogMessageParams) error
Event(context.Context, *interface{}) error
PublishDiagnostics(context.Context, *PublishDiagnosticsParams) error
Progress(context.Context, *ProgressParams) error
WorkspaceFolders(context.Context) ([]WorkspaceFolder /*WorkspaceFolder[] | null*/, error)
Configuration(context.Context, *ParamConfiguration) ([]interface{}, error)
WorkDoneProgressCreate(context.Context, *WorkDoneProgressCreateParams) error
RegisterCapability(context.Context, *RegistrationParams) error
UnregisterCapability(context.Context, *UnregistrationParams) error
ShowMessageRequest(context.Context, *ShowMessageRequestParams) (*MessageActionItem /*MessageActionItem | null*/, error)
ApplyEdit(context.Context, *ApplyWorkspaceEditParams) (*ApplyWorkspaceEditResponse, error)
}
func ClientHandler(client Client, handler jsonrpc2.Handler) jsonrpc2.Handler {
return func(ctx context.Context, reply jsonrpc2.Replier, r jsonrpc2.Request) error {
if ctx.Err() != nil {
ctx := xcontext.Detach(ctx)
return reply(ctx, nil, RequestCancelledError)
}
switch r.Method() {
case "window/showMessage": // notif
var params ShowMessageParams
if err := json.Unmarshal(r.Params(), &params); err != nil {
return sendParseError(ctx, reply, err)
}
err := client.ShowMessage(ctx, &params)
return reply(ctx, nil, err)
case "window/logMessage": // notif
var params LogMessageParams
if err := json.Unmarshal(r.Params(), &params); err != nil {
return sendParseError(ctx, reply, err)
}
err := client.LogMessage(ctx, &params)
return reply(ctx, nil, err)
case "telemetry/event": // notif
var params interface{}
if err := json.Unmarshal(r.Params(), &params); err != nil {
return sendParseError(ctx, reply, err)
}
err := client.Event(ctx, &params)
return reply(ctx, nil, err)
case "textDocument/publishDiagnostics": // notif
var params PublishDiagnosticsParams
if err := json.Unmarshal(r.Params(), &params); err != nil {
return sendParseError(ctx, reply, err)
}
err := client.PublishDiagnostics(ctx, &params)
return reply(ctx, nil, err)
case "$/progress": // notif
var params ProgressParams
if err := json.Unmarshal(r.Params(), &params); err != nil {
return sendParseError(ctx, reply, err)
}
err := client.Progress(ctx, &params)
return reply(ctx, nil, err)
case "workspace/workspaceFolders": // req
if len(r.Params()) > 0 {
return reply(ctx, nil, fmt.Errorf("%w: expected no params", jsonrpc2.ErrInvalidParams))
}
resp, err := client.WorkspaceFolders(ctx)
return reply(ctx, resp, err)
case "workspace/configuration": // req
var params ParamConfiguration
if err := json.Unmarshal(r.Params(), &params); err != nil {
return sendParseError(ctx, reply, err)
}
resp, err := client.Configuration(ctx, &params)
return reply(ctx, resp, err)
case "window/workDoneProgress/create": // req
var params WorkDoneProgressCreateParams
if err := json.Unmarshal(r.Params(), &params); err != nil {
return sendParseError(ctx, reply, err)
}
err := client.WorkDoneProgressCreate(ctx, &params)
return reply(ctx, nil, err)
case "client/registerCapability": // req
var params RegistrationParams
if err := json.Unmarshal(r.Params(), &params); err != nil {
return sendParseError(ctx, reply, err)
}
err := client.RegisterCapability(ctx, &params)
return reply(ctx, nil, err)
case "client/unregisterCapability": // req
var params UnregistrationParams
if err := json.Unmarshal(r.Params(), &params); err != nil {
return sendParseError(ctx, reply, err)
}
err := client.UnregisterCapability(ctx, &params)
return reply(ctx, nil, err)
case "window/showMessageRequest": // req
var params ShowMessageRequestParams
if err := json.Unmarshal(r.Params(), &params); err != nil {
return sendParseError(ctx, reply, err)
}
resp, err := client.ShowMessageRequest(ctx, &params)
return reply(ctx, resp, err)
case "workspace/applyEdit": // req
var params ApplyWorkspaceEditParams
if err := json.Unmarshal(r.Params(), &params); err != nil {
return sendParseError(ctx, reply, err)
}
resp, err := client.ApplyEdit(ctx, &params)
return reply(ctx, resp, err)
default:
return handler(ctx, reply, r)
}
}
}
type clientDispatcher struct {
*jsonrpc2.Conn
}
func (s *clientDispatcher) ShowMessage(ctx context.Context, params *ShowMessageParams) error {
return s.Conn.Notify(ctx, "window/showMessage", params)
}
func (s *clientDispatcher) LogMessage(ctx context.Context, params *LogMessageParams) error {
return s.Conn.Notify(ctx, "window/logMessage", params)
}
func (s *clientDispatcher) Event(ctx context.Context, params *interface{}) error {
return s.Conn.Notify(ctx, "telemetry/event", params)
}
func (s *clientDispatcher) PublishDiagnostics(ctx context.Context, params *PublishDiagnosticsParams) error {
return s.Conn.Notify(ctx, "textDocument/publishDiagnostics", params)
}
func (s *clientDispatcher) Progress(ctx context.Context, params *ProgressParams) error {
return s.Conn.Notify(ctx, "$/progress", params)
}
func (s *clientDispatcher) WorkspaceFolders(ctx context.Context) ([]WorkspaceFolder /*WorkspaceFolder[] | null*/, error) {
var result []WorkspaceFolder /*WorkspaceFolder[] | null*/
if err := Call(ctx, s.Conn, "workspace/workspaceFolders", nil, &result); err != nil {
return nil, err
}
return result, nil
}
func (s *clientDispatcher) Configuration(ctx context.Context, params *ParamConfiguration) ([]interface{}, error) {
var result []interface{}
if err := Call(ctx, s.Conn, "workspace/configuration", params, &result); err != nil {
return nil, err
}
return result, nil
}
func (s *clientDispatcher) WorkDoneProgressCreate(ctx context.Context, params *WorkDoneProgressCreateParams) error {
return Call(ctx, s.Conn, "window/workDoneProgress/create", params, nil) // Call, not Notify
}
func (s *clientDispatcher) RegisterCapability(ctx context.Context, params *RegistrationParams) error {
return Call(ctx, s.Conn, "client/registerCapability", params, nil) // Call, not Notify
}
func (s *clientDispatcher) UnregisterCapability(ctx context.Context, params *UnregistrationParams) error {
return Call(ctx, s.Conn, "client/unregisterCapability", params, nil) // Call, not Notify
}
func (s *clientDispatcher) ShowMessageRequest(ctx context.Context, params *ShowMessageRequestParams) (*MessageActionItem /*MessageActionItem | null*/, error) {
var result *MessageActionItem /*MessageActionItem | null*/
if err := Call(ctx, s.Conn, "window/showMessageRequest", params, &result); err != nil {
return nil, err
}
return result, nil
}
func (s *clientDispatcher) ApplyEdit(ctx context.Context, params *ApplyWorkspaceEditParams) (*ApplyWorkspaceEditResponse, error) {
var result *ApplyWorkspaceEditResponse
if err := Call(ctx, s.Conn, "workspace/applyEdit", params, &result); err != nil {
return nil, err
}
return result, nil
}