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go/internal/lsp/fake/client.go
Rob Findley b8469989bc internal/lsp/fake: fix some messiness around client hooks
While writing the fake editor, I added some state tracking without using
it (log messages, events etc). We have since duplicated this logic in
the regtest package using client hooks.

Fix two messy aspects of this:
 - remove the state tracking in the editor
 - pass in the client hooks when connecting, so that they may be used
   without locking, and so that we do not miss any hooks that may fire
   during session initialization.

Change-Id: I24c17a28e9cfa4fca32b7ddd17c7bf01cbb12e0f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232744
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-05-08 18:47:54 +00:00

108 lines
3.5 KiB
Go

// Copyright 2020 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 fake
import (
"context"
"golang.org/x/tools/internal/lsp/protocol"
)
// ClientHooks are called to handle the corresponding client LSP method.
type ClientHooks struct {
OnLogMessage func(context.Context, *protocol.LogMessageParams) error
OnDiagnostics func(context.Context, *protocol.PublishDiagnosticsParams) error
OnWorkDoneProgressCreate func(context.Context, *protocol.WorkDoneProgressCreateParams) error
OnProgress func(context.Context, *protocol.ProgressParams) error
OnShowMessage func(context.Context, *protocol.ShowMessageParams) error
}
// Client is an adapter that converts an *Editor into an LSP Client. It mosly
// delegates functionality to hooks that can be configured by tests.
type Client struct {
editor *Editor
hooks ClientHooks
}
func (c *Client) ShowMessage(ctx context.Context, params *protocol.ShowMessageParams) error {
if c.hooks.OnShowMessage != nil {
return c.hooks.OnShowMessage(ctx, params)
}
return nil
}
func (c *Client) ShowMessageRequest(ctx context.Context, params *protocol.ShowMessageRequestParams) (*protocol.MessageActionItem, error) {
return nil, nil
}
func (c *Client) LogMessage(ctx context.Context, params *protocol.LogMessageParams) error {
if c.hooks.OnLogMessage != nil {
return c.hooks.OnLogMessage(ctx, params)
}
return nil
}
func (c *Client) Event(ctx context.Context, event *interface{}) error {
return nil
}
func (c *Client) PublishDiagnostics(ctx context.Context, params *protocol.PublishDiagnosticsParams) error {
if c.hooks.OnDiagnostics != nil {
return c.hooks.OnDiagnostics(ctx, params)
}
return nil
}
func (c *Client) WorkspaceFolders(context.Context) ([]protocol.WorkspaceFolder, error) {
return []protocol.WorkspaceFolder{}, nil
}
func (c *Client) Configuration(_ context.Context, p *protocol.ParamConfiguration) ([]interface{}, error) {
results := make([]interface{}, len(p.Items))
for i, item := range p.Items {
if item.Section != "gopls" {
continue
}
results[i] = c.editor.configuration()
}
return results, nil
}
func (c *Client) RegisterCapability(context.Context, *protocol.RegistrationParams) error {
return nil
}
func (c *Client) UnregisterCapability(context.Context, *protocol.UnregistrationParams) error {
return nil
}
func (c *Client) Progress(ctx context.Context, params *protocol.ProgressParams) error {
if c.hooks.OnProgress != nil {
return c.hooks.OnProgress(ctx, params)
}
return nil
}
func (c *Client) WorkDoneProgressCreate(ctx context.Context, params *protocol.WorkDoneProgressCreateParams) error {
if c.hooks.OnWorkDoneProgressCreate != nil {
return c.hooks.OnWorkDoneProgressCreate(ctx, params)
}
return nil
}
// ApplyEdit applies edits sent from the server. Note that as of writing gopls
// doesn't use this feature, so it is untested.
func (c *Client) ApplyEdit(ctx context.Context, params *protocol.ApplyWorkspaceEditParams) (*protocol.ApplyWorkspaceEditResponse, error) {
if len(params.Edit.Changes) != 0 {
return &protocol.ApplyWorkspaceEditResponse{FailureReason: "Edit.Changes is unsupported"}, nil
}
for _, change := range params.Edit.DocumentChanges {
path := c.editor.sandbox.Workdir.URIToPath(change.TextDocument.URI)
edits := convertEdits(change.Edits)
c.editor.EditBuffer(ctx, path, edits)
}
return &protocol.ApplyWorkspaceEditResponse{Applied: true}, nil
}