| // 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 server |
| |
| import ( |
| "context" |
| |
| "golang.org/x/tools/gopls/internal/file" |
| "golang.org/x/tools/gopls/internal/golang" |
| "golang.org/x/tools/gopls/internal/protocol" |
| "golang.org/x/tools/internal/event" |
| ) |
| |
| func (s *server) PrepareCallHierarchy(ctx context.Context, params *protocol.CallHierarchyPrepareParams) ([]protocol.CallHierarchyItem, error) { |
| ctx, done := event.Start(ctx, "lsp.Server.prepareCallHierarchy") |
| defer done() |
| |
| fh, snapshot, release, err := s.fileOf(ctx, params.TextDocument.URI) |
| if err != nil { |
| return nil, err |
| } |
| defer release() |
| if snapshot.FileKind(fh) != file.Go { |
| return nil, nil // empty result |
| } |
| return golang.PrepareCallHierarchy(ctx, snapshot, fh, params.Position) |
| } |
| |
| func (s *server) IncomingCalls(ctx context.Context, params *protocol.CallHierarchyIncomingCallsParams) ([]protocol.CallHierarchyIncomingCall, error) { |
| ctx, done := event.Start(ctx, "lsp.Server.incomingCalls") |
| defer done() |
| |
| fh, snapshot, release, err := s.fileOf(ctx, params.Item.URI) |
| if err != nil { |
| return nil, err |
| } |
| defer release() |
| if snapshot.FileKind(fh) != file.Go { |
| return nil, nil // empty result |
| } |
| return golang.IncomingCalls(ctx, snapshot, fh, params.Item.Range.Start) |
| } |
| |
| func (s *server) OutgoingCalls(ctx context.Context, params *protocol.CallHierarchyOutgoingCallsParams) ([]protocol.CallHierarchyOutgoingCall, error) { |
| ctx, done := event.Start(ctx, "lsp.Server.outgoingCalls") |
| defer done() |
| |
| fh, snapshot, release, err := s.fileOf(ctx, params.Item.URI) |
| if err != nil { |
| return nil, err |
| } |
| defer release() |
| if snapshot.FileKind(fh) != file.Go { |
| return nil, nil // empty result |
| } |
| return golang.OutgoingCalls(ctx, snapshot, fh, params.Item.Range.Start) |
| } |