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// Copyright 2019 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 lsp
import (
"context"
"fmt"
"golang.org/x/tools/gopls/internal/lsp/protocol"
"golang.org/x/tools/gopls/internal/lsp/source"
"golang.org/x/tools/gopls/internal/lsp/template"
)
func (s *Server) definition(ctx context.Context, params *protocol.DefinitionParams) ([]protocol.Location, error) {
snapshot, fh, ok, release, err := s.beginFileRequest(ctx, params.TextDocument.URI, source.UnknownKind)
defer release()
if !ok {
return nil, err
}
if snapshot.View().FileKind(fh) == source.Tmpl {
return template.Definition(snapshot, fh, params.Position)
}
ident, err := source.Identifier(ctx, snapshot, fh, params.Position)
if err != nil {
return nil, err
}
if ident.IsImport() && !snapshot.View().Options().ImportShortcut.ShowDefinition() {
return nil, nil
}
var locations []protocol.Location
for _, ref := range ident.Declaration.MappedRange {
decRange, err := ref.Range()
if err != nil {
return nil, err
}
locations = append(locations, protocol.Location{
URI: protocol.URIFromSpanURI(ref.URI()),
Range: decRange,
})
}
return locations, nil
}
func (s *Server) typeDefinition(ctx context.Context, params *protocol.TypeDefinitionParams) ([]protocol.Location, error) {
snapshot, fh, ok, release, err := s.beginFileRequest(ctx, params.TextDocument.URI, source.Go)
defer release()
if !ok {
return nil, err
}
ident, err := source.Identifier(ctx, snapshot, fh, params.Position)
if err != nil {
return nil, err
}
if ident.Type.Object == nil {
return nil, fmt.Errorf("no type definition for %s", ident.Name)
}
identRange, err := ident.Type.Range()
if err != nil {
return nil, err
}
return []protocol.Location{
{
URI: protocol.URIFromSpanURI(ident.Type.URI()),
Range: identRange,
},
}, nil
}
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