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go/internal/lsp/symbols.go
Rebecca Stambler 6889da9d54 internal/lsp: separate out getMapper function
This is a super minimal change that will simplify the diffs for when I
actually delete the getMapper function.

Change-Id: I16984b344c87b3645fd451668b6ea747c5be12ab
Reviewed-on: https://go-review.googlesource.com/c/tools/+/190557
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-08-16 20:05:58 +00:00

84 lines
2.2 KiB
Go

// 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"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
"golang.org/x/tools/internal/span"
"golang.org/x/tools/internal/telemetry/trace"
)
func (s *Server) documentSymbol(ctx context.Context, params *protocol.DocumentSymbolParams) ([]protocol.DocumentSymbol, error) {
ctx, done := trace.StartSpan(ctx, "lsp.Server.documentSymbol")
defer done()
uri := span.NewURI(params.TextDocument.URI)
view := s.session.ViewOf(uri)
f, err := getGoFile(ctx, view, uri)
if err != nil {
return nil, err
}
m, err := getMapper(ctx, f)
if err != nil {
return nil, err
}
symbols, err := source.DocumentSymbols(ctx, f)
if err != nil {
return nil, err
}
return toProtocolDocumentSymbols(m, symbols), nil
}
func toProtocolDocumentSymbols(m *protocol.ColumnMapper, symbols []source.Symbol) []protocol.DocumentSymbol {
result := make([]protocol.DocumentSymbol, 0, len(symbols))
for _, s := range symbols {
ps := protocol.DocumentSymbol{
Name: s.Name,
Kind: toProtocolSymbolKind(s.Kind),
Detail: s.Detail,
Children: toProtocolDocumentSymbols(m, s.Children),
}
if r, err := m.Range(s.Span); err == nil {
ps.Range = r
}
if r, err := m.Range(s.SelectionSpan); err == nil {
ps.SelectionRange = r
}
result = append(result, ps)
}
return result
}
func toProtocolSymbolKind(kind source.SymbolKind) protocol.SymbolKind {
switch kind {
case source.StructSymbol:
return protocol.Struct
case source.PackageSymbol:
return protocol.Package
case source.VariableSymbol:
return protocol.Variable
case source.ConstantSymbol:
return protocol.Constant
case source.FunctionSymbol:
return protocol.Function
case source.MethodSymbol:
return protocol.Method
case source.InterfaceSymbol:
return protocol.Interface
case source.NumberSymbol:
return protocol.Number
case source.StringSymbol:
return protocol.String
case source.BooleanSymbol:
return protocol.Boolean
case source.FieldSymbol:
return protocol.Field
default:
return 0
}
}