Hover support

2025-06-18 14:55:38 -04:00 · 2020-08-11 19:40:59 -04:00 · 2020-08-11 19:40:59 -04:00 · e3689ffbd8
commit e3689ffbd8
parent 4af1dfcbd8
11 changed files with 301 additions and 83 deletions
--- a/go.mod
+++ b/go.mod
@ -11,7 +11,6 @@ require (
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/robertkrimen/otto v0.0.0-20191219234010-c382bd3c16ff
 	github.com/sergi/go-diff v1.1.0
-	github.com/sourcegraph/go-lsp v0.0.0-20200429204803-219e11d77f5d
 	github.com/stretchr/testify v1.4.0
 	github.com/yuin/gopher-lua v0.0.0-20191220021717-ab39c6098bdb
 	github.com/zyedidia/clipboard v1.0.3
@ -21,6 +20,8 @@ require (
 	github.com/zyedidia/pty v2.0.0+incompatible // indirect
 	github.com/zyedidia/tcell v1.4.10
 	github.com/zyedidia/terminal v0.0.0-20180726154117-533c623e2415
+	go.lsp.dev/protocol v0.8.0
+	go.lsp.dev/uri v0.3.0
 	golang.org/x/text v0.3.2
 	gopkg.in/sourcemap.v1 v1.0.5 // indirect
 	gopkg.in/yaml.v2 v2.2.7
--- a/go.sum
+++ b/go.sum
@ -1,44 +1,136 @@
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 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
+gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
 gopkg.in/sourcemap.v1 v1.0.5 h1:inv58fC9f9J3TK2Y2R1NPntXEn3/wjWHkonhIUODNTI=
 gopkg.in/sourcemap.v1 v1.0.5/go.mod h1:2RlvNNSMglmRrcvhfuzp4hQHwOtjxlbjX7UPY/GXb78=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.7 h1:VUgggvou5XRW9mHwD/yXxIYSMtY0zoKQf/v226p2nyo=
 gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+grpc.go4.org v0.0.0-20170609214715-11d0a25b4919/go.mod h1:77eQGdRu53HpSqPFJFmuJdjuHRquDANNeA4x7B8WQ9o=
+honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
+honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
 layeh.com/gopher-luar v1.0.7 h1:53iv6CCkRs5wyofZ+qVXcyAYQOIG52s6pt4xkqZdq7k=
 layeh.com/gopher-luar v1.0.7/go.mod h1:TPnIVCZ2RJBndm7ohXyaqfhzjlZ+OA2SZR/YwL8tECk=
+sourcegraph.com/sourcegraph/go-diff v0.5.0/go.mod h1:kuch7UrkMzY0X+p9CRK03kfuPQ2zzQcaEFbx8wA8rck=
+sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=
--- a/internal/action/actions.go
+++ b/internal/action/actions.go
@ -10,6 +10,7 @@ import (
 	"github.com/zyedidia/micro/v2/internal/buffer"
 	"github.com/zyedidia/micro/v2/internal/clipboard"
 	"github.com/zyedidia/micro/v2/internal/config"
+	"github.com/zyedidia/micro/v2/internal/lsp"
 	"github.com/zyedidia/micro/v2/internal/screen"
 	"github.com/zyedidia/micro/v2/internal/shell"
 	"github.com/zyedidia/micro/v2/internal/util"
@ -1814,6 +1815,20 @@ func (h *BufPane) RemoveAllMultiCursors() bool {
 	return true
 }

+func (h *BufPane) SemanticInfo() bool {
+	info, err := h.Buf.Server.Hover(h.Buf.AbsPath, lsp.Position(h.Cursor.X, h.Cursor.Y))
+
+	if err != nil {
+		InfoBar.Error(err)
+		return false
+	}
+
+	info = strings.Split(info, "\n")[0]
+
+	InfoBar.Message(info)
+	return true
+}
+
 // None is an action that does nothing
 func (h *BufPane) None() bool {
 	return true
--- a/internal/action/bufpane.go
+++ b/internal/action/bufpane.go
@ -688,6 +688,7 @@ var BufKeyActions = map[string]BufKeyAction{
 	"JumpLine":                  (*BufPane).JumpLine,
 	"Deselect":                  (*BufPane).Deselect,
 	"ClearInfo":                 (*BufPane).ClearInfo,
+	"SemanticInfo":              (*BufPane).SemanticInfo,
 	"None":                      (*BufPane).None,

 	// This was changed to InsertNewline but I don't want to break backwards compatibility
--- a/internal/action/defaults_other.go
+++ b/internal/action/defaults_other.go
@ -72,6 +72,7 @@ var bufdefaults = map[string]string{
 	"Ctrl-w":         "NextSplit",
 	"Ctrl-u":         "ToggleMacro",
 	"Ctrl-j":         "PlayMacro",
+	"Alt-i":          "SemanticInfo",
 	"Insert":         "ToggleOverwriteMode",

 	// Emacs-style keybindings
--- a/internal/buffer/autocomplete.go
+++ b/internal/buffer/autocomplete.go
@ -7,7 +7,7 @@ import (
 	"sort"
 	"strings"

-	lspt "github.com/sourcegraph/go-lsp"
+	"github.com/zyedidia/micro/v2/internal/lsp"
 	"github.com/zyedidia/micro/v2/internal/util"
 )

@ -213,11 +213,8 @@ func LSPComplete(b *Buffer) ([]string, []string) {
 		return []string{}, []string{}
 	}

-	pos := lspt.Position{
-		Line:      c.Y,
-		Character: c.X,
-	}
-	items, err := b.server.Completion(b.AbsPath, pos)
+	pos := lsp.Position(c.X, c.Y)
+	items, err := b.Server.Completion(b.AbsPath, pos)
 	if err != nil {
 		return []string{}, []string{}
 	}
--- a/internal/buffer/buffer.go
+++ b/internal/buffer/buffer.go
@ -18,13 +18,13 @@ import (
 	"time"

 	dmp "github.com/sergi/go-diff/diffmatchpatch"
-	lspt "github.com/sourcegraph/go-lsp"
 	"github.com/zyedidia/micro/v2/internal/config"
 	"github.com/zyedidia/micro/v2/internal/lsp"
 	ulua "github.com/zyedidia/micro/v2/internal/lua"
 	"github.com/zyedidia/micro/v2/internal/screen"
 	"github.com/zyedidia/micro/v2/internal/util"
 	"github.com/zyedidia/micro/v2/pkg/highlight"
+	lspt "go.lsp.dev/protocol"
 	"golang.org/x/text/encoding/htmlindex"
 	"golang.org/x/text/encoding/unicode"
 	"golang.org/x/text/transform"
@ -126,8 +126,8 @@ type SharedBuffer struct {
 	// Hash of the original buffer -- empty if fastdirty is on
 	origHash [md5.Size]byte

-	server  *lsp.Server
-	version int
+	Server  *lsp.Server
+	version uint64
 }

 func (b *SharedBuffer) insert(pos Loc, value []byte) {
@ -154,26 +154,20 @@ func (b *SharedBuffer) lspDidChange(start, end Loc, text string) {
 	// TODO: convert to UTF16 codepoints
 	change := lspt.TextDocumentContentChangeEvent{
 		Range: &lspt.Range{
-			Start: lspt.Position{
-				Line:      start.Y,
-				Character: start.X,
-			},
-			End: lspt.Position{
-				Line:      end.Y,
-				Character: end.X,
-			},
+			Start: lsp.Position(start.X, start.Y),
+			End:   lsp.Position(end.X, end.Y),
 		},
 		Text: text,
 	}

 	if b.HasLSP() {
-		b.server.DidChange(b.AbsPath, b.version, []lspt.TextDocumentContentChangeEvent{change})
+		b.Server.DidChange(b.AbsPath, &b.version, []lspt.TextDocumentContentChangeEvent{change})
 	}
 }

 // HasLSP returns whether this buffer is communicating with an LSP server
 func (b *SharedBuffer) HasLSP() bool {
-	return b.server != nil && b.server.Active
+	return b.Server != nil && b.Server.Active
 }

 // MarkModified marks the buffer as modified for this frame
@ -420,12 +414,12 @@ func (b *Buffer) lspInit() {
 	ft := b.Settings["filetype"].(string)
 	l, ok := lsp.GetLanguage(ft)
 	if ok && l.Installed() {
-		b.server = lsp.GetServer(l, gopath.Dir(b.AbsPath))
-		if b.server == nil {
+		b.Server = lsp.GetServer(l, gopath.Dir(b.AbsPath))
+		if b.Server == nil {
 			var err error
-			b.server, err = lsp.StartServer(l)
+			b.Server, err = lsp.StartServer(l)
 			if err == nil {
-				b.server.Initialize(gopath.Dir(b.AbsPath))
+				b.Server.Initialize(gopath.Dir(b.AbsPath))
 			}
 		}
 		if b.HasLSP() {
@ -433,7 +427,7 @@ func (b *Buffer) lspInit() {
 			if len(bytes) == 0 {
 				bytes = []byte{'\n'}
 			}
-			b.server.DidOpen(b.AbsPath, ft, string(bytes), b.version)
+			b.Server.DidOpen(b.AbsPath, ft, string(bytes), &b.version)
 		}
 	}
 }
@ -464,7 +458,7 @@ func (b *Buffer) Fini() {
 	}

 	if b.HasLSP() {
-		b.server.DidClose(b.AbsPath)
+		b.Server.DidClose(b.AbsPath)
 	}
 }

--- a/internal/buffer/save.go
+++ b/internal/buffer/save.go
@ -197,7 +197,7 @@ func (b *Buffer) saveToFile(filename string, withSudo bool) error {
 	b.UpdateRules()

 	if b.HasLSP() {
-		b.server.DidSave(b.AbsPath)
+		b.Server.DidSave(b.AbsPath)
 	}

 	return err
--- a/internal/lsp/notifications.go
+++ b/internal/lsp/notifications.go
@ -1,12 +1,15 @@
 package lsp

-import "github.com/sourcegraph/go-lsp"
+import (
+	lsp "go.lsp.dev/protocol"
+	"go.lsp.dev/uri"
+)

-func (s *Server) DidOpen(filename, language, text string, version int) {
+func (s *Server) DidOpen(filename, language, text string, version *uint64) {
 	doc := lsp.TextDocumentItem{
-		URI:        lsp.DocumentURI("file://" + filename),
-		LanguageID: language,
-		Version:    version,
+		URI:        uri.File(filename),
+		LanguageID: lsp.LanguageIdentifier(language),
+		Version:    float64(*version), // not sure why this is a float on go.lsp.dev
 		Text:       text,
 	}

@ -19,7 +22,7 @@ func (s *Server) DidOpen(filename, language, text string, version int) {

 func (s *Server) DidSave(filename string) {
 	doc := lsp.TextDocumentIdentifier{
-		URI: lsp.DocumentURI("file://" + filename),
+		URI: uri.File(filename),
 	}

 	params := lsp.DidSaveTextDocumentParams{
@ -28,10 +31,10 @@ func (s *Server) DidSave(filename string) {
 	go s.sendNotification("textDocument/didSave", params)
 }

-func (s *Server) DidChange(filename string, version int, changes []lsp.TextDocumentContentChangeEvent) {
+func (s *Server) DidChange(filename string, version *uint64, changes []lsp.TextDocumentContentChangeEvent) {
 	doc := lsp.VersionedTextDocumentIdentifier{
 		TextDocumentIdentifier: lsp.TextDocumentIdentifier{
-			URI: lsp.DocumentURI("file://" + filename),
+			URI: uri.File(filename),
 		},
 		Version: version,
 	}
@ -45,7 +48,7 @@ func (s *Server) DidChange(filename string, version int, changes []lsp.TextDocum

 func (s *Server) DidClose(filename string) {
 	doc := lsp.TextDocumentIdentifier{
-		URI: lsp.DocumentURI("file://" + filename),
+		URI: uri.File(filename),
 	}

 	params := lsp.DidCloseTextDocumentParams{
--- a/internal/lsp/requests.go
+++ b/internal/lsp/requests.go
@ -3,7 +3,8 @@ package lsp
 import (
 	"encoding/json"

-	"github.com/sourcegraph/go-lsp"
+	lsp "go.lsp.dev/protocol"
+	"go.lsp.dev/uri"
 )

 type RPCCompletion struct {
@ -12,6 +13,19 @@ type RPCCompletion struct {
 	Result     lsp.CompletionList `json:"result"`
 }

+type RPCHover struct {
+	RPCVersion string    `json:"jsonrpc"`
+	ID         int       `json:"id"`
+	Result     lsp.Hover `json:"result"`
+}
+
+func Position(x, y int) lsp.Position {
+	return lsp.Position{
+		Line:      float64(y),
+		Character: float64(x),
+	}
+}
+
 func (s *Server) DocumentFormat() {

 }
@ -22,19 +36,19 @@ func (s *Server) DocumentRangeFormat() {

 func (s *Server) Completion(filename string, pos lsp.Position) ([]lsp.CompletionItem, error) {
 	cc := lsp.CompletionContext{
-		TriggerKind: lsp.CTKInvoked,
+		TriggerKind: lsp.Invoked,
 	}

 	docpos := lsp.TextDocumentPositionParams{
 		TextDocument: lsp.TextDocumentIdentifier{
-			URI: lsp.DocumentURI("file://" + filename),
+			URI: uri.File(filename),
 		},
 		Position: pos,
 	}

 	params := lsp.CompletionParams{
 		TextDocumentPositionParams: docpos,
-		Context:                    cc,
+		Context:                    &cc,
 	}
 	resp, err := s.sendRequest("textDocument/completion", params)
 	if err != nil {
@ -53,3 +67,25 @@ func (s *Server) Completion(filename string, pos lsp.Position) ([]lsp.Completion
 func (s *Server) CompletionResolve() {

 }
+
+func (s *Server) Hover(filename string, pos lsp.Position) (string, error) {
+	params := lsp.TextDocumentPositionParams{
+		TextDocument: lsp.TextDocumentIdentifier{
+			URI: uri.File(filename),
+		},
+		Position: pos,
+	}
+
+	resp, err := s.sendRequest("textDocument/hover", params)
+	if err != nil {
+		return "", err
+	}
+
+	var r RPCHover
+	err = json.Unmarshal(resp, &r)
+	if err != nil {
+		return "", err
+	}
+
+	return r.Result.Contents.Value, nil
+}
--- a/internal/lsp/server.go
+++ b/internal/lsp/server.go
@ -11,8 +11,8 @@ import (
 	"strings"
 	"sync"

-	"github.com/sourcegraph/go-lsp"
-	"github.com/zyedidia/micro/v2/internal/util"
+	lsp "go.lsp.dev/protocol"
+	"go.lsp.dev/uri"
 )

 var activeServers map[string]*Server
@ -102,56 +102,36 @@ func StartServer(l Language) (*Server, error) {
 // The directory must be an absolute path
 func (s *Server) Initialize(directory string) {
 	params := lsp.InitializeParams{
-		ProcessID: os.Getpid(),
-		RootURI:   lsp.DocumentURI("file://" + directory),
-		ClientInfo: lsp.ClientInfo{
-			Name:    "micro",
-			Version: util.Version,
-		},
-		Trace: "off",
+		ProcessID: float64(os.Getpid()),
+		RootURI:   uri.File(directory),
 		Capabilities: lsp.ClientCapabilities{
-			Workspace: lsp.WorkspaceClientCapabilities{
-				WorkspaceEdit: struct {
-					DocumentChanges    bool     `json:"documentChanges,omitempty"`
-					ResourceOperations []string `json:"resourceOperations,omitempty"`
-				}{
+			Workspace: &lsp.WorkspaceClientCapabilities{
+				WorkspaceEdit: &lsp.WorkspaceClientCapabilitiesWorkspaceEdit{
 					DocumentChanges:    true,
 					ResourceOperations: []string{"create", "rename", "delete"},
 				},
 				ApplyEdit: true,
 			},
-			TextDocument: lsp.TextDocumentClientCapabilities{
-				Formatting: &struct {
-					DynamicRegistration bool `json:"dynamicRegistration,omitempty"`
-				}{
-					DynamicRegistration: true,
+			TextDocument: &lsp.TextDocumentClientCapabilities{
+				Formatting: &lsp.TextDocumentClientCapabilitiesFormatting{
+					DynamicRegistration: false,
 				},
-				Completion: struct {
-					CompletionItem struct {
-						DocumentationFormat []lsp.DocumentationFormat `json:"documentationFormat,omitempty"`
-						SnippetSupport      bool                      `json:"snippetSupport,omitempty"`
-					} `json:"completionItem,omitempty"`
-
-					CompletionItemKind struct {
-						ValueSet []lsp.CompletionItemKind `json:"valueSet,omitempty"`
-					} `json:"completionItemKind,omitempty"`
-
-					ContextSupport bool `json:"contextSupport,omitempty"`
-				}{
-					CompletionItem: struct {
-						DocumentationFormat []lsp.DocumentationFormat `json:"documentationFormat,omitempty"`
-						SnippetSupport      bool                      `json:"snippetSupport,omitempty"`
-					}{
-						DocumentationFormat: []lsp.DocumentationFormat{lsp.DFPlainText},
-						SnippetSupport:      false,
+				Completion: &lsp.TextDocumentClientCapabilitiesCompletion{
+					DynamicRegistration: false,
+					CompletionItem: &lsp.TextDocumentClientCapabilitiesCompletionItem{
+						SnippetSupport:          false,
+						CommitCharactersSupport: false,
+						DocumentationFormat:     []lsp.MarkupKind{lsp.PlainText},
+						DeprecatedSupport:       false,
+						PreselectSupport:        false,
 					},
 					ContextSupport: false,
 				},
+				Hover: &lsp.TextDocumentClientCapabilitiesHover{
+					DynamicRegistration: false,
+					ContentFormat:       []lsp.MarkupKind{lsp.PlainText},
+				},
 			},
-			Window: lsp.WindowClientCapabilities{
-				WorkDoneProgress: false,
-			},
-			Experimental: nil,
 		},
 	}