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handler.go
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package handler
import (
"context"
"encoding/json"
"fmt"
"io"
"log"
"os"
"regexp"
"strconv"
"strings"
"sync"
"time"
"github.com/arduino/arduino-cli/arduino/builder"
"github.com/arduino/arduino-cli/executils"
"github.com/arduino/go-paths-helper"
"github.com/bcmi-labs/arduino-language-server/handler/sourcemapper"
"github.com/bcmi-labs/arduino-language-server/handler/textutils"
"github.com/bcmi-labs/arduino-language-server/lsp"
"github.com/bcmi-labs/arduino-language-server/streams"
"github.com/pkg/errors"
"github.com/sourcegraph/jsonrpc2"
)
var globalCliPath string
var globalClangdPath string
var enableLogging bool
var asyncProcessing bool
// Setup initializes global variables.
func Setup(cliPath string, clangdPath string, _enableLogging bool, _asyncProcessing bool) {
globalCliPath = cliPath
globalClangdPath = clangdPath
enableLogging = _enableLogging
asyncProcessing = _asyncProcessing
}
// CLangdStarter starts clangd and returns its stdin/out/err
type CLangdStarter func() (stdin io.WriteCloser, stdout io.ReadCloser, stderr io.ReadCloser)
// InoHandler is a JSON-RPC handler that delegates messages to clangd.
type InoHandler struct {
StdioConn *jsonrpc2.Conn
ClangdConn *jsonrpc2.Conn
lspInitializeParams *lsp.InitializeParams
buildPath *paths.Path
buildSketchRoot *paths.Path
buildSketchCpp *paths.Path
buildSketchCppVersion int
buildSketchSymbols []lsp.DocumentSymbol
buildSketchSymbolsLoad bool
buildSketchSymbolsCheck bool
rebuildSketchDeadline *time.Time
rebuildSketchDeadlineMutex sync.Mutex
sketchRoot *paths.Path
sketchName string
sketchMapper *sourcemapper.InoMapper
sketchTrackedFilesCount int
docs map[lsp.DocumentURI]*lsp.TextDocumentItem
inoDocsWithDiagnostics map[lsp.DocumentURI]bool
config lsp.BoardConfig
synchronizer Synchronizer
}
// NewInoHandler creates and configures an InoHandler.
func NewInoHandler(stdio io.ReadWriteCloser, board lsp.Board) *InoHandler {
handler := &InoHandler{
docs: map[lsp.DocumentURI]*lsp.TextDocumentItem{},
inoDocsWithDiagnostics: map[lsp.DocumentURI]bool{},
config: lsp.BoardConfig{
SelectedBoard: board,
},
}
stdStream := jsonrpc2.NewBufferedStream(stdio, jsonrpc2.VSCodeObjectCodec{})
var stdHandler jsonrpc2.Handler = jsonrpc2.HandlerWithError(handler.HandleMessageFromIDE)
if asyncProcessing {
stdHandler = AsyncHandler{
handler: stdHandler,
synchronizer: &handler.synchronizer,
}
}
handler.StdioConn = jsonrpc2.NewConn(context.Background(), stdStream, stdHandler)
if enableLogging {
log.Println("Initial board configuration:", board)
}
go handler.rebuildEnvironmentLoop()
return handler
}
// FileData gathers information on a .ino source file.
type FileData struct {
sourceText string
sourceURI lsp.DocumentURI
targetURI lsp.DocumentURI
sourceMap *sourcemapper.InoMapper
version int
}
// StopClangd closes the connection to the clangd process.
func (handler *InoHandler) StopClangd() {
handler.ClangdConn.Close()
handler.ClangdConn = nil
}
// HandleMessageFromIDE handles a message received from the IDE client (via stdio).
func (handler *InoHandler) HandleMessageFromIDE(ctx context.Context, conn *jsonrpc2.Conn, req *jsonrpc2.Request) (interface{}, error) {
defer streams.CatchAndLogPanic()
needsWriteLock := map[string]bool{
"initialize": true,
"textDocument/didOpen": true,
"textDocument/didChange": true,
"textDocument/didClose": true,
}
if needsWriteLock[req.Method] {
handler.synchronizer.DataMux.Lock()
defer handler.synchronizer.DataMux.Unlock()
} else {
handler.synchronizer.DataMux.RLock()
defer handler.synchronizer.DataMux.RUnlock()
}
// Handle LSP methods: transform parameters and send to clangd
var inoURI, cppURI lsp.DocumentURI
params, err := lsp.ReadParams(req.Method, req.Params)
if err != nil {
return nil, err
}
if params == nil {
params = req.Params
}
switch p := params.(type) {
case *lsp.InitializeParams:
// method "initialize"
err = handler.initializeWorkbench(p)
case *lsp.InitializedParams:
// method "initialized"
log.Println("--> initialized")
case *lsp.DidOpenTextDocumentParams:
// method "textDocument/didOpen"
inoURI = p.TextDocument.URI
log.Printf("--> didOpen(%s@%d as '%s')", p.TextDocument.URI, p.TextDocument.Version, p.TextDocument.LanguageID)
if res, e := handler.didOpen(p); e != nil {
params = nil
err = e
} else if res == nil {
log.Println(" --X notification is not propagated to clangd")
return nil, nil // do not propagate to clangd
} else {
log.Printf(" --> didOpen(%s@%d as '%s')", res.TextDocument.URI, res.TextDocument.Version, p.TextDocument.LanguageID)
params = res
}
case *lsp.DidCloseTextDocumentParams:
// Method: "textDocument/didClose"
inoURI = p.TextDocument.URI
log.Printf("--> didClose(%s)", p.TextDocument.URI)
if res, e := handler.didClose(p); e != nil {
} else if res == nil {
log.Println(" --X notification is not propagated to clangd")
return nil, nil // do not propagate to clangd
} else {
log.Printf(" --> didClose(%s)", res.TextDocument.URI)
params = res
}
case *lsp.DidChangeTextDocumentParams:
// notification "textDocument/didChange"
inoURI = p.TextDocument.URI
log.Printf("--> didChange(%s@%d)", p.TextDocument.URI, p.TextDocument.Version)
for _, change := range p.ContentChanges {
log.Printf(" > %s -> %s", change.Range, strconv.Quote(change.Text))
}
if res, err := handler.didChange(ctx, p); err != nil {
log.Printf(" --E error: %s", err)
return nil, err
} else if res == nil {
log.Println(" --X notification is not propagated to clangd")
return nil, err // do not propagate to clangd
} else {
p = res
}
log.Printf(" --> didChange(%s@%d)", p.TextDocument.URI, p.TextDocument.Version)
for _, change := range p.ContentChanges {
log.Printf(" > %s -> %s", change.Range, strconv.Quote(change.Text))
}
err = handler.ClangdConn.Notify(ctx, req.Method, p)
return nil, err
case *lsp.CompletionParams:
// method: "textDocument/completion"
inoURI = p.TextDocument.URI
log.Printf("--> completion(%s:%d:%d)\n", p.TextDocument.URI, p.Position.Line, p.Position.Character)
if res, e := handler.ino2cppTextDocumentPositionParams(&p.TextDocumentPositionParams); e == nil {
p.TextDocumentPositionParams = *res
log.Printf(" --> completion(%s:%d:%d)\n", p.TextDocument.URI, p.Position.Line, p.Position.Character)
} else {
err = e
}
case *lsp.CodeActionParams:
// method "textDocument/codeAction"
inoURI = p.TextDocument.URI
log.Printf("--> codeAction(%s:%s)", p.TextDocument.URI, p.Range.Start)
p.TextDocument, err = handler.ino2cppTextDocumentIdentifier(p.TextDocument)
if err != nil {
break
}
if p.TextDocument.URI.AsPath().EquivalentTo(handler.buildSketchCpp) {
p.Range = handler.sketchMapper.InoToCppLSPRange(inoURI, p.Range)
for index := range p.Context.Diagnostics {
r := &p.Context.Diagnostics[index].Range
*r = handler.sketchMapper.InoToCppLSPRange(inoURI, *r)
}
}
log.Printf(" --> codeAction(%s:%s)", p.TextDocument.URI, p.Range.Start)
case *lsp.HoverParams:
// method: "textDocument/hover"
inoURI = p.TextDocument.URI
doc := &p.TextDocumentPositionParams
log.Printf("--> hover(%s:%d:%d)\n", doc.TextDocument.URI, doc.Position.Line, doc.Position.Character)
if res, e := handler.ino2cppTextDocumentPositionParams(doc); e == nil {
p.TextDocumentPositionParams = *res
log.Printf(" --> hover(%s:%d:%d)\n", doc.TextDocument.URI, doc.Position.Line, doc.Position.Character)
} else {
err = e
}
case *lsp.DocumentSymbolParams:
// method "textDocument/documentSymbol"
inoURI = p.TextDocument.URI
log.Printf("--> documentSymbol(%s)", p.TextDocument.URI)
p.TextDocument, err = handler.ino2cppTextDocumentIdentifier(p.TextDocument)
log.Printf(" --> documentSymbol(%s)", p.TextDocument.URI)
case *lsp.DocumentFormattingParams:
// method "textDocument/formatting"
inoURI = p.TextDocument.URI
log.Printf("--> formatting(%s)", p.TextDocument.URI)
p.TextDocument, err = handler.ino2cppTextDocumentIdentifier(p.TextDocument)
cppURI = p.TextDocument.URI
log.Printf(" --> formatting(%s)", p.TextDocument.URI)
case *lsp.DocumentRangeFormattingParams:
// Method: "textDocument/rangeFormatting"
log.Printf("--> %s(%s:%s)", req.Method, p.TextDocument.URI, p.Range)
inoURI = p.TextDocument.URI
if cppParams, e := handler.ino2cppDocumentRangeFormattingParams(p); e == nil {
params = cppParams
cppURI = cppParams.TextDocument.URI
log.Printf(" --> %s(%s:%s)", req.Method, cppParams.TextDocument.URI, cppParams.Range)
} else {
err = e
}
case *lsp.TextDocumentPositionParams:
// Method: "textDocument/signatureHelp"
// Method: "textDocument/definition"
// Method: "textDocument/typeDefinition"
// Method: "textDocument/implementation"
// Method: "textDocument/documentHighlight"
log.Printf("--> %s(%s:%s)", req.Method, p.TextDocument.URI, p.Position)
inoURI = p.TextDocument.URI
if res, e := handler.ino2cppTextDocumentPositionParams(p); e == nil {
cppURI = p.TextDocument.URI
params = res
log.Printf(" --> %s(%s:%s)", req.Method, p.TextDocument.URI, p.Position)
} else {
err = e
}
case *lsp.DidSaveTextDocumentParams:
// Method: "textDocument/didSave"
log.Printf("--> %s(%s)", req.Method, p.TextDocument.URI)
inoURI = p.TextDocument.URI
p.TextDocument, err = handler.ino2cppTextDocumentIdentifier(p.TextDocument)
cppURI = p.TextDocument.URI
if cppURI.AsPath().EquivalentTo(handler.buildSketchCpp) {
log.Printf(" --| didSave not forwarded to clangd")
return nil, nil
}
log.Printf(" --> %s(%s)", req.Method, p.TextDocument.URI)
case *lsp.ReferenceParams: // "textDocument/references":
log.Printf("--X " + req.Method)
return nil, nil
inoURI = p.TextDocument.URI
_, err = handler.ino2cppTextDocumentPositionParams(&p.TextDocumentPositionParams)
case *lsp.DocumentOnTypeFormattingParams: // "textDocument/onTypeFormatting":
log.Printf("--X " + req.Method)
return nil, nil
inoURI = p.TextDocument.URI
err = handler.ino2cppDocumentOnTypeFormattingParams(p)
case *lsp.RenameParams: // "textDocument/rename":
log.Printf("--X " + req.Method)
return nil, nil
inoURI = p.TextDocument.URI
err = handler.ino2cppRenameParams(p)
case *lsp.DidChangeWatchedFilesParams: // "workspace/didChangeWatchedFiles":
log.Printf("--X " + req.Method)
return nil, nil
err = handler.ino2cppDidChangeWatchedFilesParams(p)
case *lsp.ExecuteCommandParams: // "workspace/executeCommand":
log.Printf("--X " + req.Method)
return nil, nil
err = handler.ino2cppExecuteCommand(p)
}
if err != nil {
log.Printf(" --E %s", err)
return nil, err
}
var result interface{}
if req.Notif {
err = handler.ClangdConn.Notify(ctx, req.Method, params)
// log.Println(" sent", req.Method, "notification to clangd")
} else {
ctx, cancel := context.WithTimeout(ctx, 800*time.Millisecond)
defer cancel()
result, err = lsp.SendRequest(ctx, handler.ClangdConn, req.Method, params)
// log.Println(" sent", req.Method, "request id", req.ID, " to clangd")
}
if err == nil && handler.buildSketchSymbolsLoad {
handler.buildSketchSymbolsLoad = false
log.Println("--! Resfreshing document symbols")
err = handler.refreshCppDocumentSymbols()
}
if err == nil && handler.buildSketchSymbolsCheck {
handler.buildSketchSymbolsCheck = false
log.Println("--! Resfreshing document symbols")
err = handler.checkCppDocumentSymbols()
}
if err != nil {
// Exit the process and trigger a restart by the client in case of a severe error
if err.Error() == "context deadline exceeded" {
log.Println("Timeout exceeded while waiting for a reply from clangd.")
handler.exit()
}
if strings.Contains(err.Error(), "non-added document") || strings.Contains(err.Error(), "non-added file") {
log.Println("The clangd process has lost track of the open document.")
handler.exit()
}
}
// Transform and return the result
if result != nil {
result = handler.transformClangdResult(req.Method, inoURI, cppURI, result)
}
return result, err
}
func (handler *InoHandler) exit() {
log.Println("Please restart the language server.")
handler.StopClangd()
os.Exit(1)
}
func (handler *InoHandler) initializeWorkbench(params *lsp.InitializeParams) error {
currCppTextVersion := 0
if params != nil {
log.Printf("--> initialize(%s)\n", params.RootURI)
handler.lspInitializeParams = params
handler.sketchRoot = params.RootURI.AsPath()
handler.sketchName = handler.sketchRoot.Base()
} else {
currCppTextVersion = handler.sketchMapper.CppText.Version
log.Printf("--> RE-initialize()\n")
}
if buildPath, err := handler.generateBuildEnvironment(); err == nil {
handler.buildPath = buildPath
handler.buildSketchRoot = buildPath.Join("sketch")
} else {
return err
}
handler.buildSketchCpp = handler.buildSketchRoot.Join(handler.sketchName + ".ino.cpp")
handler.buildSketchCppVersion = 1
handler.lspInitializeParams.RootPath = handler.buildSketchRoot.String()
handler.lspInitializeParams.RootURI = lsp.NewDocumentURIFromPath(handler.buildSketchRoot)
if cppContent, err := handler.buildSketchCpp.ReadFile(); err == nil {
handler.sketchMapper = sourcemapper.CreateInoMapper(cppContent)
handler.sketchMapper.CppText.Version = currCppTextVersion + 1
} else {
return errors.WithMessage(err, "reading generated cpp file from sketch")
}
if params == nil {
// If we are restarting re-synchronize clangd
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
defer cancel()
cppURI := lsp.NewDocumentURIFromPath(handler.buildSketchCpp)
cppTextDocumentIdentifier := lsp.TextDocumentIdentifier{URI: cppURI}
syncEvent := &lsp.DidChangeTextDocumentParams{
TextDocument: lsp.VersionedTextDocumentIdentifier{
TextDocumentIdentifier: cppTextDocumentIdentifier,
Version: handler.sketchMapper.CppText.Version,
},
ContentChanges: []lsp.TextDocumentContentChangeEvent{
{Text: handler.sketchMapper.CppText.Text}, // Full text change
},
}
if err := handler.ClangdConn.Notify(ctx, "textDocument/didChange", syncEvent); err != nil {
log.Println(" error reinitilizing clangd:", err)
return err
}
} else {
// Otherwise start clangd!
clangdStdout, clangdStdin, clangdStderr := startClangd(handler.buildPath, handler.buildSketchCpp)
clangdStdio := streams.NewReadWriteCloser(clangdStdin, clangdStdout)
if enableLogging {
clangdStdio = streams.LogReadWriteCloserAs(clangdStdio, "inols-clangd.log")
go io.Copy(streams.OpenLogFileAs("inols-clangd-err.log"), clangdStderr)
} else {
go io.Copy(os.Stderr, clangdStderr)
}
clangdStream := jsonrpc2.NewBufferedStream(clangdStdio, jsonrpc2.VSCodeObjectCodec{})
clangdHandler := jsonrpc2.AsyncHandler(jsonrpc2.HandlerWithError(handler.FromClangd))
handler.ClangdConn = jsonrpc2.NewConn(context.Background(), clangdStream, clangdHandler)
}
return nil
}
func (handler *InoHandler) refreshCppDocumentSymbols() error {
// Query source code symbols
cppURI := lsp.NewDocumentURIFromPath(handler.buildSketchCpp)
log.Printf(" --> documentSymbol(%s)", cppURI)
result, err := lsp.SendRequest(context.Background(), handler.ClangdConn, "textDocument/documentSymbol", &lsp.DocumentSymbolParams{
TextDocument: lsp.TextDocumentIdentifier{URI: cppURI},
})
if err != nil {
return errors.WithMessage(err, "quering source code symbols")
}
result = handler.transformClangdResult("textDocument/documentSymbol", cppURI, "", result)
if symbols, ok := result.([]lsp.DocumentSymbol); !ok {
return errors.WithMessage(err, "quering source code symbols (2)")
} else {
// Filter non-functions symbols
i := 0
for _, symbol := range symbols {
if symbol.Kind != lsp.SKFunction {
continue
}
symbols[i] = symbol
i++
}
symbols = symbols[:i]
for _, symbol := range symbols {
log.Printf(" symbol: %s %s", symbol.Kind, symbol.Name)
}
handler.buildSketchSymbols = symbols
}
return nil
}
func (handler *InoHandler) checkCppDocumentSymbols() error {
oldSymbols := handler.buildSketchSymbols
if err := handler.refreshCppDocumentSymbols(); err != nil {
return err
}
if len(oldSymbols) != len(handler.buildSketchSymbols) {
log.Println("--! new symbols detected, triggering sketch rebuild!")
handler.scheduleRebuildEnvironment()
return nil
}
for i, old := range oldSymbols {
if newName := handler.buildSketchSymbols[i].Name; old.Name != newName {
log.Printf("--! symbols changed, triggering sketch rebuild: '%s' -> '%s'", old.Name, newName)
handler.scheduleRebuildEnvironment()
return nil
}
}
return nil
}
func startClangd(compileCommandsDir, sketchCpp *paths.Path) (io.WriteCloser, io.ReadCloser, io.ReadCloser) {
// Open compile_commands.json and find the main cross-compiler executable
compileCommands, err := builder.LoadCompilationDatabase(compileCommandsDir.Join("compile_commands.json"))
if err != nil {
panic("could not find compile_commands.json")
}
compilers := map[string]bool{}
for _, cmd := range compileCommands.Contents {
if len(cmd.Arguments) == 0 {
panic("invalid empty argument field in compile_commands.json")
}
compilers[cmd.Arguments[0]] = true
}
if len(compilers) == 0 {
panic("main compiler not found")
}
// Start clangd
args := []string{
globalClangdPath,
"-log=verbose",
fmt.Sprintf(`--compile-commands-dir=%s`, compileCommandsDir),
}
for compiler := range compilers {
args = append(args, fmt.Sprintf("-query-driver=%s", compiler))
}
if enableLogging {
log.Println(" Starting clangd:", strings.Join(args, " "))
}
if clangdCmd, err := executils.NewProcess(args...); err != nil {
panic("starting clangd: " + err.Error())
} else if clangdIn, err := clangdCmd.StdinPipe(); err != nil {
panic("getting clangd stdin: " + err.Error())
} else if clangdOut, err := clangdCmd.StdoutPipe(); err != nil {
panic("getting clangd stdout: " + err.Error())
} else if clangdErr, err := clangdCmd.StderrPipe(); err != nil {
panic("getting clangd stderr: " + err.Error())
} else if err := clangdCmd.Start(); err != nil {
panic("running clangd: " + err.Error())
} else {
return clangdIn, clangdOut, clangdErr
}
}
func (handler *InoHandler) didOpen(inoDidOpen *lsp.DidOpenTextDocumentParams) (*lsp.DidOpenTextDocumentParams, error) {
// Add the TextDocumentItem in the tracked files list
inoItem := inoDidOpen.TextDocument
handler.docs[inoItem.URI] = &inoItem
// If we are tracking a .ino...
if inoItem.URI.Ext() == ".ino" {
handler.sketchTrackedFilesCount++
log.Printf(" increasing .ino tracked files count: %d", handler.sketchTrackedFilesCount)
// notify clang that sketchCpp has been opened only once
if handler.sketchTrackedFilesCount != 1 {
return nil, nil
}
// trigger a documentSymbol load
handler.buildSketchSymbolsLoad = true
}
cppItem, err := handler.ino2cppTextDocumentItem(inoItem)
return &lsp.DidOpenTextDocumentParams{
TextDocument: cppItem,
}, err
}
func (handler *InoHandler) didClose(inoDidClose *lsp.DidCloseTextDocumentParams) (*lsp.DidCloseTextDocumentParams, error) {
inoIdentifier := inoDidClose.TextDocument
if _, exist := handler.docs[inoIdentifier.URI]; exist {
delete(handler.docs, inoIdentifier.URI)
} else {
log.Printf(" didClose of untracked document: %s", inoIdentifier.URI)
return nil, unknownURI(inoIdentifier.URI)
}
// If we are tracking a .ino...
if inoIdentifier.URI.Ext() == ".ino" {
handler.sketchTrackedFilesCount--
log.Printf(" decreasing .ino tracked files count: %d", handler.sketchTrackedFilesCount)
// notify clang that sketchCpp has been close only once all .ino are closed
if handler.sketchTrackedFilesCount != 0 {
return nil, nil
}
}
cppIdentifier, err := handler.ino2cppTextDocumentIdentifier(inoIdentifier)
return &lsp.DidCloseTextDocumentParams{
TextDocument: cppIdentifier,
}, err
}
func (handler *InoHandler) ino2cppTextDocumentItem(inoItem lsp.TextDocumentItem) (cppItem lsp.TextDocumentItem, err error) {
cppURI, err := handler.ino2cppDocumentURI(inoItem.URI)
if err != nil {
return cppItem, err
}
cppItem.URI = cppURI
if cppURI.AsPath().EquivalentTo(handler.buildSketchCpp) {
cppItem.LanguageID = "cpp"
cppItem.Text = handler.sketchMapper.CppText.Text
cppItem.Version = handler.sketchMapper.CppText.Version
} else {
cppItem.Text = handler.docs[inoItem.URI].Text
cppItem.Version = handler.docs[inoItem.URI].Version
}
return cppItem, nil
}
func (handler *InoHandler) didChange(ctx context.Context, req *lsp.DidChangeTextDocumentParams) (*lsp.DidChangeTextDocumentParams, error) {
doc := req.TextDocument
trackedDoc, ok := handler.docs[doc.URI]
if !ok {
return nil, unknownURI(doc.URI)
}
textutils.ApplyLSPTextDocumentContentChangeEvent(trackedDoc, req.ContentChanges, doc.Version)
// If changes are applied to a .ino file we increment the global .ino.cpp versioning
// for each increment of the single .ino file.
if doc.URI.Ext() == ".ino" {
cppChanges := []lsp.TextDocumentContentChangeEvent{}
for _, inoChange := range req.ContentChanges {
dirty := handler.sketchMapper.ApplyTextChange(doc.URI, inoChange)
if dirty {
// TODO: Detect changes in critical lines (for example function definitions)
// and trigger arduino-preprocessing + clangd restart.
log.Println("--! DIRTY CHANGE, force sketch rebuild!")
handler.scheduleRebuildEnvironment()
}
// log.Println("New version:----------")
// log.Println(handler.sketchMapper.CppText.Text)
// log.Println("----------------------")
cppRange, ok := handler.sketchMapper.InoToCppLSPRangeOk(doc.URI, *inoChange.Range)
if !ok {
return nil, errors.Errorf("invalid change range %s:%s", doc.URI, *inoChange.Range)
}
cppChange := lsp.TextDocumentContentChangeEvent{
Range: &cppRange,
RangeLength: inoChange.RangeLength,
Text: inoChange.Text,
}
cppChanges = append(cppChanges, cppChange)
}
// build a cpp equivalent didChange request
cppReq := &lsp.DidChangeTextDocumentParams{
ContentChanges: cppChanges,
TextDocument: lsp.VersionedTextDocumentIdentifier{
TextDocumentIdentifier: lsp.TextDocumentIdentifier{
URI: lsp.NewDocumentURIFromPath(handler.buildSketchCpp),
},
Version: handler.sketchMapper.CppText.Version,
},
}
return cppReq, nil
}
// If changes are applied to other files pass them by converting just the URI
cppDoc, err := handler.ino2cppVersionedTextDocumentIdentifier(req.TextDocument)
if err != nil {
return nil, err
}
cppReq := &lsp.DidChangeTextDocumentParams{
TextDocument: cppDoc,
ContentChanges: req.ContentChanges,
}
return cppReq, err
}
func (handler *InoHandler) handleError(ctx context.Context, err error) error {
errorStr := err.Error()
var message string
if strings.Contains(errorStr, "#error") {
exp, regexpErr := regexp.Compile("#error \"(.*)\"")
if regexpErr != nil {
panic(regexpErr)
}
submatch := exp.FindStringSubmatch(errorStr)
message = submatch[1]
} else if strings.Contains(errorStr, "platform not installed") || strings.Contains(errorStr, "no FQBN provided") {
if len(handler.config.SelectedBoard.Name) > 0 {
board := handler.config.SelectedBoard.Name
message = "Editor support may be inaccurate because the core for the board `" + board + "` is not installed."
message += " Use the Boards Manager to install it."
} else {
// This case happens most often when the app is started for the first time and no
// board is selected yet. Don't bother the user with an error then.
return err
}
} else if strings.Contains(errorStr, "No such file or directory") {
exp, regexpErr := regexp.Compile("([\\w\\.\\-]+): No such file or directory")
if regexpErr != nil {
panic(regexpErr)
}
submatch := exp.FindStringSubmatch(errorStr)
message = "Editor support may be inaccurate because the header `" + submatch[1] + "` was not found."
message += " If it is part of a library, use the Library Manager to install it."
} else {
message = "Could not start editor support.\n" + errorStr
}
go handler.showMessage(ctx, lsp.MTError, message)
return errors.New(message)
}
func (handler *InoHandler) ino2cppVersionedTextDocumentIdentifier(doc lsp.VersionedTextDocumentIdentifier) (lsp.VersionedTextDocumentIdentifier, error) {
cppURI, err := handler.ino2cppDocumentURI(doc.URI)
res := doc
res.URI = cppURI
return res, err
}
func (handler *InoHandler) ino2cppTextDocumentIdentifier(doc lsp.TextDocumentIdentifier) (lsp.TextDocumentIdentifier, error) {
cppURI, err := handler.ino2cppDocumentURI(doc.URI)
res := doc
res.URI = cppURI
return res, err
}
func (handler *InoHandler) ino2cppDocumentURI(inoURI lsp.DocumentURI) (lsp.DocumentURI, error) {
// Sketchbook/Sketch/Sketch.ino -> build-path/sketch/Sketch.ino.cpp
// Sketchbook/Sketch/AnotherTab.ino -> build-path/sketch/Sketch.ino.cpp (different section from above)
// Sketchbook/Sketch/AnotherFile.cpp -> build-path/sketch/AnotherFile.cpp (1:1)
// another/path/source.cpp -> unchanged
// Convert sketch path to build path
inoPath := inoURI.AsPath()
if inoPath.Ext() == ".ino" {
return lsp.NewDocumentURIFromPath(handler.buildSketchCpp), nil
}
inside, err := inoPath.IsInsideDir(handler.sketchRoot)
if err != nil {
log.Printf(" could not determine if '%s' is inside '%s'", inoPath, handler.sketchRoot)
return "", unknownURI(inoURI)
}
if !inside {
log.Printf(" passing doc identifier to '%s' as-is", inoPath)
return inoURI, nil
}
rel, err := handler.sketchRoot.RelTo(inoPath)
if err == nil {
cppPath := handler.buildSketchRoot.JoinPath(rel)
log.Printf(" URI: '%s' -> '%s'", inoPath, cppPath)
return lsp.NewDocumentURIFromPath(cppPath), nil
}
log.Printf(" could not determine rel-path of '%s' in '%s': %s", inoPath, handler.sketchRoot, err)
return "", err
}
func (handler *InoHandler) cpp2inoDocumentURI(cppURI lsp.DocumentURI, cppRange lsp.Range) (lsp.DocumentURI, lsp.Range, error) {
// Sketchbook/Sketch/Sketch.ino <- build-path/sketch/Sketch.ino.cpp
// Sketchbook/Sketch/AnotherTab.ino <- build-path/sketch/Sketch.ino.cpp (different section from above)
// Sketchbook/Sketch/AnotherFile.cpp <- build-path/sketch/AnotherFile.cpp (1:1)
// another/path/source.cpp <- unchanged
// Convert build path to sketch path
cppPath := cppURI.AsPath()
if cppPath.EquivalentTo(handler.buildSketchCpp) {
inoPath, inoRange, err := handler.sketchMapper.CppToInoRangeOk(cppRange)
if err == nil {
log.Printf(" URI: converted %s to %s:%s", cppRange, inoPath, inoRange)
} else if _, ok := err.(sourcemapper.AdjustedRangeErr); ok {
log.Printf(" URI: converted %s to %s:%s (END LINE ADJUSTED)", cppRange, inoPath, inoRange)
err = nil
} else {
log.Printf(" URI: ERROR: %s", err)
handler.sketchMapper.DebugLogAll()
}
return lsp.NewDocumentURI(inoPath), inoRange, err
}
inside, err := cppPath.IsInsideDir(handler.buildSketchRoot)
if err != nil {
log.Printf(" could not determine if '%s' is inside '%s'", cppPath, handler.buildSketchRoot)
return "", lsp.Range{}, err
}
if !inside {
log.Printf(" keep doc identifier to '%s' as-is", cppPath)
return cppURI, cppRange, nil
}
rel, err := handler.buildSketchRoot.RelTo(cppPath)
if err == nil {
inoPath := handler.sketchRoot.JoinPath(rel)
log.Printf(" URI: '%s' -> '%s'", cppPath, inoPath)
return lsp.NewDocumentURIFromPath(inoPath), cppRange, nil
}
log.Printf(" could not determine rel-path of '%s' in '%s': %s", cppPath, handler.buildSketchRoot, err)
return "", lsp.Range{}, err
}
func (handler *InoHandler) ino2cppTextDocumentPositionParams(inoParams *lsp.TextDocumentPositionParams) (*lsp.TextDocumentPositionParams, error) {
cppDoc, err := handler.ino2cppTextDocumentIdentifier(inoParams.TextDocument)
if err != nil {
return nil, err
}
cppPosition := inoParams.Position
inoURI := inoParams.TextDocument.URI
if inoURI.Ext() == ".ino" {
if cppLine, ok := handler.sketchMapper.InoToCppLineOk(inoURI, inoParams.Position.Line); ok {
cppPosition.Line = cppLine
} else {
log.Printf(" invalid line requested: %s:%d", inoURI, inoParams.Position.Line)
return nil, unknownURI(inoURI)
}
}
return &lsp.TextDocumentPositionParams{
TextDocument: cppDoc,
Position: cppPosition,
}, nil
}
func (handler *InoHandler) ino2cppRange(inoURI lsp.DocumentURI, inoRange lsp.Range) (lsp.DocumentURI, lsp.Range, error) {
cppURI, err := handler.ino2cppDocumentURI(inoURI)
if err != nil {
return "", lsp.Range{}, err
}
if cppURI.AsPath().EquivalentTo(handler.buildSketchCpp) {
cppRange := handler.sketchMapper.InoToCppLSPRange(inoURI, inoRange)
return cppURI, cppRange, nil
}
return cppURI, inoRange, nil
}
func (handler *InoHandler) ino2cppDocumentRangeFormattingParams(inoParams *lsp.DocumentRangeFormattingParams) (*lsp.DocumentRangeFormattingParams, error) {
cppTextDocument, err := handler.ino2cppTextDocumentIdentifier(inoParams.TextDocument)
if err != nil {
return nil, err
}
_, cppRange, err := handler.ino2cppRange(inoParams.TextDocument.URI, inoParams.Range)
return &lsp.DocumentRangeFormattingParams{
TextDocument: cppTextDocument,
Range: cppRange,
Options: inoParams.Options,
}, err
}
func (handler *InoHandler) ino2cppDocumentOnTypeFormattingParams(params *lsp.DocumentOnTypeFormattingParams) error {
panic("not implemented")
// handler.sketchToBuildPathTextDocumentIdentifier(¶ms.TextDocument)
// if data, ok := handler.data[params.TextDocument.URI]; ok {
// params.Position.Line = data.sourceMap.InoToCppLine(data.sourceURI, params.Position.Line)
// return nil
// }
return unknownURI(params.TextDocument.URI)
}
func (handler *InoHandler) ino2cppRenameParams(params *lsp.RenameParams) error {
panic("not implemented")
// handler.sketchToBuildPathTextDocumentIdentifier(¶ms.TextDocument)
// if data, ok := handler.data[params.TextDocument.URI]; ok {
// params.Position.Line = data.sourceMap.InoToCppLine(data.sourceURI, params.Position.Line)
// return nil
// }
return unknownURI(params.TextDocument.URI)
}
func (handler *InoHandler) ino2cppDidChangeWatchedFilesParams(params *lsp.DidChangeWatchedFilesParams) error {
panic("not implemented")
// for index := range params.Changes {
// fileEvent := ¶ms.Changes[index]
// if data, ok := handler.data[fileEvent.URI]; ok {
// fileEvent.URI = data.targetURI
// }
// }
return nil
}
func (handler *InoHandler) ino2cppExecuteCommand(executeCommand *lsp.ExecuteCommandParams) error {
panic("not implemented")
// if len(executeCommand.Arguments) == 1 {
// arg := handler.parseCommandArgument(executeCommand.Arguments[0])
// if workspaceEdit, ok := arg.(*lsp.WorkspaceEdit); ok {
// executeCommand.Arguments[0] = handler.ino2cppWorkspaceEdit(workspaceEdit)
// }
// }
return nil
}
func (handler *InoHandler) ino2cppWorkspaceEdit(origEdit *lsp.WorkspaceEdit) *lsp.WorkspaceEdit {
panic("not implemented")
newEdit := lsp.WorkspaceEdit{Changes: make(map[lsp.DocumentURI][]lsp.TextEdit)}
// for uri, edit := range origEdit.Changes {
// if data, ok := handler.data[lsp.DocumentURI(uri)]; ok {
// newValue := make([]lsp.TextEdit, len(edit))
// for index := range edit {
// newValue[index] = lsp.TextEdit{
// NewText: edit[index].NewText,
// Range: data.sourceMap.InoToCppLSPRange(data.sourceURI, edit[index].Range),
// }
// }
// newEdit.Changes[string(data.targetURI)] = newValue
// } else {
// newEdit.Changes[uri] = edit
// }
// }
return &newEdit
}
func (handler *InoHandler) transformClangdResult(method string, inoURI, cppURI lsp.DocumentURI, result interface{}) interface{} {
cppToIno := inoURI != "" && inoURI.AsPath().EquivalentTo(handler.buildSketchCpp)
switch r := result.(type) {
case *lsp.Hover:
// method "textDocument/hover"
if len(r.Contents.Value) == 0 {
return nil
}
if cppToIno {
_, *r.Range = handler.sketchMapper.CppToInoRange(*r.Range)
}
log.Printf("<-- hover(%s)", strconv.Quote(r.Contents.Value))
return r
case *lsp.CompletionList:
// method "textDocument/completion"
newItems := make([]lsp.CompletionItem, 0)
for _, item := range r.Items {
if !strings.HasPrefix(item.InsertText, "_") {
if cppToIno && item.TextEdit != nil {
_, item.TextEdit.Range = handler.sketchMapper.CppToInoRange(item.TextEdit.Range)
}
newItems = append(newItems, item)
}
}
r.Items = newItems
log.Printf("<-- completion(%d items)", len(r.Items))
return r
case *lsp.DocumentSymbolArrayOrSymbolInformationArray:
// method "textDocument/documentSymbol"
if r.DocumentSymbolArray != nil {
// Treat the input as []DocumentSymbol
return handler.cpp2inoDocumentSymbols(*r.DocumentSymbolArray, inoURI)
} else if r.SymbolInformationArray != nil {
// Treat the input as []SymbolInformation
return handler.cpp2inoSymbolInformation(*r.SymbolInformationArray)
} else {
// Treat the input as null
}
case *[]lsp.CommandOrCodeAction:
// method "textDocument/codeAction"
log.Printf(" <-- codeAction(%d elements)", len(*r))
for i, item := range *r {
if item.Command != nil {
log.Printf(" > Command: %s", item.Command.Title)
}
if item.CodeAction != nil {
log.Printf(" > CodeAction: %s", item.CodeAction.Title)
}
(*r)[i] = lsp.CommandOrCodeAction{
Command: handler.Cpp2InoCommand(item.Command),
CodeAction: handler.cpp2inoCodeAction(item.CodeAction, inoURI),
}
}
log.Printf("<-- codeAction(%d elements)", len(*r))
case *[]lsp.TextEdit:
// Method: "textDocument/rangeFormatting"
// Method: "textDocument/onTypeFormatting"
// Method: "textDocument/formatting"
log.Printf(" <-- %s %s textEdit(%d elements)", method, cppURI, len(*r))
for _, edit := range *r {
log.Printf(" > %s -> %s", edit.Range, strconv.Quote(edit.NewText))
}
sketchEdits, err := handler.cpp2inoTextEdits(cppURI, *r)
if err != nil {
log.Printf("ERROR converting textEdits: %s", err)
return nil
}
inoEdits, ok := sketchEdits[inoURI]
if !ok {
inoEdits = []lsp.TextEdit{}
}
log.Printf("<-- %s %s textEdit(%d elements)", method, inoURI, len(inoEdits))
for _, edit := range inoEdits {
log.Printf(" > %s -> %s", edit.Range, strconv.Quote(edit.NewText))
}
return &inoEdits
case *[]lsp.Location:
// Method: "textDocument/definition"
// Method: "textDocument/typeDefinition"
// Method: "textDocument/implementation"
// Method: "textDocument/references"