project

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 Go to latest Published: Oct 24, 2025 License: Apache-2.0 Imports: 31 Imported by: 0

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Constants

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Variables

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Functions

This section is empty.

Types

type APISnapshotRequest 

type APISnapshotRequest struct {
	OpenProjects   *collections.Set[string]
	CloseProjects  *collections.Set[tspath.Path]
	UpdateProjects *collections.Set[tspath.Path]
}

type ATAStateChange 

type ATAStateChange struct {
	ProjectID tspath.Path
	// TypingsInfo is the new typings info for the project.
	TypingsInfo *ata.TypingsInfo
	// TypingsFiles is the new list of typing files for the project.
	TypingsFiles []string
	// TypingsFilesToWatch is the new list of typing files to watch for changes.
	TypingsFilesToWatch []string
	Logs                *logging.LogTree
}

ATAStateChange represents a change to a project's ATA state.

type Client 

type Client interface {
	WatchFiles(ctx context.Context, id WatcherID, watchers []*lsproto.FileSystemWatcher) error
	UnwatchFiles(ctx context.Context, id WatcherID) error
	RefreshDiagnostics(ctx context.Context) error
}

type Config 

type Config struct {
	// contains filtered or unexported fields
}

type ConfigFileRegistry 

type ConfigFileRegistry struct {
	// contains filtered or unexported fields
}

func (*ConfigFileRegistry) GetAncestorConfigFileName 

func (c *ConfigFileRegistry) GetAncestorConfigFileName(path tspath.Path, higherThanConfig string) string

func (*ConfigFileRegistry) GetConfig 

func (c *ConfigFileRegistry) GetConfig(path tspath.Path) *tsoptions.ParsedCommandLine

func (*ConfigFileRegistry) GetConfigFileName 

func (c *ConfigFileRegistry) GetConfigFileName(path tspath.Path) string

type CreateProgramResult 

type CreateProgramResult struct {
	Program     *compiler.Program
	UpdateKind  ProgramUpdateKind
	CheckerPool *checkerPool
}

type FileChange 

type FileChange struct {
	Kind         FileChangeKind
	URI          lsproto.DocumentUri
	Hash         xxh3.Uint128                                              // Only set for Close
	Version      int32                                                     // Only set for Open/Change
	Content      string                                                    // Only set for Open
	LanguageKind lsproto.LanguageKind                                      // Only set for Open
	Changes      []lsproto.TextDocumentContentChangePartialOrWholeDocument // Only set for Change
}

type FileChangeKind 

type FileChangeKind int
const (
	FileChangeKindOpen FileChangeKind = iota
	FileChangeKindClose
	FileChangeKindChange
	FileChangeKindSave
	FileChangeKindWatchCreate
	FileChangeKindWatchChange
	FileChangeKindWatchDelete
)

func (FileChangeKind) IsWatchKind 

func (k FileChangeKind) IsWatchKind() bool

type FileChangeSummary 

type FileChangeSummary struct {
	// Only one file can be opened at a time per request
	Opened lsproto.DocumentUri
	// Values are the content hashes of the overlays before closing.
	Closed  map[lsproto.DocumentUri]xxh3.Uint128
	Changed collections.Set[lsproto.DocumentUri]
	// Only set when file watching is enabled
	Created collections.Set[lsproto.DocumentUri]
	// Only set when file watching is enabled
	Deleted collections.Set[lsproto.DocumentUri]

	// IncludesWatchChangeOutsideNodeModules is true if the summary includes a create, change, or delete watch
	// event of a file outside a node_modules directory.
	IncludesWatchChangeOutsideNodeModules bool
}

func (FileChangeSummary) HasExcessiveNonCreateWatchEvents 

func (f FileChangeSummary) HasExcessiveNonCreateWatchEvents() bool

func (FileChangeSummary) HasExcessiveWatchEvents 

func (f FileChangeSummary) HasExcessiveWatchEvents() bool

func (FileChangeSummary) IsEmpty 

func (f FileChangeSummary) IsEmpty() bool

type FileContent 

type FileContent interface {
	Content() string
	Hash() xxh3.Uint128
}

type FileHandle 

type FileHandle interface {
	FileContent
	FileName() string
	Version() int32
	MatchesDiskText() bool
	IsOverlay() bool
	LSPLineMap() *ls.LSPLineMap
	ECMALineInfo() *sourcemap.ECMALineInfo
	Kind() core.ScriptKind
}

type FileSource 

type FileSource interface {
	FS() vfs.FS
	GetFile(fileName string) FileHandle
}

type Kind 

type Kind int
const (
	KindInferred Kind = iota
	KindConfigured
)

func (Kind) String 

func (i Kind) String() string

type ParseCache 

type ParseCache struct {
	Options ParseCacheOptions
	// contains filtered or unexported fields
}

func (*ParseCache) Acquire 

func (c *ParseCache) Acquire(
	fh FileContent,
	opts ast.SourceFileParseOptions,
	scriptKind core.ScriptKind,
) *ast.SourceFile

func (*ParseCache) Deref 

func (c *ParseCache) Deref(file *ast.SourceFile)

func (*ParseCache) Ref 

func (c *ParseCache) Ref(file *ast.SourceFile)

type ParseCacheOptions 

type ParseCacheOptions struct {
	// DisableDeletion prevents entries from being removed from the cache.
	// Used for testing.
	DisableDeletion bool
}

type PendingReload 

type PendingReload int
const (
	PendingReloadNone PendingReload = iota
	PendingReloadFileNames
	PendingReloadFull
)

type ProgramUpdateKind 

type ProgramUpdateKind int
const (
	ProgramUpdateKindNone ProgramUpdateKind = iota
	ProgramUpdateKindCloned
	ProgramUpdateKindSameFileNames
	ProgramUpdateKindNewFiles
)

type Project 

type Project struct {
	Kind Kind

	CommandLine *tsoptions.ParsedCommandLine

	Program *compiler.Program
	// The kind of update that was performed on the program last time it was updated.
	ProgramUpdateKind ProgramUpdateKind
	// The ID of the snapshot that created the program stored in this project.
	ProgramLastUpdate uint64
	// contains filtered or unexported fields
}

Project represents a TypeScript project. If changing struct fields, also update the Clone method.

func NewConfiguredProject 

func NewConfiguredProject(
	configFileName string,
	configFilePath tspath.Path,
	builder *projectCollectionBuilder,
	logger *logging.LogTree,
) *Project

func NewInferredProject 

func NewInferredProject(
	currentDirectory string,
	compilerOptions *core.CompilerOptions,
	rootFileNames []string,
	builder *projectCollectionBuilder,
	logger *logging.LogTree,
) *Project

func NewProject 

func NewProject(
	configFileName string,
	kind Kind,
	currentDirectory string,
	builder *projectCollectionBuilder,
	logger *logging.LogTree,
) *Project

func (*Project) Clone 

func (p *Project) Clone() *Project

func (*Project) CloneWatchers 

func (p *Project) CloneWatchers(workspaceDir string, libDir string) (programFilesWatch *WatchedFiles[patternsAndIgnored], failedLookupsWatch *WatchedFiles[map[tspath.Path]string], affectingLocationsWatch *WatchedFiles[map[tspath.Path]string])

func (*Project) ComputeTypingsInfo 

func (p *Project) ComputeTypingsInfo() ata.TypingsInfo

func (*Project) ConfigFileName 

func (p *Project) ConfigFileName() string

ConfigFileName panics if Kind() is not KindConfigured.

func (*Project) ConfigFilePath 

func (p *Project) ConfigFilePath() tspath.Path

ConfigFilePath panics if Kind() is not KindConfigured.

func (*Project) CreateProgram 

func (p *Project) CreateProgram() CreateProgramResult

func (*Project) GetProgram 

func (p *Project) GetProgram() *compiler.Program

func (*Project) GetTypeAcquisition 

func (p *Project) GetTypeAcquisition() *core.TypeAcquisition

GetTypeAcquisition returns the type acquisition settings for this project.

func (*Project) GetUnresolvedImports 

func (p *Project) GetUnresolvedImports() *collections.Set[string]

GetUnresolvedImports extracts unresolved imports from this project's program.

func (*Project) IsSourceFromProjectReference 

func (p *Project) IsSourceFromProjectReference(path tspath.Path) bool

func (*Project) Name 

func (p *Project) Name() string

func (*Project) ShouldTriggerATA 

func (p *Project) ShouldTriggerATA(snapshotID uint64) bool

ShouldTriggerATA determines if ATA should be triggered for this project.

type ProjectCollection 

type ProjectCollection struct {
	// contains filtered or unexported fields
}

func (*ProjectCollection) ConfiguredProject 

func (c *ProjectCollection) ConfiguredProject(path tspath.Path) *Project

func (*ProjectCollection) ConfiguredProjects 

func (c *ProjectCollection) ConfiguredProjects() []*Project

ConfiguredProjects returns all configured projects in a stable order.

func (*ProjectCollection) GetDefaultProject 

func (c *ProjectCollection) GetDefaultProject(fileName string, path tspath.Path) *Project

!!! result could be cached

func (*ProjectCollection) GetProjectByPath 

func (c *ProjectCollection) GetProjectByPath(projectPath tspath.Path) *Project

func (*ProjectCollection) InferredProject 

func (c *ProjectCollection) InferredProject() *Project

func (*ProjectCollection) Projects 

func (c *ProjectCollection) Projects() []*Project

Projects returns all projects, including the inferred project if it exists, in a stable order.

func (*ProjectCollection) ProjectsByPath 

func (c *ProjectCollection) ProjectsByPath() *collections.OrderedMap[tspath.Path, *Project]

ProjectsByPath returns an ordered map of configured projects keyed by their config file path, plus the inferred project, if it exists, with the key `inferredProjectName`.

type Session 

type Session struct {
	// contains filtered or unexported fields
}

Session manages the state of an LSP session. It receives textDocument events and requests for LanguageService objects from the LPS server and processes them into immutable snapshots as the data source for LanguageServices. When Session transitions from one snapshot to the next, it diffs them and updates file watchers and Automatic Type Acquisition (ATA) state accordingly.

func NewSession 

func NewSession(init *SessionInit) *Session

func (*Session) Close 

func (s *Session) Close()

func (*Session) Configure 

func (s *Session) Configure(userPreferences *ls.UserPreferences)

func (*Session) DidChangeCompilerOptionsForInferredProjects 

func (s *Session) DidChangeCompilerOptionsForInferredProjects(ctx context.Context, options *core.CompilerOptions)

func (*Session) DidChangeFile 

func (s *Session) DidChangeFile(ctx context.Context, uri lsproto.DocumentUri, version int32, changes []lsproto.TextDocumentContentChangePartialOrWholeDocument)

func (*Session) DidChangeWatchedFiles 

func (s *Session) DidChangeWatchedFiles(ctx context.Context, changes []*lsproto.FileEvent)

func (*Session) DidCloseFile 

func (s *Session) DidCloseFile(ctx context.Context, uri lsproto.DocumentUri)

func (*Session) DidOpenFile 

func (s *Session) DidOpenFile(ctx context.Context, uri lsproto.DocumentUri, version int32, content string, languageKind lsproto.LanguageKind)

func (*Session) DidSaveFile 

func (s *Session) DidSaveFile(ctx context.Context, uri lsproto.DocumentUri)

func (*Session) FS 

func (s *Session) FS() vfs.FS

FS implements module.ResolutionHost

func (*Session) GetCurrentDirectory 

func (s *Session) GetCurrentDirectory() string

GetCurrentDirectory implements module.ResolutionHost

func (*Session) GetLanguageService 

func (s *Session) GetLanguageService(ctx context.Context, uri lsproto.DocumentUri) (*ls.LanguageService, error)

func (*Session) InitializeWithConfig 

func (s *Session) InitializeWithConfig(userPreferences *ls.UserPreferences)

func (*Session) NewUserPreferences 

func (s *Session) NewUserPreferences() *ls.UserPreferences

Gets original UserPreferences of the session

func (*Session) NpmInstall 

func (s *Session) NpmInstall(cwd string, npmInstallArgs []string) ([]byte, error)

func (*Session) OpenProject 

func (s *Session) OpenProject(ctx context.Context, configFileName string) (*Project, error)

func (*Session) ScheduleDiagnosticsRefresh 

func (s *Session) ScheduleDiagnosticsRefresh()

func (*Session) Snapshot 

func (s *Session) Snapshot() (*Snapshot, func())

func (*Session) Trace 

func (s *Session) Trace(msg string)

Trace implements module.ResolutionHost

func (*Session) UpdateSnapshot 

func (s *Session) UpdateSnapshot(ctx context.Context, overlays map[tspath.Path]*overlay, change SnapshotChange) *Snapshot

func (*Session) UserPreferences 

func (s *Session) UserPreferences() *ls.UserPreferences

Gets current UserPreferences, always a copy

func (*Session) WaitForBackgroundTasks 

func (s *Session) WaitForBackgroundTasks()

WaitForBackgroundTasks waits for all background tasks to complete. This is intended to be used only for testing purposes.

type SessionInit 

type SessionInit struct {
	Options     *SessionOptions
	FS          vfs.FS
	Client      Client
	Logger      logging.Logger
	NpmExecutor ata.NpmExecutor
	ParseCache  *ParseCache
}

type SessionOptions 

type SessionOptions struct {
	CurrentDirectory   string
	DefaultLibraryPath string
	TypingsLocation    string
	PositionEncoding   lsproto.PositionEncodingKind
	WatchEnabled       bool
	LoggingEnabled     bool
	DebounceDelay      time.Duration
}

SessionOptions are the immutable initialization options for a session. Snapshots may reference them as a pointer since they never change.

type Snapshot 

type Snapshot struct {
	ProjectCollection  *ProjectCollection
	ConfigFileRegistry *ConfigFileRegistry
	// contains filtered or unexported fields
}

func NewSnapshot 

func NewSnapshot(
	id uint64,
	fs *snapshotFS,
	sessionOptions *SessionOptions,
	parseCache *ParseCache,
	extendedConfigCache *extendedConfigCache,
	configFileRegistry *ConfigFileRegistry,
	compilerOptionsForInferredProjects *core.CompilerOptions,
	config Config,
	toPath func(fileName string) tspath.Path,
) *Snapshot

NewSnapshot

func (*Snapshot) Clone 

func (s *Snapshot) Clone(ctx context.Context, change SnapshotChange, overlays map[tspath.Path]*overlay, session *Session) *Snapshot

func (*Snapshot) Converters 

func (s *Snapshot) Converters() *ls.Converters

func (*Snapshot) Deref 

func (s *Snapshot) Deref() bool

func (*Snapshot) FormatOptions 

func (s *Snapshot) FormatOptions() *format.FormatCodeSettings

func (*Snapshot) GetDefaultProject 

func (s *Snapshot) GetDefaultProject(uri lsproto.DocumentUri) *Project

func (*Snapshot) GetECMALineInfo 

func (s *Snapshot) GetECMALineInfo(fileName string) *sourcemap.ECMALineInfo

func (*Snapshot) GetFile 

func (s *Snapshot) GetFile(fileName string) FileHandle

func (*Snapshot) ID 

func (s *Snapshot) ID() uint64

func (*Snapshot) LSPLineMap 

func (s *Snapshot) LSPLineMap(fileName string) *ls.LSPLineMap

func (*Snapshot) ReadFile 

func (s *Snapshot) ReadFile(fileName string) (string, bool)

func (*Snapshot) Ref 

func (s *Snapshot) Ref()

func (*Snapshot) UseCaseSensitiveFileNames 

func (s *Snapshot) UseCaseSensitiveFileNames() bool

func (*Snapshot) UserPreferences 

func (s *Snapshot) UserPreferences() *ls.UserPreferences

type SnapshotChange 

type SnapshotChange struct {
	// contains filtered or unexported fields
}

type UpdateReason 

type UpdateReason int
const (
	UpdateReasonUnknown UpdateReason = iota
	UpdateReasonDidOpenFile
	UpdateReasonDidChangeCompilerOptionsForInferredProjects
	UpdateReasonRequestedLanguageServicePendingChanges
	UpdateReasonRequestedLanguageServiceProjectNotLoaded
	UpdateReasonRequestedLanguageServiceProjectDirty
)

type WatchedFiles 

type WatchedFiles[T any] struct {
	// contains filtered or unexported fields
}

func NewWatchedFiles 

func NewWatchedFiles[T any](name string, watchKind lsproto.WatchKind, computeGlobPatterns func(input T) patternsAndIgnored) *WatchedFiles[T]

func (*WatchedFiles[T]) Clone 

func (w *WatchedFiles[T]) Clone(input T) *WatchedFiles[T]

func (*WatchedFiles[T]) ID 

func (w *WatchedFiles[T]) ID() WatcherID

func (*WatchedFiles[T]) Name 

func (w *WatchedFiles[T]) Name() string

func (*WatchedFiles[T]) WatchKind 

func (w *WatchedFiles[T]) WatchKind() lsproto.WatchKind

func (*WatchedFiles[T]) Watchers 

func (w *WatchedFiles[T]) Watchers() (WatcherID, []*lsproto.FileSystemWatcher, map[string]struct{})

type WatcherID 

type WatcherID string

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