1 files changed, 217 insertions, 0 deletions
diff --git a/tools/vscode/packages/server/src/plugins/interfaces.ts b/tools/vscode/packages/server/src/plugins/interfaces.ts
new file mode 100644
index 000000000..31aafdc3e
--- /dev/null
+++ b/tools/vscode/packages/server/src/plugins/interfaces.ts
@@ -0,0 +1,217 @@
+import {
+    CompletionContext,
+    FileChangeType,
+    LinkedEditingRanges,
+    SemanticTokens,
+    SignatureHelpContext,
+    TextDocumentContentChangeEvent
+} from 'vscode-languageserver';
+import {
+    CodeAction,
+    CodeActionContext,
+    Color,
+    ColorInformation,
+    ColorPresentation,
+    CompletionItem,
+    CompletionList,
+    DefinitionLink,
+    Diagnostic,
+    FormattingOptions,
+    Hover,
+    Location,
+    Position,
+    Range,
+    ReferenceContext,
+    SymbolInformation,
+    TextDocumentIdentifier,
+    TextEdit,
+    WorkspaceEdit,
+    SelectionRange,
+    SignatureHelp,
+    FoldingRange
+} from 'vscode-languageserver-types';
+import { Document } from '../core/documents';
+
+export type Resolvable<T> = T | Promise<T>;
+
+export interface AppCompletionItem<T extends TextDocumentIdentifier = any> extends CompletionItem {
+    data?: T;
+}
+
+export interface AppCompletionList<T extends TextDocumentIdentifier = any> extends CompletionList {
+    items: Array<AppCompletionItem<T>>;
+}
+
+export interface DiagnosticsProvider {
+    getDiagnostics(document: Document): Resolvable<Diagnostic[]>;
+}
+
+export interface HoverProvider {
+    doHover(document: Document, position: Position): Resolvable<Hover | null>;
+}
+
+export interface FoldingRangeProvider {
+    getFoldingRanges(document: Document): Resolvable<FoldingRange[]|null>;
+}
+
+export interface CompletionsProvider<T extends TextDocumentIdentifier = any> {
+    getCompletions(
+        document: Document,
+        position: Position,
+        completionContext?: CompletionContext
+    ): Resolvable<AppCompletionList<T> | null>;
+
+    resolveCompletion?(
+        document: Document,
+        completionItem: AppCompletionItem<T>
+    ): Resolvable<AppCompletionItem<T>>;
+}
+
+export interface FormattingProvider {
+    formatDocument(document: Document, options: FormattingOptions): Resolvable<TextEdit[]>;
+}
+
+export interface TagCompleteProvider {
+    doTagComplete(document: Document, position: Position): Resolvable<string | null>;
+}
+
+export interface DocumentColorsProvider {
+    getDocumentColors(document: Document): Resolvable<ColorInformation[]>;
+}
+
+export interface ColorPresentationsProvider {
+    getColorPresentations(
+        document: Document,
+        range: Range,
+        color: Color
+    ): Resolvable<ColorPresentation[]>;
+}
+
+export interface DocumentSymbolsProvider {
+    getDocumentSymbols(document: Document): Resolvable<SymbolInformation[]>;
+}
+
+export interface DefinitionsProvider {
+    getDefinitions(document: Document, position: Position): Resolvable<DefinitionLink[]>;
+}
+
+export interface BackwardsCompatibleDefinitionsProvider {
+    getDefinitions(
+        document: Document,
+        position: Position
+    ): Resolvable<DefinitionLink[] | Location[]>;
+}
+
+export interface CodeActionsProvider {
+    getCodeActions(
+        document: Document,
+        range: Range,
+        context: CodeActionContext
+    ): Resolvable<CodeAction[]>;
+    executeCommand?(
+        document: Document,
+        command: string,
+        args?: any[]
+    ): Resolvable<WorkspaceEdit | string | null>;
+}
+
+export interface FileRename {
+    oldUri: string;
+    newUri: string;
+}
+
+export interface UpdateImportsProvider {
+    updateImports(fileRename: FileRename): Resolvable<WorkspaceEdit | null>;
+}
+
+export interface RenameProvider {
+    rename(
+        document: Document,
+        position: Position,
+        newName: string
+    ): Resolvable<WorkspaceEdit | null>;
+    prepareRename(document: Document, position: Position): Resolvable<Range | null>;
+}
+
+export interface FindReferencesProvider {
+    findReferences(
+        document: Document,
+        position: Position,
+        context: ReferenceContext
+    ): Promise<Location[] | null>;
+}
+
+export interface SignatureHelpProvider {
+    getSignatureHelp(
+        document: Document,
+        position: Position,
+        context: SignatureHelpContext | undefined
+    ): Resolvable<SignatureHelp | null>;
+}
+
+export interface SelectionRangeProvider {
+    getSelectionRange(document: Document, position: Position): Resolvable<SelectionRange | null>;
+}
+
+export interface SemanticTokensProvider {
+    getSemanticTokens(textDocument: Document, range?: Range): Resolvable<SemanticTokens | null>;
+}
+
+export interface LinkedEditingRangesProvider {
+    getLinkedEditingRanges(
+        document: Document,
+        position: Position
+    ): Resolvable<LinkedEditingRanges | null>;
+}
+
+export interface OnWatchFileChangesPara {
+    fileName: string;
+    changeType: FileChangeType;
+}
+
+export interface OnWatchFileChanges {
+    onWatchFileChanges(onWatchFileChangesParas: OnWatchFileChangesPara[]): void;
+}
+
+export interface UpdateTsOrJsFile {
+    updateTsOrJsFile(fileName: string, changes: TextDocumentContentChangeEvent[]): void;
+}
+
+type ProviderBase = DiagnosticsProvider &
+    HoverProvider &
+    CompletionsProvider &
+    FormattingProvider &
+    FoldingRangeProvider &
+    TagCompleteProvider &
+    DocumentColorsProvider &
+    ColorPresentationsProvider &
+    DocumentSymbolsProvider &
+    UpdateImportsProvider &
+    CodeActionsProvider &
+    FindReferencesProvider &
+    RenameProvider &
+    SignatureHelpProvider &
+    SemanticTokensProvider &
+    LinkedEditingRangesProvider;
+
+export type LSProvider = ProviderBase & BackwardsCompatibleDefinitionsProvider;
+
+export interface LSPProviderConfig {
+    /**
+     * Whether or not completion lists that are marked as imcomplete
+     * should be filtered server side.
+     */
+    filterIncompleteCompletions: boolean;
+    /**
+     * Whether or not getDefinitions supports the LocationLink interface.
+     */
+    definitionLinkSupport: boolean;
+}
+
+export type Plugin = Partial<
+    ProviderBase &
+        DefinitionsProvider &
+        OnWatchFileChanges &
+        SelectionRangeProvider &
+        UpdateTsOrJsFile
+>;