import { SelectionRange, CancellationToken, CodeAction, CodeActionContext, CodeActionKind, CodeLens, Color, ColorInformation, ColorPresentation, Command, CompletionContext, CompletionItem, CompletionList, Definition, DocumentHighlight, DocumentLink, DocumentSymbol, FoldingRange, FormattingOptions, Hover, Location, Position, Range, SignatureHelp, SymbolInformation, TextDocument, TextEdit, WorkspaceEdit, Event, DefinitionLink } from 'vscode-languageserver-protocol';
import { URI } from 'vscode-uri';
/**
 * A provider result represents the values a provider, like the [`HoverProvider`](#HoverProvider),
 * may return. For once this is the actual result type `T`, like `Hover`, or a thenable that resolves
 * to that type `T`. In addition, `null` and `undefined` can be returned - either directly or from a
 * thenable.
 *
 * The snippets below are all valid implementations of the [`HoverProvider`](#HoverProvider):
 *
 * ```ts
 * let a: HoverProvider = {
 *   provideHover(doc, pos, token): ProviderResult<Hover> {
 *     return new Hover('Hello World')
 *   }
 * }
 *
 * let b: HoverProvider = {
 *   provideHover(doc, pos, token): ProviderResult<Hover> {
 *     return new Promise(resolve => {
 *       resolve(new Hover('Hello World'))
 *      })
 *   }
 * }
 *
 * let c: HoverProvider = {
 *   provideHover(doc, pos, token): ProviderResult<Hover> {
 *     return; // undefined
 *   }
 * }
 * ```
 */
export declare type ProviderResult<T> = T | undefined | null | Thenable<T | undefined | null>;
/**
 * The completion item provider interface defines the contract between extensions and
 * [IntelliSense](https://code.visualstudio.com/docs/editor/intellisense).
 *
 * Providers can delay the computation of the [`detail`](#CompletionItem.detail)
 * and [`documentation`](#CompletionItem.documentation) properties by implementing the
 * [`resolveCompletionItem`](#CompletionItemProvider.resolveCompletionItem)-function. However, properties that
 * are needed for the inital sorting and filtering, like `sortText`, `filterText`, `insertText`, and `range`, must
 * not be changed during resolve.
 *
 * Providers are asked for completions either explicitly by a user gesture or -depending on the configuration-
 * implicitly when typing words or trigger characters.
 */
export interface CompletionItemProvider {
    /**
     * Provide completion items for the given position and document.
     *
     * @param document The document in which the command was invoked.
     * @param position The position at which the command was invoked.
     * @param token A cancellation token.
     * @param context How the completion was triggered.
     *
     * @return An array of completions, a [completion list](#CompletionList), or a thenable that resolves to either.
     * The lack of a result can be signaled by returning `undefined`, `null`, or an empty array.
     */
    provideCompletionItems(document: TextDocument, position: Position, token: CancellationToken, context?: CompletionContext): ProviderResult<CompletionItem[] | CompletionList>;
    /**
     * Given a completion item fill in more data, like [doc-comment](#CompletionItem.documentation)
     * or [details](#CompletionItem.detail).
     *
     * The editor will only resolve a completion item once.
     *
     * @param item A completion item currently active in the UI.
     * @param token A cancellation token.
     * @return The resolved completion item or a thenable that resolves to of such. It is OK to return the given
     * `item`. When no result is returned, the given `item` will be used.
     */
    resolveCompletionItem?(item: CompletionItem, token: CancellationToken): ProviderResult<CompletionItem>;
}
/**
 * The hover provider interface defines the contract between extensions and
 * the [hover](https://code.visualstudio.com/docs/editor/intellisense)-feature.
 */
export interface HoverProvider {
    /**
     * Provide a hover for the given position and document. Multiple hovers at the same
     * position will be merged by the editor. A hover can have a range which defaults
     * to the word range at the position when omitted.
     *
     * @param document The document in which the command was invoked.
     * @param position The position at which the command was invoked.
     * @param token A cancellation token.
     * @return A hover or a thenable that resolves to such. The lack of a result can be
     * signaled by returning `undefined` or `null`.
     */
    provideHover(document: TextDocument, position: Position, token: CancellationToken): ProviderResult<Hover>;
}
/**
 * The definition provider interface defines the contract between extensions and
 * the [go to definition](https://code.visualstudio.com/docs/editor/editingevolved#_go-to-definition)
 * and peek definition features.
 */
export interface DefinitionProvider {
    /**
     * Provide the definition of the symbol at the given position and document.
     *
     * @param document The document in which the command was invoked.
     * @param position The position at which the command was invoked.
     * @param token A cancellation token.
     * @return A definition or a thenable that resolves to such. The lack of a result can be
     * signaled by returning `undefined` or `null`.
     */
    provideDefinition(document: TextDocument, position: Position, token: CancellationToken): ProviderResult<Definition>;
}
/**
 * The definition provider interface defines the contract between extensions and
 * the [go to definition](https://code.visualstudio.com/docs/editor/editingevolved#_go-to-definition)
 * and peek definition features.
 */
export interface DeclarationProvider {
    /**
     * Provide the declaration of the symbol at the given position and document.
     */
    provideDeclaration(document: TextDocument, position: Position, token: CancellationToken): ProviderResult<Definition | DefinitionLink[]>;
}
/**
 * The signature help provider interface defines the contract between extensions and
 * the [parameter hints](https://code.visualstudio.com/docs/editor/intellisense)-feature.
 */
export interface SignatureHelpProvider {
    /**
     * Provide help for the signature at the given position and document.
     *
     * @param document The document in which the command was invoked.
     * @param position The position at which the command was invoked.
     * @param token A cancellation token.
     * @return Signature help or a thenable that resolves to such. The lack of a result can be
     * signaled by returning `undefined` or `null`.
     */
    provideSignatureHelp(document: TextDocument, position: Position, token: CancellationToken): ProviderResult<SignatureHelp>;
}
/**
 * The type definition provider defines the contract between extensions and
 * the go to type definition feature.
 */
export interface TypeDefinitionProvider {
    /**
     * Provide the type definition of the symbol at the given position and document.
     *
     * @param document The document in which the command was invoked.
     * @param position The position at which the command was invoked.
     * @param token A cancellation token.
     * @return A definition or a thenable that resolves to such. The lack of a result can be
     * signaled by returning `undefined` or `null`.
     */
    provideTypeDefinition(document: TextDocument, position: Position, token: CancellationToken): ProviderResult<Definition>;
}
/**
 * Value-object that contains additional information when
 * requesting references.
 */
export interface ReferenceContext {
    /**
     * Include the declaration of the current symbol.
     */
    includeDeclaration: boolean;
}
/**
 * The reference provider interface defines the contract between extensions and
 * the [find references](https://code.visualstudio.com/docs/editor/editingevolved#_peek)-feature.
 */
export interface ReferenceProvider {
    /**
     * Provide a set of project-wide references for the given position and document.
     *
     * @param document The document in which the command was invoked.
     * @param position The position at which the command was invoked.
     * @param context
     * @param token A cancellation token.
     * @return An array of locations or a thenable that resolves to such. The lack of a result can be
     * signaled by returning `undefined`, `null`, or an empty array.
     */
    provideReferences(document: TextDocument, position: Position, context: ReferenceContext, token: CancellationToken): ProviderResult<Location[]>;
}
/**
 * Folding context (for future use)
 */
export interface FoldingContext {
}
/**
 * The folding range provider interface defines the contract between extensions and
 * [Folding](https://code.visualstudio.com/docs/editor/codebasics#_folding) in the editor.
 */
export interface FoldingRangeProvider {
    /**
     * Returns a list of folding ranges or null and undefined if the provider
     * does not want to participate or was cancelled.
     * @param document The document in which the command was invoked.
     * @param context Additional context information (for future use)
     * @param token A cancellation token.
     */
    provideFoldingRanges(document: TextDocument, context: FoldingContext, token: CancellationToken): ProviderResult<FoldingRange[]>;
}
/**
 * The document symbol provider interface defines the contract between extensions and
 * the [go to symbol](https://code.visualstudio.com/docs/editor/editingevolved#_go-to-symbol)-feature.
 */
export interface DocumentSymbolProvider {
    /**
     * Provide symbol information for the given document.
     *
     * @param document The document in which the command was invoked.
     * @param token A cancellation token.
     * @return An array of document highlights or a thenable that resolves to such. The lack of a result can be
     * signaled by returning `undefined`, `null`, or an empty array.
     */
    provideDocumentSymbols(document: TextDocument, token: CancellationToken): ProviderResult<SymbolInformation[] | DocumentSymbol[]>;
}
/**
 * The implemenetation provider interface defines the contract between extensions and
 * the go to implementation feature.
 */
export interface ImplementationProvider {
    /**
     * Provide the implementations of the symbol at the given position and document.
     *
     * @param document The document in which the command was invoked.
     * @param position The position at which the command was invoked.
     * @param token A cancellation token.
     * @return A definition or a thenable that resolves to such. The lack of a result can be
     * signaled by returning `undefined` or `null`.
     */
    provideImplementation(document: TextDocument, position: Position, token: CancellationToken): ProviderResult<Definition>;
}
/**
 * The workspace symbol provider interface defines the contract between extensions and
 * the [symbol search](https://code.visualstudio.com/docs/editor/editingevolved#_open-symbol-by-name)-feature.
 */
export interface WorkspaceSymbolProvider {
    /**
     * Project-wide search for a symbol matching the given query string. It is up to the provider
     * how to search given the query string, like substring, indexOf etc. To improve performance implementors can
     * skip the [location](#SymbolInformation.location) of symbols and implement `resolveWorkspaceSymbol` to do that
     * later.
     *
     * The `query`-parameter should be interpreted in a *relaxed way* as the editor will apply its own highlighting
     * and scoring on the results. A good rule of thumb is to match case-insensitive and to simply check that the
     * characters of *query* appear in their order in a candidate symbol. Don't use prefix, substring, or similar
     * strict matching.
     *
     * @param query A non-empty query string.
     * @param token A cancellation token.
     * @return An array of document highlights or a thenable that resolves to such. The lack of a result can be
     * signaled by returning `undefined`, `null`, or an empty array.
     */
    provideWorkspaceSymbols(query: string, token: CancellationToken): ProviderResult<SymbolInformation[]>;
    /**
     * Given a symbol fill in its [location](#SymbolInformation.location). This method is called whenever a symbol
     * is selected in the UI. Providers can implement this method and return incomplete symbols from
     * [`provideWorkspaceSymbols`](#WorkspaceSymbolProvider.provideWorkspaceSymbols) which often helps to improve
     * performance.
     *
     * @param symbol The symbol that is to be resolved. Guaranteed to be an instance of an object returned from an
     * earlier call to `provideWorkspaceSymbols`.
     * @param token A cancellation token.
     * @return The resolved symbol or a thenable that resolves to that. When no result is returned,
     * the given `symbol` is used.
     */
    resolveWorkspaceSymbol?(symbol: SymbolInformation, token: CancellationToken): ProviderResult<SymbolInformation>;
}
/**
 * The rename provider interface defines the contract between extensions and
 * the [rename](https://code.visualstudio.com/docs/editor/editingevolved#_rename-symbol)-feature.
 */
export interface RenameProvider {
    /**
     * Provide an edit that describes changes that have to be made to one
     * or many resources to rename a symbol to a different name.
     *
     * @param document The document in which the command was invoked.
     * @param position The position at which the command was invoked.
     * @param newName The new name of the symbol. If the given name is not valid, the provider must return a rejected promise.
     * @param token A cancellation token.
     * @return A workspace edit or a thenable that resolves to such. The lack of a result can be
     * signaled by returning `undefined` or `null`.
     */
    provideRenameEdits(document: TextDocument, position: Position, newName: string, token: CancellationToken): ProviderResult<WorkspaceEdit>;
    /**
     * Optional function for resolving and validating a position *before* running rename. The result can
     * be a range or a range and a placeholder text. The placeholder text should be the identifier of the symbol
     * which is being renamed - when omitted the text in the returned range is used.
     *
     * @param document The document in which rename will be invoked.
     * @param position The position at which rename will be invoked.
     * @param token A cancellation token.
     * @return The range or range and placeholder text of the identifier that is to be renamed. The lack of a result can signaled by returning `undefined` or `null`.
     */
    prepareRename?(document: TextDocument, position: Position, token: CancellationToken): ProviderResult<Range | {
        range: Range;
        placeholder: string;
    }>;
}
/**
 * The document formatting provider interface defines the contract between extensions and
 * the formatting-feature.
 */
export interface DocumentFormattingEditProvider {
    /**
     * Provide formatting edits for a whole document.
     *
     * @param document The document in which the command was invoked.
     * @param options Options controlling formatting.
     * @param token A cancellation token.
     * @return A set of text edits or a thenable that resolves to such. The lack of a result can be
     * signaled by returning `undefined`, `null`, or an empty array.
     */
    provideDocumentFormattingEdits(document: TextDocument, options: FormattingOptions, token: CancellationToken): ProviderResult<TextEdit[]>;
}
/**
 * The document formatting provider interface defines the contract between extensions and
 * the formatting-feature.
 */
export interface DocumentRangeFormattingEditProvider {
    /**
     * Provide formatting edits for a range in a document.
     *
     * The given range is a hint and providers can decide to format a smaller
     * or larger range. Often this is done by adjusting the start and end
     * of the range to full syntax nodes.
     *
     * @param document The document in which the command was invoked.
     * @param range The range which should be formatted.
     * @param options Options controlling formatting.
     * @param token A cancellation token.
     * @return A set of text edits or a thenable that resolves to such. The lack of a result can be
     * signaled by returning `undefined`, `null`, or an empty array.
     */
    provideDocumentRangeFormattingEdits(document: TextDocument, range: Range, options: FormattingOptions, token: CancellationToken): ProviderResult<TextEdit[]>;
}
/**
 * The code action interface defines the contract between extensions and
 * the [light bulb](https://code.visualstudio.com/docs/editor/editingevolved#_code-action) feature.
 *
 * A code action can be any command that is [known](#commands.getCommands) to the system.
 */
export interface CodeActionProvider {
    /**
     * Provide commands for the given document and range.
     *
     * @param document The document in which the command was invoked.
     * @param range The selector or range for which the command was invoked. This will always be a selection if
     * there is a currently active editor.
     * @param context Context carrying additional information.
     * @param token A cancellation token.
     * @return An array of commands, quick fixes, or refactorings or a thenable of such. The lack of a result can be
     * signaled by returning `undefined`, `null`, or an empty array.
     */
    provideCodeActions(document: TextDocument, range: Range, context: CodeActionContext, token: CancellationToken): ProviderResult<(Command | CodeAction)[]>;
}
/**
 * Metadata about the type of code actions that a [CodeActionProvider](#CodeActionProvider) providers
 */
export interface CodeActionProviderMetadata {
    /**
     * [CodeActionKinds](#CodeActionKind) that this provider may return.
     *
     * The list of kinds may be generic, such as `CodeActionKind.Refactor`, or the provider
     * may list our every specific kind they provide, such as `CodeActionKind.Refactor.Extract.append('function`)`
     */
    readonly providedCodeActionKinds?: ReadonlyArray<CodeActionKind>;
}
/**
 * The document highlight provider interface defines the contract between extensions and
 * the word-highlight-feature.
 */
export interface DocumentHighlightProvider {
    /**
     * Provide a set of document highlights, like all occurrences of a variable or
     * all exit-points of a function.
     *
     * @param document The document in which the command was invoked.
     * @param position The position at which the command was invoked.
     * @param token A cancellation token.
     * @return An array of document highlights or a thenable that resolves to such. The lack of a result can be
     * signaled by returning `undefined`, `null`, or an empty array.
     */
    provideDocumentHighlights(document: TextDocument, position: Position, token: CancellationToken): ProviderResult<DocumentHighlight[]>;
}
/**
 * The document link provider defines the contract between extensions and feature of showing
 * links in the editor.
 */
export interface DocumentLinkProvider {
    /**
     * Provide links for the given document. Note that the editor ships with a default provider that detects
     * `http(s)` and `file` links.
     *
     * @param document The document in which the command was invoked.
     * @param token A cancellation token.
     * @return An array of [document links](#DocumentLink) or a thenable that resolves to such. The lack of a result
     * can be signaled by returning `undefined`, `null`, or an empty array.
     */
    provideDocumentLinks(document: TextDocument, token: CancellationToken): ProviderResult<DocumentLink[]>;
    /**
     * Given a link fill in its [target](#DocumentLink.target). This method is called when an incomplete
     * link is selected in the UI. Providers can implement this method and return incomple links
     * (without target) from the [`provideDocumentLinks`](#DocumentLinkProvider.provideDocumentLinks) method which
     * often helps to improve performance.
     *
     * @param link The link that is to be resolved.
     * @param token A cancellation token.
     */
    resolveDocumentLink?(link: DocumentLink, token: CancellationToken): ProviderResult<DocumentLink>;
}
/**
 * A code lens provider adds [commands](#Command) to source text. The commands will be shown
 * as dedicated horizontal lines in between the source text.
 */
export interface CodeLensProvider {
    /**
     * Compute a list of [lenses](#CodeLens). This call should return as fast as possible and if
     * computing the commands is expensive implementors should only return code lens objects with the
     * range set and implement [resolve](#CodeLensProvider.resolveCodeLens).
     *
     * @param document The document in which the command was invoked.
     * @param token A cancellation token.
     * @return An array of code lenses or a thenable that resolves to such. The lack of a result can be
     * signaled by returning `undefined`, `null`, or an empty array.
     */
    provideCodeLenses(document: TextDocument, token: CancellationToken): ProviderResult<CodeLens[]>;
    /**
     * This function will be called for each visible code lens, usually when scrolling and after
     * calls to [compute](#CodeLensProvider.provideCodeLenses)-lenses.
     *
     * @param codeLens code lens that must be resolved.
     * @param token A cancellation token.
     * @return The given, resolved code lens or thenable that resolves to such.
     */
    resolveCodeLens?(codeLens: CodeLens, token: CancellationToken): ProviderResult<CodeLens>;
}
/**
 * The document formatting provider interface defines the contract between extensions and
 * the formatting-feature.
 */
export interface OnTypeFormattingEditProvider {
    /**
     * Provide formatting edits after a character has been typed.
     *
     * The given position and character should hint to the provider
     * what range the position to expand to, like find the matching `{`
     * when `}` has been entered.
     *
     * @param document The document in which the command was invoked.
     * @param position The position at which the command was invoked.
     * @param ch The character that has been typed.
     * @param options Options controlling formatting.
     * @param token A cancellation token.
     * @return A set of text edits or a thenable that resolves to such. The lack of a result can be
     * signaled by returning `undefined`, `null`, or an empty array.
     */
    provideOnTypeFormattingEdits(document: TextDocument, position: Position, ch: string, options: FormattingOptions, token: CancellationToken): ProviderResult<TextEdit[]>;
}
/**
 * The document color provider defines the contract between extensions and feature of
 * picking and modifying colors in the editor.
 */
export interface DocumentColorProvider {
    /**
     * Provide colors for the given document.
     *
     * @param document The document in which the command was invoked.
     * @param token A cancellation token.
     * @return An array of [color information](#ColorInformation) or a thenable that resolves to such. The lack of a result
     * can be signaled by returning `undefined`, `null`, or an empty array.
     */
    provideDocumentColors(document: TextDocument, token: CancellationToken): ProviderResult<ColorInformation[]>;
    /**
     * Provide [representations](#ColorPresentation) for a color.
     *
     * @param color The color to show and insert.
     * @param context A context object with additional information
     * @param token A cancellation token.
     * @return An array of color presentations or a thenable that resolves to such. The lack of a result
     * can be signaled by returning `undefined`, `null`, or an empty array.
     */
    provideColorPresentations(color: Color, context: {
        document: TextDocument;
        range: Range;
    }, token: CancellationToken): ProviderResult<ColorPresentation[]>;
}
export interface TextDocumentContentProvider {
    /**
     * An event to signal a resource has changed.
     */
    onDidChange?: Event<URI>;
    /**
     * Provide textual content for a given uri.
     *
     * The editor will use the returned string-content to create a readonly
     * [document](#TextDocument). Resources allocated should be released when
     * the corresponding document has been [closed](#workspace.onDidCloseTextDocument).
     *
     * @param uri An uri which scheme matches the scheme this provider was [registered](#workspace.registerTextDocumentContentProvider) for.
     * @param token A cancellation token.
     * @return A string or a thenable that resolves to such.
     */
    provideTextDocumentContent(uri: URI, token: CancellationToken): ProviderResult<string>;
}
export interface SelectionRangeProvider {
    /**
     * Provide selection ranges starting at a given position. The first range must [contain](#Range.contains)
     * position and subsequent ranges must contain the previous range.
     */
    provideSelectionRanges(document: TextDocument, positions: Position[], token: CancellationToken): ProviderResult<SelectionRange[]>;
}