tree-sitter.d.ts

declare module "tree-sitter" {
  class Parser {
    parse(input: string | Parser.Input | Parser.InputReader, oldTree?: Parser.Tree, options?: { bufferSize?: number, includedRanges?: Parser.Range[] }): Parser.Tree;
    getLanguage(): any;
    setLanguage(language: any): void;
    getLogger(): Parser.Logger;
    setLogger(logFunc: Parser.Logger): void;
    printDotGraphs(enabled: boolean): void;
  }

  namespace Parser {
    export type Point = {
      row: number;
      column: number;
    };

    export type Range = {
      startIndex: number,
      endIndex: number,
      startPosition: Point,
      endPosition: Point
    };

    export type Edit = {
      startIndex: number;
      oldEndIndex: number;
      newEndIndex: number;
      startPosition: Point;
      oldEndPosition: Point;
      newEndPosition: Point;
    };

    export type Logger = (
      message: string,
      params: {[param: string]: string},
      type: "parse" | "lex"
    ) => void;

    export interface InputReader {
      (index: any, position: Point): string;
    }

    export interface Input {
      seek(index: number): void;
      read(): any;
    }

    export interface SyntaxNode {
      tree: Tree;
      type: string;
      typeId: string;
      isNamed: boolean;
      text: string;
      startPosition: Point;
      endPosition: Point;
      startIndex: number;
      endIndex: number;
      parent: SyntaxNode | null;
      children: Array<SyntaxNode>;
      namedChildren: Array<SyntaxNode>;
      childCount: number;
      namedChildCount: number;
      firstChild: SyntaxNode | null;
      firstNamedChild: SyntaxNode | null;
      lastChild: SyntaxNode | null;
      lastNamedChild: SyntaxNode | null;
      nextSibling: SyntaxNode | null;
      nextNamedSibling: SyntaxNode | null;
      previousSibling: SyntaxNode | null;
      previousNamedSibling: SyntaxNode | null;

      hasChanges(): boolean;
      hasError(): boolean;
      isMissing(): boolean;
      toString(): string;
      child(index: number): SyntaxNode | null;
      namedChild(index: number): SyntaxNode | null;
      firstChildForIndex(index: number): SyntaxNode | null;
      firstNamedChildForIndex(index: number): SyntaxNode | null;

      descendantForIndex(index: number): SyntaxNode;
      descendantForIndex(startIndex: number, endIndex: number): SyntaxNode;
      namedDescendantForIndex(index: number): SyntaxNode;
      namedDescendantForIndex(startIndex: number, endIndex: number): SyntaxNode;
      descendantForPosition(position: Point): SyntaxNode;
      descendantForPosition(startPosition: Point, endPosition: Point): SyntaxNode;
      namedDescendantForPosition(position: Point): SyntaxNode;
      namedDescendantForPosition(startPosition: Point, endPosition: Point): SyntaxNode;
      descendantsOfType(types: String | Array<String>, startPosition?: Point, endPosition?: Point): Array<SyntaxNode>;

      closest(types: String | Array<String>): SyntaxNode | null;
      walk(): TreeCursor;
    }

    export interface TreeCursor {
      nodeType: string;
      nodeText: string;
      nodeIsNamed: boolean;
      nodeIsMissing: boolean;
      startPosition: Point;
      endPosition: Point;
      startIndex: number;
      endIndex: number;
      readonly currentNode: SyntaxNode;
      readonly currentFieldName: string;

      reset(node: SyntaxNode): void
      gotoParent(): boolean;
      gotoFirstChild(): boolean;
      gotoFirstChildForIndex(index: number): boolean;
      gotoNextSibling(): boolean;
    }

    export interface Tree {
      readonly rootNode: SyntaxNode;

      edit(delta: Edit): Tree;
      walk(): TreeCursor;
      getChangedRanges(other: Tree): Range[];
      getEditedRange(other: Tree): Range;
      printDotGraph(): void;
    }

    export interface QueryMatch {
      pattern: number,
      captures: QueryCapture[],
    }

    export interface QueryCapture {
      name: string,
      text?: string,
      node: SyntaxNode,
      setProperties?: {[prop: string]: string | null},
      assertedProperties?: {[prop: string]: string | null},
      refutedProperties?: {[prop: string]: string | null},
    }

    export class Query {
      readonly predicates: { [name: string]: Function }[];
      readonly setProperties: any[];
      readonly assertedProperties: any[];
      readonly refutedProperties: any[];

      constructor(language: any, source: string | Buffer);

      matches(rootNode: SyntaxNode, startPosition?: Point, endPosition?: Point): QueryMatch[];
      captures(rootNode: SyntaxNode, startPosition?: Point, endPosition?: Point): QueryCapture[];
    }
  }

  export = Parser
}