web-tree-sitter/debug/web-tree-sitter.js

Tree-sitter bindings for the web

var __defProp = Object.defineProperty;
var __name = (target, value) => __defProp(target, "name", { value, configurable: true });

// src/edit.ts
var Edit = class {
  static {
    __name(this, "Edit");
  }
  /** The start position of the change. */
  startPosition;
  /** The end position of the change before the edit. */
  oldEndPosition;
  /** The end position of the change after the edit. */
  newEndPosition;
  /** The start index of the change. */
  startIndex;
  /** The end index of the change before the edit. */
  oldEndIndex;
  /** The end index of the change after the edit. */
  newEndIndex;
  constructor({
    startIndex,
    oldEndIndex,
    newEndIndex,
    startPosition,
    oldEndPosition,
    newEndPosition
  }) {
    this.startIndex = startIndex >>> 0;
    this.oldEndIndex = oldEndIndex >>> 0;
    this.newEndIndex = newEndIndex >>> 0;
    this.startPosition = startPosition;
    this.oldEndPosition = oldEndPosition;
    this.newEndPosition = newEndPosition;
  }
  /**
   * Edit a point and index to keep it in-sync with source code that has been edited.
   *
   * This function updates a single point's byte offset and row/column position
   * based on an edit operation. This is useful for editing points without
   * requiring a tree or node instance.
   */
  editPoint(point, index) {
    let newIndex = index;
    const newPoint = { ...point };
    if (index >= this.oldEndIndex) {
      newIndex = this.newEndIndex + (index - this.oldEndIndex);
      const originalRow = point.row;
      newPoint.row = this.newEndPosition.row + (point.row - this.oldEndPosition.row);
      newPoint.column = originalRow === this.oldEndPosition.row ? this.newEndPosition.column + (point.column - this.oldEndPosition.column) : point.column;
    } else if (index > this.startIndex) {
      newIndex = this.newEndIndex;
      newPoint.row = this.newEndPosition.row;
      newPoint.column = this.newEndPosition.column;
    }
    return { point: newPoint, index: newIndex };
  }
  /**
   * Edit a range to keep it in-sync with source code that has been edited.
   *
   * This function updates a range's start and end positions based on an edit
   * operation. This is useful for editing ranges without requiring a tree
   * or node instance.
   */
  editRange(range) {
    const newRange = {
      startIndex: range.startIndex,
      startPosition: { ...range.startPosition },
      endIndex: range.endIndex,
      endPosition: { ...range.endPosition }
    };
    if (range.endIndex >= this.oldEndIndex) {
      if (range.endIndex !== Number.MAX_SAFE_INTEGER) {
        newRange.endIndex = this.newEndIndex + (range.endIndex - this.oldEndIndex);
        newRange.endPosition = {
          row: this.newEndPosition.row + (range.endPosition.row - this.oldEndPosition.row),
          column: range.endPosition.row === this.oldEndPosition.row ? this.newEndPosition.column + (range.endPosition.column - this.oldEndPosition.column) : range.endPosition.column
        };
        if (newRange.endIndex < this.newEndIndex) {
          newRange.endIndex = Number.MAX_SAFE_INTEGER;
          newRange.endPosition = { row: Number.MAX_SAFE_INTEGER, column: Number.MAX_SAFE_INTEGER };
        }
      }
    } else if (range.endIndex > this.startIndex) {
      newRange.endIndex = this.startIndex;
      newRange.endPosition = { ...this.startPosition };
    }
    if (range.startIndex >= this.oldEndIndex) {
      newRange.startIndex = this.newEndIndex + (range.startIndex - this.oldEndIndex);
      newRange.startPosition = {
        row: this.newEndPosition.row + (range.startPosition.row - this.oldEndPosition.row),
        column: range.startPosition.row === this.oldEndPosition.row ? this.newEndPosition.column + (range.startPosition.column - this.oldEndPosition.column) : range.startPosition.column
      };
      if (newRange.startIndex < this.newEndIndex) {
        newRange.startIndex = Number.MAX_SAFE_INTEGER;
        newRange.startPosition = { row: Number.MAX_SAFE_INTEGER, column: Number.MAX_SAFE_INTEGER };
      }
    } else if (range.startIndex > this.startIndex) {
      newRange.startIndex = this.startIndex;
      newRange.startPosition = { ...this.startPosition };
    }
    return newRange;
  }
};

// src/constants.ts
var SIZE_OF_SHORT = 2;
var SIZE_OF_INT = 4;
var SIZE_OF_CURSOR = 4 * SIZE_OF_INT;
var SIZE_OF_NODE = 5 * SIZE_OF_INT;
var SIZE_OF_POINT = 2 * SIZE_OF_INT;
var SIZE_OF_RANGE = 2 * SIZE_OF_INT + 2 * SIZE_OF_POINT;
var ZERO_POINT = { row: 0, column: 0 };
var INTERNAL = /* @__PURE__ */ Symbol("INTERNAL");
function assertInternal(x) {
  if (x !== INTERNAL) throw new Error("Illegal constructor");
}
__name(assertInternal, "assertInternal");
function isPoint(point) {
  return !!point && typeof point.row === "number" && typeof point.column === "number";
}
__name(isPoint, "isPoint");
function setModule(module2) {
  C = module2;
}
__name(setModule, "setModule");
var C;

// src/lookahead_iterator.ts
var LookaheadIterator = class {
  static {
    __name(this, "LookaheadIterator");
  }
  /** @internal */
  [0] = 0;
  // Internal handle for Wasm
  /** @internal */
  language;
  /** @internal */
  constructor(internal, address, language) {
    assertInternal(internal);
    this[0] = address;
    this.language = language;
  }
  /** Get the current symbol of the lookahead iterator. */
  get currentTypeId() {
    return C._ts_lookahead_iterator_current_symbol(this[0]);
  }
  /** Get the current symbol name of the lookahead iterator. */
  get currentType() {
    return this.language.types[this.currentTypeId] || "ERROR";
  }
  /** Delete the lookahead iterator, freeing its resources. */
  delete() {
    C._ts_lookahead_iterator_delete(this[0]);
    this[0] = 0;
  }
  /**
   * Reset the lookahead iterator.
   *
   * This returns `true` if the language was set successfully and `false`
   * otherwise.
   */
  reset(language, stateId) {
    if (C._ts_lookahead_iterator_reset(this[0], language[0], stateId)) {
      this.language = language;
      return true;
    }
    return false;
  }
  /**
   * Reset the lookahead iterator to another state.
   *
   * This returns `true` if the iterator was reset to the given state and
   * `false` otherwise.
   */
  resetState(stateId) {
    return Boolean(C._ts_lookahead_iterator_reset_state(this[0], stateId));
  }
  /**
   * Returns an iterator that iterates over the symbols of the lookahead iterator.
   *
   * The iterator will yield the current symbol name as a string for each step
   * until there are no more symbols to iterate over.
   */
  [Symbol.iterator]() {
    return {
      next: /* @__PURE__ */ __name(() => {
        if (C._ts_lookahead_iterator_next(this[0])) {
          return { done: false, value: this.currentType };
        }
        return { done: true, value: "" };
      }, "next")
    };
  }
};

// src/tree.ts
function getText(tree, startIndex, endIndex, startPosition) {
  const length = endIndex - startIndex;
  let result = tree.textCallback(startIndex, startPosition);
  if (result) {
    startIndex += result.length;
    while (startIndex < endIndex) {
      const string = tree.textCallback(startIndex, startPosition);
      if (string && string.length > 0) {
        startIndex += string.length;
        result += string;
      } else {
        break;
      }
    }
    if (startIndex > endIndex) {
      result = result.slice(0, length);
    }
  }
  return result ?? "";
}
__name(getText, "getText");
var Tree = class _Tree {
  static {
    __name(this, "Tree");
  }
  /** @internal */
  [0] = 0;
  // Internal handle for Wasm
  /** @internal */
  textCallback;
  /** The language that was used to parse the syntax tree. */
  language;
  /** @internal */
  constructor(internal, address, language, textCallback) {
    assertInternal(internal);
    this[0] = address;
    this.language = language;
    this.textCallback = textCallback;
  }
  /** Create a shallow copy of the syntax tree. This is very fast. */
  copy() {
    const address = C._ts_tree_copy(this[0]);
    return new _Tree(INTERNAL, address, this.language, this.textCallback);
  }
  /** Delete the syntax tree, freeing its resources. */
  delete() {
    C._ts_tree_delete(this[0]);
    this[0] = 0;
  }
  /** Get the root node of the syntax tree. */
  get rootNode() {
    C._ts_tree_root_node_wasm(this[0]);
    return unmarshalNode(this);
  }
  /**
   * Get the root node of the syntax tree, but with its position shifted
   * forward by the given offset.
   */
  rootNodeWithOffset(offsetBytes, offsetExtent) {
    const address = TRANSFER_BUFFER + SIZE_OF_NODE;
    C.setValue(address, offsetBytes, "i32");
    marshalPoint(address + SIZE_OF_INT, offsetExtent);
    C._ts_tree_root_node_with_offset_wasm(this[0]);
    return unmarshalNode(this);
  }
  /**
   * Edit the syntax tree to keep it in sync with source code that has been
   * edited.
   *
   * You must describe the edit both in terms of byte offsets and in terms of
   * row/column coordinates.
   */
  edit(edit) {
    marshalEdit(edit);
    C._ts_tree_edit_wasm(this[0]);
  }
  /** Create a new {@link TreeCursor} starting from the root of the tree. */
  walk() {
    return this.rootNode.walk();
  }
  /**
   * Compare this old edited syntax tree to a new syntax tree representing
   * the same document, returning a sequence of ranges whose syntactic
   * structure has changed.
   *
   * For this to work correctly, this syntax tree must have been edited such
   * that its ranges match up to the new tree. Generally, you'll want to
   * call this method right after calling one of the [`Parser::parse`]
   * functions. Call it on the old tree that was passed to parse, and
   * pass the new tree that was returned from `parse`.
   */
  getChangedRanges(other) {
    if (!(other instanceof _Tree)) {
      throw new TypeError("Argument must be a Tree");
    }
    C._ts_tree_get_changed_ranges_wasm(this[0], other[0]);
    const count = C.getValue(TRANSFER_BUFFER, "i32");
    const buffer = C.getValue(TRANSFER_BUFFER + SIZE_OF_INT, "i32");
    const result = new Array(count);
    if (count > 0) {
      let address = buffer;
      for (let i2 = 0; i2 < count; i2++) {
        result[i2] = unmarshalRange(address);
        address += SIZE_OF_RANGE;
      }
      C._free(buffer);
    }
    return result;
  }
  /** Get the included ranges that were used to parse the syntax tree. */
  getIncludedRanges() {
    C._ts_tree_included_ranges_wasm(this[0]);
    const count = C.getValue(TRANSFER_BUFFER, "i32");
    const buffer = C.getValue(TRANSFER_BUFFER + SIZE_OF_INT, "i32");
    const result = new Array(count);
    if (count > 0) {
      let address = buffer;
      for (let i2 = 0; i2 < count; i2++) {
        result[i2] = unmarshalRange(address);
        address += SIZE_OF_RANGE;
      }
      C._free(buffer);
    }
    return result;
  }
};

// src/tree_cursor.ts
var TreeCursor = class _TreeCursor {
  static {
    __name(this, "TreeCursor");
  }
  /** @internal */
  // @ts-expect-error: never read
  [0] = 0;
  // Internal handle for Wasm
  /** @internal */
  // @ts-expect-error: never read
  [1] = 0;
  // Internal handle for Wasm
  /** @internal */
  // @ts-expect-error: never read
  [2] = 0;
  // Internal handle for Wasm
  /** @internal */
  // @ts-expect-error: never read
  [3] = 0;
  // Internal handle for Wasm
  /** @internal */
  tree;
  /** @internal */
  constructor(internal, tree) {
    assertInternal(internal);
    this.tree = tree;
    unmarshalTreeCursor(this);
  }
  /** Creates a deep copy of the tree cursor. This allocates new memory. */
  copy() {
    const copy = new _TreeCursor(INTERNAL, this.tree);
    C._ts_tree_cursor_copy_wasm(this.tree[0]);
    unmarshalTreeCursor(copy);
    return copy;
  }
  /** Delete the tree cursor, freeing its resources. */
  delete() {
    marshalTreeCursor(this);
    C._ts_tree_cursor_delete_wasm(this.tree[0]);
    this[0] = this[1] = this[2] = 0;
  }
  /** Get the tree cursor's current {@link Node}. */
  get currentNode() {
    marshalTreeCursor(this);
    C._ts_tree_cursor_current_node_wasm(this.tree[0]);
    return unmarshalNode(this.tree);
  }
  /**
   * Get the numerical field id of this tree cursor's current node.
   *
   * See also {@link TreeCursor#currentFieldName}.
   */
  get currentFieldId() {
    marshalTreeCursor(this);
    return C._ts_tree_cursor_current_field_id_wasm(this.tree[0]);
  }
  /** Get the field name of this tree cursor's current node. */
  get currentFieldName() {
    return this.tree.language.fields[this.currentFieldId];
  }
  /**
   * Get the depth of the cursor's current node relative to the original
   * node that the cursor was constructed with.
   */
  get currentDepth() {
    marshalTreeCursor(this);
    return C._ts_tree_cursor_current_depth_wasm(this.tree[0]);
  }
  /**
   * Get the index of the cursor's current node out of all of the
   * descendants of the original node that the cursor was constructed with.
   */
  get currentDescendantIndex() {
    marshalTreeCursor(this);
    return C._ts_tree_cursor_current_descendant_index_wasm(this.tree[0]);
  }
  /** Get the type of the cursor's current node. */
  get nodeType() {
    return this.tree.language.types[this.nodeTypeId] || "ERROR";
  }
  /** Get the type id of the cursor's current node. */
  get nodeTypeId() {
    marshalTreeCursor(this);
    return C._ts_tree_cursor_current_node_type_id_wasm(this.tree[0]);
  }
  /** Get the state id of the cursor's current node. */
  get nodeStateId() {
    marshalTreeCursor(this);
    return C._ts_tree_cursor_current_node_state_id_wasm(this.tree[0]);
  }
  /** Get the id of the cursor's current node. */
  get nodeId() {
    marshalTreeCursor(this);
    return C._ts_tree_cursor_current_node_id_wasm(this.tree[0]);
  }
  /**
   * Check if the cursor's current node is *named*.
   *
   * Named nodes correspond to named rules in the grammar, whereas
   * *anonymous* nodes correspond to string literals in the grammar.
   */
  get nodeIsNamed() {
    marshalTreeCursor(this);
    return C._ts_tree_cursor_current_node_is_named_wasm(this.tree[0]) === 1;
  }
  /**
   * Check if the cursor's current node is *missing*.
   *
   * Missing nodes are inserted by the parser in order to recover from
   * certain kinds of syntax errors.
   */
  get nodeIsMissing() {
    marshalTreeCursor(this);
    return C._ts_tree_cursor_current_node_is_missing_wasm(this.tree[0]) === 1;
  }
  /** Get the string content of the cursor's current node. */
  get nodeText() {
    marshalTreeCursor(this);
    const startIndex = C._ts_tree_cursor_start_index_wasm(this.tree[0]);
    const endIndex = C._ts_tree_cursor_end_index_wasm(this.tree[0]);
    C._ts_tree_cursor_start_position_wasm(this.tree[0]);
    const startPosition = unmarshalPoint(TRANSFER_BUFFER);
    return getText(this.tree, startIndex, endIndex, startPosition);
  }
  /** Get the start position of the cursor's current node. */
  get startPosition() {
    marshalTreeCursor(this);
    C._ts_tree_cursor_start_position_wasm(this.tree[0]);
    return unmarshalPoint(TRANSFER_BUFFER);
  }
  /** Get the end position of the cursor's current node. */
  get endPosition() {
    marshalTreeCursor(this);
    C._ts_tree_cursor_end_position_wasm(this.tree[0]);
    return unmarshalPoint(TRANSFER_BUFFER);
  }
  /** Get the start index of the cursor's current node. */
  get startIndex() {
    marshalTreeCursor(this);
    return C._ts_tree_cursor_start_index_wasm(this.tree[0]);
  }
  /** Get the end index of the cursor's current node. */
  get endIndex() {
    marshalTreeCursor(this);
    return C._ts_tree_cursor_end_index_wasm(this.tree[0]);
  }
  /**
   * Move this cursor to the first child of its current node.
   *
   * This returns `true` if the cursor successfully moved, and returns
   * `false` if there were no children.
   */
  gotoFirstChild() {
    marshalTreeCursor(this);
    const result = C._ts_tree_cursor_goto_first_child_wasm(this.tree[0]);
    unmarshalTreeCursor(this);
    return result === 1;
  }
  /**
   * Move this cursor to the last child of its current node.
   *
   * This returns `true` if the cursor successfully moved, and returns
   * `false` if there were no children.
   *
   * Note that this function may be slower than
   * {@link TreeCursor#gotoFirstChild} because it needs to
   * iterate through all the children to compute the child's position.
   */
  gotoLastChild() {
    marshalTreeCursor(this);
    const result = C._ts_tree_cursor_goto_last_child_wasm(this.tree[0]);
    unmarshalTreeCursor(this);
    return result === 1;
  }
  /**
   * Move this cursor to the parent of its current node.
   *
   * This returns `true` if the cursor successfully moved, and returns
   * `false` if there was no parent node (the cursor was already on the
   * root node).
   *
   * Note that the node the cursor was constructed with is considered the root
   * of the cursor, and the cursor cannot walk outside this node.
   */
  gotoParent() {
    marshalTreeCursor(this);
    const result = C._ts_tree_cursor_goto_parent_wasm(this.tree[0]);
    unmarshalTreeCursor(this);
    return result === 1;
  }
  /**
   * Move this cursor to the next sibling of its current node.
   *
   * This returns `true` if the cursor successfully moved, and returns
   * `false` if there was no next sibling node.
   *
   * Note that the node the cursor was constructed with is considered the root
   * of the cursor, and the cursor cannot walk outside this node.
   */
  gotoNextSibling() {
    marshalTreeCursor(this);
    const result = C._ts_tree_cursor_goto_next_sibling_wasm(this.tree[0]);
    unmarshalTreeCursor(this);
    return result === 1;
  }
  /**
   * Move this cursor to the previous sibling of its current node.
   *
   * This returns `true` if the cursor successfully moved, and returns
   * `false` if there was no previous sibling node.
   *
   * Note that this function may be slower than
   * {@link TreeCursor#gotoNextSibling} due to how node
   * positions are stored. In the worst case, this will need to iterate
   * through all the children up to the previous sibling node to recalculate
   * its position. Also note that the node the cursor was constructed with is
   * considered the root of the cursor, and the cursor cannot walk outside this node.
   */
  gotoPreviousSibling() {
    marshalTreeCursor(this);
    const result = C._ts_tree_cursor_goto_previous_sibling_wasm(this.tree[0]);
    unmarshalTreeCursor(this);
    return result === 1;
  }
  /**
   * Move the cursor to the node that is the nth descendant of
   * the original node that the cursor was constructed with, where
   * zero represents the original node itself.
   */
  gotoDescendant(goalDescendantIndex) {
    marshalTreeCursor(this);
    C._ts_tree_cursor_goto_descendant_wasm(this.tree[0], goalDescendantIndex);
    unmarshalTreeCursor(this);
  }
  /**
   * Move this cursor to the first child of its current node that contains or
   * starts after the given byte offset.
   *
   * This returns `true` if the cursor successfully moved to a child node, and returns
   * `false` if no such child was found.
   */
  gotoFirstChildForIndex(goalIndex) {
    marshalTreeCursor(this);
    C.setValue(TRANSFER_BUFFER + SIZE_OF_CURSOR, goalIndex, "i32");
    const result = C._ts_tree_cursor_goto_first_child_for_index_wasm(this.tree[0]);
    unmarshalTreeCursor(this);
    return result === 1;
  }
  /**
   * Move this cursor to the first child of its current node that contains or
   * starts after the given byte offset.
   *
   * This returns the index of the child node if one was found, and returns
   * `null` if no such child was found.
   */
  gotoFirstChildForPosition(goalPosition) {
    marshalTreeCursor(this);
    marshalPoint(TRANSFER_BUFFER + SIZE_OF_CURSOR, goalPosition);
    const result = C._ts_tree_cursor_goto_first_child_for_position_wasm(this.tree[0]);
    unmarshalTreeCursor(this);
    return result === 1;
  }
  /**
   * Re-initialize this tree cursor to start at the original node that the
   * cursor was constructed with.
   */
  reset(node) {
    marshalNode(node);
    marshalTreeCursor(this, TRANSFER_BUFFER + SIZE_OF_NODE);
    C._ts_tree_cursor_reset_wasm(this.tree[0]);
    unmarshalTreeCursor(this);
  }
  /**
   * Re-initialize a tree cursor to the same position as another cursor.
   *
   * Unlike {@link TreeCursor#reset}, this will not lose parent
   * information and allows reusing already created cursors.
   */
  resetTo(cursor) {
    marshalTreeCursor(this, TRANSFER_BUFFER);
    marshalTreeCursor(cursor, TRANSFER_BUFFER + SIZE_OF_CURSOR);
    C._ts_tree_cursor_reset_to_wasm(this.tree[0], cursor.tree[0]);
    unmarshalTreeCursor(this);
  }
};

// src/node.ts
var Node = class {
  static {
    __name(this, "Node");
  }
  /** @internal */
  // @ts-expect-error: never read
  [0] = 0;
  // Internal handle for Wasm
  /** @internal */
  _children;
  /** @internal */
  _namedChildren;
  /** @internal */
  constructor(internal, {
    id,
    tree,
    startIndex,
    startPosition,
    other
  }) {
    assertInternal(internal);
    this[0] = other;
    this.id = id;
    this.tree = tree;
    this.startIndex = startIndex;
    this.startPosition = startPosition;
  }
  /**
   * The numeric id for this node that is unique.
   *
   * Within a given syntax tree, no two nodes have the same id. However:
   *
   * * If a new tree is created based on an older tree, and a node from the old tree is reused in
   *   the process, then that node will have the same id in both trees.
   *
   * * A node not marked as having changes does not guarantee it was reused.
   *
   * * If a node is marked as having changed in the old tree, it will not be reused.
   */
  id;
  /** The byte index where this node starts. */
  startIndex;
  /** The position where this node starts. */
  startPosition;
  /** The tree that this node belongs to. */
  tree;
  /** Get this node's type as a numerical id. */
  get typeId() {
    marshalNode(this);
    return C._ts_node_symbol_wasm(this.tree[0]);
  }
  /**
   * Get the node's type as a numerical id as it appears in the grammar,
   * ignoring aliases.
   */
  get grammarId() {
    marshalNode(this);
    return C._ts_node_grammar_symbol_wasm(this.tree[0]);
  }
  /** Get this node's type as a string. */
  get type() {
    return this.tree.language.types[this.typeId] || "ERROR";
  }
  /**
   * Get this node's symbol name as it appears in the grammar, ignoring
   * aliases as a string.
   */
  get grammarType() {
    return this.tree.language.types[this.grammarId] || "ERROR";
  }
  /**
   * Check if this node is *named*.
   *
   * Named nodes correspond to named rules in the grammar, whereas
   * *anonymous* nodes correspond to string literals in the grammar.
   */
  get isNamed() {
    marshalNode(this);
    return C._ts_node_is_named_wasm(this.tree[0]) === 1;
  }
  /**
   * Check if this node is *extra*.
   *
   * Extra nodes represent things like comments, which are not required
   * by the grammar, but can appear anywhere.
   */
  get isExtra() {
    marshalNode(this);
    return C._ts_node_is_extra_wasm(this.tree[0]) === 1;
  }
  /**
   * Check if this node represents a syntax error.
   *
   * Syntax errors represent parts of the code that could not be incorporated
   * into a valid syntax tree.
   */
  get isError() {
    marshalNode(this);
    return C._ts_node_is_error_wasm(this.tree[0]) === 1;
  }
  /**
   * Check if this node is *missing*.
   *
   * Missing nodes are inserted by the parser in order to recover from
   * certain kinds of syntax errors.
   */
  get isMissing() {
    marshalNode(this);
    return C._ts_node_is_missing_wasm(this.tree[0]) === 1;
  }
  /** Check if this node has been edited. */
  get hasChanges() {
    marshalNode(this);
    return C._ts_node_has_changes_wasm(this.tree[0]) === 1;
  }
  /**
   * Check if this node represents a syntax error or contains any syntax
   * errors anywhere within it.
   */
  get hasError() {
    marshalNode(this);
    return C._ts_node_has_error_wasm(this.tree[0]) === 1;
  }
  /** Get the byte index where this node ends. */
  get endIndex() {
    marshalNode(this);
    return C._ts_node_end_index_wasm(this.tree[0]);
  }
  /** Get the position where this node ends. */
  get endPosition() {
    marshalNode(this);
    C._ts_node_end_point_wasm(this.tree[0]);
    return unmarshalPoint(TRANSFER_BUFFER);
  }
  /** Get the string content of this node. */
  get text() {
    return getText(this.tree, this.startIndex, this.endIndex, this.startPosition);
  }
  /** Get this node's parse state. */
  get parseState() {
    marshalNode(this);
    return C._ts_node_parse_state_wasm(this.tree[0]);
  }
  /** Get the parse state after this node. */
  get nextParseState() {
    marshalNode(this);
    return C._ts_node_next_parse_state_wasm(this.tree[0]);
  }
  /** Check if this node is equal to another node. */
  equals(other) {
    return this.tree === other.tree && this.id === other.id;
  }
  /**
   * Get the node's child at the given index, where zero represents the first child.
   *
   * This method is fairly fast, but its cost is technically log(n), so if
   * you might be iterating over a long list of children, you should use
   * {@link Node#children} instead.
   */
  child(index) {
    marshalNode(this);
    C._ts_node_child_wasm(this.tree[0], index);
    return unmarshalNode(this.tree);
  }
  /**
   * Get this node's *named* child at the given index.
   *
   * See also {@link Node#isNamed}.
   * This method is fairly fast, but its cost is technically log(n), so if
   * you might be iterating over a long list of children, you should use
   * {@link Node#namedChildren} instead.
   */
  namedChild(index) {
    marshalNode(this);
    C._ts_node_named_child_wasm(this.tree[0], index);
    return unmarshalNode(this.tree);
  }
  /**
   * Get this node's child with the given numerical field id.
   *
   * See also {@link Node#childForFieldName}. You can
   * convert a field name to an id using {@link Language#fieldIdForName}.
   */
  childForFieldId(fieldId) {
    marshalNode(this);
    C._ts_node_child_by_field_id_wasm(this.tree[0], fieldId);
    return unmarshalNode(this.tree);
  }
  /**
   * Get the first child with the given field name.
   *
   * If multiple children may have the same field name, access them using
   * {@link Node#childrenForFieldName}.
   */
  childForFieldName(fieldName) {
    const fieldId = this.tree.language.fields.indexOf(fieldName);
    if (fieldId !== -1) return this.childForFieldId(fieldId);
    return null;
  }
  /** Get the field name of this node's child at the given index. */
  fieldNameForChild(index) {
    marshalNode(this);
    const address = C._ts_node_field_name_for_child_wasm(this.tree[0], index);
    if (!address) return null;
    return C.AsciiToString(address);
  }
  /** Get the field name of this node's named child at the given index. */
  fieldNameForNamedChild(index) {
    marshalNode(this);
    const address = C._ts_node_field_name_for_named_child_wasm(this.tree[0], index);
    if (!address) return null;
    return C.AsciiToString(address);
  }
  /**
   * Get an array of this node's children with a given field name.
   *
   * See also {@link Node#children}.
   */
  childrenForFieldName(fieldName) {
    const fieldId = this.tree.language.fields.indexOf(fieldName);
    if (fieldId !== -1 && fieldId !== 0) return this.childrenForFieldId(fieldId);
    return [];
  }
  /**
    * Get an array of this node's children with a given field id.
    *
    * See also {@link Node#childrenForFieldName}.
    */
  childrenForFieldId(fieldId) {
    marshalNode(this);
    C._ts_node_children_by_field_id_wasm(this.tree[0], fieldId);
    const count = C.getValue(TRANSFER_BUFFER, "i32");
    const buffer = C.getValue(TRANSFER_BUFFER + SIZE_OF_INT, "i32");
    const result = new Array(count);
    if (count > 0) {
      let address = buffer;
      for (let i2 = 0; i2 < count; i2++) {
        result[i2] = unmarshalNode(this.tree, address);
        address += SIZE_OF_NODE;
      }
      C._free(buffer);
    }
    return result;
  }
  /** Get the node's first child that contains or starts after the given byte offset. */
  firstChildForIndex(index) {
    marshalNode(this);
    const address = TRANSFER_BUFFER + SIZE_OF_NODE;
    C.setValue(address, index, "i32");
    C._ts_node_first_child_for_byte_wasm(this.tree[0]);
    return unmarshalNode(this.tree);
  }
  /** Get the node's first named child that contains or starts after the given byte offset. */
  firstNamedChildForIndex(index) {
    marshalNode(this);
    const address = TRANSFER_BUFFER + SIZE_OF_NODE;
    C.setValue(address, index, "i32");
    C._ts_node_first_named_child_for_byte_wasm(this.tree[0]);
    return unmarshalNode(this.tree);
  }
  /** Get this node's number of children. */
  get childCount() {
    marshalNode(this);
    return C._ts_node_child_count_wasm(this.tree[0]);
  }
  /**
   * Get this node's number of *named* children.
   *
   * See also {@link Node#isNamed}.
   */
  get namedChildCount() {
    marshalNode(this);
    return C._ts_node_named_child_count_wasm(this.tree[0]);
  }
  /** Get this node's first child. */
  get firstChild() {
    return this.child(0);
  }
  /**
   * Get this node's first named child.
   *
   * See also {@link Node#isNamed}.
   */
  get firstNamedChild() {
    return this.namedChild(0);
  }
  /** Get this node's last child. */
  get lastChild() {
    return this.child(this.childCount - 1);
  }
  /**
   * Get this node's last named child.
   *
   * See also {@link Node#isNamed}.
   */
  get lastNamedChild() {
    return this.namedChild(this.namedChildCount - 1);
  }
  /**
   * Iterate over this node's children.
   *
   * If you're walking the tree recursively, you may want to use the
   * {@link TreeCursor} APIs directly instead.
   */
  get children() {
    if (!this._children) {
      marshalNode(this);
      C._ts_node_children_wasm(this.tree[0]);
      const count = C.getValue(TRANSFER_BUFFER, "i32");
      const buffer = C.getValue(TRANSFER_BUFFER + SIZE_OF_INT, "i32");
      this._children = new Array(count);
      if (count > 0) {
        let address = buffer;
        for (let i2 = 0; i2 < count; i2++) {
          this._children[i2] = unmarshalNode(this.tree, address);
          address += SIZE_OF_NODE;
        }
        C._free(buffer);
      }
    }
    return this._children;
  }
  /**
   * Iterate over this node's named children.
   *
   * See also {@link Node#children}.
   */
  get namedChildren() {
    if (!this._namedChildren) {
      marshalNode(this);
      C._ts_node_named_children_wasm(this.tree[0]);
      const count = C.getValue(TRANSFER_BUFFER, "i32");
      const buffer = C.getValue(TRANSFER_BUFFER + SIZE_OF_INT, "i32");
      this._namedChildren = new Array(count);
      if (count > 0) {
        let address = buffer;
        for (let i2 = 0; i2 < count; i2++) {
          this._namedChildren[i2] = unmarshalNode(this.tree, address);
          address += SIZE_OF_NODE;
        }
        C._free(buffer);
      }
    }
    return this._namedChildren;
  }
  /**
   * Get the descendants of this node that are the given type, or in the given types array.
   *
   * The types array should contain node type strings, which can be retrieved from {@link Language#types}.
   *
   * Additionally, a `startPosition` and `endPosition` can be passed in to restrict the search to a byte range.
   */
  descendantsOfType(types, startPosition = ZERO_POINT, endPosition = ZERO_POINT) {
    if (!Array.isArray(types)) types = [types];
    const symbols = [];
    const typesBySymbol = this.tree.language.types;
    for (const node_type of types) {
      if (node_type == "ERROR") {
        symbols.push(65535);
      }
    }
    for (let i2 = 0, n = typesBySymbol.length; i2 < n; i2++) {
      if (types.includes(typesBySymbol[i2])) {
        symbols.push(i2);
      }
    }
    const symbolsAddress = C._malloc(SIZE_OF_INT * symbols.length);
    for (let i2 = 0, n = symbols.length; i2 < n; i2++) {
      C.setValue(symbolsAddress + i2 * SIZE_OF_INT, symbols[i2], "i32");
    }
    marshalNode(this);
    C._ts_node_descendants_of_type_wasm(
      this.tree[0],
      symbolsAddress,
      symbols.length,
      startPosition.row,
      startPosition.column,
      endPosition.row,
      endPosition.column
    );
    const descendantCount = C.getValue(TRANSFER_BUFFER, "i32");
    const descendantAddress = C.getValue(TRANSFER_BUFFER + SIZE_OF_INT, "i32");
    const result = new Array(descendantCount);
    if (descendantCount > 0) {
      let address = descendantAddress;
      for (let i2 = 0; i2 < descendantCount; i2++) {
        result[i2] = unmarshalNode(this.tree, address);
        address += SIZE_OF_NODE;
      }
    }
    C._free(descendantAddress);
    C._free(symbolsAddress);
    return result;
  }
  /** Get this node's next sibling. */
  get nextSibling() {
    marshalNode(this);
    C._ts_node_next_sibling_wasm(this.tree[0]);
    return unmarshalNode(this.tree);
  }
  /** Get this node's previous sibling. */
  get previousSibling() {
    marshalNode(this);
    C._ts_node_prev_sibling_wasm(this.tree[0]);
    return unmarshalNode(this.tree);
  }
  /**
   * Get this node's next *named* sibling.
   *
   * See also {@link Node#isNamed}.
   */
  get nextNamedSibling() {
    marshalNode(this);
    C._ts_node_next_named_sibling_wasm(this.tree[0]);
    return unmarshalNode(this.tree);
  }
  /**
   * Get this node's previous *named* sibling.
   *
   * See also {@link Node#isNamed}.
   */
  get previousNamedSibling() {
    marshalNode(this);
    C._ts_node_prev_named_sibling_wasm(this.tree[0]);
    return unmarshalNode(this.tree);
  }
  /** Get the node's number of descendants, including one for the node itself. */
  get descendantCount() {
    marshalNode(this);
    return C._ts_node_descendant_count_wasm(this.tree[0]);
  }
  /**
   * Get this node's immediate parent.
   * Prefer {@link Node#childWithDescendant} for iterating over this node's ancestors.
   */
  get parent() {
    marshalNode(this);
    C._ts_node_parent_wasm(this.tree[0]);
    return unmarshalNode(this.tree);
  }
  /**
   * Get the node that contains `descendant`.
   *
   * Note that this can return `descendant` itself.
   */
  childWithDescendant(descendant) {
    marshalNode(this);
    marshalNode(descendant, 1);
    C._ts_node_child_with_descendant_wasm(this.tree[0]);
    return unmarshalNode(this.tree);
  }
  /** Get the smallest node within this node that spans the given byte range. */
  descendantForIndex(start2, end = start2) {
    if (typeof start2 !== "number" || typeof end !== "number") {
      throw new Error("Arguments must be numbers");
    }
    marshalNode(this);
    const address = TRANSFER_BUFFER + SIZE_OF_NODE;
    C.setValue(address, start2, "i32");
    C.setValue(address + SIZE_OF_INT, end, "i32");
    C._ts_node_descendant_for_index_wasm(this.tree[0]);
    return unmarshalNode(this.tree);
  }
  /** Get the smallest named node within this node that spans the given byte range. */
  namedDescendantForIndex(start2, end = start2) {
    if (typeof start2 !== "number" || typeof end !== "number") {
      throw new Error("Arguments must be numbers");
    }
    marshalNode(this);
    const address = TRANSFER_BUFFER + SIZE_OF_NODE;
    C.setValue(address, start2, "i32");
    C.setValue(address + SIZE_OF_INT, end, "i32");
    C._ts_node_named_descendant_for_index_wasm(this.tree[0]);
    return unmarshalNode(this.tree);
  }
  /** Get the smallest node within this node that spans the given point range. */
  descendantForPosition(start2, end = start2) {
    if (!isPoint(start2) || !isPoint(end)) {
      throw new Error("Arguments must be {row, column} objects");
    }
    marshalNode(this);
    const address = TRANSFER_BUFFER + SIZE_OF_NODE;
    marshalPoint(address, start2);
    marshalPoint(address + SIZE_OF_POINT, end);
    C._ts_node_descendant_for_position_wasm(this.tree[0]);
    return unmarshalNode(this.tree);
  }
  /** Get the smallest named node within this node that spans the given point range. */
  namedDescendantForPosition(start2, end = start2) {
    if (!isPoint(start2) || !isPoint(end)) {
      throw new Error("Arguments must be {row, column} objects");
    }
    marshalNode(this);
    const address = TRANSFER_BUFFER + SIZE_OF_NODE;
    marshalPoint(address, start2);
    marshalPoint(address + SIZE_OF_POINT, end);
    C._ts_node_named_descendant_for_position_wasm(this.tree[0]);
    return unmarshalNode(this.tree);
  }
  /**
   * Create a new {@link TreeCursor} starting from this node.
   *
   * Note that the given node is considered the root of the cursor,
   * and the cursor cannot walk outside this node.
   */
  walk() {
    marshalNode(this);
    C._ts_tree_cursor_new_wasm(this.tree[0]);
    return new TreeCursor(INTERNAL, this.tree);
  }
  /**
   * Edit this node to keep it in-sync with source code that has been edited.
   *
   * This function is only rarely needed. When you edit a syntax tree with
   * the {@link Tree#edit} method, all of the nodes that you retrieve from
   * the tree afterward will already reflect the edit. You only need to
   * use {@link Node#edit} when you have a specific {@link Node} instance that
   * you want to keep and continue to use after an edit.
   */
  edit(edit) {
    if (this.startIndex >= edit.oldEndIndex) {
      this.startIndex = edit.newEndIndex + (this.startIndex - edit.oldEndIndex);
      let subbedPointRow;
      let subbedPointColumn;
      if (this.startPosition.row > edit.oldEndPosition.row) {
        subbedPointRow = this.startPosition.row - edit.oldEndPosition.row;
        subbedPointColumn = this.startPosition.column;
      } else {
        subbedPointRow = 0;
        subbedPointColumn = this.startPosition.column;
        if (this.startPosition.column >= edit.oldEndPosition.column) {
          subbedPointColumn = this.startPosition.column - edit.oldEndPosition.column;
        }
      }
      if (subbedPointRow > 0) {
        this.startPosition.row += subbedPointRow;
        this.startPosition.column = subbedPointColumn;
      } else {
        this.startPosition.column += subbedPointColumn;
      }
    } else if (this.startIndex > edit.startIndex) {
      this.startIndex = edit.newEndIndex;
      this.startPosition.row = edit.newEndPosition.row;
      this.startPosition.column = edit.newEndPosition.column;
    }
  }
  /** Get the S-expression representation of this node. */
  toString() {
    marshalNode(this);
    const address = C._ts_node_to_string_wasm(this.tree[0]);
    const result = C.AsciiToString(address);
    C._free(address);
    return result;
  }
};

// src/marshal.ts
function unmarshalCaptures(query, tree, address, patternIndex, result) {
  for (let i2 = 0, n = result.length; i2 < n; i2++) {
    const captureIndex = C.getValue(address, "i32");
    address += SIZE_OF_INT;
    const node = unmarshalNode(tree, address);
    address += SIZE_OF_NODE;
    result[i2] = { patternIndex, name: query.captureNames[captureIndex], node };
  }
  return address;
}
__name(unmarshalCaptures, "unmarshalCaptures");
function marshalNode(node, index = 0) {
  let address = TRANSFER_BUFFER + index * SIZE_OF_NODE;
  C.setValue(address, node.id, "i32");
  address += SIZE_OF_INT;
  C.setValue(address, node.startIndex, "i32");
  address += SIZE_OF_INT;
  C.setValue(address, node.startPosition.row, "i32");
  address += SIZE_OF_INT;
  C.setValue(address, node.startPosition.column, "i32");
  address += SIZE_OF_INT;
  C.setValue(address, node[0], "i32");
}
__name(marshalNode, "marshalNode");
function unmarshalNode(tree, address = TRANSFER_BUFFER) {
  const id = C.getValue(address, "i32");
  address += SIZE_OF_INT;
  if (id === 0) return null;
  const index = C.getValue(address, "i32");
  address += SIZE_OF_INT;
  const row = C.getValue(address, "i32");
  address += SIZE_OF_INT;
  const column = C.getValue(address, "i32");
  address += SIZE_OF_INT;
  const other = C.getValue(address, "i32");
  const result = new Node(INTERNAL, {
    id,
    tree,
    startIndex: index,
    startPosition: { row, column },
    other
  });
  return result;
}
__name(unmarshalNode, "unmarshalNode");
function marshalTreeCursor(cursor, address = TRANSFER_BUFFER) {
  C.setValue(address + 0 * SIZE_OF_INT, cursor[0], "i32");
  C.setValue(address + 1 * SIZE_OF_INT, cursor[1], "i32");
  C.setValue(address + 2 * SIZE_OF_INT, cursor[2], "i32");
  C.setValue(address + 3 * SIZE_OF_INT, cursor[3], "i32");
}
__name(marshalTreeCursor, "marshalTreeCursor");
function unmarshalTreeCursor(cursor) {
  cursor[0] = C.getValue(TRANSFER_BUFFER + 0 * SIZE_OF_INT, "i32");
  cursor[1] = C.getValue(TRANSFER_BUFFER + 1 * SIZE_OF_INT, "i32");
  cursor[2] = C.getValue(TRANSFER_BUFFER + 2 * SIZE_OF_INT, "i32");
  cursor[3] = C.getValue(TRANSFER_BUFFER + 3 * SIZE_OF_INT, "i32");
}
__name(unmarshalTreeCursor, "unmarshalTreeCursor");
function marshalPoint(address, point) {
  C.setValue(address, point.row, "i32");
  C.setValue(address + SIZE_OF_INT, point.column, "i32");
}
__name(marshalPoint, "marshalPoint");
function unmarshalPoint(address) {
  const result = {
    row: C.getValue(address, "i32") >>> 0,
    column: C.getValue(address + SIZE_OF_INT, "i32") >>> 0
  };
  return result;
}
__name(unmarshalPoint, "unmarshalPoint");
function marshalRange(address, range) {
  marshalPoint(address, range.startPosition);
  address += SIZE_OF_POINT;
  marshalPoint(address, range.endPosition);
  address += SIZE_OF_POINT;
  C.setValue(address, range.startIndex, "i32");
  address += SIZE_OF_INT;
  C.setValue(address, range.endIndex, "i32");
  address += SIZE_OF_INT;
}
__name(marshalRange, "marshalRange");
function unmarshalRange(address) {
  const result = {};
  result.startPosition = unmarshalPoint(address);
  address += SIZE_OF_POINT;
  result.endPosition = unmarshalPoint(address);
  address += SIZE_OF_POINT;
  result.startIndex = C.getValue(address, "i32") >>> 0;
  address += SIZE_OF_INT;
  result.endIndex = C.getValue(address, "i32") >>> 0;
  return result;
}
__name(unmarshalRange, "unmarshalRange");
function marshalEdit(edit, address = TRANSFER_BUFFER) {
  marshalPoint(address, edit.startPosition);
  address += SIZE_OF_POINT;
  marshalPoint(address, edit.oldEndPosition);
  address += SIZE_OF_POINT;
  marshalPoint(address, edit.newEndPosition);
  address += SIZE_OF_POINT;
  C.setValue(address, edit.startIndex, "i32");
  address += SIZE_OF_INT;
  C.setValue(address, edit.oldEndIndex, "i32");
  address += SIZE_OF_INT;
  C.setValue(address, edit.newEndIndex, "i32");
  address += SIZE_OF_INT;
}
__name(marshalEdit, "marshalEdit");
function unmarshalLanguageMetadata(address) {
  const major_version = C.getValue(address, "i32");
  const minor_version = C.getValue(address += SIZE_OF_INT, "i32");
  const patch_version = C.getValue(address += SIZE_OF_INT, "i32");
  return { major_version, minor_version, patch_version };
}
__name(unmarshalLanguageMetadata, "unmarshalLanguageMetadata");

// src/language.ts
var LANGUAGE_FUNCTION_REGEX = /^tree_sitter_\w+$/;
var Language = class _Language {
  static {
    __name(this, "Language");
  }
  /** @internal */
  [0] = 0;
  // Internal handle for Wasm
  /**
   * A list of all node types in the language. The index of each type in this
   * array is its node type id.
   */
  types;
  /**
   * A list of all field names in the language. The index of each field name in
   * this array is its field id.
   */
  fields;
  /** @internal */
  constructor(internal, address) {
    assertInternal(internal);
    this[0] = address;
    this.types = new Array(C._ts_language_symbol_count(this[0]));
    for (let i2 = 0, n = this.types.length; i2 < n; i2++) {
      if (C._ts_language_symbol_type(this[0], i2) < 2) {
        this.types[i2] = C.UTF8ToString(C._ts_language_symbol_name(this[0], i2));
      }
    }
    this.fields = new Array(C._ts_language_field_count(this[0]) + 1);
    for (let i2 = 0, n = this.fields.length; i2 < n; i2++) {
      const fieldName = C._ts_language_field_name_for_id(this[0], i2);
      if (fieldName !== 0) {
        this.fields[i2] = C.UTF8ToString(fieldName);
      } else {
        this.fields[i2] = null;
      }
    }
  }
  /**
   * Gets the name of the language.
   */
  get name() {
    const ptr = C._ts_language_name(this[0]);
    if (ptr === 0) return null;
    return C.UTF8ToString(ptr);
  }
  /**
   * Gets the ABI version of the language.
   */
  get abiVersion() {
    return C._ts_language_abi_version(this[0]);
  }
  /**
  * Get the metadata for this language. This information is generated by the
  * CLI, and relies on the language author providing the correct metadata in
  * the language's `tree-sitter.json` file.
  */
  get metadata() {
    C._ts_language_metadata_wasm(this[0]);
    const length = C.getValue(TRANSFER_BUFFER, "i32");
    if (length === 0) return null;
    return unmarshalLanguageMetadata(TRANSFER_BUFFER + SIZE_OF_INT);
  }
  /**
   * Gets the number of fields in the language.
   */
  get fieldCount() {
    return this.fields.length - 1;
  }
  /**
   * Gets the number of states in the language.
   */
  get stateCount() {
    return C._ts_language_state_count(this[0]);
  }
  /**
   * Get the field id for a field name.
   */
  fieldIdForName(fieldName) {
    const result = this.fields.indexOf(fieldName);
    return result !== -1 ? result : null;
  }
  /**
   * Get the field name for a field id.
   */
  fieldNameForId(fieldId) {
    return this.fields[fieldId] ?? null;
  }
  /**
   * Get the node type id for a node type name.
   */
  idForNodeType(type, named) {
    const typeLength = C.lengthBytesUTF8(type);
    const typeAddress = C._malloc(typeLength + 1);
    C.stringToUTF8(type, typeAddress, typeLength + 1);
    const result = C._ts_language_symbol_for_name(this[0], typeAddress, typeLength, named ? 1 : 0);
    C._free(typeAddress);
    return result || null;
  }
  /**
   * Gets the number of node types in the language.
   */
  get nodeTypeCount() {
    return C._ts_language_symbol_count(this[0]);
  }
  /**
   * Get the node type name for a node type id.
   */
  nodeTypeForId(typeId) {
    const name2 = C._ts_language_symbol_name(this[0], typeId);
    return name2 ? C.UTF8ToString(name2) : null;
  }
  /**
   * Check if a node type is named.
   *
   * @see {@link https://tree-sitter.github.io/tree-sitter/using-parsers/2-basic-parsing.html#named-vs-anonymous-nodes}
   */
  nodeTypeIsNamed(typeId) {
    return C._ts_language_type_is_named_wasm(this[0], typeId) ? true : false;
  }
  /**
   * Check if a node type is visible.
   */
  nodeTypeIsVisible(typeId) {
    return C._ts_language_type_is_visible_wasm(this[0], typeId) ? true : false;
  }
  /**
   * Get the supertypes ids of this language.
   *
   * @see {@link https://tree-sitter.github.io/tree-sitter/using-parsers/6-static-node-types.html?highlight=supertype#supertype-nodes}
   */
  get supertypes() {
    C._ts_language_supertypes_wasm(this[0]);
    const count = C.getValue(TRANSFER_BUFFER, "i32");
    const buffer = C.getValue(TRANSFER_BUFFER + SIZE_OF_INT, "i32");
    const result = new Array(count);
    if (count > 0) {
      let address = buffer;
      for (let i2 = 0; i2 < count; i2++) {
        result[i2] = C.getValue(address, "i16");
        address += SIZE_OF_SHORT;
      }
    }
    return result;
  }
  /**
   * Get the subtype ids for a given supertype node id.
   */
  subtypes(supertype) {
    C._ts_language_subtypes_wasm(this[0], supertype);
    const count = C.getValue(TRANSFER_BUFFER, "i32");
    const buffer = C.getValue(TRANSFER_BUFFER + SIZE_OF_INT, "i32");
    const result = new Array(count);
    if (count > 0) {
      let address = buffer;
      for (let i2 = 0; i2 < count; i2++) {
        result[i2] = C.getValue(address, "i16");
        address += SIZE_OF_SHORT;
      }
    }
    return result;
  }
  /**
   * Get the next state id for a given state id and node type id.
   */
  nextState(stateId, typeId) {
    return C._ts_language_next_state(this[0], stateId, typeId);
  }
  /**
   * Create a new lookahead iterator for this language and parse state.
   *
   * This returns `null` if state is invalid for this language.
   *
   * Iterating {@link LookaheadIterator} will yield valid symbols in the given
   * parse state. Newly created lookahead iterators will return the `ERROR`
   * symbol from {@link LookaheadIterator#currentType}.
   *
   * Lookahead iterators can be useful for generating suggestions and improving
   * syntax error diagnostics. To get symbols valid in an `ERROR` node, use the
   * lookahead iterator on its first leaf node state. For `MISSING` nodes, a
   * lookahead iterator created on the previous non-extra leaf node may be
   * appropriate.
   */
  lookaheadIterator(stateId) {
    const address = C._ts_lookahead_iterator_new(this[0], stateId);
    if (address) return new LookaheadIterator(INTERNAL, address, this);
    return null;
  }
  /**
   * Load a language from a WebAssembly module.
   * The module can be provided as a path to a file or as a buffer.
   */
  static async load(input) {
    let binary2;
    if (input instanceof Uint8Array) {
      binary2 = input;
    } else if (globalThis.process?.versions.node) {
      const fs2 = await import("fs/promises");
      binary2 = await fs2.readFile(input);
    } else {
      const response = await fetch(input);
      if (!response.ok) {
        const body2 = await response.text();
        throw new Error(`Language.load failed with status ${response.status}.

${body2}`);
      }
      const retryResp = response.clone();
      try {
        binary2 = await WebAssembly.compileStreaming(response);
      } catch (reason) {
        console.error("wasm streaming compile failed:", reason);
        console.error("falling back to ArrayBuffer instantiation");
        binary2 = new Uint8Array(await retryResp.arrayBuffer());
      }
    }
    const mod = await C.loadWebAssemblyModule(binary2, { loadAsync: true });
    const symbolNames = Object.keys(mod);
    const functionName = symbolNames.find((key) => LANGUAGE_FUNCTION_REGEX.test(key) && !key.includes("external_scan