/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { AbsoluteSourceSpan, ParseSourceSpan } from '@angular/compiler';
import ts from 'typescript';
/**
 * Reads the trailing comments and finds the first match which is a span comment (i.e. 4,10) on a
 * node and returns it as an `AbsoluteSourceSpan`.
 *
 * Will return `null` if no trailing comments on the node match the expected form of a source span.
 */
export declare function readSpanComment(node: ts.Node, sourceFile?: ts.SourceFile): AbsoluteSourceSpan | null;
/** Used to identify what type the comment is. */
export declare enum CommentTriviaType {
    DIAGNOSTIC = "D",
    EXPRESSION_TYPE_IDENTIFIER = "T"
}
/** Identifies what the TCB expression is for (for example, a directive declaration). */
export declare enum ExpressionIdentifier {
    DIRECTIVE = "DIR",
    COMPONENT_COMPLETION = "COMPCOMP",
    EVENT_PARAMETER = "EP"
}
/** Tags the node with the given expression identifier. */
export declare function addExpressionIdentifier(node: ts.Node, identifier: ExpressionIdentifier): void;
/**
 * Tag the `ts.Node` with an indication that any errors arising from the evaluation of the node
 * should be ignored.
 */
export declare function markIgnoreDiagnostics(node: ts.Node): void;
/** Returns true if the node has a marker that indicates diagnostics errors should be ignored.  */
export declare function hasIgnoreForDiagnosticsMarker(node: ts.Node, sourceFile: ts.SourceFile): boolean;
export interface FindOptions<T extends ts.Node> {
    filter: (node: ts.Node) => node is T;
    withExpressionIdentifier?: ExpressionIdentifier;
    withSpan?: AbsoluteSourceSpan | ParseSourceSpan;
}
/**
 * Given a `ts.Node` with finds the first node whose matching the criteria specified
 * by the `FindOptions`.
 *
 * Returns `null` when no `ts.Node` matches the given conditions.
 */
export declare function findFirstMatchingNode<T extends ts.Node>(tcb: ts.Node, opts: FindOptions<T>): T | null;
/**
 * Given a `ts.Node` with source span comments, finds the first node whose source span comment
 * matches the given `sourceSpan`. Additionally, the `filter` function allows matching only
 * `ts.Nodes` of a given type, which provides the ability to select only matches of a given type
 * when there may be more than one.
 *
 * Returns `null` when no `ts.Node` matches the given conditions.
 */
export declare function findAllMatchingNodes<T extends ts.Node>(tcb: ts.Node, opts: FindOptions<T>): T[];
export declare function hasExpressionIdentifier(sourceFile: ts.SourceFile, node: ts.Node, identifier: ExpressionIdentifier): boolean;
