/**
 * Copyright 2017 Matt Acosta
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { Encoding } from '../text/Encoding';
import { PhpParserOptions } from './PhpParserOptions';
import { SourceTextSyntaxNode } from '../language/syntax/SourceTextSyntaxNode';
import { SyntaxDiagnostic } from '../diagnostics/SyntaxDiagnostic';
import { SyntaxTreeBase } from './SyntaxTree';
/**
 * @todo Document PhpSyntaxTree.
 */
export declare class PhpSyntaxTree extends SyntaxTreeBase<SourceTextSyntaxNode> {
    /**
     * @inheritDoc
     */
    readonly path: string;
    /**
     * @inheritDoc
     */
    readonly root: SourceTextSyntaxNode;
    /**
     * Parser configuration options.
     */
    protected readonly options: PhpParserOptions;
    /**
     * Creates a `PhpSyntaxTree` object.
     *
     * @param {SourceTextSyntaxNode} root
     *   The root node of a parsed source file.
     * @param {string} path
     *   The location of the source file.
     * @param {PhpParserOptions} options
     *   Parser configuration options.
     */
    constructor(root: SourceTextSyntaxNode, path: string, options: PhpParserOptions);
    /**
     * Parses a string into a syntax tree.
     *
     * @param {string} text
     *   A string containing source code.
     * @param {string=} path
     *   The location of the source file.
     * @param {PhpParserOptions=} options
     *   Parser configuration options.
     * @param {Encoding=} encoding
     *   The original encoding of the source text. Defaults to `Encoding.Utf8`.
     */
    static fromText(text: string, path?: string, options?: PhpParserOptions, encoding?: Encoding): PhpSyntaxTree;
    /**
     * @inheritDoc
     */
    getDiagnostics(): IterableIterator<SyntaxDiagnostic>;
}