/**
 * Source that is not VelarScript: an embedded JavaScript literal, a token an
 * extension's own scanner claims, and the `#name` a JavaScript private member
 * is written with inside one.
 *
 * D115 §三 / D114 R1f: the embedded-source half of `lexer.ts`.
 */
import { scanEmbeddedJavaScriptLiteral } from "../embedded-javascript.ts";
import type { CompilerLexicalExtension } from "../extension.ts";
import { type Advisory, type Diagnostic } from "../diagnostic.ts";
import { type Token } from "../token.ts";
/** Everything this half of the lexer asks of the scanner that hosts it, and nothing more. */
export interface EmbeddedScannersHost {
    advance(): string;
    readonly advisories: Advisory[];
    atLineStart: boolean;
    readonly diagnostics: {
        push(...reports: readonly Diagnostic[]): void;
    };
    readonly extensionScanners: NonNullable<CompilerLexicalExtension["scan"]>[];
    readonly indentStack: number[];
    index: number;
    isIdentifierPart(character: string): boolean;
    isIdentifierStart(character: string): boolean;
    peek(offset?: number): string;
    readonly text: string;
    readonly tokens: Token[];
}
export declare class EmbeddedScanners {
    private readonly host;
    constructor(host: EmbeddedScannersHost);
    readEmbeddedJavaScript(scanned: NonNullable<ReturnType<typeof scanEmbeddedJavaScriptLiteral>>): void;
    readExtensionToken(): boolean;
    readJavaScriptPrivateIdentifier(start: number): boolean;
}
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