/**
 * Walk the top-level statements of an OXC program and collect a map of
 * statically-resolvable string-valued `const NAME = ...` declarations.
 *
 * Used so decorator metadata fields like `template:` can reference
 * module-level Tailwind class chains (or any other string constants) via
 * JS template-literal interpolation. Resolution is iterative: a const may
 * reference earlier-resolved consts via `${other}` interpolation.
 *
 * Only `const` declarations are considered. Non-string initializers,
 * function calls, member access, and any expression that cannot be reduced
 * to a string at parse time are ignored.
 */
export declare function collectStringConstants(oxcProgram: any): Map<string, string>;
/**
 * Extract decorator metadata from an OXC decorator AST node.
 * Parses @Component, @Directive, @Pipe, @Injectable, @NgModule arguments.
 *
 * `stringConsts`, when provided, lets string-typed metadata fields
 * (`template`, `selector`, `templateUrl`, `styles`, `styleUrl`, `styleUrls`,
 * `name`, `exportAs`, `providedIn`) resolve module-level string constants
 * referenced via template-literal interpolation, e.g.
 * `template: \`<div class="${tw}">x</div>\``.
 */
export declare function extractMetadata(dec: any | undefined, sourceCode: string, stringConsts?: Map<string, string>): any;
/**
 * Detect signal-based APIs on class members: input(), model(), output(),
 * viewChild(), contentChild(), viewChildren(), contentChildren().
 */
export declare function detectSignals(classNode: any, sourceCode: string): {
    inputs: any;
    outputs: any;
    viewQueries: any[];
    contentQueries: any[];
};
/**
 * Detect decorator-based field metadata: @Input, @Output, @ViewChild,
 * @ContentChild, @ViewChildren, @ContentChildren, @HostBinding, @HostListener.
 */
export declare function detectFieldDecorators(classNode: any, sourceCode: string): {
    inputs: any;
    outputs: any;
    viewQueries: any[];
    contentQueries: any[];
    hostProperties: Record<string, string>;
    hostListeners: Record<string, string>;
};
/**
 * Analyze constructor parameters for dependency injection.
 * Returns:
 * - R3DependencyMetadata[] for normal constructors
 * - null if class extends another without own constructor (use inherited factory)
 * - 'invalid' if any parameter has a type-only import token
 *
 * Accepts an OXC ClassDeclaration node and the original source string.
 */
export declare function extractConstructorDeps(classNode: any, sourceCode: string, typeOnlyImports: Set<string>): any[] | 'invalid' | null;