import * as ts from 'typescript';
export interface AstChange {
    start: number;
    end: number;
    replacement: string;
}
export declare function applyChanges(content: string, changes: AstChange[]): string;
/**
 * Removes named imports from a module matching `fromModulePattern`.
 * If the import statement becomes empty, removes the entire statement.
 * Returns the changes and the list of names that were actually removed.
 */
export declare function buildRemoveNamedImportsChanges(sourceFile: ts.SourceFile, names: string[], fromModulePattern: string): {
    changes: AstChange[];
    removedNames: string[];
};
/**
 * Inserts `import { name } from 'fromModule';` on its own line after the last existing import
 * statement, preserving the file's line ending and without introducing a blank line.
 * If no imports exist, prepends to the file.
 */
export declare function insertImportStatement(content: string, name: string, fromModule: string): string;
/**
 * True when `symbolName` is already imported from `fromModule` (exact module specifier).
 */
export declare function isSymbolImportedFrom(content: string, symbolName: string, fromModule: string): boolean;
/**
 * Adds `symbolName` to the existing import statement for `fromModule`, or creates the statement.
 * No-op when the symbol is already imported from that module.
 */
export declare function ensureNamedImport(content: string, symbolName: string, fromModule: string): string;
/**
 * Bare identifier names listed in a decorator metadata array (`imports`, `exports`, `declarations`).
 * Call expressions such as `RouterModule.forRoot(...)` or `PermissionsModule.forChild(...)` are
 * reduced to their leftmost identifier (`RouterModule`, `PermissionsModule`).
 */
export declare function getMetadataArrayNames(sourceFile: ts.SourceFile, metadata: ts.ObjectLiteralExpression, propName: string): string[];
/** String literal value of a decorator metadata property (e.g. `templateUrl`). */
export declare function getMetadataStringProperty(sourceFile: ts.SourceFile, metadata: ts.ObjectLiteralExpression, propName: string): string | undefined;
/** `true`/`false` value of a decorator metadata property (e.g. `standalone`). */
export declare function getMetadataBooleanProperty(sourceFile: ts.SourceFile, metadata: ts.ObjectLiteralExpression, propName: string): boolean | undefined;
/** `true` when the metadata object declares `propName` at all, regardless of its value. */
export declare function hasMetadataProperty(sourceFile: ts.SourceFile, metadata: ts.ObjectLiteralExpression, propName: string): boolean;
/**
 * Standalone components/directives/pipes can only appear in an @NgModule's `exports` if they
 * are also present in that module's `imports` (the Angular compiler rejects export-only entries,
 * unlike classic NgModules which can be re-exported without being imported). This backfills
 * `imports` whenever `symbolName` ends up in `exports` without it.
 */
export declare function ensureExportedSymbolIsImported(content: string, symbolName: string): string;
export declare const ngModule: {
    replaceInImports(sourceFile: ts.SourceFile, remove: string[], add: string): AstChange[];
    replaceInExports(sourceFile: ts.SourceFile, remove: string[], add: string): AstChange[];
    addToImports(sourceFile: ts.SourceFile, add: string, className?: string): AstChange[];
    find(sourceFile: ts.SourceFile): {
        classDeclaration: ts.ClassDeclaration;
        metadata: ts.ObjectLiteralExpression;
    }[];
};
export declare const ngComponent: {
    replaceInImports(sourceFile: ts.SourceFile, remove: string[], add: string): AstChange[];
    addToImports(sourceFile: ts.SourceFile, add: string, className?: string): AstChange[];
    find(sourceFile: ts.SourceFile): {
        classDeclaration: ts.ClassDeclaration;
        metadata: ts.ObjectLiteralExpression;
    }[];
};
/**
 * Replaces bare identifiers inside ANY array literal in the file (NgModule imports/exports,
 * standalone Component imports, TestBed.configureTestingModule imports/declarations, etc.)
 * with a single replacement identifier. Deduplicates if the replacement is already present.
 */
export declare function replaceIdentifierInArrayLiterals(sourceFile: ts.SourceFile, remove: string[], add: string): AstChange[];
/**
 * Removes a property assignment from an object literal, handling comma cleanup.
 * - Non-last property: removes from property start to next property start (trailing comma).
 * - Last property: removes from previous property end to this property end (leading comma).
 * - Only property: removes the property content, leaving empty braces.
 */
export declare function buildRemoveObjectPropertyChange(sourceFile: ts.SourceFile, obj: ts.ObjectLiteralExpression, prop: ts.PropertyAssignment): AstChange[];