/**
 * SchemaAST Builder
 *
 * Constructs a SchemaAST from:
 * - Entity metadata (decorator-based entities)
 * - Database introspection results (TableSchema[])
 */
import type { EntityMeta, FieldOptions, Type } from '../type/index.js';
import type { NamingStrategy } from '../type/namingStrategy.js';
import { SchemaAST } from './schemaAST.js';
import type { ForeignKeyAction } from './types.js';
/**
 * Options for building SchemaAST from entities.
 */
export interface BuildFromEntitiesOptions {
    /** Custom table name resolver */
    resolveTableName?: (entity: Type<unknown>, meta: EntityMeta<unknown>) => string;
    /** Custom column name resolver */
    resolveColumnName?: (key: string, field: FieldOptions) => string;
    /** Naming strategy to use */
    namingStrategy?: NamingStrategy;
    /** Default action for foreign key ON DELETE and ON UPDATE clauses */
    defaultForeignKeyAction?: ForeignKeyAction;
}
/**
 * Builds SchemaAST instances from various sources.
 */
export declare class SchemaASTBuilder {
    private readonly namingStrategy?;
    private readonly defaultForeignKeyAction;
    private ast;
    constructor(namingStrategy?: NamingStrategy | undefined, defaultForeignKeyAction?: ForeignKeyAction);
    /**
     * Reset the builder for a new schema.
     */
    reset(): this;
    /**
     * Get the built AST.
     */
    getAST(): SchemaAST;
    /**
     * Build AST from entity classes (decorated with @Entity, @Field, etc.)
     */
    fromEntities(entities: Type<unknown>[], options?: BuildFromEntitiesOptions): SchemaAST;
    /**
     * Add a table from entity metadata.
     */
    private addTableFromEntity;
    /**
     * Add relationships from entity relation decorators.
     */
    private addRelationshipsFromEntity;
    /**
     * Add indexes from field options.
     */
    private addIndexesFromEntity;
}
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