using System;
using System.Collections.Generic;

namespace WasmBox.Wasm.Interpret {
    /// <summary>
    /// Defines a specification for objects that resolve WebAssembly imports.
    /// </summary>
    public interface IImporter {
        /// <summary>
        /// Imports the linear memory with the given description.
        /// </summary>
        /// <param name="description">Describes the memory to import.</param>
        /// <returns>An imported memory.</returns>
        LinearMemory ImportMemory( ImportedMemory description );

        /// <summary>
        /// Imports the global variable with the given description.
        /// </summary>
        /// <param name="description">Describes the global variable to import.</param>
        /// <returns>An imported global variable.</returns>
        Variable ImportGlobal( ImportedGlobal description );

        /// <summary>
        /// Imports the function with the given description.
        /// </summary>
        /// <param name="description">Describes the function to import.</param>
        /// <param name="signature">The signature of the function to import.</param>
        /// <returns>An imported function.</returns>
        FunctionDefinition ImportFunction( ImportedFunction description, FunctionType signature );

        /// <summary>
        /// Imports the table with the given description.
        /// </summary>
        /// <param name="description">Describes the table to import.</param>
        /// <returns>An imported table.</returns>
        FunctionTable ImportTable( ImportedTable description );
    }
}