import { Ast } from "@syuilo/aiscript/index.js";
import { AiAlreadyDeclaredVariableError } from "../errors/AiTypeError.js";
import { TypeValue } from "./TypeValue.js";
import { Variable } from "./Variable.js";
export declare class Scope {
    private parent?;
    private types;
    private variables;
    private overridedVariables;
    constructor(parent?: Scope, types?: Map<string, TypeValue>, variables?: Map<string, Variable>, overridedVariables?: Map<string, Variable>);
    copy(): Scope;
    createChild(): Scope;
    createNamespace(name: string): NamespaceScope;
    declareType(ident: Ast.Identifier, type: TypeValue): void;
    getType(ident: Ast.Identifier): TypeValue | null;
    hasType(ident: Ast.Identifier): boolean;
    defineVariable(ident: Ast.Identifier, variable: Variable): AiAlreadyDeclaredVariableError;
    overrideVariable(ident: Ast.Identifier, variable: Variable): void;
    getVariable(ident: Ast.Identifier): Variable | null;
    hasVariable(ident: Ast.Identifier): boolean;
    isDeclared(name: string): boolean;
}
export declare class NamespaceScope extends Scope {
    namespace: string;
    private _parent;
    private _variables;
    constructor(namespace: string, _parent: Scope, types?: Map<string, TypeValue>, _variables?: Map<string, Variable>);
    defineVariable(ident: Ast.Identifier, variable: Variable): AiAlreadyDeclaredVariableError;
}
export declare function createGlobalScope(): Scope;