import { Lang } from "./lang";
import * as ast from "./ast";
import * as parsed from "./parsedsyntax";
export declare function restrictType(lang: Lang, syn: ast.Type): ast.Type;
export declare function restrictExpression(lang: Lang, syn: parsed.Expression): ast.Expression;
export declare function restrictLValue(lang: Lang, syn: parsed.Expression): ast.LValue;
export declare function restrictStatement(lang: Lang, syn: parsed.Statement): ast.Statement;
export declare function restrictDeclaration(lang: Lang, decl: parsed.Declaration | string): string | ast.Declaration;