/**
 * C# code emitter — Declaration IR → C# source code.
 *
 * Replaces `file.cs.njk` Nunjucks template with a typed TypeScript function
 * that walks the TypeDecl tree and produces a complete C# class file.
 *
 * Each TypeDecl becomes one C# file (one class per file).
 * Polymorphic types use abstract class + child : Base inheritance.
 *
 * Structural blocks emitted (in order):
 *   1. Copyright + using directives
 *   2. Namespace
 *   3. XML doc comment
 *   4. Class declaration
 *   5. ShorthandProperty
 *   6. Constructor
 *   7. Properties
 *   8. #region Load Methods
 *   9. #region Save Methods
 *  10. #region Factory Methods (if any)
 *  11. #region Helpers (if any)
 */
import { TypeDecl, EnumDef } from "../../ir/declarations.js";
import { ExprVisitor } from "../../ir/visitor.js";
/**
 * True when a TypeSpec scalar maps to C#'s 32-bit `float` (System.Single).
 *
 * Generated test literals must carry an `f` suffix for these and none for
 * 64-bit fields: `0.9f` widens to 0.8999999761581421 as a double, so an
 * unsuffixed literal compared against a `float?` — or a suffixed one compared
 * against a `double?` — fails on precision alone.
 */
export declare function isCSharpSinglePrecision(scalarType: string): boolean;
/**
 * Emit a complete C# class file for a single TypeDecl.
 */
export declare function emitCSharpClass(type: TypeDecl, namespace: string, visitor: ExprVisitor, allTypes: TypeDecl[], findType: (name: string) => TypeDecl | undefined): string;
/**
 * Emit a C# enum file for a named string-literal type.
 * Uses JsonStringEnumConverter for JSON serialization.
 */
export declare function emitCSharpEnum(enumDef: EnumDef, namespace: string): string;
/** Map a protocol type string to a C# type. */
export declare function protocolCSharpType(typeStr: string): string;