/**
 * Type-assertion and cast-family expression emitters: typeAssertion (as T),
 * trycast, asinterface, numericNarrowing, stackalloc, defaultof, nameof, sizeof.
 */
import { IrExpression, IrType, IrNumericNarrowingExpression, IrTypeAssertionExpression, IrAsInterfaceExpression, IrTryCastExpression, IrStackAllocExpression, IrDefaultOfExpression, IrNameOfExpression, IrSizeOfExpression } from "@tsonic/frontend";
import type { NarrowedBinding } from "../emitter-types/core.js";
import { EmitterContext } from "../types.js";
import type { CSharpExpressionAst } from "../core/format/backend-ast/types.js";
export declare const POLYMORPHIC_THIS_MARKER = "__tsonic_polymorphic_this";
export declare const isPolymorphicThisType: (type: IrType | undefined) => boolean;
export declare const isSuperMemberCallExpression: (expr: IrExpression) => boolean;
export declare const getNarrowedBindingForExpression: (expr: IrExpression, context: EmitterContext) => NarrowedBinding | undefined;
export declare const withoutNarrowedBinding: (expr: IrExpression, context: EmitterContext) => EmitterContext;
/**
 * Emit a numeric narrowing expression as CSharpExpressionAst.
 */
export declare const emitNumericNarrowing: (expr: IrNumericNarrowingExpression, context: EmitterContext) => [CSharpExpressionAst, EmitterContext];
/**
 * Emit a type assertion expression as CSharpExpressionAst.
 *
 * TypeScript `x as T` becomes C# `(T)x` (throwing cast).
 */
export declare const emitTypeAssertion: (expr: IrTypeAssertionExpression, context: EmitterContext, expectedType?: IrType) => [CSharpExpressionAst, EmitterContext];
/**
 * Emit an asinterface expression as CSharpExpressionAst.
 */
export declare const emitAsInterface: (expr: IrAsInterfaceExpression, context: EmitterContext, expectedType?: IrType) => [CSharpExpressionAst, EmitterContext];
/**
 * Emit a trycast expression as CSharpExpressionAst.
 *
 * TypeScript `trycast<T>(x)` becomes C# `x as T` (safe cast).
 */
export declare const emitTryCast: (expr: IrTryCastExpression, context: EmitterContext) => [CSharpExpressionAst, EmitterContext];
/**
 * Emit a stackalloc expression as CSharpExpressionAst.
 */
export declare const emitStackAlloc: (expr: IrStackAllocExpression, context: EmitterContext) => [CSharpExpressionAst, EmitterContext];
/**
 * Emit a defaultof expression as CSharpExpressionAst.
 */
export declare const emitDefaultOf: (expr: IrDefaultOfExpression, context: EmitterContext) => [CSharpExpressionAst, EmitterContext];
/**
 * Emit a nameof expression as a compile-time string literal using the authored TS name.
 */
export declare const emitNameOf: (expr: IrNameOfExpression, context: EmitterContext) => [CSharpExpressionAst, EmitterContext];
/**
 * Emit a sizeof expression as C# sizeof(T).
 */
export declare const emitSizeOf: (expr: IrSizeOfExpression, context: EmitterContext) => [CSharpExpressionAst, EmitterContext];
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