/**
 * Local variable type AST resolution.
 *
 * Determines the C# type AST for local variable declarations,
 * handling asinterface, explicit annotations, nullish initializers,
 * nullable value unions, function expressions, and stackalloc.
 */
import { IrExpression, IrParameter, IrType, IrBlockStatement } from "@tsonic/frontend";
import { EmitterContext } from "../../types.js";
import type { CSharpTypeAst } from "../../core/format/backend-ast/types.js";
/**
 * Determine the C# type AST for a local variable declaration.
 *
 * Priority:
 * 1) asinterface initializer - use target type
 * 2) Explicit/inferred IR type (if C#-emittable)
 * 3) Nullish initializer with annotation - use explicit type
 * 4) Nullish initializer without annotation - use inferred or object?
 * 5) Types needing explicit declaration (byte, sbyte, short, ushort)
 * 6) stackalloc - target-typed to produce Span<T>
 * 7) var
 */
export declare const resolveLocalTypeAst: (decl: {
    readonly type?: IrType;
    readonly initializer?: {
        readonly kind: string;
        readonly value?: unknown;
        readonly name?: string;
        readonly targetType?: IrType;
        readonly inferredType?: IrType;
        readonly parameters?: readonly IrParameter[];
        readonly returnType?: IrType;
        readonly body?: IrBlockStatement | IrExpression;
    };
}, context: EmitterContext) => [CSharpTypeAst, EmitterContext];
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