/**
 * Output type validation per accessor (spec: "Type validation per accessor").
 * A best-effort STATIC shape check on the parsed AST — not full type
 * inference. It only raises an error when it can positively prove a
 * mismatch (e.g. a bare number literal where an array was expected);
 * anything opaque (a field reference, a call result, arithmetic) is left
 * unchecked rather than risk a false positive on a valid expression.
 */
import type { Expression } from "estree";
export type AccessorOutputShape = "position" | "color" | "number" | "string";
export declare const ACCESSOR_OUTPUT_SHAPES: Readonly<Record<string, AccessorOutputShape>>;
export declare function validateOutputShape(node: Expression, accessorName: string): void;