import { evaluationFunction } from '.';
import { ASTNode } from './AST/types';


export let evaluationFunctions = {
	constant: node => node,
} as any;

export function registerEvaluationFunction<
	NodeName extends ASTNode['nodeKind']
>(nodeKind: NodeName, evaluationFunction: evaluationFunction<NodeName>) {
	evaluationFunctions ??= {};
	if (evaluationFunctions[nodeKind]) {
		throw Error(
			`Multiple evaluation functions registered for the nodeKind \x1b[4m${nodeKind}`
		);
	}
	evaluationFunctions[nodeKind] = evaluationFunction;
}