js-slang/dist/parser/source/rules/noNull.js

Javascript-based implementations of Source, written in Typescript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.NoNullError = void 0;
const errors_1 = require("../../errors");
const types_1 = require("../../../types");
class NoNullError extends errors_1.RuleError {
    explain() {
        return `null literals are not allowed.`;
    }
    elaborate() {
        return "They're not part of the Source §1 specs.";
    }
}
exports.NoNullError = NoNullError;
const noNull = {
    name: 'no-null',
    disableFromChapter: types_1.Chapter.SOURCE_2,
    checkers: {
        Literal(node) {
            if (node.value === null) {
                return [new NoNullError(node)];
            }
            else {
                return [];
            }
        }
    }
};
exports.default = noNull;
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