Function parseRelationalOption

src/util/conditionalExpression.ts:384–442

(
    exprOption: RelationalExpressionOption,
    getters: ConditionalGetters
)

}

function parseRelationalOption(
    exprOption: RelationalExpressionOption,
    getters: ConditionalGetters
): ParsedConditionInternal {
    let errMsg = '';

    const valueGetterParam = getters.prepareGetValue(exprOption);

    const subCondList = [] as RelationalConditionInternal['subCondList'];
    const exprKeys = keys(exprOption);

    const parserName = exprOption.parser;
    const valueParser = parserName ? getRawValueParser(parserName) : null;

    for (let i = 0; i < exprKeys.length; i++) {
        const keyRaw = exprKeys[i];
        if (keyRaw === 'parser' || getters.valueGetterAttrMap.get(keyRaw)) {
            continue;
        }

        const op: keyof RelationalExpressionOptionByOp = hasOwn(RELATIONAL_EXPRESSION_OP_ALIAS_MAP, keyRaw)
            ? RELATIONAL_EXPRESSION_OP_ALIAS_MAP[keyRaw as keyof RelationalExpressionOptionByOpAlias]
            : (keyRaw as keyof RelationalExpressionOptionByOp);
        const condValueRaw = exprOption[keyRaw];
        const condValueParsed = valueParser ? valueParser(condValueRaw) : condValueRaw;
        const evaluator = createFilterComparator(op, condValueParsed)
            || (op === 'reg' && new RegExpEvaluator(condValueParsed));

        if (!evaluator) {
            if (__DEV__) {
                errMsg = makePrintable(
                    'Illegal relational operation: "' + keyRaw + '" in condition:', exprOption
                );
            }
            throwError(errMsg);
        }

        subCondList.push(evaluator);
    }

    if (!subCondList.length) {
        if (__DEV__) {
            errMsg = makePrintable(
                'Relational condition must have at least one operator.',
                'Illegal condition:', exprOption
            );
        }
        // No relational operator always disabled in case of dangers result.
        throwError(errMsg);
    }

    const cond = new RelationalConditionInternal();
    cond.valueGetterParam = valueGetterParam;
    cond.valueParser = valueParser;
    cond.getValue = getters.getValue;
    cond.subCondList = subCondList;

    return cond;