Method isDateComparison

cmd/grv/expression_processor.go:415–442

(fieldTypeDescriptor FieldTypeDescriptor)

}

func (binaryExpression *BinaryExpression) isDateComparison(fieldTypeDescriptor FieldTypeDescriptor) (isDateComparison bool, dateString *StringLiteral, datePtr *Expression) {
	var identifier *Identifier
	var ok bool

	identifier, ok = binaryExpression.lhs.(*Identifier)

	if ok {
		dateString, _ = binaryExpression.rhs.(*StringLiteral)
		datePtr = &binaryExpression.rhs
	} else {
		dateString, _ = binaryExpression.lhs.(*StringLiteral)
		identifier, _ = binaryExpression.rhs.(*Identifier)
		datePtr = &binaryExpression.lhs
	}

	if identifier == nil || dateString == nil {
		return
	}

	fieldType, fieldExists := fieldTypeDescriptor.FieldType(identifier.identifier.value)
	if !fieldExists || fieldType != FtDate {
		return
	}

	isDateComparison = true

	return
}

func (binaryExpression *BinaryExpression) processGlobComparison(fieldTypeDescriptor FieldTypeDescriptor) (err error) {
	isGlobComparison, globString, globPtr := binaryExpression.isGlobComparison(fieldTypeDescriptor)