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package rba.tool.editor.validation.validators
import org.eclipse.xtext.validation.Check
import org.eclipse.xtext.validation.EValidatorRegistrar
import rba.core.ExpressionType
import rba.core.IfStatement
import rba.core.RBACorePackage
import rba.tool.editor.messages.Messages
import rba.tool.editor.validation.AbstractRBAModelValidator
/**
* This class contains custom validation rules.
*
* See https://www.eclipse.org/Xtext/documentation/303_runtime_concepts.html#validation
*/
class IfStatementValidator extends AbstractRBAModelValidator {
private String CONDITION_BOOLEAN_TYPE_CHECK = Messages.CONDITION_BOOLEAN_TYPE_CHECK;
private String CONDITION_TPYE_EQUAL_CHECK = Messages.CONDITION_TPYE_EQUAL_CHECK;
override register(EValidatorRegistrar registrar) {
// not needed for classes used as ComposedCheck
}
@Check(NORMAL)
def checkIfStatement(IfStatement ifStatement) {
if (ifStatement.condition.type !== ExpressionType.BOOLEAN) {
error(CONDITION_BOOLEAN_TYPE_CHECK, RBACorePackage.Literals.IF_STATEMENT__CONDITION);
return;
}
if (!isExpressionTypeEquals(ifStatement.thenExpression.type, ifStatement.elseExpression.type)) {
error(CONDITION_TPYE_EQUAL_CHECK, RBACorePackage.Literals.IF_STATEMENT__ELSE_EXPRESSION);
return;
}
}
def boolean isExpressionTypeEquals(ExpressionType type1, ExpressionType type2) {
if (type1 === type2) {
return true;
}
return false
}
}
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