internal ConditionalExpression CreateRelationCondition(CodeElementsParser.RelationConditionContext context)
{
ConditionOperand subjectOperand = CreateConditionOperand(context.conditionOperand());
SyntaxProperty<RelationalOperator> relationalOperator = CreateRelationalOperator(context.relationalOperator());
return CreateAbbreviatedExpression(subjectOperand, relationalOperator, context.abbreviatedExpression());
}
internal ConditionalExpression CreateSignCondition(CodeElementsParser.SignConditionContext context)
{
SyntaxProperty<bool> invertResult = null;
if (context.NOT() != null)
{
invertResult = new SyntaxProperty<bool>(
true,
ParseTreeUtils.GetFirstToken(context.NOT()));
}
SyntaxProperty<SignComparison> signComparison = null;
if(context.POSITIVE() != null)
{
signComparison = new SyntaxProperty<SignComparison>(
SignComparison.Positive,
ParseTreeUtils.GetFirstToken(context.POSITIVE()));
}
else if (context.NEGATIVE() != null)
{
signComparison = new SyntaxProperty<SignComparison>(
SignComparison.Negative,
ParseTreeUtils.GetFirstToken(context.NEGATIVE()));
}
else if (context.ZERO() != null)
{
signComparison = new SyntaxProperty<SignComparison>(
SignComparison.Zero,
ParseTreeUtils.GetFirstToken(context.ZERO()));
}
return new SignCondition(
CreateConditionOperand(context.conditionOperand()),
signComparison,
invertResult);
}
private ConditionalExpression CreateAbbreviatedExpression(ConditionOperand subjectOperand, SyntaxProperty<RelationalOperator> distributedRelationalOperator, CodeElementsParser.AbbreviatedExpressionContext context)
{
if (context.conditionOperand() != null)
{
ConditionOperand objectOperand = CreateConditionOperand(context.conditionOperand());
SyntaxProperty<RelationalOperator> relationalOperator = distributedRelationalOperator;
if (context.relationalOperator() != null)
{
relationalOperator = CreateRelationalOperator(context.relationalOperator());
}
return new RelationCondition(subjectOperand, relationalOperator, objectOperand);
}
else
{
SyntaxProperty<LogicalOperator> logicalOperator = null;
if (context.NOT() != null)
{
logicalOperator = new SyntaxProperty<LogicalOperator>(
LogicalOperator.NOT,
ParseTreeUtils.GetFirstToken(context.NOT()));
}
else if (context.AND() != null)
{
logicalOperator = new SyntaxProperty<LogicalOperator>(
LogicalOperator.AND,
ParseTreeUtils.GetFirstToken(context.AND()));
}
else if (context.OR() != null)
{
logicalOperator = new SyntaxProperty<LogicalOperator>(
LogicalOperator.OR,
ParseTreeUtils.GetFirstToken(context.OR()));
}
if (logicalOperator == null)
{
return CreateAbbreviatedExpression(subjectOperand, distributedRelationalOperator, context.abbreviatedExpression()[0]);
}
else
{
if (context.abbreviatedExpression().Length == 1)
{
ConditionalExpression rightOperand = CreateAbbreviatedExpression(subjectOperand, distributedRelationalOperator, context.abbreviatedExpression()[0]);
return new LogicalOperation(null, logicalOperator, rightOperand);
}
else
{
ConditionalExpression leftOperand = CreateAbbreviatedExpression(subjectOperand, distributedRelationalOperator, context.abbreviatedExpression()[0]);
ConditionalExpression rightOperand = CreateAbbreviatedExpression(subjectOperand, distributedRelationalOperator, context.abbreviatedExpression()[1]);
return new LogicalOperation(leftOperand, logicalOperator, rightOperand);
}
}
}
}
