public override List <string> VisitIfElseBody([NotNull] LGFileParser.IfElseBodyContext context)
{
var ifRules = context.ifElseTemplateBody().ifConditionRule();
foreach (var ifRule in ifRules)
{
if (EvalCondition(ifRule.ifCondition()) && ifRule.normalTemplateBody() != null)
{
return(Visit(ifRule.normalTemplateBody()));
}
}
return(null);
}
public override AnalyzerResult VisitIfElseBody([NotNull] LGFileParser.IfElseBodyContext context)
{
var result = new AnalyzerResult();
var ifRules = context.ifElseTemplateBody().ifConditionRule();
foreach (var ifRule in ifRules)
{
var expression = ifRule.ifCondition().EXPRESSION(0);
if (expression != null)
{
result.Union(AnalyzeExpression(expression.GetText()));
}
if (ifRule.normalTemplateBody() != null)
{
result.Union(Visit(ifRule.normalTemplateBody()));
}
}
return(result);
}
public override List <Diagnostic> VisitIfElseBody([NotNull] LGFileParser.IfElseBodyContext context)
{
var result = new List <Diagnostic>();
var ifRules = context.ifElseTemplateBody().ifConditionRule();
for (var idx = 0; idx < ifRules.Length; idx++)
{
var conditionNode = ifRules[idx].ifCondition();
var ifExpr = conditionNode.IF() != null;
var elseIfExpr = conditionNode.ELSEIF() != null;
var elseExpr = conditionNode.ELSE() != null;
var node = ifExpr ? conditionNode.IF() :
elseIfExpr?conditionNode.ELSEIF() :
conditionNode.ELSE();
if (node.GetText().Count(u => u == ' ') > 1)
{
result.Add(BuildLGDiagnostic(LGErrors.InvalidWhitespaceInCondition, context: conditionNode));
}
if (idx == 0 && !ifExpr)
{
result.Add(BuildLGDiagnostic(LGErrors.NotStartWithIfInCondition, DiagnosticSeverity.Warning, conditionNode));
}
if (idx > 0 && ifExpr)
{
result.Add(BuildLGDiagnostic(LGErrors.MultipleIfInCondition, context: conditionNode));
}
if (idx == ifRules.Length - 1 && !elseExpr)
{
result.Add(BuildLGDiagnostic(LGErrors.NotEndWithElseInCondition, DiagnosticSeverity.Warning, conditionNode));
}
if (idx > 0 && idx < ifRules.Length - 1 && !elseIfExpr)
{
result.Add(BuildLGDiagnostic(LGErrors.InvalidMiddleInCondition, context: conditionNode));
}
// check rule should should with one and only expression
if (!elseExpr)
{
if (ifRules[idx].ifCondition().EXPRESSION().Length != 1)
{
result.Add(BuildLGDiagnostic(LGErrors.InvalidExpressionInCondition, context: conditionNode));
}
else
{
result.AddRange(CheckExpression(ifRules[idx].ifCondition().EXPRESSION(0).GetText(), conditionNode));
}
}
else
{
if (ifRules[idx].ifCondition().EXPRESSION().Length != 0)
{
result.Add(BuildLGDiagnostic(LGErrors.ExtraExpressionInCondition, context: conditionNode));
}
}
if (ifRules[idx].normalTemplateBody() != null)
{
result.AddRange(Visit(ifRules[idx].normalTemplateBody()));
}
else
{
result.Add(BuildLGDiagnostic(LGErrors.MissingTemplateBodyInCondition, context: conditionNode));
}
}
return(result);
}
public override List <Diagnostic> VisitIfElseBody([NotNull] LGFileParser.IfElseBodyContext context)
{
var result = new List <Diagnostic>();
var ifRules = context.ifElseTemplateBody().ifConditionRule();
for (var idx = 0; idx < ifRules.Length; idx++)
{
var conditionNode = ifRules[idx].ifCondition();
var ifExpr = conditionNode.IF() != null;
var elseIfExpr = conditionNode.ELSEIF() != null;
var elseExpr = conditionNode.ELSE() != null;
var node = ifExpr ? conditionNode.IF() :
elseIfExpr?conditionNode.ELSEIF() :
conditionNode.ELSE();
if (node.GetText().Count(u => u == ' ') > 1)
{
result.Add(BuildLGDiagnostic($"At most 1 whitespace is allowed between IF/ELSEIF/ELSE and :", context: conditionNode));
}
if (idx == 0 && !ifExpr)
{
result.Add(BuildLGDiagnostic($"condition is not start with if", DiagnosticSeverity.Warning, conditionNode));
}
if (idx > 0 && ifExpr)
{
result.Add(BuildLGDiagnostic($"condition can't have more than one if", context: conditionNode));
}
if (idx == ifRules.Length - 1 && !elseExpr)
{
result.Add(BuildLGDiagnostic($"condition is not end with else", DiagnosticSeverity.Warning, conditionNode));
}
if (idx > 0 && idx < ifRules.Length - 1 && !elseIfExpr)
{
result.Add(BuildLGDiagnostic($"only elseif is allowed in middle of condition", context: conditionNode));
}
// check rule should should with one and only expression
if (!elseExpr)
{
if (ifRules[idx].ifCondition().EXPRESSION().Length != 1)
{
result.Add(BuildLGDiagnostic($"if and elseif should followed by one valid expression", context: conditionNode));
}
else
{
result.AddRange(CheckExpression(ifRules[idx].ifCondition().EXPRESSION(0).GetText(), conditionNode));
}
}
else
{
if (ifRules[idx].ifCondition().EXPRESSION().Length != 0)
{
result.Add(BuildLGDiagnostic($"else should not followed by any expression", context: conditionNode));
}
}
if (ifRules[idx].normalTemplateBody() != null)
{
result.AddRange(Visit(ifRules[idx].normalTemplateBody()));
}
else
{
result.Add(BuildLGDiagnostic($"no normal template body in condition block", context: conditionNode));
}
}
return(result);
}