public override AstVisitAction VisitTypeDefinition(TypeDefinitionAst typeDefinitionAst)
{
// Look for 'class MyClass { ... }' and 'enum MyEnum { ... }' definitions
if (!_targetVersions.Contains(s_v3) && !_targetVersions.Contains(s_v4))
{
return(AstVisitAction.Continue);
}
string message = string.Format(
CultureInfo.CurrentCulture,
Strings.UseCompatibleSyntaxError,
"type definition",
"class MyClass { ... } | enum MyEnum { ... }",
"3,4");
_diagnosticAccumulator.Add(
new DiagnosticRecord(
message,
typeDefinitionAst.Extent,
_rule.GetName(),
_rule.Severity,
_analyzedFilePath
));
return(AstVisitAction.Continue);
}
public override AstVisitAction VisitMemberExpression(MemberExpressionAst memberExpressionAst)
{
if (!_targetVersions.Contains(s_v3))
{
return(AstVisitAction.Continue);
}
if (!(memberExpressionAst.Member is StringConstantExpressionAst))
{
string message = string.Format(
CultureInfo.CurrentCulture,
Strings.UseCompatibleSyntaxError,
"dynamic member invocation",
memberExpressionAst.Extent.Text,
"3");
_diagnosticAccumulator.Add(new DiagnosticRecord(
message,
memberExpressionAst.Extent,
_rule.GetName(),
_rule.Severity,
_analyzedFilePath
));
}
return(AstVisitAction.Continue);
}
public override AstVisitAction VisitInvokeMemberExpression(InvokeMemberExpressionAst methodCallAst)
{
// Look for [typename]::new(...) and [typename]::$dynamicMethodName syntax
if (!_targetVersions.Contains(s_v3) && !_targetVersions.Contains(s_v4))
{
return(AstVisitAction.Continue);
}
if (_targetVersions.Contains(s_v3) && methodCallAst.Member is VariableExpressionAst)
{
string message = string.Format(
CultureInfo.CurrentCulture,
Strings.UseCompatibleSyntaxError,
"dynamic method invocation",
methodCallAst.Extent.Text,
"3");
_diagnosticAccumulator.Add(new DiagnosticRecord(
message,
methodCallAst.Extent,
_rule.GetName(),
_rule.Severity,
_analyzedFilePath
));
}
if (!(methodCallAst.Expression is TypeExpressionAst typeExpressionAst))
{
return(AstVisitAction.Continue);
}
if (!(methodCallAst.Member is StringConstantExpressionAst stringConstantAst))
{
return(AstVisitAction.Continue);
}
if (stringConstantAst.Value.Equals("new", StringComparison.OrdinalIgnoreCase))
{
string typeName = typeExpressionAst.TypeName.FullName;
CorrectionExtent suggestedCorrection = CreateNewObjectCorrection(
_analyzedFilePath,
methodCallAst.Extent,
typeName,
methodCallAst.Arguments);
string message = string.Format(
CultureInfo.CurrentCulture,
Strings.UseCompatibleSyntaxError,
"constructor",
methodCallAst.Extent.Text,
"3,4");
_diagnosticAccumulator.Add(new DiagnosticRecord(
message,
methodCallAst.Extent,
_rule.GetName(),
_rule.Severity,
_analyzedFilePath,
ruleId: null,
suggestedCorrections: new [] { suggestedCorrection }
));
return(AstVisitAction.Continue);
}
return(AstVisitAction.Continue);
}
