//Returns the valueClause of the return statement from SupportedDiagnostics and the return declaration, empty list if failed
private SuppDiagReturnSymbolInfo SuppDiagReturnSymbol(CompilationAnalysisContext context, SymbolInfo returnSymbolInfo, Location getAccessorKeywordLocation, PropertyDeclarationSyntax propertyDeclaration)
{
SuppDiagReturnSymbolInfo result = new SuppDiagReturnSymbolInfo();
ILocalSymbol returnSymbol = null;
if (returnSymbolInfo.CandidateSymbols.Count() == 0)
{
returnSymbol = returnSymbolInfo.Symbol as ILocalSymbol;
}
else
{
returnSymbol = returnSymbolInfo.CandidateSymbols[0] as ILocalSymbol;
}
if (returnSymbol == null)
{
ReportDiagnostic(context, IncorrectAccessorReturnRule, getAccessorKeywordLocation);
return result;
}
var variableDeclaration = returnSymbol.DeclaringSyntaxReferences[0].GetSyntax() as VariableDeclaratorSyntax;
ReturnStatementSyntax returnDeclaration = returnSymbol.DeclaringSyntaxReferences[0].GetSyntax() as ReturnStatementSyntax;
if (variableDeclaration == null)
{
ReportDiagnostic(context, IncorrectAccessorReturnRule, returnSymbol.Locations[0]);
return result;
}
var equalsValueClause = variableDeclaration.Initializer as EqualsValueClauseSyntax;
if (equalsValueClause == null)
{
ReportDiagnostic(context, IncorrectAccessorReturnRule, variableDeclaration.GetLocation());
return result;
}
var valueClause = equalsValueClause.Value as InvocationExpressionSyntax;
if (valueClause == null)
{
ReportDiagnostic(context, IncorrectAccessorReturnRule, variableDeclaration.GetLocation());
return result;
}
var valueClauseMemberAccess = valueClause.Expression as MemberAccessExpressionSyntax;
if (valueClauseMemberAccess == null)
{
ReportDiagnostic(context, IncorrectAccessorReturnRule, valueClause.GetLocation());
return result;
}
var valueClauseExpression = valueClauseMemberAccess.Expression as IdentifierNameSyntax;
if (valueClauseExpression == null || valueClauseExpression.Identifier.Text != "ImmutableArray")
{
ReportDiagnostic(context, IncorrectAccessorReturnRule, valueClause.GetLocation());
return result;
}
var valueClauseName = valueClauseMemberAccess.Name as IdentifierNameSyntax;
if (valueClauseName == null || valueClauseName.Identifier.Text != "Create")
{
ReportDiagnostic(context, SuppDiagReturnValueRule, valueClauseName.GetLocation(), propertyDeclaration.Identifier.Text);
return result;
}
result.ValueClause = valueClause;
result.ReturnDeclaration = returnDeclaration;
return result;
}
//returns the valueClause of the return statement from SupportedDiagnostics and the return declaration, empty list if failed
internal SuppDiagReturnSymbolInfo SuppDiagReturnSymbol(CompilationAnalysisContext context, SymbolInfo returnSymbolInfo, Location getAccessorKeywordLocation)
{
SuppDiagReturnSymbolInfo result = new SuppDiagReturnSymbolInfo();
ILocalSymbol returnSymbol = null;
if (returnSymbolInfo.CandidateSymbols.Count() == 0)
{
returnSymbol = returnSymbolInfo.Symbol as ILocalSymbol;
}
else
{
returnSymbol = returnSymbolInfo.CandidateSymbols[0] as ILocalSymbol;
}
if (returnSymbol == null)
{
ReportDiagnostic(context, IncorrectAccessorReturnRule, getAccessorKeywordLocation);
return result;
}
if (returnSymbol.Type.ToString() != "System.Collections.Immutable.ImmutableArray<Microsoft.CodeAnalysis.DiagnosticDescriptor>" && returnSymbol.Type.Kind.ToString() != "ErrorType")
{
ReportDiagnostic(context, IncorrectAccessorReturnRule, returnSymbol.Locations[0]);
return result;
}
var variableDeclaration = returnSymbol.DeclaringSyntaxReferences[0].GetSyntax() as VariableDeclaratorSyntax;
ReturnStatementSyntax returnDeclaration = returnSymbol.DeclaringSyntaxReferences[0].GetSyntax() as ReturnStatementSyntax;
if (variableDeclaration == null)
{
ReportDiagnostic(context, IncorrectAccessorReturnRule, returnSymbol.Locations[0]);
return result;
}
var equalsValueClause = variableDeclaration.Initializer as EqualsValueClauseSyntax;
if (equalsValueClause == null)
{
ReportDiagnostic(context, IncorrectAccessorReturnRule, returnDeclaration.ReturnKeyword.GetLocation());
return result;
}
var valueClause = equalsValueClause.Value as InvocationExpressionSyntax;
if (valueClause == null)
{
ReportDiagnostic(context, IncorrectAccessorReturnRule, returnDeclaration.GetLocation());
return result;
}
result.ValueClause = valueClause;
result.ReturnDeclaration = returnDeclaration;
return result;
}
