public static bool TryGetAttribute(this SyntaxList<AttributeListSyntax> attributeLists, KnownType attributeKnownType,
SemanticModel semanticModel, out AttributeSyntax searchedAttribute)
{
searchedAttribute = null;
if (!attributeLists.Any())
{
return false;
}
foreach (var attribute in attributeLists.SelectMany(attributeList => attributeList.Attributes))
{
var attributeType = semanticModel.GetTypeInfo(attribute).Type;
if (attributeType.Is(attributeKnownType))
{
searchedAttribute = attribute;
return true;
}
}
return false;
}
public static bool Implements(this ITypeSymbol typeSymbol, KnownType type)
{
return typeSymbol != null &&
typeSymbol.AllInterfaces.Any(symbol => symbol.ConstructedFrom.Is(type));
}
public static bool IsType(this IParameterSymbol parameter, KnownType type)
{
return parameter != null && parameter.Type.Is(type);
}
public static bool IsInType(this ISymbol symbol, KnownType type)
{
return symbol != null && symbol.ContainingType.Is(type);
}
private static bool IsMatch(ITypeSymbol typeSymbol, KnownType type)
{
return type.Matches(typeSymbol.SpecialType) || type.Matches(typeSymbol.ToDisplayString());
}
public static bool Is(this ITypeSymbol typeSymbol, KnownType type)
{
return typeSymbol != null && IsMatch(typeSymbol, type);
}
public static bool DerivesFrom(this ITypeSymbol typeSymbol, KnownType type)
{
var currentType = typeSymbol;
while(currentType != null)
{
if (currentType.Is(type))
{
return true;
}
currentType = currentType.BaseType;
}
return false;
}
public static bool DerivesOrImplements(this ITypeSymbol type, KnownType baseType)
{
return type.Implements(baseType) ||
type.DerivesFrom(baseType);
}
public static bool IsInType(this ISymbol symbol, KnownType type)
{
return(symbol != null && symbol.ContainingType.Is(type));
}
public static bool Implements(this ITypeSymbol typeSymbol, KnownType type)
{
return(typeSymbol != null &&
typeSymbol.AllInterfaces.Any(symbol => symbol.ConstructedFrom.Is(type)));
}
public static bool IsType(this IParameterSymbol parameter, KnownType type)
{
return(parameter != null && parameter.Type.Is(type));
}
public static bool Is(this ITypeSymbol typeSymbol, KnownType type)
{
return(typeSymbol != null && IsMatch(typeSymbol, type));
}
private static bool IsMatch(ITypeSymbol typeSymbol, KnownType type)
{
return(type.Matches(typeSymbol.SpecialType) || type.Matches(typeSymbol.ToDisplayString()));
}
public static bool DerivesOrImplements(this ITypeSymbol type, KnownType baseType)
{
return(type.Implements(baseType) ||
type.DerivesFrom(baseType));
}
public static bool TryGetAttribute(this SyntaxList <AttributeListSyntax> attributeLists, KnownType attributeKnownType,
SemanticModel semanticModel, out AttributeSyntax searchedAttribute)
{
searchedAttribute = null;
if (!attributeLists.Any())
{
return(false);
}
foreach (var attribute in attributeLists.SelectMany(attributeList => attributeList.Attributes))
{
var attributeType = semanticModel.GetTypeInfo(attribute).Type;
if (attributeType.Is(attributeKnownType))
{
searchedAttribute = attribute;
return(true);
}
}
return(false);
}