internal Extensions(AnalyzerFileReference reference, AttributePredicate attributePredicate)
{
_reference = reference;
_attributePredicate = attributePredicate;
_lazyAllExtensions = default(ImmutableArray <TExtension>);
_lazyExtensionsPerLanguage = ImmutableDictionary <string, ImmutableArray <TExtension> > .Empty;
}
internal Extensions(AnalyzerFileReference reference, AttributePredicate attributePredicate, AttributeLanguagesFunc languagesFunc, bool allowNetFramework)
{
_reference = reference;
_attributePredicate = attributePredicate;
_languagesFunc = languagesFunc;
_allowNetFramework = allowNetFramework;
_lazyAllExtensions = default;
_lazyExtensionsPerLanguage = ImmutableDictionary <string, ImmutableArray <TExtension> > .Empty;
}
private static IEnumerable <string> GetSupportedLanguages(TypeDefinition typeDef, PEModule peModule, AttributePredicate attributePredicate)
{
IEnumerable <IEnumerable <string> > attributeLanguagesList = from customAttrHandle in typeDef.GetCustomAttributes()
where attributePredicate(peModule, customAttrHandle)
let attributeSupportedLanguages = GetSupportedLanguages(peModule, customAttrHandle)
where attributeSupportedLanguages != null
select attributeSupportedLanguages;
return(attributeLanguagesList.SelectMany(x => x));
}
/// <summary>
/// Opens the analyzer dll with the metadata reader and builds a map of language -> analyzer type names.
/// </summary>
/// <exception cref="BadImageFormatException">The PE image format is invalid.</exception>
/// <exception cref="IOException">IO error reading the metadata.</exception>
private static ImmutableDictionary <string, ImmutableHashSet <string> > GetAnalyzerTypeNameMap(string fullPath, AttributePredicate attributePredicate)
{
using (AssemblyMetadata assembly = AssemblyMetadata.CreateFromFile(fullPath))
{
IEnumerable <IGrouping <string, string> > typeNameMap = from module in assembly.GetModules()
from typeDefHandle in module.MetadataReader.TypeDefinitions
let typeDef = module.MetadataReader.GetTypeDefinition(typeDefHandle)
let typeName = GetFullyQualifiedTypeName(typeDef, module.Module)
from supportedLanguage in GetSupportedLanguages(typeDef, module.Module, attributePredicate)
group typeName by supportedLanguage;
return(typeNameMap.ToImmutableDictionary(g => g.Key, g => g.ToImmutableHashSet()));
}
}
private static ImmutableDictionary <string, ImmutableHashSet <string> > GetAnalyzerTypeNameMap(string fullPath, AttributePredicate attributePredicate)
{
using (var assembly = AssemblyMetadata.CreateFromFile(fullPath))
{
// This is longer than strictly necessary to avoid thrashing the GC with string allocations
// in the call to GetFullyQualifiedTypeNames. Specifically, this checks for the presence of
// supported languages prior to creating the type names.
var typeNameMap = from module in assembly.GetModules()
from typeDefHandle in module.MetadataReader.TypeDefinitions
let typeDef = module.MetadataReader.GetTypeDefinition(typeDefHandle)
let supportedLanguages = GetSupportedLanguages(typeDef, module.Module, attributePredicate)
where supportedLanguages.Any()
let typeName = GetFullyQualifiedTypeName(typeDef, module.Module)
from supportedLanguage in supportedLanguages
group typeName by supportedLanguage;
return(typeNameMap.ToImmutableDictionary(g => g.Key, g => g.ToImmutableHashSet()));
}
}
