private ArrayHasher(HasherResolver resolver, IConfigurationProvider configuration, IVariable variable)
{
_variable = variable;
_arrayHashEmitter = new ArrayHashEmitter(resolver, variable);
_configuration = configuration.Get(variable.OwnerType);
_hasCustomComparer = configuration.HasCustomComparer(variable.VariableType.GetElementType());
}
public static NullableHasher Create(HasherResolver resolver, IVariable variable)
{
if (variable.VariableType.IsNullable())
{
return(new NullableHasher(resolver, variable));
}
return(null);
}
public static ArrayHasher Create(HasherResolver resolver, IConfigurationProvider configuration, IVariable variable)
{
var variableType = variable.VariableType;
if (variableType.IsArray && variableType.GetArrayRank() == 1)
{
return(new ArrayHasher(resolver, configuration, variable));
}
return(null);
}
public static EnumerablesHasher Create(HasherResolver resolver, IConfigurationProvider configuration, IVariable variable)
{
var variableType = variable.VariableType;
if (variableType.ImplementsGenericInterface(typeof(IEnumerable <>)) && !variableType.IsArray)
{
return(new EnumerablesHasher(resolver, configuration, variable));
}
return(null);
}
private MembersHasher(
HasherResolver resolver,
MembersProvider membersProvider,
IConfigurationProvider configuration,
IVariable variable)
{
_variable = variable;
_resolver = resolver;
_membersProvider = membersProvider;
_configuration = configuration;
}
public static MembersHasher Create(
HasherResolver resolver,
MembersProvider membersProvider,
IConfigurationProvider configuration,
IVariable variable)
{
if (variable.VariableType == typeof(object) || !variable.VariableType.IsHierarchical() || !(variable is ArgumentVariable))
{
return(null);
}
return(new MembersHasher(resolver, membersProvider, configuration, variable));
}
private EnumerablesHasher(HasherResolver resolver, IConfigurationProvider configuration, IVariable variable)
{
_resolver = resolver;
_configuration = configuration;
_variable = variable;
var variableType = variable.VariableType;
_elementType = variableType
.FindGenericInterface(typeof(IEnumerable <>))
.GetGenericArguments()
.Single();
_getEnumeratorMethod = variableType.FindMethod(nameof(IEnumerable.GetEnumerator), Type.EmptyTypes);
_enumeratorType = _getEnumeratorMethod.ReturnType;
_moveNextMethod = _enumeratorType.FindMethod(nameof(IEnumerator.MoveNext), Type.EmptyTypes);
_getCurrentMethod = _enumeratorType.GetPropertyGetter(nameof(IEnumerator.Current));
_arrayHashEmitter = new ArrayHashEmitter(resolver, variable);
}
public ArrayHashEmitter(HasherResolver resolver, IVariable variable)
{
_resolver = resolver;
_variable = variable;
}
private NullableHasher(HasherResolver resolver, IVariable variable)
{
_resolver = resolver;
_variable = variable;
_hasValueMethod = _variable.VariableType.GetPropertyGetter("HasValue");
}
