/// <summary>
/// Creates a new instance of the safe field wrapper.
/// </summary>
/// <param name="field">Field to wrap.</param>
public SafeField(FieldInfo field)
{
AssertUtils.ArgumentNotNull(field, "You cannot create a dynamic field for a null value.");
this.fieldInfo = field;
this.canSet = (!fieldInfo.IsLiteral &&
!fieldInfo.IsInitOnly &&
!(fieldInfo.DeclaringType.IsValueType && !fieldInfo.IsStatic));
if (fieldInfo.IsPublic &&
ReflectionUtils.IsTypeVisible(fieldInfo.DeclaringType, DynamicReflectionManager.ASSEMBLY_NAME))
{
dynamicField = DynamicField.Create(fieldInfo);
isOptimizedGet = isOptimizedSet = true;
}
}
/// <summary>
/// Returns a <see cref="IDynamicField"/> implementation
/// by determining the fastest possible dynamic access strategy
/// </summary>
/// <param name="field">the field to be wrapped</param>
/// <returns>an <see cref="IDynamicField"/> instance for accessing the
/// field represented by the given <see cref="FieldInfo"/></returns>
public static IDynamicField CreateFrom(FieldInfo field)
{
AssertUtils.ArgumentNotNull(field, "You cannot create a dynamic field for a null value.");
IDynamicField dynamicField;
if (field.IsPublic &&
ReflectionUtils.IsTypeVisible(field.DeclaringType, DynamicReflectionManager.ASSEMBLY_NAME))
{
dynamicField = DynamicField.Create(field);
}
else
{
dynamicField = new SafeField(field);
}
return(dynamicField);
}
protected static object GetVisualBasicTestObject()
{
if (s__visualBasicTestObjectType == null)
{
// compile vb test class
string vbSourceCode = new StreamReader(Assembly.GetExecutingAssembly().GetManifestResourceStream(typeof(BasePropertyTests), "SafePropertyTests_TestObject.vb")).ReadToEnd();
CompilerParameters args = new CompilerParameters();
args.OutputAssembly = "VbTestObject.dll";
args.GenerateInMemory = true;
args.GenerateExecutable = false;
args.IncludeDebugInformation = true;
#if NET_2_0
CodeDomProvider provider = CodeDomProvider.CreateProvider("VisualBasic");
CompilerResults results = provider.CompileAssemblyFromSource(args, vbSourceCode);
#else
CodeDomProvider provider = new VBCodeProvider();
ICodeCompiler compiler = provider.CreateCompiler();
CompilerResults results = compiler.CompileAssemblyFromSource(args, vbSourceCode);
#endif
if (results.Errors.HasErrors)
{
StringBuilder sb = new StringBuilder();
foreach (CompilerError error in results.Errors)
{
sb.Append(error.ToString()).Append("\n\r");
}
throw new TypeLoadException("failed compiling test class: " + sb);
}
s__visualBasicTestObjectType = results.CompiledAssembly.GetType("VbTestObject");
ThisLastPropertyValue = DynamicField.Create(s__visualBasicTestObjectType.GetField("ThisLastPropertyValue"));
ThisArg1 = DynamicField.Create(s__visualBasicTestObjectType.GetField("ThisArg1"));
ThisArg2 = DynamicField.Create(s__visualBasicTestObjectType.GetField("ThisArg2"));
ThisOptionalArg = DynamicField.Create(s__visualBasicTestObjectType.GetField("ThisOptionalArg"));
ThisParamsArg = DynamicField.Create(s__visualBasicTestObjectType.GetField("ThisParamsArgs"));
}
object s__visualBasicTestObject = Activator.CreateInstance(s__visualBasicTestObjectType);
return(s__visualBasicTestObject);
}
protected virtual IDynamicField Create(FieldInfo field)
{
return(DynamicField.Create(field));
}