本文整理汇总了C#中System.Compiler.Class.GetAttribute方法的典型用法代码示例。如果您正苦于以下问题：C# Class.GetAttribute方法的具体用法？C# Class.GetAttribute怎么用？C# Class.GetAttribute使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Compiler.Class的用法示例。
在下文中一共展示了Class.GetAttribute方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: ImmutabilityChecksOnClasses
private void ImmutabilityChecksOnClasses(Class Class) {
if (Class == null) return;
TypeNode baseType = Class.BaseType;
bool classIsImmutable = Class.GetAttribute(SystemTypes.ImmutableAttribute) != null;
String ClassName = Class.Name.ToString();
if (baseType != null) { // otherwise, there are other errors.
// A class _can_ be declared [Immutable] iff its superclass is immutable or if its superclass is System.Object.
if (classIsImmutable &&
baseType != SystemTypes.Object &&
baseType.GetAttribute(SystemTypes.ImmutableAttribute) == null)
this.HandleError(Class.Name, Error.ImmutableHasMutableBase, ClassName, baseType.Name.ToString());
// A class _must_ be declared [Immutable] if its superclass is immutable (except if superclass is Object)
if (!classIsImmutable &&
baseType != SystemTypes.Object &&
baseType.GetAttribute(SystemTypes.ImmutableAttribute) != null)
this.HandleError(Class.Name, Error.MutableHasImmutableBase, ClassName, baseType.Name.ToString());
}
foreach (Member mem in Class.Members) {
Field f = mem as Field;
if (f == null) continue;
// An immutable class cannot have peer fields
if (classIsImmutable && f.IsPeer)
this.HandleError(mem.Name, Error.ImmutableClassHasPeerField, ClassName, mem.ToString());
// Peer fields and rep fields cannot be of immutable type
if ((f.IsOwned || f.IsPeer) && f.Type.GetAttribute(SystemTypes.ImmutableAttribute) != null)
this.HandleError(mem.Name, Error.RepOrPeerFieldImmutable, ClassName, mem.ToString());
}
// In constructors of immutable classes, base() must be called as the very last statement
if (classIsImmutable) {
MemberList constructors = Class.GetConstructors();
foreach (Member constructor in constructors) {
if (constructor is InstanceInitializer && ((InstanceInitializer)constructor).IsCompilerGenerated) continue;
if (constructor.GetAttribute(ExtendedRuntimeTypes.NotDelayedAttribute) == null) continue;
StatementList stmts = ((Method)constructor).Body.Statements;
if (stmts == null) { continue; }
Statement lastStmt = stmts[stmts.Count - 1];
if (lastStmt is Block) {
stmts = ((Block)lastStmt).Statements;
lastStmt = stmts[stmts.Count - 1];
}
// last stmt must be base() or this()
bool error = false;
if (!(lastStmt is ExpressionStatement)) error = true;
else {
Expression exp = ((ExpressionStatement)lastStmt).Expression;
if (!(exp is MethodCall)) error = true;
else {
Expression callee = ((MethodCall)exp).Callee;
if (callee == null || !(callee is MemberBinding)) error = true;
else {
Member mb = ((MemberBinding)callee).BoundMember;
if (mb == null || !(mb is InstanceInitializer) ||
!(Class.BaseClass == ((InstanceInitializer)mb).DeclaringType ||
Class == ((InstanceInitializer)mb).DeclaringType)) {
error = true;
}
}
}
}
if (error)
this.HandleError(constructor.Name, Error.ImmutableConstructorLastStmtMustBeBaseOrThis, ClassName);
// other stmts may not be base
for (int i = 0; i < stmts.Count - 1; i++) {
if (!(stmts[i] is ExpressionStatement)) continue;
Expression exp = ((ExpressionStatement)stmts[i]).Expression;
if (!(exp is MethodCall)) continue;
Expression callee = ((MethodCall)exp).Callee;
if (callee == null || !(callee is MemberBinding)) continue;
Member mb = ((MemberBinding)callee).BoundMember;
if (mb != null && mb is InstanceInitializer && Class.BaseClass == ((InstanceInitializer)mb).DeclaringType) {
this.HandleError(constructor.Name, Error.ImmutableConstructorBaseNotLast, ClassName);
break;
}
}
}
}
// An immutable interface can only be implemented by an immutable class
foreach (Interface iface in Class.Interfaces) {
if (iface == null) continue;
if (iface.GetAttribute(SystemTypes.ImmutableAttribute) != null && !classIsImmutable)
this.HandleError(Class.Name, Error.ImmutableIfaceImplementedByMutableClass, ClassName, iface.Name.ToString());
}
}