//1publiccreate(resourceId:string):Status{...}//Incorrect override: Parameter type is changed//2publiccreate(resource:Resource):string{...}//Incorrect override: Return type is changed//3privatecreate(resource:Resource):Status{...}//Incorrect override: More restrictive access modifier//4publiccrea...
之后需要拿到当前类的所有方法名并过滤出 override 为 true 且不在父类中的进行报错。 constsuperClass = path.node.superClass;if(superClass) {constsuperClassPath = path.scope.getBinding(superClass.name).path;constallMethodNames = getAllClassMethodNames(superClassPath); path.traverse({ ClassMethod(path...
constsuperClass=path.node.superClass;if(superClass){constsuperClassPath=path.scope.getBinding(superClass.name).path;constallMethodNames=getAllClassMethodNames(superClassPath);path.traverse({ClassMethod(path){if(path.node.override){constmethodName=path.get('key').toString();constsuperClassName=superCla...
其实所有的修饰符,包括 override、public、static 等,在 parse 成 AST 后都是作为一个属性存在的,这个 override 也是,我们通过 astexplorer.net 来查看一下。 可以看到 override 属性为 true。这样我们就可以通过这个属性把该 class 的所有的需要 override 的 ClassMethod 过滤出来。 然后还可以拿到 ...
不好办。因为runtime的类型检查和编译时类型检查是很不一样的（可以上网去查下override和overload的差异...
当一个方法被标记为 override 时,TypeScript 将始终确保基类中存在一个具有相同名称的方法。 classSomeComponent{setVisible(value:boolean){// ...}}classSpecializedComponentextendsSomeComponent{overrideshow(){// ~~~// Error! This method can't be marked with 'override' because it's not declared in...
When a method is marked withoverride, TypeScript will always make sure that a method with the same name exists in a the base class. Copy classSomeComponent{setVisible(value:boolean){// ...}}classSpecializedComponentextendsSomeComponent{overrideshow(){// ~~~// Error! This method can't be...
class Child1 extends Parent { override method(x: number) { console.log(x.toFixed()); } } let parent: Parent; parent = new Child1(); // should be safe but isn't parent.method("abc"); // RUNTIME ERROR, x.toFixed is not a function class Child2 extends Parent { override method...
20. noImplicitOverride 请查看TypeScript 复习与进阶三部曲 (1) – Override Property/Method 21. exactOptionalPropertyTypes 请查看TypeScript 复习与进阶三部曲 (1) – Optional Property 22. strict 参考:"Strict Mode" TypeScript config options 它是一个 shortcut, 开启它的话代表一同开启几个严格模式. ...
When multiple classes inherit from a parent and override the same functionality, the result is polymorphism. Each of those child classes now implements a property or method, but they each may have their own way of performing that implementation. ...