115 lines
1.7 KiB
TypeScript
115 lines
1.7 KiB
TypeScript
// Class with protected members
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class C1 {
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protected x: number;
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protected static sx: number;
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protected f() {
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return this.x;
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}
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protected static sf() {
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return this.sx;
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}
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}
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// Derived class accessing protected members
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class C2 extends C1 {
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protected f() {
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return super.f() + this.x;
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}
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protected static sf() {
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return super.sf() + this.sx;
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}
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}
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// Derived class making protected members public
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class C3 extends C2 {
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x: number;
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static sx: number;
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f() {
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return super.f();
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}
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static sf() {
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return super.sf();
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}
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}
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var c1: C1;
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var c2: C2;
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var c3: C3;
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// All of these should be errors
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c1.x;
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c1.f();
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C1.sx;
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C1.sf();
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// All of these should be errors
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c2.x;
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c2.f();
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C2.sx;
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C2.sf();
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// All of these should be ok
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c3.x;
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c3.f();
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C3.sx;
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C3.sf();
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class A {
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protected x;
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}
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class B extends A {
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y;
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}
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class C extends A {
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z;
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static foo(a: A, b: B, c: C, d: D, e: E) {
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a.x = 1; // Error, access must be through C or type derived from C
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b.x = 1; // Error, access must be through C or type derived from C
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c.x = 1;
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d.x = 1;
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e.x = 1;
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}
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}
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class D extends C {
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d;
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}
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interface E extends C {
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e;
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}
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class CC {
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protected constructor() {
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}
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}
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class A1 {
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protected x;
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}
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class B1 {
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x;
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}
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var a1: A1;
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var b1: B1;
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a1 = b1; // Error, B1 doesn't derive from A1
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b1 = a1; // Error, x is protected in A1 but public in B1
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class A2 {
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protected x;
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}
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class B2 extends A2 {
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x;
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}
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class A3 {
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x;
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}
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// Error x is protected in B3 but public in A3
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class B3 extends A3 {
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protected x;
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}
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