55 lines
1.4 KiB
Plaintext
55 lines
1.4 KiB
Plaintext
==== tests/cases/compiler/interfaceInheritance.ts (4 errors) ====
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interface I1 {
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i1P1: number;
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i1P2(): void;
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}
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interface I2 extends I1 {
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i2P1: string;
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}
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interface I3 {
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i2P1: string; // has a member from i2P1, but not from I1
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}
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interface I4 {
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one: number;
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}
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interface I5 {
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one: string;
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}
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class C1 implements I2 { // should be an error - it doesn't implement the members of I1
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~~
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!!! Class 'C1' incorrectly implements interface 'I2':
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!!! Property 'i1P1' is missing in type 'C1'.
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public i2P1: string;
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}
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var i2: I2;
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var i1: I1;
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var i3: I3;
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i1 = i2;
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i2 = i3; // should be an error - i3 does not implement the members of i1
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~~
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!!! Type 'I3' is not assignable to type 'I2':
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!!! Property 'i1P1' is missing in type 'I3'.
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var c1: C1;
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var i4: I4;
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var i5: I5;
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i4 = i5; // should be an error
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~~
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!!! Type 'I5' is not assignable to type 'I4':
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!!! Types of property 'one' are incompatible:
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!!! Type 'string' is not assignable to type 'number'.
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i5 = i4; // should be an error
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~~
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!!! Type 'I4' is not assignable to type 'I5':
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!!! Types of property 'one' are incompatible:
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!!! Type 'number' is not assignable to type 'string'.
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