2b8342bd79
If each type in U has call signatures and the sets of call signatures are identical ignoring return types, U has the same set of call signatures, but with return types that are unions of the return types of the respective call signatures from each type in U.
133 lines
7.9 KiB
JavaScript
133 lines
7.9 KiB
JavaScript
//// [unionTypeCallSignatures.ts]
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var numOrDate: number | Date;
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var strOrBoolean: string | boolean;
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var strOrNum: string | number;
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// If each type in U has call signatures and the sets of call signatures are identical ignoring return types,
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// U has the same set of call signatures, but with return types that are unions of the return types of the respective call signatures from each type in U.
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var unionOfDifferentReturnType: { (a: number): number; } | { (a: number): Date; };
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numOrDate = unionOfDifferentReturnType(10);
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strOrBoolean = unionOfDifferentReturnType("hello"); // error
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unionOfDifferentReturnType1(true); // error in type of parameter
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var unionOfDifferentReturnType1: { (a: number): number; (a: string): string; } | { (a: number): Date; (a: string): boolean; };
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numOrDate = unionOfDifferentReturnType1(10);
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strOrBoolean = unionOfDifferentReturnType1("hello");
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unionOfDifferentReturnType1(true); // error in type of parameter
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unionOfDifferentReturnType1(); // error missing parameter
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var unionOfDifferentParameterTypes: { (a: number): number; } | { (a: string): Date; };
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unionOfDifferentParameterTypes(10);// error - no call signatures
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unionOfDifferentParameterTypes("hello");// error - no call signatures
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unionOfDifferentParameterTypes();// error - no call signatures
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var unionOfDifferentNumberOfSignatures: { (a: number): number; } | { (a: number): Date; (a: string): boolean; };
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unionOfDifferentNumberOfSignatures(); // error - no call signatures
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unionOfDifferentNumberOfSignatures(10); // error - no call signatures
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unionOfDifferentNumberOfSignatures("hello"); // error - no call signatures
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var unionWithDifferentParameterCount: { (a: string): string; } | { (a: string, b: number): number; } ;
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unionWithDifferentParameterCount();// no call signature
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unionWithDifferentParameterCount("hello");// no call signature
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unionWithDifferentParameterCount("hello", 10);// no call signature
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var unionWithOptionalParameter1: { (a: string, b?: number): string; } | { (a: string, b?: number): number; };
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strOrNum = unionWithOptionalParameter1('hello');
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strOrNum = unionWithOptionalParameter1('hello', 10);
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strOrNum = unionWithOptionalParameter1('hello', "hello"); // error in parameter type
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strOrNum = unionWithOptionalParameter1(); // error
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var unionWithOptionalParameter2: { (a: string, b?: number): string; } | { (a: string, b: number): number };
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strOrNum = unionWithOptionalParameter2('hello'); // error no call signature
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strOrNum = unionWithOptionalParameter2('hello', 10); // error no call signature
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strOrNum = unionWithOptionalParameter2('hello', "hello"); // error no call signature
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strOrNum = unionWithOptionalParameter2(); // error no call signature
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var unionWithOptionalParameter3: { (a: string, b?: number): string; } | { (a: string): number; };
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strOrNum = unionWithOptionalParameter3('hello'); // error no call signature
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strOrNum = unionWithOptionalParameter3('hello', 10); // error no call signature
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strOrNum = unionWithOptionalParameter3('hello', "hello"); // error no call signature
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strOrNum = unionWithOptionalParameter3(); // error no call signature
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var unionWithRestParameter1: { (a: string, ...b: number[]): string; } | { (a: string, ...b: number[]): number };
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strOrNum = unionWithRestParameter1('hello');
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strOrNum = unionWithRestParameter1('hello', 10);
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strOrNum = unionWithRestParameter1('hello', 10, 11);
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strOrNum = unionWithRestParameter1('hello', "hello"); // error in parameter type
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strOrNum = unionWithRestParameter1(); // error
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var unionWithRestParameter2: { (a: string, ...b: number[]): string; } | { (a: string, b: number): number };
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strOrNum = unionWithRestParameter2('hello'); // error no call signature
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strOrNum = unionWithRestParameter2('hello', 10); // error no call signature
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strOrNum = unionWithRestParameter2('hello', 10, 11); // error no call signature
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strOrNum = unionWithRestParameter2('hello', "hello"); // error no call signature
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strOrNum = unionWithRestParameter2(); // error no call signature
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var unionWithRestParameter3: { (a: string, ...b: number[]): string; } | { (a: string): number };
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strOrNum = unionWithRestParameter3('hello'); // error no call signature
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strOrNum = unionWithRestParameter3('hello', 10); // error no call signature
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strOrNum = unionWithRestParameter3('hello', 10, 11); // error no call signature
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strOrNum = unionWithRestParameter3('hello', "hello"); // error no call signature
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strOrNum = unionWithRestParameter3(); // error no call signature
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//// [unionTypeCallSignatures.js]
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var numOrDate;
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var strOrBoolean;
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var strOrNum;
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// If each type in U has call signatures and the sets of call signatures are identical ignoring return types,
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// U has the same set of call signatures, but with return types that are unions of the return types of the respective call signatures from each type in U.
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var unionOfDifferentReturnType;
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numOrDate = unionOfDifferentReturnType(10);
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strOrBoolean = unionOfDifferentReturnType("hello"); // error
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unionOfDifferentReturnType1(true); // error in type of parameter
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var unionOfDifferentReturnType1;
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numOrDate = unionOfDifferentReturnType1(10);
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strOrBoolean = unionOfDifferentReturnType1("hello");
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unionOfDifferentReturnType1(true); // error in type of parameter
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unionOfDifferentReturnType1(); // error missing parameter
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var unionOfDifferentParameterTypes;
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unionOfDifferentParameterTypes(10); // error - no call signatures
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unionOfDifferentParameterTypes("hello"); // error - no call signatures
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unionOfDifferentParameterTypes(); // error - no call signatures
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var unionOfDifferentNumberOfSignatures;
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unionOfDifferentNumberOfSignatures(); // error - no call signatures
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unionOfDifferentNumberOfSignatures(10); // error - no call signatures
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unionOfDifferentNumberOfSignatures("hello"); // error - no call signatures
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var unionWithDifferentParameterCount;
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unionWithDifferentParameterCount(); // no call signature
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unionWithDifferentParameterCount("hello"); // no call signature
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unionWithDifferentParameterCount("hello", 10); // no call signature
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var unionWithOptionalParameter1;
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strOrNum = unionWithOptionalParameter1('hello');
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strOrNum = unionWithOptionalParameter1('hello', 10);
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strOrNum = unionWithOptionalParameter1('hello', "hello"); // error in parameter type
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strOrNum = unionWithOptionalParameter1(); // error
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var unionWithOptionalParameter2;
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strOrNum = unionWithOptionalParameter2('hello'); // error no call signature
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strOrNum = unionWithOptionalParameter2('hello', 10); // error no call signature
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strOrNum = unionWithOptionalParameter2('hello', "hello"); // error no call signature
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strOrNum = unionWithOptionalParameter2(); // error no call signature
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var unionWithOptionalParameter3;
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strOrNum = unionWithOptionalParameter3('hello'); // error no call signature
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strOrNum = unionWithOptionalParameter3('hello', 10); // error no call signature
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strOrNum = unionWithOptionalParameter3('hello', "hello"); // error no call signature
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strOrNum = unionWithOptionalParameter3(); // error no call signature
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var unionWithRestParameter1;
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strOrNum = unionWithRestParameter1('hello');
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strOrNum = unionWithRestParameter1('hello', 10);
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strOrNum = unionWithRestParameter1('hello', 10, 11);
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strOrNum = unionWithRestParameter1('hello', "hello"); // error in parameter type
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strOrNum = unionWithRestParameter1(); // error
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var unionWithRestParameter2;
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strOrNum = unionWithRestParameter2('hello'); // error no call signature
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strOrNum = unionWithRestParameter2('hello', 10); // error no call signature
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strOrNum = unionWithRestParameter2('hello', 10, 11); // error no call signature
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strOrNum = unionWithRestParameter2('hello', "hello"); // error no call signature
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strOrNum = unionWithRestParameter2(); // error no call signature
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var unionWithRestParameter3;
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strOrNum = unionWithRestParameter3('hello'); // error no call signature
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strOrNum = unionWithRestParameter3('hello', 10); // error no call signature
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strOrNum = unionWithRestParameter3('hello', 10, 11); // error no call signature
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strOrNum = unionWithRestParameter3('hello', "hello"); // error no call signature
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strOrNum = unionWithRestParameter3(); // error no call signature
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