37 lines
1.6 KiB
Plaintext
37 lines
1.6 KiB
Plaintext
==== tests/cases/compiler/implicitAnyFunctionReturnNullOrUndefined.ts (4 errors) ====
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// this should be an error
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function nullWidenFunction() { return null;} // error at "nullWidenFunction"
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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!!! 'nullWidenFunction', which lacks return-type annotation, implicitly has an 'any' return type.
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function undefinedWidenFunction() { return undefined; } // error at "undefinedWidenFunction"
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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!!! 'undefinedWidenFunction', which lacks return-type annotation, implicitly has an 'any' return type.
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class C {
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nullWidenFuncOfC() { // error at "nullWidenFuncOfC"
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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return null;
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~~~~~~~~~~~~~~~~~~~~
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}
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~~~~~
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!!! 'nullWidenFuncOfC', which lacks return-type annotation, implicitly has an 'any' return type.
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underfinedWidenFuncOfC() { // error at "underfinedWidenFuncOfC"
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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return undefined;
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~~~~~~~~~~~~~~~~~~~~~~~~~
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}
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~~~~~
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!!! 'underfinedWidenFuncOfC', which lacks return-type annotation, implicitly has an 'any' return type.
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}
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// this should not be an error
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function foo1(): any { return null; }
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function bar1(): any { return undefined; }
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function fooBar(): number { return 1; }
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function fooFoo() { return 5; }
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// this should not be an error as the error is raised by expr above
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nullWidenFunction();
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undefinedWidenFunction();
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