Svetlana Isakova
44 lines
891 B
Markdown
44 lines
891 B
Markdown
Several directives can be added in the beginning of a test file in the syntax:
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`// !DIRECTIVE`
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## Directives:
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### 1. DIAGNOSTICS
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Must be
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'([ + - ! ] DIAGNOSTIC_FACTORY_NAME | ERROR | WARNING | INFO ) +'
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where
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* `'+'` means 'include';
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* `'-'` means 'exclude';
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* `'!'` means 'exclude everything but this'.
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Directives are applied in the order of appearance,
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i.e. `!FOO +BAR` means include only `FOO` and `BAR`.
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#### Examples:
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// !DIAGNOSTICS: -WARNING +CAST_NEVER_SUCCEEDS
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// !DIAGNOSTICS: -UNUSED_EXPRESSION -UNUSED_PARAMETER -UNUSED_VARIABLE
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### 2. CHECK_TYPE
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The directive adds the following declarations to the file:
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class _<T>
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fun <T> T.checkType(f: (_<T>) -> Unit) = f
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With that, an exact type of an expression can be checked in the following way:
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fun test(expr: A) {
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expr checkType { it: _<A> }
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}
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#### Usage:
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// !CHECK_TYPE |