Support single-underscore variable names partially

Currently only parameters of lambdas/function expressions and destructuring entries are allowed #KT-3824 In Progress #KT-2783 In Progress
2016-10-13 11:55:37 +03:00
parent 82364ad3e5
commit dbca310d8c
19 changed files with 319 additions and 21 deletions
@@ -0,0 +1,49 @@
+// !CHECK_TYPE
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+fun foo(block: (Int, String) -> Unit) { }
+fun foobar(block: (Double) -> Unit) { }
+
+fun bar() {
+    foo { _, b ->
+        <!UNRESOLVED_REFERENCE!>_<!>.<!DEBUG_INFO_ELEMENT_WITH_ERROR_TYPE!>hashCode<!>()
+        b checkType { _<String>() }
+    }
+
+    foo { a, _ ->
+        a checkType { _<Int>() }
+        <!UNRESOLVED_REFERENCE!>_<!>.<!DEBUG_INFO_ELEMENT_WITH_ERROR_TYPE!>hashCode<!>()
+    }
+
+    foo { _, _ ->
+        <!UNRESOLVED_REFERENCE!>_<!>.<!DEBUG_INFO_ELEMENT_WITH_ERROR_TYPE!>hashCode<!>()
+    }
+
+    foo { _: Int, b: String ->
+        <!UNRESOLVED_REFERENCE!>_<!>.<!DEBUG_INFO_ELEMENT_WITH_ERROR_TYPE!>hashCode<!>()
+        b checkType { _<String>() }
+    }
+
+    foo { a: Int, _: String ->
+        a checkType { _<Int>() }
+        <!UNRESOLVED_REFERENCE!>_<!>.<!DEBUG_INFO_ELEMENT_WITH_ERROR_TYPE!>hashCode<!>()
+    }
+
+    foo { _: Int, _: String ->
+        <!UNRESOLVED_REFERENCE!>_<!>.<!DEBUG_INFO_ELEMENT_WITH_ERROR_TYPE!>hashCode<!>()
+    }
+
+    foo { `_`, _ ->
+        _ checkType { _<Int>() }
+    }
+
+    foo { _, `_` ->
+        _ checkType { _<String>() }
+    }
+
+    foo { <!REDECLARATION, REDECLARATION!>`_`<!>, <!REDECLARATION, REDECLARATION!>`_`<!> ->
+        _ checkType { _<String>() }
+    }
+
+    foo(fun(x: Int, _: String) {})
+}