Support isInitialized intrinsic for lateinit properties

See https://github.com/Kotlin/KEEP/pull/73 #KT-9327 Fixed
2017-07-12 18:57:15 +03:00
parent 08052e63e9
commit c6263ac8e6
26 changed files with 665 additions and 55 deletions
@@ -0,0 +1,88 @@
+// !DIAGNOSTICS: -UNUSED_VARIABLE -NOTHING_TO_INLINE
+// !API_VERSION: 1.2
+// FILE: test.kt
+
+interface Base {
+    var x: String
+}
+
+open class Foo : Base {
+    override lateinit var x: String
+    private lateinit var y: String
+
+    var nonLateInit: Int = 1
+
+    fun ok() {
+        val b: Boolean = this::x.isInitialized
+
+        val otherInstance = Foo()
+        otherInstance::x.isInitialized
+
+        (this::x).isInitialized
+        (@Suppress("ALL") (this::x)).isInitialized
+
+        object {
+            fun local() {
+                class Local {
+                    val xx = this@Foo::x.isInitialized
+                    val yy = this@Foo::y.isInitialized
+                }
+            }
+        }
+    }
+
+    fun onLiteral() {
+        val p = this::x
+        p.<!LATEINIT_INTRINSIC_CALL_ON_NON_LITERAL!>isInitialized<!>
+    }
+
+    fun onNonLateinit() {
+        this::nonLateInit.<!LATEINIT_INTRINSIC_CALL_ON_NON_LATEINIT!>isInitialized<!>
+    }
+
+    inline fun inlineFun() {
+        this::x.<!LATEINIT_INTRINSIC_CALL_IN_INLINE_FUNCTION!>isInitialized<!>
+
+        object {
+            val z = this@Foo::x.isInitialized
+        }
+    }
+
+    inner class InnerSubclass : Foo() {
+        fun innerOk() {
+            // This is access to Foo.x declared lexically above
+            this@Foo::x.isInitialized
+
+            // This is access to InnerSubclass.x which is inherited from Foo.x
+            this::x.isInitialized
+        }
+    }
+}
+
+fun onNonAccessible() {
+    Foo()::x.<!LATEINIT_INTRINSIC_CALL_ON_NON_ACCESSIBLE_PROPERTY!>isInitialized<!>
+}
+
+fun onNonLateinit() {
+    Foo()::nonLateInit.<!LATEINIT_INTRINSIC_CALL_ON_NON_LATEINIT!>isInitialized<!>
+}
+
+object Unrelated {
+    fun onNonAccessible() {
+        Foo()::x.<!LATEINIT_INTRINSIC_CALL_ON_NON_ACCESSIBLE_PROPERTY!>isInitialized<!>
+    }
+}
+
+class FooImpl : Foo() {
+    fun onNonAccessible() {
+        this::x.<!LATEINIT_INTRINSIC_CALL_ON_NON_ACCESSIBLE_PROPERTY!>isInitialized<!>
+    }
+}
+
+// FILE: other.kt
+
+class OtherFooImpl : Foo() {
+    fun onNonAccessible() {
+        this::x.<!LATEINIT_INTRINSIC_CALL_ON_NON_ACCESSIBLE_PROPERTY!>isInitialized<!>
+    }
+}