Forbid val field initialization inside EXACLTY_ONCE lambda

unless the lambda is inline. This way, final field will remain final.
2020-06-03 18:32:43 +02:00
parent 6d6a228057
commit 8cc5f2abfb
18 changed files with 177 additions and 76 deletions
@@ -0,0 +1,60 @@
+// !LANGUAGE: +AllowContractsForCustomFunctions +UseCallsInPlaceEffect
+// !USE_EXPERIMENTAL: kotlin.internal.ContractsDsl
+
+import kotlin.contracts.*
+
+@kotlin.contracts.ExperimentalContracts
+inline fun inlineMe(block: () -> Unit) {
+    contract {
+        callsInPlace(block, InvocationKind.EXACTLY_ONCE)
+    }
+    block()
+}
+
+@kotlin.contracts.ExperimentalContracts
+inline fun crossinlineMe(crossinline block: () -> Unit) {
+    contract {
+        callsInPlace(block, InvocationKind.EXACTLY_ONCE)
+    }
+    block()
+}
+
+@Suppress("NOTHING_TO_INLINE")
+@kotlin.contracts.ExperimentalContracts
+inline fun noinlineMe(noinline block: () -> Unit) {
+    contract {
+        callsInPlace(block, InvocationKind.EXACTLY_ONCE)
+    }
+    block()
+}
+
+@kotlin.contracts.ExperimentalContracts
+fun notinline(block: () -> Unit) {
+    contract {
+        callsInPlace(block, InvocationKind.EXACTLY_ONCE)
+    }
+    block()
+}
+
+@kotlin.contracts.ExperimentalContracts
+class Test {
+    val a: String
+    val b: String
+    val c: String
+    val d: String
+
+    init {
+        inlineMe {
+            a = "allowed"
+        }
+        crossinlineMe {
+            b = "not allowed"
+        }
+        noinlineMe {
+            c = "not allowed"
+        }
+        notinline {
+            d = "not allowed"
+        }
+    }
+}
@@ -0,0 +1,60 @@
+// !LANGUAGE: +AllowContractsForCustomFunctions +UseCallsInPlaceEffect
+// !USE_EXPERIMENTAL: kotlin.internal.ContractsDsl
+
+import kotlin.contracts.*
+
+@kotlin.contracts.ExperimentalContracts
+inline fun inlineMe(block: () -> Unit) {
+    contract {
+        callsInPlace(block, InvocationKind.EXACTLY_ONCE)
+    }
+    block()
+}
+
+@kotlin.contracts.ExperimentalContracts
+inline fun crossinlineMe(crossinline block: () -> Unit) {
+    contract {
+        callsInPlace(block, InvocationKind.EXACTLY_ONCE)
+    }
+    block()
+}
+
+@Suppress("NOTHING_TO_INLINE")
+@kotlin.contracts.ExperimentalContracts
+inline fun noinlineMe(noinline block: () -> Unit) {
+    contract {
+        callsInPlace(block, InvocationKind.EXACTLY_ONCE)
+    }
+    block()
+}
+
+@kotlin.contracts.ExperimentalContracts
+fun notinline(block: () -> Unit) {
+    contract {
+        callsInPlace(block, InvocationKind.EXACTLY_ONCE)
+    }
+    block()
+}
+
+@kotlin.contracts.ExperimentalContracts
+class Test {
+    val a: String
+    val b: String
+    val c: String
+    val d: String
+
+    init {
+        inlineMe {
+            a = "allowed"
+        }
+        crossinlineMe {
+            <!CAPTURED_VAL_INITIALIZATION!>b<!> = "not allowed"
+        }
+        noinlineMe {
+            <!CAPTURED_VAL_INITIALIZATION!>c<!> = "not allowed"
+        }
+        notinline {
+            <!CAPTURED_VAL_INITIALIZATION!>d<!> = "not allowed"
+        }
+    }
+}
@@ -0,0 +1,24 @@
+package
+
+@kotlin.contracts.ExperimentalContracts public inline fun crossinlineMe(/*0*/ crossinline block: () -> kotlin.Unit): kotlin.Unit
+    CallsInPlace(block, EXACTLY_ONCE)
+
+@kotlin.contracts.ExperimentalContracts public inline fun inlineMe(/*0*/ block: () -> kotlin.Unit): kotlin.Unit
+    CallsInPlace(block, EXACTLY_ONCE)
+
+@kotlin.Suppress(names = {"NOTHING_TO_INLINE"}) @kotlin.contracts.ExperimentalContracts public inline fun noinlineMe(/*0*/ noinline block: () -> kotlin.Unit): kotlin.Unit
+    CallsInPlace(block, EXACTLY_ONCE)
+
+@kotlin.contracts.ExperimentalContracts public fun notinline(/*0*/ block: () -> kotlin.Unit): kotlin.Unit
+    CallsInPlace(block, EXACTLY_ONCE)
+
+@kotlin.contracts.ExperimentalContracts public final class Test {
+    public constructor Test()
+    public final val a: kotlin.String
+    public final val b: kotlin.String
+    public final val c: kotlin.String
+    public final val d: kotlin.String
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}