Effects: add diagnostic tests on contracts

- Make AbstractDiagnosticsTest dump function contracts - Add diagnostics tests on parsing contracts - Add diagnostics tests on smartcats in presence of functions with contracts - Add diagnostics tests on initialization and flow in presence of in-place called lambdas ========== Introduction of EffectSystem: 16/18
2017-10-03 15:02:51 +03:00
parent f487525a1d
commit 4434db4d69
120 changed files with 4179 additions and 1 deletions
@@ -0,0 +1,102 @@
+// !LANGUAGE: +ReturnsEffect
+// !DIAGNOSTICS: -INVISIBLE_REFERENCE -INVISIBLE_MEMBER
+
+import kotlin.internal.contracts.*
+
+fun myAssert(condition: Boolean) {
+    contract {
+        returns() implies (condition)
+    }
+    if (!condition) throw kotlin.IllegalArgumentException("Assertion failed")
+}
+
+fun isString(x: Any?): Boolean {
+    contract {
+        returns(true) implies (x is String)
+    }
+    return x is String
+}
+
+fun isInt(x: Any?): Boolean {
+    contract {
+        returns(true) implies (x is Int)
+    }
+    return x is Int
+}
+
+fun notEqualsNull(x: Any?): Boolean {
+    contract {
+        returns(true) implies (x != null)
+    }
+    return x != null
+}
+
+fun equalsTrue(x: Boolean): Boolean {
+    contract {
+        returns(true) implies x
+    }
+    return x == true
+}
+
+fun nullWhenNotString(x: Any?): String? {
+    contract {
+        returnsNotNull() implies (x is String)
+    }
+    return x as? String
+}
+
+
+
+
+// ========== Actual tests ============
+
+fun nested1(x: Any?) {
+    if (equalsTrue(isString(x))) {
+        <!DEBUG_INFO_SMARTCAST!>x<!>.length
+    }
+    else {
+        x.<!UNRESOLVED_REFERENCE!>length<!>
+    }
+}
+
+fun nested2(x: Any?) {
+    myAssert(equalsTrue(isString(x)))
+    <!DEBUG_INFO_SMARTCAST!>x<!>.length
+}
+
+fun nested3(x: Any?) {
+    myAssert(equalsTrue(notEqualsNull(nullWhenNotString(x))))
+    <!DEBUG_INFO_SMARTCAST!>x<!>.length
+}
+
+fun branchedAndNested(x: Any?, y: Any?) {
+    myAssert(equalsTrue(notEqualsNull(nullWhenNotString(x))) && equalsTrue(isString(y)))
+    <!DEBUG_INFO_SMARTCAST!>x<!>.length
+    <!DEBUG_INFO_SMARTCAST!>y<!>.length
+}
+
+
+fun br(y: Any?) {
+    if (myAssert(y is Int) == Unit && myAssert(y is String) == Unit) {
+        <!DEBUG_INFO_SMARTCAST!>y<!>.length
+        <!DEBUG_INFO_SMARTCAST!>y<!>.inc()
+    }
+}
+
+fun branchedAndNestedWithNativeOperators(x: Any?, y: Any?) {
+    myAssert(
+            equalsTrue(notEqualsNull(nullWhenNotString(x)))   // x is String
+            &&
+            (
+                    (myAssert(y is Int) == Unit && myAssert(y is String) == Unit)  // y is Int, String
+                    ||
+                    equalsTrue(isInt(y) && isString(y))                          // y is Int, String
+            )
+            &&
+            (1 == 2 || y is Int || isString(y))
+    )
+    <!DEBUG_INFO_SMARTCAST!>x<!>.length
+    y.<!UNRESOLVED_REFERENCE!>length<!>
+    y.<!UNRESOLVED_REFERENCE_WRONG_RECEIVER!>inc<!>()
+}
+