Do not complain about missing bodies on native functions

2014-12-01 15:29:15 +03:00
parent 19d0ad7e10
commit 76e2ae2005
5 changed files with 140 additions and 1 deletions
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2010-2014 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.jet.lang.resolve.kotlin.nativeDeclarations
+
+import org.jetbrains.jet.lang.resolve.DiagnosticsWithSuppression
+import org.jetbrains.jet.lang.descriptors.annotations.AnnotationDescriptor
+import org.jetbrains.jet.lang.resolve.DescriptorUtils
+import org.jetbrains.jet.lang.diagnostics.Errors
+import org.jetbrains.jet.lang.resolve.AnnotationChecker
+import org.jetbrains.jet.lang.psi.JetDeclaration
+import org.jetbrains.jet.lang.descriptors.DeclarationDescriptor
+import org.jetbrains.jet.lang.diagnostics.DiagnosticSink
+import org.jetbrains.jet.lang.resolve.name.FqName
+import org.jetbrains.jet.lang.descriptors.CallableMemberDescriptor
+import org.jetbrains.jet.lang.descriptors.Modality
+import org.jetbrains.jet.lang.resolve.java.diagnostics.ErrorsJvm
+
+private val NATIVE_ANNOTATION_CLASS_NAME = FqName("kotlin.jvm.native")
+
+public fun DeclarationDescriptor.hasNativeAnnotation(): Boolean {
+    return getAnnotations().findAnnotation(NATIVE_ANNOTATION_CLASS_NAME) != null
+}
+
+class SuppressNoBodyErrorsForNativeDeclarations : DiagnosticsWithSuppression.SuppressStringProvider {
+    override fun get(annotationDescriptor: AnnotationDescriptor): List<String> {
+        val descriptor = DescriptorUtils.getClassDescriptorForType(annotationDescriptor.getType())
+        if (NATIVE_ANNOTATION_CLASS_NAME.asString() == DescriptorUtils.getFqName(descriptor).asString()) {
+            return listOf(
+                    Errors.NON_ABSTRACT_FUNCTION_WITH_NO_BODY.getName().toLowerCase(),
+                    Errors.NON_MEMBER_FUNCTION_NO_BODY.getName().toLowerCase(),
+                    Errors.FINAL_FUNCTION_WITH_NO_BODY.getName().toLowerCase()
+            )
+        }
+
+        return listOf()
+    }
+}
+
+public class NativeFunChecker : AnnotationChecker {
+    override fun check(declaration: JetDeclaration, descriptor: DeclarationDescriptor, diagnosticHolder: DiagnosticSink) {
+        if (descriptor.hasNativeAnnotation() &&
+            descriptor is CallableMemberDescriptor &&
+            descriptor.getModality() == Modality.ABSTRACT) {
+            diagnosticHolder.report(ErrorsJvm.NATIVE_DECLARATION_CANNOT_BE_ABSTRACT.on(declaration))
+        }
+    }
+}