AllOpen: Add IDE integration

2016-12-01 17:43:00 +03:00
parent 4d638c2cfd
commit 6abde4223b
53 changed files with 677 additions and 175 deletions
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2010-2016 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.kotlin.allopen
+
+import org.jetbrains.kotlin.descriptors.ClassDescriptor
+import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
+import org.jetbrains.kotlin.descriptors.Modality
+import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
+import org.jetbrains.kotlin.extensions.DeclarationAttributeAltererExtension
+import org.jetbrains.kotlin.lexer.KtTokens
+import org.jetbrains.kotlin.psi.KtModifierListOwner
+import org.jetbrains.kotlin.resolve.BindingContext
+import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameSafe
+import org.jetbrains.kotlin.types.TypeUtils
+
+class CliAllOpenDeclarationAttributeAltererExtension(
+        private val allOpenAnnotationFqNames: List<String>
+) : AbstractAllOpenDeclarationAttributeAltererExtension() {
+    override fun getAllOpenAnnotationFqNames(modifierListOwner: KtModifierListOwner) = allOpenAnnotationFqNames
+}
+
+abstract class AbstractAllOpenDeclarationAttributeAltererExtension : DeclarationAttributeAltererExtension {
+    abstract fun getAllOpenAnnotationFqNames(modifierListOwner: KtModifierListOwner): List<String>
+
+    override fun refineDeclarationModality(
+            modifierListOwner: KtModifierListOwner,
+            declaration: DeclarationDescriptor?,
+            containingDeclaration: DeclarationDescriptor?,
+            currentModality: Modality,
+            bindingContext: BindingContext
+    ): Modality? {
+        if (currentModality != Modality.FINAL) {
+            return null
+        }
+
+        // Explicit final
+        if (modifierListOwner.hasModifier(KtTokens.FINAL_KEYWORD)) {
+            return null
+        }
+
+        val descriptor = declaration ?: containingDeclaration ?: return null
+        if (descriptor.hasAllOpenAnnotation(modifierListOwner)) return Modality.OPEN
+
+        return null
+    }
+
+    private fun DeclarationDescriptor.hasAllOpenAnnotation(modifierListOwner: KtModifierListOwner): Boolean {
+        if (annotations.any { it.isAllOpenAnnotation(modifierListOwner) }) return true
+
+        if (this is ClassDescriptor) {
+            for (superType in TypeUtils.getAllSupertypes(defaultType)) {
+                val superTypeDescriptor = superType.constructor.declarationDescriptor as? ClassDescriptor ?: continue
+                if (superTypeDescriptor.annotations.any { it.isAllOpenAnnotation(modifierListOwner) }) return true
+            }
+        }
+
+        return false
+    }
+
+    private fun AnnotationDescriptor.isAllOpenAnnotation(
+            modifierListOwner: KtModifierListOwner,
+            allowMetaAnnotations: Boolean = true
+    ): Boolean {
+        val annotationType = type.constructor.declarationDescriptor ?: return false
+        if (annotationType.fqNameSafe.asString() in getAllOpenAnnotationFqNames(modifierListOwner)) return true
+
+        if (allowMetaAnnotations) {
+            for (metaAnnotation in annotationType.annotations) {
+                if (metaAnnotation.isAllOpenAnnotation(modifierListOwner, allowMetaAnnotations = false)) {
+                    return true
+                }
+            }
+        }
+
+        return false
+    }
+}