172: Revert "Data Inflow: Support grouping by expression nullability"

This reverts commit e608f1ca159d55df39c8f33704220f360d54ba92.
2018-01-11 20:11:52 +03:00
parent 81a2e2a340
commit 236191bb89
63 changed files with 2398 additions and 0 deletions
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2010-2017 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.idea.slicer
+
+import com.intellij.ide.util.treeView.AbstractTreeStructure
+import com.intellij.openapi.actionSystem.DefaultActionGroup
+import com.intellij.psi.PsiElement
+import com.intellij.slicer.*
+import org.jetbrains.kotlin.idea.references.mainReference
+import org.jetbrains.kotlin.psi.*
+import org.jetbrains.kotlin.psi.psiUtil.isPlainWithEscapes
+import org.jetbrains.kotlin.psi.psiUtil.parentsWithSelf
+
+class KotlinSliceProvider : SliceLanguageSupportProvider {
+    override fun createRootUsage(element: PsiElement, params: SliceAnalysisParams) = KotlinSliceUsage(element, params)
+
+    override fun transform(usage: SliceUsage): Collection<SliceUsage>? {
+        if (usage is KotlinSliceUsage) return null
+        return listOf(KotlinSliceUsage(usage.element, usage.parent, 0, false))
+    }
+
+    override fun getExpressionAtCaret(atCaret: PsiElement?, dataFlowToThis: Boolean): KtExpression? {
+        val element =
+                atCaret?.parentsWithSelf
+                        ?.firstOrNull {
+                            it is KtProperty ||
+                            it is KtParameter ||
+                            it is KtDeclarationWithBody ||
+                            (it is KtClass && !it.hasExplicitPrimaryConstructor()) ||
+                            (it is KtExpression && it !is KtDeclaration)
+                        }
+                        ?.let { KtPsiUtil.safeDeparenthesize(it as KtExpression) } ?: return null
+        if (dataFlowToThis) {
+            if (element is KtConstantExpression) return null
+            if (element is KtStringTemplateExpression && element.isPlainWithEscapes()) return null
+            if (element is KtClassLiteralExpression) return null
+            if (element is KtCallableReferenceExpression) return null
+        }
+        return element
+    }
+
+    override fun getElementForDescription(element: PsiElement): PsiElement {
+        return (element as? KtSimpleNameExpression)?.mainReference?.resolve() ?: element
+    }
+
+    override fun getRenderer() = KotlinSliceUsageCellRenderer
+
+    override fun startAnalyzeLeafValues(structure: AbstractTreeStructure, finalRunnable: Runnable) {
+
+    }
+
+    override fun startAnalyzeNullness(structure: AbstractTreeStructure, finalRunnable: Runnable) {
+
+    }
+
+    override fun registerExtraPanelActions(group: DefaultActionGroup, builder: SliceTreeBuilder) {
+
+    }
+}