aboutsummaryrefslogtreecommitdiff
path: root/src/lombok/javac/handlers/HandleCleanup.java
diff options
context:
space:
mode:
Diffstat (limited to 'src/lombok/javac/handlers/HandleCleanup.java')
-rw-r--r--src/lombok/javac/handlers/HandleCleanup.java147
1 files changed, 0 insertions, 147 deletions
diff --git a/src/lombok/javac/handlers/HandleCleanup.java b/src/lombok/javac/handlers/HandleCleanup.java
deleted file mode 100644
index 88a8e1d7..00000000
--- a/src/lombok/javac/handlers/HandleCleanup.java
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Copyright © 2009 Reinier Zwitserloot and Roel Spilker.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-package lombok.javac.handlers;
-
-import lombok.Cleanup;
-import lombok.core.AnnotationValues;
-import lombok.core.AST.Kind;
-import lombok.javac.JavacAnnotationHandler;
-import lombok.javac.JavacNode;
-
-import org.mangosdk.spi.ProviderFor;
-
-import com.sun.tools.javac.tree.JCTree;
-import com.sun.tools.javac.tree.TreeMaker;
-import com.sun.tools.javac.tree.JCTree.JCAnnotation;
-import com.sun.tools.javac.tree.JCTree.JCAssign;
-import com.sun.tools.javac.tree.JCTree.JCBlock;
-import com.sun.tools.javac.tree.JCTree.JCCase;
-import com.sun.tools.javac.tree.JCTree.JCCatch;
-import com.sun.tools.javac.tree.JCTree.JCExpression;
-import com.sun.tools.javac.tree.JCTree.JCExpressionStatement;
-import com.sun.tools.javac.tree.JCTree.JCFieldAccess;
-import com.sun.tools.javac.tree.JCTree.JCIdent;
-import com.sun.tools.javac.tree.JCTree.JCMethodDecl;
-import com.sun.tools.javac.tree.JCTree.JCStatement;
-import com.sun.tools.javac.tree.JCTree.JCTypeCast;
-import com.sun.tools.javac.tree.JCTree.JCVariableDecl;
-import com.sun.tools.javac.util.List;
-import com.sun.tools.javac.util.Name;
-
-/**
- * Handles the {@code lombok.Cleanup} annotation for javac.
- */
-@ProviderFor(JavacAnnotationHandler.class)
-public class HandleCleanup implements JavacAnnotationHandler<Cleanup> {
- @Override public boolean handle(AnnotationValues<Cleanup> annotation, JCAnnotation ast, JavacNode annotationNode) {
- String cleanupName = annotation.getInstance().value();
- if (cleanupName.length() == 0) {
- annotationNode.addError("cleanupName cannot be the empty string.");
- return true;
- }
-
- if (annotationNode.up().getKind() != Kind.LOCAL) {
- annotationNode.addError("@Cleanup is legal only on local variable declarations.");
- return true;
- }
-
- JCVariableDecl decl = (JCVariableDecl)annotationNode.up().get();
-
- if (decl.init == null) {
- annotationNode.addError("@Cleanup variable declarations need to be initialized.");
- return true;
- }
-
- JavacNode ancestor = annotationNode.up().directUp();
- JCTree blockNode = ancestor.get();
-
- final List<JCStatement> statements;
- if (blockNode instanceof JCBlock) {
- statements = ((JCBlock)blockNode).stats;
- } else if (blockNode instanceof JCCase) {
- statements = ((JCCase)blockNode).stats;
- } else if (blockNode instanceof JCMethodDecl) {
- statements = ((JCMethodDecl)blockNode).body.stats;
- } else {
- annotationNode.addError("@Cleanup is legal only on a local variable declaration inside a block.");
- return true;
- }
-
- boolean seenDeclaration = false;
- List<JCStatement> tryBlock = List.nil();
- List<JCStatement> newStatements = List.nil();
- for (JCStatement statement : statements) {
- if (!seenDeclaration) {
- if (statement == decl) seenDeclaration = true;
- newStatements = newStatements.append(statement);
- } else {
- tryBlock = tryBlock.append(statement);
- }
- }
-
- if (!seenDeclaration) {
- annotationNode.addError("LOMBOK BUG: Can't find this local variable declaration inside its parent.");
- return true;
- }
-
- doAssignmentCheck(annotationNode, tryBlock, decl.name);
-
- TreeMaker maker = annotationNode.getTreeMaker();
- JCFieldAccess cleanupCall = maker.Select(maker.Ident(decl.name), annotationNode.toName(cleanupName));
- List<JCStatement> finalizerBlock = List.<JCStatement>of(maker.Exec(
- maker.Apply(List.<JCExpression>nil(), cleanupCall, List.<JCExpression>nil())));
-
- JCBlock finalizer = maker.Block(0, finalizerBlock);
- newStatements = newStatements.append(maker.Try(maker.Block(0, tryBlock), List.<JCCatch>nil(), finalizer));
-
- if (blockNode instanceof JCBlock) {
- ((JCBlock)blockNode).stats = newStatements;
- } else if (blockNode instanceof JCCase) {
- ((JCCase)blockNode).stats = newStatements;
- } else if (blockNode instanceof JCMethodDecl) {
- ((JCMethodDecl)blockNode).body.stats = newStatements;
- } else throw new AssertionError("Should not get here");
-
- ancestor.rebuild();
-
- return true;
- }
-
- private void doAssignmentCheck(JavacNode node, List<JCStatement> statements, Name name) {
- for (JCStatement statement : statements) doAssignmentCheck0(node, statement, name);
- }
-
- private void doAssignmentCheck0(JavacNode node, JCTree statement, Name name) {
- if (statement instanceof JCAssign) doAssignmentCheck0(node, ((JCAssign)statement).rhs, name);
- if (statement instanceof JCExpressionStatement) doAssignmentCheck0(node,
- ((JCExpressionStatement)statement).expr, name);
- if (statement instanceof JCVariableDecl) doAssignmentCheck0(node, ((JCVariableDecl)statement).init, name);
- if (statement instanceof JCTypeCast) doAssignmentCheck0(node, ((JCTypeCast)statement).expr, name);
- if (statement instanceof JCIdent) {
- if (((JCIdent)statement).name.contentEquals(name)) {
- JavacNode problemNode = node.getNodeFor(statement);
- if (problemNode != null) problemNode.addWarning(
- "You're assigning an auto-cleanup variable to something else. This is a bad idea.");
- }
- }
- }
-}