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Diffstat (limited to 'src/lombok/eclipse/TransformEclipseAST.java')
| -rw-r--r-- | src/lombok/eclipse/TransformEclipseAST.java | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/src/lombok/eclipse/TransformEclipseAST.java b/src/lombok/eclipse/TransformEclipseAST.java deleted file mode 100644 index 3b5482ca..00000000 --- a/src/lombok/eclipse/TransformEclipseAST.java +++ /dev/null @@ -1,196 +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.eclipse; - -import java.lang.reflect.Field; - -import lombok.patcher.Symbols; - -import org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration; -import org.eclipse.jdt.internal.compiler.ast.Annotation; -import org.eclipse.jdt.internal.compiler.ast.Argument; -import org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration; -import org.eclipse.jdt.internal.compiler.ast.FieldDeclaration; -import org.eclipse.jdt.internal.compiler.ast.LocalDeclaration; -import org.eclipse.jdt.internal.compiler.ast.TypeDeclaration; -import org.eclipse.jdt.internal.compiler.parser.Parser; - -/** - * Entry point for the Eclipse Parser patch that lets lombok modify the Abstract Syntax Tree as generated by - * Eclipse's parser implementations. This class is injected into the appropriate OSGi ClassLoader and can thus - * use any classes that belong to org.eclipse.jdt.(apt.)core. - * - * Note that, for any Method body, if Bit24 is set, the Eclipse parser has been patched to never attempt to - * (re)parse it. You should set Bit24 on any MethodDeclaration object you inject into the AST: - * - * {@code methodDeclaration.bits |= ASTNode.Bit24; //0x800000} - * - * @author rzwitserloot - * @author rspilker - */ -public class TransformEclipseAST { - private final EclipseAST ast; - //The patcher hacks this field onto CUD. It's public. - private static final Field astCacheField; - private static final HandlerLibrary handlers; - - private static boolean disableLombok = false; - - static { - Field f = null; - HandlerLibrary l = null; - try { - l = HandlerLibrary.load(); - f = CompilationUnitDeclaration.class.getDeclaredField("$lombokAST"); - } catch (Throwable t) { - try { - Eclipse.error(null, "Problem initializing lombok", t); - } catch (Throwable t2) { - System.err.println("Problem initializing lombok"); - t.printStackTrace(); - } - disableLombok = true; - } - astCacheField = f; - handlers = l; - } - - public static void transform_swapped(CompilationUnitDeclaration ast, Parser parser) { - transform(parser, ast); - } - - /** - * This method is called immediately after Eclipse finishes building a CompilationUnitDeclaration, which is - * the top-level AST node when Eclipse parses a source file. The signature is 'magic' - you should not - * change it! - * - * Eclipse's parsers often operate in diet mode, which means many parts of the AST have been left blank. - * Be ready to deal with just about anything being null, such as the Statement[] arrays of the Method AST nodes. - * - * @param parser The Eclipse parser object that generated the AST. - * @param ast The AST node belonging to the compilation unit (java speak for a single source file). - */ - public static void transform(Parser parser, CompilationUnitDeclaration ast) { - if (disableLombok) return; - - if (Symbols.hasSymbol("lombok.disable")) return; - - try { - EclipseAST existing = getCache(ast); - if (existing == null) { - existing = new EclipseAST(ast); - setCache(ast, existing); - } else existing.reparse(); - new TransformEclipseAST(existing).go(); - } catch (Throwable t) { - try { - String message = "Lombok can't parse this source: " + t.toString(); - - EclipseAST.addProblemToCompilationResult(ast, false, message, 0, 0); - t.printStackTrace(); - } catch (Throwable t2) { - try { - Eclipse.error(ast, "Can't create an error in the problems dialog while adding: " + t.toString(), t2); - } catch (Throwable t3) { - //This seems risky to just silently turn off lombok, but if we get this far, something pretty - //drastic went wrong. For example, the eclipse help system's JSP compiler will trigger a lombok call, - //but due to class loader shenanigans we'll actually get here due to a cascade of - //ClassNotFoundErrors. This is the right action for the help system (no lombok needed for that JSP compiler, - //of course). 'disableLombok' is static, but each context classloader (e.g. each eclipse OSGi plugin) has - //it's own edition of this class, so this won't turn off lombok everywhere. - disableLombok = true; - } - } - } - } - - private static EclipseAST getCache(CompilationUnitDeclaration ast) { - if (astCacheField == null) return null; - try { - return (EclipseAST)astCacheField.get(ast); - } catch (Exception e) { - e.printStackTrace(); - return null; - } - } - - private static void setCache(CompilationUnitDeclaration ast, EclipseAST cache) { - if (astCacheField != null) try { - astCacheField.set(ast, cache); - } catch (Exception ignore) { - ignore.printStackTrace(); - } - } - - public TransformEclipseAST(EclipseAST ast) { - this.ast = ast; - } - - /** - * First handles all lombok annotations except PrintAST, then calls all non-annotation based handlers. - * then handles any PrintASTs. - */ - public void go() { - handlers.skipPrintAST(); - ast.traverse(new AnnotationVisitor()); - handlers.callASTVisitors(ast); - handlers.skipAllButPrintAST(); - ast.traverse(new AnnotationVisitor()); - } - - private static class AnnotationVisitor extends EclipseASTAdapter { - @Override public void visitAnnotationOnField(FieldDeclaration field, EclipseNode annotationNode, Annotation annotation) { - if (annotationNode.isHandled()) return; - CompilationUnitDeclaration top = (CompilationUnitDeclaration) annotationNode.top().get(); - boolean handled = handlers.handle(top, annotationNode, annotation); - if (handled) annotationNode.setHandled(); - } - - @Override public void visitAnnotationOnMethodArgument(Argument arg, AbstractMethodDeclaration method, EclipseNode annotationNode, Annotation annotation) { - if (annotationNode.isHandled()) return; - CompilationUnitDeclaration top = (CompilationUnitDeclaration) annotationNode.top().get(); - boolean handled = handlers.handle(top, annotationNode, annotation); - if (handled) annotationNode.setHandled(); - } - - @Override public void visitAnnotationOnLocal(LocalDeclaration local, EclipseNode annotationNode, Annotation annotation) { - if (annotationNode.isHandled()) return; - CompilationUnitDeclaration top = (CompilationUnitDeclaration) annotationNode.top().get(); - boolean handled = handlers.handle(top, annotationNode, annotation); - if (handled) annotationNode.setHandled(); - } - - @Override public void visitAnnotationOnMethod(AbstractMethodDeclaration method, EclipseNode annotationNode, Annotation annotation) { - if (annotationNode.isHandled()) return; - CompilationUnitDeclaration top = (CompilationUnitDeclaration) annotationNode.top().get(); - boolean handled = handlers.handle(top, annotationNode, annotation); - if (handled) annotationNode.setHandled(); - } - - @Override public void visitAnnotationOnType(TypeDeclaration type, EclipseNode annotationNode, Annotation annotation) { - if (annotationNode.isHandled()) return; - CompilationUnitDeclaration top = (CompilationUnitDeclaration) annotationNode.top().get(); - boolean handled = handlers.handle(top, annotationNode, annotation); - if (handled) annotationNode.setHandled(); - } - } -} |