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/*
* Copyright (C) 2010 The Project Lombok Authors.
*
* 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.agent;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;
import lombok.core.DiagnosticsReceiver;
import lombok.core.PostCompiler;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jdt.core.IAnnotatable;
import org.eclipse.jdt.core.IAnnotation;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.dom.SimpleName;
import org.eclipse.jdt.internal.compiler.ast.Annotation;
import org.eclipse.jdt.internal.core.dom.rewrite.NodeRewriteEvent;
import org.eclipse.jdt.internal.core.dom.rewrite.RewriteEvent;
import org.eclipse.jdt.internal.core.dom.rewrite.TokenScanner;
public class PatchFixes {
public static boolean isGenerated(org.eclipse.jdt.core.dom.ASTNode node) {
boolean result = false;
try {
result = ((Boolean)node.getClass().getField("$isGenerated").get(node)).booleanValue();
if (!result && node.getParent() != null && node.getParent() instanceof org.eclipse.jdt.core.dom.QualifiedName)
result = isGenerated(node.getParent());
} catch (Exception e) {
// better to assume it isn't generated
}
return result;
}
public static boolean returnFalse(java.lang.Object object) {
return false;
}
public static int fixRetrieveStartingCatchPosition(int original, int start) {
return original == -1 ? start : original;
}
public static int fixRetrieveIdentifierEndPosition(int original, int end) {
return original == -1 ? end : original;
}
public static int fixRetrieveEllipsisStartPosition(int original, int end) {
return original == -1 ? end : original;
}
public static int fixRetrieveRightBraceOrSemiColonPosition(int original, int end) {
return original == -1 ? end : original;
}
public static final int ALREADY_PROCESSED_FLAG = 0x800000; //Bit 24
public static boolean checkBit24(Object node) throws Exception {
int bits = (Integer)(node.getClass().getField("bits").get(node));
return (bits & ALREADY_PROCESSED_FLAG) != 0;
}
public static boolean skipRewritingGeneratedNodes(org.eclipse.jdt.core.dom.ASTNode node) throws Exception {
return ((Boolean)node.getClass().getField("$isGenerated").get(node)).booleanValue();
}
public static void setIsGeneratedFlag(org.eclipse.jdt.core.dom.ASTNode domNode,
org.eclipse.jdt.internal.compiler.ast.ASTNode internalNode) throws Exception {
if (internalNode == null || domNode == null) return;
boolean isGenerated = internalNode.getClass().getField("$generatedBy").get(internalNode) != null;
if (isGenerated) {
domNode.getClass().getField("$isGenerated").set(domNode, true);
domNode.setFlags(domNode.getFlags() & ~org.eclipse.jdt.core.dom.ASTNode.ORIGINAL);
}
}
public static void setIsGeneratedFlagForSimpleName(SimpleName name, Object internalNode) throws Exception {
if (internalNode instanceof org.eclipse.jdt.internal.compiler.ast.ASTNode) {
if (internalNode.getClass().getField("$generatedBy").get(internalNode) != null) {
name.getClass().getField("$isGenerated").set(name, true);
}
}
}
public static RewriteEvent[] listRewriteHandleGeneratedMethods(RewriteEvent parent) {
RewriteEvent[] children = parent.getChildren();
List<RewriteEvent> newChildren = new ArrayList<RewriteEvent>();
List<RewriteEvent> modifiedChildren = new ArrayList<RewriteEvent>();
for (int i=0; i<children.length; i++) {
RewriteEvent child = children[i];
boolean isGenerated = false;
try {
org.eclipse.jdt.core.dom.ASTNode originalValue = (org.eclipse.jdt.core.dom.ASTNode)child.getOriginalValue();
isGenerated = (Boolean) originalValue.getClass().getField("$isGenerated").get(originalValue);
} catch (Exception e) {
// If this fails, better to break some refactor scripts than to crash eclipse.
}
if (isGenerated
&& (child.getChangeKind() == RewriteEvent.REPLACED || child.getChangeKind() == RewriteEvent.REMOVED)
&& child.getOriginalValue() instanceof org.eclipse.jdt.core.dom.MethodDeclaration
) {
if (child.getNewValue() != null)
modifiedChildren.add(new NodeRewriteEvent(null, child.getNewValue()));
} else {
newChildren.add(child);
}
}
// Since Eclipse doesn't honor the "insert at specified location" for already existing members,
// we'll just add them last
newChildren.addAll(modifiedChildren);
return newChildren.toArray(new RewriteEvent[newChildren.size()]);
}
public static int getTokenEndOffsetFixed(TokenScanner scanner, int token, int startOffset, Object domNode) throws CoreException {
boolean isGenerated = false;
try {
isGenerated = (Boolean) domNode.getClass().getField("$isGenerated").get(domNode);
} catch (Exception e) {
// If this fails, better to break some refactor scripts than to crash eclipse.
}
if (isGenerated) return -1;
return scanner.getTokenEndOffset(token, startOffset);
}
public static IMethod[] removeGeneratedMethods(IMethod[] methods) throws Exception {
List<IMethod> result = new ArrayList<IMethod>();
for (IMethod m : methods) {
if (m.getNameRange().getLength() > 0) result.add(m);
}
return result.size() == methods.length ? methods : result.toArray(new IMethod[0]);
}
public static SimpleName[] removeGeneratedSimpleNames(SimpleName[] in) throws Exception {
Field f = SimpleName.class.getField("$isGenerated");
int count = 0;
for (int i = 0; i < in.length; i++) {
if (in[i] == null || !((Boolean)f.get(in[i])).booleanValue()) count++;
}
if (count == in.length) return in;
SimpleName[] newSimpleNames = new SimpleName[count];
count = 0;
for (int i = 0; i < in.length; i++) {
if (in[i] == null || !((Boolean)f.get(in[i])).booleanValue()) newSimpleNames[count++] = in[i];
}
return newSimpleNames;
}
public static byte[] runPostCompiler(byte[] bytes, String fileName) {
byte[] transformed = PostCompiler.applyTransformations(bytes, fileName, DiagnosticsReceiver.CONSOLE);
return transformed == null ? bytes : transformed;
}
public static OutputStream runPostCompiler(OutputStream out) throws IOException {
return PostCompiler.wrapOutputStream(out, "TEST", DiagnosticsReceiver.CONSOLE);
}
public static BufferedOutputStream runPostCompiler(BufferedOutputStream out, String path, String name) throws IOException {
String fileName = path + "/" + name;
return new BufferedOutputStream(PostCompiler.wrapOutputStream(out, fileName, DiagnosticsReceiver.CONSOLE));
}
public static Annotation[] convertAnnotations(Annotation[] out, IAnnotatable annotatable) {
IAnnotation[] in;
try {
in = annotatable.getAnnotations();
} catch (Exception e) {
return out;
}
if (out == null) return null;
int toWrite = 0;
for (int idx = 0; idx < out.length; idx++) {
String oName = new String(out[idx].type.getLastToken());
boolean found = false;
for (IAnnotation i : in) {
String name = i.getElementName();
int li = name.lastIndexOf('.');
if (li > -1) name = name.substring(li + 1);
if (name.equals(oName)) {
found = true;
break;
}
}
if (!found) out[idx] = null;
else toWrite++;
}
Annotation[] replace = out;
if (toWrite < out.length) {
replace = new Annotation[toWrite];
int idx = 0;
for (int i = 0; i < out.length; i++) {
if (out[i] == null) continue;
replace[idx++] = out[i];
}
}
return replace;
}
}
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