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/*
* Copyright (C) 2020 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 static lombok.eclipse.EclipseAugments.CompilationUnit_javadoc;
import java.lang.reflect.Method;
import java.util.Map;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IMember;
import org.eclipse.jdt.internal.compiler.ast.ASTNode;
import org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration;
import org.eclipse.jdt.internal.compiler.ast.TypeDeclaration;
import org.eclipse.jdt.internal.core.CompilationUnit;
import org.eclipse.jdt.internal.core.SourceMethod;
import org.eclipse.jdt.internal.ui.text.javadoc.JavadocContentAccess2;
import lombok.eclipse.EclipseAugments;
import lombok.eclipse.handlers.EclipseHandlerUtil;
import lombok.permit.Permit;
public class PatchJavadoc {
public static String getHTMLContentFromSource(String original, IJavaElement member) {
if (original != null) {
return original;
}
if (member instanceof SourceMethod) {
SourceMethod sourceMethod = (SourceMethod) member;
ICompilationUnit iCompilationUnit = sourceMethod.getCompilationUnit();
if (iCompilationUnit instanceof CompilationUnit) {
CompilationUnit compilationUnit = (CompilationUnit) iCompilationUnit;
Map<String, String> docs = EclipseAugments.CompilationUnit_javadoc.get(compilationUnit);
String signature = getSignature(sourceMethod);
String rawJavadoc = docs.get(signature);
if (rawJavadoc == null) return null;
return Reflection.javadoc2HTML((IMember) member, member, rawJavadoc);
}
}
return null;
}
public static StringBuffer printMethod(AbstractMethodDeclaration methodDeclaration, Integer tab, StringBuffer output, TypeDeclaration type) {
if (methodDeclaration.compilationResult.compilationUnit instanceof CompilationUnit) {
Map<String, String> docs = CompilationUnit_javadoc.get((CompilationUnit) methodDeclaration.compilationResult.compilationUnit);
if (docs != null) {
String signature = EclipseHandlerUtil.getSignature(type, methodDeclaration);
String rawJavadoc = docs.get(signature);
if (rawJavadoc != null) {
for (String line : rawJavadoc.split("\r?\n")) {
ASTNode.printIndent(tab, output).append(line).append("\n");
}
}
}
}
return methodDeclaration.print(tab, output);
}
private static String getSignature(SourceMethod sourceMethod) {
StringBuilder sb = new StringBuilder();
sb.append(sourceMethod.getParent().getElementName());
sb.append(".");
sb.append(sourceMethod.getElementName());
sb.append("(");
for (String type : sourceMethod.getParameterTypes()) {
sb.append(type);
}
sb.append(")");
return sb.toString();
}
/**
* The method <code>javadoc2HTML</code> changed 2014-12 to accept an
* additional IJavaElement parameter. To support older versions, try to
* find that one too.
*/
private static class Reflection {
private static final Method javadoc2HTML;
private static final Method oldJavadoc2HTML;
static {
Method a = null, b = null;
try {
a = Permit.getMethod(JavadocContentAccess2.class, "javadoc2HTML", IMember.class, IJavaElement.class, String.class);
} catch (Throwable t) {}
try {
b = Permit.getMethod(JavadocContentAccess2.class, "javadoc2HTML", IMember.class, String.class);
} catch (Throwable t) {}
javadoc2HTML = a;
oldJavadoc2HTML = b;
}
private static String javadoc2HTML(IMember member, IJavaElement element, String rawJavadoc) {
if (javadoc2HTML != null) {
try {
return (String) javadoc2HTML.invoke(null, member, element, rawJavadoc);
} catch (Throwable t) {
return null;
}
}
if (oldJavadoc2HTML != null) {
try {
return (String) oldJavadoc2HTML.invoke(null, member, rawJavadoc);
} catch (Throwable t) {
return null;
}
}
return null;
}
}
}
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