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package lombok.eclipse;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import lombok.core.AnnotationValues;
import lombok.core.TypeLibrary;
import lombok.core.TypeResolver;
import lombok.core.AST.Kind;
import lombok.core.AnnotationValues.AnnotationValue;
import lombok.eclipse.EclipseAST.Node;
import org.eclipse.core.runtime.ILog;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Status;
import org.eclipse.jdt.internal.compiler.ast.ASTNode;
import org.eclipse.jdt.internal.compiler.ast.Annotation;
import org.eclipse.jdt.internal.compiler.ast.ArrayInitializer;
import org.eclipse.jdt.internal.compiler.ast.ClassLiteralAccess;
import org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration;
import org.eclipse.jdt.internal.compiler.ast.Expression;
import org.eclipse.jdt.internal.compiler.ast.Literal;
import org.eclipse.jdt.internal.compiler.ast.MemberValuePair;
import org.eclipse.jdt.internal.compiler.ast.QualifiedNameReference;
import org.eclipse.jdt.internal.compiler.ast.SingleNameReference;
import org.eclipse.jdt.internal.compiler.ast.TypeReference;
import org.eclipse.jdt.internal.compiler.lookup.TypeIds;
import org.osgi.framework.Bundle;
public class Eclipse {
public static final int ECLIPSE_DO_NOT_TOUCH_FLAG = ASTNode.Bit24;
private Eclipse() {
//Prevent instantiation
}
private static final String DEFAULT_BUNDLE = "org.eclipse.jdt.core";
public static void error(CompilationUnitDeclaration cud, String message) {
error(cud, message, DEFAULT_BUNDLE, null);
}
public static void error(CompilationUnitDeclaration cud, String message, Throwable error) {
error(cud, message, DEFAULT_BUNDLE, error);
}
public static void error(CompilationUnitDeclaration cud, String message, String bundleName) {
error(cud, message, bundleName, null);
}
public static void error(CompilationUnitDeclaration cud, String message, String bundleName, Throwable error) {
Bundle bundle = Platform.getBundle(bundleName);
if ( bundle == null ) {
System.err.printf("Can't find bundle %s while trying to report error:\n%s\n", bundleName, message);
return;
}
ILog log = Platform.getLog(bundle);
log.log(new Status(IStatus.ERROR, bundleName, message, error));
if ( cud != null ) EclipseAST.addProblemToCompilationResult(cud, false, message + " - See error log.", 0, 0);
}
static String toQualifiedName(char[][] typeName) {
StringBuilder sb = new StringBuilder();
boolean first = true;
for ( char[] c : typeName ) {
sb.append(first ? "" : ".").append(c);
first = false;
}
return sb.toString();
}
public static boolean annotationTypeMatches(Class<? extends java.lang.annotation.Annotation> type, Node node) {
if ( node.getKind() != Kind.ANNOTATION ) return false;
TypeReference typeRef = ((Annotation)node.get()).type;
if ( typeRef == null || typeRef.getTypeName() == null ) return false;
String typeName = toQualifiedName(typeRef.getTypeName());
TypeLibrary library = new TypeLibrary();
library.addType(type.getName());
TypeResolver resolver = new TypeResolver(library, node.getPackageDeclaration(), node.getImportStatements());
Collection<String> typeMatches = resolver.findTypeMatches(node, typeName);
for ( String match : typeMatches ) {
if ( match.equals(type.getName()) ) return true;
}
return false;
}
public static <A extends java.lang.annotation.Annotation> AnnotationValues<A>
createAnnotation(Class<A> type, final Node annotationNode) {
Annotation annotation = (Annotation) annotationNode.get();
Map<String, AnnotationValue> values = new HashMap<String, AnnotationValue>();
final MemberValuePair[] pairs = annotation.memberValuePairs();
for ( Method m : type.getDeclaredMethods() ) {
if ( !Modifier.isPublic(m.getModifiers()) ) continue;
String name = m.getName();
List<String> raws = new ArrayList<String>();
List<Object> guesses = new ArrayList<Object>();
Expression fullExpression = null;
Expression[] expressions = null;
if ( pairs != null ) for ( MemberValuePair pair : pairs ) {
char[] n = pair.name;
String mName = n == null ? "value" : new String(name);
if ( !mName.equals(name) ) continue;
fullExpression = pair.value;
}
if ( fullExpression != null ) {
if ( fullExpression instanceof ArrayInitializer ) {
expressions = ((ArrayInitializer)fullExpression).expressions;
} else expressions = new Expression[] { fullExpression };
for ( Expression ex : expressions ) {
StringBuffer sb = new StringBuffer();
ex.print(0, sb);
raws.add(sb.toString());
guesses.add(calculateValue(ex));
}
}
final Expression fullExpr = fullExpression;
final Expression[] exprs = expressions;
values.put(name, new AnnotationValue(annotationNode, raws, guesses) {
@Override public void setError(String message, int valueIdx) {
Expression ex;
if ( valueIdx == -1 ) ex = fullExpr;
else ex = exprs[valueIdx];
int sourceStart = ex.sourceStart;
int sourceEnd = ex.sourceEnd;
annotationNode.addError(message, sourceStart, sourceEnd);
}
});
}
return new AnnotationValues<A>(type, values, annotationNode);
}
private static Object calculateValue(Expression e) {
if ( e instanceof Literal ) {
((Literal)e).computeConstant();
switch ( e.constant.typeID() ) {
case TypeIds.T_int: return e.constant.intValue();
case TypeIds.T_byte: return e.constant.byteValue();
case TypeIds.T_short: return e.constant.shortValue();
case TypeIds.T_char: return e.constant.charValue();
case TypeIds.T_float: return e.constant.floatValue();
case TypeIds.T_double: return e.constant.doubleValue();
case TypeIds.T_boolean: return e.constant.booleanValue();
case TypeIds.T_long: return e.constant.longValue();
case TypeIds.T_JavaLangString: return e.constant.stringValue();
default: return null;
}
} else if ( e instanceof ClassLiteralAccess ) {
return Eclipse.toQualifiedName(((ClassLiteralAccess)e).type.getTypeName());
} else if ( e instanceof SingleNameReference ) {
return new String(((SingleNameReference)e).token);
} else if ( e instanceof QualifiedNameReference ) {
String qName = Eclipse.toQualifiedName(((QualifiedNameReference)e).tokens);
int idx = qName.lastIndexOf('.');
return idx == -1 ? qName : qName.substring(idx+1);
}
return null;
}
}
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