/* * Copyright (C) 2009-2019 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.handlers; import static lombok.core.handlers.HandlerUtil.*; import static lombok.eclipse.Eclipse.*; import static lombok.eclipse.EclipseAugments.*; import static lombok.eclipse.handlers.EclipseHandlerUtil.EclipseReflectiveMembers.*; import java.lang.reflect.Constructor; import java.lang.reflect.Field; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import java.lang.reflect.Modifier; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.HashMap; import java.util.List; import java.util.Map; import lombok.AccessLevel; import lombok.ConfigurationKeys; import lombok.Data; import lombok.Getter; import lombok.Lombok; import lombok.core.AST.Kind; import lombok.core.AnnotationValues; import lombok.core.AnnotationValues.AnnotationValue; import lombok.core.TypeResolver; import lombok.core.configuration.NullCheckExceptionType; import lombok.core.configuration.TypeName; import lombok.core.debug.ProblemReporter; import lombok.core.handlers.HandlerUtil; import lombok.eclipse.Eclipse; import lombok.eclipse.EclipseAST; import lombok.eclipse.EclipseNode; import lombok.experimental.Accessors; import lombok.experimental.Tolerate; import lombok.permit.Permit; import org.eclipse.jdt.internal.compiler.ast.ASTNode; import org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration; import org.eclipse.jdt.internal.compiler.ast.AbstractVariableDeclaration; import org.eclipse.jdt.internal.compiler.ast.AllocationExpression; import org.eclipse.jdt.internal.compiler.ast.Annotation; import org.eclipse.jdt.internal.compiler.ast.ArrayInitializer; import org.eclipse.jdt.internal.compiler.ast.ArrayQualifiedTypeReference; import org.eclipse.jdt.internal.compiler.ast.ArrayTypeReference; import org.eclipse.jdt.internal.compiler.ast.AssertStatement; import org.eclipse.jdt.internal.compiler.ast.Block; import org.eclipse.jdt.internal.compiler.ast.CastExpression; import org.eclipse.jdt.internal.compiler.ast.CharLiteral; import org.eclipse.jdt.internal.compiler.ast.ClassLiteralAccess; import org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration; import org.eclipse.jdt.internal.compiler.ast.ConstructorDeclaration; import org.eclipse.jdt.internal.compiler.ast.DoubleLiteral; import org.eclipse.jdt.internal.compiler.ast.EqualExpression; import org.eclipse.jdt.internal.compiler.ast.Expression; import org.eclipse.jdt.internal.compiler.ast.ExtendedStringLiteral; import org.eclipse.jdt.internal.compiler.ast.FalseLiteral; import org.eclipse.jdt.internal.compiler.ast.FieldDeclaration; import org.eclipse.jdt.internal.compiler.ast.FieldReference; import org.eclipse.jdt.internal.compiler.ast.FloatLiteral; import org.eclipse.jdt.internal.compiler.ast.IfStatement; import org.eclipse.jdt.internal.compiler.ast.IntLiteral; import org.eclipse.jdt.internal.compiler.ast.Literal; import org.eclipse.jdt.internal.compiler.ast.LongLiteral; import org.eclipse.jdt.internal.compiler.ast.MarkerAnnotation; import org.eclipse.jdt.internal.compiler.ast.MemberValuePair; import org.eclipse.jdt.internal.compiler.ast.MessageSend; import org.eclipse.jdt.internal.compiler.ast.MethodDeclaration; import org.eclipse.jdt.internal.compiler.ast.NameReference; import org.eclipse.jdt.internal.compiler.ast.NormalAnnotation; import org.eclipse.jdt.internal.compiler.ast.NullLiteral; import org.eclipse.jdt.internal.compiler.ast.OperatorIds; import org.eclipse.jdt.internal.compiler.ast.ParameterizedQualifiedTypeReference; import org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference; import org.eclipse.jdt.internal.compiler.ast.QualifiedNameReference; import org.eclipse.jdt.internal.compiler.ast.QualifiedTypeReference; import org.eclipse.jdt.internal.compiler.ast.SingleMemberAnnotation; import org.eclipse.jdt.internal.compiler.ast.SingleNameReference; import org.eclipse.jdt.internal.compiler.ast.SingleTypeReference; import org.eclipse.jdt.internal.compiler.ast.Statement; import org.eclipse.jdt.internal.compiler.ast.StringLiteral; import org.eclipse.jdt.internal.compiler.ast.StringLiteralConcatenation; import org.eclipse.jdt.internal.compiler.ast.ThisReference; import org.eclipse.jdt.internal.compiler.ast.ThrowStatement; import org.eclipse.jdt.internal.compiler.ast.TrueLiteral; import org.eclipse.jdt.internal.compiler.ast.TypeDeclaration; import org.eclipse.jdt.internal.compiler.ast.TypeParameter; import org.eclipse.jdt.internal.compiler.ast.TypeReference; import org.eclipse.jdt.internal.compiler.ast.Wildcard; import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants; import org.eclipse.jdt.internal.compiler.lookup.Binding; import org.eclipse.jdt.internal.compiler.lookup.CaptureBinding; import org.eclipse.jdt.internal.compiler.lookup.ParameterizedTypeBinding; import org.eclipse.jdt.internal.compiler.lookup.RawTypeBinding; import org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding; import org.eclipse.jdt.internal.compiler.lookup.TypeBinding; import org.eclipse.jdt.internal.compiler.lookup.TypeConstants; import org.eclipse.jdt.internal.compiler.lookup.TypeIds; import org.eclipse.jdt.internal.compiler.lookup.WildcardBinding; /** * Container for static utility methods useful to handlers written for eclipse. */ public class EclipseHandlerUtil { private EclipseHandlerUtil() { //Prevent instantiation } /** * Generates an error in the Eclipse error log. Note that most people never look at it! * * @param cud The {@code CompilationUnitDeclaration} where the error occurred. * An error will be generated on line 0 linking to the error log entry. Can be {@code null}. * @param message Human readable description of the problem. * @param ex The associated exception. Can be {@code null}. */ public static void error(CompilationUnitDeclaration cud, String message, Throwable ex) { ProblemReporter.error(message, ex); if (cud != null) EclipseAST.addProblemToCompilationResult(cud.getFileName(), cud.compilationResult, false, message + " - See error log.", 0, 0); } /** * Generates a warning in the Eclipse error log. Note that most people never look at it! * * @param message Human readable description of the problem. * @param ex The associated exception. Can be {@code null}. */ public static void warning(String message, Throwable ex) { ProblemReporter.warning(message, ex); } public static ASTNode getGeneratedBy(ASTNode node) { return ASTNode_generatedBy.get(node); } public static boolean isGenerated(ASTNode node) { return getGeneratedBy(node) != null; } public static T setGeneratedBy(T node, ASTNode source) { ASTNode_generatedBy.set(node, source); return node; } public static MarkerAnnotation generateDeprecatedAnnotation(ASTNode source) { QualifiedTypeReference qtr = new QualifiedTypeReference(new char[][] { {'j', 'a', 'v', 'a'}, {'l', 'a', 'n', 'g'}, {'D', 'e', 'p', 'r', 'e', 'c', 'a', 't', 'e', 'd'}}, poss(source, 3)); setGeneratedBy(qtr, source); MarkerAnnotation ma = new MarkerAnnotation(qtr, source.sourceStart); // No matter what value you input for sourceEnd, the AST->DOM converter of eclipse will reparse to find the end, and will fail as // it can't find code that isn't really there. This results in the end position being set to 2 or 0 or some weird magic value, and thus, // length, as calculated by end-start, is all screwed up, resulting in IllegalArgumentException during a setSourceRange call MUCH later in the process. // We solve it by going with a voodoo magic source start value such that the calculated length so happens to exactly be 0. 0 lengths are accepted // by eclipse. For some reason. // TL;DR: Don't change 1. 1 is sacred. Trust the 1. // issue: #408. ma.sourceStart = 1; setGeneratedBy(ma, source); return ma; } public static boolean isFieldDeprecated(EclipseNode fieldNode) { if (!(fieldNode.get() instanceof FieldDeclaration)) return false; FieldDeclaration field = (FieldDeclaration) fieldNode.get(); if ((field.modifiers & ClassFileConstants.AccDeprecated) != 0) { return true; } if (field.annotations == null) return false; for (Annotation annotation : field.annotations) { if (typeMatches(Deprecated.class, fieldNode, annotation.type)) { return true; } } return false; } /** * Checks if the given TypeReference node is likely to be a reference to the provided class. * * @param type An actual type. This method checks if {@code typeNode} is likely to be a reference to this type. * @param node A Lombok AST node. Any node in the appropriate compilation unit will do (used to get access to import statements). * @param typeRef A type reference to check. */ public static boolean typeMatches(Class type, EclipseNode node, TypeReference typeRef) { if (typeRef == null || typeRef.getTypeName() == null || typeRef.getTypeName().length == 0) return false; String lastPartA = new String(typeRef.getTypeName()[typeRef.getTypeName().length -1]); String lastPartB = type.getSimpleName(); if (!lastPartA.equals(lastPartB)) return false; String typeName = toQualifiedName(typeRef.getTypeName()); TypeResolver resolver = new TypeResolver(node.getImportList()); return resolver.typeMatches(node, type.getName(), typeName); } /** * Checks if the given TypeReference node is likely to be a reference to the provided class. * * @param type An actual type. This method checks if {@code typeNode} is likely to be a reference to this type. * @param node A Lombok AST node. Any node in the appropriate compilation unit will do (used to get access to import statements). * @param typeRef A type reference to check. */ public static boolean typeMatches(String type, EclipseNode node, TypeReference typeRef) { char[][] tn = typeRef == null ? null : typeRef.getTypeName(); if (tn == null || tn.length == 0) return false; char[] lastPartA = tn[tn.length - 1]; int lastIndex = type.lastIndexOf('.') + 1; if (lastPartA.length != type.length() - lastIndex) return false; for (int i = 0; i < lastPartA.length; i++) if (lastPartA[i] != type.charAt(i + lastIndex)) return false; String typeName = toQualifiedName(tn); TypeResolver resolver = node.getImportListAsTypeResolver(); return resolver.typeMatches(node, type, typeName); } public static void sanityCheckForMethodGeneratingAnnotationsOnBuilderClass(EclipseNode typeNode, EclipseNode errorNode) { List disallowed = null; for (EclipseNode child : typeNode.down()) { if (child.getKind() != Kind.ANNOTATION) continue; for (String annType : INVALID_ON_BUILDERS) { if (annotationTypeMatches(annType, child)) { if (disallowed == null) disallowed = new ArrayList(); int lastIndex = annType.lastIndexOf('.'); disallowed.add(lastIndex == -1 ? annType : annType.substring(lastIndex + 1)); } } } int size = disallowed == null ? 0 : disallowed.size(); if (size == 0) return; if (size == 1) { errorNode.addError("@" + disallowed.get(0) + " is not allowed on builder classes."); return; } StringBuilder out = new StringBuilder(); for (String a : disallowed) out.append("@").append(a).append(", "); out.setLength(out.length() - 2); errorNode.addError(out.append(" are not allowed on builder classes.").toString()); } public static Annotation copyAnnotation(Annotation annotation, ASTNode source) { int pS = source.sourceStart, pE = source.sourceEnd; if (annotation instanceof MarkerAnnotation) { MarkerAnnotation ann = new MarkerAnnotation(copyType(annotation.type, source), pS); setGeneratedBy(ann, source); ann.declarationSourceEnd = ann.sourceEnd = ann.statementEnd = pE; try { reflectSet(ANNOTATION__MEMBER_VALUE_PAIR_NAME, ann, reflect(ANNOTATION__MEMBER_VALUE_PAIR_NAME, annotation)); } catch (Exception ignore) { /* Various eclipse versions don't have it */ } return ann; } if (annotation instanceof SingleMemberAnnotation) { SingleMemberAnnotation ann = new SingleMemberAnnotation(copyType(annotation.type, source), pS); setGeneratedBy(ann, source); ann.declarationSourceEnd = ann.sourceEnd = ann.statementEnd = pE; ann.memberValue = copyAnnotationMemberValue(((SingleMemberAnnotation) annotation).memberValue); try { reflectSet(ANNOTATION__MEMBER_VALUE_PAIR_NAME, ann, reflect(ANNOTATION__MEMBER_VALUE_PAIR_NAME, annotation)); } catch (Exception ignore) { /* Various eclipse versions don't have it */ } return ann; } if (annotation instanceof NormalAnnotation) { NormalAnnotation ann = new NormalAnnotation(copyType(annotation.type, source), pS); setGeneratedBy(ann, source); ann.declarationSourceEnd = ann.statementEnd = ann.sourceEnd = pE; MemberValuePair[] inPairs = ((NormalAnnotation) annotation).memberValuePairs; if (inPairs == null) { ann.memberValuePairs = null; } else { ann.memberValuePairs = new MemberValuePair[inPairs.length]; for (int i = 0; i < inPairs.length; i++) ann.memberValuePairs[i] = new MemberValuePair(inPairs[i].name, inPairs[i].sourceStart, inPairs[i].sourceEnd, copyAnnotationMemberValue(inPairs[i].value)); } try { reflectSet(ANNOTATION__MEMBER_VALUE_PAIR_NAME, ann, reflect(ANNOTATION__MEMBER_VALUE_PAIR_NAME, annotation)); } catch (Exception ignore) { /* Various eclipse versions don't have it */ } return ann; } return annotation; } static class EclipseReflectiveMembers { public static final Field STRING_LITERAL__LINE_NUMBER; public static final Field ANNOTATION__MEMBER_VALUE_PAIR_NAME; public static final Field TYPE_REFERENCE__ANNOTATIONS; public static final Class INTERSECTION_BINDING; public static final Field INTERSECTION_BINDING_TYPES; static { STRING_LITERAL__LINE_NUMBER = getField(StringLiteral.class, "lineNumber"); ANNOTATION__MEMBER_VALUE_PAIR_NAME = getField(Annotation.class, "memberValuePairName"); TYPE_REFERENCE__ANNOTATIONS = getField(TypeReference.class, "annotations"); INTERSECTION_BINDING = getClass("org.eclipse.jdt.internal.compiler.lookup.IntersectionTypeBinding18"); INTERSECTION_BINDING_TYPES = INTERSECTION_BINDING == null ? null : getField(INTERSECTION_BINDING, "intersectingTypes"); } public static int reflectInt(Field f, Object o) { try { return ((Number) f.get(o)).intValue(); } catch (IllegalAccessException e) { throw new RuntimeException(e); } } public static void reflectSet(Field f, Object o, Object v) { try { f.set(o, v); } catch (IllegalAccessException e) { throw new RuntimeException(e); } } public static Object reflect(Field f, Object o) { try { return f.get(o); } catch (IllegalAccessException e) { throw new RuntimeException(e); } } private static Class getClass(String fqn) { try { return Class.forName(fqn); } catch (Exception e) { return null; } } private static Field getField(Class c, String fName) { try { return Permit.getField(c, fName); } catch (Exception e) { return null; } } } private static Expression copyAnnotationMemberValue(Expression in) { Expression out = copyAnnotationMemberValue0(in); out.constant = in.constant; return out; } private static Expression copyAnnotationMemberValue0(Expression in) { int s = in.sourceStart, e = in.sourceEnd; // literals if (in instanceof FalseLiteral) return new FalseLiteral(s, e); if (in instanceof TrueLiteral) return new TrueLiteral(s, e); if (in instanceof NullLiteral) return new NullLiteral(s, e); if (in instanceof CharLiteral) return new CharLiteral(((Literal) in).source(), s, e); if (in instanceof DoubleLiteral) return new DoubleLiteral(((Literal) in).source(), s, e); if (in instanceof FloatLiteral) return new FloatLiteral(((Literal) in).source(), s, e); if (in instanceof IntLiteral) return IntLiteral.buildIntLiteral(((Literal) in).source(), s, e); if (in instanceof LongLiteral) return LongLiteral.buildLongLiteral(((Literal) in).source(), s, e); if (in instanceof StringLiteral) return new StringLiteral(((Literal) in).source(), s, e, reflectInt(STRING_LITERAL__LINE_NUMBER, in) + 1); if (in instanceof ExtendedStringLiteral) { StringLiteral str = new StringLiteral(((Literal) in).source(), s, e, reflectInt(STRING_LITERAL__LINE_NUMBER, in) + 1); StringLiteral empty = new StringLiteral(new char[0], s, e, reflectInt(STRING_LITERAL__LINE_NUMBER, in) + 1); return new ExtendedStringLiteral(str, empty); } if (in instanceof StringLiteralConcatenation) { Expression[] literals = ((StringLiteralConcatenation) in).literals; // 0 and 1 len shouldn't happen. if (literals.length == 0) return new StringLiteral(new char[0], s, e, 0); if (literals.length == 1) return copyAnnotationMemberValue0(literals[0]); StringLiteralConcatenation c = new StringLiteralConcatenation((StringLiteral) literals[0], (StringLiteral) literals[1]); for (int i = 2; i < literals.length; i++) c = c.extendsWith((StringLiteral) literals[i]); return c; } // enums and field accesses (as long as those are references to compile time constant literals that's also acceptable) if (in instanceof SingleNameReference) { SingleNameReference snr = (SingleNameReference) in; long p = (long) s << 32 | e; return new SingleNameReference(snr.token, p); } if (in instanceof QualifiedNameReference) { QualifiedNameReference qnr = (QualifiedNameReference) in; return new QualifiedNameReference(qnr.tokens, qnr.sourcePositions, s, e); } // class refs if (in instanceof ClassLiteralAccess) return new ClassLiteralAccess(e, copyType(((ClassLiteralAccess) in).type)); // arrays if (in instanceof ArrayInitializer) { Expression[] exprs = ((ArrayInitializer) in).expressions; Expression[] copy = new Expression[exprs.length]; for (int i = 0; i < exprs.length; i++) copy[i] = copyAnnotationMemberValue(exprs[i]); ArrayInitializer out = new ArrayInitializer(); out.sourceStart = s; out.sourceEnd = e; out.bits = in.bits; out.implicitConversion = in.implicitConversion; out.statementEnd = in.statementEnd; out.expressions = copy; return out; } return in; } /** * You can't share TypeParameter objects or bad things happen; for example, one 'T' resolves differently * from another 'T', even for the same T in a single class file. Unfortunately the TypeParameter type hierarchy * is complicated and there's no clone method on TypeParameter itself. This method can clone them. */ public static TypeParameter[] copyTypeParams(TypeParameter[] params, ASTNode source) { if (params == null) return null; TypeParameter[] out = new TypeParameter[params.length]; int idx = 0; for (TypeParameter param : params) { TypeParameter o = new TypeParameter(); setGeneratedBy(o, source); o.annotations = param.annotations; o.bits = param.bits; o.modifiers = param.modifiers; o.name = param.name; o.type = copyType(param.type, source); o.sourceStart = param.sourceStart; o.sourceEnd = param.sourceEnd; o.declarationEnd = param.declarationEnd; o.declarationSourceStart = param.declarationSourceStart; o.declarationSourceEnd = param.declarationSourceEnd; if (param.bounds != null) { TypeReference[] b = new TypeReference[param.bounds.length]; int idx2 = 0; for (TypeReference ref : param.bounds) b[idx2++] = copyType(ref, source); o.bounds = b; } out[idx++] = o; } return out; } public static Annotation[] getTypeUseAnnotations(TypeReference from) { Annotation[][] a; try { a = (Annotation[][]) reflect(TYPE_REFERENCE__ANNOTATIONS, from); } catch (Exception e) { return null; } if (a == null) return null; Annotation[] b = a[a.length - 1]; return b.length == 0 ? null : b; } public static void removeTypeUseAnnotations(TypeReference from) { try { reflectSet(TYPE_REFERENCE__ANNOTATIONS, from, null); } catch (Exception ignore) {} } public static TypeReference namePlusTypeParamsToTypeReference(char[] typeName, TypeParameter[] params, long p) { if (params != null && params.length > 0) { TypeReference[] refs = new TypeReference[params.length]; int idx = 0; for (TypeParameter param : params) { TypeReference typeRef = new SingleTypeReference(param.name, p); refs[idx++] = typeRef; } return new ParameterizedSingleTypeReference(typeName, refs, 0, p); } return new SingleTypeReference(typeName, p); } public static TypeReference[] copyTypes(TypeReference[] refs) { return copyTypes(refs, null); } /** * Convenience method that creates a new array and copies each TypeReference in the source array via * {@link #copyType(TypeReference, ASTNode)}. */ public static TypeReference[] copyTypes(TypeReference[] refs, ASTNode source) { if (refs == null) return null; TypeReference[] outs = new TypeReference[refs.length]; int idx = 0; for (TypeReference ref : refs) { outs[idx++] = copyType(ref, source); } return outs; } public static TypeReference copyType(TypeReference ref) { return copyType(ref, null); } /** * You can't share TypeReference objects or subtle errors start happening. * Unfortunately the TypeReference type hierarchy is complicated and there's no clone * method on TypeReference itself. This method can clone them. */ public static TypeReference copyType(TypeReference ref, ASTNode source) { if (ref instanceof ParameterizedQualifiedTypeReference) { ParameterizedQualifiedTypeReference iRef = (ParameterizedQualifiedTypeReference) ref; TypeReference[][] args = null; if (iRef.typeArguments != null) { args = new TypeReference[iRef.typeArguments.length][]; int idx = 0; for (TypeReference[] inRefArray : iRef.typeArguments) { if (inRefArray == null) args[idx++] = null; else { TypeReference[] outRefArray = new TypeReference[inRefArray.length]; int idx2 = 0; for (TypeReference inRef : inRefArray) { outRefArray[idx2++] = copyType(inRef, source); } args[idx++] = outRefArray; } } } TypeReference typeRef = new ParameterizedQualifiedTypeReference(iRef.tokens, args, iRef.dimensions(), copy(iRef.sourcePositions)); copyTypeAnns(ref, typeRef); if (source != null) setGeneratedBy(typeRef, source); return typeRef; } if (ref instanceof ArrayQualifiedTypeReference) { ArrayQualifiedTypeReference iRef = (ArrayQualifiedTypeReference) ref; TypeReference typeRef = new ArrayQualifiedTypeReference(iRef.tokens, iRef.dimensions(), copy(iRef.sourcePositions)); copyTypeAnns(ref, typeRef); if (source != null) setGeneratedBy(typeRef, source); return typeRef; } if (ref instanceof QualifiedTypeReference) { QualifiedTypeReference iRef = (QualifiedTypeReference) ref; TypeReference typeRef = new QualifiedTypeReference(iRef.tokens, copy(iRef.sourcePositions)); copyTypeAnns(ref, typeRef); if (source != null) setGeneratedBy(typeRef, source); return typeRef; } if (ref instanceof ParameterizedSingleTypeReference) { ParameterizedSingleTypeReference iRef = (ParameterizedSingleTypeReference) ref; TypeReference[] args = null; if (iRef.typeArguments != null) { args = new TypeReference[iRef.typeArguments.length]; int idx = 0; for (TypeReference inRef : iRef.typeArguments) { if (inRef == null) args[idx++] = null; else args[idx++] = copyType(inRef, source); } } TypeReference typeRef = new ParameterizedSingleTypeReference(iRef.token, args, iRef.dimensions(), (long) iRef.sourceStart << 32 | iRef.sourceEnd); copyTypeAnns(ref, typeRef); if (source != null) setGeneratedBy(typeRef, source); return typeRef; } if (ref instanceof ArrayTypeReference) { ArrayTypeReference iRef = (ArrayTypeReference) ref; TypeReference typeRef = new ArrayTypeReference(iRef.token, iRef.dimensions(), (long) iRef.sourceStart << 32 | iRef.sourceEnd); copyTypeAnns(ref, typeRef); if (source != null) setGeneratedBy(typeRef, source); return typeRef; } if (ref instanceof Wildcard) { Wildcard original = (Wildcard) ref; Wildcard wildcard = new Wildcard(original.kind); wildcard.sourceStart = original.sourceStart; wildcard.sourceEnd = original.sourceEnd; if (original.bound != null) wildcard.bound = copyType(original.bound, source); copyTypeAnns(ref, wildcard); if (source != null) setGeneratedBy(wildcard, source); return wildcard; } if (ref instanceof SingleTypeReference) { SingleTypeReference iRef = (SingleTypeReference) ref; TypeReference typeRef = new SingleTypeReference(iRef.token, (long) iRef.sourceStart << 32 | iRef.sourceEnd); copyTypeAnns(ref, typeRef); if (source != null) setGeneratedBy(typeRef, source); return typeRef; } return ref; } private static void copyTypeAnns(TypeReference in, TypeReference out) { Annotation[][] a; try { a = (Annotation[][]) reflect(TYPE_REFERENCE__ANNOTATIONS, in); } catch (Exception e) { return; } if (a == null) { reflectSet(TYPE_REFERENCE__ANNOTATIONS, out, null); return; } Annotation[][] b = new Annotation[a.length][]; for (int i = 0; i < a.length; i++) { b[i] = new Annotation[a[i].length]; for (int j = 0 ; j < a[i].length; j++) { b[i][j] = copyAnnotation(a[i][j], a[i][j]); } } reflectSet(TYPE_REFERENCE__ANNOTATIONS, out, b); } public static Annotation[] copyAnnotations(ASTNode source, Annotation[]... allAnnotations) { List result = null; for (Annotation[] annotations : allAnnotations) { if (annotations != null) { for (Annotation annotation : annotations) { if (result == null) result = new ArrayList(); result.add(copyAnnotation(annotation, source)); } } } return result == null ? null : result.toArray(new Annotation[0]); } public static Annotation[] mergeAnnotations(Annotation[] a, Annotation[] b) { if (a == null || a.length == 0) return (b == null || b.length == 0) ? null : b; if (b == null || b.length == 0) return a.length == 0 ? null : a; Annotation[] c = new Annotation[a.length + b.length]; System.arraycopy(a, 0, c, 0, a.length); System.arraycopy(b, 0, c, a.length, b.length); return c; } public static boolean hasAnnotation(Class type, EclipseNode node) { if (node == null) return false; if (type == null) return false; switch (node.getKind()) { case ARGUMENT: case FIELD: case LOCAL: case TYPE: case METHOD: for (EclipseNode child : node.down()) { if (annotationTypeMatches(type, child)) return true; } // intentional fallthrough default: return false; } } public static boolean hasAnnotation(String type, EclipseNode node) { if (node == null) return false; if (type == null) return false; switch (node.getKind()) { case ARGUMENT: case FIELD: case LOCAL: case TYPE: case METHOD: for (EclipseNode child : node.down()) { if (annotationTypeMatches(type, child)) return true; } // intentional fallthrough default: return false; } } public static EclipseNode findInnerClass(EclipseNode parent, String name) { char[] c = name.toCharArray(); for (EclipseNode child : parent.down()) { if (child.getKind() != Kind.TYPE) continue; TypeDeclaration td = (TypeDeclaration) child.get(); if (Arrays.equals(td.name, c)) return child; } return null; } public static EclipseNode findAnnotation(Class type, EclipseNode node) { if (node == null) return null; if (type == null) return null; switch (node.getKind()) { case ARGUMENT: case FIELD: case LOCAL: case TYPE: case METHOD: for (EclipseNode child : node.down()) { if (annotationTypeMatches(type, child)) return child; } // intentional fallthrough default: return null; } } public static boolean hasNonNullAnnotations(EclipseNode node) { AbstractVariableDeclaration avd = (AbstractVariableDeclaration) node.get(); if (avd.annotations == null) return false; for (Annotation annotation : avd.annotations) { TypeReference typeRef = annotation.type; if (typeRef != null && typeRef.getTypeName() != null) { for (String bn : NONNULL_ANNOTATIONS) if (typeMatches(bn, node, typeRef)) return true; } } return false; } public static boolean hasNonNullAnnotations(EclipseNode node, List anns) { if (anns == null) return false; for (Annotation annotation : anns) { TypeReference typeRef = annotation.type; if (typeRef != null && typeRef.getTypeName() != null) { for (String bn : NONNULL_ANNOTATIONS) if (typeMatches(bn, node, typeRef)) return true; } } return false; } private static final Annotation[] EMPTY_ANNOTATIONS_ARRAY = new Annotation[0]; /** * Searches the given field node for annotations and returns each one that is 'copyable' (either via configuration or from the base list). */ public static Annotation[] findCopyableAnnotations(EclipseNode node) { AbstractVariableDeclaration avd = (AbstractVariableDeclaration) node.get(); if (avd.annotations == null) return EMPTY_ANNOTATIONS_ARRAY; List result = new ArrayList(); List configuredCopyable = node.getAst().readConfiguration(ConfigurationKeys.COPYABLE_ANNOTATIONS); for (Annotation annotation : avd.annotations) { TypeReference typeRef = annotation.type; boolean match = false; if (typeRef != null && typeRef.getTypeName() != null) { for (TypeName cn : configuredCopyable) if (typeMatches(cn.toString(), node, typeRef)) { result.add(annotation); match = true; break; } if (!match) for (String bn : BASE_COPYABLE_ANNOTATIONS) if (typeMatches(bn, node, typeRef)) { result.add(annotation); break; } } } return result.toArray(EMPTY_ANNOTATIONS_ARRAY); } /** * Searches the given field node for annotations that are specifically intentioned to be copied to the setter. */ public static Annotation[] findCopyableToSetterAnnotations(EclipseNode node) { AbstractVariableDeclaration avd = (AbstractVariableDeclaration) node.get(); if (avd.annotations == null) return EMPTY_ANNOTATIONS_ARRAY; List result = new ArrayList(); for (Annotation annotation : avd.annotations) { TypeReference typeRef = annotation.type; if (typeRef != null && typeRef.getTypeName() != null) { for (String bn : COPY_TO_SETTER_ANNOTATIONS) if (typeMatches(bn, node, typeRef)) { result.add(annotation); break; } } } return result.toArray(EMPTY_ANNOTATIONS_ARRAY); } /** * Checks if the provided annotation type is likely to be the intended type for the given annotation node. * * This is a guess, but a decent one. */ public static boolean annotationTypeMatches(Class type, EclipseNode node) { if (node.getKind() != Kind.ANNOTATION) return false; return typeMatches(type, node, ((Annotation) node.get()).type); } /** * Checks if the provided annotation type is likely to be the intended type for the given annotation node. * * This is a guess, but a decent one. */ public static boolean annotationTypeMatches(String type, EclipseNode node) { if (node.getKind() != Kind.ANNOTATION) return false; return typeMatches(type, node, ((Annotation) node.get()).type); } public static TypeReference cloneSelfType(EclipseNode context) { return cloneSelfType(context, null); } public static TypeReference cloneSelfType(EclipseNode context, ASTNode source) { int pS = source == null ? 0 : source.sourceStart, pE = source == null ? 0 : source.sourceEnd; long p = (long) pS << 32 | pE; EclipseNode type = context; TypeReference result = null; while (type != null && type.getKind() != Kind.TYPE) type = type.up(); if (type != null && type.get() instanceof TypeDeclaration) { TypeDeclaration typeDecl = (TypeDeclaration) type.get(); if (typeDecl.typeParameters != null && typeDecl.typeParameters.length > 0) { TypeReference[] refs = new TypeReference[typeDecl.typeParameters.length]; int idx = 0; for (TypeParameter param : typeDecl.typeParameters) { TypeReference typeRef = new SingleTypeReference(param.name, (long)param.sourceStart << 32 | param.sourceEnd); if (source != null) setGeneratedBy(typeRef, source); refs[idx++] = typeRef; } result = new ParameterizedSingleTypeReference(typeDecl.name, refs, 0, p); } else { result = new SingleTypeReference(((TypeDeclaration)type.get()).name, p); } } if (result != null && source != null) setGeneratedBy(result, source); return result; } public static TypeReference makeType(TypeBinding binding, ASTNode pos, boolean allowCompound) { if (binding.getClass() == EclipseReflectiveMembers.INTERSECTION_BINDING) { Object[] arr = (Object[]) EclipseReflectiveMembers.reflect(EclipseReflectiveMembers.INTERSECTION_BINDING_TYPES, binding); binding = (TypeBinding) arr[0]; } int dims = binding.dimensions(); binding = binding.leafComponentType(); // Primitives char[] base = null; switch (binding.id) { case TypeIds.T_int: base = TypeConstants.INT; break; case TypeIds.T_long: base = TypeConstants.LONG; break; case TypeIds.T_short: base = TypeConstants.SHORT; break; case TypeIds.T_byte: base = TypeConstants.BYTE; break; case TypeIds.T_double: base = TypeConstants.DOUBLE; break; case TypeIds.T_float: base = TypeConstants.FLOAT; break; case TypeIds.T_boolean: base = TypeConstants.BOOLEAN; break; case TypeIds.T_char: base = TypeConstants.CHAR; break; case TypeIds.T_void: base = TypeConstants.VOID; break; case TypeIds.T_null: return null; } if (base != null) { if (dims > 0) { TypeReference result = new ArrayTypeReference(base, dims, pos(pos)); setGeneratedBy(result, pos); return result; } TypeReference result = new SingleTypeReference(base, pos(pos)); setGeneratedBy(result, pos); return result; } if (binding.isAnonymousType()) { ReferenceBinding ref = (ReferenceBinding)binding; ReferenceBinding[] supers = ref.superInterfaces(); if (supers == null || supers.length == 0) supers = new ReferenceBinding[] {ref.superclass()}; if (supers[0] == null) { TypeReference result = new QualifiedTypeReference(TypeConstants.JAVA_LANG_OBJECT, poss(pos, 3)); setGeneratedBy(result, pos); return result; } return makeType(supers[0], pos, false); } if (binding instanceof CaptureBinding) { return makeType(((CaptureBinding)binding).wildcard, pos, allowCompound); } if (binding.isUnboundWildcard()) { if (!allowCompound) { TypeReference result = new QualifiedTypeReference(TypeConstants.JAVA_LANG_OBJECT, poss(pos, 3)); setGeneratedBy(result, pos); return result; } else { Wildcard out = new Wildcard(Wildcard.UNBOUND); setGeneratedBy(out, pos); out.sourceStart = pos.sourceStart; out.sourceEnd = pos.sourceEnd; return out; } } if (binding.isWildcard()) { WildcardBinding wildcard = (WildcardBinding) binding; if (wildcard.boundKind == Wildcard.EXTENDS) { if (!allowCompound) { TypeBinding bound = wildcard.bound; boolean isObject = bound.id == TypeIds.T_JavaLangObject; TypeBinding[] otherBounds = wildcard.otherBounds; if (isObject && otherBounds != null && otherBounds.length > 0) { return makeType(otherBounds[0], pos, false); } else return makeType(bound, pos, false); } else { Wildcard out = new Wildcard(Wildcard.EXTENDS); setGeneratedBy(out, pos); out.bound = makeType(wildcard.bound, pos, false); out.sourceStart = pos.sourceStart; out.sourceEnd = pos.sourceEnd; return out; } } else if (allowCompound && wildcard.boundKind == Wildcard.SUPER) { Wildcard out = new Wildcard(Wildcard.SUPER); setGeneratedBy(out, pos); out.bound = makeType(wildcard.bound, pos, false); out.sourceStart = pos.sourceStart; out.sourceEnd = pos.sourceEnd; return out; } else { TypeReference result = new QualifiedTypeReference(TypeConstants.JAVA_LANG_OBJECT, poss(pos, 3)); setGeneratedBy(result, pos); return result; } } // Keep moving up via 'binding.enclosingType()' and gather generics from each binding. We stop after a local type, or a static type, or a top-level type. // Finally, add however many nullTypeArgument[] arrays as that are missing, inverse the list, toArray it, and use that as PTR's typeArgument argument. List params = new ArrayList(); /* Calculate generics */ if (!(binding instanceof RawTypeBinding)) { TypeBinding b = binding; while (true) { boolean isFinalStop = b.isLocalType() || !b.isMemberType() || b.enclosingType() == null; TypeReference[] tyParams = null; if (b instanceof ParameterizedTypeBinding) { ParameterizedTypeBinding paramized = (ParameterizedTypeBinding) b; if (paramized.arguments != null) { tyParams = new TypeReference[paramized.arguments.length]; for (int i = 0; i < tyParams.length; i++) { tyParams[i] = makeType(paramized.arguments[i], pos, true); } } } params.add(tyParams); if (isFinalStop) break; b = b.enclosingType(); } } char[][] parts; if (binding.isTypeVariable()) { parts = new char[][] { binding.shortReadableName() }; } else if (binding.isLocalType()) { parts = new char[][] { binding.sourceName() }; } else { String[] pkg = new String(binding.qualifiedPackageName()).split("\\."); String[] name = new String(binding.qualifiedSourceName()).split("\\."); if (pkg.length == 1 && pkg[0].isEmpty()) pkg = new String[0]; parts = new char[pkg.length + name.length][]; int ptr; for (ptr = 0; ptr < pkg.length; ptr++) parts[ptr] = pkg[ptr].toCharArray(); for (; ptr < pkg.length + name.length; ptr++) parts[ptr] = name[ptr - pkg.length].toCharArray(); } while (params.size() < parts.length) params.add(null); Collections.reverse(params); boolean isParamized = false; for (TypeReference[] tyParams : params) { if (tyParams != null) { isParamized = true; break; } } if (isParamized) { if (parts.length > 1) { TypeReference[][] typeArguments = params.toArray(new TypeReference[0][]); TypeReference result = new ParameterizedQualifiedTypeReference(parts, typeArguments, dims, poss(pos, parts.length)); setGeneratedBy(result, pos); return result; } TypeReference result = new ParameterizedSingleTypeReference(parts[0], params.get(0), dims, pos(pos)); setGeneratedBy(result, pos); return result; } if (dims > 0) { if (parts.length > 1) { TypeReference result = new ArrayQualifiedTypeReference(parts, dims, poss(pos, parts.length)); setGeneratedBy(result, pos); return result; } TypeReference result = new ArrayTypeReference(parts[0], dims, pos(pos)); setGeneratedBy(result, pos); return result; } if (parts.length > 1) { TypeReference result = new QualifiedTypeReference(parts, poss(pos, parts.length)); setGeneratedBy(result, pos); return result; } TypeReference result = new SingleTypeReference(parts[0], pos(pos)); setGeneratedBy(result, pos); return result; } /** * Provides AnnotationValues with the data it needs to do its thing. */ public static AnnotationValues createAnnotation(Class type, final EclipseNode annotationNode) { final Annotation annotation = (Annotation) annotationNode.get(); Map values = new HashMap(); MemberValuePair[] memberValuePairs = annotation.memberValuePairs(); if (memberValuePairs != null) for (final MemberValuePair pair : memberValuePairs) { List raws = new ArrayList(); List expressionValues = new ArrayList(); List guesses = new ArrayList(); Expression[] expressions = null; char[] n = pair.name; String mName = (n == null || n.length == 0) ? "value" : new String(pair.name); final Expression rhs = pair.value; if (rhs instanceof ArrayInitializer) { expressions = ((ArrayInitializer) rhs).expressions; } else if (rhs != null) { expressions = new Expression[] { rhs }; } if (expressions != null) for (Expression ex : expressions) { StringBuffer sb = new StringBuffer(); ex.print(0, sb); raws.add(sb.toString()); expressionValues.add(ex); guesses.add(calculateValue(ex)); } final Expression[] exprs = expressions; values.put(mName, new AnnotationValue(annotationNode, raws, expressionValues, guesses, true) { @Override public void setError(String message, int valueIdx) { Expression ex; if (valueIdx == -1) ex = rhs; else ex = exprs != null ? exprs[valueIdx] : null; if (ex == null) ex = annotation; int sourceStart = ex.sourceStart; int sourceEnd = ex.sourceEnd; annotationNode.addError(message, sourceStart, sourceEnd); } @Override public void setWarning(String message, int valueIdx) { Expression ex; if (valueIdx == -1) ex = rhs; else ex = exprs != null ? exprs[valueIdx] : null; if (ex == null) ex = annotation; int sourceStart = ex.sourceStart; int sourceEnd = ex.sourceEnd; annotationNode.addWarning(message, sourceStart, sourceEnd); } }); } for (Method m : type.getDeclaredMethods()) { if (!Modifier.isPublic(m.getModifiers())) continue; String name = m.getName(); if (!values.containsKey(name)) { values.put(name, new AnnotationValue(annotationNode, new ArrayList(), new ArrayList(), new ArrayList(), false) { @Override public void setError(String message, int valueIdx) { annotationNode.addError(message); } @Override public void setWarning(String message, int valueIdx) { annotationNode.addWarning(message); } }); } } return new AnnotationValues(type, values, annotationNode); } /** * Turns an {@code AccessLevel} instance into the flag bit used by eclipse. */ public static int toEclipseModifier(AccessLevel value) { switch (value) { case MODULE: case PACKAGE: return 0; default: case PUBLIC: return ClassFileConstants.AccPublic; case PROTECTED: return ClassFileConstants.AccProtected; case NONE: case PRIVATE: return ClassFileConstants.AccPrivate; } } private static class GetterMethod { private final char[] name; private final TypeReference type; GetterMethod(char[] name, TypeReference type) { this.name = name; this.type = type; } } static void registerCreatedLazyGetter(FieldDeclaration field, char[] methodName, TypeReference returnType) { if (isBoolean(returnType)) { FieldDeclaration_booleanLazyGetter.set(field, true); } } public static boolean isBoolean(TypeReference typeReference) { return nameEquals(typeReference.getTypeName(), "boolean") && typeReference.dimensions() == 0; } private static GetterMethod findGetter(EclipseNode field) { FieldDeclaration fieldDeclaration = (FieldDeclaration) field.get(); boolean forceBool = FieldDeclaration_booleanLazyGetter.get(fieldDeclaration); TypeReference fieldType = fieldDeclaration.type; boolean isBoolean = forceBool || isBoolean(fieldType); EclipseNode typeNode = field.up(); for (String potentialGetterName : toAllGetterNames(field, isBoolean)) { for (EclipseNode potentialGetter : typeNode.down()) { if (potentialGetter.getKind() != Kind.METHOD) continue; if (!(potentialGetter.get() instanceof MethodDeclaration)) continue; MethodDeclaration method = (MethodDeclaration) potentialGetter.get(); if (!potentialGetterName.equalsIgnoreCase(new String(method.selector))) continue; /** static getX() methods don't count. */ if ((method.modifiers & ClassFileConstants.AccStatic) != 0) continue; /** Nor do getters with a non-empty parameter list. */ if (method.arguments != null && method.arguments.length > 0) continue; return new GetterMethod(method.selector, method.returnType); } } // Check if the field has a @Getter annotation. boolean hasGetterAnnotation = false; for (EclipseNode child : field.down()) { if (child.getKind() == Kind.ANNOTATION && annotationTypeMatches(Getter.class, child)) { AnnotationValues ann = createAnnotation(Getter.class, child); if (ann.getInstance().value() == AccessLevel.NONE) return null; //Definitely WONT have a getter. hasGetterAnnotation = true; } } // Check if the class has a @Getter annotation. if (!hasGetterAnnotation && HandleGetter.fieldQualifiesForGetterGeneration(field)) { //Check if the class has @Getter or @Data annotation. EclipseNode containingType = field.up(); if (containingType != null) for (EclipseNode child : containingType.down()) { if (child.getKind() == Kind.ANNOTATION && annotationTypeMatches(Data.class, child)) hasGetterAnnotation = true; if (child.getKind() == Kind.ANNOTATION && annotationTypeMatches(Getter.class, child)) { AnnotationValues ann = createAnnotation(Getter.class, child); if (ann.getInstance().value() == AccessLevel.NONE) return null; //Definitely WONT have a getter. hasGetterAnnotation = true; } } } if (hasGetterAnnotation) { String getterName = toGetterName(field, isBoolean); if (getterName == null) return null; return new GetterMethod(getterName.toCharArray(), fieldType); } return null; } static boolean lookForGetter(EclipseNode field, FieldAccess fieldAccess) { if (fieldAccess == FieldAccess.GETTER) return true; if (fieldAccess == FieldAccess.ALWAYS_FIELD) return false; // If @Getter(lazy = true) is used, then using it is mandatory. for (EclipseNode child : field.down()) { if (child.getKind() != Kind.ANNOTATION) continue; if (annotationTypeMatches(Getter.class, child)) { AnnotationValues ann = createAnnotation(Getter.class, child); if (ann.getInstance().lazy()) return true; } } return false; } static TypeReference getFieldType(EclipseNode field, FieldAccess fieldAccess) { if (field.get() instanceof MethodDeclaration) return ((MethodDeclaration) field.get()).returnType; boolean lookForGetter = lookForGetter(field, fieldAccess); GetterMethod getter = lookForGetter ? findGetter(field) : null; if (getter == null) { return ((FieldDeclaration) field.get()).type; } return getter.type; } static Expression createFieldAccessor(EclipseNode field, FieldAccess fieldAccess, ASTNode source) { int pS = source == null ? 0 : source.sourceStart, pE = source == null ? 0 : source.sourceEnd; long p = (long) pS << 32 | pE; boolean lookForGetter = lookForGetter(field, fieldAccess); GetterMethod getter = lookForGetter ? findGetter(field) : null; if (getter == null) { FieldDeclaration fieldDecl = (FieldDeclaration)field.get(); FieldReference ref = new FieldReference(fieldDecl.name, p); if ((fieldDecl.modifiers & ClassFileConstants.AccStatic) != 0) { EclipseNode containerNode = field.up(); if (containerNode != null && containerNode.get() instanceof TypeDeclaration) { ref.receiver = new SingleNameReference(((TypeDeclaration)containerNode.get()).name, p); } else { Expression smallRef = new FieldReference(field.getName().toCharArray(), p); if (source != null) setGeneratedBy(smallRef, source); return smallRef; } } else { ref.receiver = new ThisReference(pS, pE); } if (source != null) { setGeneratedBy(ref, source); setGeneratedBy(ref.receiver, source); } return ref; } MessageSend call = new MessageSend(); setGeneratedBy(call, source); call.sourceStart = pS; call.statementEnd = call.sourceEnd = pE; call.receiver = new ThisReference(pS, pE); setGeneratedBy(call.receiver, source); call.selector = getter.name; return call; } static Expression createFieldAccessor(EclipseNode field, FieldAccess fieldAccess, ASTNode source, char[] receiver) { int pS = source.sourceStart, pE = source.sourceEnd; long p = (long)pS << 32 | pE; boolean lookForGetter = lookForGetter(field, fieldAccess); GetterMethod getter = lookForGetter ? findGetter(field) : null; if (getter == null) { NameReference ref; char[][] tokens = new char[2][]; tokens[0] = receiver; tokens[1] = field.getName().toCharArray(); long[] poss = {p, p}; ref = new QualifiedNameReference(tokens, poss, pS, pE); setGeneratedBy(ref, source); return ref; } MessageSend call = new MessageSend(); setGeneratedBy(call, source); call.sourceStart = pS; call.statementEnd = call.sourceEnd = pE; call.receiver = new SingleNameReference(receiver, p); setGeneratedBy(call.receiver, source); call.selector = getter.name; return call; } static Expression createMethodAccessor(EclipseNode method, ASTNode source) { int pS = source == null ? 0 : source.sourceStart, pE = source == null ? 0 : source.sourceEnd; long p = (long) pS << 32 | pE; MethodDeclaration methodDecl = (MethodDeclaration) method.get(); MessageSend call = new MessageSend(); setGeneratedBy(call, source); call.sourceStart = pS; call.statementEnd = call.sourceEnd = pE; if ((methodDecl.modifiers & ClassFileConstants.AccStatic) == 0) { call.receiver = new ThisReference(pS, pE); setGeneratedBy(call.receiver, source); } else { EclipseNode containerNode = method.up(); if (containerNode != null && containerNode.get() instanceof TypeDeclaration) { call.receiver = new SingleNameReference(((TypeDeclaration) containerNode.get()).name, p); setGeneratedBy(call.receiver, source); } } call.selector = methodDecl.selector; return call; } static Expression createMethodAccessor(EclipseNode method, ASTNode source, char[] receiver) { int pS = source == null ? 0 : source.sourceStart, pE = source == null ? 0 : source.sourceEnd; long p = (long) pS << 32 | pE; MethodDeclaration methodDecl = (MethodDeclaration) method.get(); MessageSend call = new MessageSend(); setGeneratedBy(call, source); call.sourceStart = pS; call.statementEnd = call.sourceEnd = pE; call.receiver = new SingleNameReference(receiver, p); setGeneratedBy(call.receiver, source); call.selector = methodDecl.selector; return call; } /** Serves as return value for the methods that check for the existence of fields and methods. */ public enum MemberExistsResult { NOT_EXISTS, EXISTS_BY_LOMBOK, EXISTS_BY_USER; } /** * Translates the given field into all possible getter names. * Convenient wrapper around {@link TransformationsUtil#toAllGetterNames(lombok.core.AnnotationValues, CharSequence, boolean)}. */ public static List toAllGetterNames(EclipseNode field, boolean isBoolean) { return HandlerUtil.toAllGetterNames(field.getAst(), getAccessorsForField(field), field.getName(), isBoolean); } /** * @return the likely getter name for the stated field. (e.g. private boolean foo; to isFoo). * * Convenient wrapper around {@link TransformationsUtil#toGetterName(lombok.core.AnnotationValues, CharSequence, boolean)}. */ public static String toGetterName(EclipseNode field, boolean isBoolean) { return HandlerUtil.toGetterName(field.getAst(), getAccessorsForField(field), field.getName(), isBoolean); } /** * Translates the given field into all possible setter names. * Convenient wrapper around {@link TransformationsUtil#toAllSetterNames(lombok.core.AnnotationValues, CharSequence, boolean)}. */ public static java.util.List toAllSetterNames(EclipseNode field, boolean isBoolean) { return HandlerUtil.toAllSetterNames(field.getAst(), getAccessorsForField(field), field.getName(), isBoolean); } /** * @return the likely setter name for the stated field. (e.g. private boolean foo; to setFoo). * * Convenient wrapper around {@link TransformationsUtil#toSetterName(lombok.core.AnnotationValues, CharSequence, boolean)}. */ public static String toSetterName(EclipseNode field, boolean isBoolean) { return HandlerUtil.toSetterName(field.getAst(), getAccessorsForField(field), field.getName(), isBoolean); } /** * Translates the given field into all possible wither names. * Convenient wrapper around {@link TransformationsUtil#toAllWitherNames(lombok.core.AnnotationValues, CharSequence, boolean)}. */ public static java.util.List toAllWitherNames(EclipseNode field, boolean isBoolean) { return HandlerUtil.toAllWitherNames(field.getAst(), getAccessorsForField(field), field.getName(), isBoolean); } /** * @return the likely wither name for the stated field. (e.g. private boolean foo; to withFoo). * * Convenient wrapper around {@link TransformationsUtil#toWitherName(lombok.core.AnnotationValues, CharSequence, boolean)}. */ public static String toWitherName(EclipseNode field, boolean isBoolean) { return HandlerUtil.toWitherName(field.getAst(), getAccessorsForField(field), field.getName(), isBoolean); } /** * When generating a setter, the setter either returns void (beanspec) or Self (fluent). * This method scans for the {@code Accessors} annotation and associated config properties to figure that out. */ public static boolean shouldReturnThis(EclipseNode field) { if ((((FieldDeclaration) field.get()).modifiers & ClassFileConstants.AccStatic) != 0) return false; AnnotationValues accessors = EclipseHandlerUtil.getAccessorsForField(field); return shouldReturnThis0(accessors, field.getAst()); } /** * Checks if the field should be included in operations that work on 'all' fields: * If the field is static, or starts with a '$', or is actually an enum constant, 'false' is returned, indicating you should skip it. */ public static boolean filterField(FieldDeclaration declaration) { return filterField(declaration, true); } public static boolean filterField(FieldDeclaration declaration, boolean skipStatic) { // Skip the fake fields that represent enum constants. if (declaration.initialization instanceof AllocationExpression && ((AllocationExpression) declaration.initialization).enumConstant != null) return false; if (declaration.type == null) return false; // Skip fields that start with $ if (declaration.name.length > 0 && declaration.name[0] == '$') return false; // Skip static fields. if (skipStatic && (declaration.modifiers & ClassFileConstants.AccStatic) != 0) return false; return true; } public static char[] removePrefixFromField(EclipseNode field) { List prefixes = null; for (EclipseNode node : field.down()) { if (annotationTypeMatches(Accessors.class, node)) { AnnotationValues ann = createAnnotation(Accessors.class, node); if (ann.isExplicit("prefix")) prefixes = Arrays.asList(ann.getInstance().prefix()); break; } } if (prefixes == null) { EclipseNode current = field.up(); outer: while (current != null) { for (EclipseNode node : current.down()) { if (annotationTypeMatches(Accessors.class, node)) { AnnotationValues ann = createAnnotation(Accessors.class, node); if (ann.isExplicit("prefix")) prefixes = Arrays.asList(ann.getInstance().prefix()); break outer; } } current = current.up(); } } if (prefixes == null) prefixes = field.getAst().readConfiguration(ConfigurationKeys.ACCESSORS_PREFIX); if (!prefixes.isEmpty()) { CharSequence newName = removePrefix(field.getName(), prefixes); if (newName != null) return newName.toString().toCharArray(); } return ((FieldDeclaration) field.get()).name; } public static AnnotationValues getAccessorsForField(EclipseNode field) { for (EclipseNode node : field.down()) { if (annotationTypeMatches(Accessors.class, node)) { return createAnnotation(Accessors.class, node); } } EclipseNode current = field.up(); while (current != null) { for (EclipseNode node : current.down()) { if (annotationTypeMatches(Accessors.class, node)) { return createAnnotation(Accessors.class, node); } } current = current.up(); } return AnnotationValues.of(Accessors.class, field); } public static EclipseNode upToTypeNode(EclipseNode node) { if (node == null) throw new NullPointerException("node"); while (node != null && !(node.get() instanceof TypeDeclaration)) node = node.up(); return node; } /** * Checks if there is a field with the provided name. * * @param fieldName the field name to check for. * @param node Any node that represents the Type (TypeDeclaration) to look in, or any child node thereof. */ public static MemberExistsResult fieldExists(String fieldName, EclipseNode node) { node = upToTypeNode(node); if (node != null && node.get() instanceof TypeDeclaration) { TypeDeclaration typeDecl = (TypeDeclaration)node.get(); if (typeDecl.fields != null) for (FieldDeclaration def : typeDecl.fields) { char[] fName = def.name; if (fName == null) continue; if (fieldName.equals(new String(fName))) { return getGeneratedBy(def) == null ? MemberExistsResult.EXISTS_BY_USER : MemberExistsResult.EXISTS_BY_LOMBOK; } } } return MemberExistsResult.NOT_EXISTS; } /** * Wrapper for {@link #methodExists(String, EclipseNode, boolean, int)} with {@code caseSensitive} = {@code true}. */ public static MemberExistsResult methodExists(String methodName, EclipseNode node, int params) { return methodExists(methodName, node, true, params); } /** * Checks if there is a method with the provided name. In case of multiple methods (overloading), only * the first method decides if EXISTS_BY_USER or EXISTS_BY_LOMBOK is returned. * * @param methodName the method name to check for. * @param node Any node that represents the Type (TypeDeclaration) to look in, or any child node thereof. * @param caseSensitive If the search should be case sensitive. * @param params The number of parameters the method should have; varargs count as 0-*. Set to -1 to find any method with the appropriate name regardless of parameter count. */ public static MemberExistsResult methodExists(String methodName, EclipseNode node, boolean caseSensitive, int params) { while (node != null && !(node.get() instanceof TypeDeclaration)) { node = node.up(); } if (node != null && node.get() instanceof TypeDeclaration) { TypeDeclaration typeDecl = (TypeDeclaration)node.get(); if (typeDecl.methods != null) top: for (AbstractMethodDeclaration def : typeDecl.methods) { if (def instanceof MethodDeclaration) { char[] mName = def.selector; if (mName == null) continue; boolean nameEquals = caseSensitive ? methodName.equals(new String(mName)) : methodName.equalsIgnoreCase(new String(mName)); if (nameEquals) { if (params > -1) { int minArgs = 0; int maxArgs = 0; if (def.arguments != null && def.arguments.length > 0) { minArgs = def.arguments.length; if ((def.arguments[def.arguments.length - 1].type.bits & ASTNode.IsVarArgs) != 0) { minArgs--; maxArgs = Integer.MAX_VALUE; } else { maxArgs = minArgs; } } if (params < minArgs || params > maxArgs) continue; } if (isTolerate(node, def)) continue top; return getGeneratedBy(def) == null ? MemberExistsResult.EXISTS_BY_USER : MemberExistsResult.EXISTS_BY_LOMBOK; } } } } return MemberExistsResult.NOT_EXISTS; } public static boolean isTolerate(EclipseNode node, AbstractMethodDeclaration def) { if (def.annotations != null) for (Annotation anno : def.annotations) { if (typeMatches(Tolerate.class, node, anno.type)) return true; } return false; } /** * Checks if there is a (non-default) constructor. In case of multiple constructors (overloading), only * the first constructor decides if EXISTS_BY_USER or EXISTS_BY_LOMBOK is returned. * * @param node Any node that represents the Type (TypeDeclaration) to look in, or any child node thereof. */ public static MemberExistsResult constructorExists(EclipseNode node) { node = upToTypeNode(node); if (node != null && node.get() instanceof TypeDeclaration) { TypeDeclaration typeDecl = (TypeDeclaration)node.get(); if (typeDecl.methods != null) for (AbstractMethodDeclaration def : typeDecl.methods) { if (def instanceof ConstructorDeclaration) { if ((def.bits & ASTNode.IsDefaultConstructor) != 0) continue; if (isTolerate(node, def)) continue; return getGeneratedBy(def) == null ? MemberExistsResult.EXISTS_BY_USER : MemberExistsResult.EXISTS_BY_LOMBOK; } } } return MemberExistsResult.NOT_EXISTS; } /** * Inserts a field into an existing type. The type must represent a {@code TypeDeclaration}. * The field carries the @{@link SuppressWarnings}("all") annotation. */ public static EclipseNode injectFieldAndMarkGenerated(EclipseNode type, FieldDeclaration field) { field.annotations = addSuppressWarningsAll(type, field, field.annotations); field.annotations = addGenerated(type, field, field.annotations); return injectField(type, field); } /** * Inserts a field into an existing type. The type must represent a {@code TypeDeclaration}. */ public static EclipseNode injectField(EclipseNode type, FieldDeclaration field) { TypeDeclaration parent = (TypeDeclaration) type.get(); if (parent.fields == null) { parent.fields = new FieldDeclaration[1]; parent.fields[0] = field; } else { int size = parent.fields.length; FieldDeclaration[] newArray = new FieldDeclaration[size + 1]; System.arraycopy(parent.fields, 0, newArray, 0, size); int index = 0; for (; index < size; index++) { FieldDeclaration f = newArray[index]; if (isEnumConstant(f) || isGenerated(f)) continue; break; } System.arraycopy(newArray, index, newArray, index + 1, size - index); newArray[index] = field; parent.fields = newArray; } if (isEnumConstant(field) || (field.modifiers & Modifier.STATIC) != 0) { if (!hasClinit(parent)) { parent.addClinit(); } } return type.add(field, Kind.FIELD); } public static boolean isEnumConstant(final FieldDeclaration field) { return ((field.initialization instanceof AllocationExpression) && (((AllocationExpression) field.initialization).enumConstant == field)); } /** * Inserts a method into an existing type. The type must represent a {@code TypeDeclaration}. */ public static EclipseNode injectMethod(EclipseNode type, AbstractMethodDeclaration method) { method.annotations = addSuppressWarningsAll(type, method, method.annotations); method.annotations = addGenerated(type, method, method.annotations); TypeDeclaration parent = (TypeDeclaration) type.get(); if (parent.methods == null) { parent.methods = new AbstractMethodDeclaration[1]; parent.methods[0] = method; } else { if (method instanceof ConstructorDeclaration) { for (int i = 0 ; i < parent.methods.length ; i++) { if (parent.methods[i] instanceof ConstructorDeclaration && (parent.methods[i].bits & ASTNode.IsDefaultConstructor) != 0) { EclipseNode tossMe = type.getNodeFor(parent.methods[i]); AbstractMethodDeclaration[] withoutGeneratedConstructor = new AbstractMethodDeclaration[parent.methods.length - 1]; System.arraycopy(parent.methods, 0, withoutGeneratedConstructor, 0, i); System.arraycopy(parent.methods, i + 1, withoutGeneratedConstructor, i, parent.methods.length - i - 1); parent.methods = withoutGeneratedConstructor; if (tossMe != null) tossMe.up().removeChild(tossMe); break; } } } //We insert the method in the last position of the methods registered to the type //When changing this behavior, this may trigger issue #155 and #377 AbstractMethodDeclaration[] newArray = new AbstractMethodDeclaration[parent.methods.length + 1]; System.arraycopy(parent.methods, 0, newArray, 0, parent.methods.length); newArray[parent.methods.length] = method; parent.methods = newArray; } return type.add(method, Kind.METHOD); } /** * Adds an inner type (class, interface, enum) to the given type. Cannot inject top-level types. * * @param typeNode parent type to inject new type into * @param type New type (class, interface, etc) to inject. */ public static EclipseNode injectType(final EclipseNode typeNode, final TypeDeclaration type) { type.annotations = addSuppressWarningsAll(typeNode, type, type.annotations); type.annotations = addGenerated(typeNode, type, type.annotations); TypeDeclaration parent = (TypeDeclaration) typeNode.get(); if (parent.memberTypes == null) { parent.memberTypes = new TypeDeclaration[] { type }; } else { TypeDeclaration[] newArray = new TypeDeclaration[parent.memberTypes.length + 1]; System.arraycopy(parent.memberTypes, 0, newArray, 0, parent.memberTypes.length); newArray[parent.memberTypes.length] = type; parent.memberTypes = newArray; } return typeNode.add(type, Kind.TYPE); } private static final char[] ALL = "all".toCharArray(); private static final char[] JUSTIFICATION = "justification".toCharArray(); private static final char[] GENERATED_CODE = "generated code".toCharArray(); private static final char[] LOMBOK = "lombok".toCharArray(); private static final char[][] JAVAX_ANNOTATION_GENERATED = Eclipse.fromQualifiedName("javax.annotation.Generated"); private static final char[][] LOMBOK_GENERATED = Eclipse.fromQualifiedName("lombok.Generated"); private static final char[][] EDU_UMD_CS_FINDBUGS_ANNOTATIONS_SUPPRESSFBWARNINGS = Eclipse.fromQualifiedName("edu.umd.cs.findbugs.annotations.SuppressFBWarnings"); public static Annotation[] addSuppressWarningsAll(EclipseNode node, ASTNode source, Annotation[] originalAnnotationArray) { Annotation[] anns = addAnnotation(source, originalAnnotationArray, TypeConstants.JAVA_LANG_SUPPRESSWARNINGS, new StringLiteral(ALL, 0, 0, 0)); if (Boolean.TRUE.equals(node.getAst().readConfiguration(ConfigurationKeys.ADD_FINDBUGS_SUPPRESSWARNINGS_ANNOTATIONS))) { MemberValuePair mvp = new MemberValuePair(JUSTIFICATION, 0, 0, new StringLiteral(GENERATED_CODE, 0, 0, 0)); anns = addAnnotation(source, anns, EDU_UMD_CS_FINDBUGS_ANNOTATIONS_SUPPRESSFBWARNINGS, mvp); } return anns; } public static Annotation[] addGenerated(EclipseNode node, ASTNode source, Annotation[] originalAnnotationArray) { Annotation[] result = originalAnnotationArray; if (HandlerUtil.shouldAddGenerated(node)) { result = addAnnotation(source, result, JAVAX_ANNOTATION_GENERATED, new StringLiteral(LOMBOK, 0, 0, 0)); } if (Boolean.TRUE.equals(node.getAst().readConfiguration(ConfigurationKeys.ADD_LOMBOK_GENERATED_ANNOTATIONS))) { result = addAnnotation(source, result, LOMBOK_GENERATED, null); } return result; } private static Annotation[] addAnnotation(ASTNode source, Annotation[] originalAnnotationArray, char[][] annotationTypeFqn, ASTNode arg) { char[] simpleName = annotationTypeFqn[annotationTypeFqn.length - 1]; if (originalAnnotationArray != null) for (Annotation ann : originalAnnotationArray) { if (ann.type instanceof QualifiedTypeReference) { char[][] t = ((QualifiedTypeReference) ann.type).tokens; if (Arrays.deepEquals(t, annotationTypeFqn)) return originalAnnotationArray; } if (ann.type instanceof SingleTypeReference) { char[] lastToken = ((SingleTypeReference) ann.type).token; if (Arrays.equals(lastToken, simpleName)) return originalAnnotationArray; } } int pS = source.sourceStart, pE = source.sourceEnd; long p = (long)pS << 32 | pE; long[] poss = new long[annotationTypeFqn.length]; Arrays.fill(poss, p); QualifiedTypeReference qualifiedType = new QualifiedTypeReference(annotationTypeFqn, poss); setGeneratedBy(qualifiedType, source); Annotation ann; if (arg instanceof Expression) { SingleMemberAnnotation sma = new SingleMemberAnnotation(qualifiedType, pS); sma.declarationSourceEnd = pE; arg.sourceStart = pS; arg.sourceEnd = pE; sma.memberValue = (Expression) arg; setGeneratedBy(sma.memberValue, source); ann = sma; } else if (arg instanceof MemberValuePair) { NormalAnnotation na = new NormalAnnotation(qualifiedType, pS); na.declarationSourceEnd = pE; arg.sourceStart = pS; arg.sourceEnd = pE; na.memberValuePairs = new MemberValuePair[] {(MemberValuePair) arg}; setGeneratedBy(na.memberValuePairs[0], source); setGeneratedBy(na.memberValuePairs[0].value, source); na.memberValuePairs[0].value.sourceStart = pS; na.memberValuePairs[0].value.sourceEnd = pE; ann = na; } else { MarkerAnnotation ma = new MarkerAnnotation(qualifiedType, pS); ma.declarationSourceEnd = pE; ann = ma; } setGeneratedBy(ann, source); if (originalAnnotationArray == null) return new Annotation[] { ann }; Annotation[] newAnnotationArray = new Annotation[originalAnnotationArray.length + 1]; System.arraycopy(originalAnnotationArray, 0, newAnnotationArray, 0, originalAnnotationArray.length); newAnnotationArray[originalAnnotationArray.length] = ann; return newAnnotationArray; } /** * Generates a new statement that checks if the given variable is null, and if so, throws a specified exception with the * variable name as message. * * @param exName The name of the exception to throw; normally {@code java.lang.NullPointerException}. */ public static Statement generateNullCheck(AbstractVariableDeclaration variable, EclipseNode sourceNode) { NullCheckExceptionType exceptionType = sourceNode.getAst().readConfiguration(ConfigurationKeys.NON_NULL_EXCEPTION_TYPE); if (exceptionType == null) exceptionType = NullCheckExceptionType.NULL_POINTER_EXCEPTION; ASTNode source = sourceNode.get(); int pS = source.sourceStart, pE = source.sourceEnd; long p = (long)pS << 32 | pE; if (isPrimitive(variable.type)) return null; AllocationExpression exception = new AllocationExpression(); setGeneratedBy(exception, source); SingleNameReference varName = new SingleNameReference(variable.name, p); setGeneratedBy(varName, source); NullLiteral nullLiteral = new NullLiteral(pS, pE); setGeneratedBy(nullLiteral, source); int equalOperator = exceptionType == NullCheckExceptionType.ASSERTION ? OperatorIds.NOT_EQUAL : OperatorIds.EQUAL_EQUAL; EqualExpression equalExpression = new EqualExpression(varName, nullLiteral, equalOperator); equalExpression.sourceStart = pS; equalExpression.statementEnd = equalExpression.sourceEnd = pE; setGeneratedBy(equalExpression, source); StringLiteral message = new StringLiteral(exceptionType.toExceptionMessage(new String(variable.name)).toCharArray(), pS, pE, 0); setGeneratedBy(message, source); if (exceptionType == NullCheckExceptionType.ASSERTION) { Statement assertStatement = new AssertStatement(message, equalExpression, pS); setGeneratedBy(assertStatement, source); return assertStatement; } String exceptionTypeStr = exceptionType.getExceptionType(); int partCount = 1; for (int i = 0; i < exceptionTypeStr.length(); i++) if (exceptionTypeStr.charAt(i) == '.') partCount++; long[] ps = new long[partCount]; Arrays.fill(ps, 0L); exception.type = new QualifiedTypeReference(fromQualifiedName(exceptionTypeStr), ps); setGeneratedBy(exception.type, source); exception.arguments = new Expression[] {message}; ThrowStatement throwStatement = new ThrowStatement(exception, pS, pE); setGeneratedBy(throwStatement, source); Block throwBlock = new Block(0); throwBlock.statements = new Statement[] {throwStatement}; throwBlock.sourceStart = pS; throwBlock.sourceEnd = pE; setGeneratedBy(throwBlock, source); IfStatement ifStatement = new IfStatement(equalExpression, throwBlock, 0, 0); setGeneratedBy(ifStatement, source); return ifStatement; } /** * Create an annotation of the given name, and is marked as being generated by the given source. */ public static MarkerAnnotation makeMarkerAnnotation(char[][] name, ASTNode source) { long pos = (long)source.sourceStart << 32 | source.sourceEnd; TypeReference typeRef = new QualifiedTypeReference(name, new long[] {pos, pos, pos}); setGeneratedBy(typeRef, source); MarkerAnnotation ann = new MarkerAnnotation(typeRef, (int)(pos >> 32)); ann.declarationSourceEnd = ann.sourceEnd = ann.statementEnd = (int)pos; setGeneratedBy(ann, source); return ann; } /** * Given a list of field names and a node referring to a type, finds each name in the list that does not match a field within the type. */ public static List createListOfNonExistentFields(List list, EclipseNode type, boolean excludeStandard, boolean excludeTransient) { boolean[] matched = new boolean[list.size()]; for (EclipseNode child : type.down()) { if (list.isEmpty()) break; if (child.getKind() != Kind.FIELD) continue; if (excludeStandard) { if ((((FieldDeclaration)child.get()).modifiers & ClassFileConstants.AccStatic) != 0) continue; if (child.getName().startsWith("$")) continue; } if (excludeTransient && (((FieldDeclaration)child.get()).modifiers & ClassFileConstants.AccTransient) != 0) continue; int idx = list.indexOf(child.getName()); if (idx > -1) matched[idx] = true; } List problematic = new ArrayList(); for (int i = 0 ; i < list.size() ; i++) { if (!matched[i]) problematic.add(i); } return problematic; } /** * In eclipse 3.7+, the CastExpression constructor was changed from a really weird version to * a less weird one. Unfortunately that means we need to use reflection as we want to be compatible * with eclipse versions before 3.7 and 3.7+. * * @param ref The {@code foo} in {@code (String)foo}. * @param castTo The {@code String} in {@code (String)foo}. */ public static CastExpression makeCastExpression(Expression ref, TypeReference castTo, ASTNode source) { CastExpression result; try { if (castExpressionConstructorIsTypeRefBased) { result = castExpressionConstructor.newInstance(ref, castTo); } else { Expression castToConverted = castTo; if (castTo.getClass() == SingleTypeReference.class && !isPrimitive(castTo)) { SingleTypeReference str = (SingleTypeReference) castTo; //Why a SingleNameReference instead of a SingleTypeReference you ask? I don't know. It seems dumb. Ask the ecj guys. castToConverted = new SingleNameReference(str.token, 0); castToConverted.bits = (castToConverted.bits & ~Binding.VARIABLE) | Binding.TYPE; castToConverted.sourceStart = str.sourceStart; castToConverted.sourceEnd = str.sourceEnd; setGeneratedBy(castToConverted, source); } else if (castTo.getClass() == QualifiedTypeReference.class) { QualifiedTypeReference qtr = (QualifiedTypeReference) castTo; //Same here, but for the more complex types, they stay types. castToConverted = new QualifiedNameReference(qtr.tokens, copy(qtr.sourcePositions), qtr.sourceStart, qtr.sourceEnd); castToConverted.bits = (castToConverted.bits & ~Binding.VARIABLE) | Binding.TYPE; setGeneratedBy(castToConverted, source); } result = castExpressionConstructor.newInstance(ref, castToConverted); } } catch (InvocationTargetException e) { throw Lombok.sneakyThrow(e.getCause()); } catch (IllegalAccessException e) { throw Lombok.sneakyThrow(e); } catch (InstantiationException e) { throw Lombok.sneakyThrow(e); } result.sourceStart = source.sourceStart; result.sourceEnd = source.sourceEnd; result.statementEnd = source.sourceEnd; setGeneratedBy(result, source); return result; } private static final Constructor castExpressionConstructor; private static final boolean castExpressionConstructorIsTypeRefBased; static { Constructor constructor = null; for (Constructor ctor : CastExpression.class.getConstructors()) { if (ctor.getParameterTypes().length != 2) continue; constructor = ctor; } @SuppressWarnings("unchecked") Constructor castExpressionConstructor_ = (Constructor) constructor; castExpressionConstructor = castExpressionConstructor_; castExpressionConstructorIsTypeRefBased = (castExpressionConstructor.getParameterTypes()[1] == TypeReference.class); } /** * In eclipse 3.7+, IntLiterals are created using a factory-method * Unfortunately that means we need to use reflection as we want to be compatible * with eclipse versions before 3.7. */ public static IntLiteral makeIntLiteral(char[] token, ASTNode source) { int pS = source == null ? 0 : source.sourceStart, pE = source == null ? 0 : source.sourceEnd; IntLiteral result; try { if (intLiteralConstructor != null) { result = intLiteralConstructor.newInstance(token, pS, pE); } else { result = (IntLiteral) intLiteralFactoryMethod.invoke(null, token, pS, pE); } } catch (InvocationTargetException e) { throw Lombok.sneakyThrow(e.getCause()); } catch (IllegalAccessException e) { throw Lombok.sneakyThrow(e); } catch (InstantiationException e) { throw Lombok.sneakyThrow(e); } if (source != null) setGeneratedBy(result, source); return result; } private static final Constructor intLiteralConstructor; private static final Method intLiteralFactoryMethod; static { Class[] parameterTypes = {char[].class, int.class, int.class}; Constructor intLiteralConstructor_ = null; Method intLiteralFactoryMethod_ = null; try { intLiteralConstructor_ = Permit.getConstructor(IntLiteral.class, parameterTypes); } catch (Throwable ignore) { // probably eclipse 3.7++ } try { intLiteralFactoryMethod_ = Permit.getMethod(IntLiteral.class, "buildIntLiteral", parameterTypes); } catch (Throwable ignore) { // probably eclipse versions before 3.7 } intLiteralConstructor = intLiteralConstructor_; intLiteralFactoryMethod = intLiteralFactoryMethod_; } private static boolean isAllValidOnXCharacters(char[] in) { if (in == null || in.length == 0) return false; for (char c : in) if (c != '_' && c != 'X' && c != 'x' && c != '$') return false; return true; } public static void addError(String errorName, EclipseNode node) { if (node.getLatestJavaSpecSupported() < 8) { node.addError("The correct format is " + errorName + "_={@SomeAnnotation, @SomeOtherAnnotation})"); } else { node.addError("The correct format is " + errorName + "=@__({@SomeAnnotation, @SomeOtherAnnotation}))"); } } public static List unboxAndRemoveAnnotationParameter(Annotation annotation, String annotationName, String errorName, EclipseNode errorNode) { if ("value".equals(annotationName)) { // We can't unbox this, because SingleMemberAnnotation REQUIRES a value, and this method // is supposed to remove the value. That means we need to replace the SMA with either // MarkerAnnotation or NormalAnnotation and that is beyond the scope of this method as we // don't need that at the time of writing this method; we only unbox onMethod, onParameter // and onConstructor. Let's exit early and very obviously: throw new UnsupportedOperationException("Lombok cannot unbox 'value' from SingleMemberAnnotation at this time."); } if (!NormalAnnotation.class.equals(annotation.getClass())) { // Prevent MarkerAnnotation, SingleMemberAnnotation, and // CompletionOnAnnotationMemberValuePair from triggering this handler. return Collections.emptyList(); } NormalAnnotation normalAnnotation = (NormalAnnotation) annotation; MemberValuePair[] pairs = normalAnnotation.memberValuePairs; if (pairs == null) return Collections.emptyList(); char[] nameAsCharArray = annotationName.toCharArray(); top: for (int i = 0; i < pairs.length; i++) { boolean allowRaw; char[] name = pairs[i].name; if (name == null) continue; if (name.length < nameAsCharArray.length) continue; for (int j = 0; j < nameAsCharArray.length; j++) { if (name[j] != nameAsCharArray[j]) continue top; } allowRaw = name.length > nameAsCharArray.length; for (int j = nameAsCharArray.length; j < name.length; j++) { if (name[j] != '_') continue top; } // If we're still here it's the targeted annotation param. Expression value = pairs[i].value; MemberValuePair[] newPairs = new MemberValuePair[pairs.length - 1]; if (i > 0) System.arraycopy(pairs, 0, newPairs, 0, i); if (i < pairs.length - 1) System.arraycopy(pairs, i + 1, newPairs, i, pairs.length - i - 1); normalAnnotation.memberValuePairs = newPairs; // We have now removed the annotation parameter and stored the value, // which we must now unbox. It's either annotations, or @__(annotations). Expression content = null; if (value instanceof ArrayInitializer) { if (!allowRaw) { addError(errorName, errorNode); return Collections.emptyList(); } content = value; } else if (!(value instanceof Annotation)) { addError(errorName, errorNode); return Collections.emptyList(); } else { Annotation atDummyIdentifier = (Annotation) value; if (atDummyIdentifier.type instanceof SingleTypeReference && isAllValidOnXCharacters(((SingleTypeReference) atDummyIdentifier.type).token)) { if (atDummyIdentifier instanceof MarkerAnnotation) { return Collections.emptyList(); } else if (atDummyIdentifier instanceof NormalAnnotation) { MemberValuePair[] mvps = ((NormalAnnotation) atDummyIdentifier).memberValuePairs; if (mvps == null || mvps.length == 0) { return Collections.emptyList(); } if (mvps.length == 1 && Arrays.equals("value".toCharArray(), mvps[0].name)) { content = mvps[0].value; } } else if (atDummyIdentifier instanceof SingleMemberAnnotation) { content = ((SingleMemberAnnotation) atDummyIdentifier).memberValue; } else { addError(errorName, errorNode); return Collections.emptyList(); } } else { if (allowRaw) { content = atDummyIdentifier; } else { addError(errorName, errorNode); return Collections.emptyList(); } } } if (content == null) { addError(errorName, errorNode); return Collections.emptyList(); } if (content instanceof Annotation) { return Collections.singletonList((Annotation) content); } else if (content instanceof ArrayInitializer) { Expression[] expressions = ((ArrayInitializer) content).expressions; List result = new ArrayList(); if (expressions != null) for (Expression ex : expressions) { if (ex instanceof Annotation) result.add((Annotation) ex); else { addError(errorName, errorNode); return Collections.emptyList(); } } return result; } else { addError(errorName, errorNode); return Collections.emptyList(); } } return Collections.emptyList(); } public static NameReference createNameReference(String name, Annotation source) { int pS = source.sourceStart, pE = source.sourceEnd; long p = (long)pS << 32 | pE; char[][] nameTokens = fromQualifiedName(name); long[] pos = new long[nameTokens.length]; Arrays.fill(pos, p); QualifiedNameReference nameReference = new QualifiedNameReference(nameTokens, pos, pS, pE); nameReference.statementEnd = pE; setGeneratedBy(nameReference, source); return nameReference; } private static long[] copy(long[] array) { return array == null ? null : array.clone(); } public static boolean isDirectDescendantOfObject(EclipseNode typeNode) { if (!(typeNode.get() instanceof TypeDeclaration)) throw new IllegalArgumentException("not a type node"); TypeDeclaration typeDecl = (TypeDeclaration) typeNode.get(); if (typeDecl.superclass == null) return true; String p = typeDecl.superclass.toString(); return p.equals("Object") || p.equals("java.lang.Object"); } public static NameReference generateQualifiedNameRef(ASTNode source, char[]... varNames) { int pS = source.sourceStart, pE = source.sourceEnd; long p = (long)pS << 32 | pE; NameReference ref; if (varNames.length > 1) ref = new QualifiedNameReference(varNames, new long[varNames.length], pS, pE); else ref = new SingleNameReference(varNames[0], p); setGeneratedBy(ref, source); return ref; } public static TypeReference generateQualifiedTypeRef(ASTNode source, char[]... varNames) { int pS = source.sourceStart, pE = source.sourceEnd; long p = (long)pS << 32 | pE; TypeReference ref; long[] poss = Eclipse.poss(source, varNames.length); if (varNames.length > 1) ref = new QualifiedTypeReference(varNames, poss); else ref = new SingleTypeReference(varNames[0], p); setGeneratedBy(ref, source); return ref; } }