Java Code Examples for lombok.javac.JavacTreeMaker#NewClass

The following examples show how to use lombok.javac.JavacTreeMaker#NewClass . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: JavacJavaUtilListSingularizer.java From EasyMPermission with MIT License

6 votes

private List<JCStatement> createListCopy(JavacTreeMaker maker, SingularData data, JavacNode builderType, JCTree source) {
	List<JCExpression> jceBlank = List.nil();
	Name thisName = builderType.toName("this");
	
	JCExpression argToUnmodifiable; {
		 // new java.util.ArrayList<Generics>(this.pluralName);
		List<JCExpression> constructorArgs = List.nil();
		JCExpression thisDotPluralName = maker.Select(maker.Ident(thisName), data.getPluralName());
		constructorArgs = List.<JCExpression>of(thisDotPluralName);
		JCExpression targetTypeExpr = chainDots(builderType, "java", "util", "ArrayList");
		targetTypeExpr = addTypeArgs(1, false, builderType, targetTypeExpr, data.getTypeArgs(), source);
		argToUnmodifiable = maker.NewClass(null, jceBlank, targetTypeExpr, constructorArgs, null);
	}
	
	JCStatement unmodifiableStat; {
		// pluralname = Collections.unmodifiableInterfaceType(-newlist-);
		JCExpression invoke = maker.Apply(jceBlank, chainDots(builderType, "java", "util", "Collections", "unmodifiableList"), List.of(argToUnmodifiable));
		unmodifiableStat = maker.Exec(maker.Assign(maker.Ident(data.getPluralName()), invoke));
	}
	
	return List.of(unmodifiableStat);
}

Example 2

Source File: HandleUtilityClass.java From EasyMPermission with MIT License

5 votes

private List<JCStatement> createThrowStatement(JavacNode typeNode, JavacTreeMaker maker) {
	JCExpression exceptionType = genJavaLangTypeRef(typeNode, "UnsupportedOperationException");
	List<JCExpression> jceBlank = List.nil();
	JCExpression message = maker.Literal("This is a utility class and cannot be instantiated");
	JCExpression exceptionInstance = maker.NewClass(null, jceBlank, exceptionType, List.of(message), null);
	JCStatement throwStatement = maker.Throw(exceptionInstance);
	return List.of(throwStatement);
}

Example 3

Source File: JavacHandlerUtil.java From EasyMPermission with MIT License

5 votes

/**
 * 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 JCStatement generateNullCheck(JavacTreeMaker maker, JavacNode variable, JavacNode source) {
	NullCheckExceptionType exceptionType = source.getAst().readConfiguration(ConfigurationKeys.NON_NULL_EXCEPTION_TYPE);
	if (exceptionType == null) exceptionType = NullCheckExceptionType.NULL_POINTER_EXCEPTION;
	
	JCVariableDecl varDecl = (JCVariableDecl) variable.get();
	if (isPrimitive(varDecl.vartype)) return null;
	Name fieldName = varDecl.name;
	JCExpression exType = genTypeRef(variable, exceptionType.getExceptionType());
	JCExpression exception = maker.NewClass(null, List.<JCExpression>nil(), exType, List.<JCExpression>of(maker.Literal(exceptionType.toExceptionMessage(fieldName.toString()))), null);
	JCStatement throwStatement = maker.Throw(exception);
	JCBlock throwBlock = maker.Block(0, List.of(throwStatement));
	return maker.If(maker.Binary(CTC_EQUAL, maker.Ident(fieldName), maker.Literal(CTC_BOT, null)), throwBlock, null);
}

Example 4

Source File: HandleBuilder.java From EasyMPermission with MIT License

5 votes

public JCMethodDecl generateBuilderMethod(String builderMethodName, String builderClassName, JavacNode type, List<JCTypeParameter> typeParams) {
	JavacTreeMaker maker = type.getTreeMaker();
	
	ListBuffer<JCExpression> typeArgs = new ListBuffer<JCExpression>();
	for (JCTypeParameter typeParam : typeParams) {
		typeArgs.append(maker.Ident(typeParam.name));
	}
	
	JCExpression call = maker.NewClass(null, List.<JCExpression>nil(), namePlusTypeParamsToTypeReference(maker, type.toName(builderClassName), typeParams), List.<JCExpression>nil(), null);
	JCStatement statement = maker.Return(call);
	
	JCBlock body = maker.Block(0, List.<JCStatement>of(statement));
	return maker.MethodDef(maker.Modifiers(Flags.STATIC | Flags.PUBLIC), type.toName(builderMethodName), namePlusTypeParamsToTypeReference(maker, type.toName(builderClassName), typeParams), copyTypeParams(maker, typeParams), List.<JCVariableDecl>nil(), List.<JCExpression>nil(), body, null);
}

Example 5

Source File: JavacJavaUtilSingularizer.java From EasyMPermission with MIT License

5 votes

protected JCStatement createConstructBuilderVarIfNeeded(JavacTreeMaker maker, SingularData data, JavacNode builderType, boolean mapMode, JCTree source) {
	List<JCExpression> jceBlank = List.nil();

	Name v1Name = mapMode ? builderType.toName(data.getPluralName() + "$key") : data.getPluralName();
	Name v2Name = mapMode ? builderType.toName(data.getPluralName() + "$value") : null;
	JCExpression thisDotField = maker.Select(maker.Ident(builderType.toName("this")), v1Name);
	JCExpression cond = maker.Binary(CTC_EQUAL, thisDotField, maker.Literal(CTC_BOT, null));
	thisDotField = maker.Select(maker.Ident(builderType.toName("this")), v1Name);
	JCExpression v1Type = chainDots(builderType, "java", "util", "ArrayList");
	v1Type = addTypeArgs(1, false, builderType, v1Type, data.getTypeArgs(), source);
	JCExpression constructArrayList = maker.NewClass(null, jceBlank, v1Type, jceBlank, null);
	JCStatement initV1 = maker.Exec(maker.Assign(thisDotField, constructArrayList));
	JCStatement thenPart;
	if (mapMode) {
		thisDotField = maker.Select(maker.Ident(builderType.toName("this")), v2Name);
		JCExpression v2Type = chainDots(builderType, "java", "util", "ArrayList");
		List<JCExpression> tArgs = data.getTypeArgs();
		if (tArgs != null && tArgs.tail != null) tArgs = tArgs.tail;
		else tArgs = List.nil();
		v2Type = addTypeArgs(1, false, builderType, v2Type, tArgs, source);
		constructArrayList = maker.NewClass(null, jceBlank, v2Type, jceBlank, null);
		JCStatement initV2 = maker.Exec(maker.Assign(thisDotField, constructArrayList));
		thenPart = maker.Block(0, List.of(initV1, initV2));
	} else {
		thenPart = initV1;
	}
	return maker.If(cond, thenPart, null);
}

Example 6

Source File: SingletonJavacHandler.java From tutorials with MIT License

5 votes

private void addInstanceVar(JavacNode singletonClass, JavacTreeMaker singletonClassTM, JavacNode holderClass) {
    JCTree.JCModifiers fieldMod = singletonClassTM.Modifiers(Flags.PRIVATE | Flags.STATIC | Flags.FINAL);

    JCTree.JCClassDecl singletonClassDecl = (JCTree.JCClassDecl) singletonClass.get();
    JCTree.JCIdent singletonClassType = singletonClassTM.Ident(singletonClassDecl.name);

    JCTree.JCNewClass newKeyword = singletonClassTM.NewClass(null, List.nil(), singletonClassType, List.nil(), null);

    JCTree.JCVariableDecl instanceVar = singletonClassTM.VarDef(fieldMod, singletonClass.toName("INSTANCE"), singletonClassType, newKeyword);
    JavacHandlerUtil.injectField(holderClass, instanceVar);
}

Example 7

Source File: HandleTable.java From sqlitemagic with Apache License 2.0

4 votes

private static JCTree.JCBlock defaultMagicMethodBody(JavacTreeMaker maker, JavacNode tableElement) {
  JCTree.JCExpression exType = genTypeRef(tableElement, RuntimeException.class.getCanonicalName());
  JCTree.JCExpression exception = maker.NewClass(null, List.<JCTree.JCExpression>nil(), exType, List.<JCTree.JCExpression>of(maker.Literal(ERROR_PROCESSOR_DID_NOT_RUN)), null);
  final JCTree.JCStatement statement = maker.Throw(exception);
  return maker.Block(0, List.of(statement));
}

Example 8

Source File: HandleWither.java From EasyMPermission with MIT License

4 votes

public JCMethodDecl createWither(long access, JavacNode field, JavacTreeMaker maker, JavacNode source, List<JCAnnotation> onMethod, List<JCAnnotation> onParam) {
	String witherName = toWitherName(field);
	if (witherName == null) return null;
	
	JCVariableDecl fieldDecl = (JCVariableDecl) field.get();
	
	ListBuffer<JCStatement> statements = new ListBuffer<JCStatement>();
	List<JCAnnotation> nonNulls = findAnnotations(field, NON_NULL_PATTERN);
	List<JCAnnotation> nullables = findAnnotations(field, NULLABLE_PATTERN);
	
	Name methodName = field.toName(witherName);
	List<JCAnnotation> annsOnParam = copyAnnotations(onParam).appendList(nonNulls).appendList(nullables);
	
	long flags = JavacHandlerUtil.addFinalIfNeeded(Flags.PARAMETER, field.getContext());
	JCVariableDecl param = maker.VarDef(maker.Modifiers(flags, annsOnParam), fieldDecl.name, fieldDecl.vartype, null);
	
	JCExpression selfType = cloneSelfType(field);
	if (selfType == null) return null;
	
	ListBuffer<JCExpression> args = new ListBuffer<JCExpression>();
	for (JavacNode child : field.up().down()) {
		if (child.getKind() != Kind.FIELD) continue;
		JCVariableDecl childDecl = (JCVariableDecl) child.get();
		// Skip fields that start with $
		if (childDecl.name.toString().startsWith("$")) continue;
		long fieldFlags = childDecl.mods.flags;
		// Skip static fields.
		if ((fieldFlags & Flags.STATIC) != 0) continue;
		// Skip initialized final fields.
		if (((fieldFlags & Flags.FINAL) != 0) && childDecl.init != null) continue;
		if (child.get() == field.get()) {
			args.append(maker.Ident(fieldDecl.name));
		} else {
			args.append(createFieldAccessor(maker, child, FieldAccess.ALWAYS_FIELD));
		}
	}
	
	JCNewClass newClass = maker.NewClass(null, List.<JCExpression>nil(), selfType, args.toList(), null);
	JCExpression identityCheck = maker.Binary(CTC_EQUAL, createFieldAccessor(maker, field, FieldAccess.ALWAYS_FIELD), maker.Ident(fieldDecl.name));
	JCConditional conditional = maker.Conditional(identityCheck, maker.Ident(field.toName("this")), newClass);
	JCReturn returnStatement = maker.Return(conditional);
	
	if (nonNulls.isEmpty()) {
		statements.append(returnStatement);
	} else {
		JCStatement nullCheck = generateNullCheck(maker, field, source);
		if (nullCheck != null) statements.append(nullCheck);
		statements.append(returnStatement);
	}
	
	JCExpression returnType = cloneSelfType(field);
	
	JCBlock methodBody = maker.Block(0, statements.toList());
	List<JCTypeParameter> methodGenericParams = List.nil();
	List<JCVariableDecl> parameters = List.of(param);
	List<JCExpression> throwsClauses = List.nil();
	JCExpression annotationMethodDefaultValue = null;
	
	List<JCAnnotation> annsOnMethod = copyAnnotations(onMethod);
	
	if (isFieldDeprecated(field)) {
		annsOnMethod = annsOnMethod.prepend(maker.Annotation(genJavaLangTypeRef(field, "Deprecated"), List.<JCExpression>nil()));
	}
	JCMethodDecl decl = recursiveSetGeneratedBy(maker.MethodDef(maker.Modifiers(access, annsOnMethod), methodName, returnType,
			methodGenericParams, parameters, throwsClauses, methodBody, annotationMethodDefaultValue), source.get(), field.getContext());
	copyJavadoc(field, decl, CopyJavadoc.WITHER);
	return decl;
}

Example 9

Source File: JavacJavaUtilSingularizer.java From EasyMPermission with MIT License

4 votes

protected List<JCStatement> createJavaUtilSimpleCreationAndFillStatements(JavacTreeMaker maker, SingularData data, JavacNode builderType, boolean mapMode, boolean defineVar, boolean addInitialCapacityArg, boolean nullGuard, String targetType, JCTree source) {
	List<JCExpression> jceBlank = List.nil();
	Name thisName = builderType.toName("this");
	
	JCStatement createStat; {
		 // pluralName = new java.util.TargetType(initialCap);
		List<JCExpression> constructorArgs = List.nil();
		if (addInitialCapacityArg) {
			Name varName = mapMode ? builderType.toName(data.getPluralName() + "$key") : data.getPluralName();
			// this.varName.size() < MAX_POWER_OF_2 ? 1 + this.varName.size() + (this.varName.size() - 3) / 3 : Integer.MAX_VALUE;
			// lessThanCutOff = this.varName.size() < MAX_POWER_OF_2
			JCExpression lessThanCutoff = maker.Binary(CTC_LESS_THAN, getSize(maker, builderType, varName, nullGuard), maker.Literal(CTC_INT, 0x40000000));
			JCExpression integerMaxValue = genJavaLangTypeRef(builderType, "Integer", "MAX_VALUE");
			JCExpression sizeFormulaLeft = maker.Binary(CTC_PLUS, maker.Literal(CTC_INT, 1), getSize(maker, builderType, varName, nullGuard));
			JCExpression sizeFormulaRightLeft = maker.Binary(CTC_MINUS, getSize(maker, builderType, varName, nullGuard), maker.Literal(CTC_INT, 3));
			JCExpression sizeFormulaRight = maker.Binary(CTC_DIV, sizeFormulaRightLeft, maker.Literal(CTC_INT, 3));
			JCExpression sizeFormula = maker.Binary(CTC_PLUS, sizeFormulaLeft, sizeFormulaRight);
			constructorArgs = List.<JCExpression>of(maker.Conditional(lessThanCutoff, sizeFormula, integerMaxValue));
		}
		
		JCExpression targetTypeExpr = chainDots(builderType, "java", "util", targetType);
		targetTypeExpr = addTypeArgs(mapMode ? 2 : 1, false, builderType, targetTypeExpr, data.getTypeArgs(), source);
		JCExpression constructorCall = maker.NewClass(null, jceBlank, targetTypeExpr, constructorArgs, null);
		if (defineVar) {
			JCExpression localShadowerType = chainDotsString(builderType, data.getTargetFqn());
			localShadowerType = addTypeArgs(mapMode ? 2 : 1, false, builderType, localShadowerType, data.getTypeArgs(), source);
			createStat = maker.VarDef(maker.Modifiers(0), data.getPluralName(), localShadowerType, constructorCall);
		} else {
			createStat = maker.Exec(maker.Assign(maker.Ident(data.getPluralName()), constructorCall));
		}
	}
	
	JCStatement fillStat; {
		if (mapMode) {
			// for (int $i = 0; $i < this.pluralname$key.size(); i++) pluralname.put(this.pluralname$key.get($i), this.pluralname$value.get($i));
			Name ivar = builderType.toName("$i");
			Name keyVarName = builderType.toName(data.getPluralName() + "$key");
			JCExpression pluralnameDotPut = maker.Select(maker.Ident(data.getPluralName()), builderType.toName("put"));
			JCExpression arg1 = maker.Apply(jceBlank, chainDots(builderType, "this", data.getPluralName() + "$key", "get"), List.<JCExpression>of(maker.Ident(ivar)));
			JCExpression arg2 = maker.Apply(jceBlank, chainDots(builderType, "this", data.getPluralName() + "$value", "get"), List.<JCExpression>of(maker.Ident(ivar)));
			JCStatement putStatement = maker.Exec(maker.Apply(jceBlank, pluralnameDotPut, List.of(arg1, arg2)));
			JCStatement forInit = maker.VarDef(maker.Modifiers(0), ivar, maker.TypeIdent(CTC_INT), maker.Literal(CTC_INT, 0));
			JCExpression checkExpr = maker.Binary(CTC_LESS_THAN, maker.Ident(ivar), getSize(maker, builderType, keyVarName, nullGuard));
			JCExpression incrementExpr = maker.Unary(CTC_POSTINC, maker.Ident(ivar));
			fillStat = maker.ForLoop(List.of(forInit), checkExpr, List.of(maker.Exec(incrementExpr)), putStatement);
		} else {
			// pluralname.addAll(this.pluralname);
			JCExpression thisDotPluralName = maker.Select(maker.Ident(thisName), data.getPluralName());
			fillStat = maker.Exec(maker.Apply(jceBlank, maker.Select(maker.Ident(data.getPluralName()), builderType.toName("addAll")), List.of(thisDotPluralName)));
		}
		if (nullGuard) {
			JCExpression thisDotField = maker.Select(maker.Ident(thisName), mapMode ? builderType.toName(data.getPluralName() + "$key") : data.getPluralName());
			JCExpression nullCheck = maker.Binary(CTC_NOT_EQUAL, thisDotField, maker.Literal(CTC_BOT, null));
			fillStat = maker.If(nullCheck, fillStat, null);
		}
	}
	JCStatement unmodifiableStat; {
		// pluralname = Collections.unmodifiableInterfaceType(pluralname);
		JCExpression arg = maker.Ident(data.getPluralName());
		JCExpression invoke = maker.Apply(jceBlank, chainDots(builderType, "java", "util", "Collections", "unmodifiable" + data.getTargetSimpleType()), List.of(arg));
		unmodifiableStat = maker.Exec(maker.Assign(maker.Ident(data.getPluralName()), invoke));
	}
	
	return List.of(createStat, fillStat, unmodifiableStat);
}