Examples with BinaryExpression org.codehaus.groovy.ast.expr.BinaryExpression used on opensource projects

Example 76 with BinaryExpression

use of org.codehaus.groovy.ast.expr.BinaryExpression in project groovy by apache.

the class StaticImportVisitor method transform.

public Expression transform(Expression exp) {
    if (exp == null)
        return null;
    if (exp.getClass() == VariableExpression.class) {
        return transformVariableExpression((VariableExpression) exp);
    }
    if (exp.getClass() == BinaryExpression.class) {
        return transformBinaryExpression((BinaryExpression) exp);
    }
    if (exp.getClass() == PropertyExpression.class) {
        return transformPropertyExpression((PropertyExpression) exp);
    }
    if (exp.getClass() == MethodCallExpression.class) {
        return transformMethodCallExpression((MethodCallExpression) exp);
    }
    if (exp.getClass() == ClosureExpression.class) {
        return transformClosureExpression((ClosureExpression) exp);
    }
    if (exp.getClass() == ConstructorCallExpression.class) {
        return transformConstructorCallExpression((ConstructorCallExpression) exp);
    }
    if (exp.getClass() == ArgumentListExpression.class) {
        Expression result = exp.transformExpression(this);
        if (inPropertyExpression) {
            foundArgs = result;
        }
        return result;
    }
    if (exp instanceof ConstantExpression) {
        Expression result = exp.transformExpression(this);
        if (inPropertyExpression) {
            foundConstant = result;
        }
        if (inAnnotation && exp instanceof AnnotationConstantExpression) {
            ConstantExpression ce = (ConstantExpression) result;
            if (ce.getValue() instanceof AnnotationNode) {
                // replicate a little bit of AnnotationVisitor here
                // because we can't wait until later to do this
                AnnotationNode an = (AnnotationNode) ce.getValue();
                Map<String, Expression> attributes = an.getMembers();
                for (Map.Entry<String, Expression> entry : attributes.entrySet()) {
                    Expression attrExpr = transform(entry.getValue());
                    entry.setValue(attrExpr);
                }
            }
        }
        return result;
    }
    return exp.transformExpression(this);
}

Example 77 with BinaryExpression

use of org.codehaus.groovy.ast.expr.BinaryExpression in project groovy by apache.

the class TraitASTTransformation method processProperty.

/**
     * Mostly copied from the {@link Verifier} class but does *not* generate bytecode
     *
     * @param cNode
     * @param node
     */
private static void processProperty(final ClassNode cNode, PropertyNode node) {
    String name = node.getName();
    FieldNode field = node.getField();
    int propNodeModifiers = node.getModifiers();
    String getterName = "get" + Verifier.capitalize(name);
    String setterName = "set" + Verifier.capitalize(name);
    // GROOVY-3726: clear volatile, transient modifiers so that they don't get applied to methods
    if ((propNodeModifiers & Modifier.VOLATILE) != 0) {
        propNodeModifiers = propNodeModifiers - Modifier.VOLATILE;
    }
    if ((propNodeModifiers & Modifier.TRANSIENT) != 0) {
        propNodeModifiers = propNodeModifiers - Modifier.TRANSIENT;
    }
    Statement getterBlock = node.getGetterBlock();
    if (getterBlock == null) {
        MethodNode getter = cNode.getGetterMethod(getterName);
        if (getter == null && ClassHelper.boolean_TYPE == node.getType()) {
            String secondGetterName = "is" + Verifier.capitalize(name);
            getter = cNode.getGetterMethod(secondGetterName);
        }
        if (!node.isPrivate() && methodNeedsReplacement(cNode, getter)) {
            getterBlock = new ExpressionStatement(new FieldExpression(field));
        }
    }
    Statement setterBlock = node.getSetterBlock();
    if (setterBlock == null) {
        // 2nd arg false below: though not usual, allow setter with non-void return type
        MethodNode setter = cNode.getSetterMethod(setterName, false);
        if (!node.isPrivate() && (propNodeModifiers & ACC_FINAL) == 0 && methodNeedsReplacement(cNode, setter)) {
            setterBlock = new ExpressionStatement(new BinaryExpression(new FieldExpression(field), Token.newSymbol(Types.EQUAL, 0, 0), new VariableExpression("value")));
        }
    }
    if (getterBlock != null) {
        MethodNode getter = new MethodNode(getterName, propNodeModifiers, node.getType(), Parameter.EMPTY_ARRAY, ClassNode.EMPTY_ARRAY, getterBlock);
        getter.setSynthetic(true);
        cNode.addMethod(getter);
        if (ClassHelper.boolean_TYPE == node.getType() || ClassHelper.Boolean_TYPE == node.getType()) {
            String secondGetterName = "is" + Verifier.capitalize(name);
            MethodNode secondGetter = new MethodNode(secondGetterName, propNodeModifiers, node.getType(), Parameter.EMPTY_ARRAY, ClassNode.EMPTY_ARRAY, getterBlock);
            secondGetter.setSynthetic(true);
            cNode.addMethod(secondGetter);
        }
    }
    if (setterBlock != null) {
        Parameter[] setterParameterTypes = { new Parameter(node.getType(), "value") };
        VariableExpression var = (VariableExpression) ((BinaryExpression) ((ExpressionStatement) setterBlock).getExpression()).getRightExpression();
        var.setAccessedVariable(setterParameterTypes[0]);
        MethodNode setter = new MethodNode(setterName, propNodeModifiers, ClassHelper.VOID_TYPE, setterParameterTypes, ClassNode.EMPTY_ARRAY, setterBlock);
        setter.setSynthetic(true);
        cNode.addMethod(setter);
    }
}

Example 78 with BinaryExpression

use of org.codehaus.groovy.ast.expr.BinaryExpression in project groovy by apache.

the class TraitComposer method createSuperFallback.

private static Statement createSuperFallback(MethodNode forwarderMethod, ClassNode returnType) {
    ArgumentListExpression args = new ArgumentListExpression();
    Parameter[] forwarderMethodParameters = forwarderMethod.getParameters();
    for (final Parameter forwarderMethodParameter : forwarderMethodParameters) {
        args.addExpression(new VariableExpression(forwarderMethodParameter));
    }
    BinaryExpression instanceOfExpr = new BinaryExpression(new VariableExpression("this"), Token.newSymbol(Types.KEYWORD_INSTANCEOF, -1, -1), new ClassExpression(Traits.GENERATED_PROXY_CLASSNODE));
    MethodCallExpression superCall = new MethodCallExpression(new VariableExpression("super"), forwarderMethod.getName(), args);
    superCall.setImplicitThis(false);
    CastExpression proxyReceiver = new CastExpression(Traits.GENERATED_PROXY_CLASSNODE, new VariableExpression("this"));
    MethodCallExpression getProxy = new MethodCallExpression(proxyReceiver, "getProxyTarget", ArgumentListExpression.EMPTY_ARGUMENTS);
    getProxy.setImplicitThis(true);
    StaticMethodCallExpression proxyCall = new StaticMethodCallExpression(ClassHelper.make(InvokerHelper.class), "invokeMethod", new ArgumentListExpression(getProxy, new ConstantExpression(forwarderMethod.getName()), new ArrayExpression(ClassHelper.OBJECT_TYPE, args.getExpressions())));
    IfStatement stmt = new IfStatement(new BooleanExpression(instanceOfExpr), new ExpressionStatement(new CastExpression(returnType, proxyCall)), new ExpressionStatement(superCall));
    return stmt;
}

Example 79 with BinaryExpression

use of org.codehaus.groovy.ast.expr.BinaryExpression in project groovy by apache.

the class TraitComposer method applyTrait.

private static void applyTrait(final ClassNode trait, final ClassNode cNode, final TraitHelpersTuple helpers) {
    ClassNode helperClassNode = helpers.getHelper();
    ClassNode fieldHelperClassNode = helpers.getFieldHelper();
    Map<String, ClassNode> genericsSpec = GenericsUtils.createGenericsSpec(cNode);
    genericsSpec = GenericsUtils.createGenericsSpec(trait, genericsSpec);
    for (MethodNode methodNode : helperClassNode.getAllDeclaredMethods()) {
        String name = methodNode.getName();
        Parameter[] helperMethodParams = methodNode.getParameters();
        boolean isAbstract = methodNode.isAbstract();
        if (!isAbstract && helperMethodParams.length > 0 && ((methodNode.getModifiers() & Opcodes.ACC_STATIC) == Opcodes.ACC_STATIC) && (!name.contains("$") || (methodNode.getModifiers() & Opcodes.ACC_SYNTHETIC) == 0)) {
            ArgumentListExpression argList = new ArgumentListExpression();
            argList.addExpression(new VariableExpression("this"));
            Parameter[] origParams = new Parameter[helperMethodParams.length - 1];
            Parameter[] params = new Parameter[helperMethodParams.length - 1];
            System.arraycopy(methodNode.getParameters(), 1, params, 0, params.length);
            Map<String, ClassNode> methodGenericsSpec = new LinkedHashMap<String, ClassNode>(genericsSpec);
            MethodNode originalMethod = trait.getMethod(name, params);
            // Original method may be null for the case of private or static methods
            if (originalMethod != null) {
                methodGenericsSpec = GenericsUtils.addMethodGenerics(originalMethod, methodGenericsSpec);
            }
            for (int i = 1; i < helperMethodParams.length; i++) {
                Parameter parameter = helperMethodParams[i];
                ClassNode originType = parameter.getOriginType();
                ClassNode fixedType = correctToGenericsSpecRecurse(methodGenericsSpec, originType);
                Parameter newParam = new Parameter(fixedType, "arg" + i);
                List<AnnotationNode> copied = new LinkedList<AnnotationNode>();
                List<AnnotationNode> notCopied = new LinkedList<AnnotationNode>();
                GeneralUtils.copyAnnotatedNodeAnnotations(parameter, copied, notCopied);
                newParam.addAnnotations(copied);
                params[i - 1] = newParam;
                origParams[i - 1] = parameter;
                argList.addExpression(new VariableExpression(params[i - 1]));
            }
            createForwarderMethod(trait, cNode, methodNode, originalMethod, helperClassNode, methodGenericsSpec, helperMethodParams, origParams, params, argList);
        }
    }
    cNode.addObjectInitializerStatements(new ExpressionStatement(new MethodCallExpression(new ClassExpression(helperClassNode), Traits.INIT_METHOD, new ArgumentListExpression(new VariableExpression("this")))));
    MethodCallExpression staticInitCall = new MethodCallExpression(new ClassExpression(helperClassNode), Traits.STATIC_INIT_METHOD, new ArgumentListExpression(new ClassExpression(cNode)));
    MethodNode staticInitMethod = new MethodNode(Traits.STATIC_INIT_METHOD, Opcodes.ACC_STATIC | Opcodes.ACC_PUBLIC, ClassHelper.VOID_TYPE, new Parameter[] { new Parameter(ClassHelper.CLASS_Type, "clazz") }, ClassNode.EMPTY_ARRAY, EmptyStatement.INSTANCE);
    staticInitMethod.setDeclaringClass(helperClassNode);
    staticInitCall.setMethodTarget(staticInitMethod);
    cNode.addStaticInitializerStatements(Collections.<Statement>singletonList(new ExpressionStatement(staticInitCall)), false);
    if (fieldHelperClassNode != null && !cNode.declaresInterface(fieldHelperClassNode)) {
        // we should implement the field helper interface too
        cNode.addInterface(fieldHelperClassNode);
        // implementation of methods
        List<MethodNode> declaredMethods = new LinkedList<MethodNode>();
        for (MethodNode declaredMethod : fieldHelperClassNode.getAllDeclaredMethods()) {
            if (declaredMethod.getName().endsWith(Traits.DIRECT_GETTER_SUFFIX)) {
                declaredMethods.add(0, declaredMethod);
            } else {
                declaredMethods.add(declaredMethod);
            }
        }
        for (MethodNode methodNode : declaredMethods) {
            String fieldName = methodNode.getName();
            if (fieldName.endsWith(Traits.DIRECT_GETTER_SUFFIX) || fieldName.endsWith(Traits.DIRECT_SETTER_SUFFIX)) {
                int suffixIdx = fieldName.lastIndexOf("$");
                fieldName = fieldName.substring(0, suffixIdx);
                String operation = methodNode.getName().substring(suffixIdx + 1);
                boolean getter = "get".equals(operation);
                ClassNode returnType = correctToGenericsSpecRecurse(genericsSpec, methodNode.getReturnType());
                int fieldMods = 0;
                int isStatic = 0;
                boolean publicField = true;
                FieldNode helperField = null;
                fieldMods = 0;
                isStatic = 0;
                // look first for field with encoded modifier information
                for (Integer mod : Traits.FIELD_PREFIXES) {
                    helperField = fieldHelperClassNode.getField(String.format("$0x%04x", mod) + fieldName);
                    if (helperField != null) {
                        if ((mod & Opcodes.ACC_STATIC) != 0)
                            isStatic = Opcodes.ACC_STATIC;
                        fieldMods = fieldMods | mod;
                        break;
                    }
                }
                if (helperField == null) {
                    // look for possible legacy fields (trait compiled pre 2.4.8)
                    helperField = fieldHelperClassNode.getField(Traits.FIELD_PREFIX + Traits.PUBLIC_FIELD_PREFIX + fieldName);
                    if (helperField == null) {
                        publicField = false;
                        helperField = fieldHelperClassNode.getField(Traits.FIELD_PREFIX + Traits.PRIVATE_FIELD_PREFIX + fieldName);
                    }
                    if (helperField == null) {
                        publicField = true;
                        // try to find a static one
                        helperField = fieldHelperClassNode.getField(Traits.STATIC_FIELD_PREFIX + Traits.PUBLIC_FIELD_PREFIX + fieldName);
                        if (helperField == null) {
                            publicField = false;
                            helperField = fieldHelperClassNode.getField(Traits.STATIC_FIELD_PREFIX + Traits.PRIVATE_FIELD_PREFIX + fieldName);
                        }
                        fieldMods = fieldMods | Opcodes.ACC_STATIC;
                        isStatic = Opcodes.ACC_STATIC;
                    }
                    fieldMods = fieldMods | (publicField ? Opcodes.ACC_PUBLIC : Opcodes.ACC_PRIVATE);
                }
                if (getter) {
                    // add field
                    if (helperField != null) {
                        List<AnnotationNode> copied = new LinkedList<AnnotationNode>();
                        List<AnnotationNode> notCopied = new LinkedList<AnnotationNode>();
                        GeneralUtils.copyAnnotatedNodeAnnotations(helperField, copied, notCopied);
                        FieldNode fieldNode = cNode.addField(fieldName, fieldMods, returnType, (fieldMods & Opcodes.ACC_FINAL) == 0 ? null : helperField.getInitialExpression());
                        fieldNode.addAnnotations(copied);
                        // so instead set within (static) initializer
                        if (fieldNode.isFinal() && !(helperClassNode instanceof InnerClassNode)) {
                            String baseName = fieldNode.isStatic() ? Traits.STATIC_INIT_METHOD : Traits.INIT_METHOD;
                            Expression mce = callX(helperClassNode, baseName + fieldNode.getName());
                            Statement stmt = stmt(assignX(varX(fieldNode.getName(), fieldNode.getType()), mce));
                            if (isStatic == 0) {
                                cNode.addObjectInitializerStatements(stmt);
                            } else {
                                cNode.addStaticInitializerStatements(Collections.<Statement>singletonList(stmt), false);
                            }
                        }
                    }
                }
                Parameter[] newParams;
                if (getter) {
                    newParams = Parameter.EMPTY_ARRAY;
                } else {
                    ClassNode originType = methodNode.getParameters()[0].getOriginType();
                    ClassNode fixedType = originType.isGenericsPlaceHolder() ? ClassHelper.OBJECT_TYPE : correctToGenericsSpecRecurse(genericsSpec, originType);
                    newParams = new Parameter[] { new Parameter(fixedType, "val") };
                }
                Expression fieldExpr = varX(cNode.getField(fieldName));
                boolean finalSetter = !getter && (fieldMods & Opcodes.ACC_FINAL) != 0;
                Statement body = getter ? returnS(fieldExpr) : (finalSetter ? null : stmt(new BinaryExpression(fieldExpr, Token.newSymbol(Types.EQUAL, 0, 0), varX(newParams[0]))));
                // add getter/setter even though setter not strictly needed for final fields
                // but add empty body for setter for legacy compatibility
                MethodNode impl = new MethodNode(methodNode.getName(), Opcodes.ACC_PUBLIC | isStatic, returnType, newParams, ClassNode.EMPTY_ARRAY, body);
                AnnotationNode an = new AnnotationNode(COMPILESTATIC_CLASSNODE);
                impl.addAnnotation(an);
                cNode.addTransform(StaticCompileTransformation.class, an);
                cNode.addMethod(impl);
            }
        }
    }
}

Example 80 with BinaryExpression

use of org.codehaus.groovy.ast.expr.BinaryExpression in project groovy by apache.

the class TraitReceiverTransformer method transform.

@Override
public Expression transform(final Expression exp) {
    ClassNode weavedType = weaved.getOriginType();
    if (exp instanceof BinaryExpression) {
        return transformBinaryExpression((BinaryExpression) exp, weavedType);
    } else if (exp instanceof StaticMethodCallExpression) {
        StaticMethodCallExpression call = (StaticMethodCallExpression) exp;
        ClassNode ownerType = call.getOwnerType();
        if (traitClass.equals(ownerType)) {
            MethodCallExpression result = new MethodCallExpression(new VariableExpression(weaved), call.getMethod(), transform(call.getArguments()));
            result.setSafe(false);
            result.setImplicitThis(false);
            result.setSpreadSafe(false);
            result.setSourcePosition(call);
            return result;
        }
    } else if (exp instanceof MethodCallExpression) {
        MethodCallExpression call = (MethodCallExpression) exp;
        Expression obj = call.getObjectExpression();
        if (call.isImplicitThis() || "this".equals(obj.getText())) {
            return transformMethodCallOnThis(call);
        } else if ("super".equals(obj.getText())) {
            return transformSuperMethodCall(call);
        }
    } else if (exp instanceof FieldExpression) {
        return transformFieldExpression((FieldExpression) exp);
    } else if (exp instanceof VariableExpression) {
        VariableExpression vexp = (VariableExpression) exp;
        Variable accessedVariable = vexp.getAccessedVariable();
        if (accessedVariable instanceof FieldNode) {
            FieldNode fn = (FieldNode) accessedVariable;
            Expression receiver = createFieldHelperReceiver();
            MethodCallExpression mce;
            boolean isStatic = fn.isStatic();
            if (isStatic) {
                receiver = createStaticReceiver(receiver);
            }
            mce = new MethodCallExpression(receiver, Traits.helperGetterName(fn), ArgumentListExpression.EMPTY_ARGUMENTS);
            mce.setSourcePosition(exp);
            mce.setImplicitThis(false);
            markDynamicCall(mce, fn, isStatic);
            return mce;
        } else if (accessedVariable instanceof PropertyNode) {
            String propName = accessedVariable.getName();
            if (knownFields.contains(propName)) {
                return createFieldHelperCall(exp, weavedType, propName);
            } else {
                return new PropertyExpression(new VariableExpression(weaved), accessedVariable.getName());
            }
        } else if (accessedVariable instanceof DynamicVariable) {
            return new PropertyExpression(new VariableExpression(weaved), accessedVariable.getName());
        }
        if (vexp.isThisExpression()) {
            VariableExpression res = new VariableExpression(weaved);
            res.setSourcePosition(exp);
            return res;
        }
        if (vexp.isSuperExpression()) {
            throwSuperError(vexp);
        }
    } else if (exp instanceof PropertyExpression) {
        PropertyExpression pexp = (PropertyExpression) exp;
        Expression object = pexp.getObjectExpression();
        if (pexp.isImplicitThis() || "this".equals(object.getText())) {
            String propName = pexp.getPropertyAsString();
            if (knownFields.contains(propName)) {
                return createFieldHelperCall(exp, weavedType, propName);
            }
        }
    } else if (exp instanceof ClosureExpression) {
        MethodCallExpression mce = new MethodCallExpression(exp, "rehydrate", new ArgumentListExpression(new VariableExpression(weaved), new VariableExpression(weaved), new VariableExpression(weaved)));
        mce.setImplicitThis(false);
        mce.setSourcePosition(exp);
        boolean oldInClosure = inClosure;
        inClosure = true;
        ((ClosureExpression) exp).getCode().visit(this);
        inClosure = oldInClosure;
        // The rewrite we do is causing some troubles with type checking, which will
        // not be able to perform closure parameter type inference
        // so we store the replacement, which will be done *after* type checking.
        exp.putNodeMetaData(TraitASTTransformation.POST_TYPECHECKING_REPLACEMENT, mce);
        return exp;
    }
    // todo: unary expressions (field++, field+=, ...)
    return super.transform(exp);
}