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

Example 6 with ConstructorCallExpression

use of org.codehaus.groovy.ast.expr.ConstructorCallExpression in project groovy-core by groovy.

the class Verifier method addGroovyObjectInterfaceAndMethods.

protected void addGroovyObjectInterfaceAndMethods(ClassNode node, final String classInternalName) {
    if (!node.isDerivedFromGroovyObject())
        node.addInterface(ClassHelper.make(GroovyObject.class));
    FieldNode metaClassField = getMetaClassField(node);
    if (!node.hasMethod("getMetaClass", Parameter.EMPTY_ARRAY)) {
        metaClassField = setMetaClassFieldIfNotExists(node, metaClassField);
        addMethod(node, !Modifier.isAbstract(node.getModifiers()), "getMetaClass", ACC_PUBLIC, ClassHelper.METACLASS_TYPE, Parameter.EMPTY_ARRAY, ClassNode.EMPTY_ARRAY, new BytecodeSequence(new BytecodeInstruction() {

            public void visit(MethodVisitor mv) {
                Label nullLabel = new Label();
                /**
                             *  the code is:
                             *  if (this.metaClass==null) {
                             *      this.metaClass = this.$getStaticMetaClass
                             *      return this.metaClass
                             *  } else {
                             *      return this.metaClass
                             *  }
                             *  with the optimization that the result of the
                             *  first this.metaClass is duped on the operand
                             *  stack and reused for the return in the else part
                             */
                mv.visitVarInsn(ALOAD, 0);
                mv.visitFieldInsn(GETFIELD, classInternalName, "metaClass", "Lgroovy/lang/MetaClass;");
                mv.visitInsn(DUP);
                mv.visitJumpInsn(IFNULL, nullLabel);
                mv.visitInsn(ARETURN);
                mv.visitLabel(nullLabel);
                mv.visitInsn(POP);
                mv.visitVarInsn(ALOAD, 0);
                mv.visitInsn(DUP);
                mv.visitMethodInsn(INVOKEVIRTUAL, classInternalName, "$getStaticMetaClass", "()Lgroovy/lang/MetaClass;", false);
                mv.visitFieldInsn(PUTFIELD, classInternalName, "metaClass", "Lgroovy/lang/MetaClass;");
                mv.visitVarInsn(ALOAD, 0);
                mv.visitFieldInsn(GETFIELD, classInternalName, "metaClass", "Lgroovy/lang/MetaClass;");
                mv.visitInsn(ARETURN);
            }
        }));
    }
    Parameter[] parameters = new Parameter[] { new Parameter(ClassHelper.METACLASS_TYPE, "mc") };
    if (!node.hasMethod("setMetaClass", parameters)) {
        metaClassField = setMetaClassFieldIfNotExists(node, metaClassField);
        Statement setMetaClassCode;
        if (Modifier.isFinal(metaClassField.getModifiers())) {
            ConstantExpression text = new ConstantExpression("cannot set read-only meta class");
            ConstructorCallExpression cce = new ConstructorCallExpression(ClassHelper.make(IllegalArgumentException.class), text);
            setMetaClassCode = new ExpressionStatement(cce);
        } else {
            List list = new ArrayList();
            list.add(new BytecodeInstruction() {

                public void visit(MethodVisitor mv) {
                    /**
                         * the code is (meta class is stored in 1):
                         * this.metaClass = <1>
                         */
                    mv.visitVarInsn(ALOAD, 0);
                    mv.visitVarInsn(ALOAD, 1);
                    mv.visitFieldInsn(PUTFIELD, classInternalName, "metaClass", "Lgroovy/lang/MetaClass;");
                    mv.visitInsn(RETURN);
                }
            });
            setMetaClassCode = new BytecodeSequence(list);
        }
        addMethod(node, !Modifier.isAbstract(node.getModifiers()), "setMetaClass", ACC_PUBLIC, ClassHelper.VOID_TYPE, SET_METACLASS_PARAMS, ClassNode.EMPTY_ARRAY, setMetaClassCode);
    }
    if (!node.hasMethod("invokeMethod", INVOKE_METHOD_PARAMS)) {
        VariableExpression vMethods = new VariableExpression("method");
        VariableExpression vArguments = new VariableExpression("arguments");
        VariableScope blockScope = new VariableScope();
        blockScope.putReferencedLocalVariable(vMethods);
        blockScope.putReferencedLocalVariable(vArguments);
        addMethod(node, !Modifier.isAbstract(node.getModifiers()), "invokeMethod", ACC_PUBLIC, ClassHelper.OBJECT_TYPE, INVOKE_METHOD_PARAMS, ClassNode.EMPTY_ARRAY, new BytecodeSequence(new BytecodeInstruction() {

            public void visit(MethodVisitor mv) {
                mv.visitVarInsn(ALOAD, 0);
                mv.visitMethodInsn(INVOKEVIRTUAL, classInternalName, "getMetaClass", "()Lgroovy/lang/MetaClass;", false);
                mv.visitVarInsn(ALOAD, 0);
                mv.visitVarInsn(ALOAD, 1);
                mv.visitVarInsn(ALOAD, 2);
                mv.visitMethodInsn(INVOKEINTERFACE, "groovy/lang/MetaClass", "invokeMethod", "(Ljava/lang/Object;Ljava/lang/String;Ljava/lang/Object;)Ljava/lang/Object;", true);
                mv.visitInsn(ARETURN);
            }
        }));
    }
    if (!node.hasMethod("getProperty", GET_PROPERTY_PARAMS)) {
        addMethod(node, !Modifier.isAbstract(node.getModifiers()), "getProperty", ACC_PUBLIC, ClassHelper.OBJECT_TYPE, GET_PROPERTY_PARAMS, ClassNode.EMPTY_ARRAY, new BytecodeSequence(new BytecodeInstruction() {

            public void visit(MethodVisitor mv) {
                mv.visitVarInsn(ALOAD, 0);
                mv.visitMethodInsn(INVOKEVIRTUAL, classInternalName, "getMetaClass", "()Lgroovy/lang/MetaClass;", false);
                mv.visitVarInsn(ALOAD, 0);
                mv.visitVarInsn(ALOAD, 1);
                mv.visitMethodInsn(INVOKEINTERFACE, "groovy/lang/MetaClass", "getProperty", "(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;", true);
                mv.visitInsn(ARETURN);
            }
        }));
    }
    if (!node.hasMethod("setProperty", SET_PROPERTY_PARAMS)) {
        addMethod(node, !Modifier.isAbstract(node.getModifiers()), "setProperty", ACC_PUBLIC, ClassHelper.VOID_TYPE, SET_PROPERTY_PARAMS, ClassNode.EMPTY_ARRAY, new BytecodeSequence(new BytecodeInstruction() {

            public void visit(MethodVisitor mv) {
                mv.visitVarInsn(ALOAD, 0);
                mv.visitMethodInsn(INVOKEVIRTUAL, classInternalName, "getMetaClass", "()Lgroovy/lang/MetaClass;", false);
                mv.visitVarInsn(ALOAD, 0);
                mv.visitVarInsn(ALOAD, 1);
                mv.visitVarInsn(ALOAD, 2);
                mv.visitMethodInsn(INVOKEINTERFACE, "groovy/lang/MetaClass", "setProperty", "(Ljava/lang/Object;Ljava/lang/String;Ljava/lang/Object;)V", true);
                mv.visitInsn(RETURN);
            }
        }));
    }
}

Example 7 with ConstructorCallExpression

use of org.codehaus.groovy.ast.expr.ConstructorCallExpression in project groovy-core by groovy.

the class Verifier method addInitialization.

protected void addInitialization(ClassNode node, ConstructorNode constructorNode) {
    Statement firstStatement = constructorNode.getFirstStatement();
    // if some transformation decided to generate constructor then it probably knows who it does
    if (firstStatement instanceof BytecodeSequence)
        return;
    ConstructorCallExpression first = getFirstIfSpecialConstructorCall(firstStatement);
    // in case of this(...) let the other constructor do the init
    if (first != null && (first.isThisCall()))
        return;
    List<Statement> statements = new ArrayList<Statement>();
    List<Statement> staticStatements = new ArrayList<Statement>();
    final boolean isEnum = node.isEnum();
    List<Statement> initStmtsAfterEnumValuesInit = new ArrayList<Statement>();
    Set<String> explicitStaticPropsInEnum = new HashSet<String>();
    if (isEnum) {
        for (PropertyNode propNode : node.getProperties()) {
            if (!propNode.isSynthetic() && propNode.getField().isStatic()) {
                explicitStaticPropsInEnum.add(propNode.getField().getName());
            }
        }
        for (FieldNode fieldNode : node.getFields()) {
            if (!fieldNode.isSynthetic() && fieldNode.isStatic() && fieldNode.getType() != node) {
                explicitStaticPropsInEnum.add(fieldNode.getName());
            }
        }
    }
    if (!Traits.isTrait(node)) {
        for (FieldNode fn : node.getFields()) {
            addFieldInitialization(statements, staticStatements, fn, isEnum, initStmtsAfterEnumValuesInit, explicitStaticPropsInEnum);
        }
    }
    statements.addAll(node.getObjectInitializerStatements());
    Statement code = constructorNode.getCode();
    BlockStatement block = new BlockStatement();
    List<Statement> otherStatements = block.getStatements();
    if (code instanceof BlockStatement) {
        block = (BlockStatement) code;
        otherStatements = block.getStatements();
    } else if (code != null) {
        otherStatements.add(code);
    }
    if (!otherStatements.isEmpty()) {
        if (first != null) {
            // it is super(..) since this(..) is already covered
            otherStatements.remove(0);
            statements.add(0, firstStatement);
        }
        Statement stmtThis$0 = getImplicitThis$0StmtIfInnerClass(otherStatements);
        if (stmtThis$0 != null) {
            // since there can be field init statements that depend on method/property dispatching
            // that uses this$0, it needs to bubble up before the super call itself (GROOVY-4471)
            statements.add(0, stmtThis$0);
        }
        statements.addAll(otherStatements);
    }
    BlockStatement newBlock = new BlockStatement(statements, block.getVariableScope());
    newBlock.setSourcePosition(block);
    constructorNode.setCode(newBlock);
    if (!staticStatements.isEmpty()) {
        if (isEnum) {
            /*
                 * GROOVY-3161: initialize statements for explicitly declared static fields
                 * inside an enum should come after enum values are initialized
                 */
            staticStatements.removeAll(initStmtsAfterEnumValuesInit);
            node.addStaticInitializerStatements(staticStatements, true);
            if (!initStmtsAfterEnumValuesInit.isEmpty()) {
                node.positionStmtsAfterEnumInitStmts(initStmtsAfterEnumValuesInit);
            }
        } else {
            node.addStaticInitializerStatements(staticStatements, true);
        }
    }
}

Example 8 with ConstructorCallExpression

use of org.codehaus.groovy.ast.expr.ConstructorCallExpression in project grails-core by grails.

the class AbstractGrailsArtefactTransformer method performInstanceImplementationInjection.

protected void performInstanceImplementationInjection(SourceUnit source, ClassNode classNode, Map<String, ClassNode> genericsPlaceholders, Class instanceImplementation) {
    ClassNode implementationNode;
    final ConstructorCallExpression constructorCallExpression;
    try {
        implementationNode = GrailsASTUtils.replaceGenericsPlaceholders(ClassHelper.make(instanceImplementation), genericsPlaceholders);
        constructorCallExpression = GrailsASTUtils.hasZeroArgsConstructor(implementationNode) ? new ConstructorCallExpression(implementationNode, ZERO_ARGS) : null;
    } catch (Throwable e) {
        // this may well be ok, as we want to be able to compile against, for example, non servlet environments. In this case just bail out.
        return;
    }
    String apiInstanceProperty = INSTANCE_PREFIX + instanceImplementation.getSimpleName();
    Expression apiInstance = new VariableExpression(apiInstanceProperty, implementationNode);
    if (requiresStaticLookupMethod()) {
        final String lookupMethodName = CURRENT_PREFIX + instanceImplementation.getSimpleName();
        MethodNode lookupMethod = createStaticLookupMethod(classNode, implementationNode, apiInstanceProperty, lookupMethodName);
        apiInstance = new MethodCallExpression(new ClassExpression(classNode), lookupMethodName, ZERO_ARGS);
        ((MethodCallExpression) apiInstance).setMethodTarget(lookupMethod);
    } else if (requiresAutowiring()) {
        PropertyNode propertyNode = new PropertyNode(apiInstanceProperty, Modifier.PUBLIC, implementationNode, classNode, constructorCallExpression, null, null);
        propertyNode.addAnnotation(AUTO_WIRED_ANNOTATION);
        if (getMarkerAnnotation() != null) {
            propertyNode.addAnnotation(getMarkerAnnotation());
        }
        classNode.addProperty(propertyNode);
    } else {
        FieldNode fieldNode = classNode.getField(apiInstanceProperty);
        if (fieldNode == null || (Modifier.isPrivate(fieldNode.getModifiers()) && !fieldNode.getDeclaringClass().equals(classNode))) {
            fieldNode = new FieldNode(apiInstanceProperty, PRIVATE_STATIC_MODIFIER, implementationNode, classNode, constructorCallExpression);
            classNode.addField(fieldNode);
        }
    }
    while (!implementationNode.equals(AbstractGrailsArtefactTransformer.OBJECT_CLASS)) {
        List<MethodNode> declaredMethods = implementationNode.getMethods();
        for (MethodNode declaredMethod : declaredMethods) {
            if (GrailsASTUtils.isConstructorMethod(declaredMethod)) {
                GrailsASTUtils.addDelegateConstructor(classNode, declaredMethod, genericsPlaceholders);
            } else if (isCandidateInstanceMethod(classNode, declaredMethod)) {
                addDelegateInstanceMethod(classNode, apiInstance, declaredMethod, getMarkerAnnotation(), genericsPlaceholders);
            }
        }
        implementationNode = implementationNode.getSuperClass();
    }
    performInjectionInternal(apiInstanceProperty, source, classNode);
}

Example 9 with ConstructorCallExpression

use of org.codehaus.groovy.ast.expr.ConstructorCallExpression in project grails-core by grails.

the class AbstractGrailsArtefactTransformer method performStaticImplementationInjection.

protected void performStaticImplementationInjection(ClassNode classNode, Map<String, ClassNode> genericsPlaceholders, Class staticImplementation) {
    ClassNode staticImplementationNode = GrailsASTUtils.replaceGenericsPlaceholders(ClassHelper.make(staticImplementation), genericsPlaceholders);
    final List<MethodNode> declaredMethods = staticImplementationNode.getMethods();
    final String staticImplementationSimpleName = staticImplementation.getSimpleName();
    String apiInstanceProperty = STATIC_PREFIX + staticImplementationSimpleName;
    final String lookupMethodName = CURRENT_PREFIX + staticImplementationSimpleName;
    if (!requiresStaticLookupMethod()) {
        final ConstructorCallExpression constructorCallExpression = new ConstructorCallExpression(staticImplementationNode, ZERO_ARGS);
        addApiLookupFieldAndSetter(classNode, staticImplementationNode, apiInstanceProperty, constructorCallExpression);
    }
    MethodNode lookupMethod = createStaticLookupMethod(classNode, staticImplementationNode, apiInstanceProperty, lookupMethodName);
    MethodCallExpression apiLookupMethod = new MethodCallExpression(new ClassExpression(classNode), lookupMethodName, ZERO_ARGS);
    apiLookupMethod.setMethodTarget(lookupMethod);
    for (MethodNode declaredMethod : declaredMethods) {
        if (isStaticCandidateMethod(classNode, declaredMethod)) {
            addDelegateStaticMethod(classNode, apiLookupMethod, declaredMethod, genericsPlaceholders);
        }
    }
}

Example 10 with ConstructorCallExpression

use of org.codehaus.groovy.ast.expr.ConstructorCallExpression in project grails-core by grails.

the class AbstractGrailsArtefactTransformer method populateAutowiredApiLookupMethod.

protected MethodNode populateAutowiredApiLookupMethod(ClassNode classNode, ClassNode implementationNode, String apiProperty, String methodName, BlockStatement methodBody) {
    addApiLookupFieldAndSetter(classNode, implementationNode, apiProperty, null);
    VariableExpression apiVar = new VariableExpression(apiProperty, implementationNode);
    BlockStatement ifBlock = new BlockStatement();
    ArgumentListExpression arguments = new ArgumentListExpression();
    arguments.addExpression(new ConstantExpression("Method on class [" + classNode + "] was used outside of a Grails application. If running in the context of a test using the mocking API or bootstrap Grails correctly."));
    ifBlock.addStatement(new ThrowStatement(new ConstructorCallExpression(new ClassNode(IllegalStateException.class), arguments)));
    BlockStatement elseBlock = new BlockStatement();
    elseBlock.addStatement(new ReturnStatement(apiVar));
    methodBody.addStatement(new IfStatement(new BooleanExpression(new BinaryExpression(apiVar, GrailsASTUtils.EQUALS_OPERATOR, GrailsASTUtils.NULL_EXPRESSION)), ifBlock, elseBlock));
    MethodNode methodNode = new MethodNode(methodName, PUBLIC_STATIC_MODIFIER, implementationNode, ZERO_PARAMETERS, null, methodBody);
    return methodNode;
}