truffle: graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/generator/NodeCodeGenerator.java comparison

comparison graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/generator/NodeCodeGenerator.java @ 18752:1acaa69ff61b

Truffle-DSL: refactor generator classes

author	Christian Humer <christian.humer@gmail.com>
date	Mon, 29 Dec 2014 23:38:16 +0100
parents	58eb9bbb60c4
children	f6b8787dc113

comparison

equal deleted inserted replaced

-:e55e18c1f40d
+:1acaa69ff61b
 /*
-* Copyright (c) 2012, 2012, Oracle and/or its affiliates. All rights reserved.
+* Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
 package com.oracle.truffle.dsl.processor.generator;
-import static com.oracle.truffle.dsl.processor.java.ElementUtils.*;
-import static javax.lang.model.element.Modifier.*;
 import java.util.*;
 import javax.lang.model.element.*;
-import javax.lang.model.type.*;
-import javax.lang.model.util.*;
-import com.oracle.truffle.api.dsl.*;
-import com.oracle.truffle.api.nodes.*;
-import com.oracle.truffle.dsl.processor.*;
-import com.oracle.truffle.dsl.processor.java.*;
 import com.oracle.truffle.dsl.processor.java.model.*;
-import com.oracle.truffle.dsl.processor.java.model.CodeTypeMirror.ArrayCodeTypeMirror;
 import com.oracle.truffle.dsl.processor.model.*;
-import com.oracle.truffle.dsl.processor.model.NodeChildData.Cardinality;
-import com.oracle.truffle.dsl.processor.parser.*;
-import com.oracle.truffle.dsl.processor.parser.SpecializationGroup.TypeGuard;
 public class NodeCodeGenerator extends AbstractCompilationUnitFactory<NodeData> {
-private static final String THIS_NODE_LOCAL_VAR_NAME = "thisNode";
-private static final String EXECUTE_CHAINED = "executeChained0";
-private static final String SPECIALIZE = "specialize0";
-private static final String DSLSHARE_REWRITE = "rewrite";
-private static final String DSLSHARE_FIND_ROOT = "findRoot";
-private static final String DSLSHARE_REWRITE_TO_POLYMORHPIC = "rewriteToPolymorphic";
-private static final String EXECUTE_UNINITIALIZED = "executeUninitialized0";
-private static final String REWRITE = "rewrite0";
-private static final String CREATE_INFO = "createInfo0";
-private static final String CONTAINS_FALLBACK = "containsFallback";
-private static final String FACTORY_METHOD_NAME = "create0";
-private static final String EMPTY_CLASS_ARRAY = "EMPTY_CLASS_ARRAY";
-private static final String METADATA_FIELD_NAME = "METADATA";
-private TypeMirror getUnexpectedValueException() {
-return getContext().getTruffleTypes().getUnexpectedValueException();
-}
-private static String factoryClassName(NodeData node) {
-return node.getNodeId() + "Factory";
-}
-private static String nodeSpecializationClassName(SpecializationData specialization) {
-String nodeid = resolveNodeId(specialization.getNode());
-String name = ElementUtils.firstLetterUpperCase(nodeid);
-name += ElementUtils.firstLetterUpperCase(specialization.getId());
-name += "Node";
-return name;
-}
-private static String nodePolymorphicClassName(NodeData node) {
-return ElementUtils.firstLetterUpperCase(resolveNodeId(node)) + "PolymorphicNode";
-}
-private static String resolveNodeId(NodeData node) {
-String nodeid = node.getNodeId();
-if (nodeid.endsWith("Node") && !nodeid.equals("Node")) {
-nodeid = nodeid.substring(0, nodeid.length() - 4);
-}
-return nodeid;
-}
-private static String valueNameEvaluated(Parameter targetParameter) {
-return valueName(targetParameter) + "Evaluated";
-}
-private static String implicitTypeName(Parameter param) {
-return param.getLocalName() + "ImplicitType";
-}
-private static String polymorphicTypeName(NodeExecutionData param) {
-return param.getName() + "PolymorphicType";
-}
-private static String valueName(Parameter param) {
-return param.getLocalName();
-}
-private static CodeTree createAccessChild(NodeExecutionData targetExecution, String thisReference) {
-String reference = thisReference;
-if (reference == null) {
-reference = "this";
-}
-CodeTreeBuilder builder = CodeTreeBuilder.createBuilder();
-Element accessElement = targetExecution.getChild().getAccessElement();
-if (accessElement == null || accessElement.getKind() == ElementKind.METHOD) {
-builder.string(reference).string(".").string(targetExecution.getChild().getName());
-} else if (accessElement.getKind() == ElementKind.FIELD) {
-builder.string(reference).string(".").string(accessElement.getSimpleName().toString());
-} else {
-throw new AssertionError();
-}
-if (targetExecution.isIndexed()) {
-builder.string("[" + targetExecution.getIndex() + "]");
-}
-return builder.getRoot();
-}
-private static String castValueName(Parameter parameter) {
-return valueName(parameter) + "Cast";
-}
-private void addInternalValueParameters(CodeExecutableElement method, TemplateMethod specialization, boolean forceFrame, boolean disableFrame, boolean evaluated) {
-if (forceFrame && !disableFrame && specialization.getSpecification().findParameterSpec("frame") != null) {
-method.addParameter(new CodeVariableElement(getContext().getTruffleTypes().getFrame(), "frameValue"));
-}
-for (Parameter parameter : specialization.getParameters()) {
-ParameterSpec spec = parameter.getSpecification();
-if ((disableFrame || forceFrame) && spec.getName().equals("frame")) {
-continue;
-}
-if (spec.isLocal()) {
-continue;
-}
-String name = valueName(parameter);
-if (evaluated && spec.isSignature()) {
-name = valueNameEvaluated(parameter);
-}
-method.addParameter(new CodeVariableElement(parameter.getType(), name));
-}
-}
-private static void addInternalValueParameterNames(CodeTreeBuilder builder, TemplateMethod source, TemplateMethod specialization, String unexpectedValueName, boolean forceFrame,
-boolean disableFrame, Map<String, String> customNames) {
-if (forceFrame && !disableFrame && specialization.getSpecification().findParameterSpec("frame") != null) {
-builder.string("frameValue");
-}
-for (Parameter parameter : specialization.getParameters()) {
-ParameterSpec spec = parameter.getSpecification();
-if ((disableFrame || forceFrame) && spec.getName().equals("frame")) {
-continue;
-}
-if (parameter.getSpecification().isLocal()) {
-continue;
-}
-Parameter sourceParameter = source.findParameter(parameter.getLocalName());
-if (customNames != null && customNames.containsKey(parameter.getLocalName())) {
-builder.string(customNames.get(parameter.getLocalName()));
-} else if (unexpectedValueName != null && parameter.getLocalName().equals(unexpectedValueName)) {
-builder.cast(parameter.getType(), CodeTreeBuilder.singleString("ex.getResult()"));
-} else if (sourceParameter != null) {
-builder.string(valueName(sourceParameter, parameter));
-} else {
-builder.string(valueName(parameter));
-}
-}
-}
-private static String valueName(Parameter sourceParameter, Parameter targetParameter) {
-if (!sourceParameter.getSpecification().isSignature()) {
-return valueName(targetParameter);
-} else if (sourceParameter.getTypeSystemType() != null && targetParameter.getTypeSystemType() != null) {
-if (sourceParameter.getTypeSystemType().needsCastTo(targetParameter.getTypeSystemType())) {
-return castValueName(targetParameter);
-}
-}
-return valueName(targetParameter);
-}
-private static CodeTree createTemplateMethodCall(CodeTreeBuilder parent, CodeTree target, TemplateMethod sourceMethod, TemplateMethod targetMethod, String unexpectedValueName,
-String... customSignatureValueNames) {
-CodeTreeBuilder builder = parent.create();
-boolean castedValues = sourceMethod != targetMethod;
-builder.startGroup();
-ExecutableElement method = targetMethod.getMethod();
-if (method == null) {
-throw new UnsupportedOperationException();
-}
-TypeElement targetClass = ElementUtils.findNearestEnclosingType(method.getEnclosingElement());
-NodeData node = (NodeData) targetMethod.getTemplate();
-if (target == null) {
-boolean accessible = targetMethod.canBeAccessedByInstanceOf(node.getNodeType());
-if (accessible) {
-if (builder.findMethod().getModifiers().contains(STATIC)) {
-if (method.getModifiers().contains(STATIC)) {
-builder.type(targetClass.asType());
-} else {
-builder.string(THIS_NODE_LOCAL_VAR_NAME);
-}
-} else {
-if (targetMethod instanceof ExecutableTypeData) {
-builder.string("this");
-} else {
-builder.string("super");
-}
-}
-} else {
-if (method.getModifiers().contains(STATIC)) {
-builder.type(targetClass.asType());
-} else {
-Parameter firstParameter = null;
-for (Parameter searchParameter : targetMethod.getParameters()) {
-if (searchParameter.getSpecification().isSignature()) {
-firstParameter = searchParameter;
-break;
-}
-}
-if (firstParameter == null) {
-throw new AssertionError();
-}
-Parameter sourceParameter = sourceMethod.findParameter(firstParameter.getLocalName());
-if (castedValues && sourceParameter != null) {
-builder.string(valueName(sourceParameter, firstParameter));
-} else {
-builder.string(valueName(firstParameter));
-}
-}
-}
-builder.string(".");
-} else {
-builder.tree(target);
-}
-builder.startCall(method.getSimpleName().toString());
-int signatureIndex = 0;
-for (Parameter targetParameter : targetMethod.getParameters()) {
-Parameter valueParameter = null;
-if (sourceMethod != null) {
-valueParameter = sourceMethod.findParameter(targetParameter.getLocalName());
-}
-if (valueParameter == null) {
-valueParameter = targetParameter;
-}
-TypeMirror targetType = targetParameter.getType();
-TypeMirror valueType = null;
-if (valueParameter != null) {
-valueType = valueParameter.getType();
-}
-if (signatureIndex < customSignatureValueNames.length && targetParameter.getSpecification().isSignature()) {
-builder.string(customSignatureValueNames[signatureIndex]);
-signatureIndex++;
-} else if (targetParameter.getSpecification().isLocal()) {
-builder.startGroup();
-if (builder.findMethod().getModifiers().contains(Modifier.STATIC)) {
-builder.string(THIS_NODE_LOCAL_VAR_NAME).string(".");
-} else {
-builder.string("this.");
-}
-builder.string(targetParameter.getSpecification().getName());
-builder.end();
-} else if (unexpectedValueName != null && targetParameter.getLocalName().equals(unexpectedValueName)) {
-builder.cast(targetParameter.getType(), CodeTreeBuilder.singleString("ex.getResult()"));
-} else if (!ElementUtils.needsCastTo(valueType, targetType)) {
-builder.startGroup();
-builder.string(valueName(targetParameter));
-builder.end();
-} else {
-builder.string(castValueName(targetParameter));
-}
-}
-builder.end().end();
-return builder.getRoot();
-}
-private static String baseClassName(NodeData node) {
-String nodeid = resolveNodeId(node);
-String name = ElementUtils.firstLetterUpperCase(nodeid);
-name += "BaseNode";
-return name;
-}
-private static CodeTree createCallTypeSystemMethod(CodeTreeBuilder parent, NodeData node, String methodName, CodeTree... args) {
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-startCallTypeSystemMethod(builder, node.getTypeSystem(), methodName);
-for (CodeTree arg : args) {
-builder.tree(arg);
-}
-builder.end().end();
-return builder.getRoot();
-}
-private static void startCallTypeSystemMethod(CodeTreeBuilder body, TypeSystemData typeSystem, String methodName) {
-GeneratedTypeMirror typeMirror = new GeneratedTypeMirror(ElementUtils.getPackageName(typeSystem.getTemplateType()), TypeSystemCodeGenerator.typeName(typeSystem));
-body.startGroup();
-body.staticReference(typeMirror, TypeSystemCodeGenerator.singletonName(typeSystem));
-body.string(".").startCall(methodName);
-}
-/**
-* <pre>
-* variant1 $condition != null
-*
-* $type $name = defaultValue($type);
-* if ($condition) {
-*     $name = $value;
-* }
-*
-* variant2 $condition != null
-* $type $name = $value;
-* </pre>
-*
-* .
-*/
-private static CodeTree createLazyAssignment(CodeTreeBuilder parent, String name, TypeMirror type, CodeTree condition, CodeTree value) {
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-if (condition == null) {
-builder.declaration(type, name, value);
-} else {
-builder.declaration(type, name, new CodeTreeBuilder(parent).defaultValue(type).getRoot());
-builder.startIf().tree(condition).end();
-builder.startBlock();
-builder.startStatement();
-builder.string(name);
-builder.string(" = ");
-builder.tree(value);
-builder.end(); // statement
-builder.end(); // block
-}
-return builder.getRoot();
-}
-private void emitEncounteredSynthetic(CodeTreeBuilder builder, TemplateMethod current) {
-CodeTreeBuilder nodes = builder.create();
-CodeTreeBuilder arguments = builder.create();
-nodes.startCommaGroup();
-arguments.startCommaGroup();
-boolean empty = true;
-for (Parameter parameter : current.getParameters()) {
-NodeExecutionData executionData = parameter.getSpecification().getExecution();
-if (executionData != null) {
-if (executionData.isShortCircuit()) {
-nodes.nullLiteral();
-arguments.string(valueName(parameter.getPreviousParameter()));
-}
-nodes.tree(createAccessChild(executionData, "rootNode"));
-arguments.string(valueName(parameter));
-empty = false;
-}
-}
-nodes.end();
-arguments.end();
-builder.startStatement().startStaticCall(context.getTruffleTypes().getCompilerDirectives(), "transferToInterpreter").end().end();
-builder.declaration(baseClassName(getModel()), "rootNode", builder.create().startStaticCall(context.getTruffleTypes().getDslShare(), DSLSHARE_FIND_ROOT).string("this").end());
-builder.startThrow().startNew(getContext().getType(UnsupportedSpecializationException.class));
-builder.string("rootNode");
-builder.startNewArray(getContext().getTruffleTypes().getNodeArray(), null);
-builder.tree(nodes.getRoot());
-builder.end();
-if (!empty) {
-builder.tree(arguments.getRoot());
-}
-builder.end().end();
-}
-private static List<ExecutableElement> findUserConstructors(TypeMirror nodeType) {
-List<ExecutableElement> constructors = new ArrayList<>();
-for (ExecutableElement constructor : ElementFilter.constructorsIn(ElementUtils.fromTypeMirror(nodeType).getEnclosedElements())) {
-if (constructor.getModifiers().contains(PRIVATE)) {
-continue;
-}
-if (isCopyConstructor(constructor)) {
-continue;
-}
-constructors.add(constructor);
-}
-if (constructors.isEmpty()) {
-constructors.add(new CodeExecutableElement(null, ElementUtils.getSimpleName(nodeType)));
-}
-return constructors;
-}
-private static ExecutableElement findCopyConstructor(TypeMirror type) {
-for (ExecutableElement constructor : ElementFilter.constructorsIn(ElementUtils.fromTypeMirror(type).getEnclosedElements())) {
-if (constructor.getModifiers().contains(PRIVATE)) {
-continue;
-}
-if (isCopyConstructor(constructor)) {
-return constructor;
-}
-}
-return null;
-}
-private static boolean isCopyConstructor(ExecutableElement element) {
-if (element.getParameters().size() != 1) {
-return false;
-}
-VariableElement var = element.getParameters().get(0);
-TypeElement enclosingType = ElementUtils.findNearestEnclosingType(var);
-if (ElementUtils.typeEquals(var.asType(), enclosingType.asType())) {
-return true;
-}
-List<TypeElement> types = ElementUtils.getDirectSuperTypes(enclosingType);
-for (TypeElement type : types) {
-if (!(type instanceof CodeTypeElement)) {
-// no copy constructors which are not generated types
-return false;
-}
-if (ElementUtils.typeEquals(var.asType(), type.asType())) {
-return true;
-}
-}
-return false;
-}
 @Override
 @SuppressWarnings("unchecked")
 protected void createChildren(NodeData node) {
 List<CodeTypeElement> casts = new ArrayList<>(getElement().getEnclosedElements());
 NodeFactoryFactory factory = new NodeFactoryFactory(childTypes);
 add(factory, node);
 factory.getElement().getEnclosedElements().addAll(casts);
 }
 }
-private static CodeTree createCastType(TypeSystemData typeSystem, TypeData sourceType, TypeData targetType, boolean expect, CodeTree value) {
-if (targetType == null) {
-return value;
-} else if (sourceType != null && !sourceType.needsCastTo(targetType)) {
-return value;
-}
-CodeTreeBuilder builder = CodeTreeBuilder.createBuilder();
-String targetMethodName;
-if (expect) {
-targetMethodName = TypeSystemCodeGenerator.expectTypeMethodName(targetType);
-} else {
-targetMethodName = TypeSystemCodeGenerator.asTypeMethodName(targetType);
-}
-startCallTypeSystemMethod(builder, typeSystem, targetMethodName);
-builder.tree(value);
-builder.end().end();
-return builder.getRoot();
-}
-private static CodeTree createExpectType(TypeSystemData typeSystem, TypeData sourceType, TypeData targetType, CodeTree expression) {
-return createCastType(typeSystem, sourceType, targetType, true, expression);
-}
-private CodeTree createDeoptimize(CodeTreeBuilder parent) {
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-builder.startStatement();
-builder.startStaticCall(getContext().getTruffleTypes().getCompilerDirectives(), "transferToInterpreterAndInvalidate").end();
-builder.end();
-return builder.getRoot();
-}
-private class NodeFactoryFactory extends AbstractClassElementFactory<NodeData> {
-private final Map<NodeData, List<TypeElement>> childTypes;
-private CodeTypeElement generatedNode;
-public NodeFactoryFactory(Map<NodeData, List<TypeElement>> childElements) {
-this.childTypes = childElements;
-}
-@Override
-protected CodeTypeElement create(NodeData node) {
-Modifier visibility = ElementUtils.getVisibility(node.getTemplateType().getModifiers());
-CodeTypeElement clazz = createClass(node, modifiers(), factoryClassName(node), null, false);
-if (visibility != null) {
-clazz.getModifiers().add(visibility);
-}
-clazz.getModifiers().add(Modifier.FINAL);
-return clazz;
-}
-@Override
-protected void createChildren(NodeData node) {
-CodeTypeElement clazz = getElement();
-Modifier createVisibility = ElementUtils.getVisibility(clazz.getModifiers());
-if (node.needsFactory()) {
-NodeBaseFactory factory = new NodeBaseFactory();
-add(factory, node.getGenericSpecialization() == null ? node.getSpecializations().get(0) : node.getGenericSpecialization());
-generatedNode = factory.getElement();
-createFactoryMethods(node, clazz, createVisibility);
-for (SpecializationData specialization : node.getSpecializations()) {
-if (!specialization.isReachable() || specialization.isGeneric()) {
-continue;
-}
-if (specialization.isPolymorphic() && node.isPolymorphic(context)) {
-PolymorphicNodeFactory polymorphicFactory = new PolymorphicNodeFactory(generatedNode);
-add(polymorphicFactory, specialization);
-continue;
-}
-add(new SpecializedNodeFactory(generatedNode), specialization);
-}
-TypeMirror nodeFactory = ElementUtils.getDeclaredType(ElementUtils.fromTypeMirror(getContext().getTruffleTypes().getNodeFactoryBase()), node.getNodeType());
-clazz.setSuperClass(nodeFactory);
-clazz.add(createNodeFactoryConstructor(node));
-clazz.add(createCreateNodeMethod(node));
-clazz.add(createGetInstanceMethod(node, createVisibility));
-clazz.add(createInstanceConstant(node, clazz.asType()));
-}
-for (NodeData childNode : childTypes.keySet()) {
-if (childNode.getTemplateType().getModifiers().contains(Modifier.PRIVATE)) {
-continue;
-}
-for (TypeElement type : childTypes.get(childNode)) {
-Set<Modifier> typeModifiers = ((CodeTypeElement) type).getModifiers();
-Modifier visibility = ElementUtils.getVisibility(type.getModifiers());
-typeModifiers.clear();
-if (visibility != null) {
-typeModifiers.add(visibility);
-}
-typeModifiers.add(Modifier.STATIC);
-typeModifiers.add(Modifier.FINAL);
-clazz.add(type);
-}
-}
-List<NodeData> children = node.getNodeDeclaringChildren();
-if (node.getDeclaringNode() == null && children.size() > 0) {
-clazz.add(createGetFactories(node));
-}
-}
-private Element createNodeFactoryConstructor(NodeData node) {
-CodeExecutableElement method = new CodeExecutableElement(modifiers(PRIVATE), null, factoryClassName(node));
-CodeTreeBuilder builder = method.createBuilder();
-builder.startStatement();
-builder.startCall("super");
-// node type
-builder.typeLiteral(node.getNodeType());
-// execution signature
-builder.startGroup();
-if (node.getChildExecutions().isEmpty()) {
-builder.staticReference(context.getTruffleTypes().getDslMetadata(), EMPTY_CLASS_ARRAY);
-} else {
-builder.startNewArray(new ArrayCodeTypeMirror(context.getType(Class.class)), null);
-for (NodeExecutionData execution : node.getChildExecutions()) {
-builder.typeLiteral(execution.getNodeType());
-}
-builder.end();
-}
-builder.end();
-// node signatures
-builder.startGroup();
-builder.startNewArray(new ArrayCodeTypeMirror(new ArrayCodeTypeMirror(context.getType(Class.class))), null);
-List<ExecutableElement> constructors = findUserConstructors(generatedNode.asType());
-for (ExecutableElement constructor : constructors) {
-builder.startGroup();
-if (constructor.getParameters().isEmpty()) {
-builder.staticReference(context.getTruffleTypes().getDslMetadata(), EMPTY_CLASS_ARRAY);
-} else {
-builder.startNewArray(new ArrayCodeTypeMirror(context.getType(Class.class)), null);
-for (VariableElement var : constructor.getParameters()) {
-builder.typeLiteral(var.asType());
-}
-builder.end();
-}
-builder.end();
-}
-builder.end();
-builder.end();
-builder.end().end().end();
-return method;
-}
-private CodeExecutableElement createCreateNodeMethod(NodeData node) {
-CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), node.getNodeType(), "createNode");
-CodeVariableElement arguments = new CodeVariableElement(getContext().getType(Object.class), "arguments");
-method.setVarArgs(true);
-method.addParameter(arguments);
-CodeTreeBuilder builder = method.createBuilder();
-List<ExecutableElement> signatures = findUserConstructors(generatedNode.asType());
-boolean ifStarted = false;
-for (ExecutableElement element : signatures) {
-ifStarted = builder.startIf(ifStarted);
-builder.string("arguments.length == " + element.getParameters().size());
-int index = 0;
-for (VariableElement param : element.getParameters()) {
-if (ElementUtils.isObject(param.asType())) {
-continue;
-}
-builder.string(" && ");
-if (!param.asType().getKind().isPrimitive()) {
-builder.string("(arguments[" + index + "] == null || ");
-}
-builder.string("arguments[" + index + "] instanceof ");
-builder.type(ElementUtils.boxType(getContext(), param.asType()));
-if (!param.asType().getKind().isPrimitive()) {
-builder.string(")");
-}
-index++;
-}
-builder.end();
-builder.startBlock();
-builder.startReturn().startCall("create");
-index = 0;
-for (VariableElement param : element.getParameters()) {
-builder.startGroup();
-if (!ElementUtils.isObject(param.asType())) {
-builder.string("(").type(param.asType()).string(") ");
-}
-builder.string("arguments[").string(String.valueOf(index)).string("]");
-builder.end();
-index++;
-}
-builder.end().end();
-builder.end(); // block
-}
-builder.startElseBlock();
-builder.startThrow().startNew(getContext().getType(IllegalArgumentException.class));
-builder.doubleQuote("Invalid create signature.");
-builder.end().end();
-builder.end(); // else block
-return method;
-}
-private ExecutableElement createGetInstanceMethod(NodeData node, Modifier visibility) {
-TypeElement nodeFactoryType = ElementUtils.fromTypeMirror(getContext().getType(NodeFactory.class));
-TypeMirror returnType = ElementUtils.getDeclaredType(nodeFactoryType, node.getNodeType());
-CodeExecutableElement method = new CodeExecutableElement(modifiers(), returnType, "getInstance");
-if (visibility != null) {
-method.getModifiers().add(visibility);
-}
-method.getModifiers().add(Modifier.STATIC);
-String varName = instanceVarName(node);
-CodeTreeBuilder builder = method.createBuilder();
-builder.startIf();
-builder.string(varName).string(" == null");
-builder.end().startBlock();
-builder.startStatement();
-builder.string(varName);
-builder.string(" = ");
-builder.startNew(factoryClassName(node)).end();
-builder.end();
-builder.end();
-builder.startReturn().string(varName).end();
-return method;
-}
-private String instanceVarName(NodeData node) {
-if (node.getDeclaringNode() != null) {
-return ElementUtils.firstLetterLowerCase(factoryClassName(node)) + "Instance";
-} else {
-return "instance";
-}
-}
-private CodeVariableElement createInstanceConstant(NodeData node, TypeMirror factoryType) {
-String varName = instanceVarName(node);
-CodeVariableElement var = new CodeVariableElement(modifiers(), factoryType, varName);
-var.getModifiers().add(Modifier.PRIVATE);
-var.getModifiers().add(Modifier.STATIC);
-return var;
-}
-private ExecutableElement createGetFactories(NodeData node) {
-List<NodeData> children = node.getNodeDeclaringChildren();
-if (node.needsFactory()) {
-children.add(node);
-}
-List<TypeMirror> nodeTypesList = new ArrayList<>();
-TypeMirror prev = null;
-boolean allSame = true;
-for (NodeData child : children) {
-nodeTypesList.add(child.getNodeType());
-if (prev != null && !ElementUtils.typeEquals(child.getNodeType(), prev)) {
-allSame = false;
-}
-prev = child.getNodeType();
-}
-TypeMirror commonNodeSuperType = ElementUtils.getCommonSuperType(getContext(), nodeTypesList.toArray(new TypeMirror[nodeTypesList.size()]));
-Types types = getContext().getEnvironment().getTypeUtils();
-TypeMirror factoryType = getContext().getType(NodeFactory.class);
-TypeMirror baseType;
-if (allSame) {
-baseType = ElementUtils.getDeclaredType(ElementUtils.fromTypeMirror(factoryType), commonNodeSuperType);
-} else {
-baseType = ElementUtils.getDeclaredType(ElementUtils.fromTypeMirror(factoryType), types.getWildcardType(commonNodeSuperType, null));
-}
-TypeMirror listType = ElementUtils.getDeclaredType(ElementUtils.fromTypeMirror(getContext().getType(List.class)), baseType);
-CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC, STATIC), listType, "getFactories");
-CodeTreeBuilder builder = method.createBuilder();
-builder.startReturn();
-builder.startStaticCall(getContext().getType(Arrays.class), "asList");
-for (NodeData child : children) {
-builder.startGroup();
-NodeData childNode = child;
-List<NodeData> factories = new ArrayList<>();
-while (childNode.getDeclaringNode() != null) {
-factories.add(childNode);
-childNode = childNode.getDeclaringNode();
-}
-Collections.reverse(factories);
-for (NodeData nodeData : factories) {
-builder.string(factoryClassName(nodeData)).string(".");
-}
-builder.string("getInstance()");
-builder.end();
-}
-builder.end();
-builder.end();
-return method;
-}
-private void createFactoryMethods(NodeData node, CodeTypeElement clazz, Modifier createVisibility) {
-List<ExecutableElement> constructors = findUserConstructors(generatedNode.asType());
-for (ExecutableElement constructor : constructors) {
-clazz.add(createCreateMethod(node, createVisibility, constructor));
-}
-}
-private CodeExecutableElement createCreateMethod(NodeData node, Modifier visibility, ExecutableElement constructor) {
-CodeExecutableElement method = CodeExecutableElement.clone(getContext().getEnvironment(), constructor);
-method.setSimpleName(CodeNames.of("create"));
-method.getModifiers().clear();
-if (visibility != null) {
-method.getModifiers().add(visibility);
-}
-method.getModifiers().add(Modifier.STATIC);
-method.setReturnType(node.getNodeType());
-CodeTreeBuilder body = method.createBuilder();
-body.startReturn();
-if (node.getSpecializations().isEmpty()) {
-body.nullLiteral();
-} else {
-body.startCall(nodeSpecializationClassName(node.getSpecializations().get(0)), FACTORY_METHOD_NAME);
-for (VariableElement var : method.getParameters()) {
-body.string(var.getSimpleName().toString());
-}
-body.end();
-}
-body.end();
-return method;
-}
-}
-private class NodeBaseFactory extends AbstractClassElementFactory<SpecializationData> {
-@Override
-protected CodeTypeElement create(SpecializationData specialization) {
-NodeData node = specialization.getNode();
-CodeTypeElement clazz = createClass(node, modifiers(PRIVATE, ABSTRACT, STATIC), baseClassName(node), node.getNodeType(), false);
-clazz.getImplements().add(context.getTruffleTypes().getDslNode());
-for (NodeChildData child : node.getChildren()) {
-clazz.add(createChildField(child));
-if (child.getAccessElement() != null && child.getAccessElement().getModifiers().contains(Modifier.ABSTRACT)) {
-ExecutableElement getter = (ExecutableElement) child.getAccessElement();
-CodeExecutableElement method = CodeExecutableElement.clone(getContext().getEnvironment(), getter);
-method.getModifiers().remove(Modifier.ABSTRACT);
-CodeTreeBuilder builder = method.createBuilder();
-builder.startReturn().string("this.").string(child.getName()).end();
-clazz.add(method);
-}
-}
-for (NodeFieldData field : node.getFields()) {
-if (!field.isGenerated()) {
-continue;
-}
-clazz.add(new CodeVariableElement(modifiers(PROTECTED, FINAL), field.getType(), field.getName()));
-if (field.getGetter() != null && field.getGetter().getModifiers().contains(Modifier.ABSTRACT)) {
-CodeExecutableElement method = CodeExecutableElement.clone(getContext().getEnvironment(), field.getGetter());
-method.getModifiers().remove(Modifier.ABSTRACT);
-method.createBuilder().startReturn().string("this.").string(field.getName()).end();
-clazz.add(method);
-}
-}
-for (String assumption : node.getAssumptions()) {
-clazz.add(createAssumptionField(assumption));
-}
-createConstructors(node, clazz);
-return clazz;
-}
-@Override
-protected void createChildren(SpecializationData specialization) {
-NodeData node = specialization.getNode();
-CodeTypeElement clazz = getElement();
-SpecializationGroup rootGroup = createSpecializationGroups(node);
-if (node.needsRewrites(context)) {
-if (node.isPolymorphic(context)) {
-CodeVariableElement var = new CodeVariableElement(modifiers(PROTECTED), clazz.asType(), "next0");
-var.getAnnotationMirrors().add(new CodeAnnotationMirror(getContext().getTruffleTypes().getChildAnnotation()));
-clazz.add(var);
-CodeExecutableElement genericCachedExecute = createCachedExecute(node, node.getPolymorphicSpecialization());
-clazz.add(genericCachedExecute);
-}
-for (CodeExecutableElement method : createImplicitChildrenAccessors()) {
-clazz.add(method);
-}
-clazz.add(createInfoMessage(node));
-clazz.add(createMonomorphicRewrite());
-clazz.add(createCreateSpecializationMethod(node, rootGroup));
-}
-clazz.add(createAdoptChildren0());
-clazz.add(createGetMetadata0(true));
-clazz.add(createUpdateTypes0());
-clazz.add(createGetNext());
-}
-private Element createGetNext() {
-CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC, FINAL), context.getType(Node.class), "getNext0");
-CodeTreeBuilder builder = method.createBuilder();
-NodeData node = getModel().getNode();
-if (node.isPolymorphic(context)) {
-builder.startReturn().string("next0").end();
-} else {
-builder.returnNull();
-}
-return method;
-}
-protected final CodeExecutableElement createUpdateTypes0() {
-ArrayType classArray = new ArrayCodeTypeMirror(context.getType(Class.class));
-CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), context.getType(void.class), "updateTypes0");
-method.getParameters().add(new CodeVariableElement(classArray, "types"));
-if (getModel().isPolymorphic()) {
-CodeTreeBuilder builder = method.createBuilder();
-int index = 0;
-for (NodeExecutionData execution : getModel().getNode().getChildExecutions()) {
-String fieldName = polymorphicTypeName(execution);
-builder.startStatement();
-builder.string(fieldName).string(" = ").string("types[").string(String.valueOf(index)).string("]");
-builder.end();
-index++;
-}
-}
-return method;
-}
-protected final CodeExecutableElement createGetMetadata0(boolean empty) {
-CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), context.getTruffleTypes().getDslMetadata(), "getMetadata0");
-if (empty) {
-method.createBuilder().startReturn().staticReference(context.getTruffleTypes().getDslMetadata(), "NONE").end();
-} else {
-method.createBuilder().startReturn().string(METADATA_FIELD_NAME).end();
-}
-return method;
-}
-private CodeExecutableElement createAdoptChildren0() {
-CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC, FINAL), context.getType(void.class), "adoptChildren0");
-method.getParameters().add(new CodeVariableElement(context.getTruffleTypes().getNode(), "other"));
-method.getParameters().add(new CodeVariableElement(context.getTruffleTypes().getNode(), "newNext"));
-NodeData node = getModel().getNode();
-CodeTreeBuilder builder = method.createBuilder();
-List<NodeExecutionData> executions = node.getChildExecutions();
-if (executions.size() > 0) {
-builder.startIf().string("other == null").end().startBlock();
-for (NodeExecutionData execution : executions) {
-builder.startStatement().tree(createAccessChild(execution, "this")).string(" = null").end();
-}
-builder.end().startElseBlock();
-String access;
-if (executions.size() > 1) {
-builder.declaration(baseClassName(node), "otherCast", builder.create().cast(baseClassName(node)).string("other"));
-access = "otherCast";
-} else {
-assert executions.size() == 1;
-access = "((" + baseClassName(node) + ") other)";
-}
-for (NodeExecutionData execution : executions) {
-builder.startStatement().tree(createAccessChild(execution, "this")).string(" = ").tree(createAccessChild(execution, access)).end();
-}
-builder.end();
-}
-if (getModel().getNode().isPolymorphic(context)) {
-builder.startIf().string("newNext == null").end().startBlock();
-builder.statement("this.next0 = null");
-builder.end().startElseBlock();
-builder.statement("this.next0 = (" + baseClassName(getModel().getNode()) + ") newNext");
-builder.end();
-}
-return method;
-}
-private List<CodeExecutableElement> createImplicitChildrenAccessors() {
-NodeData node = getModel().getNode();
-List<Set<TypeData>> prototype = Collections.nCopies(node.getGenericSpecialization().getParameters().size(), null);
-List<Set<TypeData>> expectTypes = new ArrayList<>(prototype);
-for (ExecutableTypeData executableType : node.getExecutableTypes()) {
-for (int i = 0; i < executableType.getEvaluatedCount(); i++) {
-Parameter parameter = executableType.getSignatureParameter(i);
-if (i >= expectTypes.size()) {
-break;
-}
-Set<TypeData> types = expectTypes.get(i);
-if (types == null) {
-types = new TreeSet<>();
-expectTypes.set(i, types);
-}
-types.add(parameter.getTypeSystemType());
-}
-}
-List<CodeExecutableElement> methods = new ArrayList<>();
-List<Set<TypeData>> visitedList = new ArrayList<>(prototype);
-for (SpecializationData spec : node.getSpecializations()) {
-int signatureIndex = -1;
-for (Parameter param : spec.getParameters()) {
-if (!param.getSpecification().isSignature()) {
-continue;
-}
-signatureIndex++;
-Set<TypeData> visitedTypeData = visitedList.get(signatureIndex);
-if (visitedTypeData == null) {
-visitedTypeData = new TreeSet<>();
-visitedList.set(signatureIndex, visitedTypeData);
-}
-if (visitedTypeData.contains(param.getTypeSystemType())) {
-continue;
-}
-visitedTypeData.add(param.getTypeSystemType());
-Set<TypeData> expect = expectTypes.get(signatureIndex);
-if (expect == null) {
-expect = Collections.emptySet();
-}
-methods.addAll(createExecuteChilds(param, expect));
-}
-}
-return methods;
-}
-private CodeTree truffleBooleanOption(CodeTreeBuilder parent, String name) {
-CodeTreeBuilder builder = parent.create();
-builder.staticReference(getContext().getTruffleTypes().getTruffleOptions(), name);
-return builder.getRoot();
-}
-private Element createInfoMessage(NodeData node) {
-CodeExecutableElement method = new CodeExecutableElement(modifiers(PROTECTED, STATIC), getContext().getType(String.class), CREATE_INFO);
-method.addParameter(new CodeVariableElement(getContext().getType(String.class), "message"));
-addInternalValueParameters(method, node.getGenericSpecialization(), false, false, false);
-CodeTreeBuilder builder = method.createBuilder();
-builder.startIf().tree(truffleBooleanOption(builder, TruffleTypes.OPTION_DETAILED_REWRITE_REASONS)).end();
-builder.startBlock();
-builder.startStatement().string("StringBuilder builder = new StringBuilder(message)").end();
-builder.startStatement().startCall("builder", "append").doubleQuote(" (").end().end();
-String sep = null;
-for (Parameter parameter : node.getGenericSpecialization().getSignatureParameters()) {
-builder.startStatement();
-builder.string("builder");
-if (sep != null) {
-builder.startCall(".append").doubleQuote(sep).end();
-}
-builder.startCall(".append").doubleQuote(parameter.getLocalName()).end();
-builder.startCall(".append").doubleQuote(" = ").end();
-builder.startCall(".append").string(parameter.getLocalName()).end();
-builder.end();
-if (!ElementUtils.isPrimitive(parameter.getType())) {
-builder.startIf().string(parameter.getLocalName() + " != null").end();
-builder.startBlock();
-}
-builder.startStatement();
-if (ElementUtils.isPrimitive(parameter.getType())) {
-builder.startCall("builder.append").doubleQuote(" (" + ElementUtils.getSimpleName(parameter.getType()) + ")").end();
-} else {
-builder.startCall("builder.append").doubleQuote(" (").end();
-builder.startCall(".append").string(parameter.getLocalName() + ".getClass().getSimpleName()").end();
-builder.startCall(".append").doubleQuote(")").end();
-}
-builder.end();
-if (!ElementUtils.isPrimitive(parameter.getType())) {
-builder.end();
-}
-sep = ", ";
-}
-builder.startStatement().startCall("builder", "append").doubleQuote(")").end().end();
-builder.startReturn().string("builder.toString()").end();
-builder.end();
-builder.startElseBlock();
-builder.startReturn().string("message").end();
-builder.end();
-return method;
-}
-private CodeExecutableElement createCachedExecute(NodeData node, SpecializationData polymorph) {
-CodeExecutableElement cachedExecute = new CodeExecutableElement(modifiers(PROTECTED, ABSTRACT), polymorph.getReturnType().getType(), EXECUTE_CHAINED);
-addInternalValueParameters(cachedExecute, polymorph, true, false, false);
-ExecutableTypeData sourceExecutableType = node.findExecutableType(polymorph.getReturnType().getTypeSystemType(), 0);
-boolean sourceThrowsUnexpected = sourceExecutableType != null && sourceExecutableType.hasUnexpectedValue(getContext());
-if (sourceThrowsUnexpected && sourceExecutableType.getType().equals(node.getGenericSpecialization().getReturnType().getTypeSystemType())) {
-sourceThrowsUnexpected = false;
-}
-if (sourceThrowsUnexpected) {
-cachedExecute.getThrownTypes().add(getContext().getType(UnexpectedResultException.class));
-}
-return cachedExecute;
-}
-private void createConstructors(NodeData node, CodeTypeElement clazz) {
-List<ExecutableElement> constructors = findUserConstructors(node.getNodeType());
-ExecutableElement sourceSectionConstructor = null;
-if (constructors.isEmpty()) {
-clazz.add(createUserConstructor(clazz, null));
-} else {
-for (ExecutableElement constructor : constructors) {
-clazz.add(createUserConstructor(clazz, constructor));
-if (NodeParser.isSourceSectionConstructor(context, constructor)) {
-sourceSectionConstructor = constructor;
-}
-}
-}
-if (node.needsRewrites(getContext())) {
-ExecutableElement copyConstructor = findCopyConstructor(node.getNodeType());
-clazz.add(createCopyConstructor(clazz, copyConstructor, sourceSectionConstructor));
-}
-}
-private CodeExecutableElement createUserConstructor(CodeTypeElement type, ExecutableElement superConstructor) {
-CodeExecutableElement method = new CodeExecutableElement(null, type.getSimpleName().toString());
-CodeTreeBuilder builder = method.createBuilder();
-NodeData node = getModel().getNode();
-if (superConstructor != null) {
-for (VariableElement param : superConstructor.getParameters()) {
-method.getParameters().add(CodeVariableElement.clone(param));
-}
-}
-if (superConstructor != null) {
-builder.startStatement().startSuperCall();
-for (VariableElement param : superConstructor.getParameters()) {
-builder.string(param.getSimpleName().toString());
-}
-builder.end().end();
-}
-for (VariableElement var : type.getFields()) {
-if (var.getModifiers().contains(STATIC)) {
-continue;
-}
-NodeChildData child = node.findChild(var.getSimpleName().toString());
-if (child != null) {
-method.getParameters().add(new CodeVariableElement(child.getOriginalType(), child.getName()));
-} else {
-method.getParameters().add(new CodeVariableElement(var.asType(), var.getSimpleName().toString()));
-}
-builder.startStatement();
-String fieldName = var.getSimpleName().toString();
-CodeTree init = createStaticCast(builder, child, fieldName);
-builder.string("this.").string(fieldName).string(" = ").tree(init);
-builder.end();
-}
-return method;
-}
-private CodeTree createStaticCast(CodeTreeBuilder parent, NodeChildData child, String fieldName) {
-NodeData parentNode = getModel().getNode();
-if (child != null) {
-CreateCastData createCast = parentNode.findCast(child.getName());
-if (createCast != null) {
-return createTemplateMethodCall(parent, null, parentNode.getGenericSpecialization(), createCast, null, fieldName);
-}
-}
-return CodeTreeBuilder.singleString(fieldName);
-}
-private CodeExecutableElement createCopyConstructor(CodeTypeElement type, ExecutableElement superConstructor, ExecutableElement sourceSectionConstructor) {
-CodeExecutableElement method = new CodeExecutableElement(null, type.getSimpleName().toString());
-CodeTreeBuilder builder = method.createBuilder();
-method.getParameters().add(new CodeVariableElement(type.asType(), "copy"));
-if (superConstructor != null) {
-builder.startStatement().startSuperCall().string("copy").end().end();
-} else if (sourceSectionConstructor != null) {
-builder.startStatement().startSuperCall().string("copy.getSourceSection()").end().end();
-}
-for (VariableElement var : type.getFields()) {
-if (var.getModifiers().contains(STATIC) || !var.getModifiers().contains(FINAL)) {
-continue;
-}
-final String varName = var.getSimpleName().toString();
-final TypeMirror varType = var.asType();
-if (ElementUtils.isAssignable(varType, getContext().getTruffleTypes().getNodeArray())) {
-CodeTree size = builder.create().string("copy.", varName, ".length").getRoot();
-builder.startStatement().string("this.").string(varName).string(" = ").startNewArray((ArrayType) varType, size).end().end();
-} else {
-builder.startStatement().string("this.", varName, " = copy.", varName).end();
-}
-}
-return method;
-}
-private CodeVariableElement createAssumptionField(String assumption) {
-CodeVariableElement var = new CodeVariableElement(getContext().getTruffleTypes().getAssumption(), assumption);
-var.getModifiers().add(Modifier.FINAL);
-return var;
-}
-private CodeVariableElement createChildField(NodeChildData child) {
-TypeMirror type = child.getNodeType();
-CodeVariableElement var = new CodeVariableElement(type, child.getName());
-var.getModifiers().add(Modifier.PROTECTED);
-DeclaredType annotationType;
-if (child.getCardinality() == Cardinality.MANY) {
-var.getModifiers().add(Modifier.FINAL);
-annotationType = getContext().getTruffleTypes().getChildrenAnnotation();
-} else {
-annotationType = getContext().getTruffleTypes().getChildAnnotation();
-}
-var.getAnnotationMirrors().add(new CodeAnnotationMirror(annotationType));
-return var;
-}
-private SpecializationGroup createSpecializationGroups(final NodeData node) {
-List<SpecializationData> specializations = node.getSpecializations();
-List<SpecializationData> filteredSpecializations = new ArrayList<>();
-for (SpecializationData current : specializations) {
-if (current.isUninitialized() || current.isPolymorphic() || !current.isReachable()) {
-continue;
-}
-filteredSpecializations.add(current);
-}
-return SpecializationGroup.create(filteredSpecializations);
-}
-protected final CodeExecutableElement createExecuteUninitialized() {
-NodeData node = getModel().getNode();
-SpecializationData generic = node.getGenericSpecialization();
-CodeExecutableElement method = new CodeExecutableElement(modifiers(PROTECTED), generic.getReturnType().getType(), EXECUTE_UNINITIALIZED);
-addInternalValueParameters(method, generic, true, false, false);
-CodeTreeBuilder builder = method.createBuilder();
-boolean needsFrame = node.isFrameUsedByAnyGuard(getContext());
-CodeTreeBuilder createSpecializationCall = builder.create();
-createSpecializationCall.startCall(SPECIALIZE);
-addInternalValueParameterNames(createSpecializationCall, generic, generic, null, needsFrame, !needsFrame, null);
-createSpecializationCall.end();
-builder.declaration(baseClassName(node), "newNode", createSpecializationCall);
-if (generic.isReachable()) {
-builder.startIf().string("newNode == null").end().startBlock();
-builder.startIf().startStaticCall(context.getTruffleTypes().getCompilerDirectives(), "inInterpreter").end().end().startBlock();
-builder.statement("containsFallback = true");
-builder.end();
-builder.tree(createGenericInvoke(builder, generic, generic));
-builder.end();
-builder.startElseBlock();
-builder.tree(createDeoptimize(builder));
-builder.end();
-}
-builder.startReturn();
-builder.startStaticCall(context.getTruffleTypes().getDslShare(), "rewriteUninitialized").string("this").string("newNode").end();
-builder.string(".").startCall(EXECUTE_CHAINED);
-addInternalValueParameterNames(builder, generic, generic, null, true, false, null);
-builder.end();
-builder.end();
-if (generic.isReachable()) {
-builder.end();
-}
-return method;
-}
-private CodeTree createInfoCall(CodeTreeBuilder parent, SpecializationData specialization, String reason) {
-CodeTreeBuilder builder = parent.create();
-builder.startCall(CREATE_INFO).string(reason);
-addInternalValueParameterNames(builder, specialization, specialization, null, false, false, null);
-builder.end();
-return builder.getRoot();
-}
-private CodeExecutableElement createMonomorphicRewrite() {
-NodeData node = getModel().getNode();
-SpecializationData generic = node.getGenericSpecialization();
-CodeExecutableElement method = new CodeExecutableElement(modifiers(PROTECTED, FINAL), generic.getReturnType().getType(), REWRITE);
-addInternalValueParameters(method, generic, true, false, false);
-method.addParameter(new CodeVariableElement(getContext().getType(String.class), "reason"));
-boolean needsFrame = node.isFrameUsedByAnyGuard(getContext());
-CodeTreeBuilder builder = method.createBuilder();
-builder.startStatement().startStaticCall(context.getTruffleTypes().getCompilerAsserts(), "neverPartOfCompilation").end().end();
-String baseClassName = baseClassName(getModel().getNode());
-CodeTreeBuilder createSpecializationCall = builder.create();
-createSpecializationCall.startCall(SPECIALIZE);
-addInternalValueParameterNames(createSpecializationCall, generic, generic, null, needsFrame, !needsFrame, null);
-createSpecializationCall.end();
-builder.declaration(baseClassName, "newNode", createSpecializationCall);
-builder.startIf().string("newNode == null").end().startBlock();
-builder.startStatement();
-String uninitializedName = nodeSpecializationClassName(node.getUninitializedSpecialization());
-builder.string("newNode = ").startNew(uninitializedName).string("this").end();
-builder.end();
-if (node.isFallbackReachable()) {
-builder.startStatement().string("((", uninitializedName, ") newNode).containsFallback = true").end();
-}
-builder.end();
-builder.startStatement();
-builder.type(getContext().getType(String.class)).string(" message = ").tree(createInfoCall(builder, generic, "reason"));
-builder.end();
-builder.declaration(baseClassName, "returnNode",
-builder.create().startStaticCall(context.getTruffleTypes().getDslShare(), DSLSHARE_REWRITE).string("this").string("newNode").string("message").end().getRoot());
-builder.startIf().string("returnNode == null").end().startBlock();
-builder.tree(createRewritePolymorphic(builder, node, "this"));
-builder.end();
-builder.startReturn();
-builder.startCall("returnNode", EXECUTE_CHAINED);
-addInternalValueParameterNames(builder, node.getGenericSpecialization(), node.getGenericSpecialization(), null, true, false, null);
-builder.end();
-builder.end();
-return method;
-}
-private CodeTree createRewritePolymorphic(CodeTreeBuilder parent, NodeData node, String currentNode) {
-String polyClassName = nodePolymorphicClassName(node);
-CodeTreeBuilder builder = parent.create();
-builder.startStatement().string("returnNode = ");
-builder.startStaticCall(context.getTruffleTypes().getDslShare(), DSLSHARE_REWRITE_TO_POLYMORHPIC);
-builder.string("this");
-builder.tree(builder.create().startNew(nodeSpecializationClassName(node.getUninitializedSpecialization())).string(currentNode).end().getRoot());
-builder.tree(builder.create().startNew(polyClassName).string(currentNode).end().getRoot());
-builder.startGroup().cast(baseClassName(node)).startCall("copy").end().end();
-builder.string("newNode");
-builder.string("message");
-builder.end();
-builder.end();
-return builder.getRoot();
-}
-private CodeExecutableElement createCreateSpecializationMethod(NodeData node, SpecializationGroup group) {
-CodeExecutableElement method = new CodeExecutableElement(modifiers(PROTECTED, FINAL), new GeneratedTypeMirror(ElementUtils.getPackageName(node.getTemplateType()), baseClassName(node)),
-SPECIALIZE);
-final boolean needsFrame = node.isFrameUsedByAnyGuard(getContext());
-if (!needsFrame) {
-method.getAnnotationMirrors().add(new CodeAnnotationMirror(getContext().getTruffleTypes().getTruffleBoundary()));
-}
-addInternalValueParameters(method, node.getGenericSpecialization(), needsFrame, !needsFrame, false);
-final CodeTreeBuilder builder = method.createBuilder();
-builder.tree(createExecuteTree(builder, node.getGenericSpecialization(), group, new CodeBlock<SpecializationData>() {
-public CodeTree create(CodeTreeBuilder b, SpecializationData current) {
-return createCreateSpecializationMethodBody0(builder, current, needsFrame);
-}
-}, null, false, true, false, true));
-emitUnreachableSpecializations(builder, node);
-return method;
-}
-protected CodeTree createCreateSpecializationMethodBody0(CodeTreeBuilder parent, SpecializationData current, boolean useDeoptimize) {
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-if (current.isGeneric()) {
-builder.startReturn().nullLiteral().end();
-} else {
-String className = nodeSpecializationClassName(current);
-if (!current.getExcludedBy().isEmpty()) {
-builder.startIf().string("!").startStaticCall(context.getTruffleTypes().getDslShare(), "isExcluded");
-builder.string("this").string(nodeSpecializationClassName(current), ".", METADATA_FIELD_NAME).end().end();
-builder.startBlock();
-}
-if (current.getNode().getGenericSpecialization().isReachable() && useDeoptimize) {
-builder.tree(createDeoptimize(builder));
-}
-builder.startReturn();
-builder.cast(baseClassName(getModel().getNode()));
-builder.startGroup().startCall(className, FACTORY_METHOD_NAME).string("this");
-for (Parameter param : current.getSignatureParameters()) {
-NodeChildData child = param.getSpecification().getExecution().getChild();
-List<TypeData> types = child.getNodeData().getTypeSystem().lookupSourceTypes(param.getTypeSystemType());
-if (types.size() > 1) {
-builder.string(implicitTypeName(param));
-}
-}
-builder.end().end();
-builder.end();
-if (!current.getExcludedBy().isEmpty()) {
-builder.end();
-}
-}
-return builder.getRoot();
-}
-private void emitUnreachableSpecializations(final CodeTreeBuilder builder, NodeData node) {
-for (SpecializationData current : node.getSpecializations()) {
-if (current.isReachable()) {
-continue;
-}
-builder.string("// unreachable ").string(current.getId()).newLine();
-}
-}
-protected CodeTree createExecuteTree(CodeTreeBuilder outerParent, final SpecializationData source, final SpecializationGroup group, final CodeBlock<SpecializationData> guardedblock,
-final CodeTree elseBlock, boolean forceElse, final boolean emitAssumptions, final boolean typedCasts, final boolean castForGuardsOnly) {
-return guard(outerParent, source, group, new CodeBlock<Integer>() {
-public CodeTree create(CodeTreeBuilder parent, Integer ifCount) {
-CodeTreeBuilder builder = parent.create();
-if (group.getSpecialization() != null) {
-builder.tree(guardedblock.create(builder, group.getSpecialization()));
-assert group.getChildren().isEmpty() : "missed a specialization";
-} else {
-for (SpecializationGroup childGroup : group.getChildren()) {
-builder.tree(createExecuteTree(builder, source, childGroup, guardedblock, null, false, emitAssumptions, typedCasts, castForGuardsOnly));
-}
-}
-return builder.getRoot();
-}
-}, elseBlock, forceElse, emitAssumptions, typedCasts, castForGuardsOnly);
-}
-private CodeTree guard(CodeTreeBuilder parent, SpecializationData source, SpecializationGroup group, CodeBlock<Integer> bodyBlock, CodeTree elseBlock, boolean forceElse,
-boolean emitAssumptions, boolean typedCasts, boolean castForGuardsOnly) {
-CodeTreeBuilder builder = parent.create();
-int ifCount = emitGuards(builder, source, group, emitAssumptions, typedCasts, castForGuardsOnly);
-if (isReachableGroup(group, ifCount)) {
-builder.tree(bodyBlock.create(builder, ifCount));
-}
-builder.end(ifCount);
-if (elseBlock != null) {
-if (ifCount > 0 || forceElse) {
-builder.tree(elseBlock);
-}
-}
-return builder.getRoot();
-}
-private boolean isReachableGroup(SpecializationGroup group, int ifCount) {
-if (ifCount != 0) {
-return true;
-}
-SpecializationGroup previous = group.getPreviousGroup();
-if (previous == null || previous.findElseConnectableGuards().isEmpty()) {
-return true;
-}
-/*
-* Hacky else case. In this case the specialization is not reachable due to previous
-* else branch. This is only true if the minimum state is not checked.
-*/
-if (previous.getGuards().size() == 1 && previous.getTypeGuards().isEmpty() && previous.getAssumptions().isEmpty() &&
-(previous.getParent() == null || previous.getMaxSpecializationIndex() != previous.getParent().getMaxSpecializationIndex())) {
-return false;
-}
-return true;
-}
-private int emitGuards(CodeTreeBuilder builder, SpecializationData source, SpecializationGroup group, boolean emitAssumptions, boolean typedCasts, boolean castForGuardsOnly) {
-NodeData node = source.getNode();
-CodeTreeBuilder guardsBuilder = builder.create();
-CodeTreeBuilder castBuilder = builder.create();
-CodeTreeBuilder guardsCastBuilder = builder.create();
-String guardsAnd = "";
-String guardsCastAnd = "";
-if (emitAssumptions) {
-for (String assumption : group.getAssumptions()) {
-guardsBuilder.string(guardsAnd);
-guardsBuilder.string("this");
-guardsBuilder.string(".").string(assumption).string(".isValid()");
-guardsAnd = " && ";
-}
-}
-for (TypeGuard typeGuard : group.getTypeGuards()) {
-Parameter valueParam = source.getSignatureParameter(typeGuard.getSignatureIndex());
-if (valueParam == null) {
-/*
-* If used inside a execute evaluated method then the value param may not exist.
-* In that case we assume that the value is executed generic or of the current
-* specialization.
-*/
-if (group.getSpecialization() != null) {
-valueParam = group.getSpecialization().getSignatureParameter(typeGuard.getSignatureIndex());
-} else {
-valueParam = node.getGenericSpecialization().getSignatureParameter(typeGuard.getSignatureIndex());
-}
-}
-NodeExecutionData execution = valueParam.getSpecification().getExecution();
-CodeTree implicitGuard = createTypeGuard(guardsBuilder, execution, valueParam, typeGuard.getType(), typedCasts);
-if (implicitGuard != null) {
-guardsBuilder.string(guardsAnd);
-guardsBuilder.tree(implicitGuard);
-guardsAnd = " && ";
-}
-CodeTree implicitGetType = null;
-if (castForGuardsOnly) {
-implicitGetType = createGetImplicitType(builder, execution, valueParam, typeGuard.getType());
-}
-boolean performCast = true;
-if (castForGuardsOnly) {
-// if cast for guards we just cast if the type guard is used inside a guard.
-performCast = group.isTypeGuardUsedInAnyGuardBelow(context, source, typeGuard);
-}
-if (performCast) {
-CodeTree cast = createCast(castBuilder, execution, valueParam, typeGuard.getType(), typedCasts);
-if (cast != null) {
-castBuilder.tree(cast);
-}
-}
-if (implicitGetType != null) {
-castBuilder.tree(implicitGetType);
-}
-}
-List<GuardExpression> elseGuards = group.findElseConnectableGuards();
-for (GuardExpression guard : group.getGuards()) {
-if (elseGuards.contains(guard)) {
-continue;
-}
-if (needsTypeGuard(source, group, guard)) {
-guardsCastBuilder.tree(createMethodGuard(builder, guardsCastAnd, source, guard));
-guardsCastAnd = " && ";
-} else {
-guardsBuilder.tree(createMethodGuard(builder, guardsAnd, source, guard));
-guardsAnd = " && ";
-}
-}
-int ifCount = startGuardIf(builder, guardsBuilder, 0, elseGuards);
-builder.tree(castBuilder.getRoot());
-ifCount = startGuardIf(builder, guardsCastBuilder, ifCount, elseGuards);
-return ifCount;
-}
-private int startGuardIf(CodeTreeBuilder builder, CodeTreeBuilder conditionBuilder, int ifCount, List<GuardExpression> elseGuard) {
-int newIfCount = ifCount;
-if (!conditionBuilder.isEmpty()) {
-if (ifCount == 0 && !elseGuard.isEmpty()) {
-builder.startElseIf();
-} else {
-builder.startIf();
-}
-builder.tree(conditionBuilder.getRoot());
-builder.end().startBlock();
-newIfCount++;
-} else if (ifCount == 0 && !elseGuard.isEmpty()) {
-builder.startElseBlock();
-newIfCount++;
-}
-return newIfCount;
-}
-private boolean needsTypeGuard(SpecializationData source, SpecializationGroup group, GuardExpression guard) {
-for (Parameter parameter : guard.getResolvedGuard().getParameters()) {
-if (!parameter.getSpecification().isSignature()) {
-continue;
-}
-int signatureIndex = source.getNode().getChildExecutions().indexOf(parameter.getSpecification().getExecution());
-if (signatureIndex == -1) {
-continue;
-}
-TypeGuard typeGuard = group.findTypeGuard(signatureIndex);
-if (typeGuard != null) {
-TypeData requiredType = typeGuard.getType();
-Parameter sourceParameter = source.findParameter(parameter.getLocalName());
-if (sourceParameter == null) {
-sourceParameter = source.getNode().getGenericSpecialization().findParameter(parameter.getLocalName());
-}
-if (ElementUtils.needsCastTo(sourceParameter.getType(), requiredType.getPrimitiveType())) {
-return true;
-}
-}
-}
-return false;
-}
-private CodeTree createTypeGuard(CodeTreeBuilder parent, NodeExecutionData execution, Parameter source, TypeData targetType, boolean typedCasts) {
-NodeData node = execution.getChild().getNodeData();
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-TypeData sourceType = source.getTypeSystemType();
-if (!sourceType.needsCastTo(targetType)) {
-return null;
-}
-builder.startGroup();
-if (execution.isShortCircuit()) {
-Parameter shortCircuit = source.getPreviousParameter();
-assert shortCircuit != null;
-builder.string("(");
-builder.string("!").string(valueName(shortCircuit));
-builder.string(" || ");
-}
-String castMethodName;
-String castTypeName = null;
-List<TypeData> types = getModel().getNode().getTypeSystem().lookupSourceTypes(targetType);
-if (types.size() > 1) {
-castMethodName = TypeSystemCodeGenerator.isImplicitTypeMethodName(targetType);
-if (typedCasts) {
-castTypeName = implicitTypeName(source);
-}
-} else {
-castMethodName = TypeSystemCodeGenerator.isTypeMethodName(targetType);
-}
-startCallTypeSystemMethod(builder, node.getTypeSystem(), castMethodName);
-builder.string(valueName(source));
-if (castTypeName != null) {
-builder.string(castTypeName);
-}
-builder.end().end(); // call
-if (execution.isShortCircuit()) {
-builder.string(")");
-}
-builder.end(); // group
-return builder.getRoot();
-}
-// TODO merge redundancies with #createTypeGuard
-private CodeTree createCast(CodeTreeBuilder parent, NodeExecutionData execution, Parameter source, TypeData targetType, boolean typedCasts) {
-NodeData node = execution.getChild().getNodeData();
-TypeData sourceType = source.getTypeSystemType();
-if (!sourceType.needsCastTo(targetType)) {
-return null;
-}
-CodeTree condition = null;
-if (execution.isShortCircuit()) {
-Parameter shortCircuit = source.getPreviousParameter();
-assert shortCircuit != null;
-condition = CodeTreeBuilder.singleString(valueName(shortCircuit));
-}
-String castMethodName;
-String castTypeName = null;
-List<TypeData> types = getModel().getNode().getTypeSystem().lookupSourceTypes(targetType);
-if (types.size() > 1) {
-castMethodName = TypeSystemCodeGenerator.asImplicitTypeMethodName(targetType);
-if (typedCasts) {
-castTypeName = implicitTypeName(source);
-}
-} else {
-castMethodName = TypeSystemCodeGenerator.asTypeMethodName(targetType);
-}
-List<CodeTree> args = new ArrayList<>();
-args.add(CodeTreeBuilder.singleString(valueName(source)));
-if (castTypeName != null) {
-args.add(CodeTreeBuilder.singleString(castTypeName));
-}
-CodeTree cast = createCallTypeSystemMethod(parent, node, castMethodName, args.toArray(new CodeTree[0]));
-CodeTreeBuilder builder = parent.create();
-builder.tree(createLazyAssignment(parent, castValueName(source), targetType.getPrimitiveType(), condition, cast));
-return builder.getRoot();
-}
-private CodeTree createGetImplicitType(CodeTreeBuilder parent, NodeExecutionData execution, Parameter source, TypeData targetType) {
-CodeTree condition = null;
-if (execution.isShortCircuit()) {
-Parameter shortCircuit = source.getPreviousParameter();
-assert shortCircuit != null;
-condition = CodeTreeBuilder.singleString(valueName(shortCircuit));
-}
-CodeTreeBuilder builder = parent.create();
-List<TypeData> types = getModel().getNode().getTypeSystem().lookupSourceTypes(targetType);
-if (types.size() > 1) {
-CodeTree castType = createCallTypeSystemMethod(parent, execution.getChild().getNodeData(), TypeSystemCodeGenerator.getImplicitClass(targetType),
-CodeTreeBuilder.singleString(valueName(source)));
-builder.tree(createLazyAssignment(builder, implicitTypeName(source), getContext().getType(Class.class), condition, castType));
-}
-return builder.getRoot();
-}
-private CodeTree createMethodGuard(CodeTreeBuilder parent, String prefix, SpecializationData source, GuardExpression guard) {
-CodeTreeBuilder builder = parent.create();
-builder.string(prefix);
-if (guard.isNegated()) {
-builder.string("!");
-}
-builder.tree(createTemplateMethodCall(builder, null, source, guard.getResolvedGuard(), null));
-return builder.getRoot();
-}
-protected CodeTree createGenericInvoke(CodeTreeBuilder parent, SpecializationData source, SpecializationData current) {
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-if (current.getMethod() == null) {
-emitEncounteredSynthetic(builder, current);
-} else {
-builder.startReturn().tree(createTemplateMethodCall(builder, null, source, current, null)).end();
-}
-return encloseThrowsWithFallThrough(parent, current, builder.getRoot());
-}
-private CodeTree encloseThrowsWithFallThrough(CodeTreeBuilder parent, SpecializationData current, CodeTree tree) {
-if (current.getExceptions().isEmpty()) {
-return tree;
-}
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-builder.startTryBlock();
-builder.tree(tree);
-for (SpecializationThrowsData exception : current.getExceptions()) {
-builder.end().startCatchBlock(exception.getJavaClass(), "rewriteEx");
-builder.tree(createDeoptimize(builder));
-builder.tree(createCallRewriteMonomorphic(builder, false, current.getNode().getGenericSpecialization().getReturnType().getTypeSystemType(), current, null,
-"Thrown " + ElementUtils.getSimpleName(exception.getJavaClass())));
-}
-builder.end();
-return builder.getRoot();
-}
-protected CodeTree createCastingExecute(CodeTreeBuilder parent, SpecializationData specialization, ExecutableTypeData executable, ExecutableTypeData castExecutable) {
-TypeData type = executable.getType();
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-NodeData node = specialization.getNode();
-TypeData primaryType = castExecutable.getType();
-boolean needsTry = castExecutable.hasUnexpectedValue(getContext());
-boolean returnVoid = type.isVoid();
-List<Parameter> executeParameters = new ArrayList<>();
-for (Parameter sourceParameter : executable.getSignatureParameters()) {
-Parameter targetParameter = castExecutable.findParameter(sourceParameter.getLocalName());
-if (targetParameter != null) {
-executeParameters.add(targetParameter);
-}
-}
-// execute names are enforced no cast
-String[] executeParameterNames = new String[executeParameters.size()];
-for (int i = 0; i < executeParameterNames.length; i++) {
-executeParameterNames[i] = valueName(executeParameters.get(i));
-}
-builder.tree(createExecuteChildren(builder, executable, specialization, executeParameters, null));
-boolean hasUnexpected = executable.hasUnexpectedValue(getContext());
-CodeTree primaryExecuteCall = createTemplateMethodCall(builder, null, executable, castExecutable, null, executeParameterNames);
-if (needsTry) {
-if (!returnVoid) {
-builder.declaration(primaryType.getPrimitiveType(), "value");
-}
-builder.startTryBlock();
-if (returnVoid) {
-builder.statement(primaryExecuteCall);
-} else {
-builder.startStatement();
-builder.string("value = ");
-builder.tree(primaryExecuteCall);
-builder.end();
-}
-builder.end().startCatchBlock(getUnexpectedValueException(), "ex");
-if (returnVoid) {
-builder.string("// ignore").newLine();
-} else {
-builder.startReturn();
-builder.tree(createExpectExecutableType(node, specialization.getNode().getTypeSystem().getGenericTypeData(), hasUnexpected, executable.getType(),
-CodeTreeBuilder.singleString("ex.getResult()")));
-builder.end();
-}
-builder.end();
-if (!returnVoid) {
-builder.startReturn();
-builder.tree(createExpectExecutableType(node, castExecutable.getReturnType().getTypeSystemType(), hasUnexpected, executable.getType(), CodeTreeBuilder.singleString("value")));
-builder.end();
-}
-} else {
-if (returnVoid) {
-builder.statement(primaryExecuteCall);
-} else {
-builder.startReturn();
-builder.tree(createExpectExecutableType(node, castExecutable.getReturnType().getTypeSystemType(), hasUnexpected, executable.getType(), primaryExecuteCall));
-builder.end();
-}
-}
-return builder.getRoot();
-}
-protected CodeTree createExpectExecutableType(NodeData node, TypeData sourceType, boolean hasUnexpected, TypeData exepctedType, CodeTree value) {
-return createCastType(node.getTypeSystem(), sourceType, exepctedType, hasUnexpected, value);
-}
-protected CodeTree createExecuteChildren(CodeTreeBuilder parent, ExecutableTypeData sourceExecutable, SpecializationData specialization, List<Parameter> targetParameters,
-Parameter unexpectedParameter) {
-CodeTreeBuilder builder = parent.create();
-for (Parameter targetParameter : targetParameters) {
-if (!targetParameter.getSpecification().isSignature()) {
-continue;
-}
-NodeExecutionData execution = targetParameter.getSpecification().getExecution();
-CodeTree executionExpressions = createExecuteChild(builder, execution, sourceExecutable, targetParameter, unexpectedParameter);
-CodeTree unexpectedTree = createCatchUnexpectedTree(builder, executionExpressions, specialization, sourceExecutable, targetParameter, execution.isShortCircuit(), unexpectedParameter);
-CodeTree shortCircuitTree = createShortCircuitTree(builder, unexpectedTree, specialization, targetParameter, unexpectedParameter);
-if (shortCircuitTree == executionExpressions) {
-if (containsNewLine(executionExpressions)) {
-builder.declaration(targetParameter.getType(), valueName(targetParameter));
-builder.tree(shortCircuitTree);
-} else {
-builder.startStatement().type(targetParameter.getType()).string(" ").tree(shortCircuitTree).end();
-}
-} else {
-builder.tree(shortCircuitTree);
-}
-}
-return builder.getRoot();
-}
-private ExecutableTypeData resolveExecutableType(NodeExecutionData execution, TypeData type) {
-ExecutableTypeData targetExecutable = execution.getChild().findExecutableType(getContext(), type);
-if (targetExecutable == null) {
-targetExecutable = execution.getChild().findAnyGenericExecutableType(getContext());
-}
-return targetExecutable;
-}
-private CodeTree createExecuteChild(CodeTreeBuilder parent, NodeExecutionData execution, ExecutableTypeData sourceExecutable, Parameter targetParameter, Parameter unexpectedParameter) {
-SpecializationData specialization = getModel();
-if (specialization.isPolymorphic() && targetParameter.getTypeSystemType().isGeneric() && unexpectedParameter == null) {
-List<TypeData> possiblePolymorphicTypes = lookupPolymorphicTargetTypes(targetParameter);
-if (possiblePolymorphicTypes.size() > 1) {
-CodeTreeBuilder builder = parent.create();
-boolean elseIf = false;
-for (TypeData possiblePolymoprhicType : possiblePolymorphicTypes) {
-if (possiblePolymoprhicType.isGeneric()) {
-continue;
-}
-elseIf = builder.startIf(elseIf);
-Parameter sourceParameter = sourceExecutable.findParameter(targetParameter.getLocalName());
-TypeData sourceType = sourceParameter != null ? sourceParameter.getTypeSystemType() : null;
-builder.string(polymorphicTypeName(targetParameter.getSpecification().getExecution())).string(" == ").typeLiteral(possiblePolymoprhicType.getPrimitiveType());
-builder.end().startBlock();
-builder.startStatement();
-builder.tree(createExecuteChildExpression(parent, execution, sourceType, new Parameter(targetParameter, possiblePolymoprhicType), unexpectedParameter, null));
-builder.end();
-builder.end();
-}
-builder.startElseBlock();
-builder.startStatement().tree(createExecuteChildImplicit(parent, execution, sourceExecutable, targetParameter, unexpectedParameter)).end();
-builder.end();
-return builder.getRoot();
-}
-}
-return createExecuteChildImplicit(parent, execution, sourceExecutable, targetParameter, unexpectedParameter);
-}
-protected final List<Parameter> getImplicitTypeParameters(SpecializationData model) {
-List<Parameter> parameter = new ArrayList<>();
-for (Parameter param : model.getSignatureParameters()) {
-NodeChildData child = param.getSpecification().getExecution().getChild();
-List<TypeData> types = child.getNodeData().getTypeSystem().lookupSourceTypes(param.getTypeSystemType());
-if (types.size() > 1) {
-parameter.add(param);
-}
-}
-return parameter;
-}
-protected final List<TypeData> lookupPolymorphicTargetTypes(Parameter param) {
-SpecializationData specialization = getModel();
-Set<TypeData> possiblePolymorphicTypes = new HashSet<>();
-for (SpecializationData otherSpecialization : specialization.getNode().getSpecializations()) {
-if (!otherSpecialization.isSpecialized()) {
-continue;
-}
-Parameter otherParameter = otherSpecialization.findParameter(param.getLocalName());
-if (otherParameter != null) {
-possiblePolymorphicTypes.add(otherParameter.getTypeSystemType());
-}
-}
-List<TypeData> types = new ArrayList<>(possiblePolymorphicTypes);
-Collections.sort(types);
-return types;
-}
-private CodeTree createExecuteChildImplicit(CodeTreeBuilder parent, NodeExecutionData execution, ExecutableTypeData sourceExecutable, Parameter param, Parameter unexpectedParameter) {
-CodeTreeBuilder builder = parent.create();
-Parameter sourceParameter = sourceExecutable.findParameter(param.getLocalName());
-String childExecuteName = createExecuteChildMethodName(param, sourceParameter != null);
-if (childExecuteName != null) {
-builder.string(valueName(param));
-builder.string(" = ");
-builder.startCall(childExecuteName);
-for (Parameter parameters : sourceExecutable.getParameters()) {
-if (parameters.getSpecification().isSignature()) {
-continue;
-}
-builder.string(parameters.getLocalName());
-}
-if (sourceParameter != null) {
-builder.string(valueNameEvaluated(sourceParameter));
-}
-builder.string(implicitTypeName(param));
-builder.end();
-} else {
-List<TypeData> sourceTypes = execution.getChild().getNodeData().getTypeSystem().lookupSourceTypes(param.getTypeSystemType());
-TypeData expectType = sourceParameter != null ? sourceParameter.getTypeSystemType() : null;
-if (sourceTypes.size() > 1) {
-builder.tree(createExecuteChildImplicitExpressions(parent, param, expectType));
-} else {
-builder.tree(createExecuteChildExpression(parent, execution, expectType, param, unexpectedParameter, null));
-}
-}
-return builder.getRoot();
-}
-private String createExecuteChildMethodName(Parameter param, boolean expect) {
-NodeExecutionData execution = param.getSpecification().getExecution();
-NodeChildData child = execution.getChild();
-if (child.getExecuteWith().size() > 0) {
-return null;
-}
-List<TypeData> sourceTypes = child.getNodeData().getTypeSystem().lookupSourceTypes(param.getTypeSystemType());
-if (sourceTypes.size() <= 1) {
-return null;
-}
-String prefix = expect ? "expect" : "execute";
-String suffix = execution.getIndex() > -1 ? String.valueOf(execution.getIndex()) : "";
-return prefix + ElementUtils.firstLetterUpperCase(child.getName()) + ElementUtils.firstLetterUpperCase(ElementUtils.getTypeId(param.getType())) + suffix;
-}
-private List<CodeExecutableElement> createExecuteChilds(Parameter param, Set<TypeData> expectTypes) {
-CodeExecutableElement executeMethod = createExecuteChild(param, null);
-if (executeMethod == null) {
-return Collections.emptyList();
-}
-List<CodeExecutableElement> childs = new ArrayList<>();
-childs.add(executeMethod);
-for (TypeData expectType : expectTypes) {
-CodeExecutableElement method = createExecuteChild(param, expectType);
-if (method != null) {
-childs.add(method);
-}
-}
-return childs;
-}
-private CodeExecutableElement createExecuteChild(Parameter param, TypeData expectType) {
-String childExecuteName = createExecuteChildMethodName(param, expectType != null);
-if (childExecuteName == null) {
-return null;
-}
-CodeExecutableElement method = new CodeExecutableElement(modifiers(PROTECTED, expectType != null ? STATIC : FINAL), param.getType(), childExecuteName);
-method.getThrownTypes().add(getContext().getTruffleTypes().getUnexpectedValueException());
-method.addParameter(new CodeVariableElement(getContext().getTruffleTypes().getFrame(), "frameValue"));
-if (expectType != null) {
-method.addParameter(new CodeVariableElement(expectType.getPrimitiveType(), valueNameEvaluated(param)));
-}
-method.addParameter(new CodeVariableElement(getContext().getType(Class.class), implicitTypeName(param)));
-CodeTreeBuilder builder = method.createBuilder();
-builder.declaration(param.getType(), valueName(param));
-builder.tree(createExecuteChildImplicitExpressions(builder, param, expectType));
-builder.startReturn().string(valueName(param)).end();
-return method;
-}
-private CodeTree createExecuteChildImplicitExpressions(CodeTreeBuilder parent, Parameter targetParameter, TypeData expectType) {
-CodeTreeBuilder builder = parent.create();
-NodeData node = getModel().getNode();
-NodeExecutionData execution = targetParameter.getSpecification().getExecution();
-List<TypeData> sourceTypes = node.getTypeSystem().lookupSourceTypes(targetParameter.getTypeSystemType());
-boolean elseIf = false;
-int index = 0;
-for (TypeData sourceType : sourceTypes) {
-if (index < sourceTypes.size() - 1) {
-elseIf = builder.startIf(elseIf);
-builder.string(implicitTypeName(targetParameter)).string(" == ").typeLiteral(sourceType.getPrimitiveType());
-builder.end();
-builder.startBlock();
-} else {
-builder.startElseBlock();
-}
-ExecutableTypeData implictExecutableTypeData = execution.getChild().findExecutableType(getContext(), sourceType);
-if (implictExecutableTypeData == null) {
-/*
-* For children with executeWith.size() > 0 an executable type may not exist so
-* use the generic executable type which is guaranteed to exist. An expect call
-* is inserted automatically by #createExecuteExpression.
-*/
-implictExecutableTypeData = execution.getChild().getNodeData().findExecutableType(node.getTypeSystem().getGenericTypeData(), execution.getChild().getExecuteWith().size());
-}
-ImplicitCastData cast = execution.getChild().getNodeData().getTypeSystem().lookupCast(sourceType, targetParameter.getTypeSystemType());
-CodeTree execute = createExecuteChildExpression(builder, execution, expectType, targetParameter, null, cast);
-builder.statement(execute);
-builder.end();
-index++;
-}
-return builder.getRoot();
-}
-private CodeTree createExecuteChildExpression(CodeTreeBuilder parent, NodeExecutionData execution, TypeData sourceParameterType, Parameter targetParameter, Parameter unexpectedParameter,
-ImplicitCastData cast) {
-// assignments: targetType <- castTargetType <- castSourceType <- sourceType
-TypeData sourceType = sourceParameterType;
-TypeData targetType = targetParameter.getTypeSystemType();
-TypeData castSourceType = targetType;
-TypeData castTargetType = targetType;
-if (cast != null) {
-castSourceType = cast.getSourceType();
-castTargetType = cast.getTargetType();
-}
-CodeTree expression;
-if (sourceType == null) {
-ExecutableTypeData targetExecutable = resolveExecutableType(execution, castSourceType);
-expression = createExecuteChildExpression(parent, execution, targetExecutable, unexpectedParameter);
-sourceType = targetExecutable.getType();
-} else {
-expression = CodeTreeBuilder.singleString(valueNameEvaluated(targetParameter));
-}
-// target = expectTargetType(implicitCast(expectCastSourceType(source)))
-TypeSystemData typeSystem = execution.getChild().getNodeData().getTypeSystem();
-expression = createExpectType(typeSystem, sourceType, castSourceType, expression);
-expression = createImplicitCast(parent, typeSystem, cast, expression);
-expression = createExpectType(typeSystem, castTargetType, targetType, expression);
-CodeTreeBuilder builder = parent.create();
-builder.string(valueName(targetParameter));
-builder.string(" = ");
-builder.tree(expression);
-return builder.getRoot();
-}
-private CodeTree createImplicitCast(CodeTreeBuilder parent, TypeSystemData typeSystem, ImplicitCastData cast, CodeTree expression) {
-if (cast == null) {
-return expression;
-}
-CodeTreeBuilder builder = parent.create();
-startCallTypeSystemMethod(builder, typeSystem, cast.getMethodName());
-builder.tree(expression);
-builder.end().end();
-return builder.getRoot();
-}
-private boolean containsNewLine(CodeTree tree) {
-if (tree.getCodeKind() == CodeTreeKind.NEW_LINE) {
-return true;
-}
-List<CodeTree> enclosing = tree.getEnclosedElements();
-if (enclosing != null) {
-for (CodeTree codeTree : enclosing) {
-if (containsNewLine(codeTree)) {
-return true;
-}
-}
-}
-return false;
-}
-private boolean hasUnexpected(Parameter sourceParameter, Parameter targetParameter, Parameter unexpectedParameter) {
-NodeExecutionData execution = targetParameter.getSpecification().getExecution();
-if (getModel().isPolymorphic() && targetParameter.getTypeSystemType().isGeneric() && unexpectedParameter == null) {
-// check for other polymorphic types
-List<TypeData> polymorphicTargetTypes = lookupPolymorphicTargetTypes(targetParameter);
-if (polymorphicTargetTypes.size() > 1) {
-for (TypeData polymorphicTargetType : polymorphicTargetTypes) {
-if (hasUnexpectedType(execution, sourceParameter, polymorphicTargetType)) {
-return true;
-}
-}
-}
-}
-if (hasUnexpectedType(execution, sourceParameter, targetParameter.getTypeSystemType())) {
-return true;
-}
-return false;
-}
-private boolean hasUnexpectedType(NodeExecutionData execution, Parameter sourceParameter, TypeData targetType) {
-List<TypeData> implicitSourceTypes = getModel().getNode().getTypeSystem().lookupSourceTypes(targetType);
-for (TypeData implicitSourceType : implicitSourceTypes) {
-TypeData sourceType;
-ExecutableTypeData targetExecutable = resolveExecutableType(execution, implicitSourceType);
-if (sourceParameter != null) {
-sourceType = sourceParameter.getTypeSystemType();
-} else {
-if (targetExecutable.hasUnexpectedValue(getContext())) {
-return true;
-}
-sourceType = targetExecutable.getType();
-}
-ImplicitCastData cast = getModel().getNode().getTypeSystem().lookupCast(implicitSourceType, targetType);
-if (cast != null) {
-if (cast.getSourceType().needsCastTo(targetType)) {
-return true;
-}
-}
-if (sourceType.needsCastTo(targetType)) {
-return true;
-}
-}
-return false;
-}
-private CodeTree createCatchUnexpectedTree(CodeTreeBuilder parent, CodeTree body, SpecializationData specialization, ExecutableTypeData currentExecutable, Parameter param,
-boolean shortCircuit, Parameter unexpectedParameter) {
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-Parameter sourceParameter = currentExecutable.findParameter(param.getLocalName());
-boolean unexpected = hasUnexpected(sourceParameter, param, unexpectedParameter);
-if (!unexpected) {
-return body;
-}
-if (!shortCircuit) {
-builder.declaration(param.getType(), valueName(param));
-}
-builder.startTryBlock();
-if (containsNewLine(body)) {
-builder.tree(body);
-} else {
-builder.statement(body);
-}
-builder.end().startCatchBlock(getUnexpectedValueException(), "ex");
-SpecializationData generic = specialization.getNode().getGenericSpecialization();
-Parameter genericParameter = generic.findParameter(param.getLocalName());
-List<Parameter> genericParameters = generic.getParametersAfter(genericParameter);
-builder.tree(createExecuteChildren(parent, currentExecutable, generic, genericParameters, genericParameter));
-if (specialization.isPolymorphic()) {
-builder.tree(createReturnOptimizeTypes(builder, currentExecutable, specialization, param));
-} else {
-builder.tree(createCallRewriteMonomorphic(builder, currentExecutable.hasUnexpectedValue(context), currentExecutable.getType(), specialization, param,
-"Expected " + param.getLocalName() + " instanceof " + ElementUtils.getSimpleName(param.getType())));
-}
-builder.end(); // catch block
-return builder.getRoot();
-}
-private CodeTree createReturnOptimizeTypes(CodeTreeBuilder parent, ExecutableTypeData currentExecutable, SpecializationData specialization, Parameter param) {
-NodeData node = specialization.getNode();
-SpecializationData polymorphic = node.getPolymorphicSpecialization();
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-builder.startStatement().string(polymorphicTypeName(param.getSpecification().getExecution())).string(" = ").typeLiteral(getContext().getType(Object.class)).end();
-builder.startReturn();
-CodeTreeBuilder execute = new CodeTreeBuilder(builder);
-execute.startCall("next0", EXECUTE_CHAINED);
-addInternalValueParameterNames(execute, specialization, polymorphic, param.getLocalName(), true, false, null);
-execute.end();
-TypeData sourceType = polymorphic.getReturnType().getTypeSystemType();
-builder.tree(createExpectExecutableType(node, sourceType, currentExecutable.hasUnexpectedValue(context), currentExecutable.getType(), execute.getRoot()));
-builder.end();
-return builder.getRoot();
-}
-private CodeTree createExecuteChildExpression(CodeTreeBuilder parent, NodeExecutionData targetExecution, ExecutableTypeData targetExecutable, Parameter unexpectedParameter) {
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-if (targetExecution != null) {
-builder.tree(createAccessChild(targetExecution, null));
-builder.string(".");
-}
-builder.startCall(targetExecutable.getMethodName());
-// TODO this should be merged with #createTemplateMethodCall
-int index = 0;
-for (Parameter parameter : targetExecutable.getParameters()) {
-if (!parameter.getSpecification().isSignature()) {
-builder.string(parameter.getLocalName());
-} else {
-if (index < targetExecution.getChild().getExecuteWith().size()) {
-NodeChildData child = targetExecution.getChild().getExecuteWith().get(index);
-ParameterSpec spec = getModel().getSpecification().findParameterSpec(child.getName());
-List<Parameter> specializationParams = getModel().findParameters(spec);
-if (specializationParams.isEmpty()) {
-builder.defaultValue(parameter.getType());
-continue;
-}
-Parameter specializationParam = specializationParams.get(0);
-TypeData targetType = parameter.getTypeSystemType();
-TypeData sourceType = specializationParam.getTypeSystemType();
-String localName = specializationParam.getLocalName();
-if (unexpectedParameter != null && unexpectedParameter.getLocalName().equals(specializationParam.getLocalName())) {
-localName = "ex.getResult()";
-sourceType = getModel().getNode().getTypeSystem().getGenericTypeData();
-}
-CodeTree value = CodeTreeBuilder.singleString(localName);
-if (sourceType.needsCastTo(targetType)) {
-value = createCallTypeSystemMethod(builder, getModel().getNode(), TypeSystemCodeGenerator.asTypeMethodName(targetType), value);
-}
-builder.tree(value);
-} else {
-builder.defaultValue(parameter.getType());
-}
-index++;
-}
-}
-builder.end();
-return builder.getRoot();
-}
-private CodeTree createShortCircuitTree(CodeTreeBuilder parent, CodeTree body, SpecializationData specialization, Parameter parameter, Parameter exceptionParam) {
-NodeExecutionData execution = parameter.getSpecification().getExecution();
-if (execution == null || !execution.isShortCircuit()) {
-return body;
-}
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-Parameter shortCircuitParam = specialization.getPreviousParam(parameter);
-builder.tree(createShortCircuitValue(builder, specialization, execution, shortCircuitParam, exceptionParam));
-builder.declaration(parameter.getType(), valueName(parameter), CodeTreeBuilder.createBuilder().defaultValue(parameter.getType()));
-builder.startIf().string(shortCircuitParam.getLocalName()).end();
-builder.startBlock();
-if (containsNewLine(body)) {
-builder.tree(body);
-} else {
-builder.statement(body);
-}
-builder.end();
-return builder.getRoot();
-}
-private CodeTree createShortCircuitValue(CodeTreeBuilder parent, SpecializationData specialization, NodeExecutionData execution, Parameter shortCircuitParam, Parameter exceptionParam) {
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-int shortCircuitIndex = 0;
-for (NodeExecutionData otherExectuion : specialization.getNode().getChildExecutions()) {
-if (otherExectuion.isShortCircuit()) {
-if (otherExectuion == execution) {
-break;
-}
-shortCircuitIndex++;
-}
-}
-builder.startStatement().type(shortCircuitParam.getType()).string(" ").string(valueName(shortCircuitParam)).string(" = ");
-ShortCircuitData shortCircuitData = specialization.getShortCircuits().get(shortCircuitIndex);
-builder.tree(createTemplateMethodCall(builder, null, specialization, shortCircuitData, exceptionParam != null ? exceptionParam.getLocalName() : null));
-builder.end(); // statement
-return builder.getRoot();
-}
-protected CodeTree createCallRewriteMonomorphic(CodeTreeBuilder parent, boolean hasUnexpected, TypeData returnType, SpecializationData current, Parameter exceptionParam, String reason) {
-NodeData node = current.getNode();
-SpecializationData generic = node.getGenericSpecialization();
-CodeTreeBuilder specializeCall = new CodeTreeBuilder(parent);
-specializeCall.startCall(REWRITE);
-addInternalValueParameterNames(specializeCall, generic, node.getGenericSpecialization(), exceptionParam != null ? exceptionParam.getLocalName() : null, true, false, null);
-specializeCall.doubleQuote(reason);
-specializeCall.end().end();
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-builder.startReturn();
-builder.tree(createExpectExecutableType(node, generic.getReturnType().getTypeSystemType(), hasUnexpected, returnType, specializeCall.getRoot()));
-builder.end();
-return builder.getRoot();
-}
-}
-private class PolymorphicNodeFactory extends SpecializedNodeFactory {
-public PolymorphicNodeFactory(CodeTypeElement nodeGen) {
-super(nodeGen);
-}
-@Override
-public CodeTypeElement create(SpecializationData polymorph) {
-NodeData node = polymorph.getNode();
-TypeMirror baseType = node.getNodeType();
-if (nodeGen != null) {
-baseType = nodeGen.asType();
-}
-CodeTypeElement clazz = createClass(node, modifiers(PRIVATE, STATIC, FINAL), nodePolymorphicClassName(node), baseType, false);
-clazz.getAnnotationMirrors().add(createNodeInfo(node, NodeCost.POLYMORPHIC));
-for (Parameter polymorphParameter : polymorph.getSignatureParameters()) {
-if (!polymorphParameter.getTypeSystemType().isGeneric()) {
-continue;
-}
-Set<TypeData> types = new HashSet<>();
-for (SpecializationData specialization : node.getSpecializations()) {
-if (!specialization.isSpecialized()) {
-continue;
-}
-Parameter parameter = specialization.findParameter(polymorphParameter.getLocalName());
-assert parameter != null;
-types.add(parameter.getTypeSystemType());
-}
-}
-for (NodeExecutionData execution : getModel().getNode().getChildExecutions()) {
-String fieldName = polymorphicTypeName(execution);
-CodeVariableElement var = new CodeVariableElement(modifiers(PRIVATE), getContext().getType(Class.class), fieldName);
-var.getAnnotationMirrors().add(new CodeAnnotationMirror(getContext().getTruffleTypes().getCompilationFinal()));
-clazz.add(var);
-}
-return clazz;
-}
-@Override
-protected void createChildren(SpecializationData specialization) {
-CodeTypeElement clazz = getElement();
-createConstructors(clazz);
-createExecuteMethods(specialization);
-clazz.add(createUpdateTypes0());
-createCachedExecuteMethods(specialization);
-}
-}
-private class SpecializedNodeFactory extends NodeBaseFactory {
-protected final CodeTypeElement nodeGen;
-public SpecializedNodeFactory(CodeTypeElement nodeGen) {
-this.nodeGen = nodeGen;
-}
-@Override
-public CodeTypeElement create(SpecializationData specialization) {
-NodeData node = specialization.getNode();
-TypeMirror baseType = node.getNodeType();
-if (nodeGen != null) {
-baseType = nodeGen.asType();
-}
-CodeTypeElement clazz = createClass(node, modifiers(PRIVATE, STATIC, FINAL), nodeSpecializationClassName(specialization), baseType, false);
-if (specialization.isSpecialized() || specialization.isUninitialized()) {
-clazz.add(createGetMetadata0(false));
-clazz.add(createMetadataLiteral());
-}
-NodeCost cost;
-if (specialization.isGeneric()) {
-cost = NodeCost.MEGAMORPHIC;
-} else if (specialization.isUninitialized()) {
-cost = NodeCost.UNINITIALIZED;
-} else if (specialization.isPolymorphic()) {
-cost = NodeCost.POLYMORPHIC;
-} else if (specialization.isSpecialized()) {
-cost = NodeCost.MONOMORPHIC;
-} else {
-throw new AssertionError();
-}
-clazz.getAnnotationMirrors().add(createNodeInfo(node, cost));
-if (specialization.isUninitialized() && node.getGenericSpecialization().isReachable()) {
-clazz.add(createUninitializedGetCostOverride());
-}
-return clazz;
-}
-private Element createUninitializedGetCostOverride() {
-TypeMirror returnType = context.getTruffleTypes().getNodeCost();
-CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), returnType, "getCost");
-CodeTreeBuilder builder = method.createBuilder();
-builder.startIf().string(CONTAINS_FALLBACK).end().startBlock();
-builder.startReturn().staticReference(returnType, "MONOMORPHIC").end();
-builder.end();
-builder.startReturn().string("super.getCost()").end();
-return method;
-}
-private CodeVariableElement createMetadataLiteral() {
-CodeVariableElement includes = new CodeVariableElement(modifiers(PRIVATE, STATIC, FINAL), context.getTruffleTypes().getDslMetadata(), METADATA_FIELD_NAME);
-CodeTreeBuilder builder = includes.createInitBuilder();
-SpecializationData specialization = getModel();
-NodeData node = specialization.getNode();
-Set<SpecializationData> contains = specialization.getContains();
-if (specialization.isUninitialized()) {
-contains = new HashSet<>();
-SpecializationData polymorphic = node.getPolymorphicSpecialization();
-if (polymorphic != null) {
-contains.addAll(polymorphic.getContains());
-}
-SpecializationData generic = node.getGenericSpecialization();
-if (generic != null) {
-contains.addAll(generic.getContains());
-}
-}
-builder.startNew(context.getTruffleTypes().getDslMetadata());
-builder.startGroup().string(nodeSpecializationClassName(getModel()), ".class").end();
-builder.tree(createSpecializationListLiteral(builder, contains));
-builder.tree(createSpecializationListLiteral(builder, getModel().getExcludedBy()));
-builder.tree(createSpecializationTypeLiteral(builder, SpecializationData.getSignatureTypes(getModel())));
-builder.string("0").string("0");
-builder.end();
-return includes;
-}
-private CodeTree createSpecializationTypeLiteral(CodeTreeBuilder parent, List<TypeMirror> list) {
-ArrayType classArray = new ArrayCodeTypeMirror(context.getType(Class.class));
-CodeTreeBuilder builder = parent.create();
-if (list.isEmpty()) {
-builder.staticReference(context.getTruffleTypes().getDslMetadata(), EMPTY_CLASS_ARRAY);
-} else {
-builder.startNewArray(classArray, null);
-for (TypeMirror type : list) {
-builder.typeLiteral(type);
-}
-builder.end();
-}
-return builder.getRoot();
-}
-private CodeTree createSpecializationListLiteral(CodeTreeBuilder parent, Set<SpecializationData> list) {
-ArrayType classArray = new ArrayCodeTypeMirror(context.getType(Class.class));
-CodeTreeBuilder builder = parent.create();
-if (list.isEmpty()) {
-builder.staticReference(context.getTruffleTypes().getDslMetadata(), EMPTY_CLASS_ARRAY);
-} else {
-builder.startNewArray(classArray, null);
-for (SpecializationData specialization : list) {
-SpecializationData s = specialization;
-if (s.isGeneric() || s.isPolymorphic()) {
-s = getModel().getNode().getUninitializedSpecialization();
-}
-builder.startGroup().string(nodeSpecializationClassName(s)).string(".class").end();
-}
-builder.end();
-}
-return builder.getRoot();
-}
-protected CodeAnnotationMirror createNodeInfo(NodeData node, NodeCost cost) {
-String shortName = node.getShortName();
-CodeAnnotationMirror nodeInfoMirror = new CodeAnnotationMirror(getContext().getTruffleTypes().getNodeInfoAnnotation());
-if (shortName != null) {
-nodeInfoMirror.setElementValue(nodeInfoMirror.findExecutableElement("shortName"), new CodeAnnotationValue(shortName));
-}
-DeclaredType nodeinfoCost = getContext().getTruffleTypes().getNodeCost();
-VariableElement varKind = ElementUtils.findVariableElement(nodeinfoCost, cost.name());
-nodeInfoMirror.setElementValue(nodeInfoMirror.findExecutableElement("cost"), new CodeAnnotationValue(varKind));
-return nodeInfoMirror;
-}
-@Override
-protected void createChildren(SpecializationData specialization) {
-CodeTypeElement clazz = getElement();
-createConstructors(clazz);
-createExecuteMethods(specialization);
-createCachedExecuteMethods(specialization);
-if (specialization.isUninitialized()) {
-if (specialization.getNode().isFallbackReachable()) {
-CodeVariableElement var = new CodeVariableElement(modifiers(Modifier.PRIVATE), context.getType(boolean.class), CONTAINS_FALLBACK);
-var.addAnnotationMirror(new CodeAnnotationMirror(context.getTruffleTypes().getCompilationFinal()));
-clazz.add(var);
-}
-clazz.add(createExecuteUninitialized());
-}
-if (!specialization.isUninitialized() && specialization.getNode().needsRewrites(context)) {
-clazz.add(createCopyConstructorFactoryMethod(nodeGen.asType(), specialization));
-} else {
-for (ExecutableElement constructor : ElementFilter.constructorsIn(clazz.getEnclosedElements())) {
-if (constructor.getParameters().size() == 1 && ((CodeVariableElement) constructor.getParameters().get(0)).getType().equals(nodeGen.asType())) {
-// skip copy constructor - not used
-continue;
-}
-clazz.add(createConstructorFactoryMethod(specialization, constructor));
-}
-}
-}
-protected void createConstructors(CodeTypeElement clazz) {
-TypeElement superTypeElement = ElementUtils.fromTypeMirror(clazz.getSuperclass());
-SpecializationData specialization = getModel();
-NodeData node = specialization.getNode();
-for (ExecutableElement constructor : ElementFilter.constructorsIn(superTypeElement.getEnclosedElements())) {
-if (specialization.isUninitialized()) {
-// ignore copy constructors for uninitialized if not polymorphic
-if (isCopyConstructor(constructor) && !node.isPolymorphic(context)) {
-continue;
-}
-} else if (node.getUninitializedSpecialization() != null) {
-// ignore others than copy constructors for specialized nodes
-if (!isCopyConstructor(constructor)) {
-continue;
-}
-}
-CodeExecutableElement superConstructor = createSuperConstructor(clazz, constructor);
-if (superConstructor == null) {
-continue;
-}
-CodeTree body = superConstructor.getBodyTree();
-CodeTreeBuilder builder = superConstructor.createBuilder();
-builder.tree(body);
-if (superConstructor != null) {
-for (Parameter param : getImplicitTypeParameters(getModel())) {
-clazz.add(new CodeVariableElement(modifiers(PRIVATE, FINAL), getContext().getType(Class.class), implicitTypeName(param)));
-superConstructor.getParameters().add(new CodeVariableElement(getContext().getType(Class.class), implicitTypeName(param)));
-builder.startStatement();
-builder.string("this.").string(implicitTypeName(param)).string(" = ").string(implicitTypeName(param));
-builder.end();
-}
-clazz.add(superConstructor);
-}
-}
-}
-protected void createExecuteMethods(SpecializationData specialization) {
-NodeData node = specialization.getNode();
-CodeTypeElement clazz = getElement();
-List<ExecutableTypeData> primaryExecutes = null;
-int lastEvaluatedCount = -1;
-for (ExecutableTypeData execType : node.getExecutableTypes()) {
-if (execType.isFinal()) {
-continue;
-}
-if (execType.getEvaluatedCount() != lastEvaluatedCount) {
-lastEvaluatedCount = execType.getEvaluatedCount();
-primaryExecutes = findFunctionalExecutableType(specialization, lastEvaluatedCount);
-}
-CodeExecutableElement executeMethod = createExecutableTypeOverride(execType, true);
-clazz.add(executeMethod);
-CodeTreeBuilder builder = executeMethod.getBuilder();
-CodeTree result = createExecuteBody(builder, specialization, execType, primaryExecutes);
-if (result != null) {
-builder.tree(result);
-} else {
-clazz.remove(executeMethod);
-}
-}
-}
-protected void createCachedExecuteMethods(SpecializationData specialization) {
-NodeData node = specialization.getNode();
-if (!node.isPolymorphic(context)) {
-return;
-}
-CodeTypeElement clazz = getElement();
-final SpecializationData polymorphic = node.getPolymorphicSpecialization();
-ExecutableElement executeCached = nodeGen.getMethod(EXECUTE_CHAINED);
-CodeExecutableElement executeMethod = CodeExecutableElement.clone(getContext().getEnvironment(), executeCached);
-executeMethod.getModifiers().remove(Modifier.ABSTRACT);
-CodeTreeBuilder builder = executeMethod.createBuilder();
-if (specialization.isPolymorphic()) {
-builder.startReturn().startCall("this.next0", EXECUTE_CHAINED);
-addInternalValueParameterNames(builder, polymorphic, polymorphic, null, true, false, null);
-builder.end().end();
-} else if (specialization.isUninitialized()) {
-builder.tree(createDeoptimizeUninitialized(node, builder));
-builder.startReturn().startCall("this", EXECUTE_UNINITIALIZED);
-addInternalValueParameterNames(builder, polymorphic, polymorphic, null, true, false, null);
-builder.end().end();
-} else {
-CodeTreeBuilder elseBuilder = new CodeTreeBuilder(builder);
-elseBuilder.startReturn().startCall("this.next0", EXECUTE_CHAINED);
-addInternalValueParameterNames(elseBuilder, polymorphic, polymorphic, null, true, false, null);
-elseBuilder.end().end();
-builder.tree(createExecuteTree(builder, polymorphic, SpecializationGroup.create(specialization), new CodeBlock<SpecializationData>() {
-public CodeTree create(CodeTreeBuilder b, SpecializationData current) {
-return createGenericInvoke(b, polymorphic, current);
-}
-}, elseBuilder.getRoot(), false, true, true, false));
-}
-clazz.add(executeMethod);
-}
-private CodeTree createDeoptimizeUninitialized(NodeData node, CodeTreeBuilder parent) {
-CodeTreeBuilder builder = parent.create();
-if (node.getGenericSpecialization().isReachable()) {
-builder.startIf().string("!containsFallback").end().startBlock();
-builder.tree(createDeoptimize(builder));
-builder.end();
-} else {
-builder.tree(createDeoptimize(builder));
-}
-return builder.getRoot();
-}
-private CodeTree createExecuteBody(CodeTreeBuilder parent, SpecializationData specialization, ExecutableTypeData execType, List<ExecutableTypeData> primaryExecutes) {
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-if (primaryExecutes.contains(execType) || primaryExecutes.isEmpty()) {
-builder.tree(createFunctionalExecute(builder, specialization, execType));
-} else if (needsCastingExecuteMethod(execType)) {
-assert !primaryExecutes.isEmpty();
-builder.tree(createCastingExecute(builder, specialization, execType, primaryExecutes.get(0)));
-} else {
-return null;
-}
-return builder.getRoot();
-}
-private CodeExecutableElement createExecutableTypeOverride(ExecutableTypeData execType, boolean evaluated) {
-CodeExecutableElement method = CodeExecutableElement.clone(getContext().getEnvironment(), execType.getMethod());
-method.getAnnotationMirrors().clear();
-for (VariableElement variable : method.getParameters()) {
-variable.getAnnotationMirrors().clear();
-}
-CodeTreeBuilder builder = method.createBuilder();
-int i = 0;
-int signatureIndex = -1;
-for (VariableElement param : method.getParameters()) {
-CodeVariableElement var = CodeVariableElement.clone(param);
-Parameter actualParameter = i < execType.getParameters().size() ? execType.getParameters().get(i) : null;
-String name;
-if (actualParameter != null) {
-if (actualParameter.getSpecification().isSignature()) {
-signatureIndex++;
-}
-if (evaluated && actualParameter.getSpecification().isSignature()) {
-name = valueNameEvaluated(actualParameter);
-} else {
-name = valueName(actualParameter);
-}
-int varArgCount = getModel().getSignatureSize() - signatureIndex;
-if (evaluated && actualParameter.isTypeVarArgs()) {
-Parameter baseVarArgs = actualParameter;
-name = valueName(baseVarArgs) + "Args";
-builder.startAssert().string(name).string(" != null").end();
-builder.startAssert().string(name).string(".length == ").string(String.valueOf(varArgCount)).end();
-if (varArgCount > 0) {
-List<Parameter> varArgsParameter = execType.getParameters().subList(i, execType.getParameters().size());
-for (Parameter varArg : varArgsParameter) {
-if (varArgCount <= 0) {
-break;
-}
-TypeMirror type = baseVarArgs.getType();
-if (type.getKind() == TypeKind.ARRAY) {
-type = ((ArrayType) type).getComponentType();
-}
-builder.declaration(type, valueNameEvaluated(varArg), name + "[" + varArg.getTypeVarArgsIndex() + "]");
-varArgCount--;
-}
-}
-}
-} else {
-name = "arg" + i;
-}
-var.setName(name);
-method.getParameters().set(i, var);
-i++;
-}
-method.getAnnotationMirrors().clear();
-method.getModifiers().remove(Modifier.ABSTRACT);
-return method;
-}
-private boolean needsCastingExecuteMethod(ExecutableTypeData execType) {
-if (execType.isAbstract()) {
-return true;
-}
-if (execType.getType().isGeneric()) {
-return true;
-}
-return false;
-}
-private List<ExecutableTypeData> findFunctionalExecutableType(SpecializationData specialization, int evaluatedCount) {
-TypeData primaryType = specialization.getReturnType().getTypeSystemType();
-List<ExecutableTypeData> otherTypes = specialization.getNode().getExecutableTypes(evaluatedCount);
-List<ExecutableTypeData> filteredTypes = new ArrayList<>();
-for (ExecutableTypeData compareType : otherTypes) {
-if (ElementUtils.typeEquals(compareType.getType().getPrimitiveType(), primaryType.getPrimitiveType())) {
-filteredTypes.add(compareType);
-}
-}
-// no direct matches found use generic where the type is Object
-if (filteredTypes.isEmpty()) {
-for (ExecutableTypeData compareType : otherTypes) {
-if (compareType.getType().isGeneric() && !compareType.hasUnexpectedValue(getContext())) {
-filteredTypes.add(compareType);
-}
-}
-}
-if (filteredTypes.isEmpty()) {
-for (ExecutableTypeData compareType : otherTypes) {
-if (compareType.getType().isGeneric()) {
-filteredTypes.add(compareType);
-}
-}
-}
-return filteredTypes;
-}
-private CodeTree createFunctionalExecute(CodeTreeBuilder parent, final SpecializationData specialization, final ExecutableTypeData executable) {
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-if (specialization.isUninitialized()) {
-builder.tree(createDeoptimizeUninitialized(specialization.getNode(), builder));
-}
-builder.tree(createExecuteChildren(builder, executable, specialization, specialization.getParameters(), null));
-CodeTree returnSpecialized = null;
-if (specialization.findNextSpecialization() != null) {
-CodeTreeBuilder returnBuilder = new CodeTreeBuilder(builder);
-returnBuilder.tree(createDeoptimize(builder));
-returnBuilder.tree(createCallRewriteMonomorphic(builder, executable.hasUnexpectedValue(context), executable.getType(), specialization, null,
-"One of guards " + specialization.getGuards() + " failed"));
-returnSpecialized = returnBuilder.getRoot();
-}
-builder.tree(createExecuteTree(builder, specialization, SpecializationGroup.create(specialization), new CodeBlock<SpecializationData>() {
-public CodeTree create(CodeTreeBuilder b, SpecializationData current) {
-return createExecute(b, executable, specialization);
-}
-}, returnSpecialized, false, false, false, false));
-return builder.getRoot();
-}
-private CodeTree createExecute(CodeTreeBuilder parent, ExecutableTypeData executable, SpecializationData specialization) {
-NodeData node = specialization.getNode();
-CodeTreeBuilder builder = new CodeTreeBuilder(parent);
-if (!specialization.getExceptions().isEmpty() || !specialization.getAssumptions().isEmpty()) {
-builder.startTryBlock();
-}
-for (String assumption : specialization.getAssumptions()) {
-builder.startStatement();
-builder.string("this.").string(assumption).string(".check()");
-builder.end();
-}
-CodeTreeBuilder returnBuilder = new CodeTreeBuilder(parent);
-if (specialization.isPolymorphic()) {
-returnBuilder.startCall("next0", EXECUTE_CHAINED);
-addInternalValueParameterNames(returnBuilder, specialization, specialization, null, true, false, null);
-returnBuilder.end();
-} else if (specialization.isUninitialized()) {
-returnBuilder.startCall(EXECUTE_UNINITIALIZED);
-addInternalValueParameterNames(returnBuilder, specialization, specialization, null, true, false, null);
-returnBuilder.end();
-} else if (specialization.getMethod() == null && !node.needsRewrites(context)) {
-emitEncounteredSynthetic(builder, specialization);
-} else {
-returnBuilder.tree(createTemplateMethodCall(returnBuilder, null, specialization, specialization, null));
-}
-if (!returnBuilder.isEmpty()) {
-TypeData targetType = node.getTypeSystem().findTypeData(builder.findMethod().getReturnType());
-TypeData sourceType = specialization.getReturnType().getTypeSystemType();
-builder.startReturn();
-if (targetType == null || sourceType == null) {
-builder.tree(returnBuilder.getRoot());
-} else if (sourceType.needsCastTo(targetType)) {
-String castMethodName = TypeSystemCodeGenerator.expectTypeMethodName(targetType);
-if (!executable.hasUnexpectedValue(context)) {
-castMethodName = TypeSystemCodeGenerator.asTypeMethodName(targetType);
-}
-builder.tree(createCallTypeSystemMethod(parent, node, castMethodName, returnBuilder.getRoot()));
-} else {
-builder.tree(returnBuilder.getRoot());
-}
-builder.end();
-}
-if (!specialization.getExceptions().isEmpty()) {
-for (SpecializationThrowsData exception : specialization.getExceptions()) {
-builder.end().startCatchBlock(exception.getJavaClass(), "ex");
-builder.tree(createDeoptimize(builder));
-builder.tree(createCallRewriteMonomorphic(parent, executable.hasUnexpectedValue(context), executable.getType(), specialization, null,
-"Thrown " + ElementUtils.getSimpleName(exception.getJavaClass())));
-}
-builder.end();
-}
-if (!specialization.getAssumptions().isEmpty()) {
-builder.end().startCatchBlock(getContext().getTruffleTypes().getInvalidAssumption(), "ex");
-builder.tree(createCallRewriteMonomorphic(parent, executable.hasUnexpectedValue(context), executable.getType(), specialization, null, "Assumption failed"));
-builder.end();
-}
-return builder.getRoot();
-}
-protected CodeExecutableElement createCopyConstructorFactoryMethod(TypeMirror baseType, SpecializationData specialization) {
-List<Parameter> implicitTypeParams = getImplicitTypeParameters(specialization);
-String baseName = "current";
-CodeExecutableElement method = new CodeExecutableElement(modifiers(STATIC), specialization.getNode().getNodeType(), FACTORY_METHOD_NAME);
-method.addParameter(new CodeVariableElement(specialization.getNode().getNodeType(), baseName));
-for (Parameter implicitTypeParam : implicitTypeParams) {
-method.addParameter(new CodeVariableElement(getContext().getType(Class.class), implicitTypeName(implicitTypeParam)));
-}
-CodeTreeBuilder builder = method.createBuilder();
-builder.startReturn();
-builder.startNew(getElement().asType());
-builder.startGroup().cast(baseType, CodeTreeBuilder.singleString(baseName)).end();
-for (Parameter param : implicitTypeParams) {
-builder.string(implicitTypeName(param));
-}
-builder.end().end();
-return method;
-}
-protected CodeExecutableElement createConstructorFactoryMethod(SpecializationData specialization, ExecutableElement constructor) {
-List<? extends VariableElement> parameters = constructor.getParameters();
-CodeExecutableElement method = new CodeExecutableElement(modifiers(STATIC), specialization.getNode().getNodeType(), FACTORY_METHOD_NAME,
-parameters.toArray(new CodeVariableElement[parameters.size()]));
-CodeTreeBuilder builder = method.createBuilder();
-builder.startReturn();
-builder.startNew(getElement().asType());
-for (VariableElement param : parameters) {
-builder.string(((CodeVariableElement) param).getName());
-}
-builder.end().end();
-return method;
-}
-}
-private interface CodeBlock<T> {
-CodeTree create(CodeTreeBuilder parent, T value);
-}
 }

Mercurial > hg > truffle

comparison graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/generator/NodeCodeGenerator.java @ 18752:1acaa69ff61b