Mercurial > hg > truffle
diff 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 |
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--- a/graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/generator/NodeCodeGenerator.java Mon Dec 29 23:38:12 2014 +0100 +++ b/graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/generator/NodeCodeGenerator.java Mon Dec 29 23:38:16 2014 +0100 @@ -1,5 +1,5 @@ /* - * 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 @@ -22,426 +22,15 @@ */ 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) { @@ -460,2499 +49,4 @@ 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); - - } }