Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.codegen.processor/src/com/oracle/truffle/codegen/processor/node/NodeCodeGenerator.java @ 9231:ee3a9188c65e
Checkstyle fixes.
author | Christian Humer <christian.humer@gmail.com> |
---|---|
date | Mon, 22 Apr 2013 17:09:02 +0200 |
parents | bc82cde765b9 |
children | 07f8d136a05e |
line wrap: on
line source
/* * Copyright (c) 2012, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.truffle.codegen.processor.node; import static com.oracle.truffle.codegen.processor.Utils.*; 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.codegen.*; import com.oracle.truffle.codegen.processor.*; import com.oracle.truffle.codegen.processor.ast.*; import com.oracle.truffle.codegen.processor.node.NodeChildData.Cardinality; import com.oracle.truffle.codegen.processor.node.NodeChildData.ExecutionKind; import com.oracle.truffle.codegen.processor.template.*; import com.oracle.truffle.codegen.processor.typesystem.*; public class NodeCodeGenerator extends CompilationUnitFactory<NodeData> { private static final String THIS_NODE_LOCAL_VAR_NAME = "thisNode"; public NodeCodeGenerator(ProcessorContext context) { super(context); } 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 = specialization.getNode().getNodeId(); if (nodeid.endsWith("Node") && !nodeid.equals("Node")) { nodeid = nodeid.substring(0, nodeid.length() - 4); } String name = Utils.firstLetterUpperCase(nodeid); name += Utils.firstLetterUpperCase(specialization.getId()); name += "Node"; return name; } private static String valueName(ActualParameter param) { return param.getLocalName(); } private static String castValueName(ActualParameter parameter) { return valueName(parameter) + "Cast"; } private void addInternalValueParameters(CodeExecutableElement method, TemplateMethod specialization, boolean forceFrame) { if (forceFrame && specialization.getSpecification().findParameterSpec("frame") != null) { method.addParameter(new CodeVariableElement(getContext().getTruffleTypes().getFrame(), "frameValue")); } for (ActualParameter parameter : specialization.getParameters()) { ParameterSpec spec = parameter.getSpecification(); if (forceFrame && spec.getName().equals("frame")) { continue; } if (spec.isLocal()) { continue; } method.addParameter(new CodeVariableElement(parameter.getType(), valueName(parameter))); } } private static void addInternalValueParameterNames(CodeTreeBuilder builder, TemplateMethod source, TemplateMethod specialization, String unexpectedValueName, boolean forceFrame, boolean includeImplicit) { if (forceFrame && specialization.getSpecification().findParameterSpec("frame") != null) { builder.string("frameValue"); } for (ActualParameter parameter : specialization.getParameters()) { ParameterSpec spec = parameter.getSpecification(); if (forceFrame && spec.getName().equals("frame")) { continue; } if (!includeImplicit && (parameter.isImplicit())) { continue; } if (parameter.getSpecification().isLocal()) { continue; } ActualParameter sourceParameter = source.findParameter(parameter.getLocalName()); 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(ActualParameter sourceParameter, ActualParameter targetParameter) { if (sourceParameter != null) { 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); } else { return valueName(targetParameter); } } private CodeTree createTemplateMethodCall(CodeTreeBuilder parent, TemplateMethod sourceMethod, TemplateMethod targetMethod, String unexpectedValueName) { CodeTreeBuilder builder = parent.create(); boolean castedValues = sourceMethod != targetMethod; builder.startGroup(); ExecutableElement method = targetMethod.getMethod(); if (method == null) { throw new IllegalStateException("Cannot call synthetic operation methods."); } TypeElement targetClass = Utils.findNearestEnclosingType(method.getEnclosingElement()); NodeData node = (NodeData) targetMethod.getTemplate(); boolean accessible = targetMethod.canBeAccessedByInstanceOf(getContext(), 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 { ActualParameter parameter = null; for (ActualParameter searchParameter : targetMethod.getParameters()) { if (searchParameter.getSpecification().isSignature()) { parameter = searchParameter; break; } } ActualParameter sourceParameter = sourceMethod.findParameter(parameter.getLocalName()); assert parameter != null; if (castedValues && sourceParameter != null) { builder.string(valueName(sourceParameter, parameter)); } else { builder.string(valueName(parameter)); } } } builder.string("."); builder.startCall(method.getSimpleName().toString()); for (ActualParameter targetParameter : targetMethod.getParameters()) { ActualParameter valueParameter = sourceMethod.findParameter(targetParameter.getLocalName()); if (valueParameter == null) { valueParameter = targetParameter; } TypeData targetType = targetParameter.getTypeSystemType(); if (targetParameter.isImplicit() || valueParameter.isImplicit()) { continue; } TypeData valueType = null; if (valueParameter != null) { valueType = valueParameter.getTypeSystemType(); } 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.string("ex.getResult()"); } else if (targetType == null || targetType.isGeneric() || (valueType != null && valueType.equalsType(targetType))) { builder.startGroup(); if (valueType != null && sourceMethod.getMethodName().equals(targetMethod.getMethodName()) && !valueType.isGeneric() && targetType.isGeneric()) { builder.string("("); builder.type(targetType.getPrimitiveType()); builder.string(") "); } builder.string(valueName(targetParameter)); builder.end(); } else { builder.string(castValueName(targetParameter)); } } builder.end().end(); return builder.getRoot(); } private static String genClassName(NodeData node) { String nodeid = node.getNodeId(); if (nodeid.endsWith("Node") && !nodeid.equals("Node")) { nodeid = nodeid.substring(0, nodeid.length() - 4); } String name = Utils.firstLetterUpperCase(nodeid); name += "GenNode"; return name; } private String generatedGenericMethodName(SpecializationData specialization) { final String prefix = "generic"; if (specialization == null) { return prefix; } if (!specialization.getNode().needsRewrites(context)) { return prefix; } SpecializationData prev = null; for (SpecializationData current : specialization.getNode().getSpecializations()) { if (specialization == current) { if (prev == null || prev.isUninitialized()) { return prefix; } else { return prefix + current.getId(); } } prev = current; } return prefix; } private static CodeTree createCallTypeSystemMethod(ProcessorContext context, CodeTreeBuilder parent, NodeData node, String methodName, CodeTree value) { CodeTreeBuilder builder = new CodeTreeBuilder(parent); startCallTypeSystemMethod(context, builder, node, methodName); builder.tree(value); builder.end().end(); return builder.getRoot(); } private static void startCallTypeSystemMethod(ProcessorContext context, CodeTreeBuilder body, NodeData node, String methodName) { VariableElement singleton = TypeSystemCodeGenerator.findSingleton(context, node.getTypeSystem()); assert singleton != null; body.startGroup(); body.staticReference(singleton.getEnclosingElement().asType(), singleton.getSimpleName().toString()); body.string(".").startCall(methodName); } private CodeTree createGuardAndCast(CodeTreeBuilder parent, String conditionPrefix, SpecializationData sourceSpecialization, SpecializationData targetSpecialization, boolean castValues, CodeTree guardedStatements, CodeTree elseStatements) { NodeData node = targetSpecialization.getNode(); CodeTreeBuilder builder = new CodeTreeBuilder(parent); CodeTree implicitGuards = createImplicitGuards(parent, conditionPrefix, sourceSpecialization, targetSpecialization); CodeTree explicitGuards = createExplicitGuards(parent, implicitGuards == null ? conditionPrefix : null, sourceSpecialization, targetSpecialization); Set<String> valuesNeedsCast; if (castValues) { // cast all valuesNeedsCast = null; } else { // find out which values needs a cast valuesNeedsCast = new HashSet<>(); for (GuardData guard : targetSpecialization.getGuards()) { for (ActualParameter parameter : guard.getParameters()) { NodeChildData field = node.findChild(parameter.getSpecification().getName()); if (field == null) { continue; } TypeData typeData = parameter.getTypeSystemType(); if (typeData != null && !typeData.isGeneric()) { valuesNeedsCast.add(parameter.getLocalName()); } } } } int ifCount = 0; if (implicitGuards != null) { builder.startIf(); builder.tree(implicitGuards); builder.end(); builder.startBlock(); ifCount++; } builder.tree(createCasts(parent, valuesNeedsCast, sourceSpecialization, targetSpecialization)); if (explicitGuards != null) { builder.startIf(); builder.tree(explicitGuards); builder.end(); builder.startBlock(); ifCount++; } if (implicitGuards == null && explicitGuards == null && conditionPrefix != null && !conditionPrefix.isEmpty()) { builder.startIf(); builder.string(conditionPrefix); builder.end().startBlock(); ifCount++; } builder.tree(guardedStatements); builder.end(ifCount); if (elseStatements != null && ifCount > 0) { builder.tree(elseStatements); } return builder.getRoot(); } private CodeTree createExplicitGuards(CodeTreeBuilder parent, String conditionPrefix, SpecializationData valueSpecialization, SpecializationData guardedSpecialization) { CodeTreeBuilder builder = new CodeTreeBuilder(parent); String andOperator = conditionPrefix != null ? conditionPrefix + " && " : ""; if (guardedSpecialization.getGuards().size() > 0) { // Explicitly specified guards for (GuardData guard : guardedSpecialization.getGuards()) { builder.string(andOperator); builder.tree(createTemplateMethodCall(parent, valueSpecialization, guard, null)); andOperator = " && "; } } return builder.isEmpty() ? null : builder.getRoot(); } private CodeTree createCasts(CodeTreeBuilder parent, Set<String> castWhiteList, SpecializationData valueSpecialization, SpecializationData guardedSpecialization) { CodeTreeBuilder builder = new CodeTreeBuilder(parent); // Implict guards based on method signature for (ActualParameter guardedParam : guardedSpecialization.getParameters()) { NodeChildData field = guardedSpecialization.getNode().findChild(guardedParam.getSpecification().getName()); if (field == null) { continue; } ActualParameter valueParam = valueSpecialization.findParameter(guardedParam.getLocalName()); if (castWhiteList != null && !castWhiteList.contains(guardedParam.getLocalName())) { continue; } CodeTree cast = createCast(parent, field, valueParam, guardedParam); if (cast == null) { continue; } builder.tree(cast); } return builder.getRoot(); } private CodeTree createImplicitGuards(CodeTreeBuilder parent, String conditionPrefix, SpecializationData valueSpecialization, SpecializationData guardedSpecialization) { CodeTreeBuilder builder = new CodeTreeBuilder(parent); // Implict guards based on method signature String andOperator = conditionPrefix != null ? conditionPrefix + " && " : ""; for (ActualParameter guardedParam : guardedSpecialization.getParameters()) { NodeChildData field = guardedSpecialization.getNode().findChild(guardedParam.getSpecification().getName()); if (field == null) { continue; } ActualParameter valueParam = valueSpecialization.findParameter(guardedParam.getLocalName()); CodeTree implicitGuard = createImplicitGuard(builder, field, valueParam, guardedParam); if (implicitGuard == null) { continue; } builder.string(andOperator); builder.tree(implicitGuard); andOperator = " && "; } return builder.isEmpty() ? null : builder.getRoot(); } private CodeTree createImplicitGuard(CodeTreeBuilder parent, NodeChildData field, ActualParameter source, ActualParameter target) { NodeData node = field.getNodeData(); CodeTreeBuilder builder = new CodeTreeBuilder(parent); TypeData targetType = target.getTypeSystemType(); TypeData sourceType = source.getTypeSystemType(); if (targetType.equalsType(sourceType) || targetType.isGeneric()) { return null; } builder.startGroup(); if (field.isShortCircuit()) { ActualParameter shortCircuit = target.getPreviousParameter(); assert shortCircuit != null; builder.string("("); builder.string("!").string(valueName(shortCircuit)); builder.string(" || "); } startCallTypeSystemMethod(getContext(), builder, node, TypeSystemCodeGenerator.isTypeMethodName(target.getTypeSystemType())); builder.string(valueName(source)); builder.end().end(); // call if (field.isShortCircuit()) { builder.string(")"); } builder.end(); // group return builder.getRoot(); } private CodeTree createCast(CodeTreeBuilder parent, NodeChildData field, ActualParameter source, ActualParameter target) { NodeData node = field.getNodeData(); TypeData sourceType = source.getTypeSystemType(); TypeData targetType = target.getTypeSystemType(); if (!sourceType.needsCastTo(targetType)) { return null; } CodeTree condition = null; if (field.isShortCircuit()) { ActualParameter shortCircuit = target.getPreviousParameter(); assert shortCircuit != null; condition = CodeTreeBuilder.singleString(valueName(shortCircuit)); } CodeTree value = createCallTypeSystemMethod(context, parent, node, TypeSystemCodeGenerator.asTypeMethodName(targetType), CodeTreeBuilder.singleString(valueName(target))); return createLazyAssignment(parent, castValueName(target), target.getType(), condition, value); } /** * <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) { builder.startThrow().startNew(getContext().getType(UnsupportedOperationException.class)).end().end(); } private static List<ExecutableElement> findUserConstructors(TypeMirror nodeType) { List<ExecutableElement> constructors = new ArrayList<>(); for (ExecutableElement constructor : ElementFilter.constructorsIn(Utils.fromTypeMirror(nodeType).getEnclosedElements())) { if (constructor.getModifiers().contains(PRIVATE)) { continue; } if (isCopyConstructor(constructor)) { continue; } constructors.add(constructor); } if (constructors.isEmpty()) { constructors.add(new CodeExecutableElement(null, Utils.getSimpleName(nodeType))); } return constructors; } private static boolean isCopyConstructor(ExecutableElement element) { if (element.getParameters().size() != 1) { return false; } VariableElement var = element.getParameters().get(0); TypeElement type = Utils.findNearestEnclosingType(var); if (!Utils.typeEquals(var.asType(), type.asType())) { return false; } return true; } @Override protected void createChildren(NodeData node) { Map<NodeData, List<TypeElement>> childTypes = new LinkedHashMap<>(); if (node.getDeclaredNodes() != null && !node.getDeclaredNodes().isEmpty()) { for (NodeData nodeChild : node.getDeclaredNodes()) { NodeCodeGenerator generator = new NodeCodeGenerator(getContext()); childTypes.put(nodeChild, generator.process(null, nodeChild).getEnclosedElements()); } } if (node.needsFactory() || node.getNodeDeclaringChildren().size() > 0) { add(new NodeFactoryFactory(context, childTypes), node); } } private class NodeGenFactory extends ClassElementFactory<NodeData> { public NodeGenFactory(ProcessorContext context) { super(context); } @Override protected CodeTypeElement create(NodeData node) { CodeTypeElement clazz = createClass(node, modifiers(PRIVATE, ABSTRACT, STATIC), genClassName(node), node.getNodeType(), false); 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); method.createBuilder().startReturn().string("this.").string(child.getName()).end(); clazz.add(method); } } createConstructors(node, clazz); if (node.getExtensionElements() != null) { clazz.getEnclosedElements().addAll(node.getExtensionElements()); } return clazz; } private void createConstructors(NodeData node, CodeTypeElement clazz) { List<ExecutableElement> signatureConstructors = new ArrayList<>(); ExecutableElement copyConstructor = null; List<? extends ExecutableElement> constructors = ElementFilter.constructorsIn(Utils.fromTypeMirror(node.getNodeType()).getEnclosedElements()); for (ExecutableElement constructor : constructors) { if (constructor.getModifiers().contains(Modifier.PRIVATE) || constructor.getParameters().isEmpty()) { continue; } if (isCopyConstructor(constructor)) { assert copyConstructor == null; copyConstructor = createConstructor(clazz, constructor, true); } else { signatureConstructors.add(createConstructor(clazz, constructor, false)); } } if (copyConstructor == null && node.needsRewrites(getContext())) { clazz.add(createConstructor(clazz, null, true)); } else if (copyConstructor != null) { clazz.add(copyConstructor); } if (signatureConstructors.isEmpty() && !node.getChildren().isEmpty()) { clazz.add(createConstructor(clazz, null, false)); } else { clazz.getEnclosedElements().addAll(signatureConstructors); } } private CodeExecutableElement createConstructor(CodeTypeElement type, ExecutableElement superConstructor, boolean copyConstructor) { CodeExecutableElement method = new CodeExecutableElement(null, type.getSimpleName().toString()); CodeTreeBuilder builder = method.createBuilder(); if (!copyConstructor) { if (superConstructor != null) { for (VariableElement param : superConstructor.getParameters()) { method.getParameters().add(CodeVariableElement.clone(param)); } } for (NodeChildData child : getModel().getChildren()) { method.getParameters().add(new CodeVariableElement(child.getNodeType(), child.getName())); } } else { if (!(superConstructor == null && getModel().getChildren().isEmpty())) { method.getParameters().add(new CodeVariableElement(type.asType(), "copy")); } } if (superConstructor != null) { builder.startStatement(); builder.startSuperCall(); if (copyConstructor) { builder.string("copy"); } else { for (VariableElement param : superConstructor.getParameters()) { builder.string(param.getSimpleName().toString()); } } builder.end(); builder.end(); } for (NodeChildData child : getModel().getChildren()) { builder.startStatement(); builder.string("this.").string(child.getName()).string(" = "); if (child.getCardinality() == Cardinality.MANY) { builder.startCall("adoptChildren"); } else { builder.startCall("adoptChild"); } builder.startGroup(); if (copyConstructor) { builder.string("copy."); } builder.string(child.getName()); builder.end(); builder.end(); builder.end(); } return method; } private CodeVariableElement createChildField(NodeChildData child) { DeclaredType annotationType; if (child.getCardinality() == Cardinality.MANY) { annotationType = getContext().getTruffleTypes().getChildrenAnnotation(); } else { annotationType = getContext().getTruffleTypes().getChildAnnotation(); } CodeVariableElement var = new CodeVariableElement(child.getNodeType(), child.getName()); var.getModifiers().add(Modifier.PROTECTED); var.getAnnotationMirrors().add(new CodeAnnotationMirror(annotationType)); return var; } } private class NodeFactoryFactory extends ClassElementFactory<NodeData> { private final Map<NodeData, List<TypeElement>> childTypes; private CodeTypeElement generatedNode; public NodeFactoryFactory(ProcessorContext context, Map<NodeData, List<TypeElement>> childElements) { super(context); this.childTypes = childElements; } @Override protected CodeTypeElement create(NodeData node) { Modifier visibility = Utils.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); clazz.add(createConstructorUsingFields(modifiers(PRIVATE), clazz)); return clazz; } @Override protected void createChildren(NodeData node) { CodeTypeElement clazz = getElement(); Modifier createVisibility = Utils.getVisibility(clazz.getModifiers()); if (node.needsFactory()) { NodeGenFactory factory = new NodeGenFactory(context); add(factory, node); generatedNode = factory.getElement(); createFactoryMethods(node, clazz, createVisibility); if (node.getSpecializations().size() > 1) { clazz.add(createCreateSpecializedMethod(node, createVisibility)); } if (node.needsRewrites(context)) { clazz.add(createSpecializeMethod(node)); } if (node.getGenericSpecialization() != null) { List<CodeExecutableElement> genericMethods = createGeneratedGenericMethod(node); for (CodeExecutableElement method : genericMethods) { clazz.add(method); } } for (SpecializationData specialization : node.getSpecializations()) { add(new SpecializedNodeFactory(context, generatedNode), specialization); } TypeMirror nodeFactory = Utils.getDeclaredType(Utils.fromTypeMirror(getContext().getType(NodeFactory.class)), node.getNodeType()); clazz.getImplements().add(nodeFactory); clazz.add(createCreateNodeMethod(node)); clazz.add(createCreateNodeSpecializedMethod(node)); clazz.add(createGetNodeClassMethod(node)); clazz.add(createGetNodeSignaturesMethod()); clazz.add(createGetChildrenSignatureMethod(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 = Utils.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.getParent() == null && children.size() > 0) { clazz.add(createGetFactories(node)); } } private CodeExecutableElement createGetNodeClassMethod(NodeData node) { TypeMirror returnType = Utils.getDeclaredType(Utils.fromTypeMirror(getContext().getType(Class.class)), node.getNodeType()); CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), returnType, "getNodeClass"); CodeTreeBuilder builder = method.createBuilder(); builder.startReturn().typeLiteral(node.getNodeType()).end(); return method; } private CodeExecutableElement createGetNodeSignaturesMethod() { TypeElement listType = Utils.fromTypeMirror(getContext().getType(List.class)); TypeMirror classType = getContext().getType(Class.class); TypeMirror returnType = Utils.getDeclaredType(listType, Utils.getDeclaredType(listType, classType)); CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), returnType, "getNodeSignatures"); CodeTreeBuilder builder = method.createBuilder(); builder.startReturn(); builder.startStaticCall(getContext().getType(Arrays.class), "asList"); List<ExecutableElement> constructors = findUserConstructors(generatedNode.asType()); for (ExecutableElement constructor : constructors) { builder.tree(createAsList(builder, Utils.asTypeMirrors(constructor.getParameters()), classType)); } builder.end(); builder.end(); return method; } private CodeExecutableElement createGetChildrenSignatureMethod(NodeData node) { Types types = getContext().getEnvironment().getTypeUtils(); TypeElement listType = Utils.fromTypeMirror(getContext().getType(List.class)); TypeMirror classType = getContext().getType(Class.class); TypeMirror nodeType = getContext().getTruffleTypes().getNode(); TypeMirror wildcardNodeType = types.getWildcardType(nodeType, null); classType = Utils.getDeclaredType(Utils.fromTypeMirror(classType), wildcardNodeType); TypeMirror returnType = Utils.getDeclaredType(listType, classType); CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), returnType, "getExecutionSignature"); CodeTreeBuilder builder = method.createBuilder(); List<TypeMirror> signatureTypes = new ArrayList<>(); assert !node.getSpecializations().isEmpty(); SpecializationData data = node.getSpecializations().get(0); for (ActualParameter parameter : data.getParameters()) { ParameterSpec spec = parameter.getSpecification(); NodeChildData field = node.findChild(spec.getName()); if (field == null) { continue; } TypeMirror type; if (field.getCardinality() == Cardinality.MANY && field.getNodeType().getKind() == TypeKind.ARRAY) { type = ((ArrayType) field.getNodeType()).getComponentType(); } else { type = field.getNodeType(); } signatureTypes.add(type); } builder.startReturn().tree(createAsList(builder, signatureTypes, classType)).end(); return method; } private CodeTree createAsList(CodeTreeBuilder parent, List<TypeMirror> types, TypeMirror elementClass) { CodeTreeBuilder builder = parent.create(); builder.startGroup(); builder.type(getContext().getType(Arrays.class)); builder.string(".<").type(elementClass).string(">"); builder.startCall("asList"); for (TypeMirror typeMirror : types) { builder.typeLiteral(typeMirror); } builder.end().end(); return builder.getRoot(); } 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()) { builder.string(" && "); if (!param.asType().getKind().isPrimitive()) { builder.string("(arguments[" + index + "] == null || "); } builder.string("arguments[" + index + "] instanceof "); builder.type(Utils.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(); 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 CodeExecutableElement createCreateNodeSpecializedMethod(NodeData node) { CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), node.getNodeType(), "createNodeSpecialized"); CodeVariableElement nodeParam = new CodeVariableElement(node.getNodeType(), "thisNode"); CodeVariableElement arguments = new CodeVariableElement(getContext().getType(Class.class), "types"); method.addParameter(nodeParam); method.addParameter(arguments); method.setVarArgs(true); CodeTreeBuilder builder = method.createBuilder(); if (!node.needsRewrites(getContext())) { builder.startThrow().startNew(getContext().getType(UnsupportedOperationException.class)).end().end(); } else { builder.startIf(); builder.string("types.length == 1"); builder.end(); builder.startBlock(); builder.startReturn().startCall("createSpecialized"); builder.string("thisNode"); builder.string("types[0]"); builder.end().end(); builder.end(); builder.startElseBlock(); builder.startThrow().startNew(getContext().getType(IllegalArgumentException.class)); builder.doubleQuote("Invalid createSpecialized signature."); builder.end().end(); builder.end(); } return method; } private ExecutableElement createGetInstanceMethod(NodeData node, Modifier visibility) { TypeElement nodeFactoryType = Utils.fromTypeMirror(getContext().getType(NodeFactory.class)); TypeMirror returnType = Utils.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.getParent() != null) { return Utils.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 && !Utils.typeEquals(child.getNodeType(), prev)) { allSame = false; } prev = child.getNodeType(); } TypeMirror commonNodeSuperType = Utils.getCommonSuperType(getContext(), nodeTypesList.toArray(new TypeMirror[nodeTypesList.size()])); Types types = getContext().getEnvironment().getTypeUtils(); TypeMirror factoryType = getContext().getType(NodeFactory.class); TypeMirror baseType; if (allSame) { baseType = Utils.getDeclaredType(Utils.fromTypeMirror(factoryType), commonNodeSuperType); } else { baseType = Utils.getDeclaredType(Utils.fromTypeMirror(factoryType), types.getWildcardType(commonNodeSuperType, null)); } TypeMirror listType = Utils.getDeclaredType(Utils.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.getParent() != null) { factories.add(childNode); childNode = childNode.getParent(); } 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.null_(); } else { body.startNew(nodeSpecializationClassName(node.getSpecializations().get(0))); for (VariableElement var : method.getParameters()) { body.string(var.getSimpleName().toString()); } body.end(); } body.end(); return method; } private CodeExecutableElement createCreateSpecializedMethod(NodeData node, Modifier visibility) { CodeExecutableElement method = new CodeExecutableElement(modifiers(), node.getNodeType(), "createSpecialized"); if (visibility != null) { method.getModifiers().add(visibility); } method.getModifiers().add(Modifier.STATIC); method.addParameter(new CodeVariableElement(node.getNodeType(), THIS_NODE_LOCAL_VAR_NAME)); method.addParameter(new CodeVariableElement(getContext().getType(Class.class), "specializationClass")); CodeTreeBuilder body = method.createBuilder(); body.startStatement(); body.type(generatedNode.asType()).string(" ").string(THIS_NODE_LOCAL_VAR_NAME + "Cast"); body.string(" = ").string("(").type(generatedNode.asType()).string(") ").string(THIS_NODE_LOCAL_VAR_NAME); body.end(); boolean first = true; for (TypeData type : node.getTypeSystem().getTypes()) { SpecializationData specialization = node.findUniqueSpecialization(type); if (specialization != null && !type.isGeneric()) { if (first) { body.startIf(); first = false; } else { body.startElseIf(); } body.string("specializationClass == ").type(type.getBoxedType()).string(".class").end().startBlock(); body.startReturn().startNew(nodeSpecializationClassName(specialization)); body.string(THIS_NODE_LOCAL_VAR_NAME + "Cast"); body.end().end(); // new, return body.end(); // if } } body.startReturn().startNew(nodeSpecializationClassName(node.getGenericSpecialization())); body.string(THIS_NODE_LOCAL_VAR_NAME + "Cast"); body.end().end(); return method; } private CodeExecutableElement createSpecializeMethod(NodeData node) { CodeExecutableElement method = new CodeExecutableElement(modifiers(PRIVATE, STATIC), node.getNodeType(), "specialize"); method.addParameter(new CodeVariableElement(generatedNode.asType(), THIS_NODE_LOCAL_VAR_NAME)); method.addParameter(new CodeVariableElement(getContext().getType(Class.class), "minimumState")); addInternalValueParameters(method, node.getGenericSpecialization(), true); CodeTreeBuilder body = method.createBuilder(); body.startStatement().string("boolean allowed = (minimumState == ").string(nodeSpecializationClassName(node.getSpecializations().get(0))).string(".class)").end(); for (int i = 1; i < node.getSpecializations().size(); i++) { SpecializationData specialization = node.getSpecializations().get(i); body.startStatement().string("allowed = allowed || (minimumState == ").string(nodeSpecializationClassName(specialization)).string(".class)").end(); CodeTreeBuilder guarded = new CodeTreeBuilder(body); guarded.startReturn().startNew(nodeSpecializationClassName(specialization)); guarded.string(THIS_NODE_LOCAL_VAR_NAME); guarded.end().end(); body.tree(createGuardAndCast(body, "allowed", node.getGenericSpecialization(), specialization, false, guarded.getRoot(), null)); } body.startThrow().startNew(getContext().getType(IllegalArgumentException.class)).end().end(); return method; } private List<CodeExecutableElement> createGeneratedGenericMethod(NodeData node) { TypeMirror genericReturnType = node.getGenericSpecialization().getReturnType().getType(); if (node.needsRewrites(context)) { List<CodeExecutableElement> methods = new ArrayList<>(); List<SpecializationData> specializations = node.getSpecializations(); SpecializationData prev = null; for (int i = 0; i < specializations.size(); i++) { SpecializationData current = specializations.get(i); SpecializationData next = i + 1 < specializations.size() ? specializations.get(i + 1) : null; if (prev == null || current.isUninitialized()) { prev = current; continue; } else { String methodName = generatedGenericMethodName(current); CodeExecutableElement method = new CodeExecutableElement(modifiers(PRIVATE, STATIC), genericReturnType, methodName); method.addParameter(new CodeVariableElement(node.getNodeType(), THIS_NODE_LOCAL_VAR_NAME)); addInternalValueParameters(method, node.getGenericSpecialization(), true); emitGeneratedGenericSpecialization(method.createBuilder(), current, next); methods.add(method); } prev = current; } return methods; } else { CodeExecutableElement method = new CodeExecutableElement(modifiers(PRIVATE, STATIC), genericReturnType, generatedGenericMethodName(null)); method.addParameter(new CodeVariableElement(node.getNodeType(), THIS_NODE_LOCAL_VAR_NAME)); addInternalValueParameters(method, node.getGenericSpecialization(), true); emitInvokeDoMethod(method.createBuilder(), node.getGenericSpecialization(), 0); return Arrays.asList(method); } } private void emitGeneratedGenericSpecialization(CodeTreeBuilder builder, SpecializationData current, SpecializationData next) { CodeTreeBuilder invokeMethodBuilder = new CodeTreeBuilder(builder); emitInvokeDoMethod(invokeMethodBuilder, current, 0); CodeTree invokeMethod = invokeMethodBuilder.getRoot(); if (next != null) { CodeTreeBuilder nextBuilder = builder.create(); nextBuilder.startReturn().startCall(generatedGenericMethodName(next)); nextBuilder.string(THIS_NODE_LOCAL_VAR_NAME); addInternalValueParameterNames(nextBuilder, next, next, null, true, true); nextBuilder.end().end(); invokeMethod = createGuardAndCast(builder, null, current.getNode().getGenericSpecialization(), current, true, invokeMethod, nextBuilder.getRoot()); } builder.tree(invokeMethod); if (next != null) { builder.end(); } } private void emitInvokeDoMethod(CodeTreeBuilder builder, SpecializationData specialization, int level) { if (!specialization.getExceptions().isEmpty()) { builder.startTryBlock(); } if (specialization.getMethod() == null) { emitEncounteredSynthetic(builder); } else { builder.startReturn(); builder.tree(createTemplateMethodCall(builder, specialization.getNode().getGenericSpecialization(), specialization, null)); builder.end(); // return } if (!specialization.getExceptions().isEmpty()) { for (SpecializationThrowsData exception : specialization.getExceptions()) { builder.end().startCatchBlock(exception.getJavaClass(), "ex" + level); builder.startReturn().startCall(generatedGenericMethodName(exception.getTransitionTo())); builder.string(THIS_NODE_LOCAL_VAR_NAME); addInternalValueParameterNames(builder, exception.getTransitionTo(), exception.getTransitionTo(), null, true, true); builder.end().end(); } builder.end(); } } } private class SpecializedNodeFactory extends ClassElementFactory<SpecializationData> { private final CodeTypeElement nodeGen; public SpecializedNodeFactory(ProcessorContext context, CodeTypeElement nodeGen) { super(context); 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); return clazz; } @Override protected void createChildren(SpecializationData specialization) { CodeTypeElement clazz = getElement(); NodeData node = specialization.getNode(); TypeElement superTypeElement = Utils.fromTypeMirror(clazz.getSuperclass()); for (ExecutableElement constructor : ElementFilter.constructorsIn(superTypeElement.getEnclosedElements())) { ExecutableElement superConstructor = createSuperConstructor(clazz, constructor); if (superConstructor != null) { clazz.add(superConstructor); } } for (ExecutableTypeData execType : node.getExecutableTypes()) { if (execType.isFinal()) { continue; } CodeExecutableElement executeMethod = createExecutableTypeOverride(execType); clazz.add(executeMethod); CodeTreeBuilder builder = executeMethod.createBuilder(); CodeTree result = createExecuteBody(builder, specialization, execType); if (result != null) { builder.tree(result); } else { clazz.remove(executeMethod); } } if (node.needsRewrites(getContext()) && !specialization.isGeneric() && !specialization.isUninitialized()) { buildSpecializeAndExecute(clazz, specialization); } } private CodeTree createExecuteBody(CodeTreeBuilder parent, SpecializationData specialization, ExecutableTypeData execType) { TypeData primaryType = specialization.getReturnType().getTypeSystemType(); CodeTreeBuilder builder = new CodeTreeBuilder(parent); ExecutableTypeData foundEvaluatedPrimaryType = findFunctionalExecutableType(specialization, execType.getEvaluatedCount()); if (execType == foundEvaluatedPrimaryType || foundEvaluatedPrimaryType == null) { builder.tree(createFunctionalExecute(builder, specialization, execType)); } else if (needsCastingExecuteMethod(execType, primaryType)) { builder.tree(createCastingExecute(builder, specialization, execType, foundEvaluatedPrimaryType)); } else { return null; } return builder.getRoot(); } private CodeExecutableElement createExecutableTypeOverride(ExecutableTypeData execType) { CodeExecutableElement method = CodeExecutableElement.clone(getContext().getEnvironment(), execType.getMethod()); int i = 0; for (VariableElement param : method.getParameters()) { CodeVariableElement var = CodeVariableElement.clone(param); var.setName(valueName(execType.getParameters().get(i))); method.getParameters().set(i, var); i++; } method.getAnnotationMirrors().clear(); method.getModifiers().remove(Modifier.ABSTRACT); return method; } private boolean needsCastingExecuteMethod(ExecutableTypeData execType, TypeData primaryType) { if (execType.isAbstract()) { return true; } if (Utils.isPrimitiveOrVoid(primaryType.getPrimitiveType()) && Utils.isPrimitiveOrVoid(execType.getType().getPrimitiveType())) { return true; } if (execType.getType().isGeneric()) { return true; } return false; } private 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 (!Utils.typeEquals(compareType.getType().getPrimitiveType(), primaryType.getPrimitiveType())) { continue; } filteredTypes.add(compareType); } for (ExecutableTypeData compareType : filteredTypes) { if (compareType.startsWithSignature(specialization)) { return compareType; } } for (ExecutableTypeData compareType : otherTypes) { if (compareType.startsWithSignature(specialization)) { return compareType; } } return null; } private CodeTree createCastingExecute(CodeTreeBuilder parent, SpecializationData specialization, ExecutableTypeData executable, ExecutableTypeData castExecutable) { TypeData type = executable.getType(); CodeTreeBuilder builder = new CodeTreeBuilder(parent); NodeData node = specialization.getNode(); ExecutableTypeData castedType = node.findExecutableType(type); TypeData primaryType = castExecutable.getType(); boolean needsTry = castExecutable.hasUnexpectedValue(getContext()); boolean returnVoid = type.isVoid(); List<ActualParameter> executeParameters = new ArrayList<>(); for (ActualParameter sourceParameter : executable.getParameters()) { NodeChildData field = specialization.getNode().findChild(sourceParameter.getSpecification().getName()); if (field == null) { continue; } ActualParameter targetParameter = castExecutable.findParameter(sourceParameter.getLocalName()); if (targetParameter != null) { TypeData sourceType = sourceParameter.getTypeSystemType(); TypeData targetType = targetParameter.getTypeSystemType(); if (sourceType.needsCastTo(targetType)) { executeParameters.add(targetParameter); } } } builder.tree(createExecuteChildren(builder, executable, specialization, executeParameters, null, true)); CodeTree primaryExecuteCall = createTemplateMethodCall(builder, executable, castExecutable, null); 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(createExpectType(node, castedType, CodeTreeBuilder.singleString("ex.getResult()"))); builder.end(); } builder.end(); if (!returnVoid) { builder.startReturn(); builder.tree(createExpectType(node, castedType, CodeTreeBuilder.singleString("value"))); builder.end(); } } else { if (returnVoid) { builder.statement(primaryExecuteCall); } else { builder.startReturn(); builder.tree(createExpectType(node, castedType, primaryExecuteCall)); builder.end(); } } return builder.getRoot(); } private CodeTree createExpectType(NodeData node, ExecutableTypeData castedType, CodeTree value) { if (castedType == null) { return value; } else if (castedType.getType().isVoid()) { return value; } else if (castedType.getType().isGeneric()) { return value; } CodeTreeBuilder builder = CodeTreeBuilder.createBuilder(); String targetMethodName; if (castedType.hasUnexpectedValue(getContext())) { targetMethodName = TypeSystemCodeGenerator.expectTypeMethodName(castedType.getType()); } else { targetMethodName = TypeSystemCodeGenerator.asTypeMethodName(castedType.getType()); } startCallTypeSystemMethod(getContext(), builder, node, targetMethodName); builder.tree(value); builder.end().end(); return builder.getRoot(); } private CodeTree createFunctionalExecute(CodeTreeBuilder parent, SpecializationData specialization, ExecutableTypeData executable) { CodeTreeBuilder builder = new CodeTreeBuilder(parent); if (specialization.isUninitialized()) { builder.tree(createDeoptimize(builder)); } builder.tree(createExecuteChildren(builder, executable, specialization, specialization.getParameters(), null, false)); CodeTree executeNode; if (specialization.isUninitialized()) { builder.tree(createSpecializeCall(builder, executable, specialization)); } executeNode = createExecute(builder, executable, specialization); SpecializationData next = specialization.findNextSpecialization(); CodeTree returnSpecialized = null; if (next != null) { returnSpecialized = createReturnSpecializeAndExecute(builder, executable, next, null); } builder.tree(createGuardAndCast(builder, null, specialization, specialization, true, executeNode, returnSpecialized)); return builder.getRoot(); } private CodeTree createDeoptimize(CodeTreeBuilder parent) { CodeTreeBuilder builder = new CodeTreeBuilder(parent); builder.startStatement(); builder.startStaticCall(getContext().getTruffleTypes().getTruffleIntrinsics(), "deoptimize").end(); builder.end(); return builder.getRoot(); } private CodeTree createSpecializeCall(CodeTreeBuilder parent, ExecutableTypeData executable, SpecializationData specialization) { NodeData node = specialization.getNode(); CodeTreeBuilder builder = new CodeTreeBuilder(parent); emitSpecializationListeners(builder, node); builder.startStatement(); builder.startCall("replace"); if (node.needsRewrites(getContext())) { builder.startCall(factoryClassName(node), "specialize"); builder.string("this"); builder.typeLiteral(builder.findMethod().getEnclosingElement().asType()); addInternalValueParameterNames(builder, executable, specialization, null, true, true); builder.end(); // call replace, call specialize } else { builder.startCall(factoryClassName(node), "createSpecialized").string("this").string("null").end(); } builder.end().end(); 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()) { builder.startTryBlock(); } CodeTreeBuilder returnBuilder = new CodeTreeBuilder(parent); if (specialization.isUninitialized()) { String genericMethodName = generatedGenericMethodName(null); returnBuilder.startCall(factoryClassName(node), genericMethodName); returnBuilder.string("this"); addInternalValueParameterNames(returnBuilder, executable, specialization, null, true, true); returnBuilder.end(); } else if (specialization.getMethod() == null && !node.needsRewrites(context)) { emitEncounteredSynthetic(builder); } else if (specialization.isGeneric()) { String genericMethodName; if (!specialization.isUseSpecializationsForGeneric()) { genericMethodName = generatedGenericMethodName(specialization); } else { genericMethodName = generatedGenericMethodName(null); } returnBuilder.startCall(factoryClassName(node), genericMethodName); returnBuilder.string("this"); addInternalValueParameterNames(returnBuilder, executable, specialization, null, true, true); returnBuilder.end(); } else { returnBuilder.tree(createTemplateMethodCall(returnBuilder, executable, specialization, null)); } if (!returnBuilder.isEmpty()) { builder.startReturn(); TypeData targetType = node.getTypeSystem().findTypeData(builder.findMethod().getReturnType()); TypeData sourceType = specialization.getReturnType().getTypeSystemType(); if (targetType == null || sourceType == null) { builder.tree(returnBuilder.getRoot()); } else if (sourceType.needsCastTo(targetType)) { builder.tree(createCallTypeSystemMethod(context, parent, node, TypeSystemCodeGenerator.expectTypeMethodName(targetType), 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(createReturnSpecializeAndExecute(parent, executable, exception.getTransitionTo(), null)); } builder.end(); } return builder.getRoot(); } private CodeTree createExecuteChildren(CodeTreeBuilder parent, ExecutableTypeData sourceExecutable, SpecializationData specialization, List<ActualParameter> targetParameters, ActualParameter unexpectedParameter, boolean cast) { NodeData sourceNode = specialization.getNode(); CodeTreeBuilder builder = new CodeTreeBuilder(parent); for (ActualParameter targetParameter : targetParameters) { NodeChildData field = sourceNode.findChild(targetParameter.getSpecification().getName()); if (field == null) { continue; } TypeData targetType = targetParameter.getTypeSystemType(); ExecutableTypeData targetExecutable = field.getNodeData().findExecutableType(targetType); ActualParameter sourceParameter = sourceExecutable.findParameter(targetParameter.getLocalName()); String targetVariableName = null; CodeTree executionExpression = null; if (cast || sourceParameter != null) { TypeData sourceType = sourceParameter.getTypeSystemType(); if (!sourceType.needsCastTo(targetType)) { if (field.isShortCircuit() && sourceParameter != null) { builder.tree(createShortCircuitValue(builder, sourceExecutable, specialization, field, targetParameter.getPreviousParameter(), unexpectedParameter)); } continue; } executionExpression = createExpectType(sourceNode, targetExecutable, CodeTreeBuilder.singleString(valueName(targetParameter))); targetVariableName = castValueName(targetParameter); } else if (sourceParameter == null) { targetVariableName = valueName(targetParameter); executionExpression = createExecuteChildExpression(builder, field, targetParameter); } CodeTreeVariable executionVar = new CodeTreeVariable(); CodeTree shortCircuitTree = createShortCircuitTree(builder, executionVar, targetVariableName, sourceExecutable, specialization, targetParameter, unexpectedParameter); CodeTree unexpectedTree = createCatchUnexpectedTree(builder, executionExpression, targetVariableName, specialization, sourceExecutable, targetExecutable, targetParameter, shortCircuitTree != executionVar); executionVar.set(unexpectedTree); builder.tree(shortCircuitTree); } return builder.getRoot(); } private void emitSpecializationListeners(CodeTreeBuilder builder, NodeData node) { for (TemplateMethod listener : node.getSpecializationListeners()) { builder.startStatement(); builder.tree(createTemplateMethodCall(builder, listener, listener, null)); builder.end(); // statement } } private CodeTree createCatchUnexpectedTree(CodeTreeBuilder parent, CodeTree body, String targetVariableName, SpecializationData specialization, ExecutableTypeData currentExecutable, ExecutableTypeData targetExecutable, ActualParameter param, boolean shortCircuit) { CodeTreeBuilder builder = new CodeTreeBuilder(parent); boolean unexpected = targetExecutable.hasUnexpectedValue(getContext()); builder.startStatement(); if (!shortCircuit) { builder.type(param.getType()).string(" ").string(targetVariableName); } if (unexpected) { if (!shortCircuit) { builder.end(); } builder.startTryBlock(); builder.startStatement(); builder.string(targetVariableName); } else if (shortCircuit) { builder.startStatement(); builder.string(targetVariableName); } builder.string(" = "); builder.tree(body); builder.end(); if (unexpected) { builder.end().startCatchBlock(getUnexpectedValueException(), "ex"); SpecializationData generic = specialization.getNode().getGenericSpecialization(); ActualParameter genericParameter = generic.findParameter(param.getLocalName()); List<ActualParameter> genericParameters = generic.getParametersAfter(genericParameter); builder.tree(createExecuteChildren(parent, currentExecutable, generic, genericParameters, genericParameter, false)); builder.tree(createReturnSpecializeAndExecute(builder, currentExecutable, specialization.findNextSpecialization(), param)); builder.end(); // catch block } return builder.getRoot(); } private CodeTree createExecuteChildExpression(CodeTreeBuilder parent, NodeChildData targetField, ActualParameter sourceParameter) { TypeData type = sourceParameter.getTypeSystemType(); ExecutableTypeData execType = targetField.getNodeData().findExecutableType(type); /* * FIXME Temporary deactivated due to partial evaluation failure else if * (accessElement.getKind() == ElementKind.METHOD) { * builder.startCall(accessElement.getSimpleName().toString()).end(); } */ CodeTreeBuilder builder = new CodeTreeBuilder(parent); if (targetField != null) { Element accessElement = targetField.getAccessElement(); if (accessElement == null || accessElement.getKind() == ElementKind.METHOD) { builder.string("this.").string(targetField.getName()); } else if (accessElement.getKind() == ElementKind.FIELD) { builder.string("this.").string(accessElement.getSimpleName().toString()); } else { throw new AssertionError(); } if (sourceParameter.getSpecification().isIndexed()) { builder.string("[" + sourceParameter.getIndex() + "]"); } builder.string("."); } builder.startCall(execType.getMethodName()); if (execType.getParameters().size() == 1) { builder.string("frameValue"); } builder.end(); return builder.getRoot(); } private CodeTree createShortCircuitTree(CodeTreeBuilder parent, CodeTree body, String targetVariableName, ExecutableTypeData currentExecutable, SpecializationData specialization, ActualParameter parameter, ActualParameter exceptionParam) { CodeTreeBuilder builder = new CodeTreeBuilder(parent); NodeChildData forField = specialization.getNode().findChild(parameter.getSpecification().getName()); if (forField == null) { return body; } if (forField.getExecutionKind() != ExecutionKind.SHORT_CIRCUIT) { return body; } ActualParameter shortCircuitParam = specialization.getPreviousParam(parameter); builder.tree(createShortCircuitValue(builder, currentExecutable, specialization, forField, shortCircuitParam, exceptionParam)); builder.declaration(parameter.getType(), targetVariableName, CodeTreeBuilder.createBuilder().defaultValue(parameter.getType())); builder.startIf().string(shortCircuitParam.getLocalName()).end(); builder.startBlock(); builder.tree(body); builder.end(); return builder.getRoot(); } private CodeTree createShortCircuitValue(CodeTreeBuilder parent, ExecutableTypeData currentExecutable, SpecializationData specialization, NodeChildData forField, ActualParameter shortCircuitParam, ActualParameter exceptionParam) { CodeTreeBuilder builder = new CodeTreeBuilder(parent); int shortCircuitIndex = 0; for (NodeChildData field : specialization.getNode().getChildren()) { if (field.getExecutionKind() == ExecutionKind.SHORT_CIRCUIT) { if (field == forField) { break; } shortCircuitIndex++; } } builder.startStatement().type(shortCircuitParam.getType()).string(" ").string(valueName(shortCircuitParam)).string(" = "); ShortCircuitData shortCircuitData = specialization.getShortCircuits().get(shortCircuitIndex); builder.tree(createTemplateMethodCall(builder, currentExecutable, shortCircuitData, exceptionParam != null ? exceptionParam.getLocalName() : null)); builder.end(); // statement return builder.getRoot(); } private CodeTree createReturnSpecializeAndExecute(CodeTreeBuilder parent, ExecutableTypeData executable, SpecializationData nextSpecialization, ActualParameter exceptionParam) { CodeTreeBuilder specializeCall = new CodeTreeBuilder(parent); specializeCall.startCall("specializeAndExecute"); specializeCall.string(nodeSpecializationClassName(nextSpecialization) + ".class"); addInternalValueParameterNames(specializeCall, executable, nextSpecialization.getNode().getGenericSpecialization(), exceptionParam != null ? exceptionParam.getLocalName() : null, true, true); specializeCall.end().end(); CodeTreeBuilder builder = new CodeTreeBuilder(parent); builder.startReturn(); builder.tree(createExpectType(nextSpecialization.getNode(), executable, specializeCall.getRoot())); builder.end(); return builder.getRoot(); } private void buildSpecializeAndExecute(CodeTypeElement clazz, SpecializationData specialization) { NodeData node = specialization.getNode(); TypeData returnType = node.getGenericSpecialization().getReturnType().getTypeSystemType(); CodeExecutableElement method = new CodeExecutableElement(modifiers(PRIVATE), returnType.getPrimitiveType(), "specializeAndExecute"); method.addParameter(new CodeVariableElement(getContext().getType(Class.class), "minimumState")); addInternalValueParameters(method, specialization.getNode().getGenericSpecialization(), true); clazz.add(method); CodeTreeBuilder builder = method.createBuilder(); builder.tree(createDeoptimize(builder)); emitSpecializationListeners(builder, specialization.getNode()); builder.startStatement(); builder.startCall("replace"); builder.startCall(factoryClassName(specialization.getNode()), "specialize").string("this").string("minimumState"); addInternalValueParameterNames(builder, specialization.getNode().getGenericSpecialization(), specialization.getNode().getGenericSpecialization(), null, true, true); builder.end(); builder.end(); // call replace builder.end(); // statement String generatedMethodName; if (specialization.getNode().getGenericSpecialization().isUseSpecializationsForGeneric()) { generatedMethodName = generatedGenericMethodName(null); } else { generatedMethodName = generatedGenericMethodName(specialization.findNextSpecialization()); } ExecutableElement generatedGeneric = clazz.getEnclosingClass().getMethod(generatedMethodName); CodeTreeBuilder genericExecute = CodeTreeBuilder.createBuilder(); genericExecute.startCall(factoryClassName(specialization.getNode()), generatedMethodName); genericExecute.string("this"); addInternalValueParameterNames(genericExecute, specialization.getNode().getGenericSpecialization(), specialization.getNode().getGenericSpecialization(), null, true, true); genericExecute.end(); // call generated generic CodeTree genericInvocation = genericExecute.getRoot(); if (generatedGeneric != null && Utils.isVoid(generatedGeneric.getReturnType())) { builder.statement(genericInvocation); if (!Utils.isVoid(builder.findMethod().asType())) { builder.startReturn().defaultValue(returnType.getPrimitiveType()).end(); } } else { builder.startReturn().tree(genericInvocation).end(); } } } }