Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/typesystem/TypeSystemCodeGenerator.java @ 11466:4830676526e3
Truffle-DSL: added infrastructure to assert for DSL error messages.
author | Christian Humer <christian.humer@gmail.com> |
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date | Thu, 29 Aug 2013 17:39:55 +0200 |
parents | b7f90ff38d4b |
children | 2fb276f5e3e9 |
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/* * 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.dsl.processor.typesystem; import static com.oracle.truffle.dsl.processor.Utils.*; import static javax.lang.model.element.Modifier.*; import java.util.*; import javax.lang.model.element.*; import javax.lang.model.type.*; import com.oracle.truffle.dsl.processor.*; import com.oracle.truffle.dsl.processor.ast.*; import com.oracle.truffle.dsl.processor.template.*; public class TypeSystemCodeGenerator extends CompilationUnitFactory<TypeSystemData> { public TypeSystemCodeGenerator(ProcessorContext context) { super(context); } public static String isTypeMethodName(TypeData type) { return "is" + Utils.getTypeId(type.getBoxedType()); } public static String asTypeMethodName(TypeData type) { return "as" + Utils.getTypeId(type.getBoxedType()); } public static String expectTypeMethodName(TypeData type) { return "expect" + Utils.getTypeId(type.getBoxedType()); } /** * Finds the generated singleton field for a TypeSytemData instance. TypeSystemCodeGenerator * must be applied to the TypeSystemData model before use. */ public static VariableElement findSingleton(ProcessorContext context, TypeSystemData typeSystem) { TypeMirror type = context.findGeneratedClassBySimpleName(TypeClassFactory.typeName(typeSystem), typeSystem); return Utils.findDeclaredField(type, TypeClassFactory.singletonName(typeSystem.getTemplateType().asType())); } @Override protected void createChildren(TypeSystemData m) { add(new TypeClassFactory(context), m); } protected static class TypeClassFactory extends ClassElementFactory<TypeSystemData> { private static final String LOCAL_VALUE = "value"; public TypeClassFactory(ProcessorContext context) { super(context); } @Override public CodeTypeElement create(TypeSystemData typeSystem) { String name = typeName(typeSystem); CodeTypeElement clazz = createClass(typeSystem, modifiers(PUBLIC, FINAL), name, typeSystem.getTemplateType().asType(), false); clazz.add(createConstructorUsingFields(modifiers(PROTECTED), clazz)); CodeVariableElement singleton = createSingleton(clazz); clazz.add(singleton); for (TypeData type : typeSystem.getTypes()) { if (!type.isGeneric()) { CodeExecutableElement isType = createIsTypeMethod(type); if (isType != null) { clazz.add(isType); } CodeExecutableElement asType = createAsTypeMethod(type); if (asType != null) { clazz.add(asType); } for (TypeData sourceType : collectExpectSourceTypes(type)) { CodeExecutableElement expect = createExpectTypeMethod(type, sourceType); if (expect != null) { clazz.add(expect); } } } } return clazz; } private static List<TypeData> collectExpectSourceTypes(TypeData type) { Set<TypeData> sourceTypes = new HashSet<>(); sourceTypes.add(type.getTypeSystem().getGenericTypeData()); for (TypeCastData cast : type.getTypeCasts()) { sourceTypes.add(cast.getSourceType()); } for (TypeCheckData cast : type.getTypeChecks()) { sourceTypes.add(cast.getCheckedType()); } return new ArrayList<>(sourceTypes); } private static String typeName(TypeSystemData typeSystem) { String name = getSimpleName(typeSystem.getTemplateType()); return name + "Gen"; } private static String singletonName(TypeMirror type) { return createConstantName(getSimpleName(type)); } private CodeVariableElement createSingleton(CodeTypeElement clazz) { CodeVariableElement field = new CodeVariableElement(modifiers(PUBLIC, STATIC, FINAL), clazz.asType(), singletonName(getModel().getTemplateType().asType())); field.createInitBuilder().startNew(clazz.asType()).end(); return field; } private CodeExecutableElement createIsTypeMethod(TypeData type) { if (!type.getTypeChecks().isEmpty()) { return null; } CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), getContext().getType(boolean.class), TypeSystemCodeGenerator.isTypeMethodName(type)); method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE)); DeclaredType suppressWarnings = (DeclaredType) getContext().getType(SuppressWarnings.class); CodeAnnotationMirror annotationMirror = new CodeAnnotationMirror(suppressWarnings); annotationMirror.setElementValue(annotationMirror.findExecutableElement("value"), new CodeAnnotationValue("static-method")); method.getAnnotationMirrors().add(annotationMirror); CodeTreeBuilder body = method.createBuilder(); body.startReturn().instanceOf(LOCAL_VALUE, type.getBoxedType()).end(); return method; } private CodeExecutableElement createAsTypeMethod(TypeData type) { if (!type.getTypeCasts().isEmpty()) { return null; } CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), type.getPrimitiveType(), TypeSystemCodeGenerator.asTypeMethodName(type)); method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE)); CodeTreeBuilder body = method.createBuilder(); String assertMessage = typeName(getModel()) + "." + asTypeMethodName(type) + ": " + Utils.getSimpleName(type.getBoxedType()) + " expected"; body.startAssert().startCall(isTypeMethodName(type)).string(LOCAL_VALUE).end().string(" : ").doubleQuote(assertMessage).end(); body.startReturn().cast(type.getPrimitiveType(), body.create().string(LOCAL_VALUE).getTree()).end(); return method; } private CodeExecutableElement createExpectTypeMethod(TypeData expectedType, TypeData sourceType) { CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), expectedType.getPrimitiveType(), TypeSystemCodeGenerator.expectTypeMethodName(expectedType)); method.addParameter(new CodeVariableElement(sourceType.getPrimitiveType(), LOCAL_VALUE)); method.addThrownType(getContext().getTruffleTypes().getUnexpectedValueException()); CodeTreeBuilder body = method.createBuilder(); body.startIf().startCall(null, TypeSystemCodeGenerator.isTypeMethodName(expectedType)).string(LOCAL_VALUE).end().end().startBlock(); body.startReturn().startCall(null, TypeSystemCodeGenerator.asTypeMethodName(expectedType)).string(LOCAL_VALUE).end().end(); body.end(); // if-block body.startThrow().startNew(getContext().getTruffleTypes().getUnexpectedValueException()).string(LOCAL_VALUE).end().end(); return method; } } }