Mercurial > hg > truffle
diff graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/parser/TypeCastParser.java @ 16759:23415229349b
Truffle-DSL: new package structure.
author | Christian Humer <christian.humer@gmail.com> |
---|---|
date | Mon, 11 Aug 2014 15:57:14 +0200 |
parents | graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/typesystem/TypeCastParser.java@43eab069ca9b |
children | 0370880ac9ce |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/parser/TypeCastParser.java Mon Aug 11 15:57:14 2014 +0200 @@ -0,0 +1,77 @@ +/* + * 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.parser; + +import java.lang.annotation.*; + +import javax.lang.model.element.*; + +import com.oracle.truffle.api.dsl.*; +import com.oracle.truffle.dsl.processor.*; +import com.oracle.truffle.dsl.processor.java.*; +import com.oracle.truffle.dsl.processor.model.*; + +class TypeCastParser extends TypeSystemMethodParser<TypeCastData> { + + public TypeCastParser(ProcessorContext context, TypeSystemData typeSystem) { + super(context, typeSystem); + } + + @Override + public MethodSpec createSpecification(ExecutableElement method, AnnotationMirror mirror) { + TypeData targetType = findTypeByMethodName(method.getSimpleName().toString(), "as"); + if (targetType == null) { + return null; + } + MethodSpec spec = new MethodSpec(new ParameterSpec("returnType", targetType.getPrimitiveType())); + spec.addRequired(new ParameterSpec("value", getTypeSystem().getPrimitiveTypeMirrors())); + return spec; + } + + @Override + public TypeCastData create(TemplateMethod method, boolean invalid) { + if (invalid) { + return new TypeCastData(method, null, null); + } + + TypeData targetType = findTypeByMethodName(method, "as"); + Parameter parameter = method.findParameter("valueValue"); + + TypeData sourceType = null; + if (parameter != null) { + sourceType = getTypeSystem().findTypeData(parameter.getType()); + } + TypeCastData cast = new TypeCastData(method, sourceType, targetType); + + if (targetType != method.getReturnType().getTypeSystemType()) { + cast.addError("Cast type %s does not match to the returned type %s.", ElementUtils.getSimpleName(targetType.getPrimitiveType()), + method.getReturnType() != null ? ElementUtils.getSimpleName(method.getReturnType().getTypeSystemType().getPrimitiveType()) : null); + } + return cast; + } + + @Override + public Class<? extends Annotation> getAnnotationType() { + return TypeCast.class; + } +}