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comparison graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/generator/TypeSystemCodeGenerator.java @ 16759:23415229349b

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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/TypeSystemCodeGenerator.java@bd28da642eea
children 0370880ac9ce
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16758:c5f8eeb3cbc8 16759:23415229349b
1 /*
2 * Copyright (c) 2012, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package com.oracle.truffle.dsl.processor.generator;
24
25 import static com.oracle.truffle.dsl.processor.java.ElementUtils.*;
26 import static javax.lang.model.element.Modifier.*;
27
28 import java.util.*;
29
30 import javax.lang.model.type.*;
31
32 import com.oracle.truffle.dsl.processor.java.*;
33 import com.oracle.truffle.dsl.processor.java.model.*;
34 import com.oracle.truffle.dsl.processor.model.*;
35
36 public class TypeSystemCodeGenerator extends AbstractCompilationUnitFactory<TypeSystemData> {
37
38 public static String isTypeMethodName(TypeData type) {
39 return "is" + ElementUtils.getTypeId(type.getBoxedType());
40 }
41
42 public static String isImplicitTypeMethodName(TypeData type) {
43 return "isImplicit" + ElementUtils.getTypeId(type.getBoxedType());
44 }
45
46 public static String asTypeMethodName(TypeData type) {
47 return "as" + ElementUtils.getTypeId(type.getBoxedType());
48 }
49
50 public static String asImplicitTypeMethodName(TypeData type) {
51 return "asImplicit" + ElementUtils.getTypeId(type.getBoxedType());
52 }
53
54 public static String getImplicitClass(TypeData type) {
55 return "getImplicit" + ElementUtils.getTypeId(type.getBoxedType()) + "Class";
56 }
57
58 public static String expectTypeMethodName(TypeData type) {
59 return "expect" + ElementUtils.getTypeId(type.getBoxedType());
60 }
61
62 public static String typeName(TypeSystemData typeSystem) {
63 String name = getSimpleName(typeSystem.getTemplateType());
64 return name + "Gen";
65 }
66
67 public static String singletonName(TypeSystemData type) {
68 return createConstantName(getSimpleName(type.getTemplateType().asType()));
69 }
70
71 @Override
72 protected void createChildren(TypeSystemData m) {
73 add(new TypeClassFactory(), m);
74 }
75
76 private static class TypeClassFactory extends AbstractClassElementFactory<TypeSystemData> {
77
78 private static final String LOCAL_VALUE = "value";
79
80 @Override
81 public CodeTypeElement create(TypeSystemData typeSystem) {
82 String name = typeName(typeSystem);
83 CodeTypeElement clazz = createClass(typeSystem, modifiers(PUBLIC, FINAL), name, typeSystem.getTemplateType().asType(), false);
84
85 clazz.add(createConstructorUsingFields(modifiers(PROTECTED), clazz));
86 CodeVariableElement singleton = createSingleton(clazz);
87 clazz.add(singleton);
88
89 for (TypeData type : typeSystem.getTypes()) {
90 if (!type.isGeneric()) {
91 clazz.addOptional(createIsTypeMethod(type));
92 clazz.addOptional(createAsTypeMethod(type));
93
94 for (TypeData sourceType : collectExpectSourceTypes(type)) {
95 clazz.addOptional(createExpectTypeMethod(type, sourceType));
96 }
97
98 clazz.addOptional(createAsImplicitTypeMethod(type, true));
99 clazz.addOptional(createAsImplicitTypeMethod(type, false));
100 clazz.addOptional(createIsImplicitTypeMethod(type, true));
101 clazz.addOptional(createIsImplicitTypeMethod(type, false));
102 clazz.addOptional(createGetTypeIndex(type));
103 }
104 }
105
106 return clazz;
107 }
108
109 private static List<TypeData> collectExpectSourceTypes(TypeData type) {
110 Set<TypeData> sourceTypes = new HashSet<>();
111 sourceTypes.add(type.getTypeSystem().getGenericTypeData());
112 for (TypeCastData cast : type.getTypeCasts()) {
113 sourceTypes.add(cast.getSourceType());
114 }
115 for (TypeCheckData cast : type.getTypeChecks()) {
116 sourceTypes.add(cast.getCheckedType());
117 }
118 return new ArrayList<>(sourceTypes);
119 }
120
121 private CodeVariableElement createSingleton(CodeTypeElement clazz) {
122 CodeVariableElement field = new CodeVariableElement(modifiers(PUBLIC, STATIC, FINAL), clazz.asType(), singletonName(getModel()));
123 field.createInitBuilder().startNew(clazz.asType()).end();
124 return field;
125 }
126
127 private CodeExecutableElement createIsImplicitTypeMethod(TypeData type, boolean typed) {
128 TypeSystemData typeSystem = getModel();
129 List<ImplicitCastData> casts = typeSystem.lookupByTargetType(type);
130 if (casts.isEmpty()) {
131 return null;
132 }
133 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), getContext().getType(boolean.class), TypeSystemCodeGenerator.isImplicitTypeMethodName(type));
134 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE));
135 if (typed) {
136 method.addParameter(new CodeVariableElement(getContext().getType(Class.class), "typeHint"));
137 }
138 CodeTreeBuilder builder = method.createBuilder();
139
140 List<TypeData> sourceTypes = typeSystem.lookupSourceTypes(type);
141
142 builder.startReturn();
143 String sep = "";
144 for (TypeData sourceType : sourceTypes) {
145 builder.string(sep);
146 if (typed) {
147 builder.string("(typeHint == ").typeLiteral(sourceType.getPrimitiveType()).string(" && ");
148 }
149 builder.startCall(isTypeMethodName(sourceType)).string(LOCAL_VALUE).end();
150 if (typed) {
151 builder.string(")");
152 }
153 if (sourceTypes.lastIndexOf(sourceType) != sourceTypes.size() - 1) {
154 builder.newLine();
155 }
156 if (sep.equals("")) {
157 builder.startIndention();
158 }
159 sep = " || ";
160 }
161 builder.end();
162 builder.end();
163 return method;
164 }
165
166 private CodeExecutableElement createAsImplicitTypeMethod(TypeData type, boolean typed) {
167 TypeSystemData typeSystem = getModel();
168 List<ImplicitCastData> casts = typeSystem.lookupByTargetType(type);
169 if (casts.isEmpty()) {
170 return null;
171 }
172 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), type.getPrimitiveType(), TypeSystemCodeGenerator.asImplicitTypeMethodName(type));
173 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE));
174 if (typed) {
175 method.addParameter(new CodeVariableElement(getContext().getType(Class.class), "typeHint"));
176 }
177
178 List<TypeData> sourceTypes = typeSystem.lookupSourceTypes(type);
179
180 CodeTreeBuilder builder = method.createBuilder();
181 boolean elseIf = false;
182 for (TypeData sourceType : sourceTypes) {
183 elseIf = builder.startIf(elseIf);
184 if (typed) {
185 builder.string("typeHint == ").typeLiteral(sourceType.getPrimitiveType());
186 } else {
187 builder.startCall(isTypeMethodName(sourceType)).string(LOCAL_VALUE).end();
188 }
189
190 builder.end().startBlock();
191
192 builder.startReturn();
193 ImplicitCastData cast = typeSystem.lookupCast(sourceType, type);
194 if (cast != null) {
195 builder.startCall(cast.getMethodName());
196 }
197 builder.startCall(asTypeMethodName(sourceType)).string(LOCAL_VALUE).end();
198 if (cast != null) {
199 builder.end();
200 }
201 builder.end();
202 builder.end();
203 }
204
205 builder.startElseBlock();
206 builder.startStatement().startStaticCall(getContext().getTruffleTypes().getCompilerDirectives(), "transferToInterpreterAndInvalidate").end().end();
207 builder.startThrow().startNew(getContext().getType(IllegalArgumentException.class)).doubleQuote("Illegal type ").end().end();
208 builder.end();
209 return method;
210 }
211
212 private CodeExecutableElement createGetTypeIndex(TypeData type) {
213 TypeSystemData typeSystem = getModel();
214 List<ImplicitCastData> casts = typeSystem.lookupByTargetType(type);
215 if (casts.isEmpty()) {
216 return null;
217 }
218 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), getContext().getType(Class.class), TypeSystemCodeGenerator.getImplicitClass(type));
219 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE));
220
221 List<TypeData> sourceTypes = typeSystem.lookupSourceTypes(type);
222 CodeTreeBuilder builder = method.createBuilder();
223 boolean elseIf = false;
224 for (TypeData sourceType : sourceTypes) {
225 elseIf = builder.startIf(elseIf);
226 builder.startCall(isTypeMethodName(sourceType)).string(LOCAL_VALUE).end();
227 builder.end().startBlock();
228 builder.startReturn().typeLiteral(sourceType.getPrimitiveType()).end();
229 builder.end();
230 }
231
232 builder.startElseBlock();
233 builder.startStatement().startStaticCall(getContext().getTruffleTypes().getCompilerDirectives(), "transferToInterpreterAndInvalidate").end().end();
234 builder.startThrow().startNew(getContext().getType(IllegalArgumentException.class)).doubleQuote("Illegal type ").end().end();
235 builder.end();
236
237 return method;
238 }
239
240 private CodeExecutableElement createIsTypeMethod(TypeData type) {
241 if (!type.getTypeChecks().isEmpty()) {
242 return null;
243 }
244
245 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), getContext().getType(boolean.class), TypeSystemCodeGenerator.isTypeMethodName(type));
246 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE));
247
248 DeclaredType suppressWarnings = (DeclaredType) getContext().getType(SuppressWarnings.class);
249 CodeAnnotationMirror annotationMirror = new CodeAnnotationMirror(suppressWarnings);
250 annotationMirror.setElementValue(annotationMirror.findExecutableElement("value"), new CodeAnnotationValue("static-method"));
251 method.getAnnotationMirrors().add(annotationMirror);
252
253 CodeTreeBuilder body = method.createBuilder();
254 body.startReturn().instanceOf(LOCAL_VALUE, type.getBoxedType()).end();
255
256 return method;
257 }
258
259 private CodeExecutableElement createAsTypeMethod(TypeData type) {
260 if (!type.getTypeCasts().isEmpty()) {
261 return null;
262 }
263
264 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), type.getPrimitiveType(), TypeSystemCodeGenerator.asTypeMethodName(type));
265 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE));
266
267 CodeTreeBuilder body = method.createBuilder();
268 String assertMessage = typeName(getModel()) + "." + asTypeMethodName(type) + ": " + ElementUtils.getSimpleName(type.getBoxedType()) + " expected";
269 body.startAssert().startCall(isTypeMethodName(type)).string(LOCAL_VALUE).end().string(" : ").doubleQuote(assertMessage).end();
270 body.startReturn().cast(type.getPrimitiveType(), body.create().string(LOCAL_VALUE).getTree()).end();
271
272 return method;
273 }
274
275 private CodeExecutableElement createExpectTypeMethod(TypeData expectedType, TypeData sourceType) {
276 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), expectedType.getPrimitiveType(), TypeSystemCodeGenerator.expectTypeMethodName(expectedType));
277 method.addParameter(new CodeVariableElement(sourceType.getPrimitiveType(), LOCAL_VALUE));
278 method.addThrownType(getContext().getTruffleTypes().getUnexpectedValueException());
279
280 CodeTreeBuilder body = method.createBuilder();
281 body.startIf().startCall(TypeSystemCodeGenerator.isTypeMethodName(expectedType)).string(LOCAL_VALUE).end().end().startBlock();
282 body.startReturn().startCall(TypeSystemCodeGenerator.asTypeMethodName(expectedType)).string(LOCAL_VALUE).end().end();
283 body.end(); // if-block
284 body.startThrow().startNew(getContext().getTruffleTypes().getUnexpectedValueException()).string(LOCAL_VALUE).end().end();
285
286 return method;
287 }
288
289 }
290 }