Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: src/share/classes/com/sun/tools/javac/jvm/Target.java
src/share/classes/com/sun/tools/javac/jvm/Target.java
- changeset 1646
- a4913ea9bb62
- parent 1569
- 475eb15dfdad
- child 2525
- 2eb010b6cb22
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| 1645:97f6839673d6 | 1646:a4913ea9bb62 |
|---|---|
| 1 /* | 1 /* |
| 2 * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved. |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | 4 * |
| 5 * This code is free software; you can redistribute it and/or modify it | 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 | 6 * under the terms of the GNU General Public License version 2 only, as |
| 7 * published by the Free Software Foundation. Oracle designates this | 7 * published by the Free Software Foundation. Oracle designates this |
| 45 JDK1_2("1.2", 46, 0), | 45 JDK1_2("1.2", 46, 0), |
| 46 JDK1_3("1.3", 47, 0), | 46 JDK1_3("1.3", 47, 0), |
| 47 | 47 |
| 48 /** J2SE1.4 = Merlin. */ | 48 /** J2SE1.4 = Merlin. */ |
| 49 JDK1_4("1.4", 48, 0), | 49 JDK1_4("1.4", 48, 0), |
| 50 | |
| 51 /** Support for the JSR14 prototype compiler (targeting 1.4 VMs | |
| 52 * augmented with a few support classes). This is a transitional | |
| 53 * option that will not be supported in the product. */ | |
| 54 JSR14("jsr14", 48, 0), | |
| 55 | |
| 56 /** The following are undocumented transitional targets that we | |
| 57 * had used to test VM fixes in update releases. We do not | |
| 58 * promise to retain support for them. */ | |
| 59 JDK1_4_1("1.4.1", 48, 0), | |
| 60 JDK1_4_2("1.4.2", 48, 0), | |
| 61 | 50 |
| 62 /** Tiger. */ | 51 /** Tiger. */ |
| 63 JDK1_5("1.5", 49, 0), | 52 JDK1_5("1.5", 49, 0), |
| 64 | 53 |
| 65 /** JDK 6. */ | 54 /** JDK 6. */ |
| 173 */ | 162 */ |
| 174 public boolean interfaceObjectOverridesBinaryCompatibility() { | 163 public boolean interfaceObjectOverridesBinaryCompatibility() { |
| 175 return compareTo(JDK1_5) >= 0; | 164 return compareTo(JDK1_5) >= 0; |
| 176 } | 165 } |
| 177 | 166 |
| 178 /** Beginning in -target 1.4.2, we make synthetic variables | 167 /** Beginning in -target 1.5, we make synthetic variables |
| 179 * package-private instead of private. This is to prevent the | 168 * package-private instead of private. This is to prevent the |
| 180 * necessity of access methods, which effectively relax the | 169 * necessity of access methods, which effectively relax the |
| 181 * protection of the field but bloat the class files and affect | 170 * protection of the field but bloat the class files and affect |
| 182 * execution. | 171 * execution. |
| 183 */ | 172 */ |
| 184 public boolean usePrivateSyntheticFields() { | 173 public boolean usePrivateSyntheticFields() { |
| 185 return compareTo(JDK1_4_2) < 0; | 174 return compareTo(JDK1_5) < 0; |
| 186 } | 175 } |
| 187 | 176 |
| 188 /** Sometimes we need to create a field to cache a value like a | 177 /** Sometimes we need to create a field to cache a value like a |
| 189 * class literal of the assertions flag. In -target 1.4.2 and | 178 * class literal of the assertions flag. In -target 1.5 and |
| 190 * later we create a new synthetic class for this instead of | 179 * later we create a new synthetic class for this instead of |
| 191 * using the outermost class. See 4401576. | 180 * using the outermost class. See 4401576. |
| 192 */ | 181 */ |
| 193 public boolean useInnerCacheClass() { | 182 public boolean useInnerCacheClass() { |
| 194 return compareTo(JDK1_4_2) >= 0; | 183 return compareTo(JDK1_5) >= 0; |
| 195 } | 184 } |
| 196 | 185 |
| 197 /** Return true if cldc-style stack maps need to be generated. */ | 186 /** Return true if cldc-style stack maps need to be generated. */ |
| 198 public boolean generateCLDCStackmap() { | 187 public boolean generateCLDCStackmap() { |
| 199 return false; | 188 return false; |
| 274 /** Although we may not have support for class literals, should we | 263 /** Although we may not have support for class literals, should we |
| 275 * avoid initializing the class that the literal refers to? | 264 * avoid initializing the class that the literal refers to? |
| 276 * See 4468823 | 265 * See 4468823 |
| 277 */ | 266 */ |
| 278 public boolean classLiteralsNoInit() { | 267 public boolean classLiteralsNoInit() { |
| 279 return compareTo(JDK1_4_2) >= 0; | 268 return compareTo(JDK1_5) >= 0; |
| 280 } | 269 } |
| 281 | 270 |
| 282 /** Although we may not have support for class literals, when we | 271 /** Although we may not have support for class literals, when we |
| 283 * throw a NoClassDefFoundError, should we initialize its cause? | 272 * throw a NoClassDefFoundError, should we initialize its cause? |
| 284 */ | 273 */ |
| 298 */ | 287 */ |
| 299 public boolean hasIterable() { | 288 public boolean hasIterable() { |
| 300 return compareTo(JDK1_5) >= 0; | 289 return compareTo(JDK1_5) >= 0; |
| 301 } | 290 } |
| 302 | 291 |
| 303 /** For bootstrapping javac only, we do without java.lang.Enum if | |
| 304 * necessary. | |
| 305 */ | |
| 306 public boolean compilerBootstrap(Symbol c) { | |
| 307 return | |
| 308 this == JSR14 && | |
| 309 (c.flags() & Flags.ENUM) != 0 && | |
| 310 c.flatName().toString().startsWith("com.sun.tools.") | |
| 311 // && !Target.class.getSuperclass().getName().equals("java.lang.Enum") | |
| 312 ; | |
| 313 } | |
| 314 | |
| 315 /** In J2SE1.5.0, we introduced the "EnclosingMethod" attribute | 292 /** In J2SE1.5.0, we introduced the "EnclosingMethod" attribute |
| 316 * for improved reflection support. | 293 * for improved reflection support. |
| 317 */ | 294 */ |
| 318 public boolean hasEnclosingMethodAttribute() { | 295 public boolean hasEnclosingMethodAttribute() { |
| 319 return compareTo(JDK1_5) >= 0 || this == JSR14; | 296 return compareTo(JDK1_5) >= 0; |
| 320 } | 297 } |
| 321 } | 298 } |
