Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: src/share/classes/com/sun/tools/javac/jvm/Items.java
src/share/classes/com/sun/tools/javac/jvm/Items.java
- changeset 816
- 7c537f4298fb
- parent 798
- 4868a36f6fd8
- child 820
- 2d5aff89aaa3
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| 815:d17f37522154 | 816:7c537f4298fb |
|---|---|
| 1 /* | 1 /* |
| 2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 1999, 2011, 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 |
| 24 */ | 24 */ |
| 25 | 25 |
| 26 package com.sun.tools.javac.jvm; | 26 package com.sun.tools.javac.jvm; |
| 27 | 27 |
| 28 import com.sun.tools.javac.code.*; | 28 import com.sun.tools.javac.code.*; |
| 29 | |
| 30 import com.sun.tools.javac.code.Symbol.*; | 29 import com.sun.tools.javac.code.Symbol.*; |
| 31 import com.sun.tools.javac.code.Type.*; | 30 import com.sun.tools.javac.code.Type.*; |
| 32 import com.sun.tools.javac.jvm.Code.*; | 31 import com.sun.tools.javac.jvm.Code.*; |
| 33 import com.sun.tools.javac.tree.JCTree; | 32 import com.sun.tools.javac.tree.JCTree; |
| 33 import com.sun.tools.javac.util.Assert; | |
| 34 | 34 |
| 35 import static com.sun.tools.javac.jvm.ByteCodes.*; | 35 import static com.sun.tools.javac.jvm.ByteCodes.*; |
| 36 | 36 |
| 37 /** A helper class for code generation. Items are objects | 37 /** A helper class for code generation. Items are objects |
| 38 * that stand for addressable entities in the bytecode. Each item | 38 * that stand for addressable entities in the bytecode. Each item |
| 385 */ | 385 */ |
| 386 Type type; | 386 Type type; |
| 387 | 387 |
| 388 LocalItem(Type type, int reg) { | 388 LocalItem(Type type, int reg) { |
| 389 super(Code.typecode(type)); | 389 super(Code.typecode(type)); |
| 390 assert reg >= 0; | 390 Assert.check(reg >= 0); |
| 391 this.type = type; | 391 this.type = type; |
| 392 this.reg = reg; | 392 this.reg = reg; |
| 393 } | 393 } |
| 394 | 394 |
| 395 Item load() { | 395 Item load() { |
| 467 /** An item representing a dynamic call site. | 467 /** An item representing a dynamic call site. |
| 468 */ | 468 */ |
| 469 class DynamicItem extends StaticItem { | 469 class DynamicItem extends StaticItem { |
| 470 DynamicItem(Symbol member) { | 470 DynamicItem(Symbol member) { |
| 471 super(member); | 471 super(member); |
| 472 assert member.owner == syms.invokeDynamicType.tsym; | 472 Assert.check(member.owner == syms.invokeDynamicType.tsym); |
| 473 } | 473 } |
| 474 | 474 |
| 475 Item load() { | 475 Item load() { |
| 476 assert false; | 476 Assert.error(); |
| 477 return null; | 477 return null; |
| 478 } | 478 } |
| 479 | 479 |
| 480 void store() { | 480 void store() { |
| 481 assert false; | 481 Assert.error(); |
| 482 } | 482 } |
| 483 | 483 |
| 484 Item invoke() { | 484 Item invoke() { |
| 485 // assert target.hasNativeInvokeDynamic(); | 485 // assert target.hasNativeInvokeDynamic(); |
| 486 MethodType mtype = (MethodType)member.erasure(types); | 486 MethodType mtype = (MethodType)member.erasure(types); |
| 618 break; | 618 break; |
| 619 case OBJECTcode: | 619 case OBJECTcode: |
| 620 ldc(); | 620 ldc(); |
| 621 break; | 621 break; |
| 622 default: | 622 default: |
| 623 assert false; | 623 Assert.error(); |
| 624 } | 624 } |
| 625 return stackItem[typecode]; | 625 return stackItem[typecode]; |
| 626 } | 626 } |
| 627 //where | 627 //where |
| 628 /** Return true iff float number is positive 0. | 628 /** Return true iff float number is positive 0. |
| 714 void drop() { | 714 void drop() { |
| 715 lhs.store(); | 715 lhs.store(); |
| 716 } | 716 } |
| 717 | 717 |
| 718 void stash(int toscode) { | 718 void stash(int toscode) { |
| 719 assert false; | 719 Assert.error(); |
| 720 } | 720 } |
| 721 | 721 |
| 722 int width() { | 722 int width() { |
| 723 return lhs.width() + Code.width(typecode); | 723 return lhs.width() + Code.width(typecode); |
| 724 } | 724 } |
| 782 void drop() { | 782 void drop() { |
| 783 load().drop(); | 783 load().drop(); |
| 784 } | 784 } |
| 785 | 785 |
| 786 void stash(int toscode) { | 786 void stash(int toscode) { |
| 787 assert false; | 787 Assert.error(); |
| 788 } | 788 } |
| 789 | 789 |
| 790 CondItem mkCond() { | 790 CondItem mkCond() { |
| 791 return this; | 791 return this; |
| 792 } | 792 } |
