author | jjg |
Tue, 13 Jul 2010 19:14:09 -0700 | |
changeset 6143 | 79b7dee406cc |
parent 6030 | 8cb12024680d |
child 6575 | ae1798028008 |
permissions | -rw-r--r-- |
10 | 1 |
/* |
5520 | 2 |
* Copyright (c) 1999, 2009, Oracle and/or its affiliates. All rights reserved. |
10 | 3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 |
* |
|
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* This code is free software; you can redistribute it and/or modify it |
|
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* under the terms of the GNU General Public License version 2 only, as |
|
5520 | 7 |
* published by the Free Software Foundation. Oracle designates this |
10 | 8 |
* particular file as subject to the "Classpath" exception as provided |
5520 | 9 |
* by Oracle in the LICENSE file that accompanied this code. |
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* |
11 |
* This code is distributed in the hope that it will be useful, but WITHOUT |
|
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
14 |
* version 2 for more details (a copy is included in the LICENSE file that |
|
15 |
* accompanied this code). |
|
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* |
|
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* You should have received a copy of the GNU General Public License version |
|
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* 2 along with this work; if not, write to the Free Software Foundation, |
|
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
|
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* |
|
5520 | 21 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
22 |
* or visit www.oracle.com if you need additional information or have any |
|
23 |
* questions. |
|
10 | 24 |
*/ |
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26 |
package com.sun.tools.javac.jvm; |
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27 |
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28 |
import java.io.*; |
|
29 |
import java.util.Set; |
|
30 |
import java.util.HashSet; |
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31 |
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32 |
import javax.tools.JavaFileManager; |
|
33 |
import javax.tools.FileObject; |
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34 |
import javax.tools.JavaFileObject; |
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35 |
||
36 |
import com.sun.tools.javac.code.*; |
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37 |
import com.sun.tools.javac.code.Symbol.*; |
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import com.sun.tools.javac.code.Type.*; |
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import com.sun.tools.javac.file.BaseFileObject; |
10 | 40 |
import com.sun.tools.javac.util.*; |
41 |
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42 |
import static com.sun.tools.javac.code.BoundKind.*; |
|
43 |
import static com.sun.tools.javac.code.Flags.*; |
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44 |
import static com.sun.tools.javac.code.Kinds.*; |
|
45 |
import static com.sun.tools.javac.code.TypeTags.*; |
|
46 |
import static com.sun.tools.javac.jvm.UninitializedType.*; |
|
47 |
import static javax.tools.StandardLocation.CLASS_OUTPUT; |
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48 |
||
49 |
/** This class provides operations to map an internal symbol table graph |
|
50 |
* rooted in a ClassSymbol into a classfile. |
|
51 |
* |
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* <p><b>This is NOT part of any supported API. |
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* If you write code that depends on this, you do so at your own risk. |
10 | 54 |
* This code and its internal interfaces are subject to change or |
55 |
* deletion without notice.</b> |
|
56 |
*/ |
|
57 |
public class ClassWriter extends ClassFile { |
|
58 |
protected static final Context.Key<ClassWriter> classWriterKey = |
|
59 |
new Context.Key<ClassWriter>(); |
|
60 |
||
61 |
private final Symtab syms; |
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62 |
||
63 |
private final Options options; |
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64 |
||
3149 | 65 |
/** Switch: debugging output for JSR 308-related operations. |
66 |
*/ |
|
67 |
private boolean debugJSR308; |
|
68 |
||
10 | 69 |
/** Switch: verbose output. |
70 |
*/ |
|
71 |
private boolean verbose; |
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72 |
||
73 |
/** Switch: scrable private names. |
|
74 |
*/ |
|
75 |
private boolean scramble; |
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76 |
||
77 |
/** Switch: scrable private names. |
|
78 |
*/ |
|
79 |
private boolean scrambleAll; |
|
80 |
||
81 |
/** Switch: retrofit mode. |
|
82 |
*/ |
|
83 |
private boolean retrofit; |
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84 |
||
85 |
/** Switch: emit source file attribute. |
|
86 |
*/ |
|
87 |
private boolean emitSourceFile; |
|
88 |
||
89 |
/** Switch: generate CharacterRangeTable attribute. |
|
90 |
*/ |
|
91 |
private boolean genCrt; |
|
92 |
||
93 |
/** Switch: describe the generated stackmap |
|
94 |
*/ |
|
95 |
boolean debugstackmap; |
|
96 |
||
97 |
/** |
|
98 |
* Target class version. |
|
99 |
*/ |
|
100 |
private Target target; |
|
101 |
||
102 |
/** |
|
103 |
* Source language version. |
|
104 |
*/ |
|
105 |
private Source source; |
|
106 |
||
107 |
/** Type utilities. */ |
|
108 |
private Types types; |
|
109 |
||
110 |
/** The initial sizes of the data and constant pool buffers. |
|
111 |
* sizes are increased when buffers get full. |
|
112 |
*/ |
|
113 |
static final int DATA_BUF_SIZE = 0x0fff0; |
|
114 |
static final int POOL_BUF_SIZE = 0x1fff0; |
|
115 |
||
116 |
/** An output buffer for member info. |
|
117 |
*/ |
|
118 |
ByteBuffer databuf = new ByteBuffer(DATA_BUF_SIZE); |
|
119 |
||
120 |
/** An output buffer for the constant pool. |
|
121 |
*/ |
|
122 |
ByteBuffer poolbuf = new ByteBuffer(POOL_BUF_SIZE); |
|
123 |
||
124 |
/** An output buffer for type signatures. |
|
125 |
*/ |
|
126 |
ByteBuffer sigbuf = new ByteBuffer(); |
|
127 |
||
128 |
/** The constant pool. |
|
129 |
*/ |
|
130 |
Pool pool; |
|
131 |
||
132 |
/** The inner classes to be written, as a set. |
|
133 |
*/ |
|
134 |
Set<ClassSymbol> innerClasses; |
|
135 |
||
136 |
/** The inner classes to be written, as a queue where |
|
137 |
* enclosing classes come first. |
|
138 |
*/ |
|
139 |
ListBuffer<ClassSymbol> innerClassesQueue; |
|
140 |
||
141 |
/** The log to use for verbose output. |
|
142 |
*/ |
|
143 |
private final Log log; |
|
144 |
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145 |
/** The name table. */ |
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private final Names names; |
10 | 147 |
|
148 |
/** Access to files. */ |
|
149 |
private final JavaFileManager fileManager; |
|
150 |
||
151 |
/** The tags and constants used in compressed stackmap. */ |
|
152 |
static final int SAME_FRAME_SIZE = 64; |
|
153 |
static final int SAME_LOCALS_1_STACK_ITEM_EXTENDED = 247; |
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154 |
static final int SAME_FRAME_EXTENDED = 251; |
|
155 |
static final int FULL_FRAME = 255; |
|
156 |
static final int MAX_LOCAL_LENGTH_DIFF = 4; |
|
157 |
||
158 |
/** Get the ClassWriter instance for this context. */ |
|
159 |
public static ClassWriter instance(Context context) { |
|
160 |
ClassWriter instance = context.get(classWriterKey); |
|
161 |
if (instance == null) |
|
162 |
instance = new ClassWriter(context); |
|
163 |
return instance; |
|
164 |
} |
|
165 |
||
166 |
/** Construct a class writer, given an options table. |
|
167 |
*/ |
|
168 |
private ClassWriter(Context context) { |
|
169 |
context.put(classWriterKey, this); |
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170 |
||
171 |
log = Log.instance(context); |
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names = Names.instance(context); |
10 | 173 |
syms = Symtab.instance(context); |
174 |
options = Options.instance(context); |
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175 |
target = Target.instance(context); |
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176 |
source = Source.instance(context); |
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177 |
types = Types.instance(context); |
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178 |
fileManager = context.get(JavaFileManager.class); |
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179 |
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3149 | 180 |
debugJSR308 = options.get("TA:writer") != null; |
10 | 181 |
verbose = options.get("-verbose") != null; |
182 |
scramble = options.get("-scramble") != null; |
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183 |
scrambleAll = options.get("-scrambleAll") != null; |
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184 |
retrofit = options.get("-retrofit") != null; |
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185 |
genCrt = options.get("-Xjcov") != null; |
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186 |
debugstackmap = options.get("debugstackmap") != null; |
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187 |
||
188 |
emitSourceFile = options.get("-g:")==null || options.get("-g:source")!=null; |
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189 |
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190 |
String dumpModFlags = options.get("dumpmodifiers"); |
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191 |
dumpClassModifiers = |
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192 |
(dumpModFlags != null && dumpModFlags.indexOf('c') != -1); |
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193 |
dumpFieldModifiers = |
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194 |
(dumpModFlags != null && dumpModFlags.indexOf('f') != -1); |
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195 |
dumpInnerClassModifiers = |
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196 |
(dumpModFlags != null && dumpModFlags.indexOf('i') != -1); |
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197 |
dumpMethodModifiers = |
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198 |
(dumpModFlags != null && dumpModFlags.indexOf('m') != -1); |
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199 |
} |
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200 |
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201 |
/****************************************************************** |
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202 |
* Diagnostics: dump generated class names and modifiers |
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203 |
******************************************************************/ |
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204 |
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205 |
/** Value of option 'dumpmodifiers' is a string |
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206 |
* indicating which modifiers should be dumped for debugging: |
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207 |
* 'c' -- classes |
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208 |
* 'f' -- fields |
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209 |
* 'i' -- innerclass attributes |
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210 |
* 'm' -- methods |
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211 |
* For example, to dump everything: |
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212 |
* javac -XDdumpmodifiers=cifm MyProg.java |
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213 |
*/ |
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214 |
private final boolean dumpClassModifiers; // -XDdumpmodifiers=c |
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215 |
private final boolean dumpFieldModifiers; // -XDdumpmodifiers=f |
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216 |
private final boolean dumpInnerClassModifiers; // -XDdumpmodifiers=i |
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217 |
private final boolean dumpMethodModifiers; // -XDdumpmodifiers=m |
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218 |
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219 |
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220 |
/** Return flags as a string, separated by " ". |
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221 |
*/ |
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222 |
public static String flagNames(long flags) { |
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223 |
StringBuffer sbuf = new StringBuffer(); |
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224 |
int i = 0; |
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225 |
long f = flags & StandardFlags; |
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226 |
while (f != 0) { |
|
227 |
if ((f & 1) != 0) sbuf.append(" " + flagName[i]); |
|
228 |
f = f >> 1; |
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229 |
i++; |
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230 |
} |
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231 |
return sbuf.toString(); |
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232 |
} |
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233 |
//where |
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234 |
private final static String[] flagName = { |
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235 |
"PUBLIC", "PRIVATE", "PROTECTED", "STATIC", "FINAL", |
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236 |
"SUPER", "VOLATILE", "TRANSIENT", "NATIVE", "INTERFACE", |
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237 |
"ABSTRACT", "STRICTFP"}; |
|
238 |
||
239 |
/****************************************************************** |
|
240 |
* Output routines |
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241 |
******************************************************************/ |
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242 |
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243 |
/** Write a character into given byte buffer; |
|
244 |
* byte buffer will not be grown. |
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245 |
*/ |
|
246 |
void putChar(ByteBuffer buf, int op, int x) { |
|
247 |
buf.elems[op ] = (byte)((x >> 8) & 0xFF); |
|
248 |
buf.elems[op+1] = (byte)((x ) & 0xFF); |
|
249 |
} |
|
250 |
||
251 |
/** Write an integer into given byte buffer; |
|
252 |
* byte buffer will not be grown. |
|
253 |
*/ |
|
254 |
void putInt(ByteBuffer buf, int adr, int x) { |
|
255 |
buf.elems[adr ] = (byte)((x >> 24) & 0xFF); |
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256 |
buf.elems[adr+1] = (byte)((x >> 16) & 0xFF); |
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257 |
buf.elems[adr+2] = (byte)((x >> 8) & 0xFF); |
|
258 |
buf.elems[adr+3] = (byte)((x ) & 0xFF); |
|
259 |
} |
|
260 |
||
261 |
/****************************************************************** |
|
262 |
* Signature Generation |
|
263 |
******************************************************************/ |
|
264 |
||
265 |
/** Assemble signature of given type in string buffer. |
|
266 |
*/ |
|
267 |
void assembleSig(Type type) { |
|
268 |
switch (type.tag) { |
|
269 |
case BYTE: |
|
270 |
sigbuf.appendByte('B'); |
|
271 |
break; |
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272 |
case SHORT: |
|
273 |
sigbuf.appendByte('S'); |
|
274 |
break; |
|
275 |
case CHAR: |
|
276 |
sigbuf.appendByte('C'); |
|
277 |
break; |
|
278 |
case INT: |
|
279 |
sigbuf.appendByte('I'); |
|
280 |
break; |
|
281 |
case LONG: |
|
282 |
sigbuf.appendByte('J'); |
|
283 |
break; |
|
284 |
case FLOAT: |
|
285 |
sigbuf.appendByte('F'); |
|
286 |
break; |
|
287 |
case DOUBLE: |
|
288 |
sigbuf.appendByte('D'); |
|
289 |
break; |
|
290 |
case BOOLEAN: |
|
291 |
sigbuf.appendByte('Z'); |
|
292 |
break; |
|
293 |
case VOID: |
|
294 |
sigbuf.appendByte('V'); |
|
295 |
break; |
|
296 |
case CLASS: |
|
297 |
sigbuf.appendByte('L'); |
|
298 |
assembleClassSig(type); |
|
299 |
sigbuf.appendByte(';'); |
|
300 |
break; |
|
301 |
case ARRAY: |
|
302 |
ArrayType at = (ArrayType)type; |
|
303 |
sigbuf.appendByte('['); |
|
304 |
assembleSig(at.elemtype); |
|
305 |
break; |
|
306 |
case METHOD: |
|
307 |
MethodType mt = (MethodType)type; |
|
308 |
sigbuf.appendByte('('); |
|
309 |
assembleSig(mt.argtypes); |
|
310 |
sigbuf.appendByte(')'); |
|
311 |
assembleSig(mt.restype); |
|
312 |
if (hasTypeVar(mt.thrown)) { |
|
313 |
for (List<Type> l = mt.thrown; l.nonEmpty(); l = l.tail) { |
|
314 |
sigbuf.appendByte('^'); |
|
315 |
assembleSig(l.head); |
|
316 |
} |
|
317 |
} |
|
318 |
break; |
|
319 |
case WILDCARD: { |
|
320 |
WildcardType ta = (WildcardType) type; |
|
321 |
switch (ta.kind) { |
|
322 |
case SUPER: |
|
323 |
sigbuf.appendByte('-'); |
|
324 |
assembleSig(ta.type); |
|
325 |
break; |
|
326 |
case EXTENDS: |
|
327 |
sigbuf.appendByte('+'); |
|
328 |
assembleSig(ta.type); |
|
329 |
break; |
|
330 |
case UNBOUND: |
|
331 |
sigbuf.appendByte('*'); |
|
332 |
break; |
|
333 |
default: |
|
334 |
throw new AssertionError(ta.kind); |
|
335 |
} |
|
336 |
break; |
|
337 |
} |
|
338 |
case TYPEVAR: |
|
339 |
sigbuf.appendByte('T'); |
|
340 |
sigbuf.appendName(type.tsym.name); |
|
341 |
sigbuf.appendByte(';'); |
|
342 |
break; |
|
343 |
case FORALL: |
|
344 |
ForAll ft = (ForAll)type; |
|
345 |
assembleParamsSig(ft.tvars); |
|
346 |
assembleSig(ft.qtype); |
|
347 |
break; |
|
348 |
case UNINITIALIZED_THIS: |
|
349 |
case UNINITIALIZED_OBJECT: |
|
350 |
// we don't yet have a spec for uninitialized types in the |
|
351 |
// local variable table |
|
352 |
assembleSig(types.erasure(((UninitializedType)type).qtype)); |
|
353 |
break; |
|
354 |
default: |
|
355 |
throw new AssertionError("typeSig " + type.tag); |
|
356 |
} |
|
357 |
} |
|
358 |
||
359 |
boolean hasTypeVar(List<Type> l) { |
|
360 |
while (l.nonEmpty()) { |
|
361 |
if (l.head.tag == TypeTags.TYPEVAR) return true; |
|
362 |
l = l.tail; |
|
363 |
} |
|
364 |
return false; |
|
365 |
} |
|
366 |
||
367 |
void assembleClassSig(Type type) { |
|
368 |
ClassType ct = (ClassType)type; |
|
369 |
ClassSymbol c = (ClassSymbol)ct.tsym; |
|
370 |
enterInner(c); |
|
371 |
Type outer = ct.getEnclosingType(); |
|
372 |
if (outer.allparams().nonEmpty()) { |
|
373 |
boolean rawOuter = |
|
374 |
c.owner.kind == MTH || // either a local class |
|
375 |
c.name == names.empty; // or anonymous |
|
376 |
assembleClassSig(rawOuter |
|
377 |
? types.erasure(outer) |
|
378 |
: outer); |
|
379 |
sigbuf.appendByte('.'); |
|
380 |
assert c.flatname.startsWith(c.owner.enclClass().flatname); |
|
381 |
sigbuf.appendName(rawOuter |
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|
382 |
? c.flatname.subName(c.owner.enclClass().flatname.getByteLength()+1,c.flatname.getByteLength()) |
10 | 383 |
: c.name); |
384 |
} else { |
|
385 |
sigbuf.appendBytes(externalize(c.flatname)); |
|
386 |
} |
|
387 |
if (ct.getTypeArguments().nonEmpty()) { |
|
388 |
sigbuf.appendByte('<'); |
|
389 |
assembleSig(ct.getTypeArguments()); |
|
390 |
sigbuf.appendByte('>'); |
|
391 |
} |
|
392 |
} |
|
393 |
||
394 |
||
395 |
void assembleSig(List<Type> types) { |
|
396 |
for (List<Type> ts = types; ts.nonEmpty(); ts = ts.tail) |
|
397 |
assembleSig(ts.head); |
|
398 |
} |
|
399 |
||
400 |
void assembleParamsSig(List<Type> typarams) { |
|
401 |
sigbuf.appendByte('<'); |
|
402 |
for (List<Type> ts = typarams; ts.nonEmpty(); ts = ts.tail) { |
|
403 |
TypeVar tvar = (TypeVar)ts.head; |
|
404 |
sigbuf.appendName(tvar.tsym.name); |
|
405 |
List<Type> bounds = types.getBounds(tvar); |
|
406 |
if ((bounds.head.tsym.flags() & INTERFACE) != 0) { |
|
407 |
sigbuf.appendByte(':'); |
|
408 |
} |
|
409 |
for (List<Type> l = bounds; l.nonEmpty(); l = l.tail) { |
|
410 |
sigbuf.appendByte(':'); |
|
411 |
assembleSig(l.head); |
|
412 |
} |
|
413 |
} |
|
414 |
sigbuf.appendByte('>'); |
|
415 |
} |
|
416 |
||
417 |
/** Return signature of given type |
|
418 |
*/ |
|
419 |
Name typeSig(Type type) { |
|
420 |
assert sigbuf.length == 0; |
|
421 |
//- System.out.println(" ? " + type); |
|
422 |
assembleSig(type); |
|
423 |
Name n = sigbuf.toName(names); |
|
424 |
sigbuf.reset(); |
|
425 |
//- System.out.println(" " + n); |
|
426 |
return n; |
|
427 |
} |
|
428 |
||
429 |
/** Given a type t, return the extended class name of its erasure in |
|
430 |
* external representation. |
|
431 |
*/ |
|
432 |
public Name xClassName(Type t) { |
|
433 |
if (t.tag == CLASS) { |
|
434 |
return names.fromUtf(externalize(t.tsym.flatName())); |
|
435 |
} else if (t.tag == ARRAY) { |
|
436 |
return typeSig(types.erasure(t)); |
|
437 |
} else { |
|
438 |
throw new AssertionError("xClassName"); |
|
439 |
} |
|
440 |
} |
|
441 |
||
442 |
/****************************************************************** |
|
443 |
* Writing the Constant Pool |
|
444 |
******************************************************************/ |
|
445 |
||
446 |
/** Thrown when the constant pool is over full. |
|
447 |
*/ |
|
448 |
public static class PoolOverflow extends Exception { |
|
449 |
private static final long serialVersionUID = 0; |
|
450 |
public PoolOverflow() {} |
|
451 |
} |
|
452 |
public static class StringOverflow extends Exception { |
|
453 |
private static final long serialVersionUID = 0; |
|
454 |
public final String value; |
|
455 |
public StringOverflow(String s) { |
|
456 |
value = s; |
|
457 |
} |
|
458 |
} |
|
459 |
||
460 |
/** Write constant pool to pool buffer. |
|
461 |
* Note: during writing, constant pool |
|
462 |
* might grow since some parts of constants still need to be entered. |
|
463 |
*/ |
|
464 |
void writePool(Pool pool) throws PoolOverflow, StringOverflow { |
|
465 |
int poolCountIdx = poolbuf.length; |
|
466 |
poolbuf.appendChar(0); |
|
467 |
int i = 1; |
|
468 |
while (i < pool.pp) { |
|
469 |
Object value = pool.pool[i]; |
|
470 |
assert value != null; |
|
471 |
if (value instanceof Pool.Method) |
|
472 |
value = ((Pool.Method)value).m; |
|
473 |
else if (value instanceof Pool.Variable) |
|
474 |
value = ((Pool.Variable)value).v; |
|
475 |
||
476 |
if (value instanceof MethodSymbol) { |
|
477 |
MethodSymbol m = (MethodSymbol)value; |
|
478 |
poolbuf.appendByte((m.owner.flags() & INTERFACE) != 0 |
|
479 |
? CONSTANT_InterfaceMethodref |
|
480 |
: CONSTANT_Methodref); |
|
481 |
poolbuf.appendChar(pool.put(m.owner)); |
|
482 |
poolbuf.appendChar(pool.put(nameType(m))); |
|
483 |
} else if (value instanceof VarSymbol) { |
|
484 |
VarSymbol v = (VarSymbol)value; |
|
485 |
poolbuf.appendByte(CONSTANT_Fieldref); |
|
486 |
poolbuf.appendChar(pool.put(v.owner)); |
|
487 |
poolbuf.appendChar(pool.put(nameType(v))); |
|
488 |
} else if (value instanceof Name) { |
|
489 |
poolbuf.appendByte(CONSTANT_Utf8); |
|
490 |
byte[] bs = ((Name)value).toUtf(); |
|
491 |
poolbuf.appendChar(bs.length); |
|
492 |
poolbuf.appendBytes(bs, 0, bs.length); |
|
493 |
if (bs.length > Pool.MAX_STRING_LENGTH) |
|
494 |
throw new StringOverflow(value.toString()); |
|
495 |
} else if (value instanceof ClassSymbol) { |
|
496 |
ClassSymbol c = (ClassSymbol)value; |
|
497 |
if (c.owner.kind == TYP) pool.put(c.owner); |
|
498 |
poolbuf.appendByte(CONSTANT_Class); |
|
499 |
if (c.type.tag == ARRAY) { |
|
500 |
poolbuf.appendChar(pool.put(typeSig(c.type))); |
|
501 |
} else { |
|
502 |
poolbuf.appendChar(pool.put(names.fromUtf(externalize(c.flatname)))); |
|
503 |
enterInner(c); |
|
504 |
} |
|
505 |
} else if (value instanceof NameAndType) { |
|
506 |
NameAndType nt = (NameAndType)value; |
|
507 |
poolbuf.appendByte(CONSTANT_NameandType); |
|
508 |
poolbuf.appendChar(pool.put(nt.name)); |
|
509 |
poolbuf.appendChar(pool.put(typeSig(nt.type))); |
|
510 |
} else if (value instanceof Integer) { |
|
511 |
poolbuf.appendByte(CONSTANT_Integer); |
|
512 |
poolbuf.appendInt(((Integer)value).intValue()); |
|
513 |
} else if (value instanceof Long) { |
|
514 |
poolbuf.appendByte(CONSTANT_Long); |
|
515 |
poolbuf.appendLong(((Long)value).longValue()); |
|
516 |
i++; |
|
517 |
} else if (value instanceof Float) { |
|
518 |
poolbuf.appendByte(CONSTANT_Float); |
|
519 |
poolbuf.appendFloat(((Float)value).floatValue()); |
|
520 |
} else if (value instanceof Double) { |
|
521 |
poolbuf.appendByte(CONSTANT_Double); |
|
522 |
poolbuf.appendDouble(((Double)value).doubleValue()); |
|
523 |
i++; |
|
524 |
} else if (value instanceof String) { |
|
525 |
poolbuf.appendByte(CONSTANT_String); |
|
526 |
poolbuf.appendChar(pool.put(names.fromString((String)value))); |
|
527 |
} else if (value instanceof Type) { |
|
528 |
Type type = (Type)value; |
|
529 |
if (type.tag == CLASS) enterInner((ClassSymbol)type.tsym); |
|
530 |
poolbuf.appendByte(CONSTANT_Class); |
|
531 |
poolbuf.appendChar(pool.put(xClassName(type))); |
|
532 |
} else { |
|
533 |
assert false : "writePool " + value; |
|
534 |
} |
|
535 |
i++; |
|
536 |
} |
|
537 |
if (pool.pp > Pool.MAX_ENTRIES) |
|
538 |
throw new PoolOverflow(); |
|
539 |
putChar(poolbuf, poolCountIdx, pool.pp); |
|
540 |
} |
|
541 |
||
542 |
/** Given a field, return its name. |
|
543 |
*/ |
|
544 |
Name fieldName(Symbol sym) { |
|
545 |
if (scramble && (sym.flags() & PRIVATE) != 0 || |
|
546 |
scrambleAll && (sym.flags() & (PROTECTED | PUBLIC)) == 0) |
|
1260
a772ba9ba43d
6574134: Allow for alternative implementation of Name Table with garbage collection of name bytes
jjg
parents:
10
diff
changeset
|
547 |
return names.fromString("_$" + sym.name.getIndex()); |
10 | 548 |
else |
549 |
return sym.name; |
|
550 |
} |
|
551 |
||
552 |
/** Given a symbol, return its name-and-type. |
|
553 |
*/ |
|
554 |
NameAndType nameType(Symbol sym) { |
|
555 |
return new NameAndType(fieldName(sym), |
|
556 |
retrofit |
|
557 |
? sym.erasure(types) |
|
558 |
: sym.externalType(types)); |
|
559 |
// if we retrofit, then the NameAndType has been read in as is |
|
560 |
// and no change is necessary. If we compile normally, the |
|
561 |
// NameAndType is generated from a symbol reference, and the |
|
562 |
// adjustment of adding an additional this$n parameter needs to be made. |
|
563 |
} |
|
564 |
||
565 |
/****************************************************************** |
|
566 |
* Writing Attributes |
|
567 |
******************************************************************/ |
|
568 |
||
569 |
/** Write header for an attribute to data buffer and return |
|
570 |
* position past attribute length index. |
|
571 |
*/ |
|
572 |
int writeAttr(Name attrName) { |
|
573 |
databuf.appendChar(pool.put(attrName)); |
|
574 |
databuf.appendInt(0); |
|
575 |
return databuf.length; |
|
576 |
} |
|
577 |
||
578 |
/** Fill in attribute length. |
|
579 |
*/ |
|
580 |
void endAttr(int index) { |
|
581 |
putInt(databuf, index - 4, databuf.length - index); |
|
582 |
} |
|
583 |
||
584 |
/** Leave space for attribute count and return index for |
|
585 |
* number of attributes field. |
|
586 |
*/ |
|
587 |
int beginAttrs() { |
|
588 |
databuf.appendChar(0); |
|
589 |
return databuf.length; |
|
590 |
} |
|
591 |
||
592 |
/** Fill in number of attributes. |
|
593 |
*/ |
|
594 |
void endAttrs(int index, int count) { |
|
595 |
putChar(databuf, index - 2, count); |
|
596 |
} |
|
597 |
||
598 |
/** Write the EnclosingMethod attribute if needed. |
|
599 |
* Returns the number of attributes written (0 or 1). |
|
600 |
*/ |
|
601 |
int writeEnclosingMethodAttribute(ClassSymbol c) { |
|
602 |
if (!target.hasEnclosingMethodAttribute() || |
|
603 |
c.owner.kind != MTH && // neither a local class |
|
604 |
c.name != names.empty) // nor anonymous |
|
605 |
return 0; |
|
606 |
||
607 |
int alenIdx = writeAttr(names.EnclosingMethod); |
|
608 |
ClassSymbol enclClass = c.owner.enclClass(); |
|
609 |
MethodSymbol enclMethod = |
|
610 |
(c.owner.type == null // local to init block |
|
611 |
|| c.owner.kind != MTH) // or member init |
|
612 |
? null |
|
613 |
: (MethodSymbol)c.owner; |
|
614 |
databuf.appendChar(pool.put(enclClass)); |
|
615 |
databuf.appendChar(enclMethod == null ? 0 : pool.put(nameType(c.owner))); |
|
616 |
endAttr(alenIdx); |
|
617 |
return 1; |
|
618 |
} |
|
619 |
||
620 |
/** Write flag attributes; return number of attributes written. |
|
621 |
*/ |
|
622 |
int writeFlagAttrs(long flags) { |
|
623 |
int acount = 0; |
|
624 |
if ((flags & DEPRECATED) != 0) { |
|
625 |
int alenIdx = writeAttr(names.Deprecated); |
|
626 |
endAttr(alenIdx); |
|
627 |
acount++; |
|
628 |
} |
|
629 |
if ((flags & ENUM) != 0 && !target.useEnumFlag()) { |
|
630 |
int alenIdx = writeAttr(names.Enum); |
|
631 |
endAttr(alenIdx); |
|
632 |
acount++; |
|
633 |
} |
|
634 |
if ((flags & SYNTHETIC) != 0 && !target.useSyntheticFlag()) { |
|
635 |
int alenIdx = writeAttr(names.Synthetic); |
|
636 |
endAttr(alenIdx); |
|
637 |
acount++; |
|
638 |
} |
|
639 |
if ((flags & BRIDGE) != 0 && !target.useBridgeFlag()) { |
|
640 |
int alenIdx = writeAttr(names.Bridge); |
|
641 |
endAttr(alenIdx); |
|
642 |
acount++; |
|
643 |
} |
|
644 |
if ((flags & VARARGS) != 0 && !target.useVarargsFlag()) { |
|
645 |
int alenIdx = writeAttr(names.Varargs); |
|
646 |
endAttr(alenIdx); |
|
647 |
acount++; |
|
648 |
} |
|
649 |
if ((flags & ANNOTATION) != 0 && !target.useAnnotationFlag()) { |
|
650 |
int alenIdx = writeAttr(names.Annotation); |
|
651 |
endAttr(alenIdx); |
|
652 |
acount++; |
|
653 |
} |
|
5736
ee0850472ca1
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
4872
diff
changeset
|
654 |
if ((flags & POLYMORPHIC_SIGNATURE) != 0) { |
ee0850472ca1
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
4872
diff
changeset
|
655 |
if (target.majorVersion < 51) |
ee0850472ca1
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
4872
diff
changeset
|
656 |
throw new AssertionError("PolymorphicSignature attributes in java/dyn must be written with -target 7 (required major version is 51, current is"+target.majorVersion+")"); |
ee0850472ca1
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
4872
diff
changeset
|
657 |
int alenIdx = writeAttr(names.PolymorphicSignature); |
ee0850472ca1
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
4872
diff
changeset
|
658 |
endAttr(alenIdx); |
ee0850472ca1
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
4872
diff
changeset
|
659 |
acount++; |
ee0850472ca1
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
4872
diff
changeset
|
660 |
} |
10 | 661 |
return acount; |
662 |
} |
|
663 |
||
664 |
/** Write member (field or method) attributes; |
|
665 |
* return number of attributes written. |
|
666 |
*/ |
|
667 |
int writeMemberAttrs(Symbol sym) { |
|
668 |
int acount = writeFlagAttrs(sym.flags()); |
|
669 |
long flags = sym.flags(); |
|
670 |
if (source.allowGenerics() && |
|
671 |
(flags & (SYNTHETIC|BRIDGE)) != SYNTHETIC && |
|
672 |
(flags & ANONCONSTR) == 0 && |
|
673 |
(!types.isSameType(sym.type, sym.erasure(types)) || |
|
674 |
hasTypeVar(sym.type.getThrownTypes()))) { |
|
675 |
// note that a local class with captured variables |
|
676 |
// will get a signature attribute |
|
677 |
int alenIdx = writeAttr(names.Signature); |
|
678 |
databuf.appendChar(pool.put(typeSig(sym.type))); |
|
679 |
endAttr(alenIdx); |
|
680 |
acount++; |
|
681 |
} |
|
682 |
acount += writeJavaAnnotations(sym.getAnnotationMirrors()); |
|
3149 | 683 |
acount += writeTypeAnnotations(sym.typeAnnotations); |
10 | 684 |
return acount; |
685 |
} |
|
686 |
||
687 |
/** Write method parameter annotations; |
|
688 |
* return number of attributes written. |
|
689 |
*/ |
|
690 |
int writeParameterAttrs(MethodSymbol m) { |
|
691 |
boolean hasVisible = false; |
|
692 |
boolean hasInvisible = false; |
|
693 |
if (m.params != null) for (VarSymbol s : m.params) { |
|
694 |
for (Attribute.Compound a : s.getAnnotationMirrors()) { |
|
695 |
switch (getRetention(a.type.tsym)) { |
|
696 |
case SOURCE: break; |
|
697 |
case CLASS: hasInvisible = true; break; |
|
698 |
case RUNTIME: hasVisible = true; break; |
|
699 |
default: ;// /* fail soft */ throw new AssertionError(vis); |
|
700 |
} |
|
701 |
} |
|
702 |
} |
|
703 |
||
704 |
int attrCount = 0; |
|
705 |
if (hasVisible) { |
|
706 |
int attrIndex = writeAttr(names.RuntimeVisibleParameterAnnotations); |
|
707 |
databuf.appendByte(m.params.length()); |
|
708 |
for (VarSymbol s : m.params) { |
|
709 |
ListBuffer<Attribute.Compound> buf = new ListBuffer<Attribute.Compound>(); |
|
710 |
for (Attribute.Compound a : s.getAnnotationMirrors()) |
|
711 |
if (getRetention(a.type.tsym) == RetentionPolicy.RUNTIME) |
|
712 |
buf.append(a); |
|
713 |
databuf.appendChar(buf.length()); |
|
714 |
for (Attribute.Compound a : buf) |
|
715 |
writeCompoundAttribute(a); |
|
716 |
} |
|
717 |
endAttr(attrIndex); |
|
718 |
attrCount++; |
|
719 |
} |
|
720 |
if (hasInvisible) { |
|
721 |
int attrIndex = writeAttr(names.RuntimeInvisibleParameterAnnotations); |
|
722 |
databuf.appendByte(m.params.length()); |
|
723 |
for (VarSymbol s : m.params) { |
|
724 |
ListBuffer<Attribute.Compound> buf = new ListBuffer<Attribute.Compound>(); |
|
725 |
for (Attribute.Compound a : s.getAnnotationMirrors()) |
|
726 |
if (getRetention(a.type.tsym) == RetentionPolicy.CLASS) |
|
727 |
buf.append(a); |
|
728 |
databuf.appendChar(buf.length()); |
|
729 |
for (Attribute.Compound a : buf) |
|
730 |
writeCompoundAttribute(a); |
|
731 |
} |
|
732 |
endAttr(attrIndex); |
|
733 |
attrCount++; |
|
734 |
} |
|
735 |
return attrCount; |
|
736 |
} |
|
737 |
||
738 |
/********************************************************************** |
|
739 |
* Writing Java-language annotations (aka metadata, attributes) |
|
740 |
**********************************************************************/ |
|
741 |
||
742 |
/** Write Java-language annotations; return number of JVM |
|
743 |
* attributes written (zero or one). |
|
744 |
*/ |
|
745 |
int writeJavaAnnotations(List<Attribute.Compound> attrs) { |
|
746 |
if (attrs.isEmpty()) return 0; |
|
747 |
ListBuffer<Attribute.Compound> visibles = new ListBuffer<Attribute.Compound>(); |
|
748 |
ListBuffer<Attribute.Compound> invisibles = new ListBuffer<Attribute.Compound>(); |
|
749 |
for (Attribute.Compound a : attrs) { |
|
750 |
switch (getRetention(a.type.tsym)) { |
|
751 |
case SOURCE: break; |
|
752 |
case CLASS: invisibles.append(a); break; |
|
753 |
case RUNTIME: visibles.append(a); break; |
|
754 |
default: ;// /* fail soft */ throw new AssertionError(vis); |
|
755 |
} |
|
756 |
} |
|
757 |
||
758 |
int attrCount = 0; |
|
759 |
if (visibles.length() != 0) { |
|
760 |
int attrIndex = writeAttr(names.RuntimeVisibleAnnotations); |
|
761 |
databuf.appendChar(visibles.length()); |
|
762 |
for (Attribute.Compound a : visibles) |
|
763 |
writeCompoundAttribute(a); |
|
764 |
endAttr(attrIndex); |
|
765 |
attrCount++; |
|
766 |
} |
|
767 |
if (invisibles.length() != 0) { |
|
768 |
int attrIndex = writeAttr(names.RuntimeInvisibleAnnotations); |
|
769 |
databuf.appendChar(invisibles.length()); |
|
770 |
for (Attribute.Compound a : invisibles) |
|
771 |
writeCompoundAttribute(a); |
|
772 |
endAttr(attrIndex); |
|
773 |
attrCount++; |
|
774 |
} |
|
775 |
return attrCount; |
|
776 |
} |
|
777 |
||
3149 | 778 |
int writeTypeAnnotations(List<Attribute.TypeCompound> typeAnnos) { |
779 |
if (typeAnnos.isEmpty()) return 0; |
|
780 |
||
781 |
ListBuffer<Attribute.TypeCompound> visibles = ListBuffer.lb(); |
|
782 |
ListBuffer<Attribute.TypeCompound> invisibles = ListBuffer.lb(); |
|
783 |
||
784 |
for (Attribute.TypeCompound tc : typeAnnos) { |
|
3151
41800a86aad3
6854796: update JSR308 impl with latest code from type-annotations repo
jjg
parents:
3149
diff
changeset
|
785 |
if (tc.position.type == TargetType.UNKNOWN |
41800a86aad3
6854796: update JSR308 impl with latest code from type-annotations repo
jjg
parents:
3149
diff
changeset
|
786 |
|| !tc.position.emitToClassfile()) |
41800a86aad3
6854796: update JSR308 impl with latest code from type-annotations repo
jjg
parents:
3149
diff
changeset
|
787 |
continue; |
41800a86aad3
6854796: update JSR308 impl with latest code from type-annotations repo
jjg
parents:
3149
diff
changeset
|
788 |
switch (getRetention(tc.type.tsym)) { |
41800a86aad3
6854796: update JSR308 impl with latest code from type-annotations repo
jjg
parents:
3149
diff
changeset
|
789 |
case SOURCE: break; |
41800a86aad3
6854796: update JSR308 impl with latest code from type-annotations repo
jjg
parents:
3149
diff
changeset
|
790 |
case CLASS: invisibles.append(tc); break; |
41800a86aad3
6854796: update JSR308 impl with latest code from type-annotations repo
jjg
parents:
3149
diff
changeset
|
791 |
case RUNTIME: visibles.append(tc); break; |
41800a86aad3
6854796: update JSR308 impl with latest code from type-annotations repo
jjg
parents:
3149
diff
changeset
|
792 |
default: ;// /* fail soft */ throw new AssertionError(vis); |
3149 | 793 |
} |
794 |
} |
|
795 |
||
796 |
int attrCount = 0; |
|
797 |
if (visibles.length() != 0) { |
|
798 |
int attrIndex = writeAttr(names.RuntimeVisibleTypeAnnotations); |
|
799 |
databuf.appendChar(visibles.length()); |
|
800 |
for (Attribute.TypeCompound p : visibles) |
|
801 |
writeTypeAnnotation(p); |
|
802 |
endAttr(attrIndex); |
|
803 |
attrCount++; |
|
804 |
} |
|
805 |
||
806 |
if (invisibles.length() != 0) { |
|
807 |
int attrIndex = writeAttr(names.RuntimeInvisibleTypeAnnotations); |
|
808 |
databuf.appendChar(invisibles.length()); |
|
809 |
for (Attribute.TypeCompound p : invisibles) |
|
810 |
writeTypeAnnotation(p); |
|
811 |
endAttr(attrIndex); |
|
812 |
attrCount++; |
|
813 |
} |
|
814 |
||
815 |
return attrCount; |
|
816 |
} |
|
817 |
||
10 | 818 |
/** A mirror of java.lang.annotation.RetentionPolicy. */ |
819 |
enum RetentionPolicy { |
|
820 |
SOURCE, |
|
821 |
CLASS, |
|
822 |
RUNTIME |
|
823 |
} |
|
824 |
||
825 |
RetentionPolicy getRetention(TypeSymbol annotationType) { |
|
826 |
RetentionPolicy vis = RetentionPolicy.CLASS; // the default |
|
827 |
Attribute.Compound c = annotationType.attribute(syms.retentionType.tsym); |
|
828 |
if (c != null) { |
|
829 |
Attribute value = c.member(names.value); |
|
830 |
if (value != null && value instanceof Attribute.Enum) { |
|
831 |
Name levelName = ((Attribute.Enum)value).value.name; |
|
832 |
if (levelName == names.SOURCE) vis = RetentionPolicy.SOURCE; |
|
833 |
else if (levelName == names.CLASS) vis = RetentionPolicy.CLASS; |
|
834 |
else if (levelName == names.RUNTIME) vis = RetentionPolicy.RUNTIME; |
|
835 |
else ;// /* fail soft */ throw new AssertionError(levelName); |
|
836 |
} |
|
837 |
} |
|
838 |
return vis; |
|
839 |
} |
|
840 |
||
841 |
/** A visitor to write an attribute including its leading |
|
842 |
* single-character marker. |
|
843 |
*/ |
|
844 |
class AttributeWriter implements Attribute.Visitor { |
|
845 |
public void visitConstant(Attribute.Constant _value) { |
|
846 |
Object value = _value.value; |
|
847 |
switch (_value.type.tag) { |
|
848 |
case BYTE: |
|
849 |
databuf.appendByte('B'); |
|
850 |
break; |
|
851 |
case CHAR: |
|
852 |
databuf.appendByte('C'); |
|
853 |
break; |
|
854 |
case SHORT: |
|
855 |
databuf.appendByte('S'); |
|
856 |
break; |
|
857 |
case INT: |
|
858 |
databuf.appendByte('I'); |
|
859 |
break; |
|
860 |
case LONG: |
|
861 |
databuf.appendByte('J'); |
|
862 |
break; |
|
863 |
case FLOAT: |
|
864 |
databuf.appendByte('F'); |
|
865 |
break; |
|
866 |
case DOUBLE: |
|
867 |
databuf.appendByte('D'); |
|
868 |
break; |
|
869 |
case BOOLEAN: |
|
870 |
databuf.appendByte('Z'); |
|
871 |
break; |
|
872 |
case CLASS: |
|
873 |
assert value instanceof String; |
|
874 |
databuf.appendByte('s'); |
|
875 |
value = names.fromString(value.toString()); // CONSTANT_Utf8 |
|
876 |
break; |
|
877 |
default: |
|
878 |
throw new AssertionError(_value.type); |
|
879 |
} |
|
880 |
databuf.appendChar(pool.put(value)); |
|
881 |
} |
|
882 |
public void visitEnum(Attribute.Enum e) { |
|
883 |
databuf.appendByte('e'); |
|
884 |
databuf.appendChar(pool.put(typeSig(e.value.type))); |
|
885 |
databuf.appendChar(pool.put(e.value.name)); |
|
886 |
} |
|
887 |
public void visitClass(Attribute.Class clazz) { |
|
888 |
databuf.appendByte('c'); |
|
889 |
databuf.appendChar(pool.put(typeSig(clazz.type))); |
|
890 |
} |
|
891 |
public void visitCompound(Attribute.Compound compound) { |
|
892 |
databuf.appendByte('@'); |
|
893 |
writeCompoundAttribute(compound); |
|
894 |
} |
|
895 |
public void visitError(Attribute.Error x) { |
|
896 |
throw new AssertionError(x); |
|
897 |
} |
|
898 |
public void visitArray(Attribute.Array array) { |
|
899 |
databuf.appendByte('['); |
|
900 |
databuf.appendChar(array.values.length); |
|
901 |
for (Attribute a : array.values) { |
|
902 |
a.accept(this); |
|
903 |
} |
|
904 |
} |
|
905 |
} |
|
906 |
AttributeWriter awriter = new AttributeWriter(); |
|
907 |
||
908 |
/** Write a compound attribute excluding the '@' marker. */ |
|
909 |
void writeCompoundAttribute(Attribute.Compound c) { |
|
910 |
databuf.appendChar(pool.put(typeSig(c.type))); |
|
911 |
databuf.appendChar(c.values.length()); |
|
912 |
for (Pair<Symbol.MethodSymbol,Attribute> p : c.values) { |
|
913 |
databuf.appendChar(pool.put(p.fst.name)); |
|
914 |
p.snd.accept(awriter); |
|
915 |
} |
|
916 |
} |
|
917 |
||
3149 | 918 |
void writeTypeAnnotation(Attribute.TypeCompound c) { |
3151
41800a86aad3
6854796: update JSR308 impl with latest code from type-annotations repo
jjg
parents:
3149
diff
changeset
|
919 |
if (debugJSR308) |
41800a86aad3
6854796: update JSR308 impl with latest code from type-annotations repo
jjg
parents:
3149
diff
changeset
|
920 |
System.out.println("TA: writing " + c + " at " + c.position |
41800a86aad3
6854796: update JSR308 impl with latest code from type-annotations repo
jjg
parents:
3149
diff
changeset
|
921 |
+ " in " + log.currentSourceFile()); |
41800a86aad3
6854796: update JSR308 impl with latest code from type-annotations repo
jjg
parents:
3149
diff
changeset
|
922 |
writeCompoundAttribute(c); |
41800a86aad3
6854796: update JSR308 impl with latest code from type-annotations repo
jjg
parents:
3149
diff
changeset
|
923 |
writePosition(c.position); |
3149 | 924 |
} |
925 |
||
926 |
void writePosition(TypeAnnotationPosition p) { |
|
927 |
databuf.appendByte(p.type.targetTypeValue()); |
|
928 |
switch (p.type) { |
|
929 |
// type case |
|
930 |
case TYPECAST: |
|
931 |
case TYPECAST_GENERIC_OR_ARRAY: |
|
932 |
// object creation |
|
933 |
case INSTANCEOF: |
|
934 |
case INSTANCEOF_GENERIC_OR_ARRAY: |
|
935 |
// new expression |
|
936 |
case NEW: |
|
937 |
case NEW_GENERIC_OR_ARRAY: |
|
938 |
databuf.appendChar(p.offset); |
|
939 |
break; |
|
940 |
// local variable |
|
941 |
case LOCAL_VARIABLE: |
|
942 |
case LOCAL_VARIABLE_GENERIC_OR_ARRAY: |
|
943 |
databuf.appendChar(p.lvarOffset.length); // for table length |
|
944 |
for (int i = 0; i < p.lvarOffset.length; ++i) { |
|
945 |
databuf.appendChar(p.lvarOffset[i]); |
|
946 |
databuf.appendChar(p.lvarLength[i]); |
|
947 |
databuf.appendChar(p.lvarIndex[i]); |
|
948 |
} |
|
949 |
break; |
|
950 |
// method receiver |
|
951 |
case METHOD_RECEIVER: |
|
952 |
// Do nothing |
|
953 |
break; |
|
954 |
// type parameters |
|
955 |
case CLASS_TYPE_PARAMETER: |
|
956 |
case METHOD_TYPE_PARAMETER: |
|
957 |
databuf.appendByte(p.parameter_index); |
|
958 |
break; |
|
959 |
// type parameters bounds |
|
960 |
case CLASS_TYPE_PARAMETER_BOUND: |
|
961 |
case CLASS_TYPE_PARAMETER_BOUND_GENERIC_OR_ARRAY: |
|
962 |
case METHOD_TYPE_PARAMETER_BOUND: |
|
963 |
case METHOD_TYPE_PARAMETER_BOUND_GENERIC_OR_ARRAY: |
|
964 |
databuf.appendByte(p.parameter_index); |
|
965 |
databuf.appendByte(p.bound_index); |
|
966 |
break; |
|
967 |
// wildcards |
|
968 |
case WILDCARD_BOUND: |
|
969 |
case WILDCARD_BOUND_GENERIC_OR_ARRAY: |
|
970 |
writePosition(p.wildcard_position); |
|
971 |
break; |
|
972 |
// Class extends and implements clauses |
|
973 |
case CLASS_EXTENDS: |
|
974 |
case CLASS_EXTENDS_GENERIC_OR_ARRAY: |
|
4872
6c49b0ac56a6
6919986: [308] change size of type_index (of CLASS_EXTENDS and THROWS) from byte to short
jjg
parents:
3995
diff
changeset
|
975 |
databuf.appendChar(p.type_index); |
3149 | 976 |
break; |
977 |
// throws |
|
978 |
case THROWS: |
|
4872
6c49b0ac56a6
6919986: [308] change size of type_index (of CLASS_EXTENDS and THROWS) from byte to short
jjg
parents:
3995
diff
changeset
|
979 |
databuf.appendChar(p.type_index); |
3149 | 980 |
break; |
981 |
case CLASS_LITERAL: |
|
982 |
case CLASS_LITERAL_GENERIC_OR_ARRAY: |
|
983 |
databuf.appendChar(p.offset); |
|
984 |
break; |
|
985 |
// method parameter: not specified |
|
986 |
case METHOD_PARAMETER_GENERIC_OR_ARRAY: |
|
987 |
databuf.appendByte(p.parameter_index); |
|
988 |
break; |
|
989 |
// method type argument: wasn't specified |
|
990 |
case NEW_TYPE_ARGUMENT: |
|
991 |
case NEW_TYPE_ARGUMENT_GENERIC_OR_ARRAY: |
|
992 |
case METHOD_TYPE_ARGUMENT: |
|
993 |
case METHOD_TYPE_ARGUMENT_GENERIC_OR_ARRAY: |
|
994 |
databuf.appendChar(p.offset); |
|
995 |
databuf.appendByte(p.type_index); |
|
996 |
break; |
|
997 |
// We don't need to worry abut these |
|
998 |
case METHOD_RETURN_GENERIC_OR_ARRAY: |
|
999 |
case FIELD_GENERIC_OR_ARRAY: |
|
1000 |
break; |
|
1001 |
case UNKNOWN: |
|
1002 |
break; |
|
1003 |
default: |
|
1004 |
throw new AssertionError("unknown position: " + p); |
|
1005 |
} |
|
1006 |
||
1007 |
// Append location data for generics/arrays. |
|
1008 |
if (p.type.hasLocation()) { |
|
1009 |
databuf.appendChar(p.location.size()); |
|
1010 |
for (int i : p.location) |
|
1011 |
databuf.appendByte((byte)i); |
|
1012 |
} |
|
1013 |
} |
|
1014 |
||
10 | 1015 |
/********************************************************************** |
1016 |
* Writing Objects |
|
1017 |
**********************************************************************/ |
|
1018 |
||
1019 |
/** Enter an inner class into the `innerClasses' set/queue. |
|
1020 |
*/ |
|
1021 |
void enterInner(ClassSymbol c) { |
|
1022 |
assert !c.type.isCompound(); |
|
1023 |
try { |
|
1024 |
c.complete(); |
|
1025 |
} catch (CompletionFailure ex) { |
|
1026 |
System.err.println("error: " + c + ": " + ex.getMessage()); |
|
1027 |
throw ex; |
|
1028 |
} |
|
1029 |
if (c.type.tag != CLASS) return; // arrays |
|
1030 |
if (pool != null && // pool might be null if called from xClassName |
|
1031 |
c.owner.kind != PCK && |
|
1032 |
(innerClasses == null || !innerClasses.contains(c))) { |
|
1033 |
// log.errWriter.println("enter inner " + c);//DEBUG |
|
1034 |
if (c.owner.kind == TYP) enterInner((ClassSymbol)c.owner); |
|
1035 |
pool.put(c); |
|
1036 |
pool.put(c.name); |
|
1037 |
if (innerClasses == null) { |
|
1038 |
innerClasses = new HashSet<ClassSymbol>(); |
|
1039 |
innerClassesQueue = new ListBuffer<ClassSymbol>(); |
|
1040 |
pool.put(names.InnerClasses); |
|
1041 |
} |
|
1042 |
innerClasses.add(c); |
|
1043 |
innerClassesQueue.append(c); |
|
1044 |
} |
|
1045 |
} |
|
1046 |
||
1047 |
/** Write "inner classes" attribute. |
|
1048 |
*/ |
|
1049 |
void writeInnerClasses() { |
|
1050 |
int alenIdx = writeAttr(names.InnerClasses); |
|
1051 |
databuf.appendChar(innerClassesQueue.length()); |
|
1052 |
for (List<ClassSymbol> l = innerClassesQueue.toList(); |
|
1053 |
l.nonEmpty(); |
|
1054 |
l = l.tail) { |
|
1055 |
ClassSymbol inner = l.head; |
|
1056 |
char flags = (char) adjustFlags(inner.flags_field); |
|
1057 |
if ((flags & INTERFACE) != 0) flags |= ABSTRACT; // Interfaces are always ABSTRACT |
|
1058 |
if (inner.name.isEmpty()) flags &= ~FINAL; // Anonymous class: unset FINAL flag |
|
1059 |
if (dumpInnerClassModifiers) { |
|
1060 |
log.errWriter.println("INNERCLASS " + inner.name); |
|
1061 |
log.errWriter.println("---" + flagNames(flags)); |
|
1062 |
} |
|
1063 |
databuf.appendChar(pool.get(inner)); |
|
1064 |
databuf.appendChar( |
|
1065 |
inner.owner.kind == TYP ? pool.get(inner.owner) : 0); |
|
1066 |
databuf.appendChar( |
|
1260
a772ba9ba43d
6574134: Allow for alternative implementation of Name Table with garbage collection of name bytes
jjg
parents:
10
diff
changeset
|
1067 |
!inner.name.isEmpty() ? pool.get(inner.name) : 0); |
10 | 1068 |
databuf.appendChar(flags); |
1069 |
} |
|
1070 |
endAttr(alenIdx); |
|
1071 |
} |
|
1072 |
||
1073 |
/** Write field symbol, entering all references into constant pool. |
|
1074 |
*/ |
|
1075 |
void writeField(VarSymbol v) { |
|
1076 |
int flags = adjustFlags(v.flags()); |
|
1077 |
databuf.appendChar(flags); |
|
1078 |
if (dumpFieldModifiers) { |
|
1079 |
log.errWriter.println("FIELD " + fieldName(v)); |
|
1080 |
log.errWriter.println("---" + flagNames(v.flags())); |
|
1081 |
} |
|
1082 |
databuf.appendChar(pool.put(fieldName(v))); |
|
1083 |
databuf.appendChar(pool.put(typeSig(v.erasure(types)))); |
|
1084 |
int acountIdx = beginAttrs(); |
|
1085 |
int acount = 0; |
|
1086 |
if (v.getConstValue() != null) { |
|
1087 |
int alenIdx = writeAttr(names.ConstantValue); |
|
1088 |
databuf.appendChar(pool.put(v.getConstValue())); |
|
1089 |
endAttr(alenIdx); |
|
1090 |
acount++; |
|
1091 |
} |
|
1092 |
acount += writeMemberAttrs(v); |
|
1093 |
endAttrs(acountIdx, acount); |
|
1094 |
} |
|
1095 |
||
1096 |
/** Write method symbol, entering all references into constant pool. |
|
1097 |
*/ |
|
1098 |
void writeMethod(MethodSymbol m) { |
|
1099 |
int flags = adjustFlags(m.flags()); |
|
1100 |
databuf.appendChar(flags); |
|
1101 |
if (dumpMethodModifiers) { |
|
1102 |
log.errWriter.println("METHOD " + fieldName(m)); |
|
1103 |
log.errWriter.println("---" + flagNames(m.flags())); |
|
1104 |
} |
|
1105 |
databuf.appendChar(pool.put(fieldName(m))); |
|
1106 |
databuf.appendChar(pool.put(typeSig(m.externalType(types)))); |
|
1107 |
int acountIdx = beginAttrs(); |
|
1108 |
int acount = 0; |
|
1109 |
if (m.code != null) { |
|
1110 |
int alenIdx = writeAttr(names.Code); |
|
1111 |
writeCode(m.code); |
|
1112 |
m.code = null; // to conserve space |
|
1113 |
endAttr(alenIdx); |
|
1114 |
acount++; |
|
1115 |
} |
|
1116 |
List<Type> thrown = m.erasure(types).getThrownTypes(); |
|
1117 |
if (thrown.nonEmpty()) { |
|
1118 |
int alenIdx = writeAttr(names.Exceptions); |
|
1119 |
databuf.appendChar(thrown.length()); |
|
1120 |
for (List<Type> l = thrown; l.nonEmpty(); l = l.tail) |
|
1121 |
databuf.appendChar(pool.put(l.head.tsym)); |
|
1122 |
endAttr(alenIdx); |
|
1123 |
acount++; |
|
1124 |
} |
|
1125 |
if (m.defaultValue != null) { |
|
1126 |
int alenIdx = writeAttr(names.AnnotationDefault); |
|
1127 |
m.defaultValue.accept(awriter); |
|
1128 |
endAttr(alenIdx); |
|
1129 |
acount++; |
|
1130 |
} |
|
1131 |
acount += writeMemberAttrs(m); |
|
1132 |
acount += writeParameterAttrs(m); |
|
1133 |
endAttrs(acountIdx, acount); |
|
1134 |
} |
|
1135 |
||
1136 |
/** Write code attribute of method. |
|
1137 |
*/ |
|
1138 |
void writeCode(Code code) { |
|
1139 |
databuf.appendChar(code.max_stack); |
|
1140 |
databuf.appendChar(code.max_locals); |
|
1141 |
databuf.appendInt(code.cp); |
|
1142 |
databuf.appendBytes(code.code, 0, code.cp); |
|
1143 |
databuf.appendChar(code.catchInfo.length()); |
|
1144 |
for (List<char[]> l = code.catchInfo.toList(); |
|
1145 |
l.nonEmpty(); |
|
1146 |
l = l.tail) { |
|
1147 |
for (int i = 0; i < l.head.length; i++) |
|
1148 |
databuf.appendChar(l.head[i]); |
|
1149 |
} |
|
1150 |
int acountIdx = beginAttrs(); |
|
1151 |
int acount = 0; |
|
1152 |
||
1153 |
if (code.lineInfo.nonEmpty()) { |
|
1154 |
int alenIdx = writeAttr(names.LineNumberTable); |
|
1155 |
databuf.appendChar(code.lineInfo.length()); |
|
1156 |
for (List<char[]> l = code.lineInfo.reverse(); |
|
1157 |
l.nonEmpty(); |
|
1158 |
l = l.tail) |
|
1159 |
for (int i = 0; i < l.head.length; i++) |
|
1160 |
databuf.appendChar(l.head[i]); |
|
1161 |
endAttr(alenIdx); |
|
1162 |
acount++; |
|
1163 |
} |
|
1164 |
||
1165 |
if (genCrt && (code.crt != null)) { |
|
1166 |
CRTable crt = code.crt; |
|
1167 |
int alenIdx = writeAttr(names.CharacterRangeTable); |
|
1168 |
int crtIdx = beginAttrs(); |
|
1169 |
int crtEntries = crt.writeCRT(databuf, code.lineMap, log); |
|
1170 |
endAttrs(crtIdx, crtEntries); |
|
1171 |
endAttr(alenIdx); |
|
1172 |
acount++; |
|
1173 |
} |
|
1174 |
||
1175 |
// counter for number of generic local variables |
|
1176 |
int nGenericVars = 0; |
|
1177 |
||
1178 |
if (code.varBufferSize > 0) { |
|
1179 |
int alenIdx = writeAttr(names.LocalVariableTable); |
|
1180 |
databuf.appendChar(code.varBufferSize); |
|
1181 |
||
1182 |
for (int i=0; i<code.varBufferSize; i++) { |
|
1183 |
Code.LocalVar var = code.varBuffer[i]; |
|
1184 |
||
1185 |
// write variable info |
|
1186 |
assert var.start_pc >= 0; |
|
1187 |
assert var.start_pc <= code.cp; |
|
1188 |
databuf.appendChar(var.start_pc); |
|
1189 |
assert var.length >= 0; |
|
1190 |
assert (var.start_pc + var.length) <= code.cp; |
|
1191 |
databuf.appendChar(var.length); |
|
1192 |
VarSymbol sym = var.sym; |
|
1193 |
databuf.appendChar(pool.put(sym.name)); |
|
1194 |
Type vartype = sym.erasure(types); |
|
1195 |
if (!types.isSameType(sym.type, vartype)) |
|
1196 |
nGenericVars++; |
|
1197 |
databuf.appendChar(pool.put(typeSig(vartype))); |
|
1198 |
databuf.appendChar(var.reg); |
|
1199 |
} |
|
1200 |
endAttr(alenIdx); |
|
1201 |
acount++; |
|
1202 |
} |
|
1203 |
||
1204 |
if (nGenericVars > 0) { |
|
1205 |
int alenIdx = writeAttr(names.LocalVariableTypeTable); |
|
1206 |
databuf.appendChar(nGenericVars); |
|
1207 |
int count = 0; |
|
1208 |
||
1209 |
for (int i=0; i<code.varBufferSize; i++) { |
|
1210 |
Code.LocalVar var = code.varBuffer[i]; |
|
1211 |
VarSymbol sym = var.sym; |
|
1212 |
if (types.isSameType(sym.type, sym.erasure(types))) |
|
1213 |
continue; |
|
1214 |
count++; |
|
1215 |
// write variable info |
|
1216 |
databuf.appendChar(var.start_pc); |
|
1217 |
databuf.appendChar(var.length); |
|
1218 |
databuf.appendChar(pool.put(sym.name)); |
|
1219 |
databuf.appendChar(pool.put(typeSig(sym.type))); |
|
1220 |
databuf.appendChar(var.reg); |
|
1221 |
} |
|
1222 |
assert count == nGenericVars; |
|
1223 |
endAttr(alenIdx); |
|
1224 |
acount++; |
|
1225 |
} |
|
1226 |
||
1227 |
if (code.stackMapBufferSize > 0) { |
|
1228 |
if (debugstackmap) System.out.println("Stack map for " + code.meth); |
|
1229 |
int alenIdx = writeAttr(code.stackMap.getAttributeName(names)); |
|
1230 |
writeStackMap(code); |
|
1231 |
endAttr(alenIdx); |
|
1232 |
acount++; |
|
1233 |
} |
|
1234 |
endAttrs(acountIdx, acount); |
|
1235 |
} |
|
1236 |
||
1237 |
void writeStackMap(Code code) { |
|
1238 |
int nframes = code.stackMapBufferSize; |
|
1239 |
if (debugstackmap) System.out.println(" nframes = " + nframes); |
|
1240 |
databuf.appendChar(nframes); |
|
1241 |
||
1242 |
switch (code.stackMap) { |
|
1243 |
case CLDC: |
|
1244 |
for (int i=0; i<nframes; i++) { |
|
1245 |
if (debugstackmap) System.out.print(" " + i + ":"); |
|
1246 |
Code.StackMapFrame frame = code.stackMapBuffer[i]; |
|
1247 |
||
1248 |
// output PC |
|
1249 |
if (debugstackmap) System.out.print(" pc=" + frame.pc); |
|
1250 |
databuf.appendChar(frame.pc); |
|
1251 |
||
1252 |
// output locals |
|
1253 |
int localCount = 0; |
|
1254 |
for (int j=0; j<frame.locals.length; |
|
1255 |
j += (target.generateEmptyAfterBig() ? 1 : Code.width(frame.locals[j]))) { |
|
1256 |
localCount++; |
|
1257 |
} |
|
1258 |
if (debugstackmap) System.out.print(" nlocals=" + |
|
1259 |
localCount); |
|
1260 |
databuf.appendChar(localCount); |
|
1261 |
for (int j=0; j<frame.locals.length; |
|
1262 |
j += (target.generateEmptyAfterBig() ? 1 : Code.width(frame.locals[j]))) { |
|
1263 |
if (debugstackmap) System.out.print(" local[" + j + "]="); |
|
1264 |
writeStackMapType(frame.locals[j]); |
|
1265 |
} |
|
1266 |
||
1267 |
// output stack |
|
1268 |
int stackCount = 0; |
|
1269 |
for (int j=0; j<frame.stack.length; |
|
1270 |
j += (target.generateEmptyAfterBig() ? 1 : Code.width(frame.stack[j]))) { |
|
1271 |
stackCount++; |
|
1272 |
} |
|
1273 |
if (debugstackmap) System.out.print(" nstack=" + |
|
1274 |
stackCount); |
|
1275 |
databuf.appendChar(stackCount); |
|
1276 |
for (int j=0; j<frame.stack.length; |
|
1277 |
j += (target.generateEmptyAfterBig() ? 1 : Code.width(frame.stack[j]))) { |
|
1278 |
if (debugstackmap) System.out.print(" stack[" + j + "]="); |
|
1279 |
writeStackMapType(frame.stack[j]); |
|
1280 |
} |
|
1281 |
if (debugstackmap) System.out.println(); |
|
1282 |
} |
|
1283 |
break; |
|
1284 |
case JSR202: { |
|
1285 |
assert code.stackMapBuffer == null; |
|
1286 |
for (int i=0; i<nframes; i++) { |
|
1287 |
if (debugstackmap) System.out.print(" " + i + ":"); |
|
1288 |
StackMapTableFrame frame = code.stackMapTableBuffer[i]; |
|
1289 |
frame.write(this); |
|
1290 |
if (debugstackmap) System.out.println(); |
|
1291 |
} |
|
1292 |
break; |
|
1293 |
} |
|
1294 |
default: |
|
1295 |
throw new AssertionError("Unexpected stackmap format value"); |
|
1296 |
} |
|
1297 |
} |
|
1298 |
||
1299 |
//where |
|
1300 |
void writeStackMapType(Type t) { |
|
1301 |
if (t == null) { |
|
1302 |
if (debugstackmap) System.out.print("empty"); |
|
1303 |
databuf.appendByte(0); |
|
1304 |
} |
|
1305 |
else switch(t.tag) { |
|
1306 |
case BYTE: |
|
1307 |
case CHAR: |
|
1308 |
case SHORT: |
|
1309 |
case INT: |
|
1310 |
case BOOLEAN: |
|
1311 |
if (debugstackmap) System.out.print("int"); |
|
1312 |
databuf.appendByte(1); |
|
1313 |
break; |
|
1314 |
case FLOAT: |
|
1315 |
if (debugstackmap) System.out.print("float"); |
|
1316 |
databuf.appendByte(2); |
|
1317 |
break; |
|
1318 |
case DOUBLE: |
|
1319 |
if (debugstackmap) System.out.print("double"); |
|
1320 |
databuf.appendByte(3); |
|
1321 |
break; |
|
1322 |
case LONG: |
|
1323 |
if (debugstackmap) System.out.print("long"); |
|
1324 |
databuf.appendByte(4); |
|
1325 |
break; |
|
1326 |
case BOT: // null |
|
1327 |
if (debugstackmap) System.out.print("null"); |
|
1328 |
databuf.appendByte(5); |
|
1329 |
break; |
|
1330 |
case CLASS: |
|
1331 |
case ARRAY: |
|
1332 |
if (debugstackmap) System.out.print("object(" + t + ")"); |
|
1333 |
databuf.appendByte(7); |
|
1334 |
databuf.appendChar(pool.put(t)); |
|
1335 |
break; |
|
1336 |
case TYPEVAR: |
|
1337 |
if (debugstackmap) System.out.print("object(" + types.erasure(t).tsym + ")"); |
|
1338 |
databuf.appendByte(7); |
|
1339 |
databuf.appendChar(pool.put(types.erasure(t).tsym)); |
|
1340 |
break; |
|
1341 |
case UNINITIALIZED_THIS: |
|
1342 |
if (debugstackmap) System.out.print("uninit_this"); |
|
1343 |
databuf.appendByte(6); |
|
1344 |
break; |
|
1345 |
case UNINITIALIZED_OBJECT: |
|
1346 |
{ UninitializedType uninitType = (UninitializedType)t; |
|
1347 |
databuf.appendByte(8); |
|
1348 |
if (debugstackmap) System.out.print("uninit_object@" + uninitType.offset); |
|
1349 |
databuf.appendChar(uninitType.offset); |
|
1350 |
} |
|
1351 |
break; |
|
1352 |
default: |
|
1353 |
throw new AssertionError(); |
|
1354 |
} |
|
1355 |
} |
|
1356 |
||
1357 |
/** An entry in the JSR202 StackMapTable */ |
|
1358 |
abstract static class StackMapTableFrame { |
|
1359 |
abstract int getFrameType(); |
|
1360 |
||
1361 |
void write(ClassWriter writer) { |
|
1362 |
int frameType = getFrameType(); |
|
1363 |
writer.databuf.appendByte(frameType); |
|
1364 |
if (writer.debugstackmap) System.out.print(" frame_type=" + frameType); |
|
1365 |
} |
|
1366 |
||
1367 |
static class SameFrame extends StackMapTableFrame { |
|
1368 |
final int offsetDelta; |
|
1369 |
SameFrame(int offsetDelta) { |
|
1370 |
this.offsetDelta = offsetDelta; |
|
1371 |
} |
|
1372 |
int getFrameType() { |
|
1373 |
return (offsetDelta < SAME_FRAME_SIZE) ? offsetDelta : SAME_FRAME_EXTENDED; |
|
1374 |
} |
|
1375 |
@Override |
|
1376 |
void write(ClassWriter writer) { |
|
1377 |
super.write(writer); |
|
1378 |
if (getFrameType() == SAME_FRAME_EXTENDED) { |
|
1379 |
writer.databuf.appendChar(offsetDelta); |
|
1380 |
if (writer.debugstackmap){ |
|
1381 |
System.out.print(" offset_delta=" + offsetDelta); |
|
1382 |
} |
|
1383 |
} |
|
1384 |
} |
|
1385 |
} |
|
1386 |
||
1387 |
static class SameLocals1StackItemFrame extends StackMapTableFrame { |
|
1388 |
final int offsetDelta; |
|
1389 |
final Type stack; |
|
1390 |
SameLocals1StackItemFrame(int offsetDelta, Type stack) { |
|
1391 |
this.offsetDelta = offsetDelta; |
|
1392 |
this.stack = stack; |
|
1393 |
} |
|
1394 |
int getFrameType() { |
|
1395 |
return (offsetDelta < SAME_FRAME_SIZE) ? |
|
1396 |
(SAME_FRAME_SIZE + offsetDelta) : |
|
1397 |
SAME_LOCALS_1_STACK_ITEM_EXTENDED; |
|
1398 |
} |
|
1399 |
@Override |
|
1400 |
void write(ClassWriter writer) { |
|
1401 |
super.write(writer); |
|
1402 |
if (getFrameType() == SAME_LOCALS_1_STACK_ITEM_EXTENDED) { |
|
1403 |
writer.databuf.appendChar(offsetDelta); |
|
1404 |
if (writer.debugstackmap) { |
|
1405 |
System.out.print(" offset_delta=" + offsetDelta); |
|
1406 |
} |
|
1407 |
} |
|
1408 |
if (writer.debugstackmap) { |
|
1409 |
System.out.print(" stack[" + 0 + "]="); |
|
1410 |
} |
|
1411 |
writer.writeStackMapType(stack); |
|
1412 |
} |
|
1413 |
} |
|
1414 |
||
1415 |
static class ChopFrame extends StackMapTableFrame { |
|
1416 |
final int frameType; |
|
1417 |
final int offsetDelta; |
|
1418 |
ChopFrame(int frameType, int offsetDelta) { |
|
1419 |
this.frameType = frameType; |
|
1420 |
this.offsetDelta = offsetDelta; |
|
1421 |
} |
|
1422 |
int getFrameType() { return frameType; } |
|
1423 |
@Override |
|
1424 |
void write(ClassWriter writer) { |
|
1425 |
super.write(writer); |
|
1426 |
writer.databuf.appendChar(offsetDelta); |
|
1427 |
if (writer.debugstackmap) { |
|
1428 |
System.out.print(" offset_delta=" + offsetDelta); |
|
1429 |
} |
|
1430 |
} |
|
1431 |
} |
|
1432 |
||
1433 |
static class AppendFrame extends StackMapTableFrame { |
|
1434 |
final int frameType; |
|
1435 |
final int offsetDelta; |
|
1436 |
final Type[] locals; |
|
1437 |
AppendFrame(int frameType, int offsetDelta, Type[] locals) { |
|
1438 |
this.frameType = frameType; |
|
1439 |
this.offsetDelta = offsetDelta; |
|
1440 |
this.locals = locals; |
|
1441 |
} |
|
1442 |
int getFrameType() { return frameType; } |
|
1443 |
@Override |
|
1444 |
void write(ClassWriter writer) { |
|
1445 |
super.write(writer); |
|
1446 |
writer.databuf.appendChar(offsetDelta); |
|
1447 |
if (writer.debugstackmap) { |
|
1448 |
System.out.print(" offset_delta=" + offsetDelta); |
|
1449 |
} |
|
1450 |
for (int i=0; i<locals.length; i++) { |
|
1451 |
if (writer.debugstackmap) System.out.print(" locals[" + i + "]="); |
|
1452 |
writer.writeStackMapType(locals[i]); |
|
1453 |
} |
|
1454 |
} |
|
1455 |
} |
|
1456 |
||
1457 |
static class FullFrame extends StackMapTableFrame { |
|
1458 |
final int offsetDelta; |
|
1459 |
final Type[] locals; |
|
1460 |
final Type[] stack; |
|
1461 |
FullFrame(int offsetDelta, Type[] locals, Type[] stack) { |
|
1462 |
this.offsetDelta = offsetDelta; |
|
1463 |
this.locals = locals; |
|
1464 |
this.stack = stack; |
|
1465 |
} |
|
1466 |
int getFrameType() { return FULL_FRAME; } |
|
1467 |
@Override |
|
1468 |
void write(ClassWriter writer) { |
|
1469 |
super.write(writer); |
|
1470 |
writer.databuf.appendChar(offsetDelta); |
|
1471 |
writer.databuf.appendChar(locals.length); |
|
1472 |
if (writer.debugstackmap) { |
|
1473 |
System.out.print(" offset_delta=" + offsetDelta); |
|
1474 |
System.out.print(" nlocals=" + locals.length); |
|
1475 |
} |
|
1476 |
for (int i=0; i<locals.length; i++) { |
|
1477 |
if (writer.debugstackmap) System.out.print(" locals[" + i + "]="); |
|
1478 |
writer.writeStackMapType(locals[i]); |
|
1479 |
} |
|
1480 |
||
1481 |
writer.databuf.appendChar(stack.length); |
|
1482 |
if (writer.debugstackmap) { System.out.print(" nstack=" + stack.length); } |
|
1483 |
for (int i=0; i<stack.length; i++) { |
|
1484 |
if (writer.debugstackmap) System.out.print(" stack[" + i + "]="); |
|
1485 |
writer.writeStackMapType(stack[i]); |
|
1486 |
} |
|
1487 |
} |
|
1488 |
} |
|
1489 |
||
1490 |
/** Compare this frame with the previous frame and produce |
|
1491 |
* an entry of compressed stack map frame. */ |
|
1492 |
static StackMapTableFrame getInstance(Code.StackMapFrame this_frame, |
|
1493 |
int prev_pc, |
|
1494 |
Type[] prev_locals, |
|
1495 |
Types types) { |
|
1496 |
Type[] locals = this_frame.locals; |
|
1497 |
Type[] stack = this_frame.stack; |
|
1498 |
int offset_delta = this_frame.pc - prev_pc - 1; |
|
1499 |
if (stack.length == 1) { |
|
1500 |
if (locals.length == prev_locals.length |
|
1501 |
&& compare(prev_locals, locals, types) == 0) { |
|
1502 |
return new SameLocals1StackItemFrame(offset_delta, stack[0]); |
|
1503 |
} |
|
1504 |
} else if (stack.length == 0) { |
|
1505 |
int diff_length = compare(prev_locals, locals, types); |
|
1506 |
if (diff_length == 0) { |
|
1507 |
return new SameFrame(offset_delta); |
|
1508 |
} else if (-MAX_LOCAL_LENGTH_DIFF < diff_length && diff_length < 0) { |
|
1509 |
// APPEND |
|
1510 |
Type[] local_diff = new Type[-diff_length]; |
|
1511 |
for (int i=prev_locals.length, j=0; i<locals.length; i++,j++) { |
|
1512 |
local_diff[j] = locals[i]; |
|
1513 |
} |
|
1514 |
return new AppendFrame(SAME_FRAME_EXTENDED - diff_length, |
|
1515 |
offset_delta, |
|
1516 |
local_diff); |
|
1517 |
} else if (0 < diff_length && diff_length < MAX_LOCAL_LENGTH_DIFF) { |
|
1518 |
// CHOP |
|
1519 |
return new ChopFrame(SAME_FRAME_EXTENDED - diff_length, |
|
1520 |
offset_delta); |
|
1521 |
} |
|
1522 |
} |
|
1523 |
// FULL_FRAME |
|
1524 |
return new FullFrame(offset_delta, locals, stack); |
|
1525 |
} |
|
1526 |
||
1527 |
static boolean isInt(Type t) { |
|
1528 |
return (t.tag < TypeTags.INT || t.tag == TypeTags.BOOLEAN); |
|
1529 |
} |
|
1530 |
||
1531 |
static boolean isSameType(Type t1, Type t2, Types types) { |
|
1532 |
if (t1 == null) { return t2 == null; } |
|
1533 |
if (t2 == null) { return false; } |
|
1534 |
||
1535 |
if (isInt(t1) && isInt(t2)) { return true; } |
|
1536 |
||
1537 |
if (t1.tag == UNINITIALIZED_THIS) { |
|
1538 |
return t2.tag == UNINITIALIZED_THIS; |
|
1539 |
} else if (t1.tag == UNINITIALIZED_OBJECT) { |
|
1540 |
if (t2.tag == UNINITIALIZED_OBJECT) { |
|
1541 |
return ((UninitializedType)t1).offset == ((UninitializedType)t2).offset; |
|
1542 |
} else { |
|
1543 |
return false; |
|
1544 |
} |
|
1545 |
} else if (t2.tag == UNINITIALIZED_THIS || t2.tag == UNINITIALIZED_OBJECT) { |
|
1546 |
return false; |
|
1547 |
} |
|
1548 |
||
1549 |
return types.isSameType(t1, t2); |
|
1550 |
} |
|
1551 |
||
1552 |
static int compare(Type[] arr1, Type[] arr2, Types types) { |
|
1553 |
int diff_length = arr1.length - arr2.length; |
|
1554 |
if (diff_length > MAX_LOCAL_LENGTH_DIFF || diff_length < -MAX_LOCAL_LENGTH_DIFF) { |
|
1555 |
return Integer.MAX_VALUE; |
|
1556 |
} |
|
1557 |
int len = (diff_length > 0) ? arr2.length : arr1.length; |
|
1558 |
for (int i=0; i<len; i++) { |
|
1559 |
if (!isSameType(arr1[i], arr2[i], types)) { |
|
1560 |
return Integer.MAX_VALUE; |
|
1561 |
} |
|
1562 |
} |
|
1563 |
return diff_length; |
|
1564 |
} |
|
1565 |
} |
|
1566 |
||
1567 |
void writeFields(Scope.Entry e) { |
|
1568 |
// process them in reverse sibling order; |
|
1569 |
// i.e., process them in declaration order. |
|
1570 |
List<VarSymbol> vars = List.nil(); |
|
1571 |
for (Scope.Entry i = e; i != null; i = i.sibling) { |
|
1572 |
if (i.sym.kind == VAR) vars = vars.prepend((VarSymbol)i.sym); |
|
1573 |
} |
|
1574 |
while (vars.nonEmpty()) { |
|
1575 |
writeField(vars.head); |
|
1576 |
vars = vars.tail; |
|
1577 |
} |
|
1578 |
} |
|
1579 |
||
1580 |
void writeMethods(Scope.Entry e) { |
|
1581 |
List<MethodSymbol> methods = List.nil(); |
|
1582 |
for (Scope.Entry i = e; i != null; i = i.sibling) { |
|
1583 |
if (i.sym.kind == MTH && (i.sym.flags() & HYPOTHETICAL) == 0) |
|
1584 |
methods = methods.prepend((MethodSymbol)i.sym); |
|
1585 |
} |
|
1586 |
while (methods.nonEmpty()) { |
|
1587 |
writeMethod(methods.head); |
|
1588 |
methods = methods.tail; |
|
1589 |
} |
|
1590 |
} |
|
1591 |
||
1592 |
/** Emit a class file for a given class. |
|
1593 |
* @param c The class from which a class file is generated. |
|
1594 |
*/ |
|
1595 |
public JavaFileObject writeClass(ClassSymbol c) |
|
1596 |
throws IOException, PoolOverflow, StringOverflow |
|
1597 |
{ |
|
1598 |
JavaFileObject outFile |
|
1599 |
= fileManager.getJavaFileForOutput(CLASS_OUTPUT, |
|
1600 |
c.flatname.toString(), |
|
1601 |
JavaFileObject.Kind.CLASS, |
|
1602 |
c.sourcefile); |
|
1603 |
OutputStream out = outFile.openOutputStream(); |
|
1604 |
try { |
|
1605 |
writeClassFile(out, c); |
|
1606 |
if (verbose) |
|
6143
79b7dee406cc
6966732: replace use of static Log.getLocalizedString with non-static alternative where possible
jjg
parents:
6030
diff
changeset
|
1607 |
log.printErrLines("verbose.wrote.file", outFile); |
10 | 1608 |
out.close(); |
1609 |
out = null; |
|
1610 |
} finally { |
|
1611 |
if (out != null) { |
|
1612 |
// if we are propogating an exception, delete the file |
|
1613 |
out.close(); |
|
1614 |
outFile.delete(); |
|
1615 |
outFile = null; |
|
1616 |
} |
|
1617 |
} |
|
1618 |
return outFile; // may be null if write failed |
|
1619 |
} |
|
1620 |
||
1621 |
/** Write class `c' to outstream `out'. |
|
1622 |
*/ |
|
1623 |
public void writeClassFile(OutputStream out, ClassSymbol c) |
|
1624 |
throws IOException, PoolOverflow, StringOverflow { |
|
1625 |
assert (c.flags() & COMPOUND) == 0; |
|
1626 |
databuf.reset(); |
|
1627 |
poolbuf.reset(); |
|
1628 |
sigbuf.reset(); |
|
1629 |
pool = c.pool; |
|
1630 |
innerClasses = null; |
|
1631 |
innerClassesQueue = null; |
|
1632 |
||
1633 |
Type supertype = types.supertype(c.type); |
|
1634 |
List<Type> interfaces = types.interfaces(c.type); |
|
1635 |
List<Type> typarams = c.type.getTypeArguments(); |
|
1636 |
||
1637 |
int flags = adjustFlags(c.flags()); |
|
1638 |
if ((flags & PROTECTED) != 0) flags |= PUBLIC; |
|
1639 |
flags = flags & ClassFlags & ~STRICTFP; |
|
1640 |
if ((flags & INTERFACE) == 0) flags |= ACC_SUPER; |
|
1641 |
if (c.isInner() && c.name.isEmpty()) flags &= ~FINAL; |
|
1642 |
if (dumpClassModifiers) { |
|
1643 |
log.errWriter.println(); |
|
1644 |
log.errWriter.println("CLASSFILE " + c.getQualifiedName()); |
|
1645 |
log.errWriter.println("---" + flagNames(flags)); |
|
1646 |
} |
|
1647 |
databuf.appendChar(flags); |
|
1648 |
||
1649 |
databuf.appendChar(pool.put(c)); |
|
1650 |
databuf.appendChar(supertype.tag == CLASS ? pool.put(supertype.tsym) : 0); |
|
1651 |
databuf.appendChar(interfaces.length()); |
|
1652 |
for (List<Type> l = interfaces; l.nonEmpty(); l = l.tail) |
|
1653 |
databuf.appendChar(pool.put(l.head.tsym)); |
|
1654 |
int fieldsCount = 0; |
|
1655 |
int methodsCount = 0; |
|
1656 |
for (Scope.Entry e = c.members().elems; e != null; e = e.sibling) { |
|
1657 |
switch (e.sym.kind) { |
|
1658 |
case VAR: fieldsCount++; break; |
|
1659 |
case MTH: if ((e.sym.flags() & HYPOTHETICAL) == 0) methodsCount++; |
|
1660 |
break; |
|
1661 |
case TYP: enterInner((ClassSymbol)e.sym); break; |
|
1662 |
default : assert false; |
|
1663 |
} |
|
1664 |
} |
|
1665 |
databuf.appendChar(fieldsCount); |
|
1666 |
writeFields(c.members().elems); |
|
1667 |
databuf.appendChar(methodsCount); |
|
1668 |
writeMethods(c.members().elems); |
|
1669 |
||
1670 |
int acountIdx = beginAttrs(); |
|
1671 |
int acount = 0; |
|
1672 |
||
1673 |
boolean sigReq = |
|
3138
c9fe0e7472ac
6835430: javac does not generate signature attributes for classes extending parameterized inner classes
mcimadamore
parents:
1264
diff
changeset
|
1674 |
typarams.length() != 0 || supertype.allparams().length() != 0; |
10 | 1675 |
for (List<Type> l = interfaces; !sigReq && l.nonEmpty(); l = l.tail) |
3138
c9fe0e7472ac
6835430: javac does not generate signature attributes for classes extending parameterized inner classes
mcimadamore
parents:
1264
diff
changeset
|
1676 |
sigReq = l.head.allparams().length() != 0; |
10 | 1677 |
if (sigReq) { |
1678 |
assert source.allowGenerics(); |
|
1679 |
int alenIdx = writeAttr(names.Signature); |
|
1680 |
if (typarams.length() != 0) assembleParamsSig(typarams); |
|
1681 |
assembleSig(supertype); |
|
1682 |
for (List<Type> l = interfaces; l.nonEmpty(); l = l.tail) |
|
1683 |
assembleSig(l.head); |
|
1684 |
databuf.appendChar(pool.put(sigbuf.toName(names))); |
|
1685 |
sigbuf.reset(); |
|
1686 |
endAttr(alenIdx); |
|
1687 |
acount++; |
|
1688 |
} |
|
1689 |
||
1690 |
if (c.sourcefile != null && emitSourceFile) { |
|
1691 |
int alenIdx = writeAttr(names.SourceFile); |
|
1692 |
// WHM 6/29/1999: Strip file path prefix. We do it here at |
|
1693 |
// the last possible moment because the sourcefile may be used |
|
1694 |
// elsewhere in error diagnostics. Fixes 4241573. |
|
1695 |
//databuf.appendChar(c.pool.put(c.sourcefile)); |
|
3995
73af8b6fb8bc
6410637: Make decision on deprecated methods in DefaultFileManager and BaseFileObject.
jjg
parents:
3300
diff
changeset
|
1696 |
String simpleName = BaseFileObject.getSimpleName(c.sourcefile); |
73af8b6fb8bc
6410637: Make decision on deprecated methods in DefaultFileManager and BaseFileObject.
jjg
parents:
3300
diff
changeset
|
1697 |
databuf.appendChar(c.pool.put(names.fromString(simpleName))); |
10 | 1698 |
endAttr(alenIdx); |
1699 |
acount++; |
|
1700 |
} |
|
1701 |
||
1702 |
if (genCrt) { |
|
1703 |
// Append SourceID attribute |
|
1704 |
int alenIdx = writeAttr(names.SourceID); |
|
1705 |
databuf.appendChar(c.pool.put(names.fromString(Long.toString(getLastModified(c.sourcefile))))); |
|
1706 |
endAttr(alenIdx); |
|
1707 |
acount++; |
|
1708 |
// Append CompilationID attribute |
|
1709 |
alenIdx = writeAttr(names.CompilationID); |
|
1710 |
databuf.appendChar(c.pool.put(names.fromString(Long.toString(System.currentTimeMillis())))); |
|
1711 |
endAttr(alenIdx); |
|
1712 |
acount++; |
|
1713 |
} |
|
1714 |
||
1715 |
acount += writeFlagAttrs(c.flags()); |
|
1716 |
acount += writeJavaAnnotations(c.getAnnotationMirrors()); |
|
3149 | 1717 |
acount += writeTypeAnnotations(c.typeAnnotations); |
10 | 1718 |
acount += writeEnclosingMethodAttribute(c); |
1719 |
||
1720 |
poolbuf.appendInt(JAVA_MAGIC); |
|
1721 |
poolbuf.appendChar(target.minorVersion); |
|
1722 |
poolbuf.appendChar(target.majorVersion); |
|
1723 |
||
1724 |
writePool(c.pool); |
|
1725 |
||
1726 |
if (innerClasses != null) { |
|
1727 |
writeInnerClasses(); |
|
1728 |
acount++; |
|
1729 |
} |
|
1730 |
endAttrs(acountIdx, acount); |
|
1731 |
||
1732 |
poolbuf.appendBytes(databuf.elems, 0, databuf.length); |
|
1733 |
out.write(poolbuf.elems, 0, poolbuf.length); |
|
1734 |
||
1735 |
pool = c.pool = null; // to conserve space |
|
1736 |
} |
|
1737 |
||
1738 |
int adjustFlags(final long flags) { |
|
1739 |
int result = (int)flags; |
|
1740 |
if ((flags & SYNTHETIC) != 0 && !target.useSyntheticFlag()) |
|
1741 |
result &= ~SYNTHETIC; |
|
1742 |
if ((flags & ENUM) != 0 && !target.useEnumFlag()) |
|
1743 |
result &= ~ENUM; |
|
1744 |
if ((flags & ANNOTATION) != 0 && !target.useAnnotationFlag()) |
|
1745 |
result &= ~ANNOTATION; |
|
1746 |
||
1747 |
if ((flags & BRIDGE) != 0 && target.useBridgeFlag()) |
|
1748 |
result |= ACC_BRIDGE; |
|
1749 |
if ((flags & VARARGS) != 0 && target.useVarargsFlag()) |
|
1750 |
result |= ACC_VARARGS; |
|
1751 |
return result; |
|
1752 |
} |
|
1753 |
||
1754 |
long getLastModified(FileObject filename) { |
|
1755 |
long mod = 0; |
|
1756 |
try { |
|
1757 |
mod = filename.getLastModified(); |
|
1758 |
} catch (SecurityException e) { |
|
1759 |
throw new AssertionError("CRT: couldn't get source file modification date: " + e.getMessage()); |
|
1760 |
} |
|
1761 |
return mod; |
|
1762 |
} |
|
1763 |
} |