23 * questions.
24 */
25
26 package com.sun.tools.javac.jvm;
27
28 import java.io.*;
29 import java.util.LinkedHashMap;
30 import java.util.Map;
31 import java.util.Set;
32 import java.util.LinkedHashSet;
33 import java.util.function.ToIntFunction;
34
35 import javax.tools.JavaFileManager;
36 import javax.tools.FileObject;
37 import javax.tools.JavaFileManager.Location;
38 import javax.tools.JavaFileObject;
39
40 import com.sun.tools.javac.code.*;
41 import com.sun.tools.javac.code.Attribute.RetentionPolicy;
42 import com.sun.tools.javac.code.Directive.*;
43 import com.sun.tools.javac.code.Source.Feature;
44 import com.sun.tools.javac.code.Symbol.*;
45 import com.sun.tools.javac.code.Type.*;
46 import com.sun.tools.javac.code.Types.SignatureGenerator.InvalidSignatureException;
47 import com.sun.tools.javac.comp.Check;
48 import com.sun.tools.javac.file.PathFileObject;
49 import com.sun.tools.javac.jvm.PoolConstant.LoadableConstant;
50 import com.sun.tools.javac.jvm.PoolConstant.Dynamic.BsmKey;
51 import com.sun.tools.javac.resources.CompilerProperties.Errors;
52 import com.sun.tools.javac.resources.CompilerProperties.Fragments;
53 import com.sun.tools.javac.util.*;
54 import com.sun.tools.javac.util.List;
55
56 import static com.sun.tools.javac.code.Flags.*;
57 import static com.sun.tools.javac.code.Kinds.Kind.*;
58 import static com.sun.tools.javac.code.Scope.LookupKind.NON_RECURSIVE;
59 import static com.sun.tools.javac.code.TypeTag.*;
60 import static com.sun.tools.javac.main.Option.*;
61
62 import static javax.tools.StandardLocation.CLASS_OUTPUT;
125
126 /** An output buffer for member info.
127 */
128 public ByteBuffer databuf = new ByteBuffer(DATA_BUF_SIZE);
129
130 /** An output buffer for the constant pool.
131 */
132 ByteBuffer poolbuf = new ByteBuffer(CLASS_BUF_SIZE);
133
134 /** The constant pool writer.
135 */
136 final PoolWriter poolWriter;
137
138 /** The log to use for verbose output.
139 */
140 private final Log log;
141
142 /** The name table. */
143 private final Names names;
144
145 /** Access to files. */
146 private final JavaFileManager fileManager;
147
148 /** The tags and constants used in compressed stackmap. */
149 static final int SAME_FRAME_SIZE = 64;
150 static final int SAME_LOCALS_1_STACK_ITEM_EXTENDED = 247;
151 static final int SAME_FRAME_EXTENDED = 251;
152 static final int FULL_FRAME = 255;
153 static final int MAX_LOCAL_LENGTH_DIFF = 4;
154
155 /** Get the ClassWriter instance for this context. */
156 public static ClassWriter instance(Context context) {
157 ClassWriter instance = context.get(classWriterKey);
158 if (instance == null)
159 instance = new ClassWriter(context);
160 return instance;
161 }
162
163 /** Construct a class writer, given an options table.
164 */
165 protected ClassWriter(Context context) {
166 context.put(classWriterKey, this);
167
168 log = Log.instance(context);
169 names = Names.instance(context);
170 options = Options.instance(context);
171 preview = Preview.instance(context);
172 target = Target.instance(context);
173 source = Source.instance(context);
174 types = Types.instance(context);
175 check = Check.instance(context);
176 fileManager = context.get(JavaFileManager.class);
177 poolWriter = Gen.instance(context).poolWriter;
178
179 verbose = options.isSet(VERBOSE);
180 genCrt = options.isSet(XJCOV);
181 debugstackmap = options.isSet("debug.stackmap");
182
183 emitSourceFile = options.isUnset(G_CUSTOM) ||
184 options.isSet(G_CUSTOM, "source");
185
186 String modifierFlags = options.get("debug.dumpmodifiers");
187 if (modifierFlags != null) {
188 dumpClassModifiers = modifierFlags.indexOf('c') != -1;
189 dumpFieldModifiers = modifierFlags.indexOf('f') != -1;
190 dumpInnerClassModifiers = modifierFlags.indexOf('i') != -1;
191 dumpMethodModifiers = modifierFlags.indexOf('m') != -1;
192 }
193 }
194
195 public void addExtraAttributes(ToIntFunction<Symbol> addExtraAttributes) {
196 extraAttributeHooks = extraAttributeHooks.prepend(addExtraAttributes);
197 }
808 databuf.appendChar(poolWriter.putClass(srvc));
809 databuf.appendChar(impls.size());
810 impls.forEach(impl -> databuf.appendChar(poolWriter.putClass(impl)));
811 });
812
813 endAttr(alenIdx);
814 return 1;
815 }
816
817 /**********************************************************************
818 * Writing Objects
819 **********************************************************************/
820
821 /** Write "inner classes" attribute.
822 */
823 void writeInnerClasses() {
824 int alenIdx = writeAttr(names.InnerClasses);
825 databuf.appendChar(poolWriter.innerClasses.size());
826 for (ClassSymbol inner : poolWriter.innerClasses) {
827 inner.markAbstractIfNeeded(types);
828 char flags = (char) adjustFlags(inner.flags_field);
829 if ((flags & INTERFACE) != 0) flags |= ABSTRACT; // Interfaces are always ABSTRACT
830 flags &= ~STRICTFP; //inner classes should not have the strictfp flag set.
831 if (dumpInnerClassModifiers) {
832 PrintWriter pw = log.getWriter(Log.WriterKind.ERROR);
833 pw.println("INNERCLASS " + inner.name);
834 pw.println("---" + flagNames(flags));
835 }
836 databuf.appendChar(poolWriter.putClass(inner));
837 databuf.appendChar(
838 inner.owner.kind == TYP && !inner.name.isEmpty() ? poolWriter.putClass((ClassSymbol)inner.owner) : 0);
839 databuf.appendChar(
840 !inner.name.isEmpty() ? poolWriter.putName(inner.name) : 0);
841 databuf.appendChar(flags);
842 }
843 endAttr(alenIdx);
844 }
845
846 int writeRecordAttribute(ClassSymbol csym) {
847 int alenIdx = writeAttr(names.Record);
848 Scope s = csym.members();
849 databuf.appendChar(csym.getRecordComponents().size());
850 for (VarSymbol v: csym.getRecordComponents()) {
851 //databuf.appendChar(poolWriter.putMember(v.accessor.head.snd));
852 databuf.appendChar(poolWriter.putName(v.name));
853 databuf.appendChar(poolWriter.putDescriptor(v));
854 int acountIdx = beginAttrs();
855 int acount = 0;
856 acount += writeMemberAttrs(v, true);
857 endAttrs(acountIdx, acount);
858 }
859 endAttr(alenIdx);
860 return 1;
861 }
862
863 /**
864 * Write NestMembers attribute (if needed)
865 */
988 writeCode(m.code);
989 m.code = null; // to conserve space
990 endAttr(alenIdx);
991 acount++;
992 }
993 List<Type> thrown = m.erasure(types).getThrownTypes();
994 if (thrown.nonEmpty()) {
995 int alenIdx = writeAttr(names.Exceptions);
996 databuf.appendChar(thrown.length());
997 for (List<Type> l = thrown; l.nonEmpty(); l = l.tail)
998 databuf.appendChar(poolWriter.putClass(l.head));
999 endAttr(alenIdx);
1000 acount++;
1001 }
1002 if (m.defaultValue != null) {
1003 int alenIdx = writeAttr(names.AnnotationDefault);
1004 m.defaultValue.accept(awriter);
1005 endAttr(alenIdx);
1006 acount++;
1007 }
1008 if (target.hasMethodParameters() && (options.isSet(PARAMETERS) || m.isConstructor() && (m.flags_field & RECORD) != 0)) {
1009 if (!m.isLambdaMethod()) // Per JDK-8138729, do not emit parameters table for lambda bodies.
1010 acount += writeMethodParametersAttr(m);
1011 }
1012 acount += writeMemberAttrs(m, false);
1013 if (!m.isLambdaMethod())
1014 acount += writeParameterAttrs(m.params);
1015 acount += writeExtraAttributes(m);
1016 endAttrs(acountIdx, acount);
1017 }
1018
1019 /** Write code attribute of method.
1020 */
1021 void writeCode(Code code) {
1022 databuf.appendChar(code.max_stack);
1023 databuf.appendChar(code.max_locals);
1024 databuf.appendInt(code.cp);
1025 databuf.appendBytes(code.code, 0, code.cp);
1026 databuf.appendChar(code.catchInfo.length());
1027 for (List<char[]> l = code.catchInfo.toList();
1028 l.nonEmpty();
1208 databuf.appendByte(1);
1209 break;
1210 case FLOAT:
1211 if (debugstackmap) System.out.print("float");
1212 databuf.appendByte(2);
1213 break;
1214 case DOUBLE:
1215 if (debugstackmap) System.out.print("double");
1216 databuf.appendByte(3);
1217 break;
1218 case LONG:
1219 if (debugstackmap) System.out.print("long");
1220 databuf.appendByte(4);
1221 break;
1222 case BOT: // null
1223 if (debugstackmap) System.out.print("null");
1224 databuf.appendByte(5);
1225 break;
1226 case CLASS:
1227 case ARRAY:
1228 case TYPEVAR:
1229 if (debugstackmap) System.out.print("object(" + types.erasure(t).tsym + ")");
1230 databuf.appendByte(7);
1231 databuf.appendChar(poolWriter.putClass(types.erasure(t)));
1232 break;
1233 case UNINITIALIZED_THIS:
1234 if (debugstackmap) System.out.print("uninit_this");
1235 databuf.appendByte(6);
1236 break;
1237 case UNINITIALIZED_OBJECT:
1238 { UninitializedType uninitType = (UninitializedType)t;
1239 databuf.appendByte(8);
1240 if (debugstackmap) System.out.print("uninit_object@" + uninitType.offset);
1241 databuf.appendChar(uninitType.offset);
1242 }
1243 break;
1244 default:
1245 throw new AssertionError();
1246 }
1247 }
1519 }
1520 return outFile; // may be null if write failed
1521 }
1522
1523 /** Write class `c' to outstream `out'.
1524 */
1525 public void writeClassFile(OutputStream out, ClassSymbol c)
1526 throws IOException, PoolOverflow, StringOverflow {
1527 Assert.check((c.flags() & COMPOUND) == 0);
1528 databuf.reset();
1529 poolbuf.reset();
1530
1531 Type supertype = types.supertype(c.type);
1532 List<Type> interfaces = types.interfaces(c.type);
1533 List<Type> typarams = c.type.getTypeArguments();
1534
1535 int flags;
1536 if (c.owner.kind == MDL) {
1537 flags = ACC_MODULE;
1538 } else {
1539 flags = adjustFlags(c.flags() & ~DEFAULT);
1540 if ((flags & PROTECTED) != 0) flags |= PUBLIC;
1541 flags = flags & ClassFlags & ~STRICTFP;
1542 if ((flags & INTERFACE) == 0) flags |= ACC_SUPER;
1543 }
1544
1545 if (dumpClassModifiers) {
1546 PrintWriter pw = log.getWriter(Log.WriterKind.ERROR);
1547 pw.println();
1548 pw.println("CLASSFILE " + c.getQualifiedName());
1549 pw.println("---" + flagNames(flags));
1550 }
1551 databuf.appendChar(flags);
1552
1553 if (c.owner.kind == MDL) {
1554 PackageSymbol unnamed = ((ModuleSymbol) c.owner).unnamedPackage;
1555 databuf.appendChar(poolWriter.putClass(new ClassSymbol(0, names.module_info, unnamed)));
1556 } else {
1557 databuf.appendChar(poolWriter.putClass(c));
1558 }
1559 databuf.appendChar(supertype.hasTag(CLASS) ? poolWriter.putClass((ClassSymbol)supertype.tsym) : 0);
1560 databuf.appendChar(interfaces.length());
1561 for (List<Type> l = interfaces; l.nonEmpty(); l = l.tail)
1562 databuf.appendChar(poolWriter.putClass((ClassSymbol)l.head.tsym));
1563 int fieldsCount = 0;
1564 int methodsCount = 0;
1565 for (Symbol sym : c.members().getSymbols(NON_RECURSIVE)) {
1566 switch (sym.kind) {
1567 case VAR: fieldsCount++; break;
1568 case MTH: if ((sym.flags() & HYPOTHETICAL) == 0) methodsCount++;
1569 break;
1570 case TYP: poolWriter.enterInner((ClassSymbol)sym); break;
1571 default : Assert.error();
1572 }
1573 }
1574
1575 if (c.trans_local != null) {
1576 for (ClassSymbol local : c.trans_local) {
1577 poolWriter.enterInner(local);
1578 }
1579 }
1580
1581 databuf.appendChar(fieldsCount);
1582 writeFields(c.members());
1583 databuf.appendChar(methodsCount);
1584 writeMethods(c.members());
1585
1586 int acountIdx = beginAttrs();
1587 int acount = 0;
1588
1589 boolean sigReq =
1590 typarams.length() != 0 || supertype.allparams().length() != 0;
1591 for (List<Type> l = interfaces; !sigReq && l.nonEmpty(); l = l.tail)
1592 sigReq = l.head.allparams().length() != 0;
1593 if (sigReq) {
1594 int alenIdx = writeAttr(names.Signature);
1595 databuf.appendChar(poolWriter.putSignature(c));
1596 endAttr(alenIdx);
1597 acount++;
1648 }
1649
1650 if (c.isRecord()) {
1651 acount += writeRecordAttribute(c);
1652 }
1653
1654 if (target.hasSealedClasses()) {
1655 acount += writePermittedSubclassesIfNeeded(c);
1656 }
1657
1658 if (!poolWriter.bootstrapMethods.isEmpty()) {
1659 writeBootstrapMethods();
1660 acount++;
1661 }
1662
1663 if (!poolWriter.innerClasses.isEmpty()) {
1664 writeInnerClasses();
1665 acount++;
1666 }
1667
1668 endAttrs(acountIdx, acount);
1669
1670 out.write(poolbuf.elems, 0, poolbuf.length);
1671
1672 poolWriter.writePool(out);
1673 poolWriter.reset(); // to save space
1674
1675 out.write(databuf.elems, 0, databuf.length);
1676 }
1677
1678 /**Allows subclasses to write additional class attributes
1679 *
1680 * @return the number of attributes written
1681 */
1682 protected int writeExtraClassAttributes(ClassSymbol c) {
1683 return 0;
1684 }
1685
1686 /**Allows friends to write additional attributes
1687 *
1691 int i = 0;
1692 for (ToIntFunction<Symbol> hook : extraAttributeHooks) {
1693 i += hook.applyAsInt(sym);
1694 }
1695 return i;
1696 }
1697
1698 int adjustFlags(final long flags) {
1699 int result = (int)flags;
1700
1701 // Elide strictfp bit in class files
1702 if (target.obsoleteAccStrict())
1703 result &= ~STRICTFP;
1704
1705 if ((flags & BRIDGE) != 0)
1706 result |= ACC_BRIDGE;
1707 if ((flags & VARARGS) != 0)
1708 result |= ACC_VARARGS;
1709 if ((flags & DEFAULT) != 0)
1710 result &= ~ABSTRACT;
1711 return result;
1712 }
1713
1714 long getLastModified(FileObject filename) {
1715 long mod = 0;
1716 try {
1717 mod = filename.getLastModified();
1718 } catch (SecurityException e) {
1719 throw new AssertionError("CRT: couldn't get source file modification date: " + e.getMessage());
1720 }
1721 return mod;
1722 }
1723 }
|
23 * questions.
24 */
25
26 package com.sun.tools.javac.jvm;
27
28 import java.io.*;
29 import java.util.LinkedHashMap;
30 import java.util.Map;
31 import java.util.Set;
32 import java.util.LinkedHashSet;
33 import java.util.function.ToIntFunction;
34
35 import javax.tools.JavaFileManager;
36 import javax.tools.FileObject;
37 import javax.tools.JavaFileManager.Location;
38 import javax.tools.JavaFileObject;
39
40 import com.sun.tools.javac.code.*;
41 import com.sun.tools.javac.code.Attribute.RetentionPolicy;
42 import com.sun.tools.javac.code.Directive.*;
43 import com.sun.tools.javac.code.Scope.WriteableScope;
44 import com.sun.tools.javac.code.Source.Feature;
45 import com.sun.tools.javac.code.Symbol.*;
46 import com.sun.tools.javac.code.Type.*;
47 import com.sun.tools.javac.code.Types.SignatureGenerator.InvalidSignatureException;
48 import com.sun.tools.javac.comp.Check;
49 import com.sun.tools.javac.file.PathFileObject;
50 import com.sun.tools.javac.jvm.PoolConstant.LoadableConstant;
51 import com.sun.tools.javac.jvm.PoolConstant.Dynamic.BsmKey;
52 import com.sun.tools.javac.resources.CompilerProperties.Errors;
53 import com.sun.tools.javac.resources.CompilerProperties.Fragments;
54 import com.sun.tools.javac.util.*;
55 import com.sun.tools.javac.util.List;
56
57 import static com.sun.tools.javac.code.Flags.*;
58 import static com.sun.tools.javac.code.Kinds.Kind.*;
59 import static com.sun.tools.javac.code.Scope.LookupKind.NON_RECURSIVE;
60 import static com.sun.tools.javac.code.TypeTag.*;
61 import static com.sun.tools.javac.main.Option.*;
62
63 import static javax.tools.StandardLocation.CLASS_OUTPUT;
126
127 /** An output buffer for member info.
128 */
129 public ByteBuffer databuf = new ByteBuffer(DATA_BUF_SIZE);
130
131 /** An output buffer for the constant pool.
132 */
133 ByteBuffer poolbuf = new ByteBuffer(CLASS_BUF_SIZE);
134
135 /** The constant pool writer.
136 */
137 final PoolWriter poolWriter;
138
139 /** The log to use for verbose output.
140 */
141 private final Log log;
142
143 /** The name table. */
144 private final Names names;
145
146 private final Symtab syms;
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;
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 protected ClassWriter(Context context) {
169 context.put(classWriterKey, this);
170
171 log = Log.instance(context);
172 names = Names.instance(context);
173 options = Options.instance(context);
174 preview = Preview.instance(context);
175 target = Target.instance(context);
176 source = Source.instance(context);
177 types = Types.instance(context);
178 check = Check.instance(context);
179 fileManager = context.get(JavaFileManager.class);
180 poolWriter = Gen.instance(context).poolWriter;
181 syms = Symtab.instance(context);
182
183 verbose = options.isSet(VERBOSE);
184 genCrt = options.isSet(XJCOV);
185 debugstackmap = options.isSet("debug.stackmap");
186
187 emitSourceFile = options.isUnset(G_CUSTOM) ||
188 options.isSet(G_CUSTOM, "source");
189
190 String modifierFlags = options.get("debug.dumpmodifiers");
191 if (modifierFlags != null) {
192 dumpClassModifiers = modifierFlags.indexOf('c') != -1;
193 dumpFieldModifiers = modifierFlags.indexOf('f') != -1;
194 dumpInnerClassModifiers = modifierFlags.indexOf('i') != -1;
195 dumpMethodModifiers = modifierFlags.indexOf('m') != -1;
196 }
197 }
198
199 public void addExtraAttributes(ToIntFunction<Symbol> addExtraAttributes) {
200 extraAttributeHooks = extraAttributeHooks.prepend(addExtraAttributes);
201 }
812 databuf.appendChar(poolWriter.putClass(srvc));
813 databuf.appendChar(impls.size());
814 impls.forEach(impl -> databuf.appendChar(poolWriter.putClass(impl)));
815 });
816
817 endAttr(alenIdx);
818 return 1;
819 }
820
821 /**********************************************************************
822 * Writing Objects
823 **********************************************************************/
824
825 /** Write "inner classes" attribute.
826 */
827 void writeInnerClasses() {
828 int alenIdx = writeAttr(names.InnerClasses);
829 databuf.appendChar(poolWriter.innerClasses.size());
830 for (ClassSymbol inner : poolWriter.innerClasses) {
831 inner.markAbstractIfNeeded(types);
832 char flags = (char) adjustFlags(inner.flags_field & ~STRICTFP); // inner classes should not have the strictfp flag set.
833 if ((flags & INTERFACE) != 0) flags |= ABSTRACT; // Interfaces are always ABSTRACT
834 if (dumpInnerClassModifiers) {
835 PrintWriter pw = log.getWriter(Log.WriterKind.ERROR);
836 pw.println("INNERCLASS " + inner.name);
837 pw.println("---" + flagNames(flags));
838 }
839 databuf.appendChar(poolWriter.putClass(inner));
840 databuf.appendChar(
841 inner.owner.kind == TYP && !inner.name.isEmpty() ? poolWriter.putClass((ClassSymbol)inner.owner) : 0);
842 databuf.appendChar(
843 !inner.name.isEmpty() ? poolWriter.putName(inner.name) : 0);
844 databuf.appendChar(flags);
845 }
846 endAttr(alenIdx);
847 }
848
849 /** Write out "Preload" attribute by enumerating the value classes encountered during this compilation.
850 */
851 void writeValueClasses() {
852 int alenIdx = writeAttr(names.Preload);
853 databuf.appendChar(poolWriter.valueClasses.size());
854 for (ClassSymbol c : poolWriter.valueClasses) {
855 databuf.appendChar(poolWriter.putClass(c));
856 }
857 endAttr(alenIdx);
858 }
859
860 int writeRecordAttribute(ClassSymbol csym) {
861 int alenIdx = writeAttr(names.Record);
862 Scope s = csym.members();
863 databuf.appendChar(csym.getRecordComponents().size());
864 for (VarSymbol v: csym.getRecordComponents()) {
865 //databuf.appendChar(poolWriter.putMember(v.accessor.head.snd));
866 databuf.appendChar(poolWriter.putName(v.name));
867 databuf.appendChar(poolWriter.putDescriptor(v));
868 int acountIdx = beginAttrs();
869 int acount = 0;
870 acount += writeMemberAttrs(v, true);
871 endAttrs(acountIdx, acount);
872 }
873 endAttr(alenIdx);
874 return 1;
875 }
876
877 /**
878 * Write NestMembers attribute (if needed)
879 */
1002 writeCode(m.code);
1003 m.code = null; // to conserve space
1004 endAttr(alenIdx);
1005 acount++;
1006 }
1007 List<Type> thrown = m.erasure(types).getThrownTypes();
1008 if (thrown.nonEmpty()) {
1009 int alenIdx = writeAttr(names.Exceptions);
1010 databuf.appendChar(thrown.length());
1011 for (List<Type> l = thrown; l.nonEmpty(); l = l.tail)
1012 databuf.appendChar(poolWriter.putClass(l.head));
1013 endAttr(alenIdx);
1014 acount++;
1015 }
1016 if (m.defaultValue != null) {
1017 int alenIdx = writeAttr(names.AnnotationDefault);
1018 m.defaultValue.accept(awriter);
1019 endAttr(alenIdx);
1020 acount++;
1021 }
1022 if (target.hasMethodParameters() && (
1023 options.isSet(PARAMETERS)
1024 || ((m.flags_field & RECORD) != 0 && (m.isConstructor() || m.isValueObjectFactory())))) {
1025 if (!m.isLambdaMethod()) // Per JDK-8138729, do not emit parameters table for lambda bodies.
1026 acount += writeMethodParametersAttr(m);
1027 }
1028 acount += writeMemberAttrs(m, false);
1029 if (!m.isLambdaMethod())
1030 acount += writeParameterAttrs(m.params);
1031 acount += writeExtraAttributes(m);
1032 endAttrs(acountIdx, acount);
1033 }
1034
1035 /** Write code attribute of method.
1036 */
1037 void writeCode(Code code) {
1038 databuf.appendChar(code.max_stack);
1039 databuf.appendChar(code.max_locals);
1040 databuf.appendInt(code.cp);
1041 databuf.appendBytes(code.code, 0, code.cp);
1042 databuf.appendChar(code.catchInfo.length());
1043 for (List<char[]> l = code.catchInfo.toList();
1044 l.nonEmpty();
1224 databuf.appendByte(1);
1225 break;
1226 case FLOAT:
1227 if (debugstackmap) System.out.print("float");
1228 databuf.appendByte(2);
1229 break;
1230 case DOUBLE:
1231 if (debugstackmap) System.out.print("double");
1232 databuf.appendByte(3);
1233 break;
1234 case LONG:
1235 if (debugstackmap) System.out.print("long");
1236 databuf.appendByte(4);
1237 break;
1238 case BOT: // null
1239 if (debugstackmap) System.out.print("null");
1240 databuf.appendByte(5);
1241 break;
1242 case CLASS:
1243 case ARRAY:
1244 if (debugstackmap) System.out.print("object(" + types.erasure(t).tsym + ")");
1245 databuf.appendByte(7);
1246 databuf.appendChar(types.isPrimitiveClass(t) ? poolWriter.putClass(new ConstantPoolQType(types.erasure(t), types)) : poolWriter.putClass(types.erasure(t)));
1247 break;
1248 case TYPEVAR:
1249 if (debugstackmap) System.out.print("object(" + types.erasure(t).tsym + ")");
1250 databuf.appendByte(7);
1251 databuf.appendChar(poolWriter.putClass(types.erasure(t)));
1252 break;
1253 case UNINITIALIZED_THIS:
1254 if (debugstackmap) System.out.print("uninit_this");
1255 databuf.appendByte(6);
1256 break;
1257 case UNINITIALIZED_OBJECT:
1258 { UninitializedType uninitType = (UninitializedType)t;
1259 databuf.appendByte(8);
1260 if (debugstackmap) System.out.print("uninit_object@" + uninitType.offset);
1261 databuf.appendChar(uninitType.offset);
1262 }
1263 break;
1264 default:
1265 throw new AssertionError();
1266 }
1267 }
1539 }
1540 return outFile; // may be null if write failed
1541 }
1542
1543 /** Write class `c' to outstream `out'.
1544 */
1545 public void writeClassFile(OutputStream out, ClassSymbol c)
1546 throws IOException, PoolOverflow, StringOverflow {
1547 Assert.check((c.flags() & COMPOUND) == 0);
1548 databuf.reset();
1549 poolbuf.reset();
1550
1551 Type supertype = types.supertype(c.type);
1552 List<Type> interfaces = types.interfaces(c.type);
1553 List<Type> typarams = c.type.getTypeArguments();
1554
1555 int flags;
1556 if (c.owner.kind == MDL) {
1557 flags = ACC_MODULE;
1558 } else {
1559 flags = adjustFlags(c.flags() & ~(DEFAULT | STRICTFP));
1560 if ((flags & PROTECTED) != 0) flags |= PUBLIC;
1561 flags = flags & ClassFlags;
1562 if ((flags & INTERFACE) == 0) flags |= ACC_SUPER;
1563 }
1564
1565 if (dumpClassModifiers) {
1566 PrintWriter pw = log.getWriter(Log.WriterKind.ERROR);
1567 pw.println();
1568 pw.println("CLASSFILE " + c.getQualifiedName());
1569 pw.println("---" + flagNames(flags));
1570 }
1571 databuf.appendChar(flags);
1572
1573 if (c.owner.kind == MDL) {
1574 PackageSymbol unnamed = ((ModuleSymbol) c.owner).unnamedPackage;
1575 databuf.appendChar(poolWriter.putClass(new ClassSymbol(0, names.module_info, unnamed)));
1576 } else {
1577 databuf.appendChar(poolWriter.putClass(c));
1578 }
1579 databuf.appendChar(supertype.hasTag(CLASS) ? poolWriter.putClass((ClassSymbol)supertype.tsym) : 0);
1580 databuf.appendChar(interfaces.length());
1581 for (List<Type> l = interfaces; l.nonEmpty(); l = l.tail)
1582 databuf.appendChar(poolWriter.putClass((ClassSymbol)l.head.tsym));
1583 int fieldsCount = 0;
1584 int methodsCount = 0;
1585 for (Symbol sym : c.members().getSymbols(NON_RECURSIVE)) {
1586 switch (sym.kind) {
1587 case VAR: fieldsCount++; break;
1588 case MTH: if ((sym.flags() & HYPOTHETICAL) == 0) methodsCount++;
1589 break;
1590 case TYP: poolWriter.enterInnerAndValueClass((ClassSymbol)sym); break;
1591 default : Assert.error();
1592 }
1593 }
1594
1595 if (c.trans_local != null) {
1596 for (ClassSymbol local : c.trans_local) {
1597 poolWriter.enterInnerAndValueClass(local);
1598 }
1599 }
1600
1601 databuf.appendChar(fieldsCount);
1602 writeFields(c.members());
1603 databuf.appendChar(methodsCount);
1604 writeMethods(c.members());
1605
1606 int acountIdx = beginAttrs();
1607 int acount = 0;
1608
1609 boolean sigReq =
1610 typarams.length() != 0 || supertype.allparams().length() != 0;
1611 for (List<Type> l = interfaces; !sigReq && l.nonEmpty(); l = l.tail)
1612 sigReq = l.head.allparams().length() != 0;
1613 if (sigReq) {
1614 int alenIdx = writeAttr(names.Signature);
1615 databuf.appendChar(poolWriter.putSignature(c));
1616 endAttr(alenIdx);
1617 acount++;
1668 }
1669
1670 if (c.isRecord()) {
1671 acount += writeRecordAttribute(c);
1672 }
1673
1674 if (target.hasSealedClasses()) {
1675 acount += writePermittedSubclassesIfNeeded(c);
1676 }
1677
1678 if (!poolWriter.bootstrapMethods.isEmpty()) {
1679 writeBootstrapMethods();
1680 acount++;
1681 }
1682
1683 if (!poolWriter.innerClasses.isEmpty()) {
1684 writeInnerClasses();
1685 acount++;
1686 }
1687
1688 if (!poolWriter.valueClasses.isEmpty()) {
1689 writeValueClasses();
1690 acount++;
1691 }
1692
1693 endAttrs(acountIdx, acount);
1694
1695 out.write(poolbuf.elems, 0, poolbuf.length);
1696
1697 poolWriter.writePool(out);
1698 poolWriter.reset(); // to save space
1699
1700 out.write(databuf.elems, 0, databuf.length);
1701 }
1702
1703 /**Allows subclasses to write additional class attributes
1704 *
1705 * @return the number of attributes written
1706 */
1707 protected int writeExtraClassAttributes(ClassSymbol c) {
1708 return 0;
1709 }
1710
1711 /**Allows friends to write additional attributes
1712 *
1716 int i = 0;
1717 for (ToIntFunction<Symbol> hook : extraAttributeHooks) {
1718 i += hook.applyAsInt(sym);
1719 }
1720 return i;
1721 }
1722
1723 int adjustFlags(final long flags) {
1724 int result = (int)flags;
1725
1726 // Elide strictfp bit in class files
1727 if (target.obsoleteAccStrict())
1728 result &= ~STRICTFP;
1729
1730 if ((flags & BRIDGE) != 0)
1731 result |= ACC_BRIDGE;
1732 if ((flags & VARARGS) != 0)
1733 result |= ACC_VARARGS;
1734 if ((flags & DEFAULT) != 0)
1735 result &= ~ABSTRACT;
1736 if ((flags & PRIMITIVE_CLASS) != 0)
1737 result |= ACC_PRIMITIVE;
1738 if ((flags & VALUE_CLASS) != 0)
1739 result |= ACC_VALUE;
1740 return result;
1741 }
1742
1743 long getLastModified(FileObject filename) {
1744 long mod = 0;
1745 try {
1746 mod = filename.getLastModified();
1747 } catch (SecurityException e) {
1748 throw new AssertionError("CRT: couldn't get source file modification date: " + e.getMessage());
1749 }
1750 return mod;
1751 }
1752 }
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