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comparison jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl.java @ 23393:1d4ce2d19e52

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clean up and minimize JVMCI (JDK-8156835)
author Doug Simon <doug.simon@oracle.com>
date Thu, 12 May 2016 20:57:31 +0200
parents b3a816d3b844
children b5557b757040
comparison
equal deleted inserted replaced
23392:b3a816d3b844 23393:1d4ce2d19e52
44 import jdk.vm.ci.meta.ExceptionHandler; 44 import jdk.vm.ci.meta.ExceptionHandler;
45 import jdk.vm.ci.meta.JavaConstant; 45 import jdk.vm.ci.meta.JavaConstant;
46 import jdk.vm.ci.meta.JavaMethod; 46 import jdk.vm.ci.meta.JavaMethod;
47 import jdk.vm.ci.meta.JavaType; 47 import jdk.vm.ci.meta.JavaType;
48 import jdk.vm.ci.meta.LineNumberTable; 48 import jdk.vm.ci.meta.LineNumberTable;
49 import jdk.vm.ci.meta.LineNumberTableImpl;
50 import jdk.vm.ci.meta.Local; 49 import jdk.vm.ci.meta.Local;
51 import jdk.vm.ci.meta.LocalImpl;
52 import jdk.vm.ci.meta.LocalVariableTable; 50 import jdk.vm.ci.meta.LocalVariableTable;
53 import jdk.vm.ci.meta.LocalVariableTableImpl;
54 import jdk.vm.ci.meta.ModifiersProvider; 51 import jdk.vm.ci.meta.ModifiersProvider;
55 import jdk.vm.ci.meta.ProfilingInfo; 52 import jdk.vm.ci.meta.ProfilingInfo;
56 import jdk.vm.ci.meta.ResolvedJavaMethod; 53 import jdk.vm.ci.meta.ResolvedJavaMethod;
57 import jdk.vm.ci.meta.ResolvedJavaType; 54 import jdk.vm.ci.meta.ResolvedJavaType;
58 import jdk.vm.ci.meta.Signature; 55 import jdk.vm.ci.meta.Signature;
60 import jdk.vm.ci.meta.TriState; 57 import jdk.vm.ci.meta.TriState;
61 58
62 /** 59 /**
63 * Implementation of {@link JavaMethod} for resolved HotSpot methods. 60 * Implementation of {@link JavaMethod} for resolved HotSpot methods.
64 */ 61 */
65 final class HotSpotResolvedJavaMethodImpl extends HotSpotMethod implements HotSpotResolvedJavaMethod, HotSpotProxified, MetaspaceWrapperObject { 62 final class HotSpotResolvedJavaMethodImpl extends HotSpotMethod implements HotSpotResolvedJavaMethod, MetaspaceWrapperObject {
66 63
67 /** 64 /**
68 * Reference to metaspace Method object. 65 * Reference to metaspace Method object.
69 */ 66 */
70 private final long metaspaceMethod; 67 private final long metaspaceMethod;
168 * Returns this method's flags ({@code Method::_flags}). 165 * Returns this method's flags ({@code Method::_flags}).
169 * 166 *
170 * @return flags of this method 167 * @return flags of this method
171 */ 168 */
172 private int getFlags() { 169 private int getFlags() {
170 // Important: Size of field changed, JDK8 has u1 and JDK9 u2
173 return UNSAFE.getByte(metaspaceMethod + config().methodFlagsOffset); 171 return UNSAFE.getByte(metaspaceMethod + config().methodFlagsOffset);
174 } 172 }
175 173
176 /** 174 /**
177 * Returns this method's constant method flags ({@code ConstMethod::_flags}). 175 * Returns this method's constant method flags ({@code ConstMethod::_flags}).
570 for (int i = 0; i < values.length / 2; i++) { 568 for (int i = 0; i < values.length / 2; i++) {
571 bci[i] = (int) values[i * 2]; 569 bci[i] = (int) values[i * 2];
572 line[i] = (int) values[i * 2 + 1]; 570 line[i] = (int) values[i * 2 + 1];
573 } 571 }
574 572
575 return new LineNumberTableImpl(line, bci); 573 return new LineNumberTable(line, bci);
576 } 574 }
577 575
578 @Override 576 @Override
579 public LocalVariableTable getLocalVariableTable() { 577 public LocalVariableTable getLocalVariableTable() {
580 final boolean hasLocalVariableTable = (getConstMethodFlags() & config().constMethodHasLocalVariableTable) != 0; 578 final boolean hasLocalVariableTable = (getConstMethodFlags() & config().constMethodHasLocalVariableTable) != 0;
595 final int slot = UNSAFE.getChar(localVariableTableElement + config.localVariableTableElementSlotOffset); 593 final int slot = UNSAFE.getChar(localVariableTableElement + config.localVariableTableElementSlotOffset);
596 594
597 String localName = getConstantPool().lookupUtf8(nameCpIndex); 595 String localName = getConstantPool().lookupUtf8(nameCpIndex);
598 String localType = getConstantPool().lookupUtf8(typeCpIndex); 596 String localType = getConstantPool().lookupUtf8(typeCpIndex);
599 597
600 locals[i] = new LocalImpl(localName, runtime().lookupType(localType, holder, false), startBci, endBci, slot); 598 locals[i] = new Local(localName, runtime().lookupType(localType, holder, false), startBci, endBci, slot);
601 599
602 // Go to the next LocalVariableTableElement 600 // Go to the next LocalVariableTableElement
603 localVariableTableElement += config.localVariableTableElementSize; 601 localVariableTableElement += config.localVariableTableElementSize;
604 } 602 }
605 603
606 return new LocalVariableTableImpl(locals); 604 return new LocalVariableTable(locals);
607 } 605 }
608 606
609 /** 607 /**
610 * Returns the offset of this method into the v-table. The method must have a v-table entry as 608 * Returns the offset of this method into the v-table. The method must have a v-table entry as
611 * indicated by {@link #isInVirtualMethodTable(ResolvedJavaType)}, otherwise an exception is 609 * indicated by {@link #isInVirtualMethodTable(ResolvedJavaType)}, otherwise an exception is