--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javap/CodeWriter.java Thu May 28 16:13:55 2015 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,286 +0,0 @@
-/*
- * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package com.sun.tools.javap;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import com.sun.tools.classfile.AccessFlags;
-import com.sun.tools.classfile.Code_attribute;
-import com.sun.tools.classfile.ConstantPool;
-import com.sun.tools.classfile.ConstantPoolException;
-import com.sun.tools.classfile.DescriptorException;
-import com.sun.tools.classfile.Instruction;
-import com.sun.tools.classfile.Instruction.TypeKind;
-import com.sun.tools.classfile.Method;
-
-/*
- * Write the contents of a Code attribute.
- *
- * <p><b>This is NOT part of any supported API.
- * If you write code that depends on this, you do so at your own risk.
- * This code and its internal interfaces are subject to change or
- * deletion without notice.</b>
- */
-public class CodeWriter extends BasicWriter {
- public static CodeWriter instance(Context context) {
- CodeWriter instance = context.get(CodeWriter.class);
- if (instance == null)
- instance = new CodeWriter(context);
- return instance;
- }
-
- protected CodeWriter(Context context) {
- super(context);
- context.put(CodeWriter.class, this);
- attrWriter = AttributeWriter.instance(context);
- classWriter = ClassWriter.instance(context);
- constantWriter = ConstantWriter.instance(context);
- sourceWriter = SourceWriter.instance(context);
- tryBlockWriter = TryBlockWriter.instance(context);
- stackMapWriter = StackMapWriter.instance(context);
- localVariableTableWriter = LocalVariableTableWriter.instance(context);
- localVariableTypeTableWriter = LocalVariableTypeTableWriter.instance(context);
- typeAnnotationWriter = TypeAnnotationWriter.instance(context);
- options = Options.instance(context);
- }
-
- void write(Code_attribute attr, ConstantPool constant_pool) {
- println("Code:");
- indent(+1);
- writeVerboseHeader(attr, constant_pool);
- writeInstrs(attr);
- writeExceptionTable(attr);
- attrWriter.write(attr, attr.attributes, constant_pool);
- indent(-1);
- }
-
- public void writeVerboseHeader(Code_attribute attr, ConstantPool constant_pool) {
- Method method = classWriter.getMethod();
- String argCount;
- try {
- int n = method.descriptor.getParameterCount(constant_pool);
- if (!method.access_flags.is(AccessFlags.ACC_STATIC))
- ++n; // for 'this'
- argCount = Integer.toString(n);
- } catch (ConstantPoolException e) {
- argCount = report(e);
- } catch (DescriptorException e) {
- argCount = report(e);
- }
-
- println("stack=" + attr.max_stack +
- ", locals=" + attr.max_locals +
- ", args_size=" + argCount);
-
- }
-
- public void writeInstrs(Code_attribute attr) {
- List<InstructionDetailWriter> detailWriters = getDetailWriters(attr);
-
- for (Instruction instr: attr.getInstructions()) {
- try {
- for (InstructionDetailWriter w: detailWriters)
- w.writeDetails(instr);
- writeInstr(instr);
- } catch (ArrayIndexOutOfBoundsException e) {
- println(report("error at or after byte " + instr.getPC()));
- break;
- }
- }
-
- for (InstructionDetailWriter w: detailWriters)
- w.flush();
- }
-
- public void writeInstr(Instruction instr) {
- print(String.format("%4d: %-13s ", instr.getPC(), instr.getMnemonic()));
- // compute the number of indentations for the body of multi-line instructions
- // This is 6 (the width of "%4d: "), divided by the width of each indentation level,
- // and rounded up to the next integer.
- int indentWidth = options.indentWidth;
- int indent = (6 + indentWidth - 1) / indentWidth;
- instr.accept(instructionPrinter, indent);
- println();
- }
- // where
- Instruction.KindVisitor<Void,Integer> instructionPrinter =
- new Instruction.KindVisitor<Void,Integer>() {
-
- public Void visitNoOperands(Instruction instr, Integer indent) {
- return null;
- }
-
- public Void visitArrayType(Instruction instr, TypeKind kind, Integer indent) {
- print(" " + kind.name);
- return null;
- }
-
- public Void visitBranch(Instruction instr, int offset, Integer indent) {
- print((instr.getPC() + offset));
- return null;
- }
-
- public Void visitConstantPoolRef(Instruction instr, int index, Integer indent) {
- print("#" + index);
- tab();
- print("// ");
- printConstant(index);
- return null;
- }
-
- public Void visitConstantPoolRefAndValue(Instruction instr, int index, int value, Integer indent) {
- print("#" + index + ", " + value);
- tab();
- print("// ");
- printConstant(index);
- return null;
- }
-
- public Void visitLocal(Instruction instr, int index, Integer indent) {
- print(index);
- return null;
- }
-
- public Void visitLocalAndValue(Instruction instr, int index, int value, Integer indent) {
- print(index + ", " + value);
- return null;
- }
-
- public Void visitLookupSwitch(Instruction instr,
- int default_, int npairs, int[] matches, int[] offsets, Integer indent) {
- int pc = instr.getPC();
- print("{ // " + npairs);
- indent(indent);
- for (int i = 0; i < npairs; i++) {
- print(String.format("%n%12d: %d", matches[i], (pc + offsets[i])));
- }
- print("\n default: " + (pc + default_) + "\n}");
- indent(-indent);
- return null;
- }
-
- public Void visitTableSwitch(Instruction instr,
- int default_, int low, int high, int[] offsets, Integer indent) {
- int pc = instr.getPC();
- print("{ // " + low + " to " + high);
- indent(indent);
- for (int i = 0; i < offsets.length; i++) {
- print(String.format("%n%12d: %d", (low + i), (pc + offsets[i])));
- }
- print("\n default: " + (pc + default_) + "\n}");
- indent(-indent);
- return null;
- }
-
- public Void visitValue(Instruction instr, int value, Integer indent) {
- print(value);
- return null;
- }
-
- public Void visitUnknown(Instruction instr, Integer indent) {
- return null;
- }
- };
-
-
- public void writeExceptionTable(Code_attribute attr) {
- if (attr.exception_table_length > 0) {
- println("Exception table:");
- indent(+1);
- println(" from to target type");
- for (int i = 0; i < attr.exception_table.length; i++) {
- Code_attribute.Exception_data handler = attr.exception_table[i];
- print(String.format(" %5d %5d %5d",
- handler.start_pc, handler.end_pc, handler.handler_pc));
- print(" ");
- int catch_type = handler.catch_type;
- if (catch_type == 0) {
- println("any");
- } else {
- print("Class ");
- println(constantWriter.stringValue(catch_type));
- }
- }
- indent(-1);
- }
-
- }
-
- private void printConstant(int index) {
- constantWriter.write(index);
- }
-
- private List<InstructionDetailWriter> getDetailWriters(Code_attribute attr) {
- List<InstructionDetailWriter> detailWriters = new ArrayList<>();
- if (options.details.contains(InstructionDetailWriter.Kind.SOURCE)) {
- sourceWriter.reset(classWriter.getClassFile(), attr);
- if (sourceWriter.hasSource())
- detailWriters.add(sourceWriter);
- else
- println("(Source code not available)");
- }
-
- if (options.details.contains(InstructionDetailWriter.Kind.LOCAL_VARS)) {
- localVariableTableWriter.reset(attr);
- detailWriters.add(localVariableTableWriter);
- }
-
- if (options.details.contains(InstructionDetailWriter.Kind.LOCAL_VAR_TYPES)) {
- localVariableTypeTableWriter.reset(attr);
- detailWriters.add(localVariableTypeTableWriter);
- }
-
- if (options.details.contains(InstructionDetailWriter.Kind.STACKMAPS)) {
- stackMapWriter.reset(attr);
- stackMapWriter.writeInitialDetails();
- detailWriters.add(stackMapWriter);
- }
-
- if (options.details.contains(InstructionDetailWriter.Kind.TRY_BLOCKS)) {
- tryBlockWriter.reset(attr);
- detailWriters.add(tryBlockWriter);
- }
-
- if (options.details.contains(InstructionDetailWriter.Kind.TYPE_ANNOS)) {
- typeAnnotationWriter.reset(attr);
- detailWriters.add(typeAnnotationWriter);
- }
-
- return detailWriters;
- }
-
- private AttributeWriter attrWriter;
- private ClassWriter classWriter;
- private ConstantWriter constantWriter;
- private LocalVariableTableWriter localVariableTableWriter;
- private LocalVariableTypeTableWriter localVariableTypeTableWriter;
- private TypeAnnotationWriter typeAnnotationWriter;
- private SourceWriter sourceWriter;
- private StackMapWriter stackMapWriter;
- private TryBlockWriter tryBlockWriter;
- private Options options;
-}