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8187443: Forest Consolidation: Move files to unified layout
Reviewed-by: darcy, ihse
This commit is contained in:
Erik Joelsson
parent
270fe13182
commit
3789983e89
56923 changed files with 3 additions and 15727 deletions
286
src/jdk.jdeps/share/classes/com/sun/tools/javap/CodeWriter.java
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286
src/jdk.jdeps/share/classes/com/sun/tools/javap/CodeWriter.java
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@ -0,0 +1,286 @@
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/*
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* Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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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
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* 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
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* version 2 for more details (a copy is included in the LICENSE file that
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* 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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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package com.sun.tools.javap;
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import java.util.ArrayList;
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import java.util.List;
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import com.sun.tools.classfile.AccessFlags;
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import com.sun.tools.classfile.Code_attribute;
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import com.sun.tools.classfile.ConstantPool;
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import com.sun.tools.classfile.ConstantPoolException;
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import com.sun.tools.classfile.DescriptorException;
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import com.sun.tools.classfile.Instruction;
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import com.sun.tools.classfile.Instruction.TypeKind;
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import com.sun.tools.classfile.Method;
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/*
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* Write the contents of a Code attribute.
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*
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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.
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* This code and its internal interfaces are subject to change or
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* deletion without notice.</b>
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*/
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public class CodeWriter extends BasicWriter {
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public static CodeWriter instance(Context context) {
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CodeWriter instance = context.get(CodeWriter.class);
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if (instance == null)
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instance = new CodeWriter(context);
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return instance;
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}
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protected CodeWriter(Context context) {
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super(context);
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context.put(CodeWriter.class, this);
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attrWriter = AttributeWriter.instance(context);
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classWriter = ClassWriter.instance(context);
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constantWriter = ConstantWriter.instance(context);
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sourceWriter = SourceWriter.instance(context);
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tryBlockWriter = TryBlockWriter.instance(context);
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stackMapWriter = StackMapWriter.instance(context);
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localVariableTableWriter = LocalVariableTableWriter.instance(context);
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localVariableTypeTableWriter = LocalVariableTypeTableWriter.instance(context);
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typeAnnotationWriter = TypeAnnotationWriter.instance(context);
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options = Options.instance(context);
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}
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void write(Code_attribute attr, ConstantPool constant_pool) {
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println("Code:");
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indent(+1);
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writeVerboseHeader(attr, constant_pool);
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writeInstrs(attr);
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writeExceptionTable(attr);
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attrWriter.write(attr, attr.attributes, constant_pool);
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indent(-1);
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}
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public void writeVerboseHeader(Code_attribute attr, ConstantPool constant_pool) {
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Method method = classWriter.getMethod();
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String argCount;
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try {
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int n = method.descriptor.getParameterCount(constant_pool);
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if (!method.access_flags.is(AccessFlags.ACC_STATIC))
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++n; // for 'this'
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argCount = Integer.toString(n);
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} catch (ConstantPoolException e) {
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argCount = report(e);
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} catch (DescriptorException e) {
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argCount = report(e);
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}
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println("stack=" + attr.max_stack +
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", locals=" + attr.max_locals +
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", args_size=" + argCount);
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}
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public void writeInstrs(Code_attribute attr) {
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List<InstructionDetailWriter> detailWriters = getDetailWriters(attr);
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for (Instruction instr: attr.getInstructions()) {
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try {
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for (InstructionDetailWriter w: detailWriters)
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w.writeDetails(instr);
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writeInstr(instr);
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} catch (ArrayIndexOutOfBoundsException e) {
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println(report("error at or after byte " + instr.getPC()));
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break;
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}
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}
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for (InstructionDetailWriter w: detailWriters)
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w.flush();
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}
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public void writeInstr(Instruction instr) {
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print(String.format("%4d: %-13s ", instr.getPC(), instr.getMnemonic()));
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// compute the number of indentations for the body of multi-line instructions
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// This is 6 (the width of "%4d: "), divided by the width of each indentation level,
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// and rounded up to the next integer.
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int indentWidth = options.indentWidth;
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int indent = (6 + indentWidth - 1) / indentWidth;
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instr.accept(instructionPrinter, indent);
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println();
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}
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// where
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Instruction.KindVisitor<Void,Integer> instructionPrinter =
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new Instruction.KindVisitor<Void,Integer>() {
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public Void visitNoOperands(Instruction instr, Integer indent) {
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return null;
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}
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public Void visitArrayType(Instruction instr, TypeKind kind, Integer indent) {
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print(" " + kind.name);
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return null;
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}
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public Void visitBranch(Instruction instr, int offset, Integer indent) {
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print((instr.getPC() + offset));
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return null;
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}
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public Void visitConstantPoolRef(Instruction instr, int index, Integer indent) {
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print("#" + index);
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tab();
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print("// ");
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printConstant(index);
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return null;
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}
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public Void visitConstantPoolRefAndValue(Instruction instr, int index, int value, Integer indent) {
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print("#" + index + ", " + value);
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tab();
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print("// ");
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printConstant(index);
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return null;
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}
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public Void visitLocal(Instruction instr, int index, Integer indent) {
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print(index);
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return null;
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}
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public Void visitLocalAndValue(Instruction instr, int index, int value, Integer indent) {
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print(index + ", " + value);
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return null;
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}
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public Void visitLookupSwitch(Instruction instr,
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int default_, int npairs, int[] matches, int[] offsets, Integer indent) {
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int pc = instr.getPC();
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print("{ // " + npairs);
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indent(indent);
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for (int i = 0; i < npairs; i++) {
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print(String.format("%n%12d: %d", matches[i], (pc + offsets[i])));
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}
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print("\n default: " + (pc + default_) + "\n}");
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indent(-indent);
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return null;
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}
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public Void visitTableSwitch(Instruction instr,
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int default_, int low, int high, int[] offsets, Integer indent) {
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int pc = instr.getPC();
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print("{ // " + low + " to " + high);
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indent(indent);
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for (int i = 0; i < offsets.length; i++) {
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print(String.format("%n%12d: %d", (low + i), (pc + offsets[i])));
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}
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print("\n default: " + (pc + default_) + "\n}");
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indent(-indent);
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return null;
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}
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public Void visitValue(Instruction instr, int value, Integer indent) {
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print(value);
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return null;
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}
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public Void visitUnknown(Instruction instr, Integer indent) {
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return null;
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}
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};
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public void writeExceptionTable(Code_attribute attr) {
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if (attr.exception_table_length > 0) {
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println("Exception table:");
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indent(+1);
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println(" from to target type");
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for (int i = 0; i < attr.exception_table.length; i++) {
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Code_attribute.Exception_data handler = attr.exception_table[i];
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print(String.format(" %5d %5d %5d",
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handler.start_pc, handler.end_pc, handler.handler_pc));
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print(" ");
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int catch_type = handler.catch_type;
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if (catch_type == 0) {
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println("any");
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} else {
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print("Class ");
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println(constantWriter.stringValue(catch_type));
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}
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}
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indent(-1);
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}
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}
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private void printConstant(int index) {
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constantWriter.write(index);
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}
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private List<InstructionDetailWriter> getDetailWriters(Code_attribute attr) {
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List<InstructionDetailWriter> detailWriters = new ArrayList<>();
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if (options.details.contains(InstructionDetailWriter.Kind.SOURCE)) {
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sourceWriter.reset(classWriter.getClassFile(), attr);
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if (sourceWriter.hasSource())
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detailWriters.add(sourceWriter);
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else
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println("(Source code not available)");
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}
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if (options.details.contains(InstructionDetailWriter.Kind.LOCAL_VARS)) {
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localVariableTableWriter.reset(attr);
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detailWriters.add(localVariableTableWriter);
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}
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if (options.details.contains(InstructionDetailWriter.Kind.LOCAL_VAR_TYPES)) {
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localVariableTypeTableWriter.reset(attr);
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detailWriters.add(localVariableTypeTableWriter);
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}
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if (options.details.contains(InstructionDetailWriter.Kind.STACKMAPS)) {
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stackMapWriter.reset(attr);
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stackMapWriter.writeInitialDetails();
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detailWriters.add(stackMapWriter);
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}
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if (options.details.contains(InstructionDetailWriter.Kind.TRY_BLOCKS)) {
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tryBlockWriter.reset(attr);
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detailWriters.add(tryBlockWriter);
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}
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if (options.details.contains(InstructionDetailWriter.Kind.TYPE_ANNOS)) {
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typeAnnotationWriter.reset(attr);
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detailWriters.add(typeAnnotationWriter);
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}
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return detailWriters;
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}
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private AttributeWriter attrWriter;
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private ClassWriter classWriter;
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private ConstantWriter constantWriter;
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private LocalVariableTableWriter localVariableTableWriter;
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private LocalVariableTypeTableWriter localVariableTypeTableWriter;
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private TypeAnnotationWriter typeAnnotationWriter;
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private SourceWriter sourceWriter;
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private StackMapWriter stackMapWriter;
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private TryBlockWriter tryBlockWriter;
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private Options options;
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}
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