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com.strobel.assembler.metadata.ConstantPoolPrinter Maven / Gradle / Ivy
/*
* ConstantPoolPrinter.java
*
* Copyright (c) 2013 Mike Strobel
*
* This source code is based on Mono.Cecil from Jb Evain, Copyright (c) Jb Evain;
* and ILSpy/ICSharpCode from SharpDevelop, Copyright (c) AlphaSierraPapa.
*
* This source code is subject to terms and conditions of the Apache License, Version 2.0.
* A copy of the license can be found in the License.html file at the root of this distribution.
* By using this source code in any fashion, you are agreeing to be bound by the terms of the
* Apache License, Version 2.0.
*
* You must not remove this notice, or any other, from this software.
*/
package com.strobel.assembler.metadata;
import com.strobel.assembler.ir.ConstantPool;
import com.strobel.core.StringUtilities;
import com.strobel.core.VerifyArgument;
import com.strobel.decompiler.DecompilerHelpers;
import com.strobel.decompiler.DecompilerSettings;
import com.strobel.decompiler.ITextOutput;
import static java.lang.String.format;
public class ConstantPoolPrinter implements ConstantPool.Visitor {
private final static int MAX_TAG_LENGTH;
static {
int maxTagLength = 0;
for (final ConstantPool.Tag tag : ConstantPool.Tag.values()) {
final int length = tag.name().length();
if (length > maxTagLength) {
maxTagLength = length;
}
}
MAX_TAG_LENGTH = maxTagLength;
}
private final ITextOutput _output;
private final DecompilerSettings _settings;
private boolean _isHeaderPrinted;
public ConstantPoolPrinter(final ITextOutput output) {
this(output, DecompilerSettings.javaDefaults());
}
public ConstantPoolPrinter(final ITextOutput output, final DecompilerSettings settings) {
_output = VerifyArgument.notNull(output, "output");
_settings = VerifyArgument.notNull(settings, "settings");
}
protected void printTag(final ConstantPool.Tag tag) {
_output.writeAttribute(format("%1$-" + MAX_TAG_LENGTH + "s ", tag));
}
@Override
public void visit(final ConstantPool.Entry entry) {
VerifyArgument.notNull(entry, "entry");
if (!_isHeaderPrinted) {
_output.writeAttribute("Constant Pool");
_output.write(':');
_output.writeLine();
_isHeaderPrinted = true;
}
_output.indent();
_output.writeLiteral(format("%1$5d", entry.index));
_output.write(": ");
printTag(entry.getTag());
entry.accept(this);
_output.writeLine();
_output.unindent();
}
@Override
public void visitTypeInfo(final ConstantPool.TypeInfoEntry info) {
_output.writeDelimiter("#");
_output.writeLiteral(format("%1$-14d", info.nameIndex));
_output.writeComment(format("// %1$s", StringUtilities.escape(info.getName())), false, _settings.isUnicodeOutputEnabled());
}
@Override
public void visitDoubleConstant(final ConstantPool.DoubleConstantEntry info) {
DecompilerHelpers.writePrimitiveValue(_output, info.getConstantValue());
}
@Override
public void visitFieldReference(final ConstantPool.FieldReferenceEntry info) {
final ConstantPool.NameAndTypeDescriptorEntry nameAndTypeInfo = info.getNameAndTypeInfo();
final int startColumn = _output.getColumn();
_output.writeDelimiter("#");
_output.writeLiteral(info.typeInfoIndex);
_output.writeDelimiter(".");
_output.writeDelimiter("#");
_output.writeLiteral(info.nameAndTypeDescriptorIndex);
final int endColumn = _output.getColumn();
final int padding = (14 - (endColumn - startColumn));
final String paddingText = padding > 0 ? StringUtilities.repeat(' ', padding) : "";
_output.writeComment(
format(
paddingText + " // %1$s.%2$s:%3$s",
StringUtilities.escape(info.getClassName(), false, _settings.isUnicodeOutputEnabled()),
StringUtilities.escape(nameAndTypeInfo.getName(), false, _settings.isUnicodeOutputEnabled()),
StringUtilities.escape(nameAndTypeInfo.getType(), false, _settings.isUnicodeOutputEnabled())
)
);
}
@Override
public void visitFloatConstant(final ConstantPool.FloatConstantEntry info) {
DecompilerHelpers.writePrimitiveValue(_output, info.getConstantValue());
}
@Override
public void visitIntegerConstant(final ConstantPool.IntegerConstantEntry info) {
DecompilerHelpers.writePrimitiveValue(_output, info.getConstantValue());
}
@Override
public void visitInterfaceMethodReference(final ConstantPool.InterfaceMethodReferenceEntry info) {
final ConstantPool.NameAndTypeDescriptorEntry nameAndTypeInfo = info.getNameAndTypeInfo();
final int startColumn = _output.getColumn();
_output.writeDelimiter("#");
_output.writeLiteral(info.typeInfoIndex);
_output.writeDelimiter(".");
_output.writeDelimiter("#");
_output.writeLiteral(info.nameAndTypeDescriptorIndex);
final int endColumn = _output.getColumn();
final int padding = (14 - (endColumn - startColumn));
final String paddingText = padding > 0 ? StringUtilities.repeat(' ', padding) : "";
_output.writeComment(
format(
paddingText + " // %1$s.%2$s:%3$s",
StringUtilities.escape(info.getClassName(), false, _settings.isUnicodeOutputEnabled()),
StringUtilities.escape(nameAndTypeInfo.getName(), false, _settings.isUnicodeOutputEnabled()),
StringUtilities.escape(nameAndTypeInfo.getType(), false, _settings.isUnicodeOutputEnabled())
)
);
}
@Override
public void visitInvokeDynamicInfo(final ConstantPool.InvokeDynamicInfoEntry info) {
final ConstantPool.NameAndTypeDescriptorEntry nameAndTypeInfo = info.getNameAndTypeDescriptor();
final int startColumn = _output.getColumn();
_output.writeLiteral(info.bootstrapMethodAttributeIndex);
_output.writeDelimiter(", ");
_output.writeDelimiter("#");
_output.writeLiteral(nameAndTypeInfo.nameIndex);
_output.writeDelimiter(".");
_output.writeDelimiter("#");
_output.writeLiteral(nameAndTypeInfo.typeDescriptorIndex);
final int endColumn = _output.getColumn();
final int padding = (14 - (endColumn - startColumn));
final String paddingText = padding > 0 ? StringUtilities.repeat(' ', padding) : "";
_output.writeComment(
format(
paddingText + " // %1$s:%2$s",
StringUtilities.escape(nameAndTypeInfo.getName(), false, _settings.isUnicodeOutputEnabled()),
StringUtilities.escape(nameAndTypeInfo.getType(), false, _settings.isUnicodeOutputEnabled())
)
);
}
@Override
public void visitLongConstant(final ConstantPool.LongConstantEntry info) {
DecompilerHelpers.writePrimitiveValue(_output, info.getConstantValue());
}
@Override
public void visitNameAndTypeDescriptor(final ConstantPool.NameAndTypeDescriptorEntry info) {
final int startColumn = _output.getColumn();
_output.writeDelimiter("#");
_output.writeLiteral(info.nameIndex);
_output.writeDelimiter(".");
_output.writeDelimiter("#");
_output.writeLiteral(info.typeDescriptorIndex);
final int endColumn = _output.getColumn();
final int padding = (14 - (endColumn - startColumn));
final String paddingText = padding > 0 ? StringUtilities.repeat(' ', padding) : "";
_output.writeComment(
format(
paddingText + " // %1$s:%2$s",
StringUtilities.escape(info.getName(), false, _settings.isUnicodeOutputEnabled()),
StringUtilities.escape(info.getType(), false, _settings.isUnicodeOutputEnabled())
)
);
}
@Override
public void visitMethodReference(final ConstantPool.MethodReferenceEntry info) {
final ConstantPool.NameAndTypeDescriptorEntry nameAndTypeInfo = info.getNameAndTypeInfo();
final int startColumn = _output.getColumn();
_output.writeDelimiter("#");
_output.writeLiteral(info.typeInfoIndex);
_output.writeDelimiter(".");
_output.writeDelimiter("#");
_output.writeLiteral(info.nameAndTypeDescriptorIndex);
final int endColumn = _output.getColumn();
final int padding = (14 - (endColumn - startColumn));
final String paddingText = padding > 0 ? StringUtilities.repeat(' ', padding) : "";
_output.writeComment(
format(
paddingText + " // %1$s.%2$s:%3$s",
StringUtilities.escape(info.getClassName(), false, _settings.isUnicodeOutputEnabled()),
StringUtilities.escape(nameAndTypeInfo.getName(), false, _settings.isUnicodeOutputEnabled()),
StringUtilities.escape(nameAndTypeInfo.getType(), false, _settings.isUnicodeOutputEnabled())
)
);
}
@Override
public void visitMethodHandle(final ConstantPool.MethodHandleEntry info) {
final ConstantPool.ReferenceEntry reference = info.getReference();
final ConstantPool.NameAndTypeDescriptorEntry nameAndTypeInfo = reference.getNameAndTypeInfo();
final int startColumn = _output.getColumn();
_output.writeLiteral(info.referenceKind);
_output.write(' ');
_output.writeDelimiter("#");
_output.writeLiteral(reference.typeInfoIndex);
_output.writeDelimiter(".");
_output.writeDelimiter("#");
_output.writeLiteral(reference.nameAndTypeDescriptorIndex);
final int endColumn = _output.getColumn();
final int padding = (28 - (endColumn - startColumn));
final String paddingText = padding > 0 ? StringUtilities.repeat(' ', padding) : "";
_output.writeComment(
format(
paddingText + " // %1$s.%2$s:%3$s",
StringUtilities.escape(reference.getClassName(), false, _settings.isUnicodeOutputEnabled()),
StringUtilities.escape(nameAndTypeInfo.getName(), false, _settings.isUnicodeOutputEnabled()),
StringUtilities.escape(nameAndTypeInfo.getType(), false, _settings.isUnicodeOutputEnabled())
)
);
}
@Override
public void visitMethodType(final ConstantPool.MethodTypeEntry info) {
_output.write("%1$-13s", info.getType());
}
@Override
public void visitStringConstant(final ConstantPool.StringConstantEntry info) {
_output.writeDelimiter("#");
_output.writeLiteral(format("%1$-14d", info.stringIndex));
_output.writeComment(format("// %1$s", StringUtilities.escape(info.getValue(), true, _settings.isUnicodeOutputEnabled())));
}
@Override
public void visitUtf8StringConstant(final ConstantPool.Utf8StringConstantEntry info) {
DecompilerHelpers.writePrimitiveValue(_output, info.getConstantValue());
}
@Override
public void visitEnd() {
}
}
