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src/java.xml/share/classes/com/sun/org/apache/bcel/internal/generic/INVOKEINTERFACE.java
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@@ -19,106 +19,119 @@
* limitations under the License.
*/
package com.sun.org.apache.bcel.internal.generic;
-import com.sun.org.apache.bcel.internal.classfile.ConstantPool;
-import com.sun.org.apache.bcel.internal.Constants;
-import com.sun.org.apache.bcel.internal.ExceptionConstants;
+import java.io.DataOutputStream;
+import java.io.IOException;
-import java.io.*;
+import com.sun.org.apache.bcel.internal.Const;
+import com.sun.org.apache.bcel.internal.ExceptionConst;
+import com.sun.org.apache.bcel.internal.classfile.ConstantPool;
import com.sun.org.apache.bcel.internal.util.ByteSequence;
/**
* INVOKEINTERFACE - Invoke interface method
* <PRE>Stack: ..., objectref, [arg1, [arg2 ...]] -> ...</PRE>
*
- * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
+ * @version $Id: INVOKEINTERFACE.java 1747278 2016-06-07 17:28:43Z britter $
+ * @see
+ * <a href="http://docs.oracle.com/javase/specs/jvms/se8/html/jvms-6.html#jvms-6.5.invokeinterface">
+ * The invokeinterface instruction in The Java Virtual Machine Specification</a>
*/
public final class INVOKEINTERFACE extends InvokeInstruction {
+
private int nargs; // Number of arguments on stack (number of stack slots), called "count" in vmspec2
+
/**
* Empty constructor needed for the Class.newInstance() statement in
* Instruction.readInstruction(). Not to be used otherwise.
*/
- INVOKEINTERFACE() {}
+ INVOKEINTERFACE() {
+ }
- public INVOKEINTERFACE(int index, int nargs) {
- super(Constants.INVOKEINTERFACE, index);
- length = 5;
- if(nargs < 1)
+ public INVOKEINTERFACE(final int index, final int nargs) {
+ super(Const.INVOKEINTERFACE, index);
+ super.setLength(5);
+ if (nargs < 1) {
throw new ClassGenException("Number of arguments must be > 0 " + nargs);
-
+ }
this.nargs = nargs;
}
+
/**
* Dump instruction as byte code to stream out.
* @param out Output stream
*/
- public void dump(DataOutputStream out) throws IOException {
- out.writeByte(opcode);
- out.writeShort(index);
+ @Override
+ public void dump( final DataOutputStream out ) throws IOException {
+ out.writeByte(super.getOpcode());
+ out.writeShort(super.getIndex());
out.writeByte(nargs);
out.writeByte(0);
}
+
/**
* The <B>count</B> argument according to the Java Language Specification,
* Second Edition.
*/
- public int getCount() { return nargs; }
+ public int getCount() {
+ return nargs;
+ }
+
/**
* Read needed data (i.e., index) from file.
*/
- protected void initFromFile(ByteSequence bytes, boolean wide)
- throws IOException
- {
+ @Override
+ protected void initFromFile( final ByteSequence bytes, final boolean wide ) throws IOException {
super.initFromFile(bytes, wide);
-
- length = 5;
+ super.setLength(5);
nargs = bytes.readUnsignedByte();
bytes.readByte(); // Skip 0 byte
}
+
/**
* @return mnemonic for instruction with symbolic references resolved
*/
- public String toString(ConstantPool cp) {
+ @Override
+ public String toString( final ConstantPool cp ) {
return super.toString(cp) + " " + nargs;
}
- public int consumeStack(ConstantPoolGen cpg) { // nargs is given in byte-code
+
+ @Override
+ public int consumeStack( final ConstantPoolGen cpg ) { // nargs is given in byte-code
return nargs; // nargs includes this reference
}
- public Class[] getExceptions() {
- Class[] cs = new Class[4 + ExceptionConstants.EXCS_INTERFACE_METHOD_RESOLUTION.length];
-
- System.arraycopy(ExceptionConstants.EXCS_INTERFACE_METHOD_RESOLUTION, 0,
- cs, 0, ExceptionConstants.EXCS_INTERFACE_METHOD_RESOLUTION.length);
- cs[ExceptionConstants.EXCS_INTERFACE_METHOD_RESOLUTION.length+3] = ExceptionConstants.INCOMPATIBLE_CLASS_CHANGE_ERROR;
- cs[ExceptionConstants.EXCS_INTERFACE_METHOD_RESOLUTION.length+2] = ExceptionConstants.ILLEGAL_ACCESS_ERROR;
- cs[ExceptionConstants.EXCS_INTERFACE_METHOD_RESOLUTION.length+1] = ExceptionConstants.ABSTRACT_METHOD_ERROR;
- cs[ExceptionConstants.EXCS_INTERFACE_METHOD_RESOLUTION.length] = ExceptionConstants.UNSATISFIED_LINK_ERROR;
-
- return cs;
+ @Override
+ public Class<?>[] getExceptions() {
+ return ExceptionConst.createExceptions(ExceptionConst.EXCS.EXCS_INTERFACE_METHOD_RESOLUTION,
+ ExceptionConst.UNSATISFIED_LINK_ERROR,
+ ExceptionConst.ABSTRACT_METHOD_ERROR,
+ ExceptionConst.ILLEGAL_ACCESS_ERROR,
+ ExceptionConst.INCOMPATIBLE_CLASS_CHANGE_ERROR);
}
+
/**
* Call corresponding visitor method(s). The order is:
* Call visitor methods of implemented interfaces first, then
* call methods according to the class hierarchy in descending order,
* i.e., the most specific visitXXX() call comes last.
*
* @param v Visitor object
*/
- public void accept(Visitor v) {
+ @Override
+ public void accept( final Visitor v ) {
v.visitExceptionThrower(this);
v.visitTypedInstruction(this);
v.visitStackConsumer(this);
v.visitStackProducer(this);
v.visitLoadClass(this);
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