Class WideForm
java.lang.Object
org.apache.commons.compress.harmony.unpack200.bytecode.forms.ByteCodeForm
org.apache.commons.compress.harmony.unpack200.bytecode.forms.VariableInstructionForm
org.apache.commons.compress.harmony.unpack200.bytecode.forms.WideForm
This class implements the byte code form for the wide instruction. Unlike other instructions, it can take multiple forms, depending on what is being widened.
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Field Summary
Fields inherited from class org.apache.commons.compress.harmony.unpack200.bytecode.forms.ByteCodeForm
byteCodeArray, byteCodesByName, WIDENED -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoidsetByteCodeOperands(ByteCode byteCode, OperandManager operandManager, int codeLength) Sets the rewrite of the byteCode.protected voidsetByteCodeOperandsFormat1(int instruction, ByteCode byteCode, OperandManager operandManager, int codeLength) This method sets the rewrite array for the bytecode using Format 1 of the JVM spec: an opcode and two index bytes.protected voidsetByteCodeOperandsFormat2(int instruction, ByteCode byteCode, OperandManager operandManager, int codeLength) This method sets the rewrite array for the bytecode using Format 2 of the JVM spec: an opcode, two index bytes, and two constant bytes.Methods inherited from class org.apache.commons.compress.harmony.unpack200.bytecode.forms.VariableInstructionForm
setRewrite2Bytes, setRewrite4Bytes, setRewrite4BytesMethods inherited from class org.apache.commons.compress.harmony.unpack200.bytecode.forms.ByteCodeForm
calculateOperandPosition, firstOperandIndex, fixUpByteCodeTargets, get, getName, getOpcode, getRewrite, getRewriteCopy, hasMultipleByteCodes, hasNoOperand, nestedMustStartClassPool, operandLength, toString
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Constructor Details
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WideForm
Constructs a new instance with the specified opcode, name, operandType and rewrite.- Parameters:
opcode- index corresponding to the opcode's value.name- String printable name of the opcode.
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Method Details
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setByteCodeOperands
Description copied from class:ByteCodeFormSets the rewrite of the byteCode.- Specified by:
setByteCodeOperandsin classByteCodeForm- Parameters:
byteCode- ByteCode to be updated (!)operandManager- OperandTable from which to draw infocodeLength- Length of bytes (excluding this bytecode) from the beginning of the method. Used in calculating padding for some variable-length bytecodes (such as lookupswitch, tableswitch).
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setByteCodeOperandsFormat1
protected void setByteCodeOperandsFormat1(int instruction, ByteCode byteCode, OperandManager operandManager, int codeLength) This method sets the rewrite array for the bytecode using Format 1 of the JVM spec: an opcode and two index bytes. This is used for ?load/?store/ret- Parameters:
instruction- should be 132byteCode- the byte code whose rewrite array should be updatedoperandManager- the source of the operandscodeLength- ignored
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setByteCodeOperandsFormat2
protected void setByteCodeOperandsFormat2(int instruction, ByteCode byteCode, OperandManager operandManager, int codeLength) This method sets the rewrite array for the bytecode using Format 2 of the JVM spec: an opcode, two index bytes, and two constant bytes. This is used for iinc.- Parameters:
instruction- int should be 132byteCode- ByteCode whose rewrite array should be updatedoperandManager- OperandManager source of the operandscodeLength- ignored
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