asm-analysis 9.6 · org.objectweb.asm.tree.analysis.BasicVerifier

Access	Constructor and Description
public	BasicVerifier() Constructs a new `BasicVerifier` for the latest ASM API version.
protected	BasicVerifier(final int the ASM API version supported by this interpreter. Must be one of the `ASM`x values in `Opcodes`. api) Constructs a new `BasicVerifier`.

Method Summary

Modifier and Type	Method and Description
public BasicValue	binaryOperation(final AbstractInsnNode the bytecode instruction to be interpreted. insn, final BasicValue the first argument of the instruction to be interpreted. value1, final BasicValue the second argument of the instruction to be interpreted. value2) Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.binaryOperation. Interprets a bytecode instruction with two arguments.
public BasicValue	copyOperation(final AbstractInsnNode the bytecode instruction to be interpreted. insn, final BasicValue the value that must be moved by the instruction. value) Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.copyOperation. Interprets a bytecode instruction that moves a value on the stack or to or from local variables.
protected BasicValue	Returns: the value corresponding to the type of the elements of 'objectArrayValue'. getElementValue(final BasicValue a value corresponding to array of object (or array) references. objectArrayValue) Returns the value corresponding to the type of the elements of the given array reference value.
protected boolean	Returns: whether 'value' corresponds to an array reference. isArrayValue(final BasicValue a value. value) Returns whether the given value corresponds to an array reference.
protected boolean	Returns: whether the type corresponding to 'value' is a subtype of the type corresponding to 'expected'. isSubTypeOf(final BasicValue a value. value, final BasicValue another value. expected) Returns whether the type corresponding to the first argument is a subtype of the type corresponding to the second argument.
public BasicValue	naryOperation(final AbstractInsnNode the bytecode instruction to be interpreted. insn, final List<? extends BasicValue> the arguments of the instruction to be interpreted. values) Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.naryOperation. Interprets a bytecode instruction with a variable number of arguments.
public void	returnOperation(final AbstractInsnNode the bytecode instruction to be interpreted. insn, final BasicValue the argument of the instruction to be interpreted. value, final BasicValue the expected return type of the analyzed method. expected) Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.returnOperation. Interprets a bytecode return instruction.
public BasicValue	ternaryOperation(final AbstractInsnNode the bytecode instruction to be interpreted. insn, final BasicValue the first argument of the instruction to be interpreted. value1, final BasicValue the second argument of the instruction to be interpreted. value2, final BasicValue the third argument of the instruction to be interpreted. value3) Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.ternaryOperation. Interprets a bytecode instruction with three arguments.
public BasicValue	unaryOperation(final AbstractInsnNode the bytecode instruction to be interpreted. insn, final BasicValue the argument of the instruction to be interpreted. value) Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.unaryOperation. Interprets a bytecode instruction with a single argument.

Inherited from org.objectweb.asm.tree.analysis.BasicInterpreter:: merge newOperation newValue

BasicVerifier	back to summary
public BasicVerifier() Constructs a new `BasicVerifier` for the latest ASM API version. Subclasses must not use this constructor. Instead, they must use the `BasicVerifier(int)` version.

BasicVerifier	back to summary
protected BasicVerifier(final int api) Constructs a new `BasicVerifier`. Parameters api:int the ASM API version supported by this interpreter. Must be one of the `ASM`x values in `Opcodes`.

Method Detail

binaryOperation	back to summary
public BasicValue binaryOperation(final AbstractInsnNode insn, final BasicValue value1, final BasicValue value2) throws AnalyzerException Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.binaryOperation. Doc from org.objectweb.asm.tree.analysis.Interpreter.binaryOperation. Interprets a bytecode instruction with two arguments. This method is called for the following opcodes: IALOAD, LALOAD, FALOAD, DALOAD, AALOAD, BALOAD, CALOAD, SALOAD, IADD, LADD, FADD, DADD, ISUB, LSUB, FSUB, DSUB, IMUL, LMUL, FMUL, DMUL, IDIV, LDIV, FDIV, DDIV, IREM, LREM, FREM, DREM, ISHL, LSHL, ISHR, LSHR, IUSHR, LUSHR, IAND, LAND, IOR, LOR, IXOR, LXOR, LCMP, FCMPL, FCMPG, DCMPL, DCMPG, IF_ICMPEQ, IF_ICMPNE, IF_ICMPLT, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ACMPEQ, IF_ACMPNE, PUTFIELD Parameters insn:AbstractInsnNode the bytecode instruction to be interpreted. value1:BasicValue the first argument of the instruction to be interpreted. value2:BasicValue the second argument of the instruction to be interpreted. Returns:BasicValue the result of the interpretation of the given instruction. Annotations @Override Exceptions AnalyzerException: if an error occurred during the interpretation.

binaryOperation

back to summary

public BasicValue binaryOperation(final AbstractInsnNode insn, final BasicValue value1, final BasicValue value2) throws AnalyzerException

Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.binaryOperation.

Doc from org.objectweb.asm.tree.analysis.Interpreter.binaryOperation.

Interprets a bytecode instruction with two arguments. This method is called for the following opcodes:

IALOAD, LALOAD, FALOAD, DALOAD, AALOAD, BALOAD, CALOAD, SALOAD, IADD, LADD, FADD, DADD, ISUB, LSUB, FSUB, DSUB, IMUL, LMUL, FMUL, DMUL, IDIV, LDIV, FDIV, DDIV, IREM, LREM, FREM, DREM, ISHL, LSHL, ISHR, LSHR, IUSHR, LUSHR, IAND, LAND, IOR, LOR, IXOR, LXOR, LCMP, FCMPL, FCMPG, DCMPL, DCMPG, IF_ICMPEQ, IF_ICMPNE, IF_ICMPLT, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ACMPEQ, IF_ACMPNE, PUTFIELD

Parameters

insn:AbstractInsnNode: the bytecode instruction to be interpreted.
value1:BasicValue: the first argument of the instruction to be interpreted.
value2:BasicValue: the second argument of the instruction to be interpreted.

Returns:BasicValue

the result of the interpretation of the given instruction.

Annotations

@Override

Exceptions

AnalyzerException:: if an error occurred during the interpretation.

copyOperation back to summary

copyOperation	back to summary
public BasicValue copyOperation(final AbstractInsnNode insn, final BasicValue value) throws AnalyzerException Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.copyOperation. Doc from org.objectweb.asm.tree.analysis.Interpreter.copyOperation. Interprets a bytecode instruction that moves a value on the stack or to or from local variables. This method is called for the following opcodes: ILOAD, LLOAD, FLOAD, DLOAD, ALOAD, ISTORE, LSTORE, FSTORE, DSTORE, ASTORE, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, SWAP Parameters insn:AbstractInsnNode the bytecode instruction to be interpreted. value:BasicValue the value that must be moved by the instruction. Returns:BasicValue the result of the interpretation of the given instruction. The returned value must be `equal` to the given value. Annotations @Override Exceptions AnalyzerException: if an error occurred during the interpretation.

public BasicValue copyOperation(final AbstractInsnNode insn, final BasicValue value) throws AnalyzerException

Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.copyOperation.

Doc from org.objectweb.asm.tree.analysis.Interpreter.copyOperation.

Interprets a bytecode instruction that moves a value on the stack or to or from local variables. This method is called for the following opcodes:

ILOAD, LLOAD, FLOAD, DLOAD, ALOAD, ISTORE, LSTORE, FSTORE, DSTORE, ASTORE, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, SWAP

Parameters

insn:AbstractInsnNode: the bytecode instruction to be interpreted.
value:BasicValue: the value that must be moved by the instruction.

Returns:BasicValue

the result of the interpretation of the given instruction. The returned value must be equal to the given value.

Annotations

@Override

Exceptions

AnalyzerException:: if an error occurred during the interpretation.

getElementValue	back to summary
protected BasicValue getElementValue(final BasicValue objectArrayValue) throws AnalyzerException Returns the value corresponding to the type of the elements of the given array reference value. Parameters objectArrayValue:BasicValue a value corresponding to array of object (or array) references. Returns:BasicValue the value corresponding to the type of the elements of 'objectArrayValue'. Exceptions AnalyzerException: if objectArrayValue does not correspond to an array type.

getElementValue

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protected BasicValue getElementValue(final BasicValue objectArrayValue) throws AnalyzerException

Returns the value corresponding to the type of the elements of the given array reference value.

Parameters

objectArrayValue:BasicValue: a value corresponding to array of object (or array) references.

Returns:BasicValue

the value corresponding to the type of the elements of 'objectArrayValue'.

Exceptions

AnalyzerException:: if objectArrayValue does not correspond to an array type.

isArrayValue	back to summary
protected boolean isArrayValue(final BasicValue value) Returns whether the given value corresponds to an array reference. Parameters value:BasicValue a value. Returns:boolean whether 'value' corresponds to an array reference.

isArrayValue

back to summary

protected boolean isArrayValue(final BasicValue value)

Returns whether the given value corresponds to an array reference.

Parameters

value:BasicValue: a value.

Returns:boolean

whether 'value' corresponds to an array reference.

isSubTypeOf	back to summary
protected boolean isSubTypeOf(final BasicValue value, final BasicValue expected) Returns whether the type corresponding to the first argument is a subtype of the type corresponding to the second argument. Parameters value:BasicValue a value. expected:BasicValue another value. Returns:boolean whether the type corresponding to 'value' is a subtype of the type corresponding to 'expected'.

isSubTypeOf

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protected boolean isSubTypeOf(final BasicValue value, final BasicValue expected)

Returns whether the type corresponding to the first argument is a subtype of the type corresponding to the second argument.

Parameters

value:BasicValue: a value.
expected:BasicValue: another value.

Returns:boolean

whether the type corresponding to 'value' is a subtype of the type corresponding to 'expected'.

naryOperation	back to summary
public BasicValue naryOperation(final AbstractInsnNode insn, final List<? extends BasicValue> values) throws AnalyzerException Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.naryOperation. Doc from org.objectweb.asm.tree.analysis.Interpreter.naryOperation. Interprets a bytecode instruction with a variable number of arguments. This method is called for the following opcodes: INVOKEVIRTUAL, INVOKESPECIAL, INVOKESTATIC, INVOKEINTERFACE, MULTIANEWARRAY and INVOKEDYNAMIC Parameters insn:AbstractInsnNode the bytecode instruction to be interpreted. values:List<? extends BasicValue> the arguments of the instruction to be interpreted. Returns:BasicValue the result of the interpretation of the given instruction. Annotations @Override Exceptions AnalyzerException: if an error occurred during the interpretation.

naryOperation

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public BasicValue naryOperation(final AbstractInsnNode insn, final List<? extends BasicValue> values) throws AnalyzerException

Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.naryOperation.

Doc from org.objectweb.asm.tree.analysis.Interpreter.naryOperation.

Interprets a bytecode instruction with a variable number of arguments. This method is called for the following opcodes:

INVOKEVIRTUAL, INVOKESPECIAL, INVOKESTATIC, INVOKEINTERFACE, MULTIANEWARRAY and INVOKEDYNAMIC

Parameters

insn:AbstractInsnNode: the bytecode instruction to be interpreted.
values:List<? extends BasicValue>: the arguments of the instruction to be interpreted.

Returns:BasicValue

the result of the interpretation of the given instruction.

Annotations

@Override

Exceptions

AnalyzerException:: if an error occurred during the interpretation.

returnOperation	back to summary
public void returnOperation(final AbstractInsnNode insn, final BasicValue value, final BasicValue expected) throws AnalyzerException Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.returnOperation. Doc from org.objectweb.asm.tree.analysis.Interpreter.returnOperation. Interprets a bytecode return instruction. This method is called for the following opcodes: IRETURN, LRETURN, FRETURN, DRETURN, ARETURN Parameters insn:AbstractInsnNode the bytecode instruction to be interpreted. value:BasicValue the argument of the instruction to be interpreted. expected:BasicValue the expected return type of the analyzed method. Annotations @Override Exceptions AnalyzerException: if an error occurred during the interpretation.

returnOperation

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public void returnOperation(final AbstractInsnNode insn, final BasicValue value, final BasicValue expected) throws AnalyzerException

Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.returnOperation.

Doc from org.objectweb.asm.tree.analysis.Interpreter.returnOperation.

Interprets a bytecode return instruction. This method is called for the following opcodes:

IRETURN, LRETURN, FRETURN, DRETURN, ARETURN

Parameters

insn:AbstractInsnNode: the bytecode instruction to be interpreted.
value:BasicValue: the argument of the instruction to be interpreted.
expected:BasicValue: the expected return type of the analyzed method.

Annotations

@Override

Exceptions

AnalyzerException:: if an error occurred during the interpretation.

ternaryOperation	back to summary
public BasicValue ternaryOperation(final AbstractInsnNode insn, final BasicValue value1, final BasicValue value2, final BasicValue value3) throws AnalyzerException Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.ternaryOperation. Doc from org.objectweb.asm.tree.analysis.Interpreter.ternaryOperation. Interprets a bytecode instruction with three arguments. This method is called for the following opcodes: IASTORE, LASTORE, FASTORE, DASTORE, AASTORE, BASTORE, CASTORE, SASTORE Parameters insn:AbstractInsnNode the bytecode instruction to be interpreted. value1:BasicValue the first argument of the instruction to be interpreted. value2:BasicValue the second argument of the instruction to be interpreted. value3:BasicValue the third argument of the instruction to be interpreted. Returns:BasicValue the result of the interpretation of the given instruction. Annotations @Override Exceptions AnalyzerException: if an error occurred during the interpretation.

ternaryOperation

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public BasicValue ternaryOperation(final AbstractInsnNode insn, final BasicValue value1, final BasicValue value2, final BasicValue value3) throws AnalyzerException

Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.ternaryOperation.

Doc from org.objectweb.asm.tree.analysis.Interpreter.ternaryOperation.

Interprets a bytecode instruction with three arguments. This method is called for the following opcodes:

IASTORE, LASTORE, FASTORE, DASTORE, AASTORE, BASTORE, CASTORE, SASTORE

Parameters

insn:AbstractInsnNode: the bytecode instruction to be interpreted.
value1:BasicValue: the first argument of the instruction to be interpreted.
value2:BasicValue: the second argument of the instruction to be interpreted.
value3:BasicValue: the third argument of the instruction to be interpreted.

Returns:BasicValue

the result of the interpretation of the given instruction.

Annotations

@Override

Exceptions

AnalyzerException:: if an error occurred during the interpretation.

unaryOperation	back to summary
public BasicValue unaryOperation(final AbstractInsnNode insn, final BasicValue value) throws AnalyzerException Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.unaryOperation. Doc from org.objectweb.asm.tree.analysis.Interpreter.unaryOperation. Interprets a bytecode instruction with a single argument. This method is called for the following opcodes: INEG, LNEG, FNEG, DNEG, IINC, I2L, I2F, I2D, L2I, L2F, L2D, F2I, F2L, F2D, D2I, D2L, D2F, I2B, I2C, I2S, IFEQ, IFNE, IFLT, IFGE, IFGT, IFLE, TABLESWITCH, LOOKUPSWITCH, IRETURN, LRETURN, FRETURN, DRETURN, ARETURN, PUTSTATIC, GETFIELD, NEWARRAY, ANEWARRAY, ARRAYLENGTH, ATHROW, CHECKCAST, INSTANCEOF, MONITORENTER, MONITOREXIT, IFNULL, IFNONNULL Parameters insn:AbstractInsnNode the bytecode instruction to be interpreted. value:BasicValue the argument of the instruction to be interpreted. Returns:BasicValue the result of the interpretation of the given instruction. Annotations @Override Exceptions AnalyzerException: if an error occurred during the interpretation.

unaryOperation

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public BasicValue unaryOperation(final AbstractInsnNode insn, final BasicValue value) throws AnalyzerException

Overrides org.objectweb.asm.tree.analysis.BasicInterpreter.unaryOperation.

Doc from org.objectweb.asm.tree.analysis.Interpreter.unaryOperation.

Interprets a bytecode instruction with a single argument. This method is called for the following opcodes:

INEG, LNEG, FNEG, DNEG, IINC, I2L, I2F, I2D, L2I, L2F, L2D, F2I, F2L, F2D, D2I, D2L, D2F, I2B, I2C, I2S, IFEQ, IFNE, IFLT, IFGE, IFGT, IFLE, TABLESWITCH, LOOKUPSWITCH, IRETURN, LRETURN, FRETURN, DRETURN, ARETURN, PUTSTATIC, GETFIELD, NEWARRAY, ANEWARRAY, ARRAYLENGTH, ATHROW, CHECKCAST, INSTANCEOF, MONITORENTER, MONITOREXIT, IFNULL, IFNONNULL

Parameters

insn:AbstractInsnNode: the bytecode instruction to be interpreted.
value:BasicValue: the argument of the instruction to be interpreted.

Returns:BasicValue

the result of the interpretation of the given instruction.

Annotations

@Override

Exceptions

AnalyzerException:: if an error occurred during the interpretation.

public Class BasicVerifier

Field Summary

Constructor Summary

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Constructor Detail

Method Detail