Class SourceInterpreter
- java.lang.Object
-
- org.objectweb.asm.tree.analysis.Interpreter<SourceValue>
-
- org.objectweb.asm.tree.analysis.SourceInterpreter
-
- All Implemented Interfaces:
org.objectweb.asm.Opcodes
public class SourceInterpreter extends Interpreter<SourceValue> implements org.objectweb.asm.Opcodes
AnInterpreter
forSourceValue
values.
-
-
Field Summary
-
Fields inherited from class org.objectweb.asm.tree.analysis.Interpreter
api
-
Fields inherited from interface org.objectweb.asm.Opcodes
AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_MANDATED, ACC_MODULE, ACC_NATIVE, ACC_OPEN, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_RECORD, ACC_STATIC, ACC_STATIC_PHASE, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_TRANSITIVE, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASM10_EXPERIMENTAL, ASM4, ASM5, ASM6, ASM7, ASM8, ASM9, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DOUBLE, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F_APPEND, F_CHOP, F_FULL, F_NEW, F_SAME, F_SAME1, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAT, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GOTO, H_GETFIELD, H_GETSTATIC, H_INVOKEINTERFACE, H_INVOKESPECIAL, H_INVOKESTATIC, H_INVOKEVIRTUAL, H_NEWINVOKESPECIAL, H_PUTFIELD, H_PUTSTATIC, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, IMUL, INEG, INSTANCEOF, INTEGER, INVOKEDYNAMIC, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDIV, LLOAD, LMUL, LNEG, LONG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, NULL, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SOURCE_DEPRECATED, SOURCE_MASK, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, TOP, UNINITIALIZED_THIS, V_PREVIEW, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6, V1_7, V1_8, V10, V11, V12, V13, V14, V15, V16, V17, V18, V9
-
-
Constructor Summary
Constructors Modifier Constructor Description SourceInterpreter()
Constructs a newSourceInterpreter
for the latest ASM API version.protected
SourceInterpreter(int api)
Constructs a newSourceInterpreter
.
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description SourceValue
binaryOperation(org.objectweb.asm.tree.AbstractInsnNode insn, SourceValue value1, SourceValue value2)
Interprets a bytecode instruction with two arguments.SourceValue
copyOperation(org.objectweb.asm.tree.AbstractInsnNode insn, SourceValue value)
Interprets a bytecode instruction that moves a value on the stack or to or from local variables.SourceValue
merge(SourceValue value1, SourceValue value2)
Merges two values.SourceValue
naryOperation(org.objectweb.asm.tree.AbstractInsnNode insn, java.util.List<? extends SourceValue> values)
Interprets a bytecode instruction with a variable number of arguments.SourceValue
newOperation(org.objectweb.asm.tree.AbstractInsnNode insn)
Interprets a bytecode instruction without arguments.SourceValue
newValue(org.objectweb.asm.Type type)
Creates a new value that represents the given type.void
returnOperation(org.objectweb.asm.tree.AbstractInsnNode insn, SourceValue value, SourceValue expected)
Interprets a bytecode return instruction.SourceValue
ternaryOperation(org.objectweb.asm.tree.AbstractInsnNode insn, SourceValue value1, SourceValue value2, SourceValue value3)
Interprets a bytecode instruction with three arguments.SourceValue
unaryOperation(org.objectweb.asm.tree.AbstractInsnNode insn, SourceValue value)
Interprets a bytecode instruction with a single argument.-
Methods inherited from class org.objectweb.asm.tree.analysis.Interpreter
newEmptyValue, newExceptionValue, newParameterValue, newReturnTypeValue
-
-
-
-
Constructor Detail
-
SourceInterpreter
public SourceInterpreter()
Constructs a newSourceInterpreter
for the latest ASM API version. Subclasses must not use this constructor. Instead, they must use theSourceInterpreter(int)
version.
-
SourceInterpreter
protected SourceInterpreter(int api)
Constructs a newSourceInterpreter
.- Parameters:
api
- the ASM API version supported by this interpreter. Must be one ofOpcodes.ASM4
,Opcodes.ASM5
,Opcodes.ASM6
,Opcodes.ASM7
,Opcodes.ASM8
or orOpcodes.ASM9
.
-
-
Method Detail
-
newValue
public SourceValue newValue(org.objectweb.asm.Type type)
Description copied from class:Interpreter
Creates a new value that represents the given type.Called for method parameters (including
this
), exception handler variable and withnull
type for variables reserved by long and double types.An interpreter may choose to implement one or more of
Interpreter.newReturnTypeValue(Type)
,Interpreter.newParameterValue(boolean, int, Type)
,Interpreter.newEmptyValue(int)
,Interpreter.newExceptionValue(TryCatchBlockNode, Frame, Type)
to distinguish different types of new value.- Specified by:
newValue
in classInterpreter<SourceValue>
- Parameters:
type
- a primitive or reference type, or null to represent an uninitialized value.- Returns:
- a value that represents the given type. The size of the returned value must be equal to the size of the given type.
-
newOperation
public SourceValue newOperation(org.objectweb.asm.tree.AbstractInsnNode insn)
Description copied from class:Interpreter
Interprets a bytecode instruction without arguments. This method is called for the following opcodes:ACONST_NULL, ICONST_M1, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, LCONST_0, LCONST_1, FCONST_0, FCONST_1, FCONST_2, DCONST_0, DCONST_1, BIPUSH, SIPUSH, LDC, JSR, GETSTATIC, NEW
- Specified by:
newOperation
in classInterpreter<SourceValue>
- Parameters:
insn
- the bytecode instruction to be interpreted.- Returns:
- the result of the interpretation of the given instruction.
-
copyOperation
public SourceValue copyOperation(org.objectweb.asm.tree.AbstractInsnNode insn, SourceValue value)
Description copied from class:Interpreter
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
- Specified by:
copyOperation
in classInterpreter<SourceValue>
- Parameters:
insn
- the bytecode instruction to be interpreted.value
- the value that must be moved by the instruction.- Returns:
- the result of the interpretation of the given instruction. The returned value must be
equal
to the given value.
-
unaryOperation
public SourceValue unaryOperation(org.objectweb.asm.tree.AbstractInsnNode insn, SourceValue value)
Description copied from class:Interpreter
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
- Specified by:
unaryOperation
in classInterpreter<SourceValue>
- Parameters:
insn
- the bytecode instruction to be interpreted.value
- the argument of the instruction to be interpreted.- Returns:
- the result of the interpretation of the given instruction.
-
binaryOperation
public SourceValue binaryOperation(org.objectweb.asm.tree.AbstractInsnNode insn, SourceValue value1, SourceValue value2)
Description copied from class:Interpreter
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
- Specified by:
binaryOperation
in classInterpreter<SourceValue>
- Parameters:
insn
- the bytecode instruction to be interpreted.value1
- the first argument of the instruction to be interpreted.value2
- the second argument of the instruction to be interpreted.- Returns:
- the result of the interpretation of the given instruction.
-
ternaryOperation
public SourceValue ternaryOperation(org.objectweb.asm.tree.AbstractInsnNode insn, SourceValue value1, SourceValue value2, SourceValue value3)
Description copied from class:Interpreter
Interprets a bytecode instruction with three arguments. This method is called for the following opcodes:IASTORE, LASTORE, FASTORE, DASTORE, AASTORE, BASTORE, CASTORE, SASTORE
- Specified by:
ternaryOperation
in classInterpreter<SourceValue>
- Parameters:
insn
- the bytecode instruction to be interpreted.value1
- the first argument of the instruction to be interpreted.value2
- the second argument of the instruction to be interpreted.value3
- the third argument of the instruction to be interpreted.- Returns:
- the result of the interpretation of the given instruction.
-
naryOperation
public SourceValue naryOperation(org.objectweb.asm.tree.AbstractInsnNode insn, java.util.List<? extends SourceValue> values)
Description copied from class:Interpreter
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
- Specified by:
naryOperation
in classInterpreter<SourceValue>
- Parameters:
insn
- the bytecode instruction to be interpreted.values
- the arguments of the instruction to be interpreted.- Returns:
- the result of the interpretation of the given instruction.
-
returnOperation
public void returnOperation(org.objectweb.asm.tree.AbstractInsnNode insn, SourceValue value, SourceValue expected)
Description copied from class:Interpreter
Interprets a bytecode return instruction. This method is called for the following opcodes:IRETURN, LRETURN, FRETURN, DRETURN, ARETURN
- Specified by:
returnOperation
in classInterpreter<SourceValue>
- Parameters:
insn
- the bytecode instruction to be interpreted.value
- the argument of the instruction to be interpreted.expected
- the expected return type of the analyzed method.
-
merge
public SourceValue merge(SourceValue value1, SourceValue value2)
Description copied from class:Interpreter
Merges two values. The merge operation must return a value that represents both values (for instance, if the two values are two types, the merged value must be a common super type of the two types. If the two values are integer intervals, the merged value must be an interval that contains the previous ones. Likewise for other types of values).- Specified by:
merge
in classInterpreter<SourceValue>
- Parameters:
value1
- a value.value2
- another value.- Returns:
- the merged value. If the merged value is equal to
value1
, this method must returnvalue1
.
-
-