DOpcodeType
extends Enum<E extends Enum<E>>| java.lang.Object | ||
| ↳ | java.lang.Enum<E extends java.lang.Enum<E>> | |
| ↳ | com.pnfsoftware.jeb.core.units.code.android.ir.DOpcodeType | |
Class Overview
This enumeration defines the opcode types of the intermediate representation (IR)
instructions used by dexdec. An IR instruction has two optional
operands, noted opnd1 and opnd2.
Note that the IR_STORE_EXCEPTION opcode can only be the first instruction of an
exception handler block. The IR_JUMP, IR_JCOND, IR_SWITCH,
IR_RETURN, IR_THROW can only be the last instruction of a basic block.
See Also
Summary
| Enum Values | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| DOpcodeType | IR_ASSIGN | Assignment. | |||||||||
| DOpcodeType | IR_INVOKE | General method invocation - opnd1: null - opnd2: an IDInvokeInfo expression (call, new,
new-array, alloc-object)
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| DOpcodeType | IR_JCOND | Conditional jump - opnd1: the IDTarget, branched to if the conditional expression is true- opnd2: the conditional expression, IDPredicate
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| DOpcodeType | IR_JUMP | Unconditional jump - opnd1: the IDTarget- opnd2: null |
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| DOpcodeType | IR_MONITOR_ENTER | Notify the beginning of a synchronized block of code. | |||||||||
| DOpcodeType | IR_MONITOR_EXIT | Notify the end of a synchronized block of code. | |||||||||
| DOpcodeType | IR_NOP | No-operation instruction - opnd1: null - opnd2: null |
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| DOpcodeType | IR_RETURN | Method return - opnd1: null - opnd2: optional IDExpression return value (may be null)
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| DOpcodeType | IR_STORE_EXCEPTION | Store a caught typed exception to a variable Very restrictive opcode, to be used only at the beginning of exception handlers blocks. |
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| DOpcodeType | IR_SWITCH | Switch (n-way conditional jump) - opnd1: the IDSwitchData- opnd2: the switched-on IDExpression
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| DOpcodeType | IR_THROW | Raise an error or exception - opnd1: null - opnd2: non-null throwable, an IDExpression (should be typed as
java.lang.Throwable or any of its sub-types)
|
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| Public Methods | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| final int |
indexOf(DOpcodeType... candidates)
Determine whether this opcode matches one of the provided candidate opcodes.
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| final boolean |
isAnyOf(DOpcodeType... candidates)
Determine whether this opcode matches one of the provided candidate opcodes.
| ||||||||||
| static DOpcodeType | valueOf(String name) | ||||||||||
| final static DOpcodeType[] | values() | ||||||||||
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[Expand]
Inherited Methods | |||||||||||
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From class
java.lang.Enum
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From class
java.lang.Object
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From interface
java.lang.Comparable
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Enum Values
public static final DOpcodeType IR_ASSIGN
Assignment.
- opnd1: destination (left) member, IDExpression
- opnd2: source (right) member, IDExpression
public static final DOpcodeType IR_INVOKE
General method invocation
- opnd1: null
- opnd2: an IDInvokeInfo expression (call, new,
new-array, alloc-object)
public static final DOpcodeType IR_JCOND
Conditional jump
- opnd1: the IDTarget, branched to if the conditional expression is true
- opnd2: the conditional expression, IDPredicate
public static final DOpcodeType IR_MONITOR_ENTER
Notify the beginning of a synchronized block of code.
Ideally, should not be translated to opcodes: instead the structurer should combine these
opcodes with try-catch block to build synchronized code blocks.
However, if this is not possible, invalid statements (similar to 'goto') should be
issued.
- opnd1: null
- opnd2: the lock object IDExpression
public static final DOpcodeType IR_MONITOR_EXIT
Notify the end of a synchronized block of code.
Ideally, should not be translated to opcodes: instead the structurer should combine these
opcodes with try-catch block to build synchronized code blocks.
However, if this is not possible, invalid statements (similar to 'goto') should be
issued.
- opnd1: null
- opnd2: the lock object IDExpression
public static final DOpcodeType IR_RETURN
Method return
- opnd1: null
- opnd2: optional IDExpression return value (may be null)
public static final DOpcodeType IR_STORE_EXCEPTION
Store a caught typed exception to a variable
Very restrictive opcode, to be used only at the beginning of exception handlers blocks.
(equivalent to Dalvik's move-exception.)
- opnd1: IDVar
- opnd2: null
public static final DOpcodeType IR_SWITCH
Switch (n-way conditional jump)
- opnd1: the IDSwitchData
- opnd2: the switched-on IDExpression
public static final DOpcodeType IR_THROW
Raise an error or exception
- opnd1: null
- opnd2: non-null throwable, an IDExpression (should be typed as
java.lang.Throwable or any of its sub-types)
Public Methods
public final int indexOf (DOpcodeType... candidates)
Determine whether this opcode matches one of the provided candidate opcodes.
Parameters
| candidates | candidate opcodes |
|---|
Returns
- an index, -1 if not found
public final boolean isAnyOf (DOpcodeType... candidates)
Determine whether this opcode matches one of the provided candidate opcodes.
Parameters
| candidates | candidate opcodes |
|---|