com.android.dx.rop.code

Class SwitchInsn

java.lang.Object

com.android.dx.rop.code.Insn

com.android.dx.rop.code.SwitchInsn

All Implemented Interfaces:

ToHuman

public final class SwitchInsn
extends Insn

Instruction which contains switch cases.

Nested Class Summary

Nested classes/interfaces inherited from class com.android.dx.rop.code.Insn

Insn.BaseVisitor, Insn.Visitor

Constructor Summary

Constructors

Constructor and Description
SwitchInsn(Rop opcode, SourcePosition position, RegisterSpec result, RegisterSpecList sources, IntList cases) Constructs an instance.

Method Summary

Modifier and Type	Method and Description
void	accept(Insn.Visitor visitor) Calls the appropriate method on the given visitor, depending on the class of this instance.
boolean	contentEquals(Insn b) Compares Insn contents, since Insn.equals() is defined to be an identity compare.
IntList	getCases() Gets the list of switch cases.
TypeList	getCatches() Gets the list of possibly-caught exceptions.
java.lang.String	getInlineString() Gets an "inline" string portion for toHuman(), if available.
Insn	withAddedCatch(Type type) Returns an instance that is just like this one, except that it has a catch list with the given item appended to the end.
Insn	withNewRegisters(RegisterSpec result, RegisterSpecList sources) Returns an instance that is just like this one, except with new result and source registers.
Insn	withRegisterOffset(int delta) Returns an instance that is just like this one, except that all register references have been offset by the given delta.

Methods inherited from class com.android.dx.rop.code.Insn

canThrow, copy, equals, getLocalAssignment, getOpcode, getPosition, getResult, getSources, hashCode, toHuman, toHumanWithInline, toString, toStringWithInline, withSourceLiteral

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SwitchInsn

public SwitchInsn(Rop opcode,
                  SourcePosition position,
                  RegisterSpec result,
                  RegisterSpecList sources,
                  IntList cases)

Constructs an instance.

Parameters:

opcode - non-null; the opcode

position - non-null; source position

result - null-ok; spec for the result, if any

sources - non-null; specs for all the sources

cases - non-null; list of switch cases

Method Detail

getInlineString

public java.lang.String getInlineString()

Gets an "inline" string portion for toHuman(), if available. This is the portion that appears after the Rop opcode

Overrides:

getInlineString in class Insn

Returns:

null-ok; if non-null, the inline text for toHuman()

getCatches

public TypeList getCatches()

Gets the list of possibly-caught exceptions. This returns StdTypeList.EMPTY if this instruction has no handlers, which can be either if this instruction can't possibly throw or if it merely doesn't handle any of its possible exceptions. To determine whether this instruction can throw, use Insn.canThrow().

Specified by:

getCatches in class Insn

Returns:

non-null; the catches list

accept

public void accept(Insn.Visitor visitor)

Calls the appropriate method on the given visitor, depending on the class of this instance. Subclasses must override this.

Specified by:

accept in class Insn

Parameters:

visitor - non-null; the visitor to call on

withAddedCatch

public Insn withAddedCatch(Type type)

Returns an instance that is just like this one, except that it has a catch list with the given item appended to the end. This method throws an exception if this instance can't possibly throw. To determine whether this instruction can throw, use Insn.canThrow().

Specified by:

withAddedCatch in class Insn

Parameters:

type - non-null; type to append to the catch list

Returns:

non-null; an appropriately-constructed instance

withRegisterOffset

public Insn withRegisterOffset(int delta)

Returns an instance that is just like this one, except that all register references have been offset by the given delta.

Specified by:

withRegisterOffset in class Insn

Parameters:

delta - the amount to offset register references by

Returns:

non-null; an appropriately-constructed instance

contentEquals

public boolean contentEquals(Insn b)

Compares Insn contents, since Insn.equals() is defined to be an identity compare. Insn's are contentEquals() if they have the same opcode, registers, source position, and other metadata.

SwitchInsn always compares false. The current use for this method never encounters SwitchInsns

Overrides:

contentEquals in class Insn

Returns:

true in the case described above

withNewRegisters

public Insn withNewRegisters(RegisterSpec result,
                             RegisterSpecList sources)

Returns an instance that is just like this one, except with new result and source registers.

Specified by:

withNewRegisters in class Insn

Parameters:

result - null-ok; new result register

sources - non-null; new sources registers

Returns:

non-null; an appropriately-constructed instance

getCases

public IntList getCases()

Gets the list of switch cases.

Returns:

non-null; the case list