com.android.dx.dex.code

Class CodeAddress

java.lang.Object

com.android.dx.dex.code.DalvInsn

com.android.dx.dex.code.ZeroSizeInsn

com.android.dx.dex.code.CodeAddress

public final class CodeAddress
extends ZeroSizeInsn

Pseudo-instruction which is used to track an address within a code array. Instances are used for such things as branch targets and exception handler ranges. Its code size is zero, and so instances do not in general directly wind up in any output (either human-oriented or binary file).

Constructor Summary

Constructors

Constructor and Description
CodeAddress(SourcePosition position) Constructs an instance.
CodeAddress(SourcePosition position, boolean bindsClosely) Constructs an instance.

Method Summary

Modifier and Type	Method and Description
protected java.lang.String	argString() Gets the string form for any arguments to this instance.
boolean	getBindsClosely() Gets whether this address binds closely to the following "real" (non-zero-length) instruction.
protected java.lang.String	listingString0(boolean noteIndices) Helper for DalvInsn.listingString(java.lang.String, int, boolean), which returns the string form of this instance suitable for inclusion in a human-oriented listing dump, not including the instruction address and without respect for any output formatting.
DalvInsn	withRegisters(RegisterSpecList registers) Returns an instance that is just like this one, except that the register list is replaced by the given one, and its address is reset.

Methods inherited from class com.android.dx.dex.code.ZeroSizeInsn

codeSize, withOpcode, withRegisterOffset, writeTo

Methods inherited from class com.android.dx.dex.code.DalvInsn

cstComment, cstString, expandedPrefix, expandedSuffix, expandedVersion, getAddress, getLowRegVersion, getMinimumRegisterRequirement, getNextAddress, getOpcode, getPosition, getRegisters, hasAddress, hasResult, identifierString, listingString, makeMove, setAddress, toString, withMapper

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

CodeAddress

public CodeAddress(SourcePosition position)

Constructs an instance. The output address of this instance is initially unknown (-1).

Parameters:

position - non-null; source position

CodeAddress

public CodeAddress(SourcePosition position,
                   boolean bindsClosely)

Constructs an instance. The output address of this instance is initially unknown (-1).

Parameters:

position - non-null; source position

bindsClosely - if the address should bind closely to the following real instruction.

Method Detail

withRegisters

public final DalvInsn withRegisters(RegisterSpecList registers)

Returns an instance that is just like this one, except that the register list is replaced by the given one, and its address is reset.

Specified by:

withRegisters in class DalvInsn

Parameters:

registers - non-null; new register list

Returns:

non-null; an appropriately-constructed instance

argString

protected java.lang.String argString()

Gets the string form for any arguments to this instance. Subclasses must override this.

Specified by:

argString in class DalvInsn

Returns:

null-ok; the string version of any arguments or null if there are none

listingString0

protected java.lang.String listingString0(boolean noteIndices)

Helper for DalvInsn.listingString(java.lang.String, int, boolean), which returns the string form of this instance suitable for inclusion in a human-oriented listing dump, not including the instruction address and without respect for any output formatting. This method should return null if this instance should not appear in a listing.

Specified by:

listingString0 in class DalvInsn

Parameters:

noteIndices - whether to include an explicit notation of constant pool indices

Returns:

null-ok; the listing string

getBindsClosely

public boolean getBindsClosely()

Gets whether this address binds closely to the following "real" (non-zero-length) instruction. When a prefix is added to an instruction (for example, to move a value from a high register to a low register), this determines whether this CodeAddress will point to the prefix, or to the instruction itself. If bindsClosely is true, the address will point to the instruction itself, otherwise it will point to the prefix (if any)

Returns:

true if this address binds closely to the next real instruction