Package com.android.dx.dex.code

Class OutputCollector

java.lang.Object

com.android.dx.dex.code.OutputCollector

public final class OutputCollector
extends Object

Destination for DalvInsn instances being output. This class receives and collects instructions in two pieces — a primary list and a suffix (generally consisting of adjunct data referred to by the primary list, such as switch case tables) — which it merges and emits back out in the form of a DalvInsnList instance.

Constructor Summary

Constructors

Constructor	Description
OutputCollector(DexOptions dexOptions, int initialCapacity, int suffixInitialCapacity, int regCount, int paramSize)	Constructs an instance.

Method Summary

Modifier and Type	Method	Description
void	add(DalvInsn insn)	Adds an instruction to the output.
void	addSuffix(DalvInsn insn)	Adds an instruction to the output suffix.
DalvInsn	get(int at)
OutputFinisher	getFinisher()	Gets the results of all the calls on this instance, in the form of an OutputFinisher.
void	reverseBranch(int which, CodeAddress newTarget)	Reverses a branch which is buried a given number of instructions backward in the output.
int	size()

Methods inherited from class java.lang.Object

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

Constructor Details

OutputCollector

public OutputCollector(DexOptions dexOptions,
 int initialCapacity,
 int suffixInitialCapacity,
 int regCount,
 int paramSize)

Constructs an instance.

Parameters:

dexOptions - non-null; options for dex output

initialCapacity - >= 0; initial capacity of the output list

suffixInitialCapacity - >= 0; initial capacity of the output suffix

regCount - >= 0; register count for the method

paramSize - size, in register units, of all the parameters for this method

Method Details

add

public void add(DalvInsn insn)

Adds an instruction to the output.

Parameters:

insn - non-null; the instruction to add

get

public DalvInsn get(int at)

size

public int size()

reverseBranch

public void reverseBranch(int which,
 CodeAddress newTarget)

Reverses a branch which is buried a given number of instructions backward in the output. It is illegal to call this unless the indicated instruction really is a reversible branch.

Parameters:

which - how many instructions back to find the branch; 0 is the most recently added instruction, 1 is the instruction before that, etc.

newTarget - non-null; the new target for the reversed branch

addSuffix

public void addSuffix(DalvInsn insn)

Adds an instruction to the output suffix.

Parameters:

insn - non-null; the instruction to add

getFinisher

public OutputFinisher getFinisher()

Gets the results of all the calls on this instance, in the form of an OutputFinisher.

Returns:

non-null; the output finisher

Throws:

UnsupportedOperationException - if this method has already been called