net.covers1624.coffeegrinder.util.asm

Class LabelRange

java.lang.Object

net.covers1624.coffeegrinder.util.asm.LabelRange

public class LabelRange
extends java.lang.Object

Represents a logical list of Labels as described in Bytecode.

Created by covers1624 on 6/4/21.

Field Summary

Fields

Modifier and Type	Field and Description
org.objectweb.asm.Label	end
java.util.List<org.objectweb.asm.Label>	range
org.objectweb.asm.Label	start

Constructor Summary

Constructors

Constructor and Description
LabelRange(java.util.List<org.objectweb.asm.Label> range)

Method Summary

Modifier and Type	Method and Description
static LabelRange	compute(org.objectweb.asm.tree.InsnList list, org.objectweb.asm.Label start, org.objectweb.asm.Label end, boolean exclusiveEnd) Computes a LabelRange from the given InsnList.
boolean	containsLabel(org.objectweb.asm.Label label) Checks if a given label is contained within the range.
boolean	equals(java.lang.Object o)
static @Nullable LabelRange	extractRange(org.objectweb.asm.tree.InsnList list)
org.objectweb.asm.Label	getEnd() Gets the last label included in this range.
static org.objectweb.asm.Label	getLabelAfter(org.objectweb.asm.tree.InsnList list, org.objectweb.asm.Label target) Get the label declared immediately after the target label.
java.util.List<org.objectweb.asm.Label>	getRange() Gets the ordered list of labels included in this range.
org.objectweb.asm.Label	getStart() Gets the first label included in this range.
int	hashCode()

Methods inherited from class java.lang.Object

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

Field Detail

start

public final org.objectweb.asm.Label start

end

public final org.objectweb.asm.Label end

range

public final java.util.List<org.objectweb.asm.Label> range

Constructor Detail

LabelRange

public LabelRange(java.util.List<org.objectweb.asm.Label> range)

Method Detail

getStart

public org.objectweb.asm.Label getStart()

Gets the first label included in this range.

Returns:

The Label.

getEnd

public org.objectweb.asm.Label getEnd()

Gets the last label included in this range. This may be the same as getStart()

Returns:

The Label.

getRange

public java.util.List<org.objectweb.asm.Label> getRange()

Gets the ordered list of labels included in this range. This is exactly how they appear in Bytecode, and are not sorted.

Returns:

The range.

containsLabel

public boolean containsLabel(org.objectweb.asm.Label label)

Checks if a given label is contained within the range.

Parameters:

label - The label to check.

Returns:

If the label is contained within the range.

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

compute

public static LabelRange compute(org.objectweb.asm.tree.InsnList list,
                                 org.objectweb.asm.Label start,
                                 org.objectweb.asm.Label end,
                                 boolean exclusiveEnd)

Computes a LabelRange from the given InsnList.

Parameters:

list - The InsnList to extract the range from.

start - The first Label to be included in the range.

end - The last Label to be included in the range.

exclusiveEnd - If the provided end Label should be exclusive or inclusive.

Returns:

The built range.

Throws:

java.lang.IllegalStateException - If either the start or end label are not included in the provided InsnList.

getLabelAfter

public static org.objectweb.asm.Label getLabelAfter(org.objectweb.asm.tree.InsnList list,
                                                    org.objectweb.asm.Label target)

Get the label declared immediately after the target label.

Parameters:

list - The InsnList to search.

target - The target label to search for.

Returns:

The label after the target.

extractRange

@Nullable
public static @Nullable LabelRange extractRange(org.objectweb.asm.tree.InsnList list)