Package org.spongepowered.asm.mixin.injection.modify

Class AfterStoreLocal

java.lang.Object

org.spongepowered.asm.mixin.injection.InjectionPoint

org.spongepowered.asm.mixin.injection.modify.BeforeLoadLocal

org.spongepowered.asm.mixin.injection.modify.AfterStoreLocal

public class AfterStoreLocal
extends BeforeLoadLocal

This injection point is a companion for the ModifyVariable injector which searches for STORE operations which match the local variables described by the injector's defined discriminators.

This allows you consumers to specify an injection immediately after a local variable is written in a method. Specify an ordinal of n to match the n + 1^th access of the variable in question.

ordinal

The ordinal position of the STORE opcode for the matching local variable to search for, if not specified then the injection point returns all opcodes for which the parent annotation's discriminators match. The default value is -1 which supresses ordinal checking.

Example:

   @ModifyVariable(
       method = "md",
       ordinal = 1,
       at = @At(
           value = "STORE",
           ordinal = 0
       )
   )

Note that if value is the only parameter specified, it can be omitted:

   @At("STORE")

Important Note: Unlike other standard injection points, this class matches the insn immediately after the matching point.

Nested Class Summary

Nested classes/interfaces inherited from class org.spongepowered.asm.mixin.injection.InjectionPoint

InjectionPoint.AtCode, InjectionPoint.Flags, InjectionPoint.RestrictTargetLevel, InjectionPoint.Specifier

Field Summary

Fields

Modifier and Type	Field	Description
protected final IMixinContext	mixin

Fields inherited from class org.spongepowered.asm.mixin.injection.modify.BeforeLoadLocal

discriminator, opcode, ordinal, returnType

Fields inherited from class org.spongepowered.asm.mixin.injection.InjectionPoint

DEFAULT_ALLOWED_SHIFT_BY, MAX_ALLOWED_SHIFT_BY

Constructor Summary

Constructors

Constructor	Description
AfterStoreLocal(InjectionPointData data)

Method Summary

Modifier and Type	Method	Description
boolean	find(String desc, org.objectweb.asm.tree.InsnList insns, Collection<org.objectweb.asm.tree.AbstractInsnNode> nodes)	Find injection points in the supplied insn list

Methods inherited from class org.spongepowered.asm.mixin.injection.modify.BeforeLoadLocal

addMessage, toString, toString

Methods inherited from class org.spongepowered.asm.mixin.injection.InjectionPoint

after, and, before, checkPriority, getAtCode, getId, getSlice, getSpecifier, getTargetRestriction, nextNode, or, parse, parse, parse, parse, parse, parse, parse, parse, register, register, setTargetRestriction, shift

Methods inherited from class java.lang.Object

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

Field Details

mixin

protected final IMixinContext mixin

Constructor Details

AfterStoreLocal

public AfterStoreLocal(InjectionPointData data)

Method Details

find

public boolean find(String desc,
 org.objectweb.asm.tree.InsnList insns,
 Collection<org.objectweb.asm.tree.AbstractInsnNode> nodes)

Description copied from class: InjectionPoint

Find injection points in the supplied insn list

Specified by:

find in class InjectionPoint

Parameters:

desc - Method descriptor, supplied to allow return types and arguments etc. to be determined

insns - Insn list to search in, the strategy MUST ONLY add nodes from this list to the nodes collection

nodes - Collection of nodes to populate. Injectors should NOT make any assumptions about the state of this collection and should only call the add() method

Returns:

true if one or more injection points were found