Files
revanced-patches/src/main/kotlin/app/revanced/extensions/Extensions.kt
2023-06-07 03:46:58 +02:00

73 lines
2.5 KiB
Kotlin

package app.revanced.extensions
import app.revanced.patcher.extensions.MethodFingerprintExtensions.name
import app.revanced.patcher.extensions.InstructionExtensions.addInstruction
import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
import app.revanced.patcher.patch.PatchResultError
import app.revanced.patcher.util.proxy.mutableTypes.MutableClass
import app.revanced.patcher.util.proxy.mutableTypes.MutableMethod
import app.revanced.patches.shared.mapping.misc.patch.ResourceMappingPatch
import org.jf.dexlib2.Opcode
import org.jf.dexlib2.iface.Method
import org.jf.dexlib2.iface.instruction.WideLiteralInstruction
import org.jf.dexlib2.util.MethodUtil
import org.w3c.dom.Node
// TODO: populate this to all patches
/**
* Convert a [MethodFingerprint] to a [PatchResultError].
*
* @return A [PatchResultError] for the [MethodFingerprint].
*/
internal fun MethodFingerprint.toErrorResult() = PatchResultError("Failed to resolve $name")
/**
* Find the [MutableMethod] from a given [Method] in a [MutableClass].
*
* @param method The [Method] to find.
* @return The [MutableMethod].
*/
internal fun MutableClass.findMutableMethodOf(method: Method) = this.methods.first {
MethodUtil.methodSignaturesMatch(it, method)
}
/**
* apply a transform to all methods of the class
*
* @param transform the transformation function. original method goes in, transformed method goes out
*/
internal fun MutableClass.transformMethods(transform: MutableMethod.() -> MutableMethod) {
val transformedMethods = methods.map { it.transform() }
methods.clear()
methods.addAll(transformedMethods)
}
internal fun Node.doRecursively(action: (Node) -> Unit) {
action(this)
for (i in 0 until this.childNodes.length) this.childNodes.item(i).doRecursively(action)
}
internal fun MutableMethod.injectHideViewCall(
insertIndex: Int,
viewRegister: Int,
classDescriptor: String,
targetMethod: String
) = addInstruction(
insertIndex,
"invoke-static { v$viewRegister }, $classDescriptor->$targetMethod(Landroid/view/View;)V"
)
internal fun MutableMethod.findIndexForIdResource(resourceName: String): Int {
fun getIdResourceId(resourceName: String) = ResourceMappingPatch.resourceMappings.single {
it.type == "id" && it.name == resourceName
}.id
val resourceId = getIdResourceId(resourceName)
return implementation!!.instructions.indexOfFirst {
if (it.opcode != Opcode.CONST) return@indexOfFirst false
val literal = (it as WideLiteralInstruction).wideLiteral
return@indexOfFirst resourceId == literal
}
}