chore(release): 4.2.3 [skip ci]

## [4.2.3](https://github.com/revanced/revanced-patcher/compare/v4.2.2...v4.2.3) (2022-09-08)

### Bug Fixes

* wrong value for iterator in PatchOptions ([e31ac1f](e31ac1f132))

CHANGELOG.md

@@ -1,3 +1,17 @@
+## [4.2.3](https://github.com/revanced/revanced-patcher/compare/v4.2.2...v4.2.3) (2022-09-08)
+
+
+### Bug Fixes
+
+* wrong value for iterator in PatchOptions ([e31ac1f](https://github.com/revanced/revanced-patcher/commit/e31ac1f132df56ba7d2f8446d289ae03ef28f67d))
+
+## [4.2.2](https://github.com/revanced/revanced-patcher/compare/v4.2.1...v4.2.2) (2022-09-08)
+
+
+### Bug Fixes
+
+* invalid type propagation in options ([b873228](https://github.com/revanced/revanced-patcher/commit/b873228ef0a9e6e431a4278c979caa5fcc508e0d)), closes [#98](https://github.com/revanced/revanced-patcher/issues/98)
+
 ## [4.2.1](https://github.com/revanced/revanced-patcher/compare/v4.2.0...v4.2.1) (2022-09-08)
 
 

gradle.properties

@@ -1,2 +1,2 @@
 kotlin.code.style = official
-version = 4.2.1
+version = 4.2.3

src/main/kotlin/app/revanced/patcher/patch/PatchOption.kt

@@ -17,7 +17,7 @@ object RequirementNotMetException : Exception("null was passed into an option th
  * A registry for an array of [PatchOption]s.
  * @param options An array of [PatchOption]s.
  */
-class PatchOptions(vararg val options: PatchOption<*>) : Iterable<PatchOption<*>> {
+class PatchOptions(vararg options: PatchOption<*>) : Iterable<PatchOption<*>> {
     private val register = mutableMapOf<String, PatchOption<*>>()
 
     init {
@@ -60,7 +60,7 @@ class PatchOptions(vararg val options: PatchOption<*>) : Iterable<PatchOption<*>
         get(key).value = null
     }
 
-    override fun iterator() = options.iterator()
+    override fun iterator() = register.values.iterator()
 }
 
 /**
@@ -101,11 +101,13 @@ sealed class PatchOption<T>(
      * Gets the value of the option.
      * Please note that using the wrong value type results in a runtime error.
      */
-    inline operator fun <reified V> getValue(thisRef: Any?, property: KProperty<*>) =
-        value as? V ?: throw InvalidTypeException(
+    inline operator fun <reified V> getValue(thisRef: Any?, property: KProperty<*>): V? {
+        if (value !is V?) throw InvalidTypeException(
             V::class.java.canonicalName,
             value?.let { it::class.java.canonicalName } ?: "null"
         )
+        return value as? V?
+    }
 
     /**
      * Gets the value of the option.

src/test/kotlin/app/revanced/patcher/issues/Issue98.kt

@@ -0,0 +1,18 @@
+package app.revanced.patcher.issues
+
+import app.revanced.patcher.patch.PatchOption
+import org.junit.jupiter.api.Test
+import kotlin.test.assertNull
+
+internal class Issue98 {
+    companion object {
+        var key1: String? by PatchOption.StringOption(
+            "key1", null, "title", "description"
+        )
+    }
+
+    @Test
+    fun `should infer nullable type correctly`() {
+        assertNull(key1)
+    }
+}

src/test/kotlin/app/revanced/patcher/patch/PatchOptionsTest.kt

@@ -48,7 +48,7 @@ internal class PatchOptionsTest {
 
     @Test
     fun `should return a different value when changed`() {
-        var value: String by options["key1"]
+        var value: String? by options["key1"]
         val current = value + "" // force a copy
         value = "Hello, world!"
         assertNotEquals(current, value)

src/test/kotlin/app/revanced/patcher/usage/bytecode/ExampleBytecodePatch.kt

@@ -171,32 +171,32 @@ class ExampleBytecodePatch : BytecodePatch(listOf(ExampleFingerprint)) {
     }
 
     companion object : OptionsContainer() {
-        private var key1: String by option(
+        private var key1: String? by option(
             PatchOption.StringOption(
                 "key1", "default", "title", "description", true
             )
         )
-        private var key2: Boolean by option(
+        private var key2: Boolean? by option(
             PatchOption.BooleanOption(
                 "key2", true, "title", "description" // required defaults to false
             )
         )
-        private var key3: String by option(
+        private var key3: String? by option(
             PatchOption.StringListOption(
                 "key3", "TEST", listOf("TEST", "TEST1", "TEST2"), "title", "description"
             )
         )
-        private var key4: Int by option(
+        private var key4: Int? by option(
             PatchOption.IntListOption(
                 "key4", 1, listOf(1, 2, 3), "title", "description"
             )
         )
-        private var key5: Path by option(
+        private var key5: Path? by option(
             PatchOption.PathOption(
                 "key5", File("test.txt").toPath(), "title", "description"
             )
         )
-        private var key6: String by option(
+        private var key6: String? by option(
             PatchOption.StringOption(
                 "key6", null, "title", "description", true
             )