Fix Set decoding and bump version.

valderman · Dec 21, 2021 · ba76e20 · ba76e20
1 parent eb7b836
commit ba76e20
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Showing 3 changed files with 9 additions and 2 deletions.
diff --git a/README.md b/README.md
@@ -32,7 +32,7 @@ repositories {
 }
 
 dependencies {
-    implementation("cc.ekblad:4koma:0.4.0")
+    implementation("cc.ekblad:4koma:0.4.1")
 }
 ```
 

diff --git a/src/main/kotlin/cc/ekblad/toml/transcoding/TomlDecoder.kt b/src/main/kotlin/cc/ekblad/toml/transcoding/TomlDecoder.kt
@@ -412,8 +412,9 @@ private val stringKType: KType = String::class.createType()
 
 private fun <T : Any> TomlDecoder.toList(value: TomlValue.List, target: KType): T =
     when (requireKClass(target.classifier)) {
-        // List also covers the MutableList case
+        // Set/List also covers the MutableSet/MutableList cases
         List::class -> decodeList(value.elements, target.arguments.single().type ?: anyKType) as T
+        Set::class -> decodeList(value.elements, target.arguments.single().type ?: anyKType).toSet() as T
         Collection::class -> decodeList(value.elements, target.arguments.single().type ?: anyKType) as T
         Iterable::class -> decodeList(value.elements, target.arguments.single().type ?: anyKType).asIterable() as T
         Any::class -> decodeList(value.elements, anyKType) as T

diff --git a/src/test/kotlin/cc/ekblad/toml/transcoder/BuiltinDecoderTests.kt b/src/test/kotlin/cc/ekblad/toml/transcoder/BuiltinDecoderTests.kt
@@ -299,6 +299,12 @@ class BuiltinDecoderTests : StringTest {
         }
     }
 
+    @Test
+    fun `can decode to Set`() {
+        assertEquals(emptySet<String>(), TomlValue.List().decode())
+        assertEquals(mutableSetOf<String>(), TomlValue.List().decode())
+    }
+
     @Test
     fun `can decode booleans`() {
         assertEquals(TomlValue.Bool(true).decode(), true)