From 747c231e8ece86a1c647e3727545552902b03206 Mon Sep 17 00:00:00 2001
From: Gavin Morrow <gavinfmorrow@gmail.com>
Date: Wed, 1 Oct 2025 14:17:54 -0400
Subject: [PATCH] Add `decode_bool()`

---
 src/protobin.gleam         |   9 +++++++++
 test/person.pb             | Bin 56 -> 60 bytes
 test/person.protoscope.txt |   2 ++
 test/protobin_test.gleam   |   8 +++++++-
 4 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/src/protobin.gleam b/src/protobin.gleam
index ec5f506..a2abf1c 100644
--- a/src/protobin.gleam
+++ b/src/protobin.gleam
@@ -329,6 +329,15 @@ pub fn decode_fixed(size: Int) -> Decoder(Int) {
   }
 }
 
+pub fn decode_bool() -> Decoder(Bool) {
+  use bool <- decode.then(decode_uint())
+  case bool {
+    0 -> False |> decode.success
+    1 -> True |> decode.success
+    _ -> decode.failure(False, "Bool")
+  }
+}
+
 pub fn decode_string() -> Decoder(String) {
   use bits <- decode.then(single_or_raw_bit_array())
 
diff --git a/test/person.pb b/test/person.pb
index fe6ae457abafb0647dbc7fb9889d3b084e131058..21814adfe8183c026f5e8cfb383db06c69c5ccff 100644
GIT binary patch
delta 23
ZcmcDpnIO(6J3)+3SB!yy!GaM=0RSzA0_Fe!

delta 19
XcmcDqm>|w5Jwc31SB!yy0Zae@A%_BP

diff --git a/test/person.protoscope.txt b/test/person.protoscope.txt
index 7460cea..445b191 100644
--- a/test/person.protoscope.txt
+++ b/test/person.protoscope.txt
@@ -8,5 +8,7 @@
 	1: 150
 	2: 81050
 	5: 22i32
+	7: true
 }
 5: 22i32
+7: true
diff --git a/test/protobin_test.gleam b/test/protobin_test.gleam
index 4137011..fd220f6 100644
--- a/test/protobin_test.gleam
+++ b/test/protobin_test.gleam
@@ -17,6 +17,7 @@ type Person {
     score: Int,
     self: option.Option(Person),
     day: Int,
+    likes_chocolate: Bool,
   )
 }
 
@@ -27,6 +28,7 @@ const default_person = Person(
   score: 0,
   self: option.None,
   day: 0,
+  likes_chocolate: False,
 )
 
 fn person_decoder() -> Decoder(Person) {
@@ -47,8 +49,10 @@ fn person_decoder() -> Decoder(Person) {
     decode.optional(person_inner_decoder),
   )
   use day <- decode.field(5, protobin.decode_fixed(32))
+  use likes_chocolate <- decode.field(7, protobin.decode_bool())
 
-  Person(id:, name:, age:, score:, self: person, day:) |> decode.success
+  Person(id:, name:, age:, score:, self: person, day:, likes_chocolate:)
+  |> decode.success
 }
 
 pub fn person_pb_test() {
@@ -71,8 +75,10 @@ pub fn person_pb_test() {
         score: 81_050,
         self: option.None,
         day: 22,
+        likes_chocolate: True,
       )),
       day: 22,
+      likes_chocolate: True,
     )
 }
 
-- 
2.51.2