From c61422f65bf1859da9336d764bb328b1882ec287 Mon Sep 17 00:00:00 2001
From: Rose Hogenson <rosehogenson@posteo.net>
Date: Mon, 24 Nov 2025 16:06:33 -0800
Subject: Don't allow decoding bool as int

---
 ccl.go      | 18 ++----------------
 ccl_test.go | 40 ++++++++++++++++++++++++----------------
 2 files changed, 26 insertions(+), 32 deletions(-)

diff --git a/ccl.go b/ccl.go
index 6753dbc..eea772c 100644
--- a/ccl.go
+++ b/ccl.go
@@ -687,24 +687,10 @@ func intLimits(kind reflect.Kind) (min, max uint64, ok bool) {
 
 func (p *parser) unpackBool(fieldVal reflect.Value, b bool, field []byte) error {
 	fieldVal = setPtr(fieldVal)
-	switch fieldVal.Kind() {
-	case reflect.Bool:
-		fieldVal.SetBool(b)
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		if b {
-			fieldVal.SetInt(1)
-		} else {
-			fieldVal.SetInt(0)
-		}
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
-		if b {
-			fieldVal.SetUint(1)
-		} else {
-			fieldVal.SetUint(0)
-		}
-	default:
+	if fieldVal.Kind() != reflect.Bool {
 		return p.error("field %q should have type bool", field)
 	}
+	fieldVal.SetBool(b)
 	return nil
 }
 
diff --git a/ccl_test.go b/ccl_test.go
index 6e3ef3f..15d75af 100644
--- a/ccl_test.go
+++ b/ccl_test.go
@@ -171,22 +171,6 @@ can just span multiple lines"`,
 		desc: "Uint64",
 		msg:  `uint64:1`,
 		want: message{Uint64: 1},
-	}, {
-		desc: "IntTrue",
-		msg:  `int:on`,
-		want: message{Int: 1},
-	}, {
-		desc: "IntFalse",
-		msg:  `int:no`,
-		want: message{Int: 0},
-	}, {
-		desc: "UintTrue",
-		msg:  `uint:on`,
-		want: message{Uint: 1},
-	}, {
-		desc: "UintFalse",
-		msg:  `uint:no`,
-		want: message{Uint: 0},
 	}, {
 		desc: "IntFloat",
 		msg:  `float:-1`,
@@ -605,6 +589,30 @@ func TestUnmarshal_InvalidType(t *testing.T) {
 		desc: "RepeatedSingular",
 		msg:  `F:[1]`,
 		out:  new(struct{ F int }),
+	}, {
+		desc: "IntTrue",
+		msg:  `int:on`,
+		out: new(struct {
+			F int `ccl:"int"`
+		}),
+	}, {
+		desc: "IntFalse",
+		msg:  `int:no`,
+		out: new(struct {
+			F int `ccl:"int"`
+		}),
+	}, {
+		desc: "UintTrue",
+		msg:  `uint:on`,
+		out: new(struct {
+			F uint `ccl:"uint"`
+		}),
+	}, {
+		desc: "UintFalse",
+		msg:  `uint:no`,
+		out: new(struct {
+			F uint `ccl:"uint"`
+		}),
 	}} {
 		t.Run(tc.desc, func(t *testing.T) {
 			t.Parallel()
-- 
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