From 584b0bfdab00d92b3ada405486d1b6278ac8ba66 Mon Sep 17 00:00:00 2001
From: Chielo Newctle <ChieloNewctle@gmail.com>
Date: Fri, 10 Jan 2025 15:14:43 +0800
Subject: [PATCH] fix: exclude `cfg` of `js-sys` from macro expansion

---
 garde/Cargo.toml         |  2 +-
 garde_derive/Cargo.toml  |  1 +
 garde_derive/src/emit.rs | 11 ++++++++---
 3 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/garde/Cargo.toml b/garde/Cargo.toml
index 1b73480..e4d4883 100644
--- a/garde/Cargo.toml
+++ b/garde/Cargo.toml
@@ -34,7 +34,7 @@ email = ["regex"]
 email-idna = ["dep:idna"]
 regex = ["dep:regex", "dep:once_cell", "garde_derive?/regex"]
 pattern = ["regex"]                                           # for backward compatibility with <0.14.0
-js-sys = ["dep:js-sys"]
+js-sys = ["dep:js-sys", "garde_derive?/js-sys"]
 rust_decimal = ["dep:rust_decimal"]
 
 [dependencies]
diff --git a/garde_derive/Cargo.toml b/garde_derive/Cargo.toml
index 1107214..e4ed286 100644
--- a/garde_derive/Cargo.toml
+++ b/garde_derive/Cargo.toml
@@ -15,6 +15,7 @@ proc-macro = true
 
 [features]
 regex = ["dep:regex"]
+js-sys = []
 
 [dependencies]
 syn = { version = "2", features = ["full", "derive"] }
diff --git a/garde_derive/src/emit.rs b/garde_derive/src/emit.rs
index f08fa0b..782df6f 100644
--- a/garde_derive/src/emit.rs
+++ b/garde_derive/src/emit.rs
@@ -304,10 +304,9 @@ impl ToTokens for Rules<'_> {
                 }
                 Pattern(pat) => match pat {
                     model::ValidatePattern::Expr(expr) => quote_spanned!(expr.span() => (&#expr,)),
-                    #[cfg(feature = "regex")]
+                    #[cfg(all(feature = "regex", feature = "js-sys"))]
                     model::ValidatePattern::Lit(s) => quote!({
                         #[cfg(not(all(
-                            feature = "js-sys",
                             target_arch = "wasm32",
                             target_os = "unknown"
                         )))]
@@ -315,7 +314,6 @@ impl ToTokens for Rules<'_> {
                             #rules_mod::pattern::regex::init_pattern!(#s);
 
                         #[cfg(all(
-                            feature = "js-sys",
                             target_arch = "wasm32",
                             target_os = "unknown"
                         ))]
@@ -324,6 +322,13 @@ impl ToTokens for Rules<'_> {
 
                         (&PATTERN,)
                     }),
+                    #[cfg(all(feature = "regex", not(feature = "js-sys")))]
+                    model::ValidatePattern::Lit(s) => quote!({
+                        static PATTERN: #rules_mod::pattern::regex::StaticPattern =
+                            #rules_mod::pattern::regex::init_pattern!(#s);
+
+                        (&PATTERN,)
+                    }),
                 },
             };