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author魏曹先生 <1992414357@qq.com>2026-07-26 20:56:24 +0800
committer魏曹先生 <1992414357@qq.com>2026-07-26 20:56:24 +0800
commit5714eba48ee9031d61858425583c219b881f2d13 (patch)
tree714a2f82d7652ab14433a9ea4c129c30f6d04597 /mingling_macros/src/func/route.rs
parent2cb8893711b73ccde946ca83e01dc315a9294c23 (diff)
feat(macros): split monolith into one-macro-per-file modules
Diffstat (limited to 'mingling_macros/src/func/route.rs')
-rw-r--r--mingling_macros/src/func/route.rs16
1 files changed, 16 insertions, 0 deletions
diff --git a/mingling_macros/src/func/route.rs b/mingling_macros/src/func/route.rs
new file mode 100644
index 0000000..b338fb0
--- /dev/null
+++ b/mingling_macros/src/func/route.rs
@@ -0,0 +1,16 @@
+use proc_macro::TokenStream;
+use quote::quote;
+use syn::parse_macro_input;
+
+/// Routes execution depending on a condition — early-returns the error from a `Result`,
+/// converting the `Ok` branch to the next chain process value.
+pub(crate) fn route(input: TokenStream) -> TokenStream {
+ let expr = parse_macro_input!(input as syn::Expr);
+ let expanded = quote! {
+ match #expr {
+ Ok(r) => r,
+ Err(e) => return ::mingling::Routable::to_chain(e),
+ }
+ };
+ TokenStream::from(expanded)
+}