From 4a048d34fd9c3323fad1435c3ba04f495cf8d69c Mon Sep 17 00:00:00 2001
From: agra <alex@swipelab.co>
Date: Mon, 25 May 2026 21:16:32 +0300
Subject: [PATCH] ffi M1.0 (2/3, xfail): '=>' body inside '#objc_class' member
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parseForeignClassDecl ([src/parser.zig:1262]) accepts ';'
(declaration) or '{ ... }' (block body) but not '=>' for member
methods. The arrow form, which parseFnDecl ([src/parser.zig:1647])
already handles for top-level/struct decls (M1.0 1/3), surfaces
'expected ;' at the arrow today.

Snapshot pins that error so the next commit (the parser
extension) shows up as a single diagnostic→runtime-output diff
in 140-expression-bodied-objc-method.{txt,exit}.
---
 examples/140-expression-bodied-objc-method.sx | 20 +++++++++++++++++++
 .../140-expression-bodied-objc-method.exit    |  1 +
 .../140-expression-bodied-objc-method.txt     |  1 +
 3 files changed, 22 insertions(+)
 create mode 100644 examples/140-expression-bodied-objc-method.sx
 create mode 100644 tests/expected/140-expression-bodied-objc-method.exit
 create mode 100644 tests/expected/140-expression-bodied-objc-method.txt

diff --git a/examples/140-expression-bodied-objc-method.sx b/examples/140-expression-bodied-objc-method.sx
new file mode 100644
index 0000000..38ee882
--- /dev/null
+++ b/examples/140-expression-bodied-objc-method.sx
@@ -0,0 +1,20 @@
+// M1.0 (xfail) — '=>' expression-body form inside '#objc_class'
+// member methods.
+//
+// Today: parseForeignClassDecl ([src/parser.zig:1262]) accepts ';'
+// (declaration) or '{ ... }' (block body) but not '=>'. Trying
+// '=>' surfaces 'expected ;' at the arrow.
+//
+// Next commit extends the member parser to accept the arrow
+// form, mirroring the existing parseFnDecl ('=>') arm, and this
+// snapshot flips from a parser error to '42\n'.
+
+#import "modules/std.sx";
+
+SxFoo :: #objc_class("SxFoo") {
+    greet :: (self: *Self) -> s32 => 42;
+}
+
+main :: () -> s32 {
+    0;
+}
diff --git a/tests/expected/140-expression-bodied-objc-method.exit b/tests/expected/140-expression-bodied-objc-method.exit
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/tests/expected/140-expression-bodied-objc-method.exit
@@ -0,0 +1 @@
+1
diff --git a/tests/expected/140-expression-bodied-objc-method.txt b/tests/expected/140-expression-bodied-objc-method.txt
new file mode 100644
index 0000000..57d4f6e
--- /dev/null
+++ b/tests/expected/140-expression-bodied-objc-method.txt
@@ -0,0 +1 @@
+/Users/agra/projects/sx/examples/140-expression-bodied-objc-method.sx:15:35: error: expected ';'