feat: export macros (#11)

* feat: export macros * fix: include parameter list in EXTISM_EXPORTED_FUNCTION as they don't take parameters
extism · Nov 29, 2023 · 5acb74f · 5acb74f
1 parent c28e1e1
commit 5acb74f
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/extism-pdk.h b/extism-pdk.h
@@ -7,6 +7,11 @@ typedef uint64_t ExtismPointer;
 #define EXTISM_ENV_MODULE "extism:host/env"
 #define EXTISM_USER_MODULE "extism:host/user"
 
+#define EXTISM_EXPORT_AS(name) __attribute__((export_name(name)))
+#define EXTISM_EXPORTED_FUNCTION(name)                                         \
+  EXTISM_EXPORT_AS(#name)                                                      \
+  name(void)
+
 #define IMPORT(a, b) __attribute__((import_module(a), import_name(b)))
 #define IMPORT_ENV(b)                                                          \
   __attribute__((import_module(EXTISM_ENV_MODULE), import_name(b)))
@@ -19,7 +24,8 @@ IMPORT_ENV("length")
 extern uint64_t extism_length(ExtismPointer);
 IMPORT_ENV("alloc")
 extern ExtismPointer extism_alloc(uint64_t);
-IMPORT_ENV("free") extern void extism_free(ExtismPointer);
+IMPORT_ENV("free")
+extern void extism_free(ExtismPointer);
 
 IMPORT_ENV("input_load_u8")
 extern uint8_t extism_input_load_u8(ExtismPointer);