Start passing around a jump buffer to handle errors

[fur] / templates / function_definition.c

diff --git a/templates/function_definition.c b/templates/function_definition.c
index 24c73f8..fb7a090 100644 (file)
--- a/templates/function_definition.c
+++ b/templates/function_definition.c
@@ -1,8 +1,17 @@
 
-Object user${{name}}$implementation(EnvironmentPool* environmentPool, Environment* parent, size_t argc, Stack* stack)
+Object user${{name}}$implementation(EnvironmentPool* environmentPool, Environment* parent, size_t argc, Stack* stack, jmp_buf parent_jump)
 {
   Environment* environment = EnvironmentPool_allocate(environmentPool);
   Environment_initialize(environment, parent);
+
+  jmp_buf jump;
+  if(setjmp(jump) != 0)
+  {
+    Environment_setLive(environment, false);
+    fprintf(stderr, "Error in {{name}}\n");
+    longjmp(parent_jump, 1);
+  }
+
   Object result = builtin$nil;
 
   {% for argument_name in argument_name_list|reverse %}