[PATCH olang v1 3/3] codegen: x64: compile extern function definition

[Johnny Richard <johnny@johnnyrichard.com>]

Signed-off-by: Johnny Richard <johnny@johnnyrichard.com>
---
 src/checker.c                       | 4 +++-
 src/codegen_x86_64.c                | 4 ++++
 tests/olc/0037_variable_overflow.ol | 4 ++--
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/checker.c b/src/checker.c
index 0acab13..02341cc 100644
--- a/src/checker.c
+++ b/src/checker.c
@@ -141,7 +141,9 @@ populate_scope(checker_t *checker, scope_t *scope, ast_node_t *ast)
                 item = list_next(item);
             }
 
-            populate_scope(checker, fn_def->scope, ast->as_fn_def.block);
+            if (ast->as_fn_def.block != NULL) {
+                populate_scope(checker, fn_def->scope, ast->as_fn_def.block);
+            }
             return;
         }
 
diff --git a/src/codegen_x86_64.c b/src/codegen_x86_64.c
index 6758fc1..1951365 100644
--- a/src/codegen_x86_64.c
+++ b/src/codegen_x86_64.c
@@ -887,6 +887,10 @@ static void
 codegen_x86_64_emit_function(codegen_x86_64_t *codegen,
                              ast_fn_definition_t *fn_def)
 {
+    if (fn_def->_extern) {
+        return;
+    }
+
     fprintf(codegen->out, ".globl " SV_FMT "\n", SV_ARG(fn_def->id));
     codegen->base_offset = 0;
 
diff --git a/tests/olc/0037_variable_overflow.ol b/tests/olc/0037_variable_overflow.ol
index 2b7c8c2..be36e77 100644
--- a/tests/olc/0037_variable_overflow.ol
+++ b/tests/olc/0037_variable_overflow.ol
@@ -19,9 +19,9 @@ fn main(): u32 {
   return putchar(111)
 }
 
-# XTEST test_compile(exit_code=0)
+# TEST test_compile(exit_code=0)
 #
-# XTEST test_run_binary(exit_code=0)
+# TEST test_run_binary(exit_code=111)
 #
 # TEST test_ast WITH
 # Translation_Unit
-- 
2.46.0