Setup structure for program execute

1 files changed, 5 insertions, 2 deletions

diff --git a/include/ast.h b/include/ast.h
index 2925f6c..f056db7 100644
--- a/include/ast.h
+++ b/include/ast.h
@@ -142,9 +142,12 @@ typedef struct {
 } VariableType;
 
 /*
-    Note: When resolving AST, more than one thread can end up resolving the same expressions at the same time.
+    Note: When resolving AST, multiple threads can end up resolving the same expressions at the same time.
     This is intentional. Instead of using mutex for every expression and locking/unlocking everytime
     which uses more memory and affects performance, we assume such race conditions are rare and let them happen.
+    TODO: Investigate possible deadlock when multiple threads resolve the same expression and that
+    expression has a recursive dependency and the threads execute @ast_resolve at the same speed,
+    leading to @ast_resolve running again for the same expression.
 */
 struct LhsExpr {
     bool is_extern;
@@ -210,7 +213,7 @@ typedef struct {
     Parser *parser; /* Borrowed. This is the parser that belongs to the thread */
     /*
         Borrowed. This is the current scope. Note that this scope can belong to another parser (and thread),
-        as such, @parser and scope_get_parser(@scope) parser may not be the same
+        as such, @parser and scope_get_parser(@scope) parser may not be the same.
     */
     Scope *scope;
 } AstCompilerContext;