feat[tool]: add venom callconv info to metadata output

vyper/compiler/output.py

@@ -16,6 +16,7 @@
 from vyper.semantics.types.module import InterfaceT
 from vyper.typing import StorageLayout
 from vyper.utils import safe_relpath
+from vyper.venom.ir_node_to_venom import _pass_via_stack
 from vyper.warnings import ContractSizeLimit, vyper_warn
 
 
@@ -258,6 +259,13 @@ def _to_dict(func_t):
         ret["source_id"] = func_t.decl_node.module_node.source_id
         ret["function_id"] = func_t._function_id
 
+        if func_t.is_internal:
+            pass_via_stack = _pass_via_stack(func_t)
+            pass_via_stack_list = [
+                arg for (arg, is_stack_arg) in pass_via_stack.items() if is_stack_arg
+            ]
+            ret["venom_via_stack"] = pass_via_stack_list
+
         keep_keys = {
             "name",
             "return_type",
@@ -272,6 +280,7 @@ def _to_dict(func_t):
             "module_path",
             "source_id",
             "function_id",
+            "venom_via_stack",
         }
         ret = {k: v for k, v in ret.items() if k in keep_keys}
         return ret

vyper/venom/ir_node_to_venom.py

@@ -177,7 +177,7 @@ def _append_return_args(fn: IRFunction, ofst: int = 0, size: int = 0):
 # func_t: ContractFunctionT
 @functools.lru_cache(maxsize=1024)
 def _pass_via_stack(func_t) -> dict[str, bool]:
-    # returns a dict which returns True if a given argument (referered to
+    # returns a dict which returns True if a given argument (referred to
     # by name) should be passed via the stack
     if not ENABLE_NEW_CALL_CONV:
         return {arg.name: False for arg in func_t.arguments}