From 8689209e0338943dba9b7ff5566b8a420374764c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Batuhan=20Ta=C5=9Fkaya?=
 <47358913+isidentical@users.noreply.github.com>
Date: Sun, 15 Mar 2020 22:32:17 +0300
Subject: bpo-39969: Remove ast.Param node class as is no longer used
 (GH-19020)

---
 Python/compile.c | 37 +++++++++++++++++++------------------
 1 file changed, 19 insertions(+), 18 deletions(-)

(limited to 'Python/compile.c')

diff --git a/Python/compile.c b/Python/compile.c
index b92cb445af..dd14023fcc 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -3579,10 +3579,10 @@ compiler_nameop(struct compiler *c, identifier name, expr_context_ty ctx)
         case AugStore:
             break;
         case Del: op = DELETE_DEREF; break;
-        case Param:
         default:
-            PyErr_SetString(PyExc_SystemError,
-                            "param invalid for deref variable");
+            PyErr_Format(PyExc_SystemError,
+                         "expr_context kind %d should not be possible",
+                         ctx);
             return 0;
         }
         break;
@@ -3596,10 +3596,10 @@ compiler_nameop(struct compiler *c, identifier name, expr_context_ty ctx)
         case AugLoad:
         case AugStore:
             break;
-        case Param:
         default:
-            PyErr_SetString(PyExc_SystemError,
-                            "param invalid for local variable");
+            PyErr_Format(PyExc_SystemError,
+                         "expr_context kind %d should not be possible",
+                         ctx);
             return 0;
         }
         ADDOP_N(c, op, mangled, varnames);
@@ -3614,10 +3614,10 @@ compiler_nameop(struct compiler *c, identifier name, expr_context_ty ctx)
         case AugLoad:
         case AugStore:
             break;
-        case Param:
         default:
-            PyErr_SetString(PyExc_SystemError,
-                            "param invalid for global variable");
+            PyErr_Format(PyExc_SystemError,
+                         "expr_context kind %d should not be possible",
+                         ctx);
             return 0;
         }
         break;
@@ -3631,10 +3631,10 @@ compiler_nameop(struct compiler *c, identifier name, expr_context_ty ctx)
         case AugLoad:
         case AugStore:
             break;
-        case Param:
         default:
-            PyErr_SetString(PyExc_SystemError,
-                            "param invalid for name variable");
+            PyErr_Format(PyExc_SystemError,
+                         "expr_context kind %d should not be possible",
+                         ctx);
             return 0;
         }
         break;
@@ -5058,10 +5058,10 @@ compiler_visit_expr1(struct compiler *c, expr_ty e)
         case Del:
             ADDOP_NAME(c, DELETE_ATTR, e->v.Attribute.attr, names);
             break;
-        case Param:
         default:
-            PyErr_SetString(PyExc_SystemError,
-                            "param invalid in attribute expression");
+            PyErr_Format(PyExc_SystemError,
+                         "expr_context kind %d should not be possible",
+                         e->v.Attribute.ctx);
             return 0;
         }
         break;
@@ -5359,9 +5359,10 @@ compiler_subscript(struct compiler *c, expr_ty e)
         case AugStore:/* fall through to Store */
         case Store:   op = STORE_SUBSCR; break;
         case Del:     op = DELETE_SUBSCR; break;
-        case Param:
-            PyErr_SetString(PyExc_SystemError,
-                "param invalid in subscript expression");
+        default:
+            PyErr_Format(PyExc_SystemError,
+                         "expr_context kind %d should not be possible",
+                         ctx);
             return 0;
     }
     if (ctx == AugStore) {
-- 
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