Reduce parser stack size on WASI

tiran · tiran · commit 9d6a9e9bce52 · 2022-05-18T15:36:47.000+02:00
diff --git a/Lib/test/test_syntax.py b/Lib/test/test_syntax.py
@@ -2117,7 +2117,6 @@ def test_syntax_error_on_deeply_nested_blocks(self):
         self._check_error(source, "too many statically nested blocks")
 
     @support.cpython_only
-    @unittest.skipIf(support.is_wasi, "Exhausts WASI call stack")
     def test_error_on_parser_stack_overflow(self):
         source = "-" * 100000 + "4"
         for mode in ["exec", "eval", "single"]:
diff --git a/Parser/parser.c b/Parser/parser.c
diff --git a/Tools/peg_generator/pegen/c_generator.py b/Tools/peg_generator/pegen/c_generator.py
@@ -37,7 +37,11 @@
 #  define D(x)
 #endif
 
-# define MAXSTACK 6000
+#ifdef __wasi__
+#  define MAXSTACK 4000
+#else
+#  define MAXSTACK 6000
+#endif
 
 """
 
