fix folded length in slice; add test

tserg · Nov 20, 2024 · c878485 · c878485
1 parent 3192574
commit c878485
Show file tree

Hide file tree

Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/tests/functional/syntax/test_slice.py b/tests/functional/syntax/test_slice.py
@@ -63,6 +63,11 @@ def foo():
 def foo(a: address):
     x: Bytes[32] = slice(a.code, 0, 31 + 1)
     """,
+    """
+@external
+def foo(inp: Bytes[5], start: uint256) -> Bytes[3]:
+    return slice(inp, 0, 1 + 1)
+    """,
 ]
 
 

diff --git a/vyper/builtins/functions.py b/vyper/builtins/functions.py
@@ -305,7 +305,7 @@ def fetch_call_return(self, node):
 
         arg = node.args[0]
         start_expr = node.args[1]
-        length_expr = node.args[2]
+        length_expr = node.args[2].reduced()
 
         # CMC 2022-03-22 NOTE slight code duplication with semantics/analysis/local
         is_adhoc_slice = arg.get("attr") == "code" or (