fix[codegen]: remove silent fallback for bool kwargs in venom pipeline

tests/functional/builtins/codegen/test_abi_decode.py

@@ -113,6 +113,20 @@ def foo(x: Bytes[{input_len}]) -> {output_typ}:
     assert c.foo(encoded) == expected
 
 
+def test_abi_decode_folded_unwrap_tuple_kwarg(get_contract):
+    contract = """
+UNWRAP: constant(bool) = False
+
+@external
+def foo(x: Bytes[64]) -> Bytes[3]:
+    return abi_decode(x, Bytes[3], unwrap_tuple=UNWRAP)
+    """
+    c = get_contract(contract)
+
+    encoded = abi.encode("bytes", b"vyx")
+    assert c.foo(encoded) == b"vyx"
+
+
 @pytest.mark.parametrize(
     "arg,expected,input_len,output_typ1,output_typ2,abi_typ",
     [

tests/functional/syntax/test_print.py

@@ -1,6 +1,8 @@
 import pytest
 
 from vyper import compiler
+from vyper.compiler.settings import Settings
+from vyper.utils import method_id_int
 
 valid_list = [
     """
@@ -79,3 +81,21 @@ def foo():
 @pytest.mark.parametrize("good_code", valid_list)
 def test_print_syntax(good_code):
     assert compiler.compile_code(good_code) is not None
+
+
+def test_print_folded_hardhat_compat_kwarg():
+    code = """
+HARDHAT_COMPAT: constant(bool) = True
+
+@external
+def foo(x: uint256):
+    print(x, hardhat_compat=HARDHAT_COMPAT)
+    """
+
+    out = compiler.compile_code(
+        code, output_formats=["ir_runtime"], settings=Settings(experimental_codegen=True)
+    )
+    ir_runtime = str(out["ir_runtime"])
+
+    assert f"0x{method_id_int('log(uint256)'):08x}" in ir_runtime
+    assert f"0x{method_id_int('log(string,bytes)'):08x}" not in ir_runtime

tests/unit/compiler/venom/test_builtin_kwargs.py

@@ -0,0 +1,26 @@
+import pytest
+
+from vyper import ast as vy_ast
+from vyper.codegen_venom.builtins.abi import _get_bool_kwarg as get_abi_bool_kwarg
+from vyper.codegen_venom.builtins.misc import _get_bool_kwarg as get_misc_bool_kwarg
+from vyper.exceptions import CompilerPanic
+
+
+def _call_node(source):
+    return vy_ast.parse_to_ast(source).body[0].value
+
+
+@pytest.mark.parametrize("get_bool_kwarg", [get_abi_bool_kwarg, get_misc_bool_kwarg])
+def test_bool_kwarg_uses_reduced_value(get_bool_kwarg):
+    call_node = _call_node("foo(flag=FLAG)")
+    call_node.keywords[0].value._set_folded_value(vy_ast.NameConstant(value=False))
+
+    assert get_bool_kwarg(call_node, "flag", True) is False
+
+
+@pytest.mark.parametrize("get_bool_kwarg", [get_abi_bool_kwarg, get_misc_bool_kwarg])
+def test_bool_kwarg_rejects_unreduced_value(get_bool_kwarg):
+    call_node = _call_node("foo(flag=FLAG)")
+
+    with pytest.raises(CompilerPanic, match="unfoldable boolean kwarg: flag"):
+        get_bool_kwarg(call_node, "flag", True)

vyper/codegen_venom/builtins/abi.py

@@ -15,6 +15,7 @@
 from vyper.codegen_venom.abi import abi_decode_to_buf, abi_encode_to_buf
 from vyper.codegen_venom.buffer import Buffer, Ptr
 from vyper.codegen_venom.value import VyperValue
+from vyper.exceptions import CompilerPanic
 from vyper.semantics.data_locations import DataLocation
 from vyper.semantics.types import BytesT, TupleT
 from vyper.utils import fourbytes_to_int
@@ -37,13 +38,14 @@ def _get_bool_kwarg(node: vy_ast.Call, kwarg_name: str, default: bool) -> bool:
     kw_node = _get_kwarg_value(node, kwarg_name)
     if kw_node is None:
         return default
+    kw_node = kw_node.reduced()
     # The value should be a NameConstant (True/False)
     if isinstance(kw_node, vy_ast.NameConstant):
         return kw_node.value
     # Could also be an Int with constant value
     if isinstance(kw_node, vy_ast.Int):
         return bool(kw_node.value)
-    return default
+    raise CompilerPanic(f"unfoldable boolean kwarg: {kwarg_name}")
 
 
 def _parse_method_id(method_id_node: vy_ast.VyperNode) -> Optional[int]:

vyper/codegen_venom/builtins/misc.py

@@ -19,7 +19,7 @@
 from vyper.codegen_venom.abi.abi_encoder import abi_encode_to_buf
 from vyper.codegen_venom.constants import BLOCKHASH_LOOKBACK_LIMIT, ECRECOVER_PRECOMPILE
 from vyper.evm.opcodes import version_check
-from vyper.exceptions import EvmVersionException
+from vyper.exceptions import CompilerPanic, EvmVersionException
 from vyper.semantics.types import BytesT, DecimalT, StringT, TupleT
 from vyper.utils import DECIMAL_DIVISOR, method_id_int
 from vyper.venom.basicblock import IRLiteral, IROperand, IRVariable
@@ -389,11 +389,12 @@ def _get_bool_kwarg(node: vy_ast.Call, kwarg_name: str, default: bool) -> bool:
     kw_node = _get_kwarg_value(node, kwarg_name)
     if kw_node is None:
         return default
+    kw_node = kw_node.reduced()
     if isinstance(kw_node, vy_ast.NameConstant):
         return kw_node.value
     if isinstance(kw_node, vy_ast.Int):
         return bool(kw_node.value)
-    return default
+    raise CompilerPanic(f"unfoldable boolean kwarg: {kwarg_name}")
 
 
 def _create_tuple_in_memory(