def test_output_in_builtin_directive():
verify_exception(
"""
%builtins output range_check
""", f"""
file:?:?: ['output', 'range_check'] is not a subsequence of {SUPPORTED_BUILTINS}.
%builtins output range_check
^**************************^
""")
def test_lang_directive():
verify_exception(
"""
%lang abc
""", """
file:?:?: Unsupported %lang directive. Are you using the correct compiler?
%lang abc
^*******^
""")
def test_storage_in_builtin_directive():
verify_exception(
"""
%builtins storage
""", f"""
file:?:?: ['storage'] is not a subsequence of {SUPPORTED_BUILTINS}.
%builtins storage
^***************^
""")
def test_missing_lang_directive():
verify_exception(
"""
@external
func f{}():
return()
end
""", """
file:?:?: External decorators can only be used in source files that contain the \
"%lang starknet" directive.
@external
^*******^
""")
def test_unsupported_args():
verify_exception(
"""
%lang starknet
@external
func fc(arg : felt**):
return ()
end
""", """
file:?:?: Unsupported argument type felt**.
func fc(arg : felt**):
^****^
""")
def test_bad_implicit_arg_name():
verify_exception(
"""
%lang starknet
%builtins pedersen range_check ecdsa
@external
func f{hello}():
return()
end
""", """
file:?:?: Unexpected implicit argument 'hello' in an external function.
func f{hello}():
^***^
""")
def test_builtin_directive_after_external():
verify_exception(
"""
%lang starknet
@external
func f{}():
return()
end
%builtins pedersen range_check ecdsa
""", """
file:?:?: Directives must appear at the top of the file.
%builtins pedersen range_check ecdsa
^**********************************^
""")
def test_invalid_hint():
verify_exception(
"""
%lang starknet
@external
func fc():
%{ __storage.merkle_update() %}
return ()
end
""", """
file:?:?: Hint is not whitelisted.
This may indicate that this library function cannot be used in StarkNet contracts.
%{ __storage.merkle_update() %}
^*****************************^
""")
def test_l1_handler_failures():
verify_exception(
"""
%lang starknet
@l1_handler
func f():
return ()
end
""", """
file:?:?: The first argument of an L1 handler must be named 'from_address'.
func f():
^
""")
verify_exception(
"""
%lang starknet
@l1_handler
func f(abc):
return ()
end
""", """
file:?:?: The first argument of an L1 handler must be named 'from_address'.
func f(abc):
^*^
""")
verify_exception(
"""
%lang starknet
@l1_handler
func f(from_address: felt*):
return ()
end
""", """
file:?:?: The type of 'from_address' must be felt.
func f(from_address: felt*):
^***^
""")
verify_exception(
"""
%lang starknet
@l1_handler
func f(from_address) -> (ret_val):
return (ret_val=0)
end
""", """
file:?:?: An L1 handler can not have a return value.
func f(from_address) -> (ret_val):
^*****^
""")
def test_bad_implicit_arg_type():
verify_exception(
"""
%lang starknet
%builtins pedersen
struct HashBuiltin:
end
@external
func f{pedersen_ptr : HashBuiltin}():
return ()
end
""", """
file:?:?: While expanding the reference 'pedersen_ptr' in:
func f{pedersen_ptr : HashBuiltin}():
^
file:?:?: Expected a 'felt' or a pointer type. Got: 'test_scope.HashBuiltin'.
func f{pedersen_ptr : HashBuiltin}():
^**********^
""")
def test_storage_var_failures():
verify_exception(
"""
@storage_var
func f() -> (res : felt):
end
""", """
file:?:?: @storage_var can only be used in source files that contain the "%lang starknet" directive.
@storage_var
^**********^
""")
verify_exception(
"""
%lang starknet
@storage_var
func f() -> (res : felt):
return () # Comment.
end
""", """
file:?:?: Storage variables must have an empty body.
return () # Comment.
^*******^
""")
verify_exception(
"""
%lang starknet
@storage_var
func f() -> (res : felt):
0 = 1 # Comment.
end
""", """
file:?:?: Storage variables must have an empty body.
func f() -> (res : felt):
^
""")
verify_exception(
"""
%lang starknet
@storage_var
func f{x, y}() -> (res : felt):
end
""", """
file:?:?: Storage variables must have no implicit arguments.
func f{x, y}() -> (res : felt):
^**^
""")
verify_exception(
"""
%lang starknet
@storage_var
@invalid_decorator
func f() -> (res : felt):
end
""", """
file:?:?: Storage variables must have no decorators in addition to @storage_var.
@invalid_decorator
^****************^
""")
verify_exception(
"""
%lang starknet
@storage_var
func f(x, y : felt*) -> (res : felt):
end
""", """
file:?:?: Only felt arguments are supported in storage variables.
func f(x, y : felt*) -> (res : felt):
^***^
""")
verify_exception(
"""
%lang starknet
@storage_var
func f():
end
""", """
file:?:?: Storage variables must return exactly one value.
func f():
^
""")
verify_exception(
"""
%lang starknet
@storage_var
func f() -> (x : felt, y : felt):
end
""", """
file:?:?: Storage variables must return exactly one value.
func f() -> (x : felt, y : felt):
^****************^
""")
verify_exception(
"""
%lang starknet
@storage_var
func f() -> (x : felt*):
end
""", """
file:?:?: The return type of storage variables must consist of felts.
func f() -> (x : felt*):
^*******^
""")
verify_exception(
"""
%lang starknet
# A struct of size 10.
struct A:
member x : (felt, felt, felt, felt, felt, felt, felt, felt, felt, felt)
end
# A struct of size 300.
struct B:
member x : (A, A, A, A, A, A, A, A, A, A)
member y : (A, A, A, A, A, A, A, A, A, A)
member z : (A, A, A, A, A, A, A, A, A, A)
end
@storage_var
func f() -> (x : B):
end
""", """
file:?:?: The storage variable size (300) exceeds the maximum value (256).
func f() -> (x : B):
^***^
""")