def pack_logging_topics(event_id, arg_nodes, arg_types, context):
topics = [event_id]
for node, typ in zip(arg_nodes, arg_types):
value = Expr(node, context).lll_node
if isinstance(typ, ArrayValueAbstractType):
if isinstance(node, (vy_ast.Str, vy_ast.Bytes)):
# for literals, generate the topic at compile time
value = node.value
if isinstance(value, str):
value = value.encode()
topics.append(bytes_to_int(keccak256(value)))
elif value.location == "memory":
topics.append(["sha3", ["add", value, 32], ["mload", value]])
else:
# storage or calldata
placeholder = context.new_internal_variable(value.typ)
placeholder_node = LLLnode.from_list(placeholder, typ=value.typ, location="memory")
copier = make_byte_array_copier(
placeholder_node,
LLLnode.from_list("_sub", typ=value.typ, location=value.location),
)
lll_node = [
"with",
"_sub",
value,
["seq", copier, ["sha3", ["add", placeholder, 32], ["mload", placeholder]]],
]
topics.append(lll_node)
elif isinstance(typ, ArrayDefinition):
size = typ.size_in_bytes
if value.location == "memory":
topics.append(["sha3", value, size])
else:
# storage or calldata
placeholder = context.new_internal_variable(value.typ)
placeholder_node = LLLnode.from_list(placeholder, typ=value.typ, location="memory")
setter = make_setter(placeholder_node, value, "memory", value.pos)
lll_node = ["seq", setter, ["sha3", placeholder, size]]
topics.append(lll_node)
else:
value = unwrap_location(value)
topics.append(value)
return topics
def pack_logging_topics(event_id, args, expected_topics, context, pos):
topics = [event_id]
code_pos = pos
for pos, expected_topic in enumerate(expected_topics):
expected_type = expected_topic.typ
arg = args[pos]
value = Expr(arg, context).lll_node
arg_type = value.typ
if isinstance(arg_type, ByteArrayLike) and isinstance(expected_type, ByteArrayLike):
if arg_type.maxlen > expected_type.maxlen:
raise TypeMismatch(
f"Topic input bytes are too big: {arg_type} {expected_type}", code_pos
)
if isinstance(arg, (vy_ast.Str, vy_ast.Bytes)):
# for literals, generate the topic at compile time
value = arg.value
if isinstance(value, str):
value = value.encode()
topics.append(bytes_to_int(keccak256(value)))
elif value.location == "memory":
topics.append(["sha3", ["add", value, 32], ["mload", value]])
else:
# storage or calldata
placeholder = context.new_internal_variable(value.typ)
placeholder_node = LLLnode.from_list(placeholder, typ=value.typ, location="memory")
copier = make_byte_array_copier(
placeholder_node,
LLLnode.from_list("_sub", typ=value.typ, location=value.location),
)
lll_node = [
"with",
"_sub",
value,
["seq", copier, ["sha3", ["add", placeholder, 32], ["mload", placeholder]]],
]
topics.append(lll_node)
elif isinstance(arg_type, ListType) and isinstance(expected_type, ListType):
size = get_size_of_type(value.typ) * 32
if value.location == "memory":
topics.append(["sha3", value, size])
else:
# storage or calldata
placeholder = context.new_internal_variable(value.typ)
placeholder_node = LLLnode.from_list(placeholder, typ=value.typ, location="memory")
setter = make_setter(placeholder_node, value, "memory", value.pos)
lll_node = ["seq", setter, ["sha3", placeholder, size]]
topics.append(lll_node)
else:
if arg_type != expected_type:
raise TypeMismatch(
f"Invalid type for logging topic, got {arg_type} expected {expected_type}",
value.pos,
)
value = unwrap_location(value)
value = base_type_conversion(value, arg_type, expected_type, pos=code_pos)
topics.append(value)
return topics
