VIP: Add raw_return builtin

[charles-cooper]

Simple Summary

Add a builtin to return Bytes data directly, rather than ABI-encoding the data.

Motivation

When delegatecalling as a proxy, you want to be able to return the bytes directly. More generally, users might want to have low-level access to the bytes returned.

Specification

raw_return(data: Bytes[...]) works similarly to the raw_revert() builtin, except it issues the RETURN opcode instead of REVERT. note that it is not type-safe, from the point of view of the language semantics, it functions like an exceptional terminator, and doesn't have a return type.

Backwards Compatibility

New feature, backwards compatible.

Dependencies

References

Copyright

Copyright and related rights waived via CC0