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| author | Li Xuanji <xuanji@gmail.com> | 2018-01-23 06:34:58 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-01-23 06:34:58 +0800 |
| commit | d555c82db4351f6049defbe64429d5f342f44a5f (patch) | |
| tree | d6034d23aadfc4e17a07fb67044dfe38823f5c9b | |
| parent | e5def2da3d9b6cffbff42e2c9e1941831d2fe5ea (diff) | |
| download | dexon-solidity-d555c82db4351f6049defbe64429d5f342f44a5f.tar.gz dexon-solidity-d555c82db4351f6049defbe64429d5f342f44a5f.tar.zst dexon-solidity-d555c82db4351f6049defbe64429d5f342f44a5f.zip | |
clarify `address` in function selector
I found that the canonical form for `address` in computing the function selector calldata tag is `uint160`. Update the abi specs to explicitly mention this.
| -rw-r--r-- | docs/abi-spec.rst | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/docs/abi-spec.rst b/docs/abi-spec.rst index b81e35a6..90e2825e 100644 --- a/docs/abi-spec.rst +++ b/docs/abi-spec.rst @@ -40,9 +40,9 @@ The following elementary types exist: - ``int<M>``: two's complement signed integer type of ``M`` bits, ``0 < M <= 256``, ``M % 8 == 0``. -- ``address``: equivalent to ``uint160``, except for the assumed interpretation and language typing. +- ``address``: equivalent to ``uint160``, except for the assumed interpretation and language typing. (this is shorthand not to be used for computing the function selector) -- ``uint``, ``int``: synonyms for ``uint256``, ``int256`` respectively (this shorthand not to be used for computing the function selector). +- ``uint``, ``int``: synonyms for ``uint256``, ``int256`` respectively (this is shorthand not to be used for computing the function selector). - ``bool``: equivalent to ``uint8`` restricted to the values 0 and 1 |