Event and error selectors are not constants #13137
Description
Description
Function selectors can be used to initialize constants while error and event selectors (recently introduced in #12921) are rejected as non-constant. I think that all of them should work the same way in that regard.
Steps to Reproduce
contract C {
event Ev();
error Er();
function f() external {}
bytes4 constant functionSelector = this.f.selector; // OK
bytes4 constant errorSelector = Er.selector; // Error: Initial value for constant variable has to be compile-time constant.
bytes32 constant eventSelector = Ev.selector; // Error: Initial value for constant variable has to be compile-time constant.
}Error: Initial value for constant variable has to be compile-time constant.
--> test.sol:7:37:
|
7 | bytes4 constant errorSelector = Er.selector; // Error: Initial value for constant variable has to be compile-time constant.
| ^^^^^^^^^^^
Error: Initial value for constant variable has to be compile-time constant.
--> test.sol:8:38:
|
8 | bytes32 constant eventSelector = Ev.selector; // Error: Initial value for constant variable has to be compile-time constant.
| ^^^^^^^^^^^
The test passes without errors if you remove constant from the state variables.
Environment
- Compiler version: 0.8.15 (
develop)
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