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Adds support for the EVM version "Paris".

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Deprecates `block.difficulty` and disallow `difficulty()` in inline assembly for EVM versions >= paris.
The change is due to the renaming introduced by EIP-4399 (see: https://eips.ethereum.org/EIPS/eip-4399).
Introduces `block.prevrandao` in Solidity and `prevrandao()` in inline assembly for EVM versions >= paris.

Co-authored-by: Alex Beregszaszi <alex@rtfs.hu>
Co-authored-by: Daniel <daniel@ekpyron.org>
Co-authored-by: matheusaaguiar <95899911+matheusaaguiar@users.noreply.github.com>
Co-authored-by: Nikola Matić <nikola.matic@ethereum.org>
This commit is contained in:
Rodrigo Q. Saramago
2023-01-23 18:50:36 +00:00
co-authored by Alex Beregszaszi Daniel matheusaaguiar Nikola Matić
parent d70d79af4a
commit ef6ff2f055
114 changed files with 842 additions and 221 deletions
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test/libsolidity/syntaxTests/inlineAssembly/prevrandao_allowed_function_pre_paris.sol
+20
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contract C {
function f() public view returns (uint256 ret) {
assembly {
let prevrandao := sload(0)
ret := prevrandao
}
}
function g() public pure returns (uint256 ret) {
assembly {
function prevrandao() -> r {
r := 1000
}
ret := prevrandao()
}
}
}
// ====
// EVMVersion: <paris
// ----