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Number.huff
38 lines (30 loc) · 888 Bytes
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Number.huff
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/* Interface */
#define function setNumber(uint256) nonpayable returns ()
#define function getNumber() view returns (uint256)
/* Storage Slots */
#define constant NUMBER_LOCATION = FREE_STORAGE_POINTER()
/* Methods */
#define macro SET_NUMBER() = takes (0) returns (0) {
0x04 calldataload // [number]
[NUMBER_LOCATION] // [ptr, number]
sstore // []
}
#define macro GET_NUMBER() = takes (0) returns (0) {
// Load number from storage.
[NUMBER_LOCATION] // [ptr]
sload // [number]
// Store number in memory.
0x00 mstore
// Return number
0x20 0x00 return
}
#define macro MAIN() = takes (0) returns (0) {
// Identify which function is being called.
0x00 calldataload 0xE0 shr
dup1 0x3fb5c1cb eq set jumpi
dup1 0xf2c9ecd8 eq get jumpi
set:
SET_NUMBER()
get:
GET_NUMBER()
}