Function call_cost

pub const fn call_cost(
    spec_id: SpecId,
    transfers_value: bool,
    account_load: AccountLoad,
) -> u64

Calculate call gas cost for the call instruction.

There is three types of gas.

• Account access gas. after berlin it can be cold or warm.
• Transfer value gas. If value is transferred and balance of target account is updated.
• If account is not existing and needs to be created. After Spurious dragon this is only accounted if value is transferred.

account_load.is_empty will be accounted only if hardfork is SPURIOUS_DRAGON and there is transfer value.

This means that bytecode::opcode::EXTSTATICCALL, bytecode::opcode::EXTDELEGATECALL that dont transfer value will not be effected by this field.

bytecode::opcode::CALL, bytecode::opcode::EXTCALL use this field.

While bytecode::opcode::STATICCALL, bytecode::opcode::DELEGATECALL, bytecode::opcode::CALLCODE need to have this field hardcoded to false as they were present before SPURIOUS_DRAGON hardfork.