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chore: evaluate instruction table initializer at compile time #2762

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Merged
rakita merged 1 commit into from
Jul 23, 2025
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chore: evaluate instruction table initializer at compile time #2762

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8 changes: 7 additions & 1 deletion crates/interpreter/src/instructions.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -35,8 +35,14 @@ pub type Instruction<W, H> = fn(InstructionContext<'_, H, W>);
/// Instruction table is list of instruction function pointers mapped to 256 EVM opcodes.
pub type InstructionTable<W, H> = [Instruction<W, H>; 256];

/// Returns the instruction table for the given spec.
/// Returns the default instruction table for the given interpreter types and host.
#[inline]
pub const fn instruction_table<WIRE: InterpreterTypes, H: Host + ?Sized>(
) -> [Instruction<WIRE, H>; 256] {
const { instruction_table_impl::<WIRE, H>() }
}

const fn instruction_table_impl<WIRE: InterpreterTypes, H: Host + ?Sized>(
) -> [Instruction<WIRE, H>; 256] {
use bytecode::opcode::*;
let mut table = [control::unknown as Instruction<WIRE, H>; 256];
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