byteflow-actors 0.5.1

Embeddable flow runtime: M:N scheduler, Atomic Hop (Message+Cap), supervisor — use byteflow::
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54

use std::fmt::Write as _;

use super::chunk::{Chunk, ABI_VERSION};

/// Human-readable listing of a [`Chunk`], used by `byteflow-cli disasm`.
pub fn disassemble(chunk: &Chunk) -> String {
    let mut out = String::new();
    let _ = writeln!(
        out,
        "; chunk {:?} abi={} constants={} functions={} code={}",
        chunk.name,
        ABI_VERSION,
        chunk.constants.len(),
        chunk.functions.len(),
        chunk.code.len()
    );
    for (i, c) in chunk.constants.iter().enumerate() {
        let _ = writeln!(out, ";   const[{i}] = {c}");
    }
    for (i, def) in chunk.functions.iter().enumerate() {
        let _ = writeln!(
            out,
            "; fn[{i}] {} entry={} arity={} regs={}",
            def.name, def.entry, def.arity, def.num_registers
        );
    }
    for (i, instr) in chunk.code.iter().enumerate() {
        let label = chunk
            .functions
            .iter()
            .find(|f| f.entry as usize == i)
            .map(|f| format!("  ; {}", f.name))
            .unwrap_or_default();
        let _ = writeln!(out, "{i:04}  {instr}{label}");
    }
    out
}

#[cfg(test)]
mod tests {
    use crate::bytecode::builder::ChunkBuilder;


    #[test]
    fn lists_main() {
        let mut b = ChunkBuilder::new("d");
        b.begin_function("main", 0, 1);
        b.emit_load_imm(0, 1);
        b.emit_return(0);
        let text = super::disassemble(&b.finish());
        assert!(text.contains("LoadImm r0, 1"));
        assert!(text.contains("main"));
    }
}