use std::collections::HashMap;
use crate::mir::ValueId;
use crate::mir::instruction::{MirInstruction, ConstValue};

pub(super) fn sanitize_symbol(name: &str) -> String {
    name.chars()
        .map(|c| match c { '.' | '/' | '-' => '_', other => other })
        .collect()
}

pub(super) fn build_const_str_map(f: &crate::mir::function::MirFunction) -> HashMap<ValueId, String> {
    let mut m = HashMap::new();
    for bid in f.block_ids() {
        if let Some(b) = f.blocks.get(&bid) {
            for inst in &b.instructions {
                if let MirInstruction::Const { dst, value: ConstValue::String(s) } = inst {
                    m.insert(*dst, s.clone());
                }
            }
            if let Some(MirInstruction::Const { dst, value: ConstValue::String(s) }) = &b.terminator {
                m.insert(*dst, s.clone());
            }
        }
    }
    m
}