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Implement print/debug functions via Dynamic parameters.

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This commit is contained in:
Stephen Chung
2021-02-23 19:08:05 +08:00
parent ba2b0630f7
commit 36420f0b99
4 changed files with 173 additions and 142 deletions
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14
src/fn_call.rs
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@@ -186,9 +186,8 @@ impl Engine {
.entry(hash_fn)
.or_insert_with(|| {
let num_args = args.len();
let max_bitmask = 1usize << num_args;
let mut hash = hash_fn;
let mut bitmask = 1usize;
let mut bitmask = 1usize; // Bitmask of which parameter to replace with `Dynamic`
loop {
//lib.get_fn(hash, pub_only).or_else(||
@@ -210,8 +209,8 @@ impl Engine {
// Specific version found
Some(f) => return Some(f),
// No more permutations with `Dynamic` wildcards
_ if bitmask >= max_bitmask => return None,
// No parameters
_ if num_args == 0 => return None,
// Try all permutations with `Dynamic` wildcards
_ => {
@@ -219,12 +218,19 @@ impl Engine {
let arg_types = args.iter().enumerate().map(|(i, a)| {
let mask = 1usize << (num_args - i - 1);
if bitmask & mask != 0 {
// Replace with `Dynamic`
TypeId::of::<Dynamic>()
} else {
a.type_id()
}
});
hash = calc_native_fn_hash(empty(), fn_name, arg_types).unwrap();
// Stop when all permutations are exhausted
if hash == hash_fn {
return None;
}
bitmask += 1;
}
}