dd65cf7e4c
- Unify standard method calls to emit_unified_call; route via RouterPolicy and apply rewrite::{special,known} at a single entry.\n- Stabilize emit-time invariants: LocalSSA finalize + BlockSchedule PHI→Copy→Call ordering; metadata propagation on copies.\n- Known rewrite default ON (userbox only, strict guards) with opt-out flag NYASH_REWRITE_KNOWN_DEFAULT=0.\n- Expand TypeAnnotation whitelist (is_digit_char/is_hex_digit_char/is_alpha_char/Map.has).\n- Docs: unified-method-resolution design note; Quick Reference normalization note; selfhosting/quickstart.\n- Tools: add tools/selfhost_smoke.sh (dev-only).\n- Keep behavior unchanged for Unknown/core/user-instance via BoxCall fallback; all tests green (quick/integration).
49 lines
1.5 KiB
Rust
49 lines
1.5 KiB
Rust
use crate::mir::definitions::call_unified::TypeCertainty;
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use std::sync::OnceLock;
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum Route {
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Unified,
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BoxCall,
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}
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/// Decide routing policy for a method call (Unified vs BoxCall) without changing behavior.
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/// Rules (behavior-preserving):
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/// - UnknownBox → BoxCall (unified is unstable for unknown receivers)
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/// - Core boxes: StringBox/ArrayBox/MapBox → BoxCall (legacy path preferred)
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/// - User boxes: names not ending with "Box" → BoxCall
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/// - Otherwise Unified
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pub fn choose_route(box_name: &str, method: &str, certainty: TypeCertainty, arity: usize) -> Route {
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let mut reason = "unified";
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let route = if box_name == "UnknownBox" {
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reason = "unknown_recv";
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Route::BoxCall
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} else if matches!(box_name, "StringBox" | "ArrayBox" | "MapBox") {
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reason = "core_box";
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Route::BoxCall
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} else if !box_name.ends_with("Box") {
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reason = "user_instance";
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Route::BoxCall
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} else {
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Route::Unified
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};
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if router_trace_enabled() {
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eprintln!(
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"[router] route={:?} reason={} recv={} method={} arity={} certainty={:?}",
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route, reason, box_name, method, arity, certainty
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);
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}
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route
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}
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#[inline]
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fn router_trace_enabled() -> bool {
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static ON: OnceLock<bool> = OnceLock::new();
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*ON.get_or_init(|| match std::env::var("NYASH_ROUTER_TRACE") {
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Ok(val) => matches!(val.as_str(), "1" | "true" | "on" | "yes"),
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Err(_) => false,
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})
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}
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