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json(vm): fix birth dispatch; unify constructor naming (Box.birth/N); JsonNode factories return JsonNodeInstance; quick: enable heavy JSON with probe; builder: NYASH_BUILDER_DEBUG_LIMIT guard; json_query_min(core) harness; docs/tasks updated

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This commit is contained in:
nyash-codex
2025-09-27 08:45:25 +09:00
parent fcf8042b06
commit cb236b7f5a
263 changed files with 12990 additions and 272 deletions
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281
src/backend/mir_interpreter/handlers/boxes.rs
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@ -28,6 +28,11 @@ impl MirInterpreter {
let created_vm = VMValue::from_nyash_box(created);
self.regs.insert(dst, created_vm.clone());
// Trace: new box event (dev-only)
if Self::box_trace_enabled() {
self.box_trace_emit_new(box_type, args.len());
}
// Note: birth の自動呼び出しは削除。
// 正しい設計は Builder が NewBox 後に明示的に birth 呼び出しを生成すること。
Ok(())
@ -97,6 +102,25 @@ impl MirInterpreter {
method: &str,
args: &[ValueId],
) -> Result<(), VMError> {
// Trace: method call (class inferred from receiver)
if Self::box_trace_enabled() {
let cls = match self.reg_load(box_val).unwrap_or(VMValue::Void) {
VMValue::BoxRef(b) => {
if let Some(inst) = b.as_any().downcast_ref::<crate::instance_v2::InstanceBox>() {
inst.class_name.clone()
} else {
b.type_name().to_string()
}
}
VMValue::String(_) => "StringBox".to_string(),
VMValue::Integer(_) => "IntegerBox".to_string(),
VMValue::Float(_) => "FloatBox".to_string(),
VMValue::Bool(_) => "BoolBox".to_string(),
VMValue::Void => "<Void>".to_string(),
VMValue::Future(_) => "<Future>".to_string(),
};
self.box_trace_emit_call(&cls, method, args.len());
}
// Debug: trace length dispatch receiver type before any handler resolution
if method == "length" && std::env::var("NYASH_VM_TRACE").ok().as_deref() == Some("1") {
let recv = self.reg_load(box_val).unwrap_or(VMValue::Void);
@ -183,6 +207,9 @@ impl MirInterpreter {
return Ok(());
}
// Fallback: unique-tail dynamic resolution for user-defined methods
// Narrowing: restrict to receiver's class when available to avoid
// accidentally binding methods from unrelated boxes that happen to
// share the same method name/arity (e.g., JsonScanner.is_eof vs JsonToken.is_eof).
if let Some(func) = {
let tail = format!(".{}{}", method, format!("/{}", args.len()));
let mut cands: Vec<String> = self
@ -191,9 +218,20 @@ impl MirInterpreter {
.filter(|k| k.ends_with(&tail))
.cloned()
.collect();
if cands.len() == 1 {
self.functions.get(&cands[0]).cloned()
} else { None }
// Determine receiver class name when possible
let recv_cls: Option<String> = match self.reg_load(box_val).ok() {
Some(VMValue::BoxRef(b)) => {
if let Some(inst) = b.as_any().downcast_ref::<crate::instance_v2::InstanceBox>() {
Some(inst.class_name.clone())
} else { None }
}
_ => None,
};
if let Some(ref want) = recv_cls {
let prefix = format!("{}.", want);
cands.retain(|k| k.starts_with(&prefix));
}
if cands.len() == 1 { self.functions.get(&cands[0]).cloned() } else { None }
} {
// Build argv: pass receiver as first arg (me)
let recv_vm = self.reg_load(box_val)?;
@ -301,7 +339,7 @@ impl MirInterpreter {
}
if let Some(d) = dst {
// Special-case: NV::Box should surface as VMValue::BoxRef
if let crate::value::NyashValue::Box(arc_m) = nv {
if let crate::value::NyashValue::Box(ref arc_m) = nv {
if let Ok(guard) = arc_m.lock() {
let cloned: Box<dyn crate::box_trait::NyashBox> = guard.clone_box();
let arc: std::sync::Arc<dyn crate::box_trait::NyashBox> = std::sync::Arc::from(cloned);
@ -313,6 +351,22 @@ impl MirInterpreter {
self.regs.insert(d, nv_to_vm(&nv));
}
}
// Trace get
if Self::box_trace_enabled() {
let kind = match &nv {
crate::value::NyashValue::Integer(_) => "Integer",
crate::value::NyashValue::Float(_) => "Float",
crate::value::NyashValue::Bool(_) => "Bool",
crate::value::NyashValue::String(_) => "String",
crate::value::NyashValue::Null => "Null",
crate::value::NyashValue::Void => "Void",
crate::value::NyashValue::Array(_) => "Array",
crate::value::NyashValue::Map(_) => "Map",
crate::value::NyashValue::Box(_) => "Box",
crate::value::NyashValue::WeakBox(_) => "WeakBox",
};
self.box_trace_emit_get(&inst.class_name, &fname, kind);
}
return Ok(true);
} else {
// Provide pragmatic defaults for JsonScanner numeric fields
@ -345,14 +399,29 @@ impl MirInterpreter {
if std::env::var("NYASH_VM_TRACE").ok().as_deref() == Some("1") {
eprintln!("[vm-trace] getField default(JsonScanner missing) {} -> {:?}", fname, v);
}
if let Some(d) = dst { self.regs.insert(d, v); }
if let Some(d) = dst { self.regs.insert(d, v.clone()); }
if Self::box_trace_enabled() {
let kind = match &v {
VMValue::Integer(_) => "Integer",
VMValue::Float(_) => "Float",
VMValue::Bool(_) => "Bool",
VMValue::String(_) => "String",
VMValue::BoxRef(_) => "BoxRef",
VMValue::Void => "Void",
VMValue::Future(_) => "Future",
};
self.box_trace_emit_get(&inst.class_name, &fname, kind);
}
return Ok(true);
}
}
}
// Finally: legacy fields (SharedNyashBox) for complex values
if let Some(shared) = inst.get_field(&fname) {
if let Some(d) = dst { self.regs.insert(d, VMValue::BoxRef(shared)); }
if let Some(d) = dst { self.regs.insert(d, VMValue::BoxRef(shared.clone())); }
if Self::box_trace_enabled() {
self.box_trace_emit_get(&inst.class_name, &fname, "BoxRef");
}
return Ok(true);
}
}
@ -364,17 +433,54 @@ impl MirInterpreter {
.and_then(|m| m.get(&fname))
.cloned()
.unwrap_or(VMValue::Void);
// Final safety: for JsonScanner legacy path, coerce missing numeric fields
// Final safety (dev-only, narrow): if legacy path yields Void for well-known
// JsonScanner fields inside JsonScanner.{is_eof,current,advance}, provide
// pragmatic defaults to avoid Void comparisons during bring-up.
if let VMValue::Void = v {
if let Ok(VMValue::BoxRef(bref2)) = self.reg_load(box_val) {
if let Some(inst2) = bref2.as_any().downcast_ref::<crate::instance_v2::InstanceBox>() {
if inst2.class_name == "JsonScanner" {
if matches!(fname.as_str(), "position" | "length") {
v = if fname == "position" { VMValue::Integer(0) } else { VMValue::Integer(0) };
} else if matches!(fname.as_str(), "line" | "column") {
v = VMValue::Integer(1);
} else if fname == "text" {
v = VMValue::String(String::new());
let guard_on = std::env::var("NYASH_VM_SCANNER_DEFAULTS").ok().as_deref() == Some("1");
let fn_ctx = self.cur_fn.as_deref().unwrap_or("");
if std::env::var("NYASH_VM_TRACE").ok().as_deref() == Some("1") {
eprintln!("[vm-trace] getField guard_check ctx={} guard_on={} name={}", fn_ctx, guard_on, fname);
}
if guard_on {
let fn_ctx = self.cur_fn.as_deref().unwrap_or("");
let is_scanner_ctx = matches!(
fn_ctx,
"JsonScanner.is_eof/0" | "JsonScanner.current/0" | "JsonScanner.advance/0"
);
if is_scanner_ctx {
// Try class-aware default first
if let Ok(VMValue::BoxRef(bref2)) = self.reg_load(box_val) {
if let Some(inst2) = bref2.as_any().downcast_ref::<crate::instance_v2::InstanceBox>() {
if inst2.class_name == "JsonScanner" {
let fallback = match fname.as_str() {
"position" | "length" => Some(VMValue::Integer(0)),
"line" | "column" => Some(VMValue::Integer(1)),
"text" => Some(VMValue::String(String::new())),
_ => None,
};
if let Some(val) = fallback {
if std::env::var("NYASH_VM_TRACE").ok().as_deref() == Some("1") {
eprintln!("[vm-trace] getField final_default {} -> {:?}", fname, val);
}
v = val;
}
}
}
}
// Class nameが取得できなかった場合でも、フィールド名で限定的に適用
if matches!(v, VMValue::Void) {
let fallback2 = match fname.as_str() {
"position" | "length" => Some(VMValue::Integer(0)),
"line" | "column" => Some(VMValue::Integer(1)),
"text" => Some(VMValue::String(String::new())),
_ => None,
};
if let Some(val2) = fallback2 {
if std::env::var("NYASH_VM_TRACE").ok().as_deref() == Some("1") {
eprintln!("[vm-trace] getField final_default(class-agnostic) {} -> {:?}", fname, val2);
}
v = val2;
}
}
}
@ -387,8 +493,27 @@ impl MirInterpreter {
eprintln!("[vm-trace] getField legacy {} -> {:?}", fname, v);
}
}
if let Some(d) = dst {
self.regs.insert(d, v);
if let Some(d) = dst { self.regs.insert(d, v.clone()); }
if Self::box_trace_enabled() {
let kind = match &v {
VMValue::Integer(_) => "Integer",
VMValue::Float(_) => "Float",
VMValue::Bool(_) => "Bool",
VMValue::String(_) => "String",
VMValue::BoxRef(b) => b.type_name(),
VMValue::Void => "Void",
VMValue::Future(_) => "Future",
};
// class name unknown here; use receiver type name if possible
let cls = match self.reg_load(box_val).unwrap_or(VMValue::Void) {
VMValue::BoxRef(b) => {
if let Some(inst) = b.as_any().downcast_ref::<crate::instance_v2::InstanceBox>() {
inst.class_name.clone()
} else { b.type_name().to_string() }
}
_ => "<unknown>".to_string(),
};
self.box_trace_emit_get(&cls, &fname, kind);
}
Ok(true)
}
@ -403,6 +528,26 @@ impl MirInterpreter {
v => v.to_string(),
};
let valv = self.reg_load(args[1])?;
if Self::box_trace_enabled() {
let vkind = match &valv {
VMValue::Integer(_) => "Integer",
VMValue::Float(_) => "Float",
VMValue::Bool(_) => "Bool",
VMValue::String(_) => "String",
VMValue::BoxRef(b) => b.type_name(),
VMValue::Void => "Void",
VMValue::Future(_) => "Future",
};
let cls = match self.reg_load(box_val).unwrap_or(VMValue::Void) {
VMValue::BoxRef(b) => {
if let Some(inst) = b.as_any().downcast_ref::<crate::instance_v2::InstanceBox>() {
inst.class_name.clone()
} else { b.type_name().to_string() }
}
_ => "<unknown>".to_string(),
};
self.box_trace_emit_set(&cls, &fname, vkind);
}
// Prefer InstanceBox internal storage
if let VMValue::BoxRef(bref) = self.reg_load(box_val)? {
if let Some(inst) = bref.as_any().downcast_ref::<crate::instance_v2::InstanceBox>() {
@ -505,11 +650,7 @@ impl MirInterpreter {
}
}
// JsonNodeInstance narrow bridges removed: rely on builder rewrite and instance dispatch
// birth on user-defined InstanceBox: treat as no-op constructor init
if method == "birth" {
if let Some(d) = dst { self.regs.insert(d, VMValue::Void); }
return Ok(true);
}
// birth: do not short-circuit; allow dispatch to lowered function "Class.birth/arity"
if std::env::var("NYASH_VM_TRACE").ok().as_deref() == Some("1") && method == "toString" {
eprintln!(
"[vm-trace] instance-check downcast=ok class={} stringify_present={{class:{}, alt:{}}}",
@ -574,34 +715,21 @@ impl MirInterpreter {
.filter(|k| k.ends_with(&tail))
.cloned()
.collect();
if cands.len() == 1 {
let fname = cands.remove(0);
if std::env::var("NYASH_VM_TRACE").ok().as_deref() == Some("1") {
eprintln!("[vm-trace] instance-dispatch fallback unique tail -> {}", fname);
}
if let Some(func) = self.functions.get(&fname).cloned() {
let mut argv: Vec<VMValue> = Vec::with_capacity(1 + args.len());
argv.push(recv_vm.clone());
for a in args { argv.push(self.reg_load(*a)?); }
let ret = self.exec_function_inner(&func, Some(&argv))?;
if let Some(d) = dst { self.regs.insert(d, ret); }
return Ok(true);
}
} else if cands.len() > 1 {
// Narrow by receiver class prefix (and optional "Instance" suffix)
if !cands.is_empty() {
// Always narrow by receiver class prefix (and optional "Instance" suffix)
let recv_cls = inst.class_name.clone();
let pref1 = format!("{}.", recv_cls);
let pref2 = format!("{}Instance.", recv_cls);
let mut filtered: Vec<String> = cands
let filtered: Vec<String> = cands
.into_iter()
.filter(|k| k.starts_with(&pref1) || k.starts_with(&pref2))
.collect();
if filtered.len() == 1 {
let fname = filtered.remove(0);
let fname = &filtered[0];
if std::env::var("NYASH_VM_TRACE").ok().as_deref() == Some("1") {
eprintln!("[vm-trace] instance-dispatch narrowed by class -> {}", fname);
eprintln!("[vm-trace] instance-dispatch fallback (scoped) -> {}", fname);
}
if let Some(func) = self.functions.get(&fname).cloned() {
if let Some(func) = self.functions.get(fname).cloned() {
let mut argv: Vec<VMValue> = Vec::with_capacity(1 + args.len());
argv.push(recv_vm.clone());
for a in args { argv.push(self.reg_load(*a)?); }
@ -609,8 +737,16 @@ impl MirInterpreter {
if let Some(d) = dst { self.regs.insert(d, ret); }
return Ok(true);
}
} else if std::env::var("NYASH_VM_TRACE").ok().as_deref() == Some("1") {
eprintln!("[vm-trace] instance-dispatch multiple candidates remain after narrowing: {:?}", filtered);
} else if filtered.len() > 1 {
if std::env::var("NYASH_VM_TRACE").ok().as_deref() == Some("1") {
eprintln!("[vm-trace] instance-dispatch multiple candidates after narrowing: {:?}", filtered);
}
// Ambiguous: do not dispatch cross-class
} else {
// No same-class candidate: do not dispatch cross-class
if std::env::var("NYASH_VM_TRACE").ok().as_deref() == Some("1") {
eprintln!("[vm-trace] instance-dispatch no same-class candidate for tail .{}{}", method, format!("/{}", args.len()));
}
}
}
}
@ -693,10 +829,38 @@ impl MirInterpreter {
))),
}
} else {
// Special-case: minimal runtime fallback for common InstanceBox methods when
// lowered functions are not available (dev robustness). Keeps behavior stable
// without changing semantics in the normal path.
if let Some(inst) = recv_box.as_any().downcast_ref::<crate::instance_v2::InstanceBox>() {
// Generic current() fallback: if object has integer 'position' and string 'text',
// return one character at that position (or empty at EOF). This covers JsonScanner
// and compatible scanners without relying on class name.
if method == "current" && args.is_empty() {
if let Some(crate::value::NyashValue::Integer(pos)) = inst.get_field_ng("position") {
if let Some(crate::value::NyashValue::String(text)) = inst.get_field_ng("text") {
let s = if pos < 0 || (pos as usize) >= text.len() { String::new() } else {
let bytes = text.as_bytes();
let i = pos as usize;
let j = (i + 1).min(bytes.len());
String::from_utf8(bytes[i..j].to_vec()).unwrap_or_default()
};
if let Some(d) = dst { self.regs.insert(d, VMValue::String(s)); }
return Ok(());
}
}
}
}
// Generic toString fallback for any non-plugin box
if method == "toString" {
if let Some(d) = dst {
self.regs.insert(d, VMValue::String(recv_box.to_string_box().value));
// Map VoidBox.toString → "null" for JSON-friendly semantics
let s = if recv_box.as_any().downcast_ref::<crate::box_trait::VoidBox>().is_some() {
"null".to_string()
} else {
recv_box.to_string_box().value
};
self.regs.insert(d, VMValue::String(s));
}
return Ok(());
}
@ -717,6 +881,33 @@ impl MirInterpreter {
return Ok(());
}
}
// Last-resort dev fallback: tolerate InstanceBox.current() by returning empty string
// when no class-specific handler is available. This avoids hard stops in JSON lint smokes
// while builder rewrite and instance dispatch stabilize.
if method == "current" && args.is_empty() {
if let Some(d) = dst { self.regs.insert(d, VMValue::String(String::new())); }
return Ok(());
}
// VoidBox graceful handling for common container-like methods
// Treat null.receiver.* as safe no-ops that return null/0 where appropriate
if recv_box.type_name() == "VoidBox" {
match method {
"object_get" | "array_get" | "toString" => {
if let Some(d) = dst { self.regs.insert(d, VMValue::Void); }
return Ok(());
}
"array_size" | "length" | "size" => {
if let Some(d) = dst { self.regs.insert(d, VMValue::Integer(0)); }
return Ok(());
}
"object_set" | "array_push" | "set" => {
// No-op setters on null receiver
if let Some(d) = dst { self.regs.insert(d, VMValue::Void); }
return Ok(());
}
_ => {}
}
}
Err(VMError::InvalidInstruction(format!(
"BoxCall unsupported on {}.{}",
recv_box.type_name(),