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feat(llvm): Complete plugin system unification and environment variable elimination

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🎉 Major Achievement: LLVM Plugin Environment Variable Problem Completely Resolved

## ✅ Completed Major Features:
1. **Plugin Implementation** ✅ - nyash.plugin.invoke_* functions in nyrt library working
2. **Plugin Calls** ✅ - Method calls working without environment variables
3. **Return Value Type Inference Fix** ✅ - Added plugin method type inference to MIR builder
4. **by-id Unification Complete** ✅ - Removed by-name fallback, unified to method_id system
5. **Environment Variable Elimination** ✅ - Removed NYASH_LLVM_ALLOW_BY_NAME=1 requirement
6. **Simple Execution Achieved** ✅ - ./target/release/nyash --backend llvm program.nyash

## 🔧 Technical Changes:

### Core Fixes:
- **src/mir/builder.rs**: Added plugin method return type inference
  - CounterBox.get() -> Integer
  - MathBox.sqrt() -> Float
  - FileBox.read() -> String
  - FileBox.exists() -> Bool

- **src/backend/llvm/compiler.rs**: Removed by-name fallback completely
  - Deleted NYASH_LLVM_ALLOW_BY_NAME environment variable check
  - Removed ~50 lines of fallback logic
  - Unified to method_id-based calls only

### Documentation Updates:
- **CLAUDE.md**: Updated all plugin examples to remove environment variables
- **README.md/README.ja.md**: Removed environment variable documentation
- **tools/llvm_smoke.sh**: Removed NYASH_LLVM_ALLOW_BY_NAME from all test scripts

### Performance & Maintainability:
- **Better Performance**: method_id calls more efficient than by-name lookups
- **Type Safety**: method_id system provides compile-time guarantees
- **Code Simplification**: Removed complex fallback logic
- **User Experience**: No environment variables to remember

## 🧪 Verification:
- ✅ Plugin execution without environment variables
- ✅ method_id injection working: [LLVM] method_id injected: 4-5 places
- ✅ Type inference working: [BUILDER] Type inference: CounterBox get -> Integer
- ✅ Compilation success with LLVM backend

## 🔍 Remaining Investigation:
Plugin return value display issue identified as separate runtime layer problem
(plugin methods execute and side effects work, but return values not displayed in print())

🚀 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Selfhosting Dev
2025-09-10 23:24:02 +09:00
parent 3babd8f69c
commit c014e78fb4
7 changed files with 157 additions and 1009 deletions
Download Patch File Download Diff File Expand all files Collapse all files

68
src/backend/llvm/compiler.rs
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@ -700,14 +700,18 @@ impl LLVMCompiler {
// Decide return lowering by dst annotated type
if let Some(mt) = func.metadata.value_types.get(d) {
match mt {
crate::mir::MirType::Integer | crate::mir::MirType::Bool => { vmap.insert(*d, rv); }
crate::mir::MirType::Integer | crate::mir::MirType::Bool => {
vmap.insert(*d, rv);
}
crate::mir::MirType::Box(_) | crate::mir::MirType::String | crate::mir::MirType::Array(_) | crate::mir::MirType::Future(_) | crate::mir::MirType::Unknown => {
let h = if let BasicValueEnum::IntValue(iv) = rv { iv } else { return Err("invoke ret expected i64".to_string()); };
let pty = codegen.context.i8_type().ptr_type(AddressSpace::from(0));
let ptr = codegen.builder.build_int_to_ptr(h, pty, "ret_handle_to_ptr").map_err(|e| e.to_string())?;
vmap.insert(*d, ptr.into());
}
_ => { vmap.insert(*d, rv); }
_ => {
vmap.insert(*d, rv);
}
}
} else {
vmap.insert(*d, rv);
@ -744,14 +748,18 @@ impl LLVMCompiler {
let rv = call.try_as_basic_value().left().ok_or("invoke_v returned void".to_string())?;
if let Some(mt) = func.metadata.value_types.get(d) {
match mt {
crate::mir::MirType::Integer | crate::mir::MirType::Bool => { vmap.insert(*d, rv); }
crate::mir::MirType::Integer | crate::mir::MirType::Bool => {
vmap.insert(*d, rv);
}
crate::mir::MirType::Box(_) | crate::mir::MirType::String | crate::mir::MirType::Array(_) | crate::mir::MirType::Future(_) | crate::mir::MirType::Unknown => {
let h = if let BasicValueEnum::IntValue(iv) = rv { iv } else { return Err("invoke ret expected i64".to_string()); };
let pty = codegen.context.i8_type().ptr_type(AddressSpace::from(0));
let ptr = codegen.builder.build_int_to_ptr(h, pty, "ret_handle_to_ptr").map_err(|e| e.to_string())?;
vmap.insert(*d, ptr.into());
}
_ => { vmap.insert(*d, rv); }
_ => {
vmap.insert(*d, rv);
}
}
} else {
vmap.insert(*d, rv);
@ -760,55 +768,7 @@ impl LLVMCompiler {
}
// handled above per-branch
} else {
// Optional by-name fallback (debug): use NYASH_LLVM_ALLOW_BY_NAME=1
if std::env::var("NYASH_LLVM_ALLOW_BY_NAME").ok().as_deref() == Some("1") {
// Build global string for method name
let gsp = codegen.builder.build_global_string_ptr(method, "method_name").map_err(|e| e.to_string())?;
let mptr = gsp.as_pointer_value();
let argc_val = i64t.const_int(args.len() as u64, false);
let mut a1 = i64t.const_zero();
let mut a2 = i64t.const_zero();
let mut get_i64 = |vid: ValueId| -> Result<inkwell::values::IntValue, String> {
let v = *vmap.get(&vid).ok_or("arg missing")?;
Ok(match v {
BasicValueEnum::IntValue(iv) => iv,
BasicValueEnum::FloatValue(fv) => {
let slot = entry_builder.build_alloca(i64t, "f2i_slot").map_err(|e| e.to_string())?;
let fptr_ty = codegen.context.f64_type().ptr_type(AddressSpace::from(0));
let castp = codegen.builder.build_pointer_cast(slot, fptr_ty, "i64p_to_f64p").map_err(|e| e.to_string())?;
let _ = codegen.builder.build_store(castp, fv).map_err(|e| e.to_string())?;
codegen.builder.build_load(i64t, slot, "ld_f2i").map_err(|e| e.to_string())?.into_int_value()
},
BasicValueEnum::PointerValue(pv) => codegen.builder.build_ptr_to_int(pv, i64t, "p2i").map_err(|e| e.to_string())?,
_ => return Err("unsupported arg value (expect int or handle ptr)".to_string()),
})
};
if args.len() >= 1 { a1 = get_i64(args[0])?; }
if args.len() >= 2 { a2 = get_i64(args[1])?; }
// declare i64 @nyash.plugin.invoke_by_name_i64(i64 recv_h, i8* name, i64 argc, i64 a1, i64 a2)
let i8p = codegen.context.i8_type().ptr_type(AddressSpace::from(0));
let fnty = i64t.fn_type(&[i64t.into(), i8p.into(), i64t.into(), i64t.into(), i64t.into()], false);
let callee = codegen.module.get_function("nyash.plugin.invoke_by_name_i64").unwrap_or_else(|| codegen.module.add_function("nyash.plugin.invoke_by_name_i64", fnty, None));
let call = codegen.builder.build_call(callee, &[recv_h.into(), mptr.into(), argc_val.into(), a1.into(), a2.into()], "pinvoke_byname").map_err(|e| e.to_string())?;
if let Some(d) = dst {
let rv = call.try_as_basic_value().left().ok_or("invoke_by_name returned void".to_string())?;
// Treat like i64 path
if let Some(mt) = func.metadata.value_types.get(d) {
match mt {
crate::mir::MirType::Integer | crate::mir::MirType::Bool => { vmap.insert(*d, rv); }
crate::mir::MirType::Box(_) | crate::mir::MirType::String | crate::mir::MirType::Array(_) | crate::mir::MirType::Future(_) | crate::mir::MirType::Unknown => {
let h = if let BasicValueEnum::IntValue(iv) = rv { iv } else { return Err("invoke ret expected i64".to_string()); };
let pty = codegen.context.i8_type().ptr_type(AddressSpace::from(0));
let ptr = codegen.builder.build_int_to_ptr(h, pty, "ret_handle_to_ptr").map_err(|e| e.to_string())?;
vmap.insert(*d, ptr.into());
}
_ => { vmap.insert(*d, rv); }
}
} else { vmap.insert(*d, rv); }
}
} else {
return Err(format!("BoxCall requires method_id (by-id). Enable NYASH_LLVM_ALLOW_BY_NAME=1 to use by-name fallback for method '{}'", method));
}
return Err(format!("BoxCall requires method_id for method '{}'. The method_id should be automatically injected during MIR compilation.", method));
}
}
MirInstruction::ExternCall { dst, iface_name, method_name, args, effects: _ } => {
@ -1018,7 +978,7 @@ impl LLVMCompiler {
};
if let Some(d) = dst { vmap.insert(*d, out_ptr.into()); }
} else {
return Err(format!("ExternCall lowering unsupported: {}.{} (enable NYASH_LLVM_ALLOW_BY_NAME=1 to try by-name, or add a NyRT shim)", iface_name, method_name));
return Err(format!("ExternCall lowering unsupported: {}.{} (add a NyRT shim for this interface method)", iface_name, method_name));
}
}
MirInstruction::UnaryOp { dst, op, operand } => {