tomoaki
f740e6542f
Phase 285LLVM-1.1 to 1.4 + weak reference infrastructure: **LLVM Harness** (Phase 285LLVM-1.x): - 285LLVM-1.1: User Box registration & debug output - 285LLVM-1.2: WeakRef basic operations (identity deferred) - 285LLVM-1.3: InstanceBox field access (getField/setField) - 285LLVM-1.4: print Handle resolution (type tag propagation) **VM Runtime** (nyash_kernel): - FFI functions: nyrt_weak_new, nyrt_weak_to_strong, nyrt_weak_drop (crates/nyash_kernel/src/lib.rs: +209 lines) - WeakRef plugin invoke support (crates/nyash_kernel/src/plugin/invoke.rs: +250 lines) - weak_handles.rs: WeakRef handle registry (NEW) **LLVM Python Backend**: - WeakRef instruction lowering (weak.py: NEW) - Entry point integration (entry.py: +93 lines) - Instruction lowering (instruction_lower.py: +13 lines) - LLVM harness runner script (tools/run_llvm_harness.sh: NEW) **MIR & Runtime**: - WeakRef emission & validation - MIR JSON export for weak instructions - Environment variable support (NYASH_WEAK_*, HAKO_WEAK_*) **Documentation**: - CLAUDE.md: Phase 285 completion notes - LANGUAGE_REFERENCE_2025.md: Weak reference syntax - 10-Now.md & 30-Backlog.md: Phase 285 status updates Total: +864 lines, 24 files changed SSOT: docs/reference/language/lifecycle.md Related: Phase 285W-Syntax-0, Phase 285W-Syntax-0.1
65 lines
2.8 KiB
Rust
65 lines
2.8 KiB
Rust
//! Fallback executor for LLVM mode (mock/legacy)
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//!
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//! Handles fallback execution when LLVM backends are not available.
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use nyash_rust::{mir::MirModule, mir::MirInstruction};
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use super::error::LlvmRunError;
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/// Fallback executor Box
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///
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/// **Responsibility**: Execute fallback path (feature check + mock)
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/// **Input**: &MirModule
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/// **Output**: Result<i32, LlvmRunError> (Ok(exit_code) on success, Err on failure)
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pub struct FallbackExecutorBox;
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impl FallbackExecutorBox {
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/// Execute fallback path (feature check + mock)
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///
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/// Fail-fast: if the user explicitly requested the llvmlite harness
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/// but this binary was built without the `llvm-harness` feature,
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/// do not silently fall back to mock.
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///
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/// Otherwise, executes mock execution that inspects the MIR
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/// and returns a deterministic exit code based on Return instructions.
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pub fn execute(module: &MirModule) -> Result<i32, LlvmRunError> {
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// Fail-fast: if the user explicitly requested the llvmlite harness
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// but this binary was built without the `llvm-harness` feature,
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// do not silently fall back to mock.
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if crate::config::env::env_bool("NYASH_LLVM_USE_HARNESS") {
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return Err(LlvmRunError::fatal(
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"LLVM harness requested (NYASH_LLVM_USE_HARNESS=1), but this binary was built without `--features llvm` (llvm-harness).\n\
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Fix:\n cargo build --release -p nyash-rust --features llvm --bin hakorune\n\
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Then ensure prerequisites:\n cargo build --release -p nyash-llvm-compiler\n cargo build --release -p nyash_kernel\n\
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Tip: tools/run_llvm_harness.sh <program.hako>"
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));
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}
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crate::console_println!("🔧 Mock LLVM Backend Execution:");
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crate::console_println!(" Build with --features llvm for real backend.");
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// NamingBox SSOT: Select entry (arity-aware, Main.main → main fallback)
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let entry = crate::runner::modes::common_util::entry_selection::select_entry_function(module);
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if let Some(main_func) = module.functions.get(&entry) {
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for (_bid, block) in &main_func.blocks {
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for inst in &block.instructions {
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match inst {
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MirInstruction::Return { value: Some(_) } => {
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crate::console_println!("✅ Mock exit code: 42");
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return Ok(42);
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}
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MirInstruction::Return { value: None } => {
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crate::console_println!("✅ Mock exit code: 0");
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return Ok(0);
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}
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_ => {}
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}
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}
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}
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}
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crate::console_println!("✅ Mock exit code: 0");
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Ok(0)
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}
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}
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