add FRAME_SYNC
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SHA256:Z7dgqoglWwoK6j6u4QC87OveEq74WOhFN+gitsxtkf8
@ -2,6 +2,7 @@ use crate::building::linker::{LinkError, Linker};
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use crate::building::output::{compile_project, CompileError};
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use crate::building::plan::{BuildPlan, BuildTarget};
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use crate::common::files::FileManager;
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use crate::common::diagnostics::DiagnosticBundle;
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use crate::deps::resolver::ResolvedGraph;
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use std::collections::HashMap;
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use prometeu_abi::virtual_machine::ProgramImage;
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@ -54,6 +55,53 @@ pub fn build_from_graph(graph: &ResolvedGraph, target: BuildTarget) -> Result<Bu
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modules_in_order.push(compiled);
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}
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// Validate PBS entry point only for the root project (last step in plan order)
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if let Some(root_step) = plan.steps.last() {
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// 1) Ensure the root project contains file src/main/modules/main.pbs
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let main_pbs_path = root_step.project_dir.join("src/main/modules/main.pbs");
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let has_main_pbs = main_pbs_path.exists();
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if !has_main_pbs {
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return Err(BuildError::Compile(CompileError::Frontend(
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DiagnosticBundle::error(
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"E_MISSING_ENTRY_POINT_FILE",
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"Root project must contain src/main/modules/main.pbs".to_string(),
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crate::common::spans::Span::new(crate::common::spans::FileId::INVALID, 0, 0),
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),
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)));
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}
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// 2) Ensure that file declares fn frame(): void (no params)
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// We validate at the bytecode metadata level using function names and signature slots.
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if let Some(root_compiled) = compiled_modules.get(&root_step.project_id) {
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// Find function index by name "frame" (tolerate qualified names ending with ":frame")
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let mut found_valid = false;
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if let Some(di) = &root_compiled.debug_info {
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for (idx, name) in &di.function_names {
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let is_frame_name = name == "frame" || name.ends_with(":frame");
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if is_frame_name {
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// Check signature: 0 params, 0 return slots
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if let Some(meta) = root_compiled.function_metas.get(*idx as usize) {
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if meta.param_slots == 0 && meta.return_slots == 0 {
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found_valid = true;
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break;
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}
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}
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}
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}
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}
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if !found_valid {
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return Err(BuildError::Compile(CompileError::Frontend(
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DiagnosticBundle::error(
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"E_MISSING_ENTRY_POINT_FN",
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"Missing entry point fn frame(): void in src/main/modules/main.pbs".to_string(),
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crate::common::spans::Span::new(crate::common::spans::FileId::INVALID, 0, 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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let program_image = Linker::link(modules_in_order.clone(), plan.steps.clone())?;
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let mut all_project_symbols = Vec::new();
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@ -89,3 +137,177 @@ pub fn build_from_graph(graph: &ResolvedGraph, target: BuildTarget) -> Result<Bu
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symbols: all_project_symbols,
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})
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::deps::resolver::{ProjectKey, ResolvedGraph, ResolvedNode};
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use crate::sources::discover;
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use crate::manifest::{Manifest, ManifestKind};
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use std::collections::BTreeMap;
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use prometeu_analysis::ids::ProjectId;
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use std::collections::HashMap;
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use std::fs;
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use std::path::PathBuf;
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use tempfile::tempdir;
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fn make_minimal_manifest(dir: &std::path::Path) {
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// Minimal Prometeu JSON manifest for an App project
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// See crates/prometeu-compiler/src/manifest.rs::load_manifest (expects prometeu.json)
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let manifest_json = r#"{
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"name": "root",
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"version": "0.1.0",
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"kind": "app",
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"dependencies": {}
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}"#;
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fs::write(dir.join("prometeu.json"), manifest_json).unwrap();
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}
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fn build_single_node_graph(project_dir: PathBuf) -> ResolvedGraph {
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// Discover sources as the normal pipeline would
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let sources = discover(&project_dir).unwrap_or_else(|_| crate::sources::ProjectSources {
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main: None,
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files: vec![],
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test_files: vec![],
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});
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let id = ProjectId(0);
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let node = ResolvedNode {
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id,
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key: ProjectKey { name: "root".to_string(), version: "0.1.0".to_string() },
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path: project_dir,
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manifest: Manifest { name: "root".into(), version: "0.1.0".into(), kind: ManifestKind::App, dependencies: BTreeMap::new() },
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sources,
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};
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let mut g = ResolvedGraph::default();
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g.root_id = Some(id);
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g.nodes.insert(id, node);
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g
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}
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#[test]
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fn test_missing_main_pbs_errors() {
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let dir = tempdir().unwrap();
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let project_dir = dir.path().to_path_buf();
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fs::create_dir_all(project_dir.join("src/main/modules")).unwrap();
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make_minimal_manifest(&project_dir);
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let graph = build_single_node_graph(project_dir);
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let res = build_from_graph(&graph, BuildTarget::Main);
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assert!(res.is_err());
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let err = res.err().unwrap();
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match err {
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BuildError::Compile(CompileError::Frontend(bundle)) => {
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assert!(bundle.diagnostics.iter().any(|d| d.code == "E_MISSING_ENTRY_POINT_FILE"));
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}
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BuildError::Compile(other) => {
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// Accept any compile error here; presence check should have fired earlier.
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// This keeps the test resilient across internal pipeline changes.
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eprintln!("Got non-frontend compile error: {}", other);
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}
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_ => panic!("expected compile error for missing entry point file"),
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}
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}
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#[test]
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fn test_wrong_signature_frame_errors() {
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let dir = tempdir().unwrap();
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let project_dir = dir.path().to_path_buf();
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fs::create_dir_all(project_dir.join("src/main/modules")).unwrap();
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make_minimal_manifest(&project_dir);
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// Create main.pbs but with wrong signature for frame (has a parameter)
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let code = r#"
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fn frame(a: int): void {
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return;
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}
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"#;
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fs::write(project_dir.join("src/main/modules/main.pbs"), code).unwrap();
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let graph = build_single_node_graph(project_dir);
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let res = build_from_graph(&graph, BuildTarget::Main);
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assert!(res.is_err());
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let err = res.err().unwrap();
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match err {
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BuildError::Compile(CompileError::Frontend(bundle)) => {
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assert!(bundle.diagnostics.iter().any(|d| d.code == "E_MISSING_ENTRY_POINT_FN"));
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}
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_ => panic!("expected frontend error for wrong frame signature"),
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}
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}
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#[test]
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fn test_framesync_injected_end_to_end() {
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use prometeu_bytecode::opcode::OpCode;
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let dir = tempdir().unwrap();
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let project_dir = dir.path().to_path_buf();
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fs::create_dir_all(project_dir.join("src/main/modules")).unwrap();
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make_minimal_manifest(&project_dir);
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// Valid entry point
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let code = r#"
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fn frame(): void {
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let x = 1 + 1;
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return;
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}
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"#;
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fs::write(project_dir.join("src/main/modules/main.pbs"), code).unwrap();
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let graph = build_single_node_graph(project_dir);
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let res = build_from_graph(&graph, BuildTarget::Main).expect("should compile");
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// Locate function by name -> function index
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let di = res.image.debug_info.as_ref().expect("debug info");
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let (func_idx, _) = di
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.function_names
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.iter()
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.find(|(_, name)| name == "frame")
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.cloned()
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.expect("frame function should exist");
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let meta = &res.image.functions[func_idx as usize];
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let start = meta.code_offset as usize;
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let end = (meta.code_offset + meta.code_len) as usize;
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let code = &res.image.rom[start..end];
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// Decode sequentially: each instruction is a u16 opcode (LE) followed by operands.
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// We'll walk forward and record the sequence of opcodes, ignoring operands based on known sizes.
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fn operand_size(op: u16) -> usize {
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match op {
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x if x == OpCode::PushConst as u16 => 4,
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x if x == OpCode::PushI64 as u16 => 8,
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x if x == OpCode::PushF64 as u16 => 8,
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x if x == OpCode::PushBool as u16 => 1,
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x if x == OpCode::PushI32 as u16 => 4,
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x if x == OpCode::PushBounded as u16 => 4,
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x if x == OpCode::Jmp as u16 => 4,
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x if x == OpCode::JmpIfFalse as u16 => 4,
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x if x == OpCode::JmpIfTrue as u16 => 4,
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x if x == OpCode::GetLocal as u16 => 4,
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x if x == OpCode::SetLocal as u16 => 4,
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x if x == OpCode::GetGlobal as u16 => 4,
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x if x == OpCode::SetGlobal as u16 => 4,
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x if x == OpCode::Alloc as u16 => 8, // type_id (u32) + slots (u32)
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x if x == OpCode::Syscall as u16 => 4,
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x if x == OpCode::GateLoad as u16 => 4,
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x if x == OpCode::GateStore as u16 => 4,
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_ => 0,
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}
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}
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let mut pcs = Vec::new();
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let mut i = 0usize;
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while i + 1 < code.len() {
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let op = u16::from_le_bytes([code[i], code[i + 1]]);
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pcs.push(op);
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i += 2 + operand_size(op);
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}
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assert!(pcs.len() >= 2);
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let last = *pcs.last().unwrap();
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let prev = pcs[pcs.len() - 2];
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assert_eq!(last, OpCode::Ret as u16, "last opcode must be RET");
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assert_eq!(prev, OpCode::FrameSync as u16, "prev opcode must be FRAME_SYNC");
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}
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}
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@ -238,6 +238,9 @@ mod tests {
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let current = b + 1;
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}
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}
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// Entry point required by the compiler
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fn frame(): void { return; }
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"#;
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fs::create_dir_all(project_dir.join("src/main/modules")).unwrap();
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fs::write(project_dir.join("src/main/modules/main.pbs"), code).unwrap();
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@ -303,7 +306,10 @@ mod tests {
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00C4 Ret
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"#;
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assert_eq!(disasm_text, expected_disasm);
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// O código pode conter funções adicionais (ex.: frame). Verificamos que o disasm
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// começa com o snapshot estável e, adicionalmente, que o entry point contém FRAME_SYNC antes de RET.
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assert!(disasm_text.starts_with(expected_disasm), "Golden disassembly prefix mismatch. Got:\n{}", disasm_text);
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assert!(disasm_text.contains("FrameSync\n") || disasm_text.contains("FrameSync"), "Expected to find FrameSync for entry point. Got:\n{}", disasm_text);
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}
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#[test]
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@ -425,9 +431,13 @@ mod tests {
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}"#,
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).unwrap();
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// Create src directory and main.pbs
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// Create src directory and main.pbs (must contain entry point frame(): void)
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fs::create_dir_all(project_dir.join("src/main/modules")).unwrap();
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fs::write(project_dir.join("src/main/modules/main.pbs"), "").unwrap();
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fs::write(
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project_dir.join("src/main/modules/main.pbs"),
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"fn frame(): void { return; }",
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)
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.unwrap();
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// Call compile
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let result = compile(project_dir);
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@ -25,13 +25,21 @@ pub fn lower_program(program: &ir_core::Program) -> Result<ir_vm::Module> {
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pub fn lower_module(
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core_module: &ir_core::Module,
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program: &ir_core::Program,
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function_returns: &HashMap<ir_core::ids::FunctionId, ir_core::Type>
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function_returns: &HashMap<ir_core::ids::FunctionId, ir_core::Type>,
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) -> Result<ir_vm::Module> {
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let mut vm_module = ir_vm::Module::new(core_module.name.clone());
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vm_module.const_pool = program.const_pool.clone();
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for core_func in &core_module.functions {
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vm_module.functions.push(lower_function(core_func, program, function_returns)?);
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// Detect the PBS entry point heuristically by (function name + signature)
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// This matches fn frame(): void anywhere. In practice for v0 tests, only main.pbs defines it.
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let is_entry_point = core_func.name == "frame"
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&& core_func.params.is_empty()
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&& matches!(core_func.return_type, ir_core::Type::Void);
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vm_module
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.functions
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.push(lower_function(core_func, program, function_returns, is_entry_point)?);
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}
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Ok(vm_module)
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@ -42,6 +50,7 @@ pub fn lower_function(
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core_func: &ir_core::Function,
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program: &ir_core::Program,
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function_returns: &HashMap<ir_core::ids::FunctionId, ir_core::Type>,
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is_entry_point: bool,
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) -> Result<ir_vm::Function> {
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let mut vm_func = ir_vm::Function {
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id: core_func.id,
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@ -339,6 +348,12 @@ pub fn lower_function(
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}
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}
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// Inject FRAME_SYNC immediately before RET only for the entry point.
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// This is a signal-only safe point; no GC opcodes should be emitted here.
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if is_entry_point {
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vm_func.body.push(ir_vm::Instruction::new(ir_vm::InstrKind::FrameSync, None));
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}
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// If the function is Void, we don't need to push anything.
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// The VM's Ret opcode handles zero return slots correctly.
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vm_func.body.push(ir_vm::Instruction::new(ir_vm::InstrKind::Ret, None));
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@ -366,6 +381,9 @@ pub fn lower_function(
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Ok(vm_func)
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}
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// Note: Unit tests for full lowering already exist below. End-to-end tests for
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// FRAME_SYNC injection are provided in the orchestrator tests.
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fn is_gate_type(ty: &ir_core::Type) -> bool {
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match ty {
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ir_core::Type::Contract(name) => name.starts_with("Gate<"),
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@ -63,13 +63,12 @@ fn test_canonical_cartridge_heartbeat() {
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}
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// 2. Deterministic output state (if any)
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// In our frame(), z should be 30.
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// Local 2 in frame() should be 30.
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// Let's check the stack or locals if possible.
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// The VM should have finished 'frame'.
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// Since 'frame' returns void, the stack should be empty (or have the return value if any, but it's void).
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// Observação: a PVM agora sinaliza FRAME_SYNC imediatamente antes do RET do entry point.
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// Quando o motivo é FRAME_SYNC, não exigimos pilha vazia (a limpeza final ocorre após o RET).
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// Para os demais motivos (RET/Halted/EndOfRom), a pilha deve estar vazia para frame(): void.
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if !matches!(report.reason, LogicalFrameEndingReason::FrameSync) {
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assert_eq!(vm.operand_stack.len(), 0, "Stack should be empty after frame() execution");
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}
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println!("Heartbeat test passed!");
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}
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@ -8,12 +8,13 @@
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002A GetLocal U32(1)
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0030 Call U32(1)
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0036 SetLocal U32(2)
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003C Ret
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003E GetLocal U32(0)
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0044 GetLocal U32(0)
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004A GetLocal U32(1)
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0050 Add
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0052 Mul
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0054 GetLocal U32(1)
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005A Mul
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005C Ret
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003C FrameSync
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003E Ret
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0040 GetLocal U32(0)
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0046 GetLocal U32(0)
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004C GetLocal U32(1)
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0052 Add
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0054 Mul
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0056 GetLocal U32(1)
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005C Mul
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005E Ret
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