build/program.disasm.txt

@@ -0,0 +1,17 @@
+00000000  Call U32(18) U32(0)
+0000000A  FrameSync 
+0000000C  Jmp U32(0)
+00000012  PushI32 U32(1) ; test_supported.ts:2
+00000018  SetLocal U32(0) ; test_supported.ts:2
+0000001E  GetLocal U32(0) ; test_supported.ts:3
+00000024  PushI32 U32(10) ; test_supported.ts:3
+0000002A  Lt  ; test_supported.ts:3
+0000002C  JmpIfFalse U32(80) ; test_supported.ts:3
+00000032  GetLocal U32(0) ; test_supported.ts:4
+00000038  PushI32 U32(1) ; test_supported.ts:4
+0000003E  Add  ; test_supported.ts:4
+00000040  Dup  ; test_supported.ts:4
+00000042  SetLocal U32(0) ; test_supported.ts:4
+00000048  Pop  ; test_supported.ts:4
+0000004A  Jmp U32(80)
+00000050  Ret 

build/symbols.json

@@ -0,0 +1,74 @@
+[
+  {
+    "pc": 18,
+    "file": "test_supported.ts",
+    "line": 2,
+    "col": 13
+  },
+  {
+    "pc": 24,
+    "file": "test_supported.ts",
+    "line": 2,
+    "col": 9
+  },
+  {
+    "pc": 30,
+    "file": "test_supported.ts",
+    "line": 3,
+    "col": 9
+  },
+  {
+    "pc": 36,
+    "file": "test_supported.ts",
+    "line": 3,
+    "col": 13
+  },
+  {
+    "pc": 42,
+    "file": "test_supported.ts",
+    "line": 3,
+    "col": 9
+  },
+  {
+    "pc": 44,
+    "file": "test_supported.ts",
+    "line": 3,
+    "col": 5
+  },
+  {
+    "pc": 50,
+    "file": "test_supported.ts",
+    "line": 4,
+    "col": 13
+  },
+  {
+    "pc": 56,
+    "file": "test_supported.ts",
+    "line": 4,
+    "col": 17
+  },
+  {
+    "pc": 62,
+    "file": "test_supported.ts",
+    "line": 4,
+    "col": 13
+  },
+  {
+    "pc": 64,
+    "file": "test_supported.ts",
+    "line": 4,
+    "col": 9
+  },
+  {
+    "pc": 66,
+    "file": "test_supported.ts",
+    "line": 4,
+    "col": 9
+  },
+  {
+    "pc": 72,
+    "file": "test_supported.ts",
+    "line": 4,
+    "col": 9
+  }
+]

crates/prometeu-bytecode/src/asm.rs

@@ -18,6 +18,18 @@ pub enum Asm {
     Label(String),
 }
 
+pub fn update_pc_by_operand(initial_pc: u32, operands: &Vec<Operand>) -> u32 {
+    let mut pcp: u32 = initial_pc;
+    for operand in operands {
+        match operand {
+            Operand::U32(_) | Operand::I32(_) | Operand::Label(_) => pcp += 4,
+            Operand::I64(_) | Operand::F64(_) => pcp += 8,
+            Operand::Bool(_) => pcp += 1,
+        }
+    }
+    pcp
+}
+
 pub fn assemble(instructions: &[Asm]) -> Result<Vec<u8>, String> {
     let mut labels = HashMap::new();
     let mut current_pc = 0u32;
@@ -30,13 +42,7 @@ pub fn assemble(instructions: &[Asm]) -> Result<Vec<u8>, String> {
             }
             Asm::Op(_opcode, operands) => {
                 current_pc += 2; // OpCode is u16 (2 bytes)
-                for operand in operands {
-                    match operand {
-                        Operand::U32(_) | Operand::I32(_) | Operand::Label(_) => current_pc += 4,
-                        Operand::I64(_) | Operand::F64(_) => current_pc += 8,
-                        Operand::Bool(_) => current_pc += 1,
-                    }
-                }
+                current_pc = update_pc_by_operand(current_pc, operands);
             }
         }
     }

crates/prometeuc/src/codegen/ast_util.rs

@@ -0,0 +1,22 @@
+use oxc_ast::ast::*;
+use anyhow::{Result, anyhow};
+
+pub fn get_callee_name(expr: &Expression) -> Result<String> {
+    match expr {
+        Expression::Identifier(ident) => Ok(ident.name.to_string()),
+        Expression::StaticMemberExpression(member) => {
+            let obj = get_callee_name_from_member_obj(&member.object)?;
+            let prop = member.property.name.to_string();
+            Ok(format!("{}.{}", obj, prop))
+        }
+        _ => Err(anyhow!("Unsupported callee expression")),
+    }
+}
+
+pub fn get_callee_name_from_member_obj(expr: &Expression) -> Result<String> {
+    if let Expression::Identifier(ident) = expr {
+        Ok(ident.name.to_string())
+    } else {
+        Err(anyhow!("Unsupported member object expression"))
+    }
+}

crates/prometeuc/src/codegen/codegen.rs

@@ -5,7 +5,9 @@ use prometeu_bytecode::opcode::OpCode;
 use prometeu_bytecode::asm::{Asm, Operand, assemble};
 use crate::compiler::Symbol;
 use crate::syscall_map;
+use crate::codegen::ast_util;
 use std::collections::HashMap;
+use prometeu_bytecode::asm;
 
 pub struct Codegen {
     file_name: String,
@@ -203,7 +205,7 @@ impl Codegen {
                 self.emit_op(op, vec![], unary.span);
             }
             Expression::CallExpression(call) => {
-                let name = self.get_callee_name(&call.callee)?;
+                let name = ast_util::get_callee_name(&call.callee)?;
                 if let Some(syscall_id) = syscall_map::map_syscall(&name) {
                     if name == "input.btnA" {
                         self.emit_op(OpCode::PushI32, vec![Operand::I32(syscall_map::BTN_A as i32)], call.span);
@@ -222,7 +224,7 @@ impl Codegen {
                 }
             }
             Expression::StaticMemberExpression(member) => {
-                let obj = self.get_callee_name_from_member_obj(&member.object)?;
+                let obj = ast_util::get_callee_name_from_member_obj(&member.object)?;
                 let prop = member.property.name.to_string();
                 let full_name = format!("{}.{}", obj, prop);
                 // If it's used as a value (GetGlobal/GetLocal?), but for now we only support it in calls
@@ -233,26 +235,6 @@ impl Codegen {
         Ok(())
     }
 
-    fn get_callee_name(&self, expr: &Expression) -> Result<String> {
-        match expr {
-            Expression::Identifier(ident) => Ok(ident.name.to_string()),
-            Expression::StaticMemberExpression(member) => {
-                let obj = self.get_callee_name_from_member_obj(&member.object)?;
-                let prop = member.property.name.to_string();
-                Ok(format!("{}.{}", obj, prop))
-            }
-            _ => Err(anyhow!("Unsupported callee expression at {:?}", expr.span())),
-        }
-    }
-
-    fn get_callee_name_from_member_obj(&self, expr: &Expression) -> Result<String> {
-        if let Expression::Identifier(ident) = expr {
-            Ok(ident.name.to_string())
-        } else {
-            Err(anyhow!("Unsupported member object expression"))
-        }
-    }
-
     fn new_label(&mut self, prefix: &str) -> String {
         let label = format!("{}_{}", prefix, self.label_count);
         self.label_count += 1;
@@ -310,13 +292,7 @@ impl Codegen {
                     }
 
                     current_pc += 2;
-                    for operand in operands {
-                        match operand {
-                            Operand::U32(_) | Operand::I32(_) | Operand::Label(_) => current_pc += 4,
-                            Operand::I64(_) | Operand::F64(_) => current_pc += 8,
-                            Operand::Bool(_) => current_pc += 1,
-                        }
-                    }
+                    current_pc = asm::update_pc_by_operand(current_pc, operands);
                 }
             }
         }

crates/prometeuc/src/codegen/mod.rs

@@ -1,3 +1,5 @@
 pub mod codegen;
+pub mod validator;
+pub mod ast_util;
 
 pub use codegen::Codegen;

crates/prometeuc/src/codegen/validator.rs

@@ -0,0 +1,140 @@
+use oxc_ast::ast::*;
+use oxc_ast::visit::walk;
+use oxc_ast::Visit;
+use oxc_span::GetSpan;
+use anyhow::{Result, anyhow};
+use crate::syscall_map;
+use crate::codegen::ast_util;
+
+pub struct Validator {
+    errors: Vec<String>,
+}
+
+impl Validator {
+    pub fn validate(program: &Program) -> Result<()> {
+        let mut validator = Self { errors: Vec::new() };
+        
+        // 1. Check for exported tick function
+        let mut tick_fn_found = false;
+        for item in &program.body {
+            if let Statement::ExportNamedDeclaration(decl) = item {
+                if let Some(Declaration::FunctionDeclaration(f)) = &decl.declaration {
+                    if let Some(ident) = &f.id {
+                        if ident.name == "tick" {
+                            tick_fn_found = true;
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+        
+        if !tick_fn_found {
+            validator.errors.push("export function tick() not found".to_string());
+        }
+
+        // 2. Recursive validation of the AST
+        validator.visit_program(program);
+
+        if validator.errors.is_empty() {
+            Ok(())
+        } else {
+            Err(anyhow!("Validation errors:\n{}", validator.errors.join("\n")))
+        }
+    }
+}
+
+impl<'a> Visit<'a> for Validator {
+    fn visit_statement(&mut self, stmt: &Statement<'a>) {
+        match stmt {
+            Statement::VariableDeclaration(_) |
+            Statement::ExpressionStatement(_) |
+            Statement::IfStatement(_) |
+            Statement::BlockStatement(_) |
+            Statement::ExportNamedDeclaration(_) |
+            Statement::FunctionDeclaration(_) => {
+                // Supported
+                walk::walk_statement(self, stmt);
+            }
+            _ => {
+                self.errors.push(format!("Unsupported statement type at {:?}", stmt.span()));
+            }
+        }
+    }
+
+    fn visit_expression(&mut self, expr: &Expression<'a>) {
+        match expr {
+            Expression::NumericLiteral(_) |
+            Expression::BooleanLiteral(_) |
+            Expression::Identifier(_) |
+            Expression::AssignmentExpression(_) |
+            Expression::BinaryExpression(_) |
+            Expression::LogicalExpression(_) |
+            Expression::UnaryExpression(_) |
+            Expression::CallExpression(_) |
+            Expression::StaticMemberExpression(_) => {
+                // Base types supported, detailed checks in specific visit methods if needed
+                walk::walk_expression(self, expr);
+            }
+            _ => {
+                self.errors.push(format!("Unsupported expression type at {:?}", expr.span()));
+            }
+        }
+    }
+
+    fn visit_unary_expression(&mut self, expr: &UnaryExpression<'a>) {
+        match expr.operator {
+            UnaryOperator::UnaryNegation |
+            UnaryOperator::UnaryPlus |
+            UnaryOperator::LogicalNot => {
+                walk::walk_unary_expression(self, expr);
+            }
+            _ => {
+                self.errors.push(format!("Unsupported unary operator {:?} at {:?}", expr.operator, expr.span));
+            }
+        }
+    }
+
+    fn visit_binary_expression(&mut self, expr: &BinaryExpression<'a>) {
+        match expr.operator {
+            BinaryOperator::Addition |
+            BinaryOperator::Subtraction |
+            BinaryOperator::Multiplication |
+            BinaryOperator::Division |
+            BinaryOperator::Equality |
+            BinaryOperator::Inequality |
+            BinaryOperator::LessThan |
+            BinaryOperator::GreaterThan |
+            BinaryOperator::LessEqualThan |
+            BinaryOperator::GreaterEqualThan => {
+                walk::walk_binary_expression(self, expr);
+            }
+            _ => {
+                self.errors.push(format!("Unsupported binary operator {:?} at {:?}", expr.operator, expr.span));
+            }
+        }
+    }
+
+    fn visit_call_expression(&mut self, expr: &CallExpression<'a>) {
+        if let Ok(name) = ast_util::get_callee_name(&expr.callee) {
+            if syscall_map::map_syscall(&name).is_none() {
+                self.errors.push(format!("Unsupported function call: {} at {:?}", name, expr.span));
+            }
+        } else {
+            self.errors.push(format!("Unsupported callee expression at {:?}", expr.callee.span()));
+        }
+        walk::walk_call_expression(self, expr);
+    }
+
+    fn visit_logical_expression(&mut self, expr: &LogicalExpression<'a>) {
+        match expr.operator {
+            LogicalOperator::And |
+            LogicalOperator::Or => {
+                walk::walk_logical_expression(self, expr);
+            }
+            _ => {
+                self.errors.push(format!("Unsupported logical operator {:?} at {:?}", expr.operator, expr.span));
+            }
+        }
+    }
+}

crates/prometeuc/src/compiler.rs

@@ -4,6 +4,7 @@ use oxc_allocator::Allocator;
 use oxc_parser::Parser;
 use oxc_span::SourceType;
 use crate::codegen::Codegen;
+use crate::codegen::validator::Validator;
 use std::fs;
 use prometeu_bytecode::disasm::disasm;
 use serde::Serialize;
@@ -16,7 +17,49 @@ pub struct Symbol {
     pub col: usize,
 }
 
-pub fn compile(entry: &Path, out: &Path, emit_disasm: bool, emit_symbols: bool) -> Result<()> {
+pub struct CompilationUnit {
+    pub rom: Vec<u8>,
+    pub symbols: Vec<Symbol>,
+}
+
+impl CompilationUnit {
+    pub fn export(&self, out: &Path, emit_disasm: bool, emit_symbols: bool) -> Result<()> {
+        fs::write(out, &self.rom).with_context(|| format!("Failed to write PBC to {:?}", out))?;
+
+        if emit_symbols {
+            let symbols_path = out.with_file_name("symbols.json");
+            let symbols_json = serde_json::to_string_pretty(&self.symbols)?;
+            fs::write(&symbols_path, symbols_json)?;
+        }
+
+        if emit_disasm {
+            let disasm_path = out.with_extension("disasm.txt");
+            let instructions = disasm(&self.rom).map_err(|e| anyhow::anyhow!("Disassembly failed: {}", e))?;
+            
+            let mut disasm_text = String::new();
+            for instr in instructions {
+                let symbol = self.symbols.iter().find(|s| s.pc == instr.pc);
+                let comment = if let Some(s) = symbol {
+                    format!(" ; {}:{}", s.file, s.line)
+                } else {
+                    "".to_string()
+                };
+
+                let operands_str = instr.operands.iter()
+                    .map(|o| format!("{:?}", o))
+                    .collect::<Vec<_>>()
+                    .join(" ");
+                
+                disasm_text.push_str(&format!("{:08X}  {:?} {}{}\n", instr.pc, instr.opcode, operands_str, comment));
+            }
+            fs::write(disasm_path, disasm_text)?;
+        }
+
+        Ok(())
+    }
+}
+
+pub fn compile(entry: &Path) -> Result<CompilationUnit> {
     let source_text = fs::read_to_string(entry)
         .with_context(|| format!("Failed to read entry file: {:?}", entry))?;
 
@@ -34,39 +77,13 @@ pub fn compile(entry: &Path, out: &Path, emit_disasm: bool, emit_symbols: bool)
             return Err(anyhow::anyhow!("Failed to parse module"));
         }
 
+        Validator::validate(&ret.program)?;
+
         codegen.compile_program(&ret.program)?
     };
 
-    fs::write(out, &rom).with_context(|| format!("Failed to write PBC to {:?}", out))?;
-
-    if emit_symbols {
-        let symbols_path = out.with_file_name("symbols.json");
-        let symbols_json = serde_json::to_string_pretty(&codegen.symbols)?;
-        fs::write(&symbols_path, symbols_json)?;
-    }
-
-    if emit_disasm {
-        let disasm_path = out.with_extension("disasm.txt");
-        let instructions = disasm(&rom).map_err(|e| anyhow::anyhow!("Disassembly failed: {}", e))?;
-        
-        let mut disasm_text = String::new();
-        for instr in instructions {
-            let symbol = codegen.symbols.iter().find(|s| s.pc == instr.pc);
-            let comment = if let Some(s) = symbol {
-                format!(" ; {}:{}", s.file, s.line)
-            } else {
-                "".to_string()
-            };
-
-            let operands_str = instr.operands.iter()
-                .map(|o| format!("{:?}", o))
-                .collect::<Vec<_>>()
-                .join(" ");
-            
-            disasm_text.push_str(&format!("{:08X}  {:?} {}{}\n", instr.pc, instr.opcode, operands_str, comment));
-        }
-        fs::write(disasm_path, disasm_text)?;
-    }
-
-    Ok(())
+    Ok(CompilationUnit {
+        rom,
+        symbols: codegen.symbols,
+    })
 }

crates/prometeuc/src/main.rs

@@ -29,7 +29,8 @@ fn main() -> Result<()> {
             println!("Entry: {:?}", entry);
             println!("Output: {:?}", out);
 
-            compiler::compile(&entry, &out, emit_disasm, emit_symbols)?;
+            let compilation_unit = compiler::compile(&entry)?;
+            compilation_unit.export(&out, emit_disasm, emit_symbols)?;
         }
     }