diff options
Diffstat (limited to 'src/vm.rs')
| -rw-r--r-- | src/vm.rs | 22 |
1 files changed, 21 insertions, 1 deletions
@@ -63,9 +63,10 @@ pub struct VM { pub print_blocks: bool, pub print_ops: bool, + runtime: bool, - extern_functions: Vec<RustFunction>, + extern_functions: Vec<RustFunction>, } #[derive(Eq, PartialEq)] @@ -92,6 +93,7 @@ impl VM { print_blocks: false, print_ops: false, + runtime: false, extern_functions: Vec::new() } @@ -158,10 +160,25 @@ impl VM { self.frame().block.borrow().ops[ip] } + fn print_stacktrace(&self) { + if !self.runtime { return; } + + println!("\n<{}>", "STACK".red()); + for (i, frame) in self.frames.iter().enumerate() { + println!(" {:>3}. {}:{:<4} in {:10}", + i, + frame.block.borrow().file.display(), + frame.block.borrow().line(self.frame().ip), + frame.block.borrow().name.blue()); + } + println!("") + } + /// Stop the program, violently fn crash_and_burn(&self) -> ! { self.print_stack(); println!("\n"); + self.print_stacktrace(); self.frame().block.borrow().debug_print(); println!(" ip: {}, line: {}\n", self.frame().ip.blue(), @@ -171,6 +188,7 @@ impl VM { fn error(&self, kind: ErrorKind, message: Option<String>) -> Error { let frame = self.frames.last().unwrap(); + self.print_stacktrace(); Error { kind, file: frame.block.borrow().file.clone(), @@ -472,6 +490,7 @@ impl VM { self.extern_functions = prog.functions.clone(); self.stack.clear(); self.frames.clear(); + self.runtime = true; self.push(Value::Function(Vec::new(), Rc::clone(&block))); @@ -755,6 +774,7 @@ impl VM { self.blobs = prog.blobs.clone(); self.constants = prog.constants.clone(); self.strings = prog.strings.clone(); + self.runtime = false; self.extern_functions = prog.functions.clone(); for block in prog.blocks.iter() { |