From d1d06e5cc2f0dfb0840d9d3081840a1d62f55a63 Mon Sep 17 00:00:00 2001 From: Marco Thomas Date: Tue, 22 Apr 2025 10:07:02 +0900 Subject: [PATCH] ft: add debug and info logging --- Cargo.lock | 318 +++++++++++++++++++++++++++ Cargo.toml | 2 + {example => examples}/hello_world.bf | 0 examples/test.bf | 1 + examples/test2.bf | 1 + examples/test5.bf | 7 + examples/test8.bf | 5 + src/interpret.rs | 11 +- src/main.rs | 3 + 9 files changed, 346 insertions(+), 2 deletions(-) rename {example => examples}/hello_world.bf (100%) create mode 100644 examples/test.bf create mode 100644 examples/test2.bf create mode 100644 examples/test5.bf create mode 100644 examples/test8.bf diff --git a/Cargo.lock b/Cargo.lock index d77a0e1..82492dc 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2,6 +2,324 @@ # It is not intended for manual editing. version = 4 +[[package]] +name = "aho-corasick" +version = "1.1.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = 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b/Cargo.toml @@ -4,3 +4,5 @@ version = "0.1.0" edition = "2024" [dependencies] +env_logger = "0.11.8" +log = "0.4.27" diff --git a/example/hello_world.bf b/examples/hello_world.bf similarity index 100% rename from example/hello_world.bf rename to examples/hello_world.bf diff --git a/examples/test.bf b/examples/test.bf new file mode 100644 index 0000000..3b271db --- /dev/null +++ b/examples/test.bf @@ -0,0 +1 @@ ++++++++++[>++++++++<-]>. diff --git a/examples/test2.bf b/examples/test2.bf new file mode 100644 index 0000000..4671a94 --- /dev/null +++ b/examples/test2.bf @@ -0,0 +1 @@ +>+++++++++[<++++++++>-]<.>+++++++[<++++>-]<+.+++++++..+++.[-]>++++++++[<++ ++>-]<.>+++++++++++[<+++++>-]<.>++++++++[<+++>-]<.+++.------.--------.[-]> ++++++++[<++++>-]<+.[-]++++++++++. diff --git a/examples/test5.bf b/examples/test5.bf new file mode 100644 index 0000000..91f8f2d --- /dev/null +++ b/examples/test5.bf @@ -0,0 +1,7 @@ +++++>++><< +[- + >[->>+<<] + >>[-<+<+>>] + <<< +]>> +++++++++++++++++++++++++++++++++++++++++++++++++. diff --git a/examples/test8.bf b/examples/test8.bf new file mode 100644 index 0000000..0d08fdf --- /dev/null +++ b/examples/test8.bf @@ -0,0 +1,5 @@ +>>++++++++[->++++++++<]>>>>+++++++++[->++++++++++<]>[<<,[->+<<+<<+>>>]<<<[ +->>>+<<<]>>>>>[->+>>+<<<]>[<<[->+>>+<<<]>>>[-<<<+>>>]<<[[-]<->]>-]>>[-<<<+ +>>>]<<<<<<<[-<+<<+>>>]<[>>[-<+<<+>>>]<<<[->>>+<<<]>>[[-]>-<]<-]<<[->>>+<<< +]>>>>><[[-]>++++++++++++++++++++++++++++++++>[[-]<------------------------ +-------->]<<]>>[-]<.>>] diff --git a/src/interpret.rs b/src/interpret.rs index c0f2f2a..4c557ab 100644 --- a/src/interpret.rs +++ b/src/interpret.rs @@ -7,8 +7,11 @@ pub fn interpret(code: &str) -> Vec { let mut loop_stack = Vec::new(); let mut out = Vec::new(); + log::info!("Program size: {}", code.len()); + let code_bytes = code.as_bytes(); while pc < code.len() { + log::debug!("Next instruction: {}", code_bytes[pc] as char); match code_bytes[pc] as char { '>' => head += 1, '<' => head -= 1, @@ -23,6 +26,7 @@ pub fn interpret(code: &str) -> Vec { if io::stdin().read_exact(&mut input_buf).is_ok() { memory[head] = input_buf[0]; } + log::debug!("Read user input: {}", input_buf[0]); } '[' => { // loop start @@ -46,6 +50,7 @@ pub fn interpret(code: &str) -> Vec { } } else { // save pc to jump back to + log::info!("Pushing location {} onto loop stack", pc); loop_stack.push(pc); } } @@ -60,10 +65,12 @@ pub fn interpret(code: &str) -> Vec { } } else { // loop done, continue normally - loop_stack.pop(); + let location = loop_stack.pop(); + log::info!("Done with loop at location {}", location.unwrap()); } } - _ => panic!("Invalid instruction"), + // ignore unknown characters (e.g. weird line endings) + _ => {} } pc += 1; } diff --git a/src/main.rs b/src/main.rs index f3f20f9..ec41f64 100644 --- a/src/main.rs +++ b/src/main.rs @@ -4,6 +4,8 @@ use std::{env, fs, process}; mod interpret; fn main() { + env_logger::init(); + let args: Vec<_> = env::args().collect(); if args.len() != 2 { eprintln!("Usage: {} ", args[0]); @@ -15,5 +17,6 @@ fn main() { panic!("Error reading file {}: {}", filename, err); }); + println!("Running file {} with program {}", filename, code); interpret(&code); }