文件列表:

.vscode/
bffmt/
cli/
examples/
lang/
utils/
LICENSE
Makefile
go.mod
go.sum
main.go
test.py

# bfgo bfgo is an overengineered BF toolkit written in Go. ## Features The toolkit includes the following features: - Native Compiler - JVM Compiler - JavaScript Compiler - Interpreter - REPL - Formatter - Minifier ### Compiler The compiler can compile for three different targets: - Binary for native execution - JVM bytecode - JavaScript for running in the browser #### Native **Example:** `$ bfgo examples/hello.bf` Creates a binary `hello`. Run with `./hello`. #### JVM Compiler **Example:** `$ bfgo -jvm examples/hello.bf` Generates a JVM classfile `Hello.class`. Run with `java Hello`. #### JavaScript Compiler **Example:** `$ bfgo -js examples/hello.bf` Generates a JavaScript file `hello.js` and an HTML file `hello.html`. Run your favorite HTTP server and load `hello.html` in the browser. The output will replace the document ``. ### The Optimizer All compile targets can be compiled with **the optimizer**. The optimizer options are: - `-F`: Fast - Uses fast IR generation - Results in fast compile times - Causes Slow execution - > use `-o-compile` or `-F` - `-B`: Balanced - Default behaviour - Applies some optimizations - Balance between -F and -O - > use `-o-balanced` or `-B` - `-O`: Optimized - Uses the full optimizer - Dead code elimination - Canonicalization - Smaller binary size - Also performs binary stripping - Causes Slow compile times - Results in very fast execution - > use `-o-performance` or `-O` ### Interpreter Executes given BF file. There is still room for improvement when it comes to performance. Feel free to submit a PR. > use `-interpret` #### REPL The REPL is a command line interface for the interpreter. It can be used to execute BF interactively. > use `-repl` ### bffmt BF formatter bundled with `bfgo`. > Warning: bffmt currently omits all comments. Feel free to submit a PR for support for comments. > use `-fmt` Example formatted snippet from `examples/fibonacci.bf`: ```plaintext [ +++++ [>++++++++<-]> . <++++++ [>--------<-]+<<< ] ``` #### Minifier bffmt can also minify BF code, leaving only valid characters, minimizing file size. ## Cli Flags ```plaintext --run, -r Immediately run binary after compilation (default: false) --output value, -o value Specify output binary --compile-only, -C Only compile, do not output a binary (default: false) --clang Use clang instead of default gcc (default: false) --jvm Compile to JVM bytecode (default: false) --js Compile to JavaScript (default: false) --o-compile, -F Disable optimizations and use fast compiler: fast compile time, slow execution (default: false) --o-balanced, -B Minimal optimizations for balanced compile time and performance, default behavior (default: false) --o-performance, -O Enable optimizations: fast execution, slow compile time (default: false) --interpret Interpret file instead of compiling (default: false) --repl Start a read-eval-print loop (default: false) --c-compiler-flags value Pass arbitrary flags to the compiler (gcc, clang or javac) --c-tape-size value Integer to specify length of BF tape (default: 30000) --c-tape-init value Integer value used to initialize all elements in BF tape (default: 0) --c-cell-type value Type used for BF tape in intermediate representation (default: "int") --d-dump-ir Dump intermediate representation (default: false) --d-keep-temp Do not remove temporary IR files (default: false) --d-print-ir-filepath Dump temporary IR filepath, use -d-keep-temp to keep them from being deleted (default: false) --d-print-compile-command Print C IR compiler command (default: false) --verbose, -v Print verbose output (default: false) --debug, -d Produce debug output, overrides -o (default: false) --time, -t Prints out execution time before exiting (default: false) --fmt Format code (omits comments) (default: false) --minify Minify code (default: false) --help, -h show help (default: false) ``` ## Benchmark The following is a benchmark of `examples/mandelbrot.bf` | Optimization Level | -F | -B | -O | | ------------------ | ------- | ---------- | ---------- | | Native (arm64) | 8 secs | 580 millis | 370 millis | | Native (x64) | 16 secs | 710 millis | 440 millis | | JVM | 22 secs | 13 secs | 13 secs | | JavaScript | 35 secs | 19 secs | 5 secs | > Native arm64 using entry level M2 MacBook Air > Native x64 using Ryzen 5 3600 > JavaScript using Google Chrome 106.0.5245.0 dev > JVM using latest OpenJDK 18 release

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