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|
mod compiler;
mod parsers;
mod report;
mod tokens;
mod formats;
pub use compiler::*;
pub use parsers::*;
pub use report::*;
pub use tokens::*;
pub use formats::*;
pub use assembler::*;
use log::{info, fatal};
use switchboard::{Switchboard, SwitchQuery};
use std::io::{Read, Write};
use std::str::FromStr;
fn print_version() -> ! {
let version = env!("CARGO_PKG_VERSION");
eprintln!("torque assembler, version {version}");
eprintln!("written by ben bridle");
std::process::exit(0);
}
fn main() {
let mut args = Switchboard::from_env();
if args.named("version").as_bool() {
print_version();
}
if args.named("verbose").short('v').as_bool() {
log::set_log_level(log::LogLevel::Info);
}
let source_path = args.positional("source").as_path_opt().map(
|p| p.canonicalize().unwrap_or_else(|e| fatal!("{p:?}: {e:?}")));
let destination_path = args.positional("destination").as_path_opt();
let extension = args.named("ext").default("tq").as_string();
let no_libs = args.named("no-libs").as_bool();
let no_project_libs = args.named("no-project-libs").as_bool();
let no_environment_libs = args.named("no-env-libs").as_bool();
let format = args.named("format").default("debug").as_string();
let print_tree = args.named("tree").as_bool();
let dry_run = args.named("dry-run").short('n').as_bool();
let Ok(format) = Format::from_str(format.as_str()) else {
fatal!("Unknown format '{format}', expected 'debug', 'inhx32', 'raw', or 'source'. ");
};
// -----------------------------------------------------------------------
let mut compiler = if let Some(path) = &source_path {
info!("Reading program source from {path:?}");
Compiler::from_path(path).unwrap_or_else(|err| match err {
FileError::InvalidExtension => fatal!(
"File {path:?} has invalid extension, must be '.{extension}'"),
FileError::NotFound => fatal!(
"File {path:?} was not found"),
FileError::InvalidUtf8 => fatal!(
"File {path:?} does not contain valid UTF-8 text"),
FileError::NotReadable => fatal!(
"File {path:?} is not readable"),
FileError::IsADirectory => fatal!(
"File {path:?} is a directory"),
FileError::Unknown => fatal!(
"Unknown error while attempting to read from {path:?}")
})
} else {
let mut source_code = String::new();
info!("Reading program source from standard input");
if let Err(err) = std::io::stdin().read_to_string(&mut source_code) {
fatal!("Could not read from standard input\n{err:?}");
}
Compiler::from_string(source_code, "<standard input>")
};
if compiler.error().is_some() && !no_libs && !no_project_libs {
compiler.include_libs_from_parent(&extension);
}
if compiler.error().is_some() && !no_libs && !no_environment_libs {
compiler.include_libs_from_path_variable("TORQUE_LIBS", &extension);
}
if print_tree {
compiler.resolver.hierarchy().report()
}
if let Some(error) = compiler.error() {
error.report();
std::process::exit(1);
}
let merged_source = compiler.get_compiled_source().unwrap_or_else(|error| {
error.report();
std::process::exit(1);
});
if format == Format::Source && !dry_run {
write_bytes_and_exit(merged_source.as_bytes(), destination_path.as_ref());
}
// -----------------------------------------------------------------------
// Parse syntactic tokens from merged source code.
let path = Some("<merged source>");
let syntactic_tokens = SyntacticParser::new(&merged_source, path).parse();
report_syntactic_errors(&syntactic_tokens, &merged_source);
let program = SemanticParser::new(syntactic_tokens).parse();
report_semantic_errors(&program, &merged_source);
// program.print_definitions();
let assembled_tokens = program.assemble();
report_assembler_errors(&assembled_tokens, &merged_source);
let bytecode = BytecodeGenerator::new(&assembled_tokens).generate();
report_bytecode_errors(&bytecode, &merged_source);
if !dry_run {
match format {
Format::Debug => {
let mut output = String::new();
for word in &bytecode.words {
output.push_str(&word.to_string());
output.push('\n');
}
write_bytes_and_exit(output.as_bytes(), destination_path.as_ref());
}
Format::Inhx32 => {
let output = format_inhx32(&bytecode.words);
write_bytes_and_exit(output.as_bytes(), destination_path.as_ref());
}
Format::Raw => {
let mut output = Vec::new();
for word in &bytecode.words {
let value = word.value as u16;
output.extend(value.to_be_bytes());
}
write_bytes_and_exit(&output, destination_path.as_ref());
}
Format::Source => unreachable!(),
}
}
}
fn write_bytes_and_exit<P: AsRef<Path>>(bytes: &[u8], path: Option<&P>) -> ! {
match path {
Some(path) => match std::fs::write(path, bytes) {
Ok(_) => info!("Wrote output to path {:?}", path.as_ref()),
Err(err) => fatal!("Could not write to path {:?}\n{err:?}", path.as_ref()),
}
None => match std::io::stdout().write_all(bytes) {
Ok(_) => info!("Wrote output to standard output"),
Err(err) => fatal!("Could not write to standard output\n{err:?}"),
}
}
std::process::exit(0);
}
#[derive(PartialEq)]
enum Format {
Debug,
Inhx32,
Raw,
Source,
}
impl FromStr for Format {
type Err = ();
fn from_str(string: &str) -> Result<Self, ()> {
match string {
"debug" => Ok(Self::Debug),
"inhx32" => Ok(Self::Inhx32),
"raw" => Ok(Self::Raw),
"source" => Ok(Self::Source),
_ => Err(()),
}
}
}
|
