Working transpiler
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@@ -16,11 +16,12 @@ pub PathBuf build(bool force) {
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PathBuf src = root.join("src");
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PathBuf out = root.join(".mist/src");
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build_dir(&root, &src, &src, &out, force);
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// build_dir(&root, &src, &src, &out, force);
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var master = modules::master_package(src.join("main.mist"), out.join("main.rs"));
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master.transpile(&out);
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var elapsed = start.elapsed();
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println!(
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@@ -31,123 +32,91 @@ pub PathBuf build(bool force) {
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root
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}
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void build_dir(Path* root, Path* base_src, Path* current, Path* out, bool force) {
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var entries = match (fs::read_dir(current)) {
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Ok[entries] => entries;
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impl modules::Module {
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void transpile(self*, PathBuf* parent_dir) {
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if (self.path.is_dir()) {
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PathBuf dir = parent_dir.join(&self.name);
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for (child : &self.children) {
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child.transpile(&dir);
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}
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} else {
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if (Some("package.mist") == self.path.file_name().unwrap().to_str()) {
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PathBuf dir = parent_dir.join(&self.name);
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PathBuf output_file = dir.join("mod.rs");
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transpile_file(&self.path, &output_file);
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for (child : &self.children) {
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child.transpile(&dir);
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}
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} else {
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PathBuf output_file = parent_dir.join(&self.name).with_extension("rs");
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transpile_file(&self.path, &output_file);
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for (child : &self.children) {
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child.transpile(parent_dir);
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}
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}
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}
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}
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}
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void transpile_file(PathBuf* path, PathBuf* output_file) {
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String source = match (fs::read_to_string(path)) {
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Ok[s] => s;
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Err[e] => {
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eprintln!(
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"error: failed to read directory {}\n {}",
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current.display(),
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e
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);
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eprintln!("error: failed to read file {}\n {}", path.display(), e);
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process::exit(1);
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}
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};
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for (entry : entries) {
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var entry = match (entry) {
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Ok[entry] => entry;
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Err[e] => {
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eprintln!("error: failed to read directory entry\n {}", e);
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var mut gc = mist_codegen::RustCodegen::new();
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process::exit(1);
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}
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};
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String output = gc.generate(match (mist_parser::parse(&source)) {
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Ok[ast] => ast;
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Err[e] => {
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match (e) {
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error::ParseError::Ast[e] => {
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var start_pos = e.span.start_pos().line_col();
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PathBuf path = entry.path();
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var span = e.span.as_str();
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if (path.is_dir()) {
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build_dir(root, base_src, &path, out, force);
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continue;
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}
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eprintln!(
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"\n{}:{}:{}\n \x1b[31mError\x1b[0m: {}\n\t{}{}\t{}",
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path.as_os_str().display(),
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start_pos.0,
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start_pos.1,
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e.error_message,
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span,
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if span.ends_with("\n") { "" } else { "\n" },
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"^".repeat(span.trim().len()),
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);
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Path* relative = path.strip_prefix(base_src).expect("Failed to strip base src from path");
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process::exit(1);
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}
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if (path.extension().and_then(|var e| e.to_str()) != Some("mist")) {
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PathBuf dest = out.join(relative);
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error::ParseError::PreAst[e] => {
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eprintln!("error: parse failed in {}\n{}", path.display(), e);
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Option<Path*> parent = dest.parent();
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if (parent.is_some()) {
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fs::create_dir_all(parent.unwrap()).expect("failed to create output directory");
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}
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if (!force && should_skip(&path, &dest)) {
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continue
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}
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fs::copy(&path, dest).expect("Failed to copy non-mist file");
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continue;
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}
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PathBuf output_file = out.join(relative).with_extension("rs");
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if (!force && should_skip(&path, &output_file)) {
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continue;
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}
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Option<Path*> parent = output_file.parent();
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if (parent.is_some()) {
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fs::create_dir_all(parent.unwrap()).expect("failed to create output directory");
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}
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String source = match (fs::read_to_string(&path)) {
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Ok[s] => s;
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Err[e] => {
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eprintln!("error: failed to read file {}\n {}", path.display(), e);
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process::exit(1);
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}
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};
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var mut gc = mist_codegen::RustCodegen::new();
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String output = gc.generate(match (mist_parser::parse(&source)) {
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Ok[ast] => ast;
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Err[e] => {
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match (e) {
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error::ParseError::Ast[e] => {
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var start_pos = e.span.start_pos().line_col();
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var span = e.span.as_str();
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eprintln!(
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"\n{}:{}:{}\n \x1b[31mError\x1b[0m: {}\n\t{}{}\t{}",
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path.as_os_str().display(),
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start_pos.0,
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start_pos.1,
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e.error_message,
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span,
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if span.ends_with("\n") { "" } else { "\n" },
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"^".repeat(span.trim().len()),
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);
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process::exit(1);
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}
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error::ParseError::PreAst[e] => {
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eprintln!("error: parse failed in {}\n{}", path.display(), e);
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process::exit(1);
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}
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process::exit(1);
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}
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}
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});
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var res = fs::write(&output_file, output);
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if (res.is_err()) {
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eprintln!(
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"error: failed to write output {}\n {}",
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output_file.display(),
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res.unwrap_err(),
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);
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process::exit(1);
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}
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});
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var res = fs::write(&output_file, output);
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if (res.is_err()) {
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eprintln!(
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"error: failed to write output {}\n {}",
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output_file.display(),
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res.unwrap_err(),
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);
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process::exit(1);
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}
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}
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