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use std::fs;
use std::path::Path;
use log::{debug, info};
use pathdiff::diff_paths;
use crate::commands::ensure_tools_available;
pub use crate::config::RawOpts as Opts;
use crate::ir::*;
use crate::others::*;
use crate::utils::*;
mod commands;
mod config;
mod error;
mod generator;
mod ir;
mod markers;
mod others;
mod parser;
mod source_graph;
mod transformer;
mod utils;
use error::*;
pub fn frb_codegen(raw_opts: Opts) -> anyhow::Result<()> {
ensure_tools_available()?;
let config = config::parse(raw_opts);
info!("Picked config: {:?}", &config);
let rust_output_dir = Path::new(&config.rust_output_path).parent().unwrap();
let dart_output_dir = Path::new(&config.dart_output_path).parent().unwrap();
info!("Phase: Parse source code to AST");
let source_rust_content = fs::read_to_string(&config.rust_input_path)?;
let file_ast = syn::parse_file(&source_rust_content)?;
info!("Phase: Parse AST to IR");
let raw_ir_file = parser::parse(&source_rust_content, file_ast, &config.manifest_path);
debug!("parsed functions: {:?}", &raw_ir_file);
info!("Phase: Transform IR");
let ir_file = transformer::transform(raw_ir_file);
debug!("transformed functions: {:?}", &ir_file);
info!("Phase: Generate Rust code");
let generated_rust = generator::rust::generate(
&ir_file,
&mod_from_rust_path(&config.rust_input_path, &config.rust_crate_dir),
);
fs::create_dir_all(&rust_output_dir)?;
fs::write(&config.rust_output_path, generated_rust.code)?;
info!("Phase: Generate Dart code");
let (generated_dart, needs_freezed) = generator::dart::generate(
&ir_file,
&config.dart_api_class_name(),
&config.dart_api_impl_class_name(),
&config.dart_wire_class_name(),
config
.dart_output_path_name()
.ok_or_else(|| Error::str("Invalid dart_output_path_name"))?,
);
info!("Phase: Other things");
commands::format_rust(&config.rust_output_path)?;
if !config.skip_add_mod_to_lib {
others::try_add_mod_to_lib(&config.rust_crate_dir, &config.rust_output_path);
}
let c_struct_names = ir_file
.distinct_types(true, true)
.iter()
.filter_map(|ty| {
if let IrType::StructRef(_) = ty {
Some(ty.rust_wire_type())
} else {
None
}
})
.collect();
let temp_dart_wire_file = tempfile::NamedTempFile::new()?;
let temp_bindgen_c_output_file = tempfile::Builder::new().suffix(".h").tempfile()?;
with_changed_file(
&config.rust_output_path,
DUMMY_WIRE_CODE_FOR_BINDGEN,
|| {
commands::bindgen_rust_to_dart(
&config.rust_crate_dir,
temp_bindgen_c_output_file
.path()
.as_os_str()
.to_str()
.unwrap(),
temp_dart_wire_file.path().as_os_str().to_str().unwrap(),
&config.dart_wire_class_name(),
c_struct_names,
&config.llvm_path[..],
&config.llvm_compiler_opts,
)
},
)?;
let effective_func_names = [
generated_rust.extern_func_names,
EXTRA_EXTERN_FUNC_NAMES.to_vec(),
]
.concat();
let c_dummy_code = generator::c::generate_dummy(&effective_func_names);
for output in &config.c_output_path {
fs::create_dir_all(Path::new(output).parent().unwrap())?;
fs::write(
&output,
fs::read_to_string(&temp_bindgen_c_output_file)? + "\n" + &c_dummy_code,
)?;
}
fs::create_dir_all(&dart_output_dir)?;
let generated_dart_wire_code_raw = fs::read_to_string(temp_dart_wire_file)?;
let generated_dart_wire = extract_dart_wire_content(&modify_dart_wire_content(
&generated_dart_wire_code_raw,
&config.dart_wire_class_name(),
));
sanity_check(&generated_dart_wire.body, &config.dart_wire_class_name())?;
let generated_dart_decl_all = generated_dart.decl_code;
let generated_dart_impl_all = &generated_dart.impl_code + &generated_dart_wire;
if let Some(dart_decl_output_path) = &config.dart_decl_output_path {
let impl_import_decl = DartBasicCode {
import: format!(
"import \"{}\";",
diff_paths(dart_decl_output_path, dart_output_dir)
.unwrap()
.to_str()
.unwrap()
),
part: String::new(),
body: String::new(),
};
fs::write(
&dart_decl_output_path,
(&generated_dart.file_prelude + &generated_dart_decl_all).to_text(),
)?;
fs::write(
&config.dart_output_path,
(&generated_dart.file_prelude + &impl_import_decl + &generated_dart_impl_all).to_text(),
)?;
} else {
fs::write(
&config.dart_output_path,
(&generated_dart.file_prelude + &generated_dart_decl_all + &generated_dart_impl_all)
.to_text(),
)?;
}
let dart_root = &config.dart_root;
if needs_freezed && config.build_runner {
let dart_root = dart_root.as_ref().ok_or_else(|| {
Error::str(
"build_runner configured to run, but Dart root could not be inferred.
Please specify --dart-root, or disable build_runner with --no-build-runner.",
)
})?;
commands::build_runner(dart_root)?;
commands::format_dart(
&config
.dart_output_freezed_path()
.ok_or_else(|| Error::str("Invalid freezed file path"))?,
config.dart_format_line_length,
)?;
}
commands::format_dart(&config.dart_output_path, config.dart_format_line_length)?;
if let Some(dart_decl_output_path) = &config.dart_decl_output_path {
commands::format_dart(dart_decl_output_path, config.dart_format_line_length)?;
}
info!("Success!");
Ok(())
}
