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use erg_common::config::ErgConfig;
use erg_common::error::{ErrorCore, ErrorKind, MultiErrorDisplay};
use erg_common::style::colors::{BLUE, GREEN, RED, YELLOW};
use erg_common::style::RESET;
use erg_common::traits::{Runnable, Stream};
use erg_common::Str;
use erg_compiler::artifact::{BuildRunnable, Buildable, CompleteArtifact, IncompleteArtifact};
use erg_compiler::context::ModuleContext;
use erg_compiler::erg_parser::ast::AST;
use erg_compiler::error::{CompileError, CompileErrors};
use erg_compiler::lower::ASTLowerer;
use erg_compiler::module::SharedCompilerResource;
use py2erg::dump_decl_er;
use py2erg::{CheckStatus, ShadowingMode};
use rustpython_parser::parser;
use crate::handle_err;
#[derive(Debug, Default)]
pub struct PythonAnalyzer {
pub cfg: ErgConfig,
checker: ASTLowerer,
}
impl Runnable for PythonAnalyzer {
type Err = CompileError;
type Errs = CompileErrors;
const NAME: &'static str = "Python Analyzer";
fn new(cfg: ErgConfig) -> Self {
let checker = ASTLowerer::new(cfg.clone());
Self { checker, cfg }
}
#[inline]
fn cfg(&self) -> &ErgConfig {
&self.cfg
}
#[inline]
fn cfg_mut(&mut self) -> &mut ErgConfig {
&mut self.cfg
}
fn finish(&mut self) {
self.checker.finish();
}
fn initialize(&mut self) {
self.checker.initialize();
}
fn clear(&mut self) {
self.checker.clear();
}
fn eval(&mut self, src: String) -> Result<String, Self::Errs> {
self.checker.eval(src)
}
fn exec(&mut self) -> Result<i32, Self::Errs> {
self.checker.exec()
}
}
impl Buildable for PythonAnalyzer {
fn inherit(cfg: ErgConfig, shared: SharedCompilerResource) -> Self {
let mod_name = Str::rc(&cfg.input.file_stem());
Self {
cfg: cfg.copy(),
checker: ASTLowerer::new_with_cache(cfg, mod_name, shared),
}
}
fn build(&mut self, code: String, mode: &str) -> Result<CompleteArtifact, IncompleteArtifact> {
self.analyze(code, mode)
}
fn pop_context(&mut self) -> Option<ModuleContext> {
self.checker.pop_mod_ctx()
}
fn get_context(&self) -> Option<&ModuleContext> {
Some(self.checker.get_mod_ctx())
}
}
impl BuildRunnable for PythonAnalyzer {}
impl PythonAnalyzer {
pub fn new(cfg: ErgConfig) -> Self {
Runnable::new(cfg)
}
pub fn analyze(
&mut self,
py_code: String,
mode: &str,
) -> Result<CompleteArtifact, IncompleteArtifact> {
let filename = self.cfg.input.filename();
let py_program = parser::parse_program(&py_code).map_err(|err| {
let core = ErrorCore::new(
vec![],
err.to_string(),
0,
ErrorKind::SyntaxError,
erg_common::error::Location::Line(err.location.row() as u32),
);
let err = CompileError::new(core, self.cfg.input.clone(), "".into());
IncompleteArtifact::new(None, CompileErrors::from(err), CompileErrors::empty())
})?;
let shadowing = if cfg!(feature = "debug") {
ShadowingMode::Visible
} else {
ShadowingMode::Invisible
};
let converter = py2erg::ASTConverter::new(self.cfg.copy(), shadowing);
let IncompleteArtifact{ object: Some(erg_module), mut errors, mut warns } = converter.convert_program(py_program) else { unreachable!() };
let erg_ast = AST::new(erg_common::Str::rc(&filename), erg_module);
erg_common::log!("AST:\n{erg_ast}");
match self.checker.lower(erg_ast, mode) {
Ok(mut artifact) => {
artifact.warns.extend(warns);
artifact.warns =
handle_err::filter_errors(self.checker.get_mod_ctx(), artifact.warns);
if errors.is_empty() {
Ok(artifact)
} else {
Err(IncompleteArtifact::new(
Some(artifact.object),
errors,
artifact.warns,
))
}
}
Err(iart) => {
errors.extend(iart.errors);
let errors = handle_err::filter_errors(self.checker.get_mod_ctx(), errors);
warns.extend(iart.warns);
let warns = handle_err::filter_errors(self.checker.get_mod_ctx(), warns);
Err(IncompleteArtifact::new(iart.object, errors, warns))
}
}
}
pub fn run(&mut self) {
let py_code = self.cfg.input.read();
let filename = self.cfg.input.unescaped_filename();
println!("{BLUE}Start checking{RESET}: {filename}");
match self.analyze(py_code, "exec") {
Ok(artifact) => {
if !artifact.warns.is_empty() {
println!(
"{YELLOW}Found {} warnings{RESET}: {}",
artifact.warns.len(),
self.cfg.input.filename()
);
artifact.warns.fmt_all_stderr();
}
println!(
"{GREEN}All checks OK{RESET}: {}",
self.cfg.input.unescaped_filename()
);
if self.cfg.output_dir.is_some() {
dump_decl_er(
self.cfg.input.clone(),
artifact.object,
CheckStatus::Succeed,
);
println!("A declaration file has been generated to __pycache__ directory.");
}
std::process::exit(0);
}
Err(artifact) => {
if !artifact.warns.is_empty() {
println!(
"{YELLOW}Found {} warnings{RESET}: {}",
artifact.warns.len(),
self.cfg.input.filename()
);
artifact.warns.fmt_all_stderr();
}
let code = if artifact.errors.is_empty() {
println!(
"{GREEN}All checks OK{RESET}: {}",
self.cfg.input.unescaped_filename()
);
0
} else {
println!(
"{RED}Found {} errors{RESET}: {}",
artifact.errors.len(),
self.cfg.input.filename()
);
artifact.errors.fmt_all_stderr();
1
};
if self.cfg.output_dir.is_some() {
dump_decl_er(
self.cfg.input.clone(),
artifact.object.unwrap(),
CheckStatus::Failed,
);
println!("A declaration file has been generated to __pycache__ directory.");
}
std::process::exit(code);
}
}
}
}