use erg_common::config::ErgConfig;
use erg_common::dict::Dict;
use erg_common::error::{ErrorDisplay, ErrorKind, MultiErrorDisplay};
use erg_common::traits::BlockKind;
use erg_common::traits::{ExitStatus, New, Runnable, Stream};
use erg_common::Str;
use erg_parser::ast::{VarName, AST};
use erg_parser::build_ast::{ASTBuildable, ASTBuilder as DefaultASTBuilder};
use erg_parser::ParserRunner;
use crate::artifact::{BuildRunnable, Buildable, CompleteArtifact, IncompleteArtifact};
use crate::context::{Context, ContextKind, ContextProvider, ModuleContext};
use crate::effectcheck::SideEffectChecker;
use crate::error::{CompileError, CompileErrors, LowerWarnings};
use crate::link_hir::HIRLinker;
use crate::lower::GenericASTLowerer;
use crate::module::SharedCompilerResource;
use crate::ownercheck::OwnershipChecker;
use crate::ty::VisibilityModifier;
use crate::varinfo::VarInfo;
#[derive(Debug)]
pub struct GenericHIRBuilder<ASTBuilder: ASTBuildable = DefaultASTBuilder> {
pub(crate) lowerer: GenericASTLowerer<ASTBuilder>,
ownership_checker: OwnershipChecker,
}
pub type HIRBuilder = GenericHIRBuilder<DefaultASTBuilder>;
impl<ASTBuilder: ASTBuildable> Default for GenericHIRBuilder<ASTBuilder> {
fn default() -> Self {
GenericHIRBuilder::new(ErgConfig::default())
}
}
impl<A: ASTBuildable> New for GenericHIRBuilder<A> {
fn new(cfg: ErgConfig) -> Self {
GenericHIRBuilder::new_with_cache(
cfg.copy(),
Str::ever("<module>"),
SharedCompilerResource::new(cfg),
)
}
}
impl<ASTBuilder: ASTBuildable> Runnable for GenericHIRBuilder<ASTBuilder> {
type Err = CompileError;
type Errs = CompileErrors;
const NAME: &'static str = "Erg HIR builder";
#[inline]
fn cfg(&self) -> &ErgConfig {
self.lowerer.cfg()
}
#[inline]
fn cfg_mut(&mut self) -> &mut ErgConfig {
self.lowerer.cfg_mut()
}
#[inline]
fn finish(&mut self) {}
fn initialize(&mut self) {
self.lowerer.initialize();
self.ownership_checker = OwnershipChecker::new(self.cfg().copy());
}
fn clear(&mut self) {
self.lowerer.clear();
}
fn exec(&mut self) -> Result<ExitStatus, Self::Errs> {
let mut builder = ASTBuilder::new(self.cfg().copy());
let artifact = builder
.build_ast(self.cfg_mut().input.read())
.map_err(|arti| arti.errors)?;
artifact.warns.write_all_stderr();
let artifact = self
.check(artifact.ast, "exec")
.map_err(|arti| arti.errors)?;
artifact.warns.write_all_stderr();
println!("{}", artifact.object);
Ok(ExitStatus::compile_passed(artifact.warns.len()))
}
fn eval(&mut self, src: String) -> Result<String, Self::Errs> {
let mut builder = ASTBuilder::new(self.cfg().copy());
let artifact = builder.build_ast(src).map_err(|arti| arti.errors)?;
artifact.warns.write_all_stderr();
let artifact = self
.check(artifact.ast, "eval")
.map_err(|arti| arti.errors)?;
artifact.warns.write_all_stderr();
Ok(artifact.object.to_string())
}
fn expect_block(&self, src: &str) -> BlockKind {
let mut parser = ParserRunner::new(self.cfg().clone());
match parser.eval(src.to_string()) {
Err(errs) => {
let kind = errs
.iter()
.filter(|e| e.core().kind == ErrorKind::ExpectNextLine)
.map(|e| {
let msg = e.core().sub_messages.last().unwrap();
msg.get_msg().first().unwrap().to_owned()
})
.next();
if let Some(kind) = kind {
return BlockKind::from(kind.as_str());
}
if errs
.iter()
.any(|err| err.core.main_message.contains("\"\"\""))
{
return BlockKind::MultiLineStr;
}
BlockKind::Error
}
Ok(_) => {
if src.contains("Class") {
return BlockKind::ClassDef;
}
BlockKind::None
}
}
}
}
impl<ASTBuilder: ASTBuildable> Buildable for GenericHIRBuilder<ASTBuilder> {
fn inherit(cfg: ErgConfig, shared: SharedCompilerResource) -> Self {
let mod_name = Str::from(cfg.input.file_stem());
Self::new_with_cache(cfg, mod_name, shared)
}
fn inherit_with_name(cfg: ErgConfig, mod_name: Str, shared: SharedCompilerResource) -> Self {
Self::new_with_cache(cfg, mod_name, shared)
}
fn build(&mut self, src: String, mode: &str) -> Result<CompleteArtifact, IncompleteArtifact> {
self.build(src, mode)
}
fn build_from_ast(
&mut self,
ast: AST,
mode: &str,
) -> Result<CompleteArtifact<crate::hir::HIR>, IncompleteArtifact<crate::hir::HIR>> {
self.check(ast, mode)
}
fn pop_context(&mut self) -> Option<ModuleContext> {
self.pop_mod_ctx()
}
fn get_context(&self) -> Option<&ModuleContext> {
Some(&self.lowerer.module)
}
}
impl<ASTBuilder: ASTBuildable + 'static> BuildRunnable for GenericHIRBuilder<ASTBuilder> {}
impl<ASTBuilder: ASTBuildable> ContextProvider for GenericHIRBuilder<ASTBuilder> {
fn dir(&self) -> Dict<&VarName, &VarInfo> {
self.lowerer.dir()
}
fn get_receiver_ctx(&self, receiver_name: &str) -> Option<&Context> {
self.lowerer.get_receiver_ctx(receiver_name)
}
fn get_var_info(&self, name: &str) -> Option<(&VarName, &VarInfo)> {
self.lowerer.get_var_info(name)
}
}
impl<ASTBuilder: ASTBuildable> GenericHIRBuilder<ASTBuilder> {
pub fn new(cfg: ErgConfig) -> Self {
New::new(cfg)
}
pub fn new_with_cache<S: Into<Str>>(
cfg: ErgConfig,
mod_name: S,
shared: SharedCompilerResource,
) -> Self {
Self {
lowerer: GenericASTLowerer::new_with_cache(cfg.copy(), mod_name, shared),
ownership_checker: OwnershipChecker::new(cfg),
}
}
pub fn new_with_ctx(mut mod_ctx: ModuleContext) -> Self {
mod_ctx.context.grow(
"<module>",
ContextKind::Module,
VisibilityModifier::Private,
None,
);
Self {
ownership_checker: OwnershipChecker::new(mod_ctx.get_top_cfg()),
lowerer: GenericASTLowerer::new_with_ctx(mod_ctx),
}
}
pub fn new_submodule(mut mod_ctx: ModuleContext, name: &str) -> Self {
mod_ctx
.context
.grow(name, ContextKind::Module, VisibilityModifier::Private, None);
Self {
ownership_checker: OwnershipChecker::new(mod_ctx.get_top_cfg()),
lowerer: GenericASTLowerer::new_with_ctx(mod_ctx),
}
}
pub fn check(&mut self, ast: AST, mode: &str) -> Result<CompleteArtifact, IncompleteArtifact> {
let mut artifact = self.lowerer.lower(ast, mode)?;
let ctx = &self.lowerer.get_context().unwrap().context;
let effect_checker = SideEffectChecker::new(self.cfg().clone(), ctx);
let hir = if self.cfg().effect_check {
effect_checker
.check(artifact.object, self.lowerer.module.context.name.clone())
.map_err(|(hir, errs)| {
self.lowerer.module.context.clear_invalid_vars();
IncompleteArtifact::new(Some(hir), errs, artifact.warns.take_all().into())
})?
} else {
artifact.object
};
let hir = if self.cfg().ownership_check {
self.ownership_checker.check(hir).map_err(|(hir, errs)| {
self.lowerer.module.context.clear_invalid_vars();
IncompleteArtifact::new(Some(hir), errs, artifact.warns.take_all().into())
})?
} else {
hir
};
Ok(CompleteArtifact::new(hir, artifact.warns))
}
pub fn build(
&mut self,
src: String,
mode: &str,
) -> Result<CompleteArtifact, IncompleteArtifact> {
let mut ast_builder = ASTBuilder::new(self.cfg().copy());
let artifact = ast_builder
.build_ast(src)
.map_err(|iart| IncompleteArtifact::new(None, iart.errors.into(), iart.warns.into()))?;
self.lowerer
.warns
.extend(LowerWarnings::from(artifact.warns));
self.check(artifact.ast, mode)
}
pub fn build_module(&mut self) -> Result<CompleteArtifact, IncompleteArtifact> {
let src = self.cfg_mut().input.read();
self.build(src, "exec")
}
pub fn build_linked_module(&mut self) -> Result<CompleteArtifact, IncompleteArtifact> {
let artifact = self.build_module()?;
let linker = HIRLinker::new(self.cfg(), self.lowerer.module.context.mod_cache());
let hir = linker.link(artifact.object);
Ok(CompleteArtifact::new(hir, artifact.warns))
}
pub fn pop_mod_ctx(&mut self) -> Option<ModuleContext> {
self.lowerer.pop_mod_ctx()
}
pub fn dir(&mut self) -> Dict<&VarName, &VarInfo> {
ContextProvider::dir(self)
}
pub fn get_receiver_ctx(&self, receiver_name: &str) -> Option<&Context> {
ContextProvider::get_receiver_ctx(self, receiver_name)
}
pub fn get_var_info(&self, name: &str) -> Option<(&VarName, &VarInfo)> {
ContextProvider::get_var_info(self, name)
}
pub fn current_ctx(&self) -> &Context {
&self.lowerer.module.context
}
pub fn clear(&mut self) {
Runnable::clear(self);
}
}