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Update: Change Vec to Set

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This commit is contained in:
GreasySlug 2022-10-05 09:12:45 +09:00
parent 7225aac2a4
commit ff9c10cfee
1 changed files with 18 additions and 3 deletions
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21
compiler/erg_compiler/lower.rs
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@ -26,7 +26,7 @@ use erg_type::{HasType, ParamTy, Type};
use crate::context::instantiate::TyVarContext;
use crate::context::{ClassDefType, Context, ContextKind, RegistrationMode};
use crate::error::{
CompileError, CompileErrors, LowerError, LowerErrors, LowerResult, LowerWarnings,
CompileError, CompileErrors, LowerError, LowerErrors, LowerResult, LowerWarning, LowerWarnings,
SingleLowerResult,
};
use crate::hir;
@ -340,8 +340,8 @@ impl ASTLowerer {
fn lower_normal_set(&mut self, set: ast::NormalSet) -> LowerResult<hir::NormalSet> {
log!(info "entered {}({set})", fn_name!());
let (elems, _) = set.elems.into_iters();
let mut new_set = vec![];
let mut union = Type::Never;
let mut new_set = Set::new();
for elem in elems {
let elem = self.lower_expr(elem.expr)?;
union = self.ctx.union(&union, elem.ref_t());
@ -368,13 +368,28 @@ impl ASTLowerer {
),
)));
}
new_set.push(elem);
if !new_set.insert(elem.clone()) {
self.warns.push(LowerWarning::syntax_error(
self.cfg.input.clone(),
line!() as usize,
elem.loc(),
AtomicStr::arc(&self.ctx.name[..]),
switch_lang!(
"japanese" => "要素が重複しています",
"simplified_chinese" => "TODO",
"traditional_chinese" => "TODO",
"english" => "Duplicate elements",
),
None,
));
}
}
let elem_t = if union == Type::Never {
free_var(self.ctx.level, Constraint::new_type_of(Type::Type))
} else {
union
};
let new_set: Vec<hir::Expr> = new_set.into_iter().collect();
Ok(hir::NormalSet::new(
set.l_brace,
set.r_brace,