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Add python shadowing mode

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This commit is contained in:
Shunsuke Shibayama 2022-12-20 23:21:36 +09:00
parent a6da05147c
commit 351ac57188
2 changed files with 11 additions and 5 deletions
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12
compiler/erg_compiler/lower.rs
View file

@ -1093,22 +1093,24 @@ impl ASTLowerer {
Ok(block) => {
let found_body_t = block.ref_t();
let outer = self.ctx.outer.as_ref().unwrap();
let opt_expect_body_t = sig
let opt_expect_body_vi = sig
.inspect()
.and_then(|name| outer.get_current_scope_var(name).map(|vi| vi.t.clone()));
.and_then(|name| outer.get_current_scope_var(name));
let ident = match &sig.pat {
ast::VarPattern::Ident(ident) => ident,
ast::VarPattern::Discard(_) => ast::Identifier::UBAR,
_ => unreachable!(),
};
if let Some(expect_body_t) = opt_expect_body_t {
if let Some(expect_body_vi) = opt_expect_body_vi {
let python_shadowing =
self.cfg.python_compatible_mode && expect_body_vi.kind.is_defined();
// TODO: expect_body_t is smaller for constants
// TODO: 定数の場合、expect_body_tのほうが小さくなってしまう
if !sig.is_const() {
if !sig.is_const() && !python_shadowing {
if let Err(e) = self.var_result_t_check(
sig.loc(),
ident.inspect(),
&expect_body_t,
&expect_body_vi.t,
found_body_t,
) {
self.errs.push(e);

4
compiler/erg_compiler/varinfo.rs
View file

@ -63,6 +63,10 @@ impl VarKind {
pub const fn is_parameter(&self) -> bool {
matches!(self, Self::Parameter { .. })
}
pub const fn is_defined(&self) -> bool {
matches!(self, Self::Defined(_))
}
}
/// Has information about the type, variability, visibility, and where the variable was defined (or declared, generated)