Enum erg_compiler::varinfo::VarKind
source · pub enum VarKind {
Defined(DefId),
Declared,
Parameter {
def_id: DefId,
default: DefaultInfo,
},
Auto,
FixedAuto,
DoesNotExist,
Builtin,
}Variants§
Implementations§
source§impl VarKind
impl VarKind
sourcepub const fn parameter(def_id: DefId, default: DefaultInfo) -> Self
pub const fn parameter(def_id: DefId, default: DefaultInfo) -> Self
Examples found in repository?
context/mod.rs (line 525)
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pub fn with_capacity(
name: Str,
cfg: ErgConfig,
kind: ContextKind,
params: Vec<ParamSpec>,
outer: Option<Context>,
mod_cache: Option<SharedModuleCache>,
py_mod_cache: Option<SharedModuleCache>,
capacity: usize,
level: usize,
) -> Self {
let mut params_ = Vec::new();
for param in params.into_iter() {
let id = DefId(get_hash(&(&name, ¶m)));
if let Some(name) = param.name {
let kind = VarKind::parameter(id, param.default_info);
let muty = Mutability::from(name);
let vi = VarInfo::new(param.t, muty, Private, kind, None, None, None);
params_.push((Some(VarName::new(Token::static_symbol(name))), vi));
} else {
let kind = VarKind::parameter(id, param.default_info);
let muty = Mutability::Immutable;
let vi = VarInfo::new(param.t, muty, Private, kind, None, None, None);
params_.push((None, vi));
}
}
Self {
name,
cfg,
kind,
preds: vec![],
outer: outer.map(Box::new),
super_classes: vec![],
super_traits: vec![],
methods_list: vec![],
const_param_defaults: Dict::default(),
method_to_traits: Dict::default(),
method_to_classes: Dict::default(),
method_impl_patches: Dict::default(),
trait_impls: Dict::default(),
params: params_,
decls: Dict::default(),
future_defined_locals: Dict::default(),
deleted_locals: Dict::default(),
locals: Dict::with_capacity(capacity),
consts: Dict::default(),
mono_types: Dict::default(),
poly_types: Dict::default(),
mod_cache,
py_mod_cache,
tv_cache: None,
patches: Dict::default(),
level,
}
}More examples
context/register.rs (lines 247-250)
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fn assign_param(
&mut self,
sig: &ast::NonDefaultParamSignature,
default_val_exists: bool,
opt_decl_t: Option<&ParamTy>,
) -> TyCheckResult<()> {
let vis = if self.cfg.python_compatible_mode {
Public
} else {
Private
};
match &sig.pat {
// Literal patterns will be desugared to discard patterns
ast::ParamPattern::Lit(_) => unreachable!(),
ast::ParamPattern::Discard(_token) => {
let spec_t = self.instantiate_param_sig_t(
sig,
opt_decl_t,
&mut TyVarCache::new(self.level, self),
Normal,
)?;
let kind = VarKind::parameter(
DefId(get_hash(&(&self.name, "_"))),
DefaultInfo::NonDefault,
);
self.params.push((
Some(VarName::from_static("_")),
VarInfo::new(spec_t, Immutable, vis, kind, None, None, None),
));
Ok(())
}
ast::ParamPattern::VarName(name) => {
if self
.registered_info(name.inspect(), name.is_const())
.is_some()
{
Err(TyCheckErrors::from(TyCheckError::reassign_error(
self.cfg.input.clone(),
line!() as usize,
name.loc(),
self.caused_by(),
name.inspect(),
)))
} else {
// ok, not defined
let mut dummy_tv_cache = TyVarCache::new(self.level, self);
let spec_t =
self.instantiate_param_sig_t(sig, opt_decl_t, &mut dummy_tv_cache, Normal)?;
if &name.inspect()[..] == "self" {
if let Some(self_t) = self.rec_get_self_t() {
self.sub_unify(&spec_t, &self_t, name.loc(), Some(name.inspect()))?;
} else {
log!(err "self_t is None");
}
}
let default = if default_val_exists {
DefaultInfo::WithDefault
} else {
DefaultInfo::NonDefault
};
let kind = VarKind::parameter(DefId(get_hash(&(&self.name, name))), default);
let muty = Mutability::from(&name.inspect()[..]);
self.params.push((
Some(name.clone()),
VarInfo::new(spec_t, muty, vis, kind, None, None, None),
));
Ok(())
}
}
ast::ParamPattern::Ref(name) => {
if self
.registered_info(name.inspect(), name.is_const())
.is_some()
{
Err(TyCheckErrors::from(TyCheckError::reassign_error(
self.cfg.input.clone(),
line!() as usize,
name.loc(),
self.caused_by(),
name.inspect(),
)))
} else {
// ok, not defined
let mut dummy_tv_cache = TyVarCache::new(self.level, self);
let spec_t =
self.instantiate_param_sig_t(sig, opt_decl_t, &mut dummy_tv_cache, Normal)?;
if &name.inspect()[..] == "self" {
if let Some(self_t) = self.rec_get_self_t() {
self.sub_unify(&spec_t, &self_t, name.loc(), Some(name.inspect()))?;
} else {
log!(err "self_t is None");
}
}
let spec_t = ref_(spec_t);
let default = if default_val_exists {
DefaultInfo::WithDefault
} else {
DefaultInfo::NonDefault
};
let kind = VarKind::parameter(DefId(get_hash(&(&self.name, name))), default);
self.params.push((
Some(name.clone()),
VarInfo::new(spec_t, Immutable, vis, kind, None, None, None),
));
Ok(())
}
}
ast::ParamPattern::RefMut(name) => {
if self
.registered_info(name.inspect(), name.is_const())
.is_some()
{
Err(TyCheckErrors::from(TyCheckError::reassign_error(
self.cfg.input.clone(),
line!() as usize,
name.loc(),
self.caused_by(),
name.inspect(),
)))
} else {
// ok, not defined
let mut dummy_tv_cache = TyVarCache::new(self.level, self);
let spec_t =
self.instantiate_param_sig_t(sig, opt_decl_t, &mut dummy_tv_cache, Normal)?;
if &name.inspect()[..] == "self" {
if let Some(self_t) = self.rec_get_self_t() {
self.sub_unify(&spec_t, &self_t, name.loc(), Some(name.inspect()))?;
} else {
log!(err "self_t is None");
}
}
let spec_t = ref_mut(spec_t.clone(), Some(spec_t));
let default = if default_val_exists {
DefaultInfo::WithDefault
} else {
DefaultInfo::NonDefault
};
let kind = VarKind::parameter(DefId(get_hash(&(&self.name, name))), default);
self.params.push((
Some(name.clone()),
VarInfo::new(spec_t, Immutable, vis, kind, None, None, None),
));
Ok(())
}
}
other => {
log!(err "{other}");
unreachable!("{other}")
}
}
}sourcepub const fn has_default(&self) -> bool
pub const fn has_default(&self) -> bool
Examples found in repository?
lower.rs (line 1009)
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fn lower_lambda(&mut self, lambda: ast::Lambda) -> LowerResult<hir::Lambda> {
log!(info "entered {}({lambda})", fn_name!());
let is_procedural = lambda.is_procedural();
let id = get_hash(&lambda.sig);
let name = format!("<lambda_{id}>");
let kind = if is_procedural {
ContextKind::Proc
} else {
ContextKind::Func
};
let tv_cache = self
.ctx
.instantiate_ty_bounds(&lambda.sig.bounds, RegistrationMode::Normal)?;
self.ctx.grow(&name, kind, Private, Some(tv_cache));
let params = self.lower_params(lambda.sig.params).map_err(|errs| {
self.pop_append_errs();
errs
})?;
if let Err(errs) = self.ctx.assign_params(¶ms, None) {
self.errs.extend(errs);
}
if let Err(errs) = self.ctx.preregister(&lambda.body) {
self.errs.extend(errs);
}
let body = self.lower_block(lambda.body).map_err(|e| {
self.pop_append_errs();
e
})?;
let (non_default_params, default_params): (Vec<_>, Vec<_>) = self
.ctx
.params
.iter()
.partition(|(_, v)| !v.kind.has_default());
let non_default_params = non_default_params
.into_iter()
.map(|(name, vi)| {
ParamTy::pos(name.as_ref().map(|n| n.inspect().clone()), vi.t.clone())
})
.collect();
let default_params = default_params
.into_iter()
.map(|(name, vi)| ParamTy::kw(name.as_ref().unwrap().inspect().clone(), vi.t.clone()))
.collect();
self.pop_append_errs();
let t = if is_procedural {
proc(non_default_params, None, default_params, body.t())
} else {
func(non_default_params, None, default_params, body.t())
};
let t = if t.has_qvar() { t.quantify() } else { t };
Ok(hir::Lambda::new(id, params, lambda.op, body, t))
}