mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-27 09:14:20 +00:00
Implemented basic enum const eval
This commit is contained in:
parent
f64c95600c
commit
997fc46efa
@ -27,7 +27,7 @@ use crate::{
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macro_id_to_def_id,
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nameres::DefMap,
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path::{ModPath, Path},
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src::HasSource,
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src::{HasChildSource, HasSource},
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AsMacroCall, BlockId, DefWithBodyId, HasModule, LocalModuleId, Lookup, MacroId, ModuleId,
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UnresolvedMacro,
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};
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@ -324,6 +324,13 @@ impl Body {
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let src = s.source(db);
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(src.file_id, s.module(db), src.value.body())
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}
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DefWithBodyId::VariantId(v) => {
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let e = v.parent.lookup(db);
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let src = v.parent.child_source(db);
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let variant = &src.value[v.local_id];
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// TODO(ole): Handle missing exprs (+1 to the prev)
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(src.file_id, e.container, variant.expr())
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}
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};
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let expander = Expander::new(db, file_id, module);
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let (mut body, source_map) = Body::new(db, expander, params, body);
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@ -474,16 +474,25 @@ pub enum DefWithBodyId {
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FunctionId(FunctionId),
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StaticId(StaticId),
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ConstId(ConstId),
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VariantId(EnumVariantId),
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}
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impl_from!(FunctionId, ConstId, StaticId for DefWithBodyId);
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// FIXME: Rename EnumVariantId to VariantId so that the macro above can be used
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impl From<EnumVariantId> for DefWithBodyId {
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fn from(id: EnumVariantId) -> Self {
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DefWithBodyId::VariantId(id)
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}
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}
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impl DefWithBodyId {
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pub fn as_generic_def_id(self) -> Option<GenericDefId> {
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match self {
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DefWithBodyId::FunctionId(f) => Some(f.into()),
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DefWithBodyId::StaticId(_) => None,
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DefWithBodyId::ConstId(c) => Some(c.into()),
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DefWithBodyId::VariantId(c) => Some(c.into()),
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}
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}
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}
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@ -681,6 +690,7 @@ impl HasModule for DefWithBodyId {
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DefWithBodyId::FunctionId(it) => it.lookup(db).module(db),
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DefWithBodyId::StaticId(it) => it.lookup(db).module(db),
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DefWithBodyId::ConstId(it) => it.lookup(db).module(db),
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DefWithBodyId::VariantId(it) => it.parent.lookup(db).container,
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}
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}
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}
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@ -691,6 +701,7 @@ impl DefWithBodyId {
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DefWithBodyId::FunctionId(it) => it.lookup(db).id.value.into(),
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DefWithBodyId::StaticId(it) => it.lookup(db).id.value.into(),
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DefWithBodyId::ConstId(it) => it.lookup(db).id.value.into(),
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DefWithBodyId::VariantId(it) => it.parent.lookup(db).id.value.into(),
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}
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}
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}
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@ -839,6 +839,7 @@ impl HasResolver for DefWithBodyId {
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DefWithBodyId::ConstId(c) => c.resolver(db),
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DefWithBodyId::FunctionId(f) => f.resolver(db),
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DefWithBodyId::StaticId(s) => s.resolver(db),
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DefWithBodyId::VariantId(v) => v.parent.resolver(db),
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}
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}
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}
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@ -11,7 +11,7 @@ use hir_def::{
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path::ModPath,
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resolver::{resolver_for_expr, ResolveValueResult, Resolver, ValueNs},
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type_ref::ConstScalar,
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ConstId, DefWithBodyId,
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ConstId, DefWithBodyId, EnumVariantId,
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};
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use la_arena::{Arena, Idx};
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use stdx::never;
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@ -339,6 +339,7 @@ pub fn eval_const(
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ValueNs::GenericParam(_) => {
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Err(ConstEvalError::NotSupported("const generic without substitution"))
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}
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ValueNs::EnumVariantId(id) => ctx.db.const_eval_variant(id), // TODO(ole): Assuming this is all that has to happen?
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_ => Err(ConstEvalError::NotSupported("path that are not const or local")),
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}
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}
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@ -412,6 +413,14 @@ pub(crate) fn const_eval_recover(
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Err(ConstEvalError::Loop)
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}
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pub(crate) fn const_eval_recover_variant(
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_: &dyn HirDatabase,
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_: &[String],
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_: &EnumVariantId,
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) -> Result<ComputedExpr, ConstEvalError> {
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Err(ConstEvalError::Loop)
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}
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pub(crate) fn const_eval_query(
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db: &dyn HirDatabase,
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const_id: ConstId,
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@ -433,6 +442,26 @@ pub(crate) fn const_eval_query(
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result
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}
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pub(crate) fn const_eval_query_variant(
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db: &dyn HirDatabase,
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variant_id: EnumVariantId,
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) -> Result<ComputedExpr, ConstEvalError> {
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let def = variant_id.into();
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let body = db.body(def);
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let infer = &db.infer(def);
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eval_const(
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body.body_expr,
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&mut ConstEvalCtx {
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db,
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owner: def,
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exprs: &body.exprs,
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pats: &body.pats,
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local_data: HashMap::default(),
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infer,
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},
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)
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}
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pub(crate) fn eval_to_const<'a>(
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expr: Idx<Expr>,
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mode: ParamLoweringMode,
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@ -6,8 +6,9 @@ use std::sync::Arc;
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use arrayvec::ArrayVec;
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use base_db::{impl_intern_key, salsa, CrateId, Upcast};
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use hir_def::{
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db::DefDatabase, expr::ExprId, BlockId, ConstId, ConstParamId, DefWithBodyId, FunctionId,
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GenericDefId, ImplId, LifetimeParamId, LocalFieldId, TypeOrConstParamId, VariantId,
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db::DefDatabase, expr::ExprId, BlockId, ConstId, ConstParamId, DefWithBodyId, EnumVariantId,
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FunctionId, GenericDefId, ImplId, LifetimeParamId, LocalFieldId, Lookup, TypeOrConstParamId,
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VariantId,
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};
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use la_arena::ArenaMap;
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@ -47,6 +48,10 @@ pub trait HirDatabase: DefDatabase + Upcast<dyn DefDatabase> {
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#[salsa::cycle(crate::consteval::const_eval_recover)]
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fn const_eval(&self, def: ConstId) -> Result<ComputedExpr, ConstEvalError>;
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#[salsa::invoke(crate::consteval::const_eval_query_variant)]
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#[salsa::cycle(crate::consteval::const_eval_recover_variant)]
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fn const_eval_variant(&self, def: EnumVariantId) -> Result<ComputedExpr, ConstEvalError>;
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#[salsa::invoke(crate::lower::impl_trait_query)]
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fn impl_trait(&self, def: ImplId) -> Option<Binders<TraitRef>>;
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@ -188,6 +193,13 @@ fn infer_wait(db: &dyn HirDatabase, def: DefWithBodyId) -> Arc<InferenceResult>
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DefWithBodyId::ConstId(it) => {
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db.const_data(it).name.clone().unwrap_or_else(Name::missing).to_string()
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}
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DefWithBodyId::VariantId(it) => {
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let up_db: &dyn DefDatabase = db.upcast();
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let loc = it.parent.lookup(up_db);
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let item_tree = loc.id.item_tree(up_db);
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let konst = &item_tree[loc.id.value];
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konst.name.to_string()
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}
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});
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db.infer_query(def)
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}
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@ -18,7 +18,9 @@ pub fn missing_unsafe(db: &dyn HirDatabase, def: DefWithBodyId) -> Vec<ExprId> {
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let is_unsafe = match def {
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DefWithBodyId::FunctionId(it) => db.function_data(it).has_unsafe_kw(),
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DefWithBodyId::StaticId(_) | DefWithBodyId::ConstId(_) => false,
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DefWithBodyId::StaticId(_) | DefWithBodyId::ConstId(_) | DefWithBodyId::VariantId(_) => {
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false
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}
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};
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if is_unsafe {
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return res;
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@ -67,6 +67,14 @@ pub(crate) fn infer_query(db: &dyn HirDatabase, def: DefWithBodyId) -> Arc<Infer
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DefWithBodyId::ConstId(c) => ctx.collect_const(&db.const_data(c)),
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DefWithBodyId::FunctionId(f) => ctx.collect_fn(f),
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DefWithBodyId::StaticId(s) => ctx.collect_static(&db.static_data(s)),
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DefWithBodyId::VariantId(v) => {
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//let def = AttrDefId::EnumVariantId(v);
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//let attrs = db.attrs(def);
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//let repr = attrs.by_key("repr").attrs().next().unwrap();
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//let ident = repr.single_ident_value().unwrap().text;
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// TODO(ole): Get the real type
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ctx.return_ty = TyBuilder::def_ty(db, v.parent.into()).fill_with_unknown().build()
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}
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}
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ctx.infer_body();
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@ -16,7 +16,7 @@ use base_db::{fixture::WithFixture, FileRange, SourceDatabaseExt};
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use expect_test::Expect;
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use hir_def::{
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body::{Body, BodySourceMap, SyntheticSyntax},
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db::DefDatabase,
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db::{DefDatabase, InternDatabase},
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expr::{ExprId, PatId},
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item_scope::ItemScope,
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nameres::DefMap,
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@ -135,6 +135,10 @@ fn check_impl(ra_fixture: &str, allow_none: bool, only_types: bool, display_sour
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let loc = it.lookup(&db);
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loc.source(&db).value.syntax().text_range().start()
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}
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DefWithBodyId::VariantId(it) => {
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let loc = db.lookup_intern_enum(it.parent);
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loc.source(&db).value.syntax().text_range().start()
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}
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});
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let mut unexpected_type_mismatches = String::new();
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for def in defs {
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@ -388,6 +392,10 @@ fn infer_with_mismatches(content: &str, include_mismatches: bool) -> String {
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let loc = it.lookup(&db);
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loc.source(&db).value.syntax().text_range().start()
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}
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DefWithBodyId::VariantId(it) => {
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let loc = db.lookup_intern_enum(it.parent);
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loc.source(&db).value.syntax().text_range().start()
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}
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});
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for def in defs {
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let (_body, source_map) = db.body_with_source_map(def);
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@ -140,6 +140,7 @@ impl From<DefWithBody> for DefWithBodyId {
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DefWithBody::Function(it) => DefWithBodyId::FunctionId(it.id),
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DefWithBody::Static(it) => DefWithBodyId::StaticId(it.id),
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DefWithBody::Const(it) => DefWithBodyId::ConstId(it.id),
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DefWithBody::Variant(it) => DefWithBodyId::VariantId(it.into()),
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}
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}
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}
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@ -150,6 +151,7 @@ impl From<DefWithBodyId> for DefWithBody {
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DefWithBodyId::FunctionId(it) => DefWithBody::Function(it.into()),
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DefWithBodyId::StaticId(it) => DefWithBody::Static(it.into()),
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DefWithBodyId::ConstId(it) => DefWithBody::Const(it.into()),
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DefWithBodyId::VariantId(it) => DefWithBody::Variant(it.into()),
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}
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}
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}
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@ -172,9 +174,7 @@ impl From<GenericDef> for GenericDefId {
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GenericDef::Trait(it) => GenericDefId::TraitId(it.id),
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GenericDef::TypeAlias(it) => GenericDefId::TypeAliasId(it.id),
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GenericDef::Impl(it) => GenericDefId::ImplId(it.id),
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GenericDef::Variant(it) => {
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GenericDefId::EnumVariantId(EnumVariantId { parent: it.parent.id, local_id: it.id })
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}
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GenericDef::Variant(it) => GenericDefId::EnumVariantId(it.into()),
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GenericDef::Const(it) => GenericDefId::ConstId(it.id),
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}
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}
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@ -188,9 +188,7 @@ impl From<GenericDefId> for GenericDef {
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GenericDefId::TraitId(it) => GenericDef::Trait(it.into()),
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GenericDefId::TypeAliasId(it) => GenericDef::TypeAlias(it.into()),
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GenericDefId::ImplId(it) => GenericDef::Impl(it.into()),
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GenericDefId::EnumVariantId(it) => {
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GenericDef::Variant(Variant { parent: it.parent.into(), id: it.local_id })
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}
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GenericDefId::EnumVariantId(it) => GenericDef::Variant(it.into()),
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GenericDefId::ConstId(it) => GenericDef::Const(it.into()),
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}
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}
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@ -73,7 +73,7 @@ use once_cell::unsync::Lazy;
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use rustc_hash::FxHashSet;
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use stdx::{impl_from, never};
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use syntax::{
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ast::{self, HasAttrs as _, HasDocComments, HasName},
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ast::{self, Expr, HasAttrs as _, HasDocComments, HasName},
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AstNode, AstPtr, SmolStr, SyntaxNodePtr, TextRange, T,
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};
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@ -962,11 +962,16 @@ impl HasVisibility for Enum {
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
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pub struct Variant {
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pub(crate) parent: Enum,
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pub(crate) id: LocalEnumVariantId,
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pub parent: Enum,
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pub id: LocalEnumVariantId,
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}
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impl Variant {
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pub fn value(self, db: &dyn HirDatabase) -> Option<Expr> {
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// TODO(ole): Handle missing exprs (+1 to the prev)
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self.source(db)?.value.expr()
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}
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pub fn module(self, db: &dyn HirDatabase) -> Module {
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self.parent.module(db)
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}
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@ -1129,6 +1134,7 @@ pub enum DefWithBody {
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Function(Function),
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Static(Static),
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Const(Const),
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Variant(Variant),
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}
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impl_from!(Function, Const, Static for DefWithBody);
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@ -1138,6 +1144,7 @@ impl DefWithBody {
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DefWithBody::Const(c) => c.module(db),
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DefWithBody::Function(f) => f.module(db),
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DefWithBody::Static(s) => s.module(db),
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DefWithBody::Variant(v) => v.module(db),
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}
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}
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@ -1146,6 +1153,7 @@ impl DefWithBody {
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DefWithBody::Function(f) => Some(f.name(db)),
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DefWithBody::Static(s) => Some(s.name(db)),
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DefWithBody::Const(c) => c.name(db),
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DefWithBody::Variant(v) => Some(v.name(db)),
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}
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}
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@ -1155,6 +1163,7 @@ impl DefWithBody {
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DefWithBody::Function(it) => it.ret_type(db),
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DefWithBody::Static(it) => it.ty(db),
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DefWithBody::Const(it) => it.ty(db),
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DefWithBody::Variant(it) => it.parent.ty(db),
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}
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}
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@ -1379,6 +1388,7 @@ impl DefWithBody {
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DefWithBody::Function(it) => it.into(),
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DefWithBody::Static(it) => it.into(),
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DefWithBody::Const(it) => it.into(),
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DefWithBody::Variant(it) => it.into(),
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};
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for diag in hir_ty::diagnostics::incorrect_case(db, krate, def.into()) {
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acc.push(diag.into())
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@ -1,6 +1,7 @@
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//! File symbol extraction.
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use base_db::FileRange;
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use hir_def::db::DefDatabase;
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use hir_def::{
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item_tree::ItemTreeNode, src::HasSource, AdtId, AssocItemId, AssocItemLoc, DefWithBodyId,
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HasModule, ImplId, ItemContainerId, Lookup, MacroId, ModuleDefId, ModuleId, TraitId,
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@ -244,6 +245,10 @@ impl<'a> SymbolCollector<'a> {
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DefWithBodyId::ConstId(id) => Some(
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id.lookup(self.db.upcast()).source(self.db.upcast()).value.name()?.text().into(),
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),
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DefWithBodyId::VariantId(id) => Some({
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let up_db: &dyn DefDatabase = self.db.upcast();
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up_db.lookup_intern_enum(id.parent).source(up_db).value.name()?.text().into()
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}),
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}
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}
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|
@ -236,6 +236,7 @@ impl Definition {
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DefWithBody::Function(f) => f.source(db).map(|src| src.syntax().cloned()),
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DefWithBody::Const(c) => c.source(db).map(|src| src.syntax().cloned()),
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DefWithBody::Static(s) => s.source(db).map(|src| src.syntax().cloned()),
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DefWithBody::Variant(v) => v.source(db).map(|src| src.syntax().cloned()),
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};
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return match def {
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Some(def) => SearchScope::file_range(def.as_ref().original_file_range(db)),
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|
@ -2,7 +2,9 @@
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use std::fmt::Display;
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use either::Either;
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use hir::{AsAssocItem, AttributeTemplate, HasAttrs, HasSource, HirDisplay, Semantics, TypeInfo};
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use hir::{
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db::HirDatabase, AsAssocItem, AttributeTemplate, HasAttrs, HasSource, HirDisplay, Semantics, TypeInfo,
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};
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use ide_db::{
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base_db::SourceDatabase,
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defs::Definition,
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@ -346,7 +348,14 @@ pub(super) fn definition(
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Definition::Module(it) => label_and_docs(db, it),
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Definition::Function(it) => label_and_docs(db, it),
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Definition::Adt(it) => label_and_docs(db, it),
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Definition::Variant(it) => label_and_docs(db, it),
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Definition::Variant(it) => label_value_and_docs(db, it, |&it| {
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let hir_db: &dyn HirDatabase = db;
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let body = hir_db.const_eval_variant(it.into());
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match body {
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Ok(x) => Some(format!("{}", x)),
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Err(_) => it.value(db).map(|s| format!("{}", s)),
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}
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}),
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Definition::Const(it) => label_value_and_docs(db, it, |it| {
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let body = it.eval(db);
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match body {
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|
@ -3527,6 +3527,86 @@ impl<const LEN: usize> Foo<LEN$0> {}
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);
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}
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#[test]
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fn hover_const_eval_variant() {
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// show hex for <10
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check(
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r#"
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#[repr(u8)]
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enum E {
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/// This is a doc
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A$0 = 1 << 3,
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}
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"#,
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expect![[r#"
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*A*
|
||||
|
||||
```rust
|
||||
test::E
|
||||
```
|
||||
|
||||
```rust
|
||||
A = 8
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
This is a doc
|
||||
"#]],
|
||||
);
|
||||
// show hex for >10
|
||||
check(
|
||||
r#"
|
||||
#[repr(u8)]
|
||||
enum E {
|
||||
/// This is a doc
|
||||
A$0 = (1 << 3) + (1 << 2),
|
||||
}
|
||||
"#,
|
||||
expect![[r#"
|
||||
*A*
|
||||
|
||||
```rust
|
||||
test::E
|
||||
```
|
||||
|
||||
```rust
|
||||
A = 12 (0xC)
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
This is a doc
|
||||
"#]],
|
||||
);
|
||||
// enums in const eval
|
||||
check(
|
||||
r#"
|
||||
#[repr(u8)]
|
||||
enum E {
|
||||
A = 1,
|
||||
/// This is a doc
|
||||
B$0 = E::A + 1,
|
||||
}
|
||||
"#,
|
||||
expect![[r#"
|
||||
*B*
|
||||
|
||||
```rust
|
||||
test::E
|
||||
```
|
||||
|
||||
```rust
|
||||
B = 2
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
This is a doc
|
||||
"#]],
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn hover_const_eval() {
|
||||
// show hex for <10
|
||||
@ -3820,6 +3900,35 @@ fn foo() {
|
||||
|
||||
---
|
||||
|
||||
This is a doc
|
||||
"#]],
|
||||
);
|
||||
check(
|
||||
r#"
|
||||
enum E {
|
||||
/// This is a doc
|
||||
A = 3,
|
||||
}
|
||||
fn foo(e: E) {
|
||||
match e {
|
||||
E::A$0 => (),
|
||||
_ => ()
|
||||
}
|
||||
}
|
||||
"#,
|
||||
expect![[r#"
|
||||
*A*
|
||||
|
||||
```rust
|
||||
test::E
|
||||
```
|
||||
|
||||
```rust
|
||||
A = 3
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
This is a doc
|
||||
"#]],
|
||||
);
|
||||
|
Loading…
Reference in New Issue
Block a user