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//! HIR (previously known as descriptors) provides a high-level object oriented
//! access to Rust code.
//!
//! The principal difference between HIR and syntax trees is that HIR is bound
//! to a particular crate instance. That is, it has cfg flags and features
//! applied. So, the relation between syntax and HIR is many-to-one.
//!
//! HIR is the public API of the all of the compiler logic above syntax trees.
//! It is written in "OO" style. Each type is self contained (as in, it knows it's
//! parents and full context). It should be "clean code".
//!
//! `hir_*` crates are the implementation of the compiler logic.
//! They are written in "ECS" style, with relatively little abstractions.
//! Many types are not self-contained, and explicitly use local indexes, arenas, etc.
//!
//! `hir` is what insulates the "we don't know how to actually write an incremental compiler"
//! from the ide with completions, hovers, etc. It is a (soft, internal) boundary:
//! https://www.tedinski.com/2018/02/06/system-boundaries.html.
#![recursion_limit = "512"]
mod semantics;
pub mod db;
mod source_analyzer;
pub mod diagnostics;
mod from_id;
mod code_model;
mod attrs;
mod has_source;
pub use crate::{
attrs::{HasAttrs, Namespace},
code_model::{
Access, Adt, AsAssocItem, AssocItem, AssocItemContainer, Callable, CallableKind, Const,
ConstParam, Crate, CrateDependency, DefWithBody, Enum, Field, FieldSource, Function,
GenericDef, HasVisibility, Impl, Label, LifetimeParam, Local, MacroDef, Module, ModuleDef,
ScopeDef, Static, Struct, Trait, Type, TypeAlias, TypeParam, Union, Variant, VariantDef,
},
has_source::HasSource,
semantics::{PathResolution, Semantics, SemanticsScope},
};
pub use hir_def::{
adt::StructKind,
attr::{Attrs, Documentation},
body::scope::ExprScopes,
builtin_type::BuiltinType,
find_path::PrefixKind,
import_map,
item_scope::ItemInNs,
nameres::ModuleSource,
path::{ModPath, PathKind},
type_ref::{Mutability, TypeRef},
visibility::Visibility,
};
pub use hir_expand::{
name::{known, AsName, Name},
ExpandResult, HirFileId, InFile, MacroCallId, MacroCallLoc, /* FIXME */ MacroDefId,
MacroFile, Origin,
};
pub use hir_ty::display::HirDisplay;
// These are negative re-exports: pub using these names is forbidden, they
// should remain private to hir internals.
#[allow(unused)]
use {hir_def::path::Path, hir_expand::hygiene::Hygiene};
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