move docs under code model

crates/ra_hir/src/docs.rs

@@ -1,96 +0,0 @@
-use std::sync::Arc;
-
-use ra_syntax::ast;
-
-use crate::{
-    HirDatabase, DefDatabase, AstDatabase, HasSource,
-    Module, StructField, Struct, Enum, EnumVariant, Static, Const, Function, Union, Trait, TypeAlias, FieldSource, MacroDef,
-};
-
-#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
-pub enum DocDef {
-    Module(Module),
-    StructField(StructField),
-    Struct(Struct),
-    Enum(Enum),
-    EnumVariant(EnumVariant),
-    Static(Static),
-    Const(Const),
-    Function(Function),
-    Union(Union),
-    Trait(Trait),
-    TypeAlias(TypeAlias),
-    MacroDef(MacroDef),
-}
-
-impl_froms!(
-    DocDef: Module,
-    StructField,
-    Struct,
-    Enum,
-    EnumVariant,
-    Static,
-    Const,
-    Function,
-    Union,
-    Trait,
-    TypeAlias,
-    MacroDef
-);
-
-/// Holds documentation
-#[derive(Debug, Clone, PartialEq, Eq)]
-pub struct Documentation(Arc<str>);
-
-impl Documentation {
-    fn new(s: &str) -> Documentation {
-        Documentation(s.into())
-    }
-
-    pub fn as_str(&self) -> &str {
-        &*self.0
-    }
-}
-
-impl Into<String> for Documentation {
-    fn into(self) -> String {
-        self.as_str().to_owned()
-    }
-}
-
-pub trait Docs {
-    fn docs(&self, db: &impl HirDatabase) -> Option<Documentation>;
-}
-
-pub(crate) fn docs_from_ast(node: &impl ast::DocCommentsOwner) -> Option<Documentation> {
-    node.doc_comment_text().map(|it| Documentation::new(&it))
-}
-
-pub(crate) fn documentation_query(
-    db: &(impl DefDatabase + AstDatabase),
-    def: DocDef,
-) -> Option<Documentation> {
-    match def {
-        DocDef::Module(it) => docs_from_ast(&*it.declaration_source(db)?.ast),
-        DocDef::StructField(it) => match it.source(db).ast {
-            FieldSource::Named(named) => docs_from_ast(&*named),
-            FieldSource::Pos(..) => return None,
-        },
-        DocDef::Struct(it) => docs_from_ast(&*it.source(db).ast),
-        DocDef::Enum(it) => docs_from_ast(&*it.source(db).ast),
-        DocDef::EnumVariant(it) => docs_from_ast(&*it.source(db).ast),
-        DocDef::Static(it) => docs_from_ast(&*it.source(db).ast),
-        DocDef::Const(it) => docs_from_ast(&*it.source(db).ast),
-        DocDef::Function(it) => docs_from_ast(&*it.source(db).ast),
-        DocDef::Union(it) => docs_from_ast(&*it.source(db).ast),
-        DocDef::Trait(it) => docs_from_ast(&*it.source(db).ast),
-        DocDef::TypeAlias(it) => docs_from_ast(&*it.source(db).ast),
-        DocDef::MacroDef(it) => docs_from_ast(&*it.source(db).ast),
-    }
-}
-
-impl<T: Into<DocDef> + Copy> Docs for T {
-    fn docs(&self, db: &impl HirDatabase) -> Option<Documentation> {
-        db.documentation((*self).into())
-    }
-}