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Add hir::Local

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Aleksey Kladov 2019-11-10 00:32:00 +03:00
parent 5ac4ffbc12
commit 8b7f853cc1
14 changed files with 171 additions and 173 deletions
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30
crates/ra_hir/src/from_source.rs
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@ -2,13 +2,17 @@
use hir_def::{StructId, StructOrUnionId, UnionId};
use hir_expand::name::AsName;
use ra_syntax::ast::{self, AstNode, NameOwner};
use ra_syntax::{
ast::{self, AstNode, NameOwner},
match_ast,
};
use crate::{
db::{AstDatabase, DefDatabase, HirDatabase},
ids::{AstItemDef, LocationCtx},
AstId, Const, Crate, Enum, EnumVariant, FieldSource, Function, HasSource, ImplBlock, Module,
ModuleSource, Source, Static, Struct, StructField, Trait, TypeAlias, Union, VariantDef,
AstId, Const, Crate, DefWithBody, Enum, EnumVariant, FieldSource, Function, HasSource,
ImplBlock, Local, Module, ModuleSource, Source, Static, Struct, StructField, Trait, TypeAlias,
Union, VariantDef,
};
pub trait FromSource: Sized {
@ -126,6 +130,26 @@ impl FromSource for StructField {
}
}
impl Local {
pub fn from_source(db: &impl HirDatabase, src: Source<ast::BindPat>) -> Option<Self> {
let file_id = src.file_id;
let parent: DefWithBody = src.ast.syntax().ancestors().find_map(|it| {
let res = match_ast! {
match it {
ast::ConstDef(ast) => { Const::from_source(db, Source { ast, file_id})?.into() },
ast::StaticDef(ast) => { Static::from_source(db, Source { ast, file_id})?.into() },
ast::FnDef(ast) => { Function::from_source(db, Source { ast, file_id})?.into() },
_ => return None,
}
};
Some(res)
})?;
let (_body, source_map) = db.body_with_source_map(parent);
let pat_id = source_map.node_pat(&src.ast.into())?;
Some(Local { parent, pat_id })
}
}
impl Module {
pub fn from_declaration(db: &impl HirDatabase, src: Source<ast::Module>) -> Option<Self> {
let src_parent = Source {