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pub mod rir;
use std::{str::FromStr, sync::Arc};
use fxhash::FxHashMap;
use crate::{
index::Idx,
parser::document::Document,
symbol::{DefId, Ident, Symbol, TagId},
tags::Annotation,
tags::{Construct, Tags},
};
use self::rir::{Field, Graph, Node, Path, Type};
pub struct Resolver {
graphs: FxHashMap<DefId, Arc<Graph>>,
nodes: FxHashMap<DefId, Arc<Node>>,
fields: FxHashMap<DefId, Arc<Field>>,
tags: FxHashMap<TagId, Arc<Tags>>,
did_counter: DefId,
tid_counter: TagId,
symbol_table: FxHashMap<Symbol, DefId>,
}
impl Default for Resolver {
fn default() -> Self {
Self {
graphs: Default::default(),
nodes: Default::default(),
fields: Default::default(),
tags: Default::default(),
did_counter: DefId::from_usize(0),
tid_counter: TagId::from_usize(0),
symbol_table: Default::default(),
}
}
}
pub struct ResolveResult {
pub graphs: FxHashMap<DefId, Arc<Graph>>,
pub nodes: FxHashMap<DefId, Arc<Node>>,
pub fields: FxHashMap<DefId, Arc<Field>>,
pub tags: FxHashMap<TagId, Arc<Tags>>,
pub entrys: Vec<DefId>,
}
impl Resolver {
pub fn resolve_document(mut self, document: Document) -> ResolveResult {
let _ = document
.nodes
.iter()
.map(|node| self.lower_node(node))
.collect::<Vec<_>>();
let entrys: Vec<_> = document
.graphs
.iter()
.map(|graph| self.lower_graph(graph))
.collect();
ResolveResult {
graphs: self.graphs,
nodes: self.nodes,
fields: self.fields,
tags: self.tags,
entrys,
}
}
fn lower_node(&mut self, n: &crate::parser::node::Node) -> Arc<Node> {
let name = self.lower_ident(&n.name);
let def_id = self.get_did(&name);
let to_nodes = n
.to_nodes
.iter()
.map(|n| {
let ident = self.lower_ident(n);
self.get_did(&ident)
})
.collect();
let fields = n
.fields
.iter()
.map(|field| self.lower_field(field))
.collect();
let node = Arc::from(Node {
name,
to_nodes,
fields,
});
self.nodes.insert(def_id, node.clone());
node
}
fn get_did(&mut self, name: &Ident) -> DefId {
*self
.symbol_table
.entry(name.clone().sym)
.or_insert(self.did_counter.inc_one())
}
fn lower_graph(&mut self, g: &crate::parser::graph::Graph) -> DefId {
let name = self.lower_ident(&g.name);
let def_id = self.get_did(&name);
let entry_node_name = self.lower_ident(&g.entry_node);
let entry_node_def_id = self.get_did(&entry_node_name);
let graph = Arc::from(Graph {
name,
entry_node: entry_node_def_id,
});
self.graphs.insert(def_id, graph);
def_id
}
fn lower_field(&mut self, f: &crate::parser::field::Field) -> Arc<Field> {
let tag_id = self.tid_counter.inc_one();
let tags = self.extract_tags(&f.annotations);
self.tags.insert(tag_id, tags.into());
let name = self.lower_ident(&f.name);
let def_id = self.get_did(&name);
let ty = self.lower_type(&f.ty);
let field = Arc::from(Field { name, ty, tag_id });
self.fields.insert(def_id, field.clone());
field
}
fn extract_tags(&mut self, annotations: &crate::parser::annotations::Annotations) -> Tags {
let mut tags = Tags::default();
macro_rules! with_tags {
($annotation: tt -> $($key: ty)|+) => {
match $annotation.key.as_str() {
$(<$key>::KEY => {
tags.insert(<$key>::from_str(&$annotation.value).unwrap());
}),+
_ => {},
}
};
}
annotations
.iter()
.for_each(|annotation| with_tags!(annotation -> Construct));
tags
}
fn lower_type(&mut self, ty: &crate::parser::ty::Type) -> Type {
match ty {
crate::parser::ty::Type::String => Type::String,
crate::parser::ty::Type::Void => Type::Void,
crate::parser::ty::Type::Byte => Type::U8,
crate::parser::ty::Type::Bool => Type::Bool,
crate::parser::ty::Type::Binary => Type::Bytes,
crate::parser::ty::Type::I8 => Type::I8,
crate::parser::ty::Type::I16 => Type::I16,
crate::parser::ty::Type::I32 => Type::I32,
crate::parser::ty::Type::I64 => Type::I64,
crate::parser::ty::Type::Double => Type::F64,
crate::parser::ty::Type::List { value } => Type::Vec(Arc::from(self.lower_type(value))),
crate::parser::ty::Type::Set { value } => Type::Set(Arc::from(self.lower_type(value))),
crate::parser::ty::Type::Map { key, value } => Type::Map(
Arc::from(self.lower_type(key)),
Arc::from(self.lower_type(value)),
),
crate::parser::ty::Type::Path(path) => Type::Path(self.lower_path(path)),
}
}
fn lower_ident(&mut self, ident: &crate::parser::ident::Ident) -> Ident {
Ident::from(ident.0.clone())
}
fn lower_path(&mut self, path: &crate::parser::path::Path) -> Path {
Path {
segments: Arc::from_iter(path.segments.iter().map(|i| self.lower_ident(i))),
}
}
}