forked from Orchid/orchid
100 lines
3.0 KiB
Rust
100 lines
3.0 KiB
Rust
use std::borrow::Cow;
|
|
use std::io;
|
|
use std::ops::Deref;
|
|
use std::sync::Arc;
|
|
|
|
use orchid_api_derive::Coding;
|
|
use orchid_api_traits::{Encode, Request};
|
|
use orchid_base::error::{OrcRes, mk_errv};
|
|
use orchid_base::intern;
|
|
use orchid_base::interner::{Tok, intern};
|
|
use orchid_extension::atom::{AtomMethod, Atomic, MethodSetBuilder, Supports, TypAtom};
|
|
use orchid_extension::atom_owned::{DeserializeCtx, OwnedAtom, OwnedVariant};
|
|
use orchid_extension::conv::TryFromExpr;
|
|
use orchid_extension::expr::Expr;
|
|
use orchid_extension::system::SysCtx;
|
|
|
|
#[derive(Copy, Clone, Coding)]
|
|
pub struct StringGetVal;
|
|
impl Request for StringGetVal {
|
|
type Response = Arc<String>;
|
|
}
|
|
impl AtomMethod for StringGetVal {
|
|
const NAME: &str = "std::string_get_val";
|
|
}
|
|
impl Supports<StringGetVal> for StrAtom {
|
|
fn handle(&self, _: SysCtx, _: StringGetVal) -> <StringGetVal as Request>::Response {
|
|
self.0.clone()
|
|
}
|
|
}
|
|
|
|
#[derive(Clone)]
|
|
pub struct StrAtom(Arc<String>);
|
|
impl Atomic for StrAtom {
|
|
type Variant = OwnedVariant;
|
|
type Data = ();
|
|
fn reg_reqs() -> MethodSetBuilder<Self> { MethodSetBuilder::new().handle::<StringGetVal>() }
|
|
}
|
|
impl StrAtom {
|
|
pub fn new(str: Arc<String>) -> Self { Self(str) }
|
|
pub fn value(&self) -> Arc<String> { self.0.clone() }
|
|
}
|
|
impl Deref for StrAtom {
|
|
type Target = str;
|
|
fn deref(&self) -> &Self::Target { &self.0 }
|
|
}
|
|
impl OwnedAtom for StrAtom {
|
|
type Refs = ();
|
|
fn val(&self) -> Cow<'_, Self::Data> { Cow::Owned(()) }
|
|
fn serialize(&self, _: SysCtx, sink: &mut (impl io::Write + ?Sized)) -> Self::Refs {
|
|
self.deref().encode(sink)
|
|
}
|
|
fn deserialize(mut ctx: impl DeserializeCtx, _: Self::Refs) -> Self {
|
|
Self::new(Arc::new(ctx.read::<String>()))
|
|
}
|
|
}
|
|
|
|
#[derive(Debug, Clone)]
|
|
pub struct IntStrAtom(Tok<String>);
|
|
impl Atomic for IntStrAtom {
|
|
type Variant = OwnedVariant;
|
|
type Data = orchid_api::TStr;
|
|
fn reg_reqs() -> MethodSetBuilder<Self> { MethodSetBuilder::new() }
|
|
}
|
|
impl From<Tok<String>> for IntStrAtom {
|
|
fn from(value: Tok<String>) -> Self { Self(value) }
|
|
}
|
|
impl OwnedAtom for IntStrAtom {
|
|
type Refs = ();
|
|
fn val(&self) -> Cow<'_, Self::Data> { Cow::Owned(self.0.to_api()) }
|
|
fn print(&self, _ctx: SysCtx) -> String { format!("{:?}i", *self.0) }
|
|
fn serialize(&self, _: SysCtx, write: &mut (impl io::Write + ?Sized)) { self.0.encode(write) }
|
|
fn deserialize(ctx: impl DeserializeCtx, _: ()) -> Self { Self(intern(&ctx.decode::<String>())) }
|
|
}
|
|
|
|
#[derive(Clone)]
|
|
pub enum OrcString<'a> {
|
|
Val(TypAtom<'a, StrAtom>),
|
|
Int(TypAtom<'a, IntStrAtom>),
|
|
}
|
|
impl OrcString<'_> {
|
|
pub fn get_string(&self) -> Arc<String> {
|
|
match &self {
|
|
Self::Int(tok) => Tok::from_api(tok.value).arc(),
|
|
Self::Val(atom) => atom.request(StringGetVal),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl TryFromExpr for OrcString<'static> {
|
|
fn try_from_expr(expr: Expr) -> OrcRes<OrcString<'static>> {
|
|
if let Ok(v) = TypAtom::<StrAtom>::try_from_expr(expr.clone()) {
|
|
return Ok(OrcString::Val(v));
|
|
}
|
|
match TypAtom::<IntStrAtom>::try_from_expr(expr) {
|
|
Ok(t) => Ok(OrcString::Int(t)),
|
|
Err(e) => Err(mk_errv(intern!(str: "A string was expected"), "", e.pos_iter())),
|
|
}
|
|
}
|
|
}
|