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Add Trait, Subsume

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This commit is contained in:
Shunsuke Shibayama 2022-09-15 11:37:12 +09:00
parent 12f22f8bed
commit bc67677ad6
5 changed files with 116 additions and 16 deletions
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18
compiler/erg_compiler/context/initialize/mod.rs
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@ -17,7 +17,7 @@ use Type::*;
use erg_parser::ast::VarName;
use crate::context::initialize::const_func::{class_func, inherit_func, inheritable_func};
use crate::context::initialize::const_func::*;
use crate::context::instantiate::{ConstTemplate, TyVarContext};
use crate::context::{ClassDefType, Context, ContextKind, DefaultInfo, ParamSpec, TraitInstance};
use crate::varinfo::{Mutability, VarInfo, VarKind};
@ -1496,6 +1496,22 @@ impl Context {
);
let inherit = ConstSubr::Builtin(BuiltinConstSubr::new("Inherit", inherit_func, inherit_t));
self.register_builtin_const("Inherit", ValueObj::Subr(inherit));
let trait_t = func(
vec![param_t("Requirement", Type)],
None,
vec![param_t("Impl", Type)],
Trait,
);
let trait_ = ConstSubr::Builtin(BuiltinConstSubr::new("Trait", trait_func, trait_t));
self.register_builtin_const("Trait", ValueObj::Subr(trait_));
let subsume_t = func(
vec![param_t("Super", Trait)],
None,
vec![param_t("Impl", Type), param_t("Additional", Type)],
Trait,
);
let subsume = ConstSubr::Builtin(BuiltinConstSubr::new("Subsume", subsume_func, subsume_t));
self.register_builtin_const("Subsume", ValueObj::Subr(subsume));
// decorators
let inheritable_t = func1(Class, Class);
let inheritable = ConstSubr::Builtin(BuiltinConstSubr::new(