85 lines
2.3 KiB
Rust
85 lines
2.3 KiB
Rust
// Packages represented on ASG
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//
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// Copyright (C) 2014-2023 Ryan Specialty, LLC.
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//
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// This file is part of TAME.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//! Package object on the ASG.
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use super::{
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Ident, Object, ObjectIndex, ObjectRel, ObjectRelFrom, ObjectRelTy,
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ObjectRelatable, Tpl,
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};
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use crate::{asg::Asg, f::Functor, span::Span};
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use std::fmt::Display;
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#[cfg(doc)]
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use super::ObjectKind;
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#[derive(Debug, PartialEq, Eq)]
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pub struct Pkg(Span);
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impl Pkg {
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pub fn new<S: Into<Span>>(span: S) -> Self {
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Self(span.into())
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}
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pub fn span(&self) -> Span {
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match self {
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Self(span) => *span,
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}
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}
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}
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impl Display for Pkg {
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fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
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write!(f, "package")
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}
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}
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impl Functor<Span> for Pkg {
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fn map(self, f: impl FnOnce(Span) -> Span) -> Self::Target {
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match self {
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Self(span) => Self(f(span)),
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}
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}
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}
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object_rel! {
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/// Packages serve as a root for all identifiers defined therein,
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/// and so an edge to [`Ident`] will never be a cross edge.
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///
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/// Imported [`Ident`]s do not have edges from this package.
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Pkg -> {
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tree Ident,
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// Anonymous templates are used for expansion.
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tree Tpl,
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}
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}
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impl ObjectIndex<Pkg> {
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/// Indicate that the given identifier `oi` is defined in this package.
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pub fn defines(self, asg: &mut Asg, oi: ObjectIndex<Ident>) -> Self {
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self.add_edge_to(asg, oi, None)
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}
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/// Complete the definition of a package.
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pub fn close(self, asg: &mut Asg, span: Span) -> Self {
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self.map_obj(asg, Pkg::fmap(|open| open.merge(span).unwrap_or(open)))
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}
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}
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