New DepMap type

1 files changed, 31 insertions, 0 deletions

diff --git a/oryxc/src/depmap.rs b/oryxc/src/depmap.rs
new file mode 100644
index 0000000..60e358e
--- /dev/null
+++ b/oryxc/src/depmap.rs
@@ -0,0 +1,31 @@
+use boxcar;
+use dashmap::DashMap;
+
+use crate::compiler::Job;
+use crate::prelude::*;
+
+pub struct DepMap(DashMap<Dependency, boxcar::Vec<Job>>);
+
+#[derive(Eq, Hash, PartialEq)]
+pub enum Dependency {
+	Symbol(SymbolId),
+}
+
+impl DepMap {
+	pub fn with_capacity(n: usize) -> Self {
+		return Self(DashMap::with_capacity(n));
+	}
+
+	pub fn add(&self, d: Dependency, j: Job) {
+		self.0
+			.entry(d)
+			.and_modify(|v| {
+				v.push(j.clone());
+			})
+			.or_insert_with(|| boxcar::vec![j]);
+	}
+
+	pub fn pop(&self, d: Dependency) -> Option<boxcar::Vec<Job>> {
+		return self.0.remove(&d).map(|(_, v)| v);
+	}
+}