From 028e1a631629c7f5959e522dee80188ea7534d8f Mon Sep 17 00:00:00 2001
From: Melody Horn <melody@boringcactus.com>
Date: Sat, 27 Mar 2021 15:50:39 -0600
Subject: refactor makefile elements into submodules

---
 src/makefile/inference_rules.rs | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 src/makefile/inference_rules.rs

(limited to 'src/makefile/inference_rules.rs')

diff --git a/src/makefile/inference_rules.rs b/src/makefile/inference_rules.rs
new file mode 100644
index 0000000..3d18730
--- /dev/null
+++ b/src/makefile/inference_rules.rs
@@ -0,0 +1,22 @@
+use std::fmt;
+
+use crate::makefile::command_line::CommandLine;
+
+#[derive(PartialEq, Eq, Clone, Debug)]
+pub struct InferenceRule {
+    /// POSIX calls this ".s1" but that's not useful.
+    pub product: String,
+    /// POSIX calls this ".s2" but that's not useful.
+    pub prereq: String,
+    pub commands: Vec<CommandLine>,
+}
+
+impl fmt::Display for InferenceRule {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        writeln!(f, "{}{}:", &self.prereq, &self.product)?;
+        for command in &self.commands {
+            writeln!(f, "\t{}", command)?;
+        }
+        Ok(())
+    }
+}
-- 
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