From 88413cd2dc6521fcc3ab66724a492f6141bb0bbf Mon Sep 17 00:00:00 2001
From: Per Lindgren <per.lindgren@ltu.se>
Date: Thu, 17 Sep 2020 00:28:37 +0200
Subject: [PATCH] ast printing
---
examples/call.rs | 4 ++--
examples/ref2.rs | 2 +-
src/ast.rs | 6 ++++--
3 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/examples/call.rs b/examples/call.rs
index 40e42fc..3609097 100644
--- a/examples/call.rs
+++ b/examples/call.rs
@@ -2,6 +2,6 @@ fn f(x: i32, y: i32) -> i32 {
3 + 5 + x + y
}
-fn main() -> i32 {
- f(1, 2)
+fn main() {
+ f(1, 2);
}
diff --git a/examples/ref2.rs b/examples/ref2.rs
index 36b9fde..4c59dfe 100644
--- a/examples/ref2.rs
+++ b/examples/ref2.rs
@@ -1,5 +1,5 @@
fn main() {
let mut a = 1;
let b = &mut a;
- let c = b;
+ let c: &mut i32 = b;
}
diff --git a/src/ast.rs b/src/ast.rs
index c54d740..0b8b2d3 100644
--- a/src/ast.rs
+++ b/src/ast.rs
@@ -233,10 +233,12 @@ impl Stmt {
match self {
// Id mut? (: Type)? (= Expr)?
Stmt::Let(id, m, ot, oe) => {
- write!(fmt, "let {}", id)?;
+ write!(fmt, "let ")?;
if *m {
- write!(fmt, " mut")?;
+ write!(fmt, "mut ")?;
}
+ write!(fmt, "{}", id)?;
+
if let Some(t) = ot {
write!(fmt, ": {}", t)?;
}
--
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