make Size and Align debug-printing a bit more compact

1 files changed, 16 insertions, 2 deletions

diff --git a/compiler/rustc_target/src/abi/mod.rs b/compiler/rustc_target/src/abi/mod.rs
index 0e8fd9cc93f..a2cd3c4c468 100644
--- a/compiler/rustc_target/src/abi/mod.rs
+++ b/compiler/rustc_target/src/abi/mod.rs
@@ -276,12 +276,19 @@ impl ToJson for Endian {
 }
 
 /// Size of a type in bytes.
-#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, Encodable, Decodable)]
+#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Encodable, Decodable)]
 #[derive(HashStable_Generic)]
 pub struct Size {
     raw: u64,
 }
 
+// This is debug-printed a lot in larger structs, don't waste too much space there
+impl fmt::Debug for Size {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "Size({} bytes)", self.bytes())
+    }
+}
+
 impl Size {
     pub const ZERO: Size = Size { raw: 0 };
 
@@ -485,12 +492,19 @@ impl Step for Size {
 }
 
 /// Alignment of a type in bytes (always a power of two).
-#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, Encodable, Decodable)]
+#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Encodable, Decodable)]
 #[derive(HashStable_Generic)]
 pub struct Align {
     pow2: u8,
 }
 
+// This is debug-printed a lot in larger structs, don't waste too much space there
+impl fmt::Debug for Align {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "Align({} bytes)", self.bytes())
+    }
+}
+
 impl Align {
     pub const ONE: Align = Align { pow2: 0 };