add back Scalar::null_ptr

RalfJung · RalfJung · commit 5bb1afc7e701 · 2020-04-23T20:13:53.000+02:00
diff --git a/src/librustc_middle/mir/interpret/value.rs b/src/librustc_middle/mir/interpret/value.rs
@@ -188,6 +188,11 @@ impl<'tcx, Tag> Scalar<Tag> {
         }
     }
 
+    #[inline]
+    pub fn null_ptr(cx: &impl HasDataLayout) -> Self {
+        Scalar::Raw { data: 0, size: cx.data_layout().pointer_size.bytes() as u8 }
+    }
+
     #[inline]
     pub fn zst() -> Self {
         Scalar::Raw { data: 0, size: 0 }

Original file line number	Diff line number	Diff line change
`@@ -188,6 +188,11 @@ impl<'tcx, Tag> Scalar<Tag> {`
`188`	`188`	`}`
`189`	`189`	`}`
`190`	`190`
	`191`	`+ #[inline]`
	`192`	`+ pub fn null_ptr(cx: &impl HasDataLayout) -> Self {`
	`193`	`+ Scalar::Raw { data: 0, size: cx.data_layout().pointer_size.bytes() as u8 }`
	`194`	`+ }`
	`195`	`+`
`191`	`196`	`#[inline]`
`192`	`197`	`pub fn zst() -> Self {`
`193`	`198`	`Scalar::Raw { data: 0, size: 0 }`