migrate layout_test.rs to translateable diagnostics

compiler/rustc_error_messages/locales/en-US/passes.ftl

@@ -399,3 +399,24 @@ passes_duplicate_diagnostic_item_in_crate =
 passes_diagnostic_item_first_defined =
     the diagnostic item is first defined here
     .note = the diagnostic item is first defined in crate `{$orig_crate_name}`.
+
+passes_abi =
+    abi: {$abi}
+
+passes_align =
+    align: {$align}
+
+passes_size =
+    size: {$size}
+
+passes_homogeneous_aggregate =
+    homogeneous_aggregate: {$homogeneous_aggregate}
+
+passes_layout_of =
+    layout_of({$normalized_ty}) = {$ty_layout}
+
+passes_unrecognized_field =
+    unrecognized field name `{$name}`
+
+passes_layout =
+    layout error: {$layout_error}

compiler/rustc_passes/src/errors.rs

@@ -775,3 +775,60 @@ pub struct DuplicateDiagnosticItemInCrate {
     pub crate_name: Symbol,
     pub name: Symbol,
 }
+
+#[derive(Diagnostic)]
+#[diag(passes::abi)]
+pub struct Abi {
+    #[primary_span]
+    pub span: Span,
+    pub abi: String,
+}
+
+#[derive(Diagnostic)]
+#[diag(passes::align)]
+pub struct Align {
+    #[primary_span]
+    pub span: Span,
+    pub align: String,
+}
+
+#[derive(Diagnostic)]
+#[diag(passes::size)]
+pub struct Size {
+    #[primary_span]
+    pub span: Span,
+    pub size: String,
+}
+
+#[derive(Diagnostic)]
+#[diag(passes::homogeneous_aggregate)]
+pub struct HomogeneousAggregate {
+    #[primary_span]
+    pub span: Span,
+    pub homogeneous_aggregate: String,
+}
+
+#[derive(Diagnostic)]
+#[diag(passes::layout_of)]
+pub struct LayoutOf {
+    #[primary_span]
+    pub span: Span,
+    pub normalized_ty: String,
+    pub ty_layout: String,
+}
+
+#[derive(Diagnostic)]
+#[diag(passes::unrecognized_field)]
+pub struct UnrecognizedField {
+    #[primary_span]
+    pub span: Span,
+    pub name: Symbol,
+}
+
+#[derive(Diagnostic)]
+#[diag(passes::layout)]
+pub struct Layout {
+    #[primary_span]
+    pub span: Span,
+    pub layout_error: String,
+}

compiler/rustc_passes/src/layout_test.rs

@@ -7,6 +7,8 @@ use rustc_span::symbol::sym;
 use rustc_span::Span;
 use rustc_target::abi::{HasDataLayout, TargetDataLayout};
 
+use crate::errors::{Abi, Align, HomogeneousAggregate, Layout, LayoutOf, Size, UnrecognizedField};
+
 pub fn test_layout(tcx: TyCtxt<'_>) {
     if tcx.features().rustc_attrs {
         // if the `rustc_attrs` feature is not enabled, don't bother testing layout
@@ -35,62 +37,64 @@ fn dump_layout_of<'tcx>(tcx: TyCtxt<'tcx>, item_def_id: LocalDefId, attr: &Attri
             for meta_item in meta_items {
                 match meta_item.name_or_empty() {
                     sym::abi => {
-                        tcx.sess.span_err(
-                            tcx.def_span(item_def_id.to_def_id()),
-                            &format!("abi: {:?}", ty_layout.abi),
-                        );
+                        tcx.sess.emit_err(Abi {
+                            span: tcx.def_span(item_def_id.to_def_id()),
+                            abi: format!("{:?}", ty_layout.abi),
+                        });
                     }
 
                     sym::align => {
-                        tcx.sess.span_err(
-                            tcx.def_span(item_def_id.to_def_id()),
-                            &format!("align: {:?}", ty_layout.align),
-                        );
+                        tcx.sess.emit_err(Align {
+                            span: tcx.def_span(item_def_id.to_def_id()),
+                            align: format!("{:?}", ty_layout.align),
+                        });
                     }
 
                     sym::size => {
-                        tcx.sess.span_err(
-                            tcx.def_span(item_def_id.to_def_id()),
-                            &format!("size: {:?}", ty_layout.size),
-                        );
+                        tcx.sess.emit_err(Size {
+                            span: tcx.def_span(item_def_id.to_def_id()),
+                            size: format!("{:?}", ty_layout.size),
+                        });
                     }
 
                     sym::homogeneous_aggregate => {
-                        tcx.sess.span_err(
-                            tcx.def_span(item_def_id.to_def_id()),
-                            &format!(
-                                "homogeneous_aggregate: {:?}",
-                                ty_layout.homogeneous_aggregate(&UnwrapLayoutCx { tcx, param_env }),
+                        tcx.sess.emit_err(HomogeneousAggregate {
+                            span: tcx.def_span(item_def_id.to_def_id()),
+                            homogeneous_aggregate: format!(
+                                "{:?}",
+                                ty_layout.homogeneous_aggregate(&UnwrapLayoutCx { tcx, param_env })
                             ),
-                        );
+                        });
                     }
 
                     sym::debug => {
-                        let normalized_ty = tcx.normalize_erasing_regions(
+                        let normalized_ty = format!(
+                            "{:?}",
+                            tcx.normalize_erasing_regions(
                                 param_env.with_reveal_all_normalized(tcx),
                                 ty,
+                            )
                         );
-                        tcx.sess.span_err(
-                            tcx.def_span(item_def_id.to_def_id()),
-                            &format!("layout_of({:?}) = {:#?}", normalized_ty, *ty_layout),
-                        );
+                        let ty_layout = format!("{:#?}", *ty_layout);
+                        tcx.sess.emit_err(LayoutOf {
+                            span: tcx.def_span(item_def_id.to_def_id()),
+                            normalized_ty,
+                            ty_layout,
+                        });
                     }
 
                     name => {
-                        tcx.sess.span_err(
-                            meta_item.span(),
-                            &format!("unrecognized field name `{}`", name),
-                        );
+                        tcx.sess.emit_err(UnrecognizedField { span: meta_item.span(), name });
                     }
                 }
             }
         }
 
         Err(layout_error) => {
-            tcx.sess.span_err(
-                tcx.def_span(item_def_id.to_def_id()),
-                &format!("layout error: {:?}", layout_error),
-            );
+            tcx.sess.emit_err(Layout {
+                span: tcx.def_span(item_def_id.to_def_id()),
+                layout_error: format!("{:?}", layout_error),
+            });
         }
     }
 }