Rollup of 8 pull requests

.mailmap

@@ -328,7 +328,8 @@ Kyle J Strand <batmanaod@gmail.com> <BatmanAoD@users.noreply.github.com>
 Kyle J Strand <batmanaod@gmail.com> <kyle.j.strand@gmail.com>
 Kyle J Strand <batmanaod@gmail.com> <kyle.strand@pieinsurance.com>
 Kyle J Strand <batmanaod@gmail.com> <kyle.strand@rms.com>
-Laurențiu Nicola <lnicola@dend.ro>
+Laurențiu Nicola <lnicola@dend.ro> Laurentiu Nicola <lnicola@dend.ro>
+Laurențiu Nicola <lnicola@dend.ro> <lnicola@users.noreply.github.com>
 lcnr <rust@lcnr.de> <bastian_kauschke@hotmail.de>
 Lee Jeffery <leejeffery@gmail.com> Lee Jeffery <lee@leejeffery.co.uk>
 Lee Wondong <wdlee91@gmail.com>

Cargo.lock

@@ -662,6 +662,7 @@ dependencies = [
  "diff",
  "getopts",
  "glob",
+ "home",
  "lazycell",
  "libc",
  "miow",
@@ -1663,6 +1664,15 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
+[[package]]
+name = "home"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5444c27eef6923071f7ebcc33e3444508466a76f7a2b93da00ed6e19f30c1ddb"
+dependencies = [
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "html-checker"
 version = "0.1.0"

compiler/rustc_data_structures/src/graph/dominators/mod.rs

@@ -51,7 +51,7 @@ pub fn dominators<G: ControlFlowGraph>(graph: &G) -> Dominators<G::Node> {
     // Traverse the graph, collecting a number of things:
     //
     // * Preorder mapping (to it, and back to the actual ordering)
-    // * Postorder mapping (used exclusively for rank_partial_cmp on the final product)
+    // * Postorder mapping (used exclusively for `cmp_in_dominator_order` on the final product)
     // * Parents for each vertex in the preorder tree
     //
     // These are all done here rather than through one of the 'standard'
@@ -342,8 +342,8 @@ impl<Node: Idx> Dominators<Node> {
     /// relationship, the dominator will always precede the dominated. (The relative ordering
     /// of two unrelated nodes will also be consistent, but otherwise the order has no
     /// meaning.) This method cannot be used to determine if either Node dominates the other.
-    pub fn rank_partial_cmp(&self, lhs: Node, rhs: Node) -> Option<Ordering> {
-        self.post_order_rank[rhs].partial_cmp(&self.post_order_rank[lhs])
+    pub fn cmp_in_dominator_order(&self, lhs: Node, rhs: Node) -> Ordering {
+        self.post_order_rank[rhs].cmp(&self.post_order_rank[lhs])
     }
 
     /// Returns true if `a` dominates `b`.

compiler/rustc_errors/src/annotate_snippet_emitter_writer.rs

@@ -169,6 +169,7 @@ impl AnnotateSnippetEmitterWriter {
                         .map(|line| {
                             // Ensure the source file is present before we try
                             // to load a string from it.
+                            // FIXME(#115869): support -Z ignore-directory-in-diagnostics-source-blocks
                             source_map.ensure_source_file_source_present(&file);
                             (
                                 format!("{}", source_map.filename_for_diagnostics(&file.name)),

compiler/rustc_errors/src/emitter.rs

@@ -8,7 +8,7 @@
 //! The output types are defined in `rustc_session::config::ErrorOutputType`.
 
 use rustc_span::source_map::SourceMap;
-use rustc_span::{FileLines, SourceFile, Span};
+use rustc_span::{FileLines, FileName, SourceFile, Span};
 
 use crate::snippet::{
     Annotation, AnnotationColumn, AnnotationType, Line, MultilineAnnotation, Style, StyledString,
@@ -635,6 +635,7 @@ pub struct EmitterWriter {
     short_message: bool,
     teach: bool,
     ui_testing: bool,
+    ignored_directories_in_source_blocks: Vec<String>,
     diagnostic_width: Option<usize>,
 
     macro_backtrace: bool,
@@ -664,6 +665,7 @@ impl EmitterWriter {
             short_message: false,
             teach: false,
             ui_testing: false,
+            ignored_directories_in_source_blocks: Vec::new(),
             diagnostic_width: None,
             macro_backtrace: false,
             track_diagnostics: false,
@@ -1193,7 +1195,7 @@ impl EmitterWriter {
         let will_be_emitted = |span: Span| {
             !span.is_dummy() && {
                 let file = sm.lookup_source_file(span.hi());
-                sm.ensure_source_file_source_present(&file)
+                should_show_source_code(&self.ignored_directories_in_source_blocks, sm, &file)
             }
         };
 
@@ -1388,7 +1390,11 @@ impl EmitterWriter {
         // Print out the annotate source lines that correspond with the error
         for annotated_file in annotated_files {
             // we can't annotate anything if the source is unavailable.
-            if !sm.ensure_source_file_source_present(&annotated_file.file) {
+            if !should_show_source_code(
+                &self.ignored_directories_in_source_blocks,
+                sm,
+                &annotated_file.file,
+            ) {
                 if !self.short_message {
                     // We'll just print an unannotated message.
                     for (annotation_id, line) in annotated_file.lines.iter().enumerate() {
@@ -2737,3 +2743,18 @@ pub fn is_case_difference(sm: &SourceMap, suggested: &str, sp: Span) -> bool {
             //        bug, but be defensive against that here.
             && found != suggested
 }
+
+pub(crate) fn should_show_source_code(
+    ignored_directories: &[String],
+    sm: &SourceMap,
+    file: &SourceFile,
+) -> bool {
+    if !sm.ensure_source_file_source_present(file) {
+        return false;
+    }
+
+    let FileName::Real(name) = &file.name else { return true };
+    name.local_path()
+        .map(|path| ignored_directories.iter().all(|dir| !path.starts_with(dir)))
+        .unwrap_or(true)
+}

compiler/rustc_errors/src/json.rs

@@ -12,7 +12,7 @@
 use rustc_span::source_map::{FilePathMapping, SourceMap};
 use termcolor::{ColorSpec, WriteColor};
 
-use crate::emitter::{Emitter, HumanReadableErrorType};
+use crate::emitter::{should_show_source_code, Emitter, HumanReadableErrorType};
 use crate::registry::Registry;
 use crate::translation::{to_fluent_args, Translate};
 use crate::DiagnosticId;
@@ -45,6 +45,7 @@ pub struct JsonEmitter {
     fallback_bundle: LazyFallbackBundle,
     pretty: bool,
     ui_testing: bool,
+    ignored_directories_in_source_blocks: Vec<String>,
     json_rendered: HumanReadableErrorType,
     diagnostic_width: Option<usize>,
     macro_backtrace: bool,
@@ -73,6 +74,7 @@ impl JsonEmitter {
             fallback_bundle,
             pretty,
             ui_testing: false,
+            ignored_directories_in_source_blocks: Vec::new(),
             json_rendered,
             diagnostic_width,
             macro_backtrace,
@@ -127,6 +129,7 @@ impl JsonEmitter {
             fallback_bundle,
             pretty,
             ui_testing: false,
+            ignored_directories_in_source_blocks: Vec::new(),
             json_rendered,
             diagnostic_width,
             macro_backtrace,
@@ -138,6 +141,10 @@ impl JsonEmitter {
     pub fn ui_testing(self, ui_testing: bool) -> Self {
         Self { ui_testing, ..self }
     }
+
+    pub fn ignored_directories_in_source_blocks(self, value: Vec<String>) -> Self {
+        Self { ignored_directories_in_source_blocks: value, ..self }
+    }
 }
 
 impl Translate for JsonEmitter {
@@ -381,6 +388,7 @@ impl Diagnostic {
             .track_diagnostics(je.track_diagnostics)
             .terminal_url(je.terminal_url)
             .ui_testing(je.ui_testing)
+            .ignored_directories_in_source_blocks(je.ignored_directories_in_source_blocks.clone())
             .emit_diagnostic(diag);
         let output = Arc::try_unwrap(output.0).unwrap().into_inner().unwrap();
         let output = String::from_utf8(output).unwrap();
@@ -558,7 +566,11 @@ impl DiagnosticSpanLine {
             .span_to_lines(span)
             .map(|lines| {
                 // We can't get any lines if the source is unavailable.
-                if !je.sm.ensure_source_file_source_present(&lines.file) {
+                if !should_show_source_code(
+                    &je.ignored_directories_in_source_blocks,
+                    &je.sm,
+                    &lines.file,
+                ) {
                     return vec![];
                 }
 

compiler/rustc_hir_typeck/messages.ftl

@@ -16,6 +16,21 @@ hir_typeck_candidate_trait_note = `{$trait_name}` defines an item `{$item_name}`
     *[other] , perhaps you need to restrict type parameter `{$action_or_ty}` with it
 }
 
+hir_typeck_cannot_cast_to_bool = cannot cast `{$expr_ty}` as `bool`
+    .suggestion = compare with zero instead
+    .help = compare with zero instead
+    .label = unsupported cast
+
+hir_typeck_cast_enum_drop = cannot cast enum `{$expr_ty}` into integer `{$cast_ty}` because it implements `Drop`
+
+hir_typeck_cast_unknown_pointer = cannot cast {$to ->
+    [true] to
+    *[false] from
+    } a pointer of an unknown kind
+    .label_to = needs more type information
+    .note = the type information given here is insufficient to check whether the pointer cast is valid
+    .label_from = the type information given here is insufficient to check whether the pointer cast is valid
+
 hir_typeck_const_select_must_be_const = this argument must be a `const fn`
     .help = consult the documentation on `const_eval_select` for more information
 
@@ -29,6 +44,8 @@ hir_typeck_convert_using_method = try using `{$sugg}` to convert `{$found}` to `
 
 hir_typeck_ctor_is_private = tuple struct constructor `{$def}` is private
 
+hir_typeck_deref_is_empty = this expression `Deref`s to `{$deref_ty}` which implements `is_empty`
+
 hir_typeck_expected_default_return_type = expected `()` because of default return type
 
 hir_typeck_expected_return_type = expected `{$expected}` because of return type
@@ -57,6 +74,13 @@ hir_typeck_functional_record_update_on_non_struct =
 hir_typeck_help_set_edition_cargo = set `edition = "{$edition}"` in `Cargo.toml`
 hir_typeck_help_set_edition_standalone = pass `--edition {$edition}` to `rustc`
 
+hir_typeck_int_to_fat = cannot cast `{$expr_ty}` to a pointer that {$known_wide ->
+    [true] is
+    *[false] may be
+    } wide
+hir_typeck_int_to_fat_label = creating a `{$cast_ty}` requires both an address and {$metadata}
+hir_typeck_int_to_fat_label_nightly = consider casting this expression to `*const ()`, then using `core::ptr::from_raw_parts`
+
 hir_typeck_invalid_callee = expected function, found {$ty}
 
 hir_typeck_lang_start_expected_sig_note = the `start` lang item should have the signature `fn(fn() -> T, isize, *const *const u8, u8) -> isize`
@@ -69,6 +93,16 @@ hir_typeck_lang_start_incorrect_param = parameter {$param_num} of the `start` la
 hir_typeck_lang_start_incorrect_ret_ty = the return type of the `start` lang item is incorrect
     .suggestion = change the type from `{$found_ty}` to `{$expected_ty}`
 
+hir_typeck_lossy_provenance_int2ptr =
+    strict provenance disallows casting integer `{$expr_ty}` to pointer `{$cast_ty}`
+    .suggestion = use `.with_addr()` to adjust a valid pointer in the same allocation, to this address
+    .help = if you can't comply with strict provenance and don't have a pointer with the correct provenance you can use `std::ptr::from_exposed_addr()` instead
+
+hir_typeck_lossy_provenance_ptr2int =
+    under strict provenance it is considered bad style to cast pointer `{$expr_ty}` to integer `{$cast_ty}`
+    .suggestion = use `.addr()` to obtain the address of a pointer
+    .help = if you can't comply with strict provenance and need to expose the pointer provenance you can use `.expose_addr()` instead
+
 hir_typeck_method_call_on_unknown_raw_pointee =
     cannot call a method on a raw pointer with an unknown pointee type
 
@@ -113,8 +147,18 @@ hir_typeck_suggest_boxing_when_appropriate = store this in the heap by calling `
 
 hir_typeck_suggest_ptr_null_mut = consider using `core::ptr::null_mut` instead
 
+hir_typeck_trivial_cast = trivial {$numeric ->
+    [true] numeric cast
+    *[false] cast
+    }: `{$expr_ty}` as `{$cast_ty}`
+    .help = cast can be replaced by coercion; this might require a temporary variable
+
 hir_typeck_union_pat_dotdot = `..` cannot be used in union patterns
 
 hir_typeck_union_pat_multiple_fields = union patterns should have exactly one field
+
+hir_typeck_use_is_empty =
+    consider using the `is_empty` method on `{$expr_ty}` to determine if it contains anything
+
 hir_typeck_yield_expr_outside_of_generator =
     yield expression outside of generator literal