Convert uses of BuiltinLintDiag::Normal to custom variants

This ensures all diagnostic messages are created at diagnostic emission
time, making them translatable.

Author: Xiretza

compiler/rustc_builtin_macros/messages.ftl

@@ -247,5 +247,3 @@ builtin_macros_unexpected_lit = expected path to a trait, found literal
     .label = not a trait
     .str_lit = try using `#[derive({$sym})]`
     .other = for example, write `#[derive(Debug)]` for `Debug`
-
-builtin_macros_unnameable_test_items = cannot test inner items

compiler/rustc_builtin_macros/src/asm.rs

@@ -1,6 +1,7 @@
 use crate::errors;
 use crate::util::expr_to_spanned_string;
 use ast::token::IdentIsRaw;
+use lint::BuiltinLintDiag;
 use rustc_ast as ast;
 use rustc_ast::ptr::P;
 use rustc_ast::token::{self, Delimiter};
@@ -509,19 +510,19 @@ fn expand_preparsed_asm(
             };
 
             if template_str.contains(".intel_syntax") {
-                ecx.psess().buffer_lint(
+                ecx.psess().buffer_lint_with_diagnostic(
                     lint::builtin::BAD_ASM_STYLE,
                     find_span(".intel_syntax"),
                     ecx.current_expansion.lint_node_id,
-                    "avoid using `.intel_syntax`, Intel syntax is the default",
+                    BuiltinLintDiag::AvoidUsingIntelSyntax,
                 );
             }
             if template_str.contains(".att_syntax") {
-                ecx.psess().buffer_lint(
+                ecx.psess().buffer_lint_with_diagnostic(
                     lint::builtin::BAD_ASM_STYLE,
                     find_span(".att_syntax"),
                     ecx.current_expansion.lint_node_id,
-                    "avoid using `.att_syntax`, prefer using `options(att_syntax)` instead",
+                    BuiltinLintDiag::AvoidUsingAttSyntax,
                 );
             }
         }

compiler/rustc_builtin_macros/src/source_util.rs

@@ -11,6 +11,7 @@ use rustc_expand::base::{
     resolve_path, DummyResult, ExpandResult, ExtCtxt, MacEager, MacResult, MacroExpanderResult,
 };
 use rustc_expand::module::DirOwnership;
+use rustc_lint_defs::BuiltinLintDiag;
 use rustc_parse::new_parser_from_file;
 use rustc_parse::parser::{ForceCollect, Parser};
 use rustc_session::lint::builtin::INCOMPLETE_INCLUDE;
@@ -143,11 +144,11 @@ pub(crate) fn expand_include<'cx>(
         fn make_expr(mut self: Box<ExpandInclude<'a>>) -> Option<P<ast::Expr>> {
             let expr = parse_expr(&mut self.p).ok()?;
             if self.p.token != token::Eof {
-                self.p.psess.buffer_lint(
+                self.p.psess.buffer_lint_with_diagnostic(
                     INCOMPLETE_INCLUDE,
                     self.p.token.span,
                     self.node_id,
-                    "include macro expected single expression in source",
+                    BuiltinLintDiag::IncompleteInclude,
                 );
             }
             Some(expr)

compiler/rustc_builtin_macros/src/test_harness.rs

@@ -9,6 +9,7 @@ use rustc_ast::{attr, ModKind};
 use rustc_expand::base::{ExtCtxt, ResolverExpand};
 use rustc_expand::expand::{AstFragment, ExpansionConfig};
 use rustc_feature::Features;
+use rustc_lint_defs::BuiltinLintDiag;
 use rustc_session::lint::builtin::UNNAMEABLE_TEST_ITEMS;
 use rustc_session::Session;
 use rustc_span::hygiene::{AstPass, SyntaxContext, Transparency};
@@ -159,11 +160,11 @@ struct InnerItemLinter<'a> {
 impl<'a> Visitor<'a> for InnerItemLinter<'_> {
     fn visit_item(&mut self, i: &'a ast::Item) {
         if let Some(attr) = attr::find_by_name(&i.attrs, sym::rustc_test_marker) {
-            self.sess.psess.buffer_lint(
+            self.sess.psess.buffer_lint_with_diagnostic(
                 UNNAMEABLE_TEST_ITEMS,
                 attr.span,
                 i.id,
-                crate::fluent_generated::builtin_macros_unnameable_test_items,
+                BuiltinLintDiag::UnnameableTestItems,
             );
         }
     }

compiler/rustc_builtin_macros/src/util.rs

@@ -5,7 +5,7 @@ use rustc_errors::{Applicability, Diag, ErrorGuaranteed};
 use rustc_expand::base::{Annotatable, ExpandResult, ExtCtxt};
 use rustc_expand::expand::AstFragment;
 use rustc_feature::AttributeTemplate;
-use rustc_lint_defs::builtin::DUPLICATE_MACRO_ATTRIBUTES;
+use rustc_lint_defs::{builtin::DUPLICATE_MACRO_ATTRIBUTES, BuiltinLintDiag};
 use rustc_parse::{parser, validate_attr};
 use rustc_session::errors::report_lit_error;
 use rustc_span::{BytePos, Span, Symbol};
@@ -42,11 +42,11 @@ pub(crate) fn warn_on_duplicate_attribute(ecx: &ExtCtxt<'_>, item: &Annotatable,
     };
     if let Some(attrs) = attrs {
         if let Some(attr) = attr::find_by_name(attrs, name) {
-            ecx.psess().buffer_lint(
+            ecx.psess().buffer_lint_with_diagnostic(
                 DUPLICATE_MACRO_ATTRIBUTES,
                 attr.span,
                 ecx.current_expansion.lint_node_id,
-                "duplicated attribute",
+                BuiltinLintDiag::DuplicateMacroAttribute,
             );
         }
     }

compiler/rustc_expand/src/config.rs

@@ -14,6 +14,7 @@ use rustc_attr as attr;
 use rustc_data_structures::flat_map_in_place::FlatMapInPlace;
 use rustc_feature::Features;
 use rustc_feature::{ACCEPTED_FEATURES, REMOVED_FEATURES, UNSTABLE_FEATURES};
+use rustc_lint_defs::BuiltinLintDiag;
 use rustc_parse::validate_attr;
 use rustc_session::parse::feature_err;
 use rustc_session::Session;
@@ -249,11 +250,11 @@ impl<'a> StripUnconfigured<'a> {
 
         // Lint on zero attributes in source.
         if expanded_attrs.is_empty() {
-            self.sess.psess.buffer_lint(
+            self.sess.psess.buffer_lint_with_diagnostic(
                 rustc_lint_defs::builtin::UNUSED_ATTRIBUTES,
                 attr.span,
                 ast::CRATE_NODE_ID,
-                "`#[cfg_attr]` does not expand to any attributes",
+                BuiltinLintDiag::CfgAttrNoAttributes,
             );
         }
 
@@ -333,19 +334,19 @@ impl<'a> StripUnconfigured<'a> {
             item_span,
         );
         if attr.has_name(sym::crate_type) {
-            self.sess.psess.buffer_lint(
+            self.sess.psess.buffer_lint_with_diagnostic(
                 rustc_lint_defs::builtin::DEPRECATED_CFG_ATTR_CRATE_TYPE_NAME,
                 attr.span,
                 ast::CRATE_NODE_ID,
-                "`crate_type` within an `#![cfg_attr] attribute is deprecated`",
+                BuiltinLintDiag::CrateTypeInCfgAttr,
             );
         }
         if attr.has_name(sym::crate_name) {
-            self.sess.psess.buffer_lint(
+            self.sess.psess.buffer_lint_with_diagnostic(
                 rustc_lint_defs::builtin::DEPRECATED_CFG_ATTR_CRATE_TYPE_NAME,
                 attr.span,
                 ast::CRATE_NODE_ID,
-                "`crate_name` within an `#![cfg_attr] attribute is deprecated`",
+                BuiltinLintDiag::CrateNameInCfgAttr,
             );
         }
         attr

compiler/rustc_expand/src/mbe/macro_check.rs

@@ -110,7 +110,8 @@ use crate::mbe::{KleeneToken, TokenTree};
 use rustc_ast::token::{Delimiter, IdentIsRaw, Token, TokenKind};
 use rustc_ast::{NodeId, DUMMY_NODE_ID};
 use rustc_data_structures::fx::FxHashMap;
-use rustc_errors::{DiagMessage, MultiSpan};
+use rustc_errors::MultiSpan;
+use rustc_lint_defs::BuiltinLintDiag;
 use rustc_session::lint::builtin::{META_VARIABLE_MISUSE, MISSING_FRAGMENT_SPECIFIER};
 use rustc_session::parse::ParseSess;
 use rustc_span::symbol::kw;
@@ -252,7 +253,7 @@ fn check_binders(
                 // 1. The meta-variable is already bound in the current LHS: This is an error.
                 let mut span = MultiSpan::from_span(span);
                 span.push_span_label(prev_info.span, "previous declaration");
-                buffer_lint(psess, span, node_id, "duplicate matcher binding");
+                buffer_lint(psess, span, node_id, BuiltinLintDiag::DuplicateMatcherBinding);
             } else if get_binder_info(macros, binders, name).is_none() {
                 // 2. The meta-variable is free: This is a binder.
                 binders.insert(name, BinderInfo { span, ops: ops.into() });
@@ -267,11 +268,11 @@ fn check_binders(
                 // FIXME: Report this as a hard error eventually and remove equivalent errors from
                 // `parse_tt_inner` and `nameize`. Until then the error may be reported twice, once
                 // as a hard error and then once as a buffered lint.
-                psess.buffer_lint(
+                psess.buffer_lint_with_diagnostic(
                     MISSING_FRAGMENT_SPECIFIER,
                     span,
                     node_id,
-                    "missing fragment specifier",
+                    BuiltinLintDiag::MissingFragmentSpecifier,
                 );
             }
             if !macros.is_empty() {
@@ -595,7 +596,7 @@ fn check_ops_is_prefix(
             return;
         }
     }
-    buffer_lint(psess, span.into(), node_id, format!("unknown macro variable `{name}`"));
+    buffer_lint(psess, span.into(), node_id, BuiltinLintDiag::UnknownMacroVariable(name));
 }
 
 /// Returns whether `binder_ops` is a prefix of `occurrence_ops`.
@@ -628,30 +629,23 @@ fn ops_is_prefix(
         if i >= occurrence_ops.len() {
             let mut span = MultiSpan::from_span(span);
             span.push_span_label(binder.span, "expected repetition");
-            let message = format!("variable '{name}' is still repeating at this depth");
-            buffer_lint(psess, span, node_id, message);
+            buffer_lint(psess, span, node_id, BuiltinLintDiag::MetaVariableStillRepeating(name));
             return;
         }
         let occurrence = &occurrence_ops[i];
         if occurrence.op != binder.op {
             let mut span = MultiSpan::from_span(span);
             span.push_span_label(binder.span, "expected repetition");
             span.push_span_label(occurrence.span, "conflicting repetition");
-            let message = "meta-variable repeats with different Kleene operator";
-            buffer_lint(psess, span, node_id, message);
+            buffer_lint(psess, span, node_id, BuiltinLintDiag::MetaVariableWrongOperator);
             return;
         }
     }
 }
 
-fn buffer_lint(
-    psess: &ParseSess,
-    span: MultiSpan,
-    node_id: NodeId,
-    message: impl Into<DiagMessage>,
-) {
+fn buffer_lint(psess: &ParseSess, span: MultiSpan, node_id: NodeId, diag: BuiltinLintDiag) {
     // Macros loaded from other crates have dummy node ids.
     if node_id != DUMMY_NODE_ID {
-        psess.buffer_lint(META_VARIABLE_MISUSE, span, node_id, message);
+        psess.buffer_lint_with_diagnostic(META_VARIABLE_MISUSE, span, node_id, diag);
     }
 }

compiler/rustc_interface/src/util.rs

@@ -378,30 +378,17 @@ pub(crate) fn check_attr_crate_type(
 
                 if let ast::MetaItemKind::NameValue(spanned) = a.meta_kind().unwrap() {
                     let span = spanned.span;
-                    let lev_candidate = find_best_match_for_name(
+                    let candidate = find_best_match_for_name(
                         &CRATE_TYPES.iter().map(|(k, _)| *k).collect::<Vec<_>>(),
                         n,
                         None,
                     );
-                    if let Some(candidate) = lev_candidate {
-                        lint_buffer.buffer_lint_with_diagnostic(
-                            lint::builtin::UNKNOWN_CRATE_TYPES,
-                            ast::CRATE_NODE_ID,
-                            span,
-                            BuiltinLintDiag::UnknownCrateTypes(
-                                span,
-                                "did you mean".to_string(),
-                                format!("\"{candidate}\""),
-                            ),
-                        );
-                    } else {
-                        lint_buffer.buffer_lint(
-                            lint::builtin::UNKNOWN_CRATE_TYPES,
-                            ast::CRATE_NODE_ID,
-                            span,
-                            "invalid `crate_type` value",
-                        );
-                    }
+                    lint_buffer.buffer_lint_with_diagnostic(
+                        lint::builtin::UNKNOWN_CRATE_TYPES,
+                        ast::CRATE_NODE_ID,
+                        span,
+                        BuiltinLintDiag::UnknownCrateTypes { span, candidate },
+                    );
                 }
             } else {
                 // This is here mainly to check for using a macro, such as

compiler/rustc_lint/messages.ftl

@@ -163,6 +163,9 @@ lint_builtin_unused_doc_comment = unused doc comment
 lint_builtin_while_true = denote infinite loops with `loop {"{"} ... {"}"}`
     .suggestion = use `loop`
 
+lint_cfg_attr_no_attributes =
+    `#[cfg_attr]` does not expand to any attributes
+
 lint_check_name_unknown_tool = unknown lint tool: `{$tool_name}`
 
 lint_command_line_source = `forbid` lint level was set on command line
@@ -171,6 +174,12 @@ lint_confusable_identifier_pair = found both `{$existing_sym}` and `{$sym}` as i
     .current_use = this identifier can be confused with `{$existing_sym}`
     .other_use = other identifier used here
 
+lint_crate_name_in_cfg_attr_deprecated =
+    `crate_name` within an `#![cfg_attr] attribute is deprecated`
+
+lint_crate_type_in_cfg_attr_deprecated =
+    `crate_type` within an `#![cfg_attr] attribute is deprecated`
+
 lint_cstring_ptr = getting the inner pointer of a temporary `CString`
     .as_ptr_label = this pointer will be invalid
     .unwrap_label = this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
@@ -651,6 +660,8 @@ lint_unknown_lint =
 lint_unknown_tool_in_scoped_lint = unknown tool name `{$tool_name}` found in scoped lint: `{$tool_name}::{$lint_name}`
     .help = add `#![register_tool({$tool_name})]` to the crate root
 
+lint_unnameable_test_items = cannot test inner items
+
 lint_unsupported_group = `{$lint_group}` lint group is not supported with ´--force-warn´
 
 lint_untranslatable_diag = diagnostics should be created using translatable messages
@@ -690,3 +701,6 @@ lint_unused_result = unused result of type `{$ty}`
 
 lint_variant_size_differences =
     enum variant is more than three times larger ({$largest} bytes) than the next largest
+
+lint_wasm_c_abi =
+    older versions of the `wasm-bindgen` crate will be incompatible with future versions of Rust; please update to `wasm-bindgen` v0.2.88