1 files changed, 120 insertions, 0 deletions
diff --git a/compiler/rustc_interface/src/errors.rs b/compiler/rustc_interface/src/errors.rs
new file mode 100644
index 00000000000..6b39b4f1891
--- /dev/null
+++ b/compiler/rustc_interface/src/errors.rs
@@ -0,0 +1,120 @@
+use std::io;
+use std::path::Path;
+
+use rustc_macros::Diagnostic;
+use rustc_span::{Span, Symbol};
+
+#[derive(Diagnostic)]
+#[diag(interface_crate_name_does_not_match)]
+pub(crate) struct CrateNameDoesNotMatch {
+    #[primary_span]
+    pub(crate) span: Span,
+    pub(crate) crate_name: Symbol,
+    pub(crate) attr_crate_name: Symbol,
+}
+
+#[derive(Diagnostic)]
+#[diag(interface_crate_name_invalid)]
+pub(crate) struct CrateNameInvalid<'a> {
+    pub(crate) crate_name: &'a str,
+}
+
+#[derive(Diagnostic)]
+#[diag(interface_ferris_identifier)]
+pub struct FerrisIdentifier {
+    #[primary_span]
+    pub spans: Vec<Span>,
+    #[suggestion(code = "{ferris_fix}", applicability = "maybe-incorrect")]
+    pub first_span: Span,
+    pub ferris_fix: &'static str,
+}
+
+#[derive(Diagnostic)]
+#[diag(interface_emoji_identifier)]
+pub struct EmojiIdentifier {
+    #[primary_span]
+    pub spans: Vec<Span>,
+    pub ident: Symbol,
+}
+
+#[derive(Diagnostic)]
+#[diag(interface_mixed_bin_crate)]
+pub struct MixedBinCrate;
+
+#[derive(Diagnostic)]
+#[diag(interface_mixed_proc_macro_crate)]
+pub struct MixedProcMacroCrate;
+
+#[derive(Diagnostic)]
+#[diag(interface_error_writing_dependencies)]
+pub struct ErrorWritingDependencies<'a> {
+    pub path: &'a Path,
+    pub error: io::Error,
+}
+
+#[derive(Diagnostic)]
+#[diag(interface_input_file_would_be_overwritten)]
+pub struct InputFileWouldBeOverWritten<'a> {
+    pub path: &'a Path,
+}
+
+#[derive(Diagnostic)]
+#[diag(interface_generated_file_conflicts_with_directory)]
+pub struct GeneratedFileConflictsWithDirectory<'a> {
+    pub input_path: &'a Path,
+    pub dir_path: &'a Path,
+}
+
+#[derive(Diagnostic)]
+#[diag(interface_temps_dir_error)]
+pub struct TempsDirError;
+
+#[derive(Diagnostic)]
+#[diag(interface_out_dir_error)]
+pub struct OutDirError;
+
+#[derive(Diagnostic)]
+#[diag(interface_failed_writing_file)]
+pub struct FailedWritingFile<'a> {
+    pub path: &'a Path,
+    pub error: io::Error,
+}
+
+#[derive(Diagnostic)]
+#[diag(interface_proc_macro_crate_panic_abort)]
+pub struct ProcMacroCratePanicAbort;
+
+#[derive(Diagnostic)]
+#[diag(interface_multiple_output_types_adaption)]
+pub struct MultipleOutputTypesAdaption;
+
+#[derive(Diagnostic)]
+#[diag(interface_ignoring_extra_filename)]
+pub struct IgnoringExtraFilename;
+
+#[derive(Diagnostic)]
+#[diag(interface_ignoring_out_dir)]
+pub struct IgnoringOutDir;
+
+#[derive(Diagnostic)]
+#[diag(interface_multiple_output_types_to_stdout)]
+pub struct MultipleOutputTypesToStdout;
+
+#[derive(Diagnostic)]
+#[diag(interface_abi_required_feature)]
+#[note]
+#[note(interface_abi_required_feature_issue)]
+pub(crate) struct AbiRequiredTargetFeature<'a> {
+    pub feature: &'a str,
+    pub enabled: &'a str,
+}
+
+#[derive(Diagnostic)]
+#[diag(interface_limit_invalid)]
+pub(crate) struct LimitInvalid<'a> {
+    #[primary_span]
+    pub span: Span,
+    #[label]
+    pub value_span: Span,
+    pub error_str: &'a str,
+}