compiler/rustc_query_system/src/error.rs

   1 use rustc_errors::AddSubdiagnostic;
   2 use rustc_span::Span;
   3
   4 pub struct CycleStack {
   5     pub span: Span,
   6     pub desc: String,
   7 }
   8
   9 impl AddSubdiagnostic for CycleStack {
  10     fn add_to_diagnostic(self, diag: &mut rustc_errors::Diagnostic) {
  11         diag.span_note(self.span, &format!("...which requires {}...", self.desc));
  12     }
  13 }
  14
  15 #[derive(SessionSubdiagnostic)]
  16 pub enum StackCount {
  17     #[note(query_system::cycle_stack_single)]
  18     Single,
  19     #[note(query_system::cycle_stack_multiple)]
  20     Multiple,
  21 }
  22
  23 #[derive(SessionSubdiagnostic)]
  24 pub enum Alias {
  25     #[note(query_system::cycle_recursive_ty_alias)]
  26     #[help(query_system::cycle_recursive_ty_alias_help1)]
  27     #[help(query_system::cycle_recursive_ty_alias_help2)]
  28     Ty,
  29     #[note(query_system::cycle_recursive_trait_alias)]
  30     Trait,
  31 }
  32
  33 #[derive(SessionSubdiagnostic)]
  34 #[note(query_system::cycle_usage)]
  35 pub struct CycleUsage {
  36     #[primary_span]
  37     pub span: Span,
  38     pub usage: String,
  39 }
  40
  41 #[derive(SessionDiagnostic)]
  42 #[diag(query_system::cycle, code = "E0391")]
  43 pub struct Cycle {
  44     #[primary_span]
  45     pub span: Span,
  46     pub stack_bottom: String,
  47     #[subdiagnostic]
  48     pub cycle_stack: Vec<CycleStack>,
  49     #[subdiagnostic]
  50     pub stack_count: StackCount,
  51     #[subdiagnostic]
  52     pub alias: Option<Alias>,
  53     #[subdiagnostic]
  54     pub cycle_usage: Option<CycleUsage>,
  55 }
  56
  57 #[derive(SessionDiagnostic)]
  58 #[diag(query_system::reentrant)]
  59 pub struct Reentrant;
  60
  61 #[derive(SessionDiagnostic)]
  62 #[diag(query_system::increment_compilation)]
  63 #[help]
  64 #[note(query_system::increment_compilation_note1)]
  65 #[note(query_system::increment_compilation_note2)]
  66 pub struct IncrementCompilation {
  67     pub run_cmd: String,
  68     pub dep_node: String,
  69 }
  70
  71 #[derive(SessionDiagnostic)]
  72 #[diag(query_system::query_overflow)]
  73 pub struct QueryOverflow;