compiler/rustc_query_system/src/error.rs

   1 use rustc_macros::{Diagnostic, Subdiagnostic};
   2 use rustc_session::Limit;
   3 use rustc_span::{Span, Symbol};
   4
   5 #[derive(Subdiagnostic)]
   6 #[note(query_system_cycle_stack_middle)]
   7 pub struct CycleStack {
   8     #[primary_span]
   9     pub span: Span,
  10     pub desc: String,
  11 }
  12
  13 #[derive(Copy, Clone)]
  14 pub enum HandleCycleError {
  15     Error,
  16     Fatal,
  17     DelayBug,
  18 }
  19
  20 #[derive(Subdiagnostic)]
  21 pub enum StackCount {
  22     #[note(query_system_cycle_stack_single)]
  23     Single,
  24     #[note(query_system_cycle_stack_multiple)]
  25     Multiple,
  26 }
  27
  28 #[derive(Subdiagnostic)]
  29 pub enum Alias {
  30     #[note(query_system_cycle_recursive_ty_alias)]
  31     #[help(query_system_cycle_recursive_ty_alias_help1)]
  32     #[help(query_system_cycle_recursive_ty_alias_help2)]
  33     Ty,
  34     #[note(query_system_cycle_recursive_trait_alias)]
  35     Trait,
  36 }
  37
  38 #[derive(Subdiagnostic)]
  39 #[note(query_system_cycle_usage)]
  40 pub struct CycleUsage {
  41     #[primary_span]
  42     pub span: Span,
  43     pub usage: String,
  44 }
  45
  46 #[derive(Diagnostic)]
  47 #[diag(query_system_cycle, code = "E0391")]
  48 pub struct Cycle {
  49     #[primary_span]
  50     pub span: Span,
  51     pub stack_bottom: String,
  52     #[subdiagnostic]
  53     pub cycle_stack: Vec<CycleStack>,
  54     #[subdiagnostic]
  55     pub stack_count: StackCount,
  56     #[subdiagnostic]
  57     pub alias: Option<Alias>,
  58     #[subdiagnostic]
  59     pub cycle_usage: Option<CycleUsage>,
  60 }
  61
  62 #[derive(Diagnostic)]
  63 #[diag(query_system_reentrant)]
  64 pub struct Reentrant;
  65
  66 #[derive(Diagnostic)]
  67 #[diag(query_system_increment_compilation)]
  68 #[help]
  69 #[note(query_system_increment_compilation_note1)]
  70 #[note(query_system_increment_compilation_note2)]
  71 pub struct IncrementCompilation {
  72     pub run_cmd: String,
  73     pub dep_node: String,
  74 }
  75
  76 #[derive(Diagnostic)]
  77 #[help]
  78 #[diag(query_system_query_overflow)]
  79 pub struct QueryOverflow {
  80     #[primary_span]
  81     pub span: Option<Span>,
  82     #[subdiagnostic]
  83     pub layout_of_depth: Option<LayoutOfDepth>,
  84     pub suggested_limit: Limit,
  85     pub crate_name: Symbol,
  86 }
  87
  88 #[derive(Subdiagnostic)]
  89 #[note(query_system_layout_of_depth)]
  90 pub struct LayoutOfDepth {
  91     pub desc: String,
  92     pub depth: usize,
  93 }