src/librustc_llvm/diagnostic.rs

   1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 //! LLVM diagnostic reports.
  12
  13 pub use self::OptimizationDiagnosticKind::*;
  14 pub use self::Diagnostic::*;
  15
  16 use libc::c_char;
  17
  18 use {ValueRef, TwineRef, DebugLocRef, DiagnosticInfoRef};
  19
  20 pub enum OptimizationDiagnosticKind {
  21     OptimizationRemark,
  22     OptimizationMissed,
  23     OptimizationAnalysis,
  24     OptimizationFailure,
  25 }
  26
  27 impl OptimizationDiagnosticKind {
  28     pub fn describe(self) -> &'static str {
  29         match self {
  30             OptimizationRemark => "remark",
  31             OptimizationMissed => "missed",
  32             OptimizationAnalysis => "analysis",
  33             OptimizationFailure => "failure",
  34         }
  35     }
  36 }
  37
  38 pub struct OptimizationDiagnostic {
  39     pub kind: OptimizationDiagnosticKind,
  40     pub pass_name: *const c_char,
  41     pub function: ValueRef,
  42     pub debug_loc: DebugLocRef,
  43     pub message: TwineRef,
  44 }
  45
  46 impl OptimizationDiagnostic {
  47     unsafe fn unpack(kind: OptimizationDiagnosticKind, di: DiagnosticInfoRef)
  48             -> OptimizationDiagnostic {
  49
  50         let mut opt = OptimizationDiagnostic {
  51             kind: kind,
  52             pass_name: 0 as *const c_char,
  53             function: 0 as ValueRef,
  54             debug_loc: 0 as DebugLocRef,
  55             message: 0 as TwineRef,
  56         };
  57
  58         super::LLVMUnpackOptimizationDiagnostic(di,
  59             &mut opt.pass_name,
  60             &mut opt.function,
  61             &mut opt.debug_loc,
  62             &mut opt.message);
  63
  64         opt
  65     }
  66 }
  67
  68 pub enum Diagnostic {
  69     Optimization(OptimizationDiagnostic),
  70
  71     /// LLVM has other types that we do not wrap here.
  72     UnknownDiagnostic(DiagnosticInfoRef),
  73 }
  74
  75 impl Diagnostic {
  76     pub unsafe fn unpack(di: DiagnosticInfoRef) -> Diagnostic {
  77         let kind = super::LLVMGetDiagInfoKind(di);
  78
  79         match kind {
  80             super::DK_OptimizationRemark
  81                 => Optimization(OptimizationDiagnostic::unpack(OptimizationRemark, di)),
  82
  83             super::DK_OptimizationRemarkMissed
  84                 => Optimization(OptimizationDiagnostic::unpack(OptimizationMissed, di)),
  85
  86             super::DK_OptimizationRemarkAnalysis
  87                 => Optimization(OptimizationDiagnostic::unpack(OptimizationAnalysis, di)),
  88
  89             super::DK_OptimizationFailure
  90                 => Optimization(OptimizationDiagnostic::unpack(OptimizationFailure, di)),
  91
  92             _ => UnknownDiagnostic(di)
  93         }
  94     }
  95 }