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, c_uint};
  17 use std::ptr;
  18
  19 use {ValueRef, TwineRef, DebugLocRef, DiagnosticInfoRef};
  20
  21 #[derive(Copy)]
  22 pub enum OptimizationDiagnosticKind {
  23     OptimizationRemark,
  24     OptimizationMissed,
  25     OptimizationAnalysis,
  26     OptimizationFailure,
  27 }
  28
  29 impl OptimizationDiagnosticKind {
  30     pub fn describe(self) -> &'static str {
  31         match self {
  32             OptimizationRemark => "remark",
  33             OptimizationMissed => "missed",
  34             OptimizationAnalysis => "analysis",
  35             OptimizationFailure => "failure",
  36         }
  37     }
  38 }
  39
  40 #[allow(raw_pointer_derive)]
  41 #[derive(Copy)]
  42 pub struct OptimizationDiagnostic {
  43     pub kind: OptimizationDiagnosticKind,
  44     pub pass_name: *const c_char,
  45     pub function: ValueRef,
  46     pub debug_loc: DebugLocRef,
  47     pub message: TwineRef,
  48 }
  49
  50 impl OptimizationDiagnostic {
  51     unsafe fn unpack(kind: OptimizationDiagnosticKind, di: DiagnosticInfoRef)
  52             -> OptimizationDiagnostic {
  53
  54         let mut opt = OptimizationDiagnostic {
  55             kind: kind,
  56             pass_name: ptr::null(),
  57             function: ptr::null_mut(),
  58             debug_loc: ptr::null_mut(),
  59             message: ptr::null_mut(),
  60         };
  61
  62         super::LLVMUnpackOptimizationDiagnostic(di,
  63             &mut opt.pass_name,
  64             &mut opt.function,
  65             &mut opt.debug_loc,
  66             &mut opt.message);
  67
  68         opt
  69     }
  70 }
  71
  72 pub struct InlineAsmDiagnostic {
  73     pub cookie: c_uint,
  74     pub message: TwineRef,
  75     pub instruction: ValueRef,
  76 }
  77
  78 impl Copy for InlineAsmDiagnostic {}
  79
  80 impl InlineAsmDiagnostic {
  81     unsafe fn unpack(di: DiagnosticInfoRef)
  82             -> InlineAsmDiagnostic {
  83
  84         let mut opt = InlineAsmDiagnostic {
  85             cookie: 0,
  86             message: ptr::null_mut(),
  87             instruction: ptr::null_mut(),
  88         };
  89
  90         super::LLVMUnpackInlineAsmDiagnostic(di,
  91             &mut opt.cookie,
  92             &mut opt.message,
  93             &mut opt.instruction);
  94
  95         opt
  96     }
  97 }
  98
  99 #[derive(Copy)]
 100 pub enum Diagnostic {
 101     Optimization(OptimizationDiagnostic),
 102     InlineAsm(InlineAsmDiagnostic),
 103
 104     /// LLVM has other types that we do not wrap here.
 105     UnknownDiagnostic(DiagnosticInfoRef),
 106 }
 107
 108 impl Diagnostic {
 109     pub unsafe fn unpack(di: DiagnosticInfoRef) -> Diagnostic {
 110         let kind = super::LLVMGetDiagInfoKind(di);
 111
 112         match kind {
 113             super::DK_InlineAsm
 114                 => InlineAsm(InlineAsmDiagnostic::unpack(di)),
 115
 116             super::DK_OptimizationRemark
 117                 => Optimization(OptimizationDiagnostic::unpack(OptimizationRemark, di)),
 118
 119             super::DK_OptimizationRemarkMissed
 120                 => Optimization(OptimizationDiagnostic::unpack(OptimizationMissed, di)),
 121
 122             super::DK_OptimizationRemarkAnalysis
 123                 => Optimization(OptimizationDiagnostic::unpack(OptimizationAnalysis, di)),
 124
 125             super::DK_OptimizationFailure
 126                 => Optimization(OptimizationDiagnostic::unpack(OptimizationFailure, di)),
 127
 128             _ => UnknownDiagnostic(di)
 129         }
 130     }
 131 }