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, Clone)]
  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, Clone)]
  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 #[derive(Copy, Clone)]
  73 pub struct InlineAsmDiagnostic {
  74     pub cookie: c_uint,
  75     pub message: TwineRef,
  76     pub instruction: ValueRef,
  77 }
  78
  79 impl InlineAsmDiagnostic {
  80     unsafe fn unpack(di: DiagnosticInfoRef)
  81             -> InlineAsmDiagnostic {
  82
  83         let mut opt = InlineAsmDiagnostic {
  84             cookie: 0,
  85             message: ptr::null_mut(),
  86             instruction: ptr::null_mut(),
  87         };
  88
  89         super::LLVMUnpackInlineAsmDiagnostic(di,
  90             &mut opt.cookie,
  91             &mut opt.message,
  92             &mut opt.instruction);
  93
  94         opt
  95     }
  96 }
  97
  98 #[derive(Copy, Clone)]
  99 pub enum Diagnostic {
 100     Optimization(OptimizationDiagnostic),
 101     InlineAsm(InlineAsmDiagnostic),
 102
 103     /// LLVM has other types that we do not wrap here.
 104     UnknownDiagnostic(DiagnosticInfoRef),
 105 }
 106
 107 impl Diagnostic {
 108     pub unsafe fn unpack(di: DiagnosticInfoRef) -> Diagnostic {
 109         let kind = super::LLVMGetDiagInfoKind(di);
 110
 111         match kind {
 112             super::DK_InlineAsm
 113                 => InlineAsm(InlineAsmDiagnostic::unpack(di)),
 114
 115             super::DK_OptimizationRemark
 116                 => Optimization(OptimizationDiagnostic::unpack(OptimizationRemark, di)),
 117
 118             super::DK_OptimizationRemarkMissed
 119                 => Optimization(OptimizationDiagnostic::unpack(OptimizationMissed, di)),
 120
 121             super::DK_OptimizationRemarkAnalysis
 122                 => Optimization(OptimizationDiagnostic::unpack(OptimizationAnalysis, di)),
 123
 124             super::DK_OptimizationFailure
 125                 => Optimization(OptimizationDiagnostic::unpack(OptimizationFailure, di)),
 126
 127             _ => UnknownDiagnostic(di)
 128         }
 129     }
 130 }