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For PR351:\

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* Modify file reading to use sys::MappedFile \
* Use sys::Path instead of std::string


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18851 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2004-12-13 02:58:40 +00:00
parent fa3b923f9e
commit 3343be3f2e
1 changed files with 9 additions and 10 deletions
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19
include/llvm/Debugger/SourceFile.h
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@ -16,7 +16,8 @@
#ifndef LLVM_DEBUGGER_SOURCEFILE_H #ifndef LLVM_DEBUGGER_SOURCEFILE_H
#define LLVM_DEBUGGER_SOURCEFILE_H #define LLVM_DEBUGGER_SOURCEFILE_H
#include <string> #include "llvm/System/Path.h"
#include "llvm/System/MappedFile.h"
#include <vector> #include <vector>
namespace llvm { namespace llvm {
@ -25,7 +26,7 @@ namespace llvm {
class SourceFile { class SourceFile {
/// Filename - This is the full path of the file that is loaded. /// Filename - This is the full path of the file that is loaded.
/// ///
std::string Filename; sys::Path Filename;
/// Descriptor - The debugging descriptor for this source file. If there /// Descriptor - The debugging descriptor for this source file. If there
/// are multiple descriptors for the same file, this is just the first one /// are multiple descriptors for the same file, this is just the first one
@ -33,10 +34,8 @@ namespace llvm {
/// ///
const GlobalVariable *Descriptor; const GlobalVariable *Descriptor;
/// FileStart, FileEnd - These pointers point to the start and end of the /// This is the memory mapping for the file so we can gain access to it.
/// file data for this file. If there was an error loading the file, these sys::MappedFile File;
/// pointers will both be null.
const char *FileStart, *FileEnd;
/// LineOffset - This vector contains a mapping from source line numbers to /// LineOffset - This vector contains a mapping from source line numbers to
/// their offsets in the file. This data is computed lazily, the first time /// their offsets in the file. This data is computed lazily, the first time
@ -51,11 +50,11 @@ namespace llvm {
/// reading it, or if the user cancels the operation. Instead, it will just /// reading it, or if the user cancels the operation. Instead, it will just
/// be an empty source file. /// be an empty source file.
SourceFile(const std::string &fn, const GlobalVariable *Desc) SourceFile(const std::string &fn, const GlobalVariable *Desc)
: Filename(fn), Descriptor(Desc), FileStart(0), FileEnd(0) { : Filename(fn), Descriptor(Desc), File(Filename) {
readFile(); readFile();
} }
~SourceFile() { ~SourceFile() {
delete[] FileStart; File.unmap();
} }
/// getDescriptor - Return the debugging decriptor for this source file. /// getDescriptor - Return the debugging decriptor for this source file.
@ -64,7 +63,7 @@ namespace llvm {
/// getFilename - Return the fully resolved path that this file was loaded /// getFilename - Return the fully resolved path that this file was loaded
/// from. /// from.
const std::string &getFilename() const { return Filename; } const std::string &getFilename() const { return Filename.toString(); }
/// getSourceLine - Given a line number, return the start and end of the /// getSourceLine - Given a line number, return the start and end of the
/// line in the file. If the line number is invalid, or if the file could /// line in the file. If the line number is invalid, or if the file could
@ -82,7 +81,7 @@ namespace llvm {
} }
private: private:
/// readFile - Load Filename into FileStart and FileEnd. /// readFile - Load Filename into memory
/// ///
void readFile(); void readFile();