blob: dd54f3a8120dad86231852824fff13422df8282e [file] [log] [blame]
#include "SourcePos.h"
#include <stdarg.h>
#include <set>
#include <cstdio>
using namespace std;
const SourcePos GENERATED_POS("<generated>", -1);
// ErrorPos
// =============================================================================
struct ErrorPos
{
string file;
int line;
string error;
ErrorPos();
ErrorPos(const ErrorPos& that);
ErrorPos(const string& file, int line, const string& error);
~ErrorPos();
bool operator<(const ErrorPos& rhs) const;
bool operator==(const ErrorPos& rhs) const;
ErrorPos& operator=(const ErrorPos& rhs);
void Print(FILE* to) const;
};
static set<ErrorPos> g_errors;
ErrorPos::ErrorPos()
{
}
ErrorPos::ErrorPos(const ErrorPos& that)
:file(that.file),
line(that.line),
error(that.error)
{
}
ErrorPos::ErrorPos(const string& f, int l, const string& e)
:file(f),
line(l),
error(e)
{
}
ErrorPos::~ErrorPos()
{
}
bool
ErrorPos::operator<(const ErrorPos& rhs) const
{
if (this->file < rhs.file) return true;
if (this->file == rhs.file) {
if (this->line < rhs.line) return true;
if (this->line == rhs.line) {
if (this->error < rhs.error) return true;
}
}
return false;
}
bool
ErrorPos::operator==(const ErrorPos& rhs) const
{
return this->file == rhs.file
&& this->line == rhs.line
&& this->error == rhs.error;
}
ErrorPos&
ErrorPos::operator=(const ErrorPos& rhs)
{
this->file = rhs.file;
this->line = rhs.line;
this->error = rhs.error;
return *this;
}
void
ErrorPos::Print(FILE* to) const
{
if (this->line >= 0) {
fprintf(to, "%s:%d: %s\n", this->file.c_str(), this->line, this->error.c_str());
} else {
fprintf(to, "%s: %s\n", this->file.c_str(), this->error.c_str());
}
}
// SourcePos
// =============================================================================
SourcePos::SourcePos(const string& f, int l)
: file(f), line(l)
{
}
SourcePos::SourcePos(const SourcePos& that)
: file(that.file), line(that.line)
{
}
SourcePos::SourcePos()
: file("???", 0)
{
}
SourcePos::~SourcePos()
{
}
string
SourcePos::ToString() const
{
char buf[1024];
if (this->line >= 0) {
snprintf(buf, sizeof(buf)-1, "%s:%d", this->file.c_str(), this->line);
} else {
snprintf(buf, sizeof(buf)-1, "%s:", this->file.c_str());
}
buf[sizeof(buf)-1] = '\0';
return string(buf);
}
int
SourcePos::Error(const char* fmt, ...) const
{
int retval=0;
char buf[1024];
va_list ap;
va_start(ap, fmt);
retval = vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
char* p = buf + retval - 1;
while (p > buf && *p == '\n') {
*p = '\0';
p--;
}
ErrorPos err(this->file, this->line, string(buf));
if (g_errors.find(err) == g_errors.end()) {
err.Print(stderr);
g_errors.insert(err);
}
return retval;
}
bool
SourcePos::HasErrors()
{
return g_errors.size() > 0;
}
void
SourcePos::PrintErrors(FILE* to)
{
set<ErrorPos>::const_iterator it;
for (it=g_errors.begin(); it!=g_errors.end(); it++) {
it->Print(to);
}
}