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logger.cc
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logger.cc
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#include <stdarg.h>
#include <stdlib.h>
#include <vector>
#include <algorithm>
#include "logger.hh"
#include "lslmini.hh"
#include "lslmini.tab.h"
Logger* Logger::instance = NULL;
Logger *Logger::get() {
if ( instance == NULL )
instance = new Logger();
return instance;
}
void Logger::log(LogLevel level, YYLTYPE *yylloc, const char *fmt, ...) {
va_list args;
va_start(args, fmt);
logv(level, yylloc, fmt, args);
va_end(args);
}
void Logger::error(YYLTYPE *yylloc, ErrorCode error, ...) {
// FIXME: magic numbers
static char buf[1024];
char *bp = buf;
const char *fmt;
const char *fp;
bool seen_before;
LogLevel level = (error < W_WARNING) ? LOG_ERROR : LOG_WARN;
va_list args;
*bp = 0;
if ( level == LOG_ERROR ) {
fmt = error_messages[ (int)(error - E_ERROR) ];
} else {
fmt = warning_messages[ (int)(error - W_WARNING) ];
}
if ( check_assertions == ALL_ASSERTIONS ) {
// if we're checking all assertions, messages will be removed by matching
// assertions, so we just add "Unexpected" to all of them.
bp += sprintf(bp, level == LOG_ERROR ? "Unexpected error: " : "Unexpected warning: ");
// upgrade everything to error
level = LOG_ERROR;
}
// see if we've seen this error code before
if ( std::find(errors_seen.begin(), errors_seen.end(), error) != errors_seen.end() ) {
seen_before = true;
} else {
seen_before = false;
errors_seen.push_back(error);
}
if ( show_error_codes ) {
bp += sprintf(bp, "[E%d] ", (int)error );
}
for ( fp = fmt ; *fp ; ++fp ) {
if ( *fp == '\n' )
break;
else
*bp++ = *fp;
}
*bp = 0;
va_start(args, error);
logv( level, yylloc, buf, args, error );
va_end(args);
// extra info we haven't seen before
if ( !seen_before && *fp != 0 ) {
while ( *fp ) {
bp = buf;
for ( ++fp; *fp; ++fp ) {
if ( *fp == '\n' )
break;
else
*bp++ = *fp;
}
*bp = 0;
log( LOG_CONTINUE, NULL, buf );
}
}
}
void Logger::logv(LogLevel level, YYLTYPE *yylloc, const char *fmt, va_list args, ErrorCode error) {
const char *type = NULL;
static char buf[1024];
char *bp = buf;
switch (level) {
case LOG_ERROR:
type = "ERROR";
++errors;
break;
case LOG_WARN:
type = "WARN";
++warnings;
break;
case LOG_INFO:
if ( show_info == false ) return;
type = "INFO";
break;
case LOG_DEBUG:
case LOG_DEBUG_MINOR:
case LOG_DEBUG_SPAM:
#ifdef DEBUG_LEVEL
if ( DEBUG_LEVEL < level ) return;
type = "DEBUG";
#else /* not DEBUG_LEVEL */
return;
#endif /* not DEBUG_LEVEL */
break;
case LOG_CONTINUE:
vsprintf( bp, fmt, args );
if ( last_message )
last_message->cont( buf );
return;
default:
file = stdout;
type = "OTHER";
break;
}
if (file_path != NULL)
{
bp += sprintf(bp, "%s::", file_path);
}
bp += sprintf(bp, "%5s:: ", type );
if ( yylloc != NULL ) {
bp += sprintf(bp, "(%3d,%3d)", yylloc->first_line, yylloc->first_column);
if ( show_end )
bp += sprintf(bp, "-(%3d,%3d)", yylloc->last_line, yylloc->last_column);
bp += sprintf(bp, ": ");
}
bp += vsprintf(bp, fmt, args);
last_message = new LogMessage( level, yylloc, buf, error );
// fprintf(stderr, "%p\n", last_message);
messages.push_back(last_message);
return;
}
struct LogMessageSort {
bool operator()(LogMessage* const& left, LogMessage* const& right) {
if ( left->get_type() < right->get_type() )
return true;
else if ( left->get_type() > right->get_type() )
return false;
if ( left->get_loc()->first_line < right->get_loc()->first_line )
return true;
else if ( left->get_loc()->first_line > right->get_loc()->first_line )
return false;
if ( left->get_loc()->first_column < right->get_loc()->first_column )
return true;
return false;
}
};
void Logger::report() {
std::vector<LogMessage*>::iterator i;
if ( check_assertions != NO_ASSERTIONS ) {
std::vector< std::pair<int, ErrorCode>* >::iterator ai;
for ( ai = assertions.begin(); ai != assertions.end(); ++ai ) {
for ( i = messages.begin(); i != messages.end(); ++i ) {
if ( (*ai)->first == (*i)->get_loc()->first_line && (*ai)->second == (*i)->get_error() ) {
// when ALL_ASSERTIONS, warnings are treated as errors.
if ( check_assertions == ALL_ASSERTIONS || ((*ai)->second >= E_ERROR && (*ai)->second <= E_LAST) )
--errors;
else
--warnings;
messages.erase(i);
i = messages.end() + 1; // HACK?: ensure that i isn't messages.end()
break;
}
}
if ( check_assertions == ALL_ASSERTIONS && i == messages.end() )
LOG( LOG_ERROR, NULL, "Assertion failed: error %d on line %d.", (*ai)->second, (*ai)->first );
}
}
if ( sort )
std::sort( messages.begin(), messages.end(), LogMessageSort() );
for ( i = messages.begin(); i != messages.end(); ++i )
(*i)->print(stderr);
fprintf(stderr, "TOTAL:: Errors: %d Warnings: %d\n", errors, warnings);
}
LogMessage::LogMessage( LogLevel type, YYLTYPE *loc, char *message, ErrorCode error ) : type(type), error(error) {
char *np = new char[strlen(message)+1];
if ( loc ) this->loc = *loc;
if ( np != NULL ) {
strcpy(np, message);
messages.push_back(np);
}
}
void LogMessage::cont( char *message ) {
char *np = new char[strlen(message)+1];
if ( np != NULL ) {
strcpy(np, message);
messages.push_back(np);
}
}
void LogMessage::print( FILE *fp ) {
std::vector<char*>::const_iterator i;
for ( i = messages.begin(); i != messages.end(); ++i ) {
if ( i != messages.begin() )
fprintf( fp, "%20s", "");
fprintf( fp, "%s\n", *i );
}
}
LogMessage::~LogMessage() {
std::vector<char*>::const_iterator i;
for ( i = messages.begin(); i != messages.end(); ++i )
delete *i;
}
/// ERROR MESSAGE
/****************************************************************************
IMPORTANT: Do not add messages here without having added the corresponding
enum first in logger.hh; see caveats there.
****************************************************************************/
const char *Logger::error_messages[] = {
"ERROR", // 10000
"Duplicate declaration of `%s'; previously declared at (%d, %d).", // 10001
"Invalid operator: %s%s%s%s%s.", // 10002
"`%s' is deprecated.", // 10003
"`%s' is deprecated, use %s instead.", // 10004
"Attempting to use `%s' as a %s, but it is a%s %s.", // 10005
"`%s' is undeclared.", // 10006
"`%s' is undeclared; did you mean %s?", // 10007
"Invalid member: `%s.%s'.", // 10008
"Trying to access `%s.%s', but `%1$s' is a %3$s", // 10009
"Attempting to access `%s.%s', but `%1$s' is not a vector or rotation.", // 10010
"Passing %s as argument %d of `%s' which is declared as `%s %s'.", // 10011
"Too many arguments to function `%s'.", // 10012
"Too few arguments to function `%s'.", // 10013
"Functions cannot change state.", // 10014
"`%s %s' assigned a %s value.", // 10015
"%s member assigned %s value (must be float or integer).", // 10016
"Event handlers cannot return a value.", // 10017
"Returning a %s value from a %s function.", // 10018
"%s", // Syntax error, bison includes all the info. // 10019
"Global initializer must be constant.", // 10020
"Expression and constant without operator.", // 10021
"State must have at least one event handler.", // 10022
"", // 10023
"", // 10024
"", // 10025
"Not all code paths return a value.", // 10026
"Declaring `%s' as parameter %d of `%s' which should be `%s %s'.", // 10027
"Too many parameters for event `%s'.", // 10028
"Too few parameters for event `%s'.", // 10029
"`%s' is not a valid event name.", // 10030
"`%s' is %s name, and cannot be used as a%s name.", // 10031
"Multiple handlers for event `%s'.", // 10032
"break statement must be inside a switch statement.", // 10033
"Multiple default labels for switch statement.", // 10034
"Case type incompatible with switch type.", // 10035
"Declaration needs braces {}.", // 10036
"`%s' requires god mode. Use lslint -G to enable god mode.", // 10037
"Lists can't contain lists.", // 10038
"Label `%s' already defined in this function or event prevents saving"
" the program", // 10039
"Uninitialized variables can't be included in lists in LSO", // 10040
};
const char *Logger::warning_messages[] = {
"WARN", // 20000
"Declaration of `%s' in this scope shadows previous declaration at (%d, %d)", // 20001
"Suggest parentheses around assignment used as truth value.", // 20002
"Changing state to current state acts the same as return. (SL1.8.3)\n"
"If this is what you intended, consider using return instead.", // 20003
"Changing state in a list or string function will corrupt the stack.\n"
"Using the return value from this function will cause a run-time bounds check error.\n"
"See: http://lsl.project.zone/lsl/language/state#hacks", // 20004
"Using an if statement to change state in a function is a hack and may have unintended side-effects.\n"
"See: http://lsl.project.zone/lsl/language/state#hacks", // 20005
"Multiple jumps for label `%s' - only the last will execute.", // 20006
"Empty if statement.", // 20007
"", // 20008
"%s `%s' declared but never used.", // 20009
"Using == on lists only compares lengths.\n"
"See: http://wiki.secondlife.com/wiki/List#Comparing_Lists", // 20010
"Condition is always true.", // 20011
"Condition is always false.", // 20012
"", // 20013 (unused)
"Unused event parameter `%s'.", // 20014
"Statements before the first case label won't be executed.", // 20015
"Switch statement expression is constant.", // 20016
"No default label in switch; that may cause the statement to misbehave.\n"
"See: https://jira.phoenixviewer.com/browse/FIRE-17710", // 20017
"Duplicate case label.", // 20018
"Prefixing a string with L will cause a double quote (\")\n"
"to be inserted at the beginning of the string.", // 20019
"print does nothing. Attempting to use the result %s.\n", // 20020
"In LSO, (list)%s_var can result in a variable of type %s in the list."
" Use [%s_var] instead.", // 20021
"Label `%s' already defined in this function or event may cause"
" unexpected behaviour (jumps will go to the last label found)",// 20022
"Initializing a global key or string using an uninitialized"
" variable causes a runtime error when accessing it", // 20023
};