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lslmini.cc
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#include <stdio.h>
#include <string>
#include "lslmini.hh"
#include "logger.hh"
// Workaround for makeless builds
#ifndef VERSION
#define VERSION "0.4.3-xh"
#endif
#ifndef BUILD_DATE
#include <time.h>
#endif
// For Wed 04/20/2016
// we had "04/2-/2-16"
// NOTE: I'm not too sure why we should do this. Free free to properly implement. - Xenhat
//#define BUILD_DATE " asdasdsadsa"
// Get current date/time, format is MM-DD-YYYY
std::string getBuildDate() {
// I hope this works for you guys
#ifdef BUILD_DATE
return static_cast<std::string>(BUILD_DATE);
#else
return "2017-01-25";
// This will do for now - Xenhat
/*
time_t now = time(0);
struct tm tstruct;
char buf[80];
tstruct = *localtime(&now);
// Visit http://en.cppreference.com/w/cpp/chrono/c/strftime
// for more information about date/time format
strftime(buf, sizeof(buf), "%m/%d/%Y", &tstruct);
return buf;
*/
#endif
}
extern FILE *yyin;
extern const char *builtins_file;
//extern int yynerrs;
int yynwarns = 0; // not defined by flex but named for consistency
int yyparse(void*);
//int yyerror(const char *fmt, ... );
//int yywarning(const char *fmt, ...);
YYLTYPE LLASTNode::glloc = {0,0,0,0};
const char *DEPRECATED_FUNCTIONS[][2] = {
{"llSoundPreload", "llPreloadSound"},
{"llSound", "llPlaySound, llLoopSound, or llTriggerSound"},
{"llMakeExplosion", "llParticleSystem"},
{"llMakeFire", "llParticleSystem"},
{"llMakeFountain", "llParticleSystem"},
{"llMakeSmoke", "llParticleSystem"},
{"llRemoteLoadScript","llRemoteLoadScriptPin and llSetRemoteScriptAccessPin"},
{"llXorBase64Strings","llXorBase64"},
{"llXorBase64StringsCorrect", "llXorBase64"},
{"llRemoteDataSetRegion", "llOpenRemoteDataChannel"},
{"llSetPrimURL", "llSetPrimMediaParams"},
{"llRefreshPrimURL", "llSetPrimMediaParams"},
{"llTakeCamera", "llSetCameraParams"},
{"llReleaseCamera", "llClearCameraParams"},
{"llPointAt", NULL},
{"llStopPointAt", NULL},
{"llCloud", NULL},
{"llClearExperiencePermissions", NULL},
{"llCollisionSprite", NULL},
{"llGetExperienceList", NULL},
{NULL, NULL}
};
const char *GOD_MODE_FUNCTIONS[] = {
"llGodLikeRezObject",
"llSetInventoryPermMask",
"llSetObjectPermMask",
NULL
};
static int walklevel = 0;
bool mono_mode = true;
bool skip_preproc = false;
bool warn_unused_evparam = false;
bool switch_stmt = false;
bool lazy_lists = false;
bool override_fn = false;
bool god_mode = false;
void print_walk( char *str ) {
int i;
for ( i = 0; i < walklevel ; i++ )
printf(" ");
printf("%s\n", str);
}
void do_walk( LLASTNode *node ) {
walklevel++;
node->walk();
walklevel--;
}
void LLASTNode::add_children( int num, va_list ap ) {
LLASTNode *node;
for ( ; num--; ) {
node = va_arg(ap, LLASTNode*);
if ( node == NULL )
node = new LLASTNullNode();
push_child( node );
}
}
void LLASTNode::walk() {
LLASTNode *child = children;
char buf[256];
sprintf(buf, "%s [%s] (cv=%s) (%d,%d)", get_node_name(), type ? type->get_node_name() : NULL, constant_value ? constant_value->get_node_name() : NULL, lloc.first_line, lloc.first_column );
print_walk(buf);
//print_walk(get_node_name());
if ( child == NULL ) return;
if ( child->get_prev() != NULL ) {
printf("first child %s has non-null prev %s\n", child->get_node_name(), child->get_prev()->get_node_name() );
exit(1);
}
while ( child ) {
do_walk(child);
child = child->get_next();
}
}
// Lookup a symbol, propagating up the tree until it is found.
LLScriptSymbol *LLASTNode::lookup_symbol(const char *name, LLSymbolType type, bool is_case_sensitive) {
LLScriptSymbol *sym = NULL;
// If we have a symbol table of our own, look for it there
if ( symbol_table )
sym = symbol_table->lookup( name, type, is_case_sensitive );
// If we have no symbol table, or it wasn't in it, but we have a parent, ask them
if ( (sym == NULL || (type == SYM_VARIABLE && !sym->was_declared())) && parent )
sym = parent->lookup_symbol( name, type, is_case_sensitive );
return sym;
}
// Define a symbol, propagating up the tree to the nearest scope level.
void LLASTNode::define_symbol(LLScriptSymbol *symbol) {
// If we have a symbol table, define it there
if ( symbol_table ) {
LLScriptSymbol *shadow;
DEBUG( LOG_DEBUG_SPAM, NULL, "symbol definition caught in %s\n", get_node_name() );
// Check if already defined
shadow = symbol_table->lookup( symbol->get_name() );
// Override?
if ( shadow // warning: testing shadow first is important
&& (override_fn
|| (lazy_lists && !strcmp(shadow->get_name(), "lazy_list_set")))
&& shadow->get_symbol_type() == SYM_FUNCTION
&& shadow->get_sub_type() != SYM_BUILTIN ) {
script->get_symbol_table()->remove(shadow);
delete shadow;
shadow = NULL;
}
if ( shadow ) {
if (shadow->get_symbol_type() == SYM_EVENT) {
ERROR( IN(symbol), E_DUPLICATE_DECLARATION_BUILTIN, symbol->get_name(), "an event", " function" );
} else if (shadow->get_symbol_type() == SYM_FUNCTION && shadow->get_sub_type() == SYM_BUILTIN) {
ERROR( IN(symbol), E_DUPLICATE_DECLARATION_BUILTIN, symbol->get_name(), "a library function", " user function" );
} else {
ERROR( IN(symbol), E_DUPLICATE_DECLARATION, symbol->get_name(), shadow->get_lloc()->first_line, shadow->get_lloc()->first_column );
}
} else {
bool ok_to_define = true;
// Check for shadowed declarations
if ( parent ) {
shadow = parent->lookup_symbol(symbol->get_name(), SYM_ANY);
if ( shadow != NULL ) {
if (shadow->get_sub_type() == SYM_BUILTIN) {
// Events and constants are reserved; functions aren't.
if (shadow->get_symbol_type() == SYM_EVENT) {
ok_to_define = false;
ERROR( IN(symbol), E_WRONG_TYPE, symbol->get_name(),
LLScriptSymbol::get_type_name(symbol->get_symbol_type()),
"n", "event" );
} else if (shadow->get_symbol_type() == SYM_VARIABLE) {
ok_to_define = false;
ERROR( IN(symbol), E_WRONG_TYPE, symbol->get_name(),
LLScriptSymbol::get_type_name(symbol->get_symbol_type()),
"", "constant");
}
} else if (shadow->get_symbol_type() == symbol->get_symbol_type()) {
ERROR( IN(symbol), W_SHADOW_DECLARATION, symbol->get_name(), LINECOL(shadow->get_lloc()) );
}
}
}
if (ok_to_define) {
symbol_table->define(symbol);
}
}
// Otherwise, ask our parent to define it
} else if ( parent ) {
parent->define_symbol(symbol);
// .. but if we don't have a parent, we're in trouble.
} else {
throw "nowhere to define symbol!";
}
}
// Define any symbols we have, and ask our children to
void LLASTNode::collect_symbols() {
LLASTNode *child = children;
define_symbols();
while ( child ) {
child->collect_symbols();
child = child->get_next();
}
}
void LLASTNode::define_symbols() {
/* nothing */
}
void LLScriptDeclaration::define_symbols() {
LLNodeSubType type = get_parent()->get_node_sub_type();
if ( type == NODE_IF_STATEMENT || type == NODE_FOR_STATEMENT
|| type == NODE_DO_STATEMENT || type == NODE_WHILE_STATEMENT) {
ERROR( HERE, E_DECLARATION_NOT_ALLOWED );
// fall through to define the symbol anyway (issue #73)
}
LLScriptIdentifier *identifier = (LLScriptIdentifier *)get_children();
identifier->set_symbol( new LLScriptSymbol(identifier->get_name(), identifier->get_type(), SYM_VARIABLE, SYM_LOCAL, identifier->get_lloc()) );
define_symbol(identifier->get_symbol());
}
void LLScriptGlobalVariable::define_symbols() {
LLScriptIdentifier *identifier = (LLScriptIdentifier *)get_children();
identifier->set_symbol( new LLScriptSymbol(identifier->get_name(), identifier->get_type(), SYM_VARIABLE, SYM_GLOBAL, identifier->get_lloc()));
define_symbol(identifier->get_symbol());
identifier->get_symbol()->set_global();
// if it's initialized, set its constant value
if ( get_child(1)->get_node_type() == NODE_SIMPLE_ASSIGNABLE )
identifier->get_symbol()->set_constant_value( get_child(1)->get_child(0)->get_constant_value() );
}
void LLScriptState::define_symbols() {
LLASTNode *node = get_children();
LLScriptIdentifier *identifier;
if ( node->get_node_type() == NODE_NULL ) // null identifier = default state, nothing to define
return;
identifier = (LLScriptIdentifier *)node;
identifier->set_symbol( new LLScriptSymbol(identifier->get_name(), identifier->get_type(), SYM_STATE, SYM_GLOBAL, identifier->get_lloc()) );
define_symbol( identifier->get_symbol() );
}
void LLScriptGlobalFunction::define_symbols() {
LLScriptIdentifier *identifier = (LLScriptIdentifier *)get_child(0);
// define function in parent scope since we have our own
identifier->set_symbol(
new LLScriptSymbol( identifier->get_name(), identifier->get_type(), SYM_FUNCTION, SYM_GLOBAL, identifier->get_lloc(), (LLScriptFunctionDec*)get_child(1) )
);
get_parent()->define_symbol(identifier->get_symbol());
}
void LLScriptFunctionDec::define_symbols() {
LLScriptIdentifier *identifier;
LLASTNode *node = get_children();
while (node) {
identifier = (LLScriptIdentifier *)node;
identifier->set_symbol( new LLScriptSymbol( identifier->get_name(), identifier->get_type(), SYM_VARIABLE, SYM_FUNCTION_PARAMETER, node->get_lloc() ) );
define_symbol( identifier->get_symbol() );
identifier->get_symbol()->set_declared();
node = node->get_next();
}
}
void LLScriptEventDec::define_symbols() {
LLScriptIdentifier *identifier;
LLASTNode *node = get_children();
while (node) {
identifier = (LLScriptIdentifier *)node;
identifier->set_symbol( new LLScriptSymbol( identifier->get_name(), identifier->get_type(), SYM_VARIABLE, SYM_EVENT_PARAMETER, node->get_lloc() ) );
define_symbol( identifier->get_symbol() );
identifier->get_symbol()->set_declared();
node = node->get_next();
}
}
void LLScriptLabel::define_symbols() {
LLScriptIdentifier *identifier = (LLScriptIdentifier*)get_children();
identifier->set_symbol( new LLScriptSymbol(identifier->get_name(), identifier->get_type(), SYM_LABEL, SYM_LOCAL, identifier->get_lloc()) );
define_symbol( identifier->get_symbol() );
// Define it also in the function or event if it does not exist
LLASTNode *fn = get_parent();
while (fn && fn->get_node_type() != NODE_GLOBAL_FUNCTION && fn->get_node_type() != NODE_EVENT_HANDLER) {
fn = fn->get_parent();
}
if (!fn) {
printf("Label not inside a function or event - this should not happen!");
exit(1);
}
LabelMap *labels;
if (fn->get_node_type() == NODE_GLOBAL_FUNCTION)
labels = &((LLScriptGlobalFunction *)fn)->labels;
else
labels = &((LLScriptEventHandler *)fn)->labels;
std::string label = std::string(identifier->get_name());
if (labels->find(label) != labels->end()) {
if (mono_mode)
ERROR( IN(identifier), E_DUPLICATE_LABEL_MONO, identifier->get_name() );
else
ERROR( IN(identifier), W_DUPLICATE_LABEL_LSO, identifier->get_name() );
} else {
labels->insert(label);
}
}
// walk tree post-order and propagate types
void LLASTNode::propagate_types() {
LLASTNode *node = get_children();
while ( node ) {
node->propagate_types();
node = node->get_next();
}
determine_type();
}
void LLASTNode::determine_type() {
if ( type == NULL ) type = LLScriptType::get( LST_NULL );
}
static const char* operation_str(int operation) {
static char buf[16+1];
switch (operation) {
case EQ: return "==";
case NEQ: return "!=";
case POSTINC_OP:
case INC_OP: return "++";
case POSTDEC_OP:
case DEC_OP: return "--";
case BOOLEAN_AND: return "&&";
case BOOLEAN_OR: return "||";
case SHIFT_LEFT: return "<<";
case SHIFT_RIGHT: return ">>";
default:
if ( isprint(operation) ) {
buf[0] = operation;
buf[1] = 0;
} else {
sprintf(buf, "%d", operation);
}
return (const char *)buf;
}
}
void LLScriptExpression::determine_type() {
if ( operation == 0 ) type = get_child(0)->get_type();
else {
type = get_child(0)->get_type()->get_result_type( operation, get_child(1) ? get_child(1)->get_type() : NULL );
if ( type == NULL ) {
if (get_child(1)) {
// Binary operator
ERROR( HERE, E_INVALID_OPERATOR, get_child(0)->get_type()->get_node_name(), " ", operation_str(operation), " ", get_child(1)->get_type()->get_node_name() );
} else if (operation == POSTINC_OP || operation == POSTDEC_OP) {
// Unary postfix operator
ERROR( HERE, E_INVALID_OPERATOR, get_child(0)->get_type()->get_node_name(), " ", operation_str(operation), "", "" );
} else {
// Unary prefix operator
ERROR( HERE, E_INVALID_OPERATOR, operation_str(operation), " ", get_child(0)->get_type()->get_node_name(), "", "" );
}
// Assign a reasonable type based on operation
LST_TYPE t = operation == EQ ? LST_INTEGER :
operation == NEQ ? LST_INTEGER :
operation == '<' ? LST_INTEGER :
operation == '>' ? LST_INTEGER :
operation == GEQ ? LST_INTEGER :
operation == LEQ ? LST_INTEGER :
operation == '!' ? LST_INTEGER :
operation == '~' ? LST_INTEGER :
operation == '^' ? LST_INTEGER :
operation == '&' ? LST_INTEGER :
operation == '|' ? LST_INTEGER :
operation == SHIFT_LEFT ? LST_INTEGER :
operation == SHIFT_RIGHT ? LST_INTEGER :
operation == BOOLEAN_AND ? LST_INTEGER :
operation == BOOLEAN_OR ? LST_INTEGER :
LST_NULL;
type = t == LST_NULL ? get_child(0)->get_type() : new LLScriptType(t);
} else {
if ( operation == '=' || operation == INC_OP || operation == DEC_OP || operation == POSTINC_OP || operation == POSTDEC_OP ) {
// unused variable // LLASTNode *last_node = this;
// unused variable // LLASTNode *node = get_parent();
// add assignment
if ( get_child(0)->get_node_sub_type() == NODE_LVALUE_EXPRESSION && get_child(0)->get_child(0)->get_node_type() == NODE_IDENTIFIER ) {
LLScriptIdentifier *id = (LLScriptIdentifier*)get_child(0)->get_child(0);
if ( id->get_symbol() ) {
if (id->get_symbol()->get_sub_type() == SYM_BUILTIN) {
ERROR( HERE, E_WRONG_TYPE, id->get_symbol()->get_name(),
"variable", "", "constant");
}
id->get_symbol()->add_assignment();
}
}
}
}
}
}
static void find_suggestions(LLScriptIdentifier *id, char *buffer) {
// look for typos
// FIXME: this is mostly hacked together and unsafe (bp can overrun buffer, cur_sug can overrun suggestions)
// maybe a better way would be to go through all the symtabs looking for names within a certain "string distance"
char *bp;
const char *suggestions[16];
int cur_sug = 0;
int i;
const char *name = id->get_name();
LLScriptSymbol *symbol = id->get_symbol();
for ( i = 16; i--; )
suggestions[i] = NULL;
// try case insensitive
symbol = id->lookup_symbol( name, SYM_ANY, false );
if ( symbol != NULL )
suggestions[cur_sug++] = symbol->get_name();
if ( strstr(name, "To") ) {
// try replacing "To" with "2"
for (i = 0, bp = buffer; name[i]; i++) {
if ( (name[i] == 'T' || name[i] == 't') && (name[i+1] == 'O' || name[i+1] == 'o')) {
*bp++ = '2'; i++;
} else
*bp++ = name[i];
}
*bp = 0;
symbol = id->lookup_symbol( buffer, SYM_ANY, false );
if ( symbol != NULL )
suggestions[cur_sug++] = symbol->get_name();
}
// try replacing "2" with "To"
if ( strstr(name, "2") ) {
for (i = 0, bp = buffer; name[i]; i++) {
if ( name[i] == '2') {
*bp++ = 'T'; *bp++ = 'o';
} else
*bp++ = name[i];
}
*bp = 0;
symbol = id->lookup_symbol( buffer, SYM_ANY, false );
if ( symbol != NULL )
suggestions[cur_sug++] = symbol->get_name();
}
for (i = 0, buffer[0] = 0; suggestions[i] != NULL; i++ ) {
// add comma if not first
if ( i != 0 ) {
strncat(buffer, ", ", BUFFER_SIZE);
// add "or" if not last
if ( suggestions[i+1] == NULL )
strncat(buffer, "or ", BUFFER_SIZE);
}
strncat(buffer, "`", BUFFER_SIZE);
strncat(buffer, suggestions[i], BUFFER_SIZE);
strncat(buffer, "'", BUFFER_SIZE);
}
}
/// Identifiers should have their type/symbol set by their parent node, because they don't know what
/// kind of symbol they represent by themselves. For example, this should work:
// string test() { return "hi"; }
// string func() {
// integer test = 1;
// llOwnerSay(test());
// }
// But if "test" looked itself up, it would think it is an integer. Its parent function
// expression node can tell it what it needs to be before determining its own type.
void LLScriptIdentifier::resolve_symbol(LLSymbolType symbol_type, bool is_simple) {
// If we already have a symbol, we don't need to look it up.
/*
// Should never happen: no reason to ever have visited this node
// before during this tree walk.
if ( symbol != NULL ) {
type = symbol->get_type();
return;
}
*/
// If it's a builtin, check for deprecation/godmode
if ( symbol_type == SYM_FUNCTION ) {
int i;
for ( i = 0; DEPRECATED_FUNCTIONS[i][0]; ++i ) {
if ( !strcmp(name, DEPRECATED_FUNCTIONS[i][0]) ) {
if ( DEPRECATED_FUNCTIONS[i][1] == NULL ) {
ERROR(HERE, E_DEPRECATED, name);
} else {
ERROR(HERE, E_DEPRECATED_WITH_REPLACEMENT, name, DEPRECATED_FUNCTIONS[i][1]);
}
symbol = NULL;
type = TYPE(LST_ERROR);
return;
}
}
if (!god_mode) {
for ( i = 0; GOD_MODE_FUNCTIONS[i]; ++i ) {
if ( !strcmp(name, GOD_MODE_FUNCTIONS[i]) ) {
ERROR(HERE, E_GOD_MODE_FUNCTION, name);
symbol = NULL;
type = TYPE(LST_ERROR);
return;
}
}
}
}
// Look up the symbol with the requested type
symbol = lookup_symbol( name, symbol_type );
bool visible = true;
// At this point, we have all symbols defined, but some are not legal.
// Check the cases where we should report an error even if it already
// exists in the symbol table.
if ( symbol && symbol_type == SYM_VARIABLE && !symbol->was_declared()
&& (!symbol->is_global() || is_simple) ) {
visible = false;
}
if ( symbol == NULL || !visible) { // no symbol of the right type
symbol = lookup_symbol( name, SYM_ANY ); // so try the wrong one, so we can have a more descriptive error message in that case.
if ( symbol && symbol_type == SYM_VARIABLE && !symbol->was_declared()
&& (!symbol->is_global() || is_simple) ) {
visible = false;
}
if ( symbol != NULL && visible ) {
if (symbol->get_symbol_type() == SYM_EVENT) {
ERROR( HERE, E_WRONG_TYPE, name,
LLScriptSymbol::get_type_name(symbol_type),
"n", "event"
);
} else {
ERROR( HERE, E_WRONG_TYPE, name,
LLScriptSymbol::get_type_name(symbol_type),
"", LLScriptSymbol::get_type_name(symbol->get_symbol_type()));
}
} else if (symbol_type != SYM_EVENT) { // if it's an event, don't report undefined identifier
char buffer[BUFFER_SIZE+1];
buffer[0] = 0;
// check that the symbol really does not exist,
// otherwise we get: "x is undeclared, did you mean x?"
// for symbols that already exist but are not visible
if (!symbol) {
find_suggestions(this, buffer);
}
if ( buffer[0] == 0 ) {
ERROR( HERE, E_UNDECLARED, name );
} else {
ERROR( HERE, E_UNDECLARED_WITH_SUGGESTION, name, buffer );
}
}
// Set our symbol to null and type to error since we don't know what they should be.
symbol = NULL;
type = TYPE(LST_ERROR);
return;
}
/// If we're requesting a member, like var.x or var.y
if ( member != NULL ) {
// all members must be single letters
if ( member[1] != 0 ) {
ERROR( HERE, E_INVALID_MEMBER, name, member );
type = TYPE(LST_ERROR);
return;
}
// Make sure it's a variable
if ( symbol_type != SYM_VARIABLE ) {
ERROR( HERE, E_MEMBER_NOT_VARIABLE, name, member, LLScriptSymbol::get_type_name(symbol_type));
symbol = NULL;
type = TYPE(LST_ERROR);
return;
}
// Make sure it's a vector or quaternion. TODO: is there a better way to do this?
switch ( symbol->get_type()->get_itype() ) {
case LST_QUATERNION:
if ( member[0] == 's' ) {
type = TYPE(LST_FLOATINGPOINT);
break;
}
// FALL THROUGH
case LST_VECTOR:
switch ( member[0] ) {
case 'x':
case 'y':
case 'z':
type =TYPE(LST_FLOATINGPOINT);
break;
default:
ERROR( HERE, E_INVALID_MEMBER, name, member );
type = TYPE(LST_ERROR);
break;
}
break;
default:
ERROR( HERE, E_MEMBER_WRONG_TYPE, name, member );
type = TYPE(LST_ERROR);
break;
}
} else {
// Set our type to our symbol's type.
type = symbol->get_type();
}
// Add a reference
symbol->add_reference();
}
void LLScriptSimpleAssignable::determine_type() {
LLASTNode *node = get_child(0);
if ( node == NULL )
return;
if ( node->get_node_type() == NODE_IDENTIFIER ) {
LLScriptIdentifier *id = (LLScriptIdentifier *) node;
id->resolve_symbol( SYM_VARIABLE, true );
type = id->get_type();
} else if ( node->get_node_type() == NODE_CONSTANT ) {
type = node->get_type();
}
}
void LLScriptFunctionExpression::determine_type() {
LLScriptIdentifier *id = (LLScriptIdentifier *) get_child(0);
id->resolve_symbol( SYM_FUNCTION );
type = id->get_type();
// can't check types if function is undeclared
if ( id->get_symbol() == NULL )
return;
// check argument types
LLScriptFunctionDec *function_decl;
LLScriptIdentifier *declared_param_id;
LLScriptIdentifier *passed_param_id;
int param_num = 1;
function_decl = id->get_symbol()->get_function_decl();
declared_param_id = (LLScriptIdentifier*) function_decl->get_children();
passed_param_id = (LLScriptIdentifier*) get_child(1);
while ( declared_param_id != NULL && passed_param_id != NULL ) {
if ( !passed_param_id->get_type()->can_coerce(
declared_param_id->get_type()) ) {
ERROR( IN(passed_param_id), E_ARGUMENT_WRONG_TYPE,
passed_param_id->get_type()->get_node_name(),
param_num,
id->get_name(),
declared_param_id->get_type()->get_node_name(),
declared_param_id->get_name()
);
return;
}
passed_param_id = (LLScriptIdentifier*) passed_param_id->get_next();
declared_param_id = (LLScriptIdentifier*) declared_param_id->get_next();
++param_num;
}
if ( passed_param_id != NULL ) {
ERROR( IN(passed_param_id), E_TOO_MANY_ARGUMENTS, id->get_name() );
} else if ( declared_param_id != NULL ) {
ERROR( HERE, E_TOO_FEW_ARGUMENTS, id->get_name() );
}
}
void LLScriptLValueExpression::determine_type() {
LLScriptIdentifier *id = (LLScriptIdentifier *) get_child(0);
id->resolve_symbol( SYM_VARIABLE );
if ( id->get_symbol() != NULL && id->get_symbol()->get_sub_type() == SYM_BUILTIN && id->get_member() != NULL ) {
ERROR( HERE, E_INVALID_MEMBER, id->get_name(), id->get_member() );
}
type = id->get_type();
}
void LLScriptStateStatement::determine_type() {
LLScriptIdentifier *id = (LLScriptIdentifier *) get_child(0);
type = TYPE(LST_NULL);
if ( id != NULL )
id->resolve_symbol( SYM_STATE );
// see if we're in a state or function, and if it's allowed
bool state_allowed = false;
LLASTNode *node = NULL;
for ( node = get_parent(); node; node = node->get_parent() ) {
switch (node->get_node_type()) {
case NODE_STATEMENT:
switch (node->get_node_sub_type()) {
case NODE_DO_STATEMENT:
case NODE_FOR_STATEMENT:
case NODE_WHILE_STATEMENT:
state_allowed = true;
break;
case NODE_IF_STATEMENT:
if (node->get_child(2) == NULL || node->get_child(2)->get_node_type() == NODE_NULL) {
state_allowed = true;
}
break;
default:
break;
}
break;
case NODE_STATE:
// we're in a state, see if it's the same one we're calling
if (
// in default and calling state default
(node->get_child(0)->get_node_type() == NODE_NULL && id == NULL) ||
(
// make sure neither current nor target is default
(id != NULL && node->get_child(0)->get_node_type() ==
NODE_IDENTIFIER) &&
// in state x calling state x
!strcmp( ((LLScriptIdentifier*)node->get_child(0))->get_name(),
id->get_name() )
)
) {
ERROR( HERE, W_CHANGE_TO_CURRENT_STATE );
}
return;
case NODE_GLOBAL_FUNCTION:
if ( state_allowed ) {
if ( mono_mode ) {
ERROR( HERE, W_CHANGE_STATE_HACK );
} else {
// see what kind of function it is
switch (node->get_child(0)->get_type()->get_itype()) {
case LST_LIST:
case LST_STRING:
ERROR( HERE, W_CHANGE_STATE_HACK_CORRUPT );
break;
default:
ERROR( HERE, W_CHANGE_STATE_HACK );
break;
}
}
} else {
ERROR( HERE, E_CHANGE_STATE_IN_FUNCTION );
}
return;
default:
break;
}
}
LOG( LOG_ERROR, HERE, "INTERNAL ERROR: encountered state change statement "
"not in function or state!" );
}
void LLScriptJumpStatement::determine_type() {
LLScriptIdentifier *id = (LLScriptIdentifier *) get_child(0);
id->resolve_symbol( SYM_LABEL );
type = id->get_type();
if ( !mono_mode && id->get_symbol() != NULL && id->get_symbol()->get_references() == 2 ) {
ERROR( HERE, W_MULTIPLE_JUMPS_FOR_LABEL, id->get_symbol()->get_name() );
}
}
void LLScriptGlobalVariable::determine_type() {
LLScriptIdentifier *id = (LLScriptIdentifier *) get_child(0);
if ( id->get_symbol() ) id->get_symbol()->set_declared();
LLASTNode *node = get_child(1);
if ( node == NULL || node->get_node_type() == NODE_NULL ) return;
if ( !node->get_type()->can_coerce(id->get_type()) ) {
ERROR( HERE, E_WRONG_TYPE_IN_ASSIGNMENT, id->get_type()->get_node_name(),
id->get_name(), node->get_type()->get_node_name() );
}
if (!mono_mode) {
LST_TYPE type = id->get_type()->get_itype();
LLASTNode *val_node = get_child(1)->get_child(0);
if (type == LST_STRING || type == LST_KEY) {
if (val_node->get_node_type() == NODE_IDENTIFIER && !((LLScriptIdentifier*)val_node)->get_symbol()->is_initialized()) {
ERROR( IN(val_node), W_UNINITIALIZED_VAR_IN_STR_KEY );
} else {
id->get_symbol()->set_initialized();
}
} else {
id->get_symbol()->set_initialized();
if (val_node->get_node_type() == NODE_CONSTANT && val_node->get_node_sub_type() == NODE_LIST_CONSTANT) {
LLASTNode *elem = ((LLScriptListConstant *)val_node)->get_children();
// Check every element to see if one of them is an uninitialized variable
while (elem && elem->get_node_type() == NODE_SIMPLE_ASSIGNABLE) {
if (elem->get_child(0)->get_node_type() == NODE_IDENTIFIER && ((LLScriptIdentifier *)elem->get_child(0))->get_symbol() && !((LLScriptIdentifier *)elem->get_child(0))->get_symbol()->is_initialized()) {
ERROR( IN(elem->get_child(0)), E_UNINITIALIZED_VAR_IN_LIST );
}
elem = elem->get_next();
}
}
}
}
}
void LLScriptDeclaration::determine_type() {
LLScriptIdentifier *id = (LLScriptIdentifier *) get_child(0);
LLASTNode *node = get_child(1);
if ( id->get_symbol() ) id->get_symbol()->set_declared();
if ( node == NULL || node->get_node_type() == NODE_NULL ) return;
if ( !node->get_type()->can_coerce(id->get_type()) ) {
ERROR( HERE, E_WRONG_TYPE_IN_ASSIGNMENT, id->get_type()->get_node_name(),
id->get_name(), node->get_type()->get_node_name() );
}
}
void LLScriptVectorExpression::determine_type() {
type = TYPE(LST_VECTOR);
LLASTNode *node = get_children();
for ( ; node ; node = node->get_next() ) {
if ( !node->get_type()->can_coerce(TYPE(LST_FLOATINGPOINT)) ) {
ERROR( HERE, E_WRONG_TYPE_IN_MEMBER_ASSIGNMENT, "vector",
node->get_type()->get_node_name() );
return;
}
}
}
void LLScriptVectorConstant::determine_type() {
type = TYPE(LST_VECTOR);
LLASTNode *node = get_children();
for ( ; node ; node = node->get_next() ) {
if ( !node->get_type()->can_coerce(TYPE(LST_FLOATINGPOINT)) ) {
ERROR( HERE, E_WRONG_TYPE_IN_MEMBER_ASSIGNMENT, "vector",
node->get_type()->get_node_name() );
return;
}
}
}
void LLScriptQuaternionExpression::determine_type() {
type = TYPE(LST_QUATERNION);
LLASTNode *node = get_children();
for ( ; node ; node = node->get_next() ) {
if ( !node->get_type()->can_coerce(TYPE(LST_FLOATINGPOINT)) ) {
ERROR( HERE, E_WRONG_TYPE_IN_MEMBER_ASSIGNMENT, "quaternion",
node->get_type()->get_node_name() );
return;
}
}
}
void LLScriptQuaternionConstant::determine_type() {
type = TYPE(LST_QUATERNION);
LLASTNode *node = get_children();
for ( ; node ; node = node->get_next() ) {
if ( !node->get_type()->can_coerce(TYPE(LST_FLOATINGPOINT)) ) {
ERROR( HERE, E_WRONG_TYPE_IN_MEMBER_ASSIGNMENT, "quaternion",
node->get_type()->get_node_name() );
return;
}
}
}
void LLScriptReturnStatement::determine_type() {
LLASTNode *node = get_parent();
// crawl up until we find an event handler or global func
while ( node->get_node_type() != NODE_EVENT_HANDLER &&
node->get_node_type() != NODE_GLOBAL_FUNCTION )
node = node->get_parent();
// if an event handler
if ( node->get_node_type() == NODE_EVENT_HANDLER ) {
// make sure we're not returning anything
if ( get_child(0)->get_node_type() != NODE_NULL ) {
ERROR( HERE, E_RETURN_VALUE_IN_EVENT_HANDLER );
}
} else { // otherwise it's a function
// the return type of the function is stored in the identifier which is
// the first child
if ( !get_child(0)->get_type()->can_coerce(
node->get_child(0)->get_type()) ) {
ERROR( HERE, E_BAD_RETURN_TYPE,
get_child(0)->get_type()->get_node_name(),
node->get_child(0)->get_type()->get_node_name() );
}
}
}
void LLScriptIfStatement::determine_type() {
type = TYPE(LST_NULL);
// warn if main branch is an empty statement and secondary branch is null
// or empty
if ( get_child(1)->get_node_type() == NODE_STATEMENT &&
get_child(1)->get_node_sub_type() == NODE_NO_SUB_TYPE &&
get_child(1)->get_children() == NULL &&
(get_child(2)->get_node_type() == NODE_NULL ||
(get_child(2)->get_node_type() == NODE_STATEMENT &&
get_child(2)->get_node_sub_type() == NODE_NO_SUB_TYPE &&
get_child(2)->get_children() == NULL
)
)
) {
ERROR( IN(get_child(0)), W_EMPTY_IF );
DEBUG( LOG_DEBUG_SPAM, NULL, "TYPE=%d SUBTYPE=%d CHILDREN=%p n=%s\n",
get_child(1)->get_node_type(), get_child(1)->get_node_sub_type(),
get_child(1)->get_children(), get_child(1)->get_node_name() );
// do_walk( this );
}
}
void LLASTNode::check_symbols() {
LLASTNode *node;
if ( get_symbol_table() != NULL )
get_symbol_table()->check_symbols();
for ( node = get_children(); node; node = node->get_next() )
node->check_symbols();
}
void usage(const char *name) {
printf("Usage: %s [options] [input]\n", name);
printf("Options: \n");
printf("\t-m\t\tFlag: Use Mono rules for the analysis (default on)\n");
printf("\t-b <file>\tLoad builtin functions from file\n");
printf("\t-t\t\tShow tree structure.\n");
printf("\t-l\t\tShow line/column information as range\n");
printf("\t-p\t\tAdd the file path to the result\n");
printf("\t-v\t\tBe verbose\n");
printf("\t-S\t\tDon't sort log messages\n");
printf("\t-#\t\tShow error codes (for debugging/testing)\n");
printf("\t-A\t\tCheck error assertions (for debugging/testing)\n");
printf("\t-a\t\tFlag: Don't report marked warnings/errors (default on)\n");
printf("\t-i\t\tFlag: Ignore preprocessor directives (default off)\n");
printf("\t-u\t\tFlag: Warn about unused event parameters (default off)\n");
printf("\t-w\t\tFlag: Enable switch statements (default off)\n");
printf("\t-z\t\tFlag: Enable lazy list syntax (default off)\n");
printf("\t-G\t\tFlag: Enable god mode (default off)\n");
#ifdef COMPILE_ENABLED
printf("\t-c\t\tFlag: Compile (default off)\n");
#endif /* COMPILE_ENABLED */
printf("\t-V\t\tPrint long version info and exit.\n");
printf("\t--version\tPrint short version info and exit.\n");
printf("\t--help\t\tPrint this help text and exit.\n");
printf("\n");
printf("Options that are flags can have a - sign at the end to disable them\n");
printf("(e.g. -m- to disable Mono and enable LSO)\n");
return;
}
void version() {
/*
fprintf(stderr, "lslint " VERSION " by masa, built " BUILD_DATE "\n");
fprintf(stderr, "by using this program you agree to smile :o)\n");
*/
fprintf(stderr, " lcllok ;....; ccc:\n");
fprintf(stderr, " ,dNWX0xolodddd:.','''..:OXWWX::\n");
fprintf(stderr, " ::WMMMMMMMMMMMN;.,'.....':xkxx:, =] W-Hat KReW PreZentZ [=\n");
fprintf(stderr, " :,0WMMMMMMMMMMN;','...',,'...'..\n");
fprintf(stderr, " .cNMMMMMMMMMMMK:,,;;.',,'...,,', lslint %s\n", VERSION);
fprintf(stderr, " ,dWMMMMMMMMMMMMMMWWWMKdl,...''..\n");
fprintf(stderr, " ,lWMMMMMMMMMMMMMMMMMMMMMMNo,'':o CODiNG::\n");