static SymPtr FieldReference(SymPtr clas)
{
SymPtr field,parent;
char *fieldname;
SkipToken(tPERIOD);
fieldname = GetIdent();
/* lookup field in class and parents */
parent=clas;
while( parent!=NULL )
{
field = SymFindLocal(fieldname,parent);
if( field!=NULL ) break;
parent = parent->super;
}
if( field==NULL )
{
compileError("field '%s' not found",fieldname);
return NULL;
}
field->flags |= SYM_FIELD; /* MCC */
if( field->flags&SYM_PRIVATE )
{
compileError("attempt to access private field '%s'",fieldname);
return NULL;
}
if( field->flags&SYM_PROTECTED && !in_class )
{
compileError("attempt to access protected field '%s'",fieldname);
return NULL;
}
NextToken();
if( is_func_kind(field) )
{
return field;
}
if( is_global_kind(clas) )
{
vm_genI(op_getglobal,clas->num);
}
else if( is_local_kind(clas) )
{
vm_genI(op_getlocal,clas->num);
}
return field;
}
static SymPtr LookupIdent(char **name)
{
SymPtr sym=NULL,parent;
/* check this class only */
if( in_class && Token==tSELF )
{
SkipToken(tSELF);
SkipToken(tPERIOD);
*name = GetIdent();
sym = SymFindLevel(*name,(SymGetScope()-1));
}
/* check super class only */
else if( in_class && Token==tSUPER && base_class->super!=NULL )
{
SkipToken(tSUPER);
SkipToken(tPERIOD);
*name = GetIdent();
sym = SymFindLocal(*name,base_class->super);
if( sym!=NULL && sym->flags&SYM_PRIVATE )
{
compileError("attempt to access private field '%s'",*name);
NextToken();
return COMPILE_ERROR;
}
}
/* check all super classes */
else if( in_class )
{
*name = GetIdent();
parent=base_class->super;
while(parent!=NULL)
{
sym = SymFindLocal(*name,parent);
if(sym!=NULL) break;
parent=parent->super;
}
if( sym!=NULL && sym->flags&SYM_PRIVATE )
{
compileError("attempt to access private field '%s'",*name);
NextToken();
return COMPILE_ERROR;
}
}
/* check globals */
if( sym==NULL )
{
*name = GetIdent();
sym = SymFind(*name);
}
return sym;
}
Int32 parse(Pointer prog,Int32 size)
{
break_num=0;
setlocal_num=0;
return_num=0;
in_class=FALSE;
in_method=FALSE;
cur_scope=SYM_PUBLIC;
local_num=0;
global_num=0;
base_class=NULL;
super_class=NULL;
new_class=NULL;
compile_error=FALSE;
ScnInit(prog,size);
if( Token==tERROR || Token==tEOF )
{
compileError("EOF detected");
}
else
{
compile_error=FALSE;
SymInit();
Program();
SymFree();
}
return compile_error;
}
static void PrivateStatement(void)
{
SkipToken(tPRIVATE);
cur_scope=SYM_PRIVATE;
if(!in_class || in_method)
{
compileError("private only valid inside a class definition");
}
}
static void ProtectedStatement(void)
{
SkipToken(tPROTECTED);
cur_scope=SYM_PROTECTED;
if(!in_class || in_method)
{
compileError("protected only valid inside a class definition");
}
}
static void PublicStatement(void)
{
SkipToken(tPUBLIC);
cur_scope=SYM_PUBLIC;
if(!in_class || in_method)
{
compileError("public only valid inside a class definition");
}
}
static void FunctionCall(SymPtr sym,SymPtr clas)
{
Int32 argc;
/* push retval */
vm_genI(op_pushint,0);
/* push args */
argc = 0;
if( xstrcmp(sym->name,NEW)!=0 )
{
argc = ActualParams();
}
if( sym->nargs != -1 )
{
if( sym->nargs != argc )
{
compileError("wrong number of arguments in function call");
}
}
/* push class if necessary */
if( clas!=NULL )
{
argc++;
if( is_global_kind(clas) )
{
vm_genI(op_getglobal,clas->num);
}
else if( is_local_kind(clas) )
{
vm_genI(op_getlocal,clas->num);
}
}
else if( in_class && sym->clas!=NULL )
{
argc++;
vm_genI(op_getlocal,-2);
}
/* push argc */
vm_genI(op_pushint,argc);
/* call the function */
if( sym->kind==FUNCTION_KIND )
{
vm_genI(op_jsr,sym->object.u.ival);
}
else if( sym->kind==CFUNCTION_KIND )
{
vm_genI(op_call,sym->index);
}
}
static void LibraryStatement(void)
{
char *libname;
SkipToken(tLIBRARY);
if( Token==tSTRINGCONST )
{
libname=GetString();
LibLoad(libname); /* ignored in console version */
NextToken();
}
else
compileError("expected library name");
}
ScriptErrorWidget::ScriptErrorWidget(QWidget *parent) :
QDockWidget(parent),
ui(new Ui::ScriptErrorWidget)
{
ui->setupUi(this);
connect(HilecSingleton::hilec(), SIGNAL(compileError(ScriptCompileInfo)), SLOT(updateCompileError(ScriptCompileInfo)));
mErrorIcons[ScriptCompileProblem::Error] = QIcon(":/ProjectEditor/exclamation.png");
mErrorIcons[ScriptCompileProblem::Warning] = QIcon(":/ProjectEditor/error.png");
mErrorIcons[ScriptCompileProblem::Info] = QIcon(":/ProjectEditor/information.png");
mModeEnabled[ScriptCompileProblem::Info] = false;
mModeEnabled[ScriptCompileProblem::Warning] = true;
mModeEnabled[ScriptCompileProblem::Error] = true;
ui->enableErrors->setChecked(mModeEnabled[ScriptCompileProblem::Error]);
ui->enableWarnings->setChecked(mModeEnabled[ScriptCompileProblem::Warning]);
ui->enableInfos->setChecked(mModeEnabled[ScriptCompileProblem::Info]);
}
bool DuckCompiler::compile(const QString &code, QByteArray *data)
{
QStringList lines = code.split(QRegExp("\\n"));
currentLine = 0;
int errorCount = 0;
int processedCount = 0;
QString prevInstruction;
QString prevArgument;
foreach (QString line, lines) {
currentLine++;
int defaultDelay = DEFAULT_DELAY;
int repeat = 0;
QString cleanLine = line.trimmed();
if (!cleanLine.isEmpty() && !cleanLine.startsWith("//")) {
QStringList instructions = cleanLine.split(QRegExp("\\s"));
const QString &instruction = instructions[0];
const QString & argument = instructions.length() == 2 ? instructions[1].trimmed() : "";
if (instruction == "REM") {
continue;
}
bool ok = processInstruction(instruction, argument, data, &repeat, &defaultDelay);
if (ok) {
if (repeat > 0 && (prevInstruction.isEmpty() || prevInstruction == "REPEAT" || currentLine == 1)) {
emit compileError(currentLine, 0, QString(tr("unable to repeat previous instruction")));
errorCount++;
continue;
}
processedCount++;
while (ok && repeat > 0) {
repeat--;
ok = processInstruction(prevInstruction, prevArgument, data);
}
prevInstruction = instruction;
prevArgument = argument;
} else {
errorCount++;
}
}
}
static int compileInner(EcCompiler *cp, int argc, char **argv)
{
Ejs *ejs;
EjsModule *mp;
MprList *nodes;
EjsBlock *block;
EcLocation loc;
cchar *ext;
char *msg;
int next, i, j, nextModule, lflags, rc, paused;
ejs = cp->ejs;
if ((nodes = mprCreateList(-1, 0)) == 0) {
return EJS_ERR;
}
cp->nodes = nodes;
/*
Warn about source files mentioned multiple times.
TODO OPT. This is slow.
*/
for (i = 0; i < argc; i++) {
for (j = 0; j < argc; j++) {
if (i == j) {
continue;
}
if (mprSamePath(argv[i], argv[j])) {
compileError(cp, "Loading source %s multiple times. Ignoring extra copies.", argv[i]);
return EJS_ERR;
}
}
if (cp->outputFile && mprSamePath(cp->outputFile, argv[i])) {
compileError(cp, "Output file is the same as input file: %s", argv[i]);
return EJS_ERR;
}
}
/*
Compile source files and load any module files
*/
for (i = 0; i < argc && !cp->fatalError; i++) {
ext = mprGetPathExt(argv[i]);
if (scasecmp(ext, "mod") == 0 || scasecmp(ext, BIT_SHOBJ) == 0) {
nextModule = mprGetListLength(ejs->modules);
lflags = cp->strict ? EJS_LOADER_STRICT : 0;
if ((rc = ejsLoadModule(cp->ejs, ejsCreateStringFromAsc(ejs, argv[i]), -1, -1, lflags)) < 0) {
msg = sfmt("Error initializing module %s\n%s", argv[i], ejsGetErrorMsg(cp->ejs, 1));
memset(&loc, 0, sizeof(EcLocation));
loc.filename = sclone(argv[i]);
if (rc == MPR_ERR_CANT_INITIALIZE) {
ecError(cp, "Error", &loc, msg);
} else {
ecError(cp, "Error", &loc, msg);
}
cp->nodes = NULL;
return EJS_ERR;
}
if (cp->merge) {
/*
If merging, we must emit the loaded module into the output. So add to the compiled modules list.
*/
for (next = nextModule; (mp = mprGetNextItem(ejs->modules, &next)) != 0; ) {
if (mprLookupItem(cp->modules, mp) < 0 && mprAddItem(cp->modules, mp) < 0) {
compileError(cp, "Can't add module %s", mp->name);
}
}
}
mprAddItem(nodes, 0);
} else {
mprAssert(!MPR->marking);
paused = ejsBlockGC(ejs);
mprAddItem(nodes, ecParseFile(cp, argv[i]));
ejsUnblockGC(ejs, paused);
}
mprAssert(!MPR->marking);
}
mprAssert(ejs->result == 0 || (MPR_GET_GEN(MPR_GET_MEM(ejs->result)) != MPR->heap->dead));
/*
Allocate the eval frame stack. This is used for property lookups. We have one dummy block at the top always.
*/
block = ejsCreateBlock(ejs, 0);
mprSetName(block, "Compiler");
ejsPushBlock(ejs, block);
/*
Process the internal representation and generate code
*/
paused = ejsBlockGC(ejs);
if (!cp->parseOnly && cp->errorCount == 0) {
ecResetParser(cp);
if (ecAstProcess(cp) < 0) {
ejsPopBlock(ejs);
cp->nodes = NULL;
ejsUnblockGC(ejs, paused);
return EJS_ERR;
}
if (cp->errorCount == 0) {
ecResetParser(cp);
if (ecCodeGen(cp) < 0) {
ejsPopBlock(ejs);
cp->nodes = NULL;
ejsUnblockGC(ejs, paused);
return EJS_ERR;
}
}
}
ejsPopBlock(ejs);
mprAssert(ejs->result == 0 || (MPR_GET_GEN(MPR_GET_MEM(ejs->result)) != MPR->heap->dead));
/*
Add compiled modules to the interpreter
*/
for (next = 0; ((mp = (EjsModule*) mprGetNextItem(cp->modules, &next)) != 0); ) {
ejsAddModule(cp->ejs, mp);
}
cp->nodes = NULL;
ejsUnblockGC(ejs, paused);
if (!paused) {
mprYield(0);
}
mprAssert(ejs->result == 0 || (MPR_GET_GEN(MPR_GET_MEM(ejs->result)) != MPR->heap->dead));
return (cp->errorCount > 0) ? EJS_ERR: 0;
}
bool AssignmentThread::traditionalTaskPrepare()
{
compileState = NoValidSourceFile;
QDir contestantDir = QDir(Settings::sourcePath() + contestantName);
QList<Compiler*> compilerList = settings->getCompilerList();
for (int i = 0; i < compilerList.size(); i ++) {
if (task->getCompilerConfiguration(compilerList[i]->getCompilerName()) == "disable") continue;
QStringList filters = compilerList[i]->getSourceExtensions();
for (int j = 0; j < filters.size(); j ++) {
filters[j] = task->getSourceFileName() + "." + filters[j];
}
QStringList files = contestantDir.entryList(filters, QDir::Files);
sourceFile = "";
for (int j = 0; j < files.size(); j ++) {
qint64 fileSize = QFileInfo(Settings::sourcePath() + contestantName + QDir::separator() + files[j]).size();
if (fileSize <= settings->getFileSizeLimit() * 1024) {
sourceFile = files[j];
break;
}
}
if (! sourceFile.isEmpty()) {
QDir(Settings::temporaryPath()).mkdir(contestantName);
QFile::copy(Settings::sourcePath() + contestantName + QDir::separator() + sourceFile,
Settings::temporaryPath() + contestantName + QDir::separator() + sourceFile);
QStringList configurationNames = compilerList[i]->getConfigurationNames();
QStringList compilerArguments = compilerList[i]->getCompilerArguments();
QStringList interpreterArguments = compilerList[i]->getInterpreterArguments();
QString currentConfiguration = task->getCompilerConfiguration(compilerList[i]->getCompilerName());
for (int j = 0; j < configurationNames.size(); j ++) {
if (configurationNames[j] == currentConfiguration) {
timeLimitRatio = compilerList[i]->getTimeLimitRatio();
memoryLimitRatio = compilerList[i]->getMemoryLimitRatio();
disableMemoryLimitCheck = compilerList[i]->getDisableMemoryLimitCheck();
environment = compilerList[i]->getEnvironment();
QStringList values = environment.toStringList();
for (int k = 0; k < values.size(); k ++) {
int tmp = values[k].indexOf("=");
QString variable = values[k].mid(0, tmp);
environment.insert(variable,
environment.value(variable) + ";"
+ QProcessEnvironment::systemEnvironment().value(variable));
}
if (compilerList[i]->getCompilerType() == Compiler::Typical) {
#ifdef Q_OS_WIN32
executableFile = task->getSourceFileName() + ".exe";
#endif
#ifdef Q_OS_LINUX
executableFile = task->getSourceFileName();
#endif
interpreterFlag = false;
} else {
executableFile = compilerList[i]->getInterpreterLocation();
arguments = interpreterArguments[j];
arguments.replace("%s.*", sourceFile);
arguments.replace("%s", task->getSourceFileName());
interpreterFlag = true;
}
if (compilerList[i]->getCompilerType() != Compiler::InterpretiveWithoutByteCode) {
QString arguments = compilerArguments[j];
arguments.replace("%s.*", sourceFile);
arguments.replace("%s", task->getSourceFileName());
QProcess *compiler = new QProcess(this);
compiler->setProcessChannelMode(QProcess::MergedChannels);
compiler->setProcessEnvironment(environment);
compiler->setWorkingDirectory(Settings::temporaryPath() + contestantName);
compiler->start(QString("\"") + compilerList[i]->getCompilerLocation() + "\" " + arguments);
if (! compiler->waitForStarted(-1)) {
compileState = InvalidCompiler;
delete compiler;
break;
}
QElapsedTimer timer;
timer.start();
bool flag = false;
while (timer.elapsed() < settings->getCompileTimeLimit()) {
if (compiler->state() != QProcess::Running) {
flag = true;
break;
}
QCoreApplication::processEvents();
if (stopJudging) {
compiler->kill();
delete compiler;
return false;
}
msleep(10);
}
if (! flag) {
compiler->kill();
compileState = CompileTimeLimitExceeded;
} else
if (compiler->exitCode() != 0) {
compileState = CompileError;
compileMessage = QString::fromLocal8Bit(compiler->readAllStandardOutput().data());
} else {
if (compilerList[i]->getCompilerType() == Compiler::Typical) {
if (! QDir(Settings::temporaryPath() + contestantName).exists(executableFile)) {
compileState = InvalidCompiler;
} else {
compileState = CompileSuccessfully;
}
} else {
QStringList filters = compilerList[i]->getBytecodeExtensions();
for (int k = 0; k < filters.size(); k ++) {
filters[k] = QString("*.") + filters[k];
}
if (QDir(Settings::temporaryPath() + contestantName)
.entryList(filters, QDir::Files).size() == 0) {
compileState = InvalidCompiler;
} else {
compileState = CompileSuccessfully;
}
}
}
delete compiler;
}
if (compilerList[i]->getCompilerType() == Compiler::InterpretiveWithoutByteCode)
compileState = CompileSuccessfully;
break;
}
}
break;
}
}
if (compileState != CompileSuccessfully) {
emit compileError(task->getTotalTimeLimit(), (int)compileState);
return false;
}
return true;
}
static void ClassDefinition(void)
{
char *name;
Int32 label,l1;
Int32 field_num=0;
SymPtr clas,clas_init;
SkipToken(tCLASS);
MatchToken(tCONST);
name = GetIdent();
clas = SymAdd(name);
clas->kind = CLASS_KIND;
NextToken();
in_class=TRUE;
base_class=clas;
cur_scope=SYM_PUBLIC;
/* clas->super=NULL; */
/* super_class=NULL; */
clas->super=SymFind("Object");
super_class=clas->super;
if( Token==tLSS )
{
SkipToken(tLSS);
MatchToken(tCONST);
name = GetIdent();
clas->super = SymFind(name);
if( clas->super==NULL )
{
compileError("super class not found");
return;
}
super_class = clas->super;
field_num = clas->super->nlocs;
NextToken();
}
SymEnterScope();
/* default class constructor prologue */
l1 = vm_genI(op_link,0);
clas_init = SymAdd(NEW);
clas_init->kind = FUNCTION_KIND;
clas_init->object.u.ival = l1;
clas_init->flags |= SYM_PUBLIC;
/* class fields and functions */
while( TokenIn(class_statements) )
{
if( Token==tPUBLIC )
{
PublicStatement();
}
else if( Token==tPROTECTED )
{
ProtectedStatement();
}
else if( Token==tPRIVATE )
{
PrivateStatement();
}
else if( Token==tDEF )
{
label = vm_genI(op_jmp,0);
MethodDefinition();
vm_patch(label,vm_addr());
}
else
{
local_num = field_num++;
AssignmentStatement();
}
if( Token==tSEMI ) SkipToken(tSEMI);
}
clas->nlocs = field_num;
/* default class constructor epilogue */
vm_gen0(op_nop);
vm_genI(op_rts,2);
SymExitScope(clas);
/* end of class */
in_class=FALSE;
base_class=NULL;
super_class=NULL;
SkipToken(tEND);
if( Token==tSEMI ) SkipToken(tSEMI);
}
static Int32 Rhs(void)
{
char *name=NULL;
SymPtr sym,clas=NULL;
sym = LookupIdent(&name);
if( sym == COMPILE_ERROR )
{
return INT_TYPE;
}
NextToken();
if( sym==NULL )
{
compileError("invalid identifier '%s'",name);
return INT_TYPE;
}
/* check for field access */
if( Token==tPERIOD )
{
if( in_class && !in_method )
{
compileError("cannot initialize fields with objects");
return INT_TYPE;
}
clas = sym;
sym = FieldReference(clas);
if( sym==NULL )
{
return INT_TYPE;
}
if( xstrcmp(sym->name,NEW)==0 )
{
new_class = clas;
vm_genI(op_newclass,new_class->nlocs);
return CLASS_TYPE;
}
}
switch(sym->kind)
{
case NIL_KIND:
compileError("invalid type");
break;
case GLOBAL_KIND:
vm_genI(op_getglobal,sym->num);
break;
case LOCAL_KIND:
vm_genI(op_getlocal,sym->num);
break;
case CONSTANT_KIND:
switch(sym->object.type)
{
case INT_TYPE:
vm_genI(op_pushint,sym->object.u.ival);
break;
case REAL_TYPE:
vm_genR(op_pushreal,sym->object.u.rval);
break;
case STRING_TYPE:
vm_genS(op_pushstring,sym->object.u.pval);
break;
default:
/* TODO: error */
break;
}
break;
case FUNCTION_KIND:
case CFUNCTION_KIND:
FunctionCall(sym,clas);
break;
case CLASS_KIND:
compileError("invalid type");
break;
case FIELD_KIND:
CheckClassMember(sym);
vm_genI(op_getfield,sym->num);
break;
}
/* check for array access */
if( Token==tLBRACK )
{
/* allow multi-dimensional arrays */
while( Token==tLBRACK )
{
/* valid array is checked at runtime */
SkipToken(tLBRACK);
Expr();
SkipToken(tRBRACK);
vm_gen0(op_getarray);
}
}
return sym->object.type;
}
static SymPtr Lhs(void)
{
char *name=NULL;
SymPtr sym,clas=NULL;
sym = LookupIdent(&name);
if( sym==COMPILE_ERROR )
{
return NULL;
}
NextToken();
/* if a field has the same name as a global, it will override */
if( in_class && SymGetScope()==2 && sym!=NULL )
{
if( sym->kind==GLOBAL_KIND )
{
sym=NULL;
}
}
if( sym==NULL )
{
sym = SymAdd(name);
if( Token==tCONST )
{
sym->flags |= SYM_CONSTANT;
}
if( SymGetScope()==1 )
{
sym->kind = GLOBAL_KIND;
sym->num = global_num++;
}
else
{
/* MCC */
if(in_class && !in_method)
{
sym->kind = FIELD_KIND;
sym->flags |= cur_scope;
sym->clas = base_class;
}
else
{
sym->kind = LOCAL_KIND;
sym->flags = 0;
sym->clas = NULL;
}
sym->num = local_num++;
}
return sym;
}
/* check for field access */
if( Token==tPERIOD )
{
clas = sym;
sym = FieldReference(clas);
if( sym==NULL )
{
return NULL;
}
}
/* check for function call */
if( is_func_kind(sym) )
{
FunctionCall(sym,clas);
vm_gen0(op_pop);
return NULL;
}
/* check for array access */
if( Token==tLBRACK )
{
switch(sym->kind)
{
case GLOBAL_KIND:
vm_genI(op_getglobal,sym->num);
break;
case LOCAL_KIND:
vm_genI(op_getlocal,sym->num);
break;
case CONSTANT_KIND:
switch(sym->object.type)
{
case INT_TYPE:
vm_genI(op_pushint,sym->object.u.ival);
break;
case REAL_TYPE:
vm_genR(op_pushreal,sym->object.u.rval);
break;
case STRING_TYPE:
vm_genS(op_pushstring,sym->object.u.pval);
break;
default:
/* TODO: error */
break;
}
break;
case FIELD_KIND:
CheckClassMember(sym);
vm_genI(op_getfield,sym->num);
break;
default:
compileError("invalid assignment");
break;
}
if( Token==tLBRACK ) /* array */
{
SkipToken(tLBRACK);
Expr();
SkipToken(tRBRACK);
while( Token==tLBRACK )
{
/* handle multi-dimension arrays */
vm_gen0(op_getarray);
SkipToken(tLBRACK);
Expr();
SkipToken(tRBRACK);
}
SkipToken(tEQUALS);
Expr();
vm_gen0(op_setarray);
return NULL;
}
}
return sym;
}
static void AssignmentStatement(void)
{
Int32 type,count;
SymPtr sym,clas_init=NULL;
SymPtr parents[16];
sym = Lhs();
if( sym==NULL )
{
return;
}
CheckClassMember(sym);
SkipToken(tEQUALS);
if(sym->flags&SYM_DEFINED)
{
compileError("cannot reassign constant");
return;
}
else if(sym->flags&SYM_CONSTANT)
{
sym->flags |= SYM_DEFINED;
}
/* CheckClassMember(sym); */
new_class=NULL;
type=Expr();
sym->object.type = type;
switch(sym->kind)
{
case LOCAL_KIND:
vm_genI(op_setlocal,sym->num);
break;
case GLOBAL_KIND:
vm_genI(op_setglobal,sym->num);
break;
case FIELD_KIND:
vm_genI(op_setfield,sym->num);
break;
default:
compileError("invalid assignment");
break;
}
if( type==CLASS_TYPE && new_class != NULL )
{
sym->clas = new_class;
sym->super = new_class->super;
sym->locals = new_class->locals;
/* First build a list of all super classes */
count=0;
clas_init=sym;
while( clas_init!=NULL )
{
parents[count++] = clas_init;
clas_init = clas_init->super;
}
/* Now call all constructors in reverse order */
count--;
while( count>=0 )
{
clas_init = SymFindLocal(NEW,parents[count]);
FunctionCall(clas_init,sym);
vm_gen0(op_pop);
count--;
}
/* call user defined constructor */
clas_init=SymFindLocal("init",sym);
if( clas_init!=NULL )
{
if( (Token==tLPAREN && clas_init->nargs!=0) ||
(Token!=tLPAREN && clas_init->nargs==0) )
{
FunctionCall(clas_init,sym);
vm_gen0(op_pop);
}
}
}
}