Ejs *ejsCreateVM(int argc, cchar **argv, int flags)
{
EjsService *sp;
Ejs *ejs;
if ((ejs = mprAllocObj(Ejs, manageEjs)) == NULL) {
return 0;
}
sp = ejs->service = MPR->ejsService;
if (sp == 0) {
sp = ejs->service = createService();
defineSharedTypes(ejs);
}
ejs->empty = 1;
ejs->state = mprAllocZeroed(sizeof(EjsState));
ejs->argc = argc;
ejs->argv = argv;
ejs->name = sfmt("ejs-%d", sp->seqno++);
ejs->dispatcher = mprCreateDispatcher(ejs->name, MPR_DISPATCHER_ENABLED);
ejs->mutex = mprCreateLock(ejs);
ejs->dontExit = sp->dontExit;
ejs->flags |= (flags & (EJS_FLAG_NO_INIT | EJS_FLAG_DOC | EJS_FLAG_HOSTED));
ejs->hosted = (flags & EJS_FLAG_HOSTED) ? 1 : 0;
ejs->global = ejsCreateBlock(ejs, 0);
mprSetName(ejs->global, "global");
ejsDefineGlobalNamespaces(ejs);
/*
Modules are not marked in the modules list. This way, modules are collected when not referenced.
Workers are marked. This way workers are preserved to run in the background until they exit.
*/
ejs->modules = mprCreateList(-1, MPR_LIST_STATIC_VALUES);
ejs->workers = mprCreateList(0, 0);
initStack(ejs);
initSearchPath(ejs, 0);
mprAddItem(sp->vmlist, ejs);
if (ejs->hasError || mprHasMemError(ejs)) {
ejsDestroyVM(ejs);
mprError("Cannot create VM");
return 0;
}
mprLog(5, "ejs: create VM");
return ejs;
}
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;
}
