Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(613)

Side by Side Diff: src/execution.cc

Issue 6233: Removed the print, load, quit and version extensions from the VM. Moved the p... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 12 years, 2 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch | Annotate | Revision Log
« no previous file with comments | « src/execution.h ('k') | src/serialize.cc » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
1 // Copyright 2006-2008 the V8 project authors. All rights reserved. 1 // Copyright 2006-2008 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
(...skipping 486 matching lines...) Expand 10 before | Expand all | Expand 10 after
497 is_global.location() }; 497 is_global.location() };
498 bool caught_exception = false; 498 bool caught_exception = false;
499 Handle<Object> result = TryCall(Top::get_stack_trace_line_fun(), 499 Handle<Object> result = TryCall(Top::get_stack_trace_line_fun(),
500 Top::builtins(), argc, args, 500 Top::builtins(), argc, args,
501 &caught_exception); 501 &caught_exception);
502 if (caught_exception || !result->IsString()) return Factory::empty_symbol(); 502 if (caught_exception || !result->IsString()) return Factory::empty_symbol();
503 return Handle<String>::cast(result); 503 return Handle<String>::cast(result);
504 } 504 }
505 505
506 506
507 // --- P r i n t E x t e n s i o n ---
508
509 const char* PrintExtension::kSource = "native function print();";
510
511
512 v8::Handle<v8::FunctionTemplate> PrintExtension::GetNativeFunction(
513 v8::Handle<v8::String> str) {
514 return v8::FunctionTemplate::New(PrintExtension::Print);
515 }
516
517
518 v8::Handle<v8::Value> PrintExtension::Print(const v8::Arguments& args) {
519 for (int i = 0; i < args.Length(); i++) {
520 if (i != 0) printf(" ");
521 v8::HandleScope scope;
522 v8::Handle<v8::Value> arg = args[i];
523 v8::Handle<v8::String> string_obj = arg->ToString();
524 if (string_obj.IsEmpty()) return string_obj;
525 int length = string_obj->Length();
526 uint16_t* string = NewArray<uint16_t>(length + 1);
527 string_obj->Write(string);
528 for (int j = 0; j < length; j++)
529 printf("%lc", string[j]);
530 DeleteArray(string);
531 }
532 printf("\n");
533 return v8::Undefined();
534 }
535
536
537 static PrintExtension kPrintExtension;
538 v8::DeclareExtension kPrintExtensionDeclaration(&kPrintExtension);
539
540
541 // --- L o a d E x t e n s i o n ---
542
543 const char* LoadExtension::kSource = "native function load();";
544
545
546 v8::Handle<v8::FunctionTemplate> LoadExtension::GetNativeFunction(
547 v8::Handle<v8::String> str) {
548 return v8::FunctionTemplate::New(LoadExtension::Load);
549 }
550
551
552 v8::Handle<v8::Value> LoadExtension::Load(const v8::Arguments& args) {
553 v8::Handle<v8::String> path = args[0]->ToString();
554
555 // Create a handle for the result. Keep the result empty to be
556 // useful as the return value in case of exceptions.
557 v8::Handle<Value> result;
558
559 if (path.IsEmpty()) return result; // Exception was thrown in ToString.
560
561 // Check that the length of the file name is within bounds.
562 static const int kMaxPathLength = 255;
563 if (path->Length() > kMaxPathLength) {
564 v8::Handle<v8::String> message = v8::String::New("Path name too long");
565 v8::ThrowException(v8::Exception::RangeError(message));
566 return result;
567 }
568
569 // Convert the JavaScript string path into a C string and read the
570 // corresponding script from the file system.
571 char path_buffer[kMaxPathLength + 1];
572 path->WriteAscii(path_buffer);
573 bool exists;
574 Vector<const char> script = ReadFile(path_buffer, &exists, false);
575
576 // Find the base file name from the path.
577 char* file_name_buffer = path_buffer;
578 for (char* p = path_buffer; *p; p++) {
579 if (*p == '/' || *p == '\\') file_name_buffer = p + 1;
580 }
581
582 // Throw an exception in case the script couldn't be read.
583 if (script.is_empty()) {
584 static const char* kErrorPrefix = "Unable to read from file ";
585 static const size_t kErrorPrefixLength = 25; // strlen is not constant
586 ASSERT(strlen(kErrorPrefix) == kErrorPrefixLength);
587 static const int kMaxErrorLength = kMaxPathLength + kErrorPrefixLength;
588 EmbeddedVector<char, kMaxErrorLength + 1> error_buffer;
589 OS::SNPrintF(error_buffer, "%s%s", kErrorPrefix, file_name_buffer);
590 v8::Handle<v8::String> error =
591 v8::String::New(error_buffer.start(), error_buffer.length());
592 v8::ThrowException(v8::Exception::Error(error));
593 return result;
594 }
595
596 // Convert the file name buffer into a script origin
597 v8::ScriptOrigin origin =
598 v8::ScriptOrigin(v8::String::New(file_name_buffer));
599
600 // Compile and run script.
601 v8::Handle<v8::String> source =
602 v8::String::New(script.start(), script.length());
603 v8::Handle<v8::Script> code =
604 v8::Script::Compile(source, &origin);
605
606 // Run the code if no exception occurred during the compilation. In
607 // case of syntax errors, the code is empty and the exception is
608 // scheduled and will be thrown when returning to JavaScript.
609 if (!code.IsEmpty()) result = code->Run();
610 script.Dispose();
611 return result;
612 }
613
614
615 static LoadExtension kLoadExtension;
616 v8::DeclareExtension kLoadExtensionDeclaration(&kLoadExtension);
617
618
619 // --- Q u i t E x t e n s i o n ---
620
621 const char* QuitExtension::kSource = "native function quit();";
622
623
624 v8::Handle<v8::FunctionTemplate> QuitExtension::GetNativeFunction(
625 v8::Handle<v8::String> str) {
626 return v8::FunctionTemplate::New(QuitExtension::Quit);
627 }
628
629
630 v8::Handle<v8::Value> QuitExtension::Quit(const v8::Arguments& args) {
631 exit(args.Length() == 0 ? 0 : args[0]->Int32Value());
632 return v8::Undefined();
633 }
634
635
636 static QuitExtension kQuitExtension;
637 v8::DeclareExtension kQuitExtensionDeclaration(&kQuitExtension);
638
639
640 // --- V e r s i o n E x t e n s i o n ---
641
642 static Extension kVersionExtension("v8/version",
643 "function version(){ return 150; }");
644 v8::DeclareExtension kVersionExtensionDeclaration(&kVersionExtension);
645
646
647 // --- G C E x t e n s i o n --- 507 // --- G C E x t e n s i o n ---
648 508
649 const char* GCExtension::kSource = "native function gc();"; 509 const char* GCExtension::kSource = "native function gc();";
650 510
651 511
652 v8::Handle<v8::FunctionTemplate> GCExtension::GetNativeFunction( 512 v8::Handle<v8::FunctionTemplate> GCExtension::GetNativeFunction(
653 v8::Handle<v8::String> str) { 513 v8::Handle<v8::String> str) {
654 return v8::FunctionTemplate::New(GCExtension::GC); 514 return v8::FunctionTemplate::New(GCExtension::GC);
655 } 515 }
656 516
657 517
658 v8::Handle<v8::Value> GCExtension::GC(const v8::Arguments& args) { 518 v8::Handle<v8::Value> GCExtension::GC(const v8::Arguments& args) {
659 // All allocation spaces other than NEW_SPACE have the same effect. 519 // All allocation spaces other than NEW_SPACE have the same effect.
660 Heap::CollectGarbage(0, OLD_DATA_SPACE); 520 Heap::CollectGarbage(0, OLD_DATA_SPACE);
661 return v8::Undefined(); 521 return v8::Undefined();
662 } 522 }
663 523
664 524
665 static GCExtension kGCExtension; 525 static GCExtension kGCExtension;
666 v8::DeclareExtension kGCExtensionDeclaration(&kGCExtension); 526 v8::DeclareExtension kGCExtensionDeclaration(&kGCExtension);
667 527
668 } } // namespace v8::internal 528 } } // namespace v8::internal
OLDNEW
« no previous file with comments | « src/execution.h ('k') | src/serialize.cc » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698