Mozilla/mozilla/js/tamarin/shell/DomainClass.cpp

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 * The Original Code is [Open Source Virtual Machine.].
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#include "avmshell.h"

namespace avmshell
{
	BEGIN_NATIVE_MAP(DomainClass)
		NATIVE_METHOD(avmplus_Domain_Domain, DomainObject::constructFromDomain)
		NATIVE_METHOD(avmplus_Domain_loadBytes, DomainObject::loadBytes)
		NATIVE_METHOD(avmplus_Domain_currentDomain_get, DomainClass::get_currentDomain)
		NATIVE_METHOD(avmplus_Domain_getClass, DomainObject::getClass)
	END_NATIVE_MAP()
	
	DomainObject::DomainObject(VTable *vtable, ScriptObject *delegate)
		: ScriptObject(vtable, delegate)
	{
	}

	DomainObject::~DomainObject()
	{
	}

	void DomainObject::constructFromDomain(DomainObject *parentDomain)
	{
		Shell *core = (Shell*) this->core();

		Domain* baseDomain;
		if (parentDomain) {
			baseDomain = parentDomain->domainEnv->getDomain();
		} else {
			baseDomain = core->builtinDomain;
		}
		
		Domain* domain = new (core->GetGC()) Domain(core, baseDomain);

		if (parentDomain) {
			domainToplevel = parentDomain->domainToplevel;
		} else {
			domainToplevel = core->initShellBuiltins();
		}
		
		domainEnv = new (core->GetGC()) DomainEnv(core, domain, parentDomain->domainEnv);
	}

	Atom DomainObject::loadBytes(ByteArrayObject *b)
	{
		AvmCore* core = this->core();
		if (!b)
			toplevel()->throwTypeError(kNullArgumentError, core->toErrorString("bytes"));

		ShellCodeContext* codeContext = new (core->GetGC()) ShellCodeContext();
		codeContext->domainEnv = domainEnv;

		// parse new bytecode
		size_t len = b->get_length();
		ScriptBuffer code = core->newScriptBuffer(len);
		memcpy(code.getBuffer(), &b->GetByteArray()[0], len); 
		Toplevel *toplevel = domainToplevel;
		return core->handleActionBlock(code, 0,
								  domainEnv,
								  toplevel,
								  NULL, NULL, NULL, codeContext);
	}

	ScriptObject* DomainObject::finddef(Multiname* multiname,
										DomainEnv* domainEnv)
	{
		Toplevel* toplevel = this->toplevel();

		ScriptEnv* script = (ScriptEnv*) domainEnv->getScriptInit(multiname);
		if (script == (ScriptEnv*)BIND_AMBIGUOUS)
            toplevel->throwReferenceError(kAmbiguousBindingError, multiname);

		if (script == (ScriptEnv*)BIND_NONE)
            toplevel->throwReferenceError(kUndefinedVarError, multiname);

		if (script->global == NULL)
		{
			script->initGlobal();
			Atom argv[1] = { script->global->atom() };
			script->coerceEnter(0, argv);
		}

		return script->global;
	}
	
	ClassClosure* DomainObject::getClass(Stringp name)
	{
		AvmCore *core = this->core();

		if (name == NULL) {
			toplevel()->throwArgumentError(kNullArgumentError, core->toErrorString("name"));
		}
			
		// Search for a dot from the end.
		int dot;
		for (dot=name->length()-1; dot >= 0; dot--)
			if ((*name)[dot] == (wchar)'.')
				break;
		
		// If there is a '.', this is a fully-qualified
		// class name in a package.  Must turn it into
		// a namespace-qualified multiname.
		Namespace* ns;
		Stringp className;
		if (dot != -1) {
			Stringp uri = core->internString(new (core->GetGC()) String(name, 0, dot));
			ns = core->internNamespace(core->newNamespace(uri));
			className = core->internString(new (core->GetGC()) String(name, dot+1, name->length()-(dot+1)));
		} else {
			ns = core->publicNamespace;
			className = core->internString(name);
		}

		Multiname multiname(ns, className);

		ShellCodeContext* codeContext = (ShellCodeContext*)core->codeContext();
		
		ScriptObject *container = finddef(&multiname, codeContext->domainEnv);
		if (!container) {
			toplevel()->throwTypeError(kClassNotFoundError, core->toErrorString(&multiname));
		}
		Atom atom = toplevel()->getproperty(container->atom(),
											&multiname,
											container->vtable);

		if (!core->istype(atom, core->traits.class_itraits)) {
			toplevel()->throwTypeError(kClassNotFoundError, core->toErrorString(&multiname));
		}			
		return (ClassClosure*)AvmCore::atomToScriptObject(atom);
	}

	DomainClass::DomainClass(VTable *cvtable)
		: ClassClosure(cvtable)
	{
		createVanillaPrototype();
	}

	ScriptObject* DomainClass::createInstance(VTable *ivtable,
											  ScriptObject *prototype)
	{
		return new (core()->GetGC(), ivtable->getExtraSize()) DomainObject(ivtable, prototype);
	}

	DomainObject* DomainClass::get_currentDomain()
	{
		ShellCodeContext* codeContext = (ShellCodeContext*)core()->codeContext();

		DomainObject* domainObject = (DomainObject*) createInstance(ivtable(), prototype);
		domainObject->domainEnv = codeContext->domainEnv;
		domainObject->domainToplevel = toplevel();
		
		return domainObject;
	}
}