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* Cleanup exception handlingSimon Hausmann2013-10-031-1/+0
| | | | | | | | | | The code in the Exception class operates entirely on the engine's data, so move it into ExecutionEngine instead. This eliminates the need for a QV4::Exception class and catches and old code that tries to still do catch (Exception &) instead of catch (...) Change-Id: Ie608bec6af652038aca6c9423c225a4d7eb13b39 Reviewed-by: Lars Knoll <[email protected]>
* Change exception handling APISimon Hausmann2013-10-021-8/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch changes the exception handling API in the engine slightly, encapsulating any use of direct throw statements and catch blocks with concrete types. In the future we need to be able to change the way these are implemented, in order to ensure that the correct stack unwinding code is triggered for throw and re-throw. This patch separates the C++ exception object thrown from the V4 exception (that includes value, throwing context pointer) and stores the latter inside the engine. In order for that to compile, ExecutionEngine::StackTrace and StackFrame had to move into the QV4 namespace directly. In addition the syntax for catching exceptions changes from try { ... } catch (QV4::Exception &ex) { ex.accept(context); QV4::ScopedValue exceptionValue(scope, ex.value()); } to try { ... } catch (...) { QV4::ScopedValue exception(scope, context->catchException()); } Context::catchException() checks if there's a "current" exception in the engine, and if not assumes that we caught an unrelated exception and consequently re-throws. partiallyUnwind() is also gone and replaced with rethrowException(), in order to encapsulate the re-throw. Lastly, in the future nesting try/catch blocks isn't going to be possible due to limitations in the common C++ ABI with regards to foreign exceptions. Change-Id: Ic81c75b057a2147e3176d8e0b4d326c14278b47d Reviewed-by: Lars Knoll <[email protected]>
* Fix a few more uses of ValueLars Knoll2013-09-281-13/+16
| | | | | Change-Id: Ib34a348d6091cc5f0a624a3f80569a08c7c78989 Reviewed-by: Simon Hausmann <[email protected]>
* Move Value::fromBool, ... to a new Primitive classLars Knoll2013-09-281-9/+9
| | | | | | | | This will simplify finding the remaining direct usages of QV4::Value that need fixing. Change-Id: I223099727436d5748027c84c53d9dfc4028e38ed Reviewed-by: Simon Hausmann <[email protected]>
* Fix CallContext to not hold arguments on the C stack anymoreLars Knoll2013-09-281-4/+4
| | | | | Change-Id: I35f46cce4f243d4b8b2bac9244f8fc26836f413b Reviewed-by: Simon Hausmann <[email protected]>
* Fix Persistent/WeakValue APILars Knoll2013-09-261-11/+13
| | | | | | | Don't use unprotected Values in the API anymore. Change-Id: I8851628227fca374de24701bc8ee0908b5ae3923 Reviewed-by: Simon Hausmann <[email protected]>
* convert Managed::put() API to be GC safeLars Knoll2013-09-221-13/+15
| | | | | Change-Id: I09198ce372fa545372db389fac26828d21ad5731 Reviewed-by: Simon Hausmann <[email protected]>
* Further work towards an exact GCLars Knoll2013-09-221-2/+3
| | | | | | | | | | | Add some more convenience in the helper classes in qscopedvalue_p.h Make accesses to CallData safer, and change ExecutionEngine::newObject() to return a safe pointer. Change-Id: I980909754ce9681cf6faa1355bab3a1e5d6dd186 Reviewed-by: Simon Hausmann <[email protected]>
* Convert more methods to return a Returned<>Lars Knoll2013-09-181-4/+3
| | | | | Change-Id: If294c9c4f574824c308b63a11da1337226180105 Reviewed-by: Simon Hausmann <[email protected]>
* Convert most remaining return values from Value to ReturnedValueLars Knoll2013-09-181-4/+4
| | | | | Change-Id: If8b0c3b91be50678693868c10fefc3678008834d Reviewed-by: Simon Hausmann <[email protected]>
* Convert more methods to use ReturnedValueLars Knoll2013-09-181-6/+10
| | | | | | | Change Exception.value() and a few other places. Change-Id: I53ce17e5656e260138b1ac7f6d467e4636c0a0b9 Reviewed-by: Simon Hausmann <[email protected]>
* Convert builtin methods to return a ReturnedValueLars Knoll2013-09-181-3/+3
| | | | | Change-Id: I6b75adbf53a5be0deab023d2eed98ce2a7915551 Reviewed-by: Simon Hausmann <[email protected]>
* Rename QV4::ValueScope to QV4::ScopeLars Knoll2013-09-181-1/+1
| | | | | | | | The class is going to be used all over the place, so let's give it a short name :) Change-Id: If61543cb2c885e7fbb95c8fc4d0e870097c352ed Reviewed-by: Simon Hausmann <[email protected]>
* Require a ValueScope for ScopedCallData as wellLars Knoll2013-09-181-1/+2
| | | | | | | | This brings things more in line with ScopedValue, and also simplifies cleanup of Scoped values. Change-Id: If5f1466b4e13c629d56c1e7c638937f61ba48f77 Reviewed-by: Simon Hausmann <[email protected]>
* Use a ReturnedValue when converting to String or ObjectLars Knoll2013-09-121-1/+1
| | | | | | | | Also rename Value::toQString() to Value::toQStringNoThrow(), and add a throwing toQString() method for JS use. Change-Id: I821b33fc61abb7d08839df965fd337685f61a545 Reviewed-by: Simon Hausmann <[email protected]>
* Move CallData onto the JS stackLars Knoll2013-09-111-4/+5
| | | | | Change-Id: I22e853acfd2da337344b581bb0412c5f9930c510 Reviewed-by: Simon Hausmann <[email protected]>
* change calling convention for JS function callsLars Knoll2013-09-021-2/+4
| | | | | | | | | | | | This allows faster pass through of the data if we have nested calls. Also make sure we always reserve at least QV4::Global::ReservedArgumentCount Values on the stack to avoid stack corruption. Change-Id: I42976460f1ef11a333d4adda70fba8daac66acf3 Reviewed-by: Simon Hausmann <[email protected]>
* Restructure source codeLars Knoll2013-08-081-0/+232
Move the v4 engine classes from a subdir of qml/qml into two subdirs (compiler and jsruntime) of the qml module Remove an unsued qv4syntaxchecker class, and move the moth code directly into compiler. Change-Id: I6929bede1f25098e6cb2e68087e779fac16b0c68 Reviewed-by: Simon Hausmann <[email protected]>
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