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* Fix parsing of js files via Qt.include()Simon Hausmann2018-11-291-1/+1
| | | | | | | | | | | Make sure to parse them as JavaScript, not as QML, so that certain keywords such as char or double map to identifiers as expected. Also removed an unused function. Fixes: QTBUG-71524 Change-Id: Ie8a8dabe717ee12def6af512943e6d01efcf9876 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* JS: Limit expression and statement nesting levelErik Verbruggen2018-11-291-0/+24
| | | | | | | | | This is to prevent extremely deeply nested expressions and statements make the code-generator run out of (native) stack space. Task-number: QTBUG-71087 Change-Id: I8e1a20a361bff3e49101e535754546475a63ca18 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Ensure our builtin constructors are subclassableLars Knoll2018-11-221-0/+43
| | | | | | | | | Respect the newTarget passed into those constructors and make sure we set up the proto chain correctly. Change-Id: I3d12c7dbef4b33660a6715d73e9fb0f89105167a Fixes: QTBUG-71138 Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
* JS: Check pattern target to be an lvalueErik Verbruggen2018-11-191-0/+1
| | | | | Change-Id: If9468b93b08ad355f07d1436ca88e8d36be22070 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* JS: Handle check for dangling jump gracefullyErik Verbruggen2018-11-191-0/+1
| | | | | | | | | | | The destructor for the Jump object will check if it is linked somewhere. So when doing an early-exit after generating a jump (and before linking it) and after an error occurred, make sure to call link anyway. At this point no code will be generated, so where the jump points to is kinda pointless. Change-Id: I09fa03d4224805a838088acd0c5c83d02b328045 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Stop codegen after errorErik Verbruggen2018-11-131-0/+1
| | | | | | | | | | We won't use the bytecode anyway, and it prevents consistency checks that come after the error from failing. Specifically: there might be jumps that have no label defined. Fixes: QTBUG-71738 Change-Id: I62a7e943b0156d42caccfa40507853de79e3b1ce Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
* JS: Fix stack buffer overflow in the QML/JS parserLars Knoll2018-10-181-0/+1
| | | | | | Task-number: QTBUG-71083 Change-Id: I7a06a01871c2ae0b3162699189c4e836c36d7759 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* JS: Check if the rhs of an assignment had errors before using itErik Verbruggen2018-10-151-0/+1
| | | | | Change-Id: I34d70759732433b6f0ecccc5ae175d33ec8e1577 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* JS: Check lhs of an 'in' expression to be an lvalueErik Verbruggen2018-10-151-0/+1
| | | | | | | | | For example: 'for (foo() in something) {}' is not valid: a call expression is not an lvalue. Task-number: QTBUG-71086 Change-Id: Ia1498cd38526b073afb8e4524ceaea14dca3d65f Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Abort parsing on errorLars Knoll2018-10-151-0/+1
| | | | | | | | | | The visit() methods need to return false on parse errors, so that we don't continue iterating into that subtree of the AST, but rather exit as quickly as possible. Task-number: QTBUG-71090 Change-Id: I1912d955a0ffc86389a4cbbb3b6ac0209c3c556a Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* JS: Check expressions inside template literals for validityErik Verbruggen2018-10-121-0/+1
| | | | | | | | | And not use (a possibly invalid result) blindly, because this will cause assertion failures down the line. Task-number: QTBUG-71081 Change-Id: Id10149c55026094a355bd747f66014119c0e24f5 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* JS: Check array subscripts for validity when generating codeErik Verbruggen2018-10-111-0/+20
| | | | | | Task-number: QTBUG-71079 Change-Id: I999130f3994f513bb9d2ca8ddaa94688451937fc Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Optimize access to lexically scoped variablesSimon Hausmann2018-08-291-185/+60
| | | | | | | | | | | | | If we access a lexically scoped variable after the initializer, then we know it's either initialized or at least undefined, so we don't need to do the TDZ check anymore. The ES tests ensure that we don't optimize too much and the newly revived tst_v4misc test ensures that we do not generate the TDZ check instruction for certain scenarios. Change-Id: I6706d1feb22217f323124ee698ebadb70324693b Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* QHash: use the public functions to set the global hash seedThiago Macieira2017-03-161-7/+3
| | | | | | Task-number: QTBUG-47566 Change-Id: I4a7dc1fe14154695b968fffd14abd2e3189c6ad2 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Fix move ordering while resolving edges in register allocationErik Verbruggen2017-02-041-0/+92
| | | | | | | | | | | | | | | | | | When register allocation on an IR in SSA form is done, the last step is to turn the Phi nodes into moves and swaps and put those instructions in the predecessors. As the Phi nodes are conceptually "executed in parallel", this can result in cycles: r1 <- r0 r0 <- r1 These have to be turned into a swap instruction. Also, the moves have to be ordered in order to make sure that no values are overwritten: r1 <- r0 r2 <- r1 Here the two moves need to be switched. The comments in the code document the algorithm. Change-Id: I4151988681f7554b00a3eb70d224e6e2f29ebf04 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Updated license headersJani Heikkinen2016-01-201-17/+12
| | | | | | | | | | | | From Qt 5.7 -> tools & applications are lisenced under GPL v3 with some exceptions, see http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/ Updated license headers to use new GPL-EXCEPT header instead of LGPL21 one (in those files which will be under GPL 3 with exceptions) Change-Id: I04760a0801837cfc516d1c7c02d4f503f6bb70b6 Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
* Remove CONFIG += parallel_test.Friedemann Kleint2015-09-051-1/+0
| | | | | | | The keyword no longer has a meaning for the new CI. Change-Id: I699f2881e291cce02a6a608a8710638886e38daa Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
* Remove QT_DISABLE_DEPRECATED_BEFORE=0 from tests not using deprecated API.Friedemann Kleint2015-09-031-1/+0
| | | | | Change-Id: I691b8ddff60b5f16f06d32b379c76e87f44f84a9 Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
* Update copyright headersJani Heikkinen2015-02-121-7/+7
| | | | | | | | | Qt copyrights are now in The Qt Company, so we could update the source code headers accordingly. In the same go we should also fix the links to point to qt.io. Change-Id: I61120571787870c0ed17066afb31779b1e6e30e9 Reviewed-by: Iikka Eklund <iikka.eklund@theqtcompany.com>
* Update license headers and add new licensesJani Heikkinen2014-08-251-19/+11
| | | | | | | | | - Renamed LICENSE.LGPL to LICENSE.LGPLv21 - Added LICENSE.LGPLv3 & LICENSE.GPLv2 - Removed LICENSE.GPL Change-Id: I84a565e2e0caa3b76bf291a7d188a57a4b00e1b0 Reviewed-by: Jani Heikkinen <jani.heikkinen@digia.com>
* V4 RegAlloc: change life-time intervals from closed to half-open.Erik Verbruggen2014-06-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are two changes in this patch, that go hand-in-hand. First, when re-numbering the statements in order of occurrence in the scheduled basic-blocks, the (new) position is not stored in the statement itself, but in the LifeTimeIntervals class. This makes it possible to re-use information gathered during SSA formation or optimization. The re-numbering itself has also changed, resulting in some minor changes to the life-time interval calculation. The new numbering is described in LifeTimeIntervals::renumber(). The reason is to make it easy for the register allocator and stack-slot allocator to distinguish between definition of a temporary and its uses. Example: 20: %3 = %2 + %1 22: print(%3) If the life-time of %2 or %1 ends at 20, then at the point that %3 gets assigned, it can re-use the storage occupied by %1 or %2. Also, when both %1 and %2 need to get a register assigned (because they were spilled to the stack, for example), %3 should be allocated "after" both %1 and %2. So, instead of having a closed interval of [20-22] for %3, we want to use an open interval of (20-22]. To simulate the "open" part, the life-time of %3 is set to [21-22]. So, all statements live on even positions, and temporaries defined by a statement start at statmentPosition + 1. Change-Id: I0eda2c653b0edf1a529bd0762d338b0ea9a66aa0 Sanity-Review: Qt Sanity Bot <qt_sanitybot@qt-project.org> Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Clean up our internal namespacesLars Knoll2014-02-231-1/+1
| | | | | | | | QQmlJS::MASM -> QV4::JIT QQmlJS::V4IR -> QV4::IR Change-Id: I707e8990459114a699c200fe3c22cec3c8df1afc Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* V4: fix range splitting when split is between intervals.Erik Verbruggen2014-01-172-0/+166
Also added some "white-box" unit tests and sprinkled in a bit of documentation. The case that went wrong is covered by the test rangeSplitting_1: before the fix, the new interval would have two ranges: [66-64],[70-71]. The first range is invalid and should not be there at all. Change-Id: If0742f4e6a96d98ea5d696f95126886ba66f92bb Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
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