Details
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Bug
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Resolution: Cannot Reproduce
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P1: Critical
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6.4.1, 6.5
Description
In the following example, the onCompleted handler is misinterpreted:
import QtQuick Window { id: win width: 640 height: 480 visible: true title: "Wohooooo" property Item foo: Rectangle { id: r1 onColorChanged: () => console.log("R1: " + r1.color) } property Item bar: Rectangle { id: r2 onColorChanged: () => console.log("R2: " + r2.color) } // Works Item { Component.onCompleted: ((win.foo as Rectangle).color = "red") && ((win.bar as Rectangle).color = "blue") } // Compiles without errors for 6.4.1, crashes qmlsc for 6.5 Item { Component.onCompleted: () => { (win.foo as Rectangle).color = "black" (win.bar as Rectangle).color = "white" } } // Compiles wit error for 6.4.1, crashes qmlsc for 6.5 Item { Component.onCompleted: { (win.foo as Rectangle).color = "green" (win.bar as Rectangle).color = "yellow" } } // Works Item { Component.onCompleted: { (win.foo as Rectangle).color = "deep"; (win.bar as Rectangle).color = "purple" } } }
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Compiler output for 6.4.1:
Error: main.qml:37:25: Could not compile binding for onCompleted: Instruction "generate_CallValue" not implemented (win.bar as Rectangle).color = "yellow" ^^^^^^^^^
Runtime output for 6.4.1:
qml: R1: #000000 qml: R2: #800080 qrc:/untitled/main.qml:37: TypeError: green is not a function qrc:/untitled/main.qml:29: TypeError: black is not a function qml: R1: #ff0000 qml: R2: #0000ff
Stacktrace for 6.5:
#0 QQmlJSTypeResolver::scopeForLocation (this=0x7ffe0aa7b858, location=...)
at /home/qt/work/qt/qtdeclarative_build/include/QtQml/6.5.0/QtQml/private/../../../../../../qtdeclarative/src/qml/common/qv4compileddata_p.h:112
#1 0x0000000000414c07 in ?? ()
#2 0x00007f51a8cca089 in operator() (bindingOrFunction=..., __closure=<synthetic pointer>) at /home/qt/work/qt/qtdeclarative/src/qmlcompiler/qqmljscompiler.cpp:327
#3 std::for_each<__gnu_cxx::__normal_iterator<BindingOrFunction*, std::vector<BindingOrFunction> >, qCompileQmlFile(QmlIR::Document&, const QString&, QQmlJSSaveFunction, QQmlJSAotCompiler*
, QQmlJSCompileError*, bool, QV4::Compiler::CodegenWarningInterface*, const QString*)::<lambda(const BindingOrFunction&)> > (__f=..., __last={m_binding = 0x6b2330, m_function = 0x61},
__first={m_binding = 0x628240, m_function = 0x0}) at /opt/rh/gcc-toolset-10/root/usr/include/c++/10/bits/stl_algo.h:3844
#4 qCompileQmlFile(QmlIR::Document&, QString const&, std::function<bool (QV4::CompiledData::SaveableUnitPointer const&, QMap<int, QQmlJSAotFunction> const&, QString*)>, QQmlJSAotCompiler*,
QQmlJSCompileError*, bool, QV4::Compiler::CodegenWarningInterface*, QString const*) (irDocument=..., inputFileName=..., saveFunction=..., aotCompiler=<optimized out>,
error=<optimized out>, storeSourceLocation=<optimized out>, interface=<optimized out>, fileContents=<optimized out>)
at /home/qt/work/qt/qtdeclarative/src/qmlcompiler/qqmljscompiler.cpp:351
#5 0x00007f51a8ccb726 in qCompileQmlFile(QString const&, std::function<bool (QV4::CompiledData::SaveableUnitPointer const&, QMap<int, QQmlJSAotFunction> const&, QString*)>, QQmlJSAotCompil
er*, QQmlJSCompileError*, bool, QV4::Compiler::CodegenWarningInterface*, QString const*) (inputFileName=..., saveFunction=..., aotCompiler=0x7ffe0aa7b850, error=0x7ffe0aa7b5b0,
storeSourceLocation=<optimized out>, interface=0x42e4c0, fileContents=0x0) at /home/qt/work/qt/qtdeclarative/src/qmlcompiler/qqmljscompiler.cpp:186
#6 0x000000000040d4b3 in ?? ()
#7 0x00007f51a764a510 in __libc_start_call_main () from /lib64/libc.so.6
#8 0x00007f51a764a5c9 in __libc_start_main_impl () from /lib64/libc.so.6
#9 0x000000000040d87e in ?? ()