From 4fea3ec29c9911522a379a01418394b5cad29ecc Mon Sep 17 00:00:00 2001 From: Ulf Hermann Date: Mon, 29 Apr 2019 16:44:48 +0200 Subject: Skip block context within call contexts when searching for parameters Only the call context contains the signal parameters. However, there can be any number of nested block contexts in a function. This manifests itself when the function needs an execution context. The simplest way to trigger this is attaching a debugger. Fixes: QTBUG-75393 Change-Id: Iabdc06a9fe7bf88204525d6940b626575fee1579 Reviewed-by: Simon Hausmann --- src/qml/jsruntime/qv4qmlcontext.cpp | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) (limited to 'src/qml') diff --git a/src/qml/jsruntime/qv4qmlcontext.cpp b/src/qml/jsruntime/qv4qmlcontext.cpp index 12ada7ee70..0c5226d46c 100644 --- a/src/qml/jsruntime/qv4qmlcontext.cpp +++ b/src/qml/jsruntime/qv4qmlcontext.cpp @@ -458,11 +458,17 @@ ReturnedValue QQmlContextWrapper::resolveQmlContextPropertyLookupGetter(Lookup * // into the handler expression through the locals of the call context. So for onClicked: { ... } // the parameters of the clicked signal are injected and we must allow for them to be found here // before any other property from the QML context. - ExecutionContext &ctx = static_cast(engine->currentStackFrame->jsFrame->context); - if (ctx.d()->type == Heap::ExecutionContext::Type_CallContext) { - uint index = ctx.d()->internalClass->indexOfValueOrGetter(name); - if (index < UINT_MAX) - return static_cast(ctx.d())->locals[index].asReturnedValue(); + for (Heap::ExecutionContext *ctx = engine->currentContext()->d(); ctx; ctx = ctx->outer) { + if (ctx->type == Heap::ExecutionContext::Type_CallContext) { + const uint index = ctx->internalClass->indexOfValueOrGetter(name); + if (index < std::numeric_limits::max()) + return static_cast(ctx)->locals[index].asReturnedValue(); + } + + // Skip only block contexts within the current call context. + // Other contexts need a regular QML property lookup. See below. + if (ctx->type != Heap::ExecutionContext::Type_BlockContext) + break; } bool hasProperty = false; -- cgit v1.2.3