diff options
Diffstat (limited to 'src/qml/compiler/qv4compiler.cpp')
| -rw-r--r-- | src/qml/compiler/qv4compiler.cpp | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/src/qml/compiler/qv4compiler.cpp b/src/qml/compiler/qv4compiler.cpp index 8df61e51ab..34c62cc992 100644 --- a/src/qml/compiler/qv4compiler.cpp +++ b/src/qml/compiler/qv4compiler.cpp @@ -197,6 +197,10 @@ QV4::ReturnedValue QV4::Compiler::JSUnitGenerator::constant(int idx) const return constants.at(idx); } +// The JSClass object and its members are stored contiguously in the jsClassData. +// In order to get to the members you have to skip over the JSClass, therefore +1. +static constexpr qsizetype jsClassMembersOffset = 1; + int QV4::Compiler::JSUnitGenerator::registerJSClass(const QStringList &members) { // ### re-use existing class definitions. @@ -209,7 +213,8 @@ int QV4::Compiler::JSUnitGenerator::registerJSClass(const QStringList &members) CompiledData::JSClass *jsClass = reinterpret_cast<CompiledData::JSClass*>(jsClassData.data() + oldSize); jsClass->nMembers = members.size(); - CompiledData::JSClassMember *member = reinterpret_cast<CompiledData::JSClassMember*>(jsClass + 1); + CompiledData::JSClassMember *member + = reinterpret_cast<CompiledData::JSClassMember*>(jsClass + jsClassMembersOffset); for (const auto &name : members) { member->set(registerString(name), false); @@ -219,6 +224,25 @@ int QV4::Compiler::JSUnitGenerator::registerJSClass(const QStringList &members) return jsClassOffsets.size() - 1; } +int QV4::Compiler::JSUnitGenerator::jsClassSize(int jsClassId) const +{ + const CompiledData::JSClass *jsClass + = reinterpret_cast<const CompiledData::JSClass*>( + jsClassData.data() + jsClassOffsets[jsClassId]); + return jsClass->nMembers; +} + +QString QV4::Compiler::JSUnitGenerator::jsClassMember(int jsClassId, int member) const +{ + const CompiledData::JSClass *jsClass = reinterpret_cast<const CompiledData::JSClass*>( + jsClassData.data() + jsClassOffsets[jsClassId]); + Q_ASSERT(member >= 0); + Q_ASSERT(uint(member) < jsClass->nMembers); + const CompiledData::JSClassMember *members + = reinterpret_cast<const CompiledData::JSClassMember*>(jsClass + jsClassMembersOffset); + return stringForIndex(members[member].nameOffset()); +} + int QV4::Compiler::JSUnitGenerator::registerTranslation(const QV4::CompiledData::TranslationData &translation) { translations.append(translation); |