Nathan Froyd e7b3b3140d Bug 1415980 - make hash keys movable and not copyable; r=erahm ... Everything that goes in a PLDHashtable (and its derivatives, like nsTHashtable) needs to inherit from PLDHashEntryHdr. But through a lack of enforcement, copy constructors for these derived classes didn't explicitly invoke the copy constructor for PLDHashEntryHdr (and the compiler didn't invoke the copy constructor for us). Instead, PLDHashTable explicitly copied around the bits that the copy constructor would have. The current setup has two problems: 1) Derived classes should be using move construction, not copy construction, since anything that's shuffling hash table keys/entries around will be using move construction. 2) Derived classes should take responsibility for transferring bits of superclass state around, and not rely on something else to handle that. The second point is not a huge problem for PLDHashTable (PLDHashTable only has to copy PLDHashEntryHdr's bits in a single place), but future hash table implementations that might move entries around more aggressively would have to insert compensation code all over the place. Additionally, if moving entries is implemented via memcpy (which is quite common), PLDHashTable copying around bits *again* is inefficient. Let's fix all these problems in one go, by: 1) Explicitly declaring the set of constructors that PLDHashEntryHdr implements (and does not implement). In particular, the copy constructor is deleted, so any derived classes that attempt to make themselves copyable will be detected at compile time: the compiler will complain that the superclass type is not copyable. This change on its own will result in many compiler errors, so... 2) Change any derived classes to implement move constructors instead of copy constructors. Note that some of these move constructors are, strictly speaking, unnecessary, since the relevant classes are moved via memcpy in nsTHashtable and its derivatives.		2018-09-20 11:20:36 -04:00
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crashtests
test
moz.build
nsISMILAttr.h
nsISMILType.h
nsSMILAnimationController.cpp
nsSMILAnimationController.h
nsSMILAnimationFunction.cpp
nsSMILAnimationFunction.h
nsSMILCompositor.cpp
nsSMILCompositor.h	Bug 1415980 - make hash keys movable and not copyable; r=erahm	2018-09-20 11:20:36 -04:00
nsSMILCompositorTable.h
nsSMILCSSProperty.cpp
nsSMILCSSProperty.h
nsSMILCSSValueType.cpp
nsSMILCSSValueType.h
nsSMILFloatType.cpp
nsSMILFloatType.h
nsSMILInstanceTime.cpp
nsSMILInstanceTime.h
nsSMILInterval.cpp
nsSMILInterval.h
nsSMILKeySpline.cpp
nsSMILKeySpline.h
nsSMILMilestone.h
nsSMILNullType.cpp
nsSMILNullType.h
nsSMILParserUtils.cpp
nsSMILParserUtils.h
nsSMILRepeatCount.cpp
nsSMILRepeatCount.h
nsSMILSetAnimationFunction.cpp
nsSMILSetAnimationFunction.h
nsSMILTargetIdentifier.h
nsSMILTimeContainer.cpp
nsSMILTimeContainer.h
nsSMILTimedElement.cpp
nsSMILTimedElement.h
nsSMILTimeValue.cpp
nsSMILTimeValue.h
nsSMILTimeValueSpec.cpp
nsSMILTimeValueSpec.h
nsSMILTimeValueSpecParams.h
nsSMILTypes.h
nsSMILValue.cpp
nsSMILValue.h
SMILBoolType.cpp
SMILBoolType.h
SMILEnumType.cpp
SMILEnumType.h
SMILIntegerType.cpp
SMILIntegerType.h
SMILStringType.cpp
SMILStringType.h
TimeEvent.cpp
TimeEvent.h