mirror of https://github.com/swig/swig
152 lines
6.7 KiB
Plaintext
152 lines
6.7 KiB
Plaintext
Below are the changes for the current release.
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See the CHANGES file for changes in older releases.
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See the RELEASENOTES file for a summary of changes in each release.
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Issue # numbers mentioned below can be found on Github. For more details, add
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the issue number to the end of the URL: https://github.com/swig/swig/issues/
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Version 4.2.0 (in progress)
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===========================
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2023-01-03: wsfulton
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#983 Fix seg fault when instantiating templates with parameters that are function
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parameters containing templates, such as:
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%template(MyC) C<int(std::vector<int>)>;
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2023-01-03: wsfulton
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Complete support for C++11 variadic function templates. Support was previously limited
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to just one template parameter. Now zero or more template parameters are supported
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in the %template instantiation.
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2022-12-29: wsfulton
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#1863 Syntax error fixes parsing more elaborate parameter pack arguments that are
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used in function pointers, member function pointers:
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template <typename... V> struct VariadicParms {
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void ParmsFuncPtrPtr(int (*)(V*...)) {}
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void ParmsFuncPtrPtrRef(int (*)(V*&...)) {}
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void ParmsFuncPtrPtrRValueRef(int (*)(V*&&...)) {}
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void ParmsFuncPtrRef(int (*)(V&...)) {}
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void ParmsFuncPtrRValueRef(int (*)(V&&...)) {}
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void ParmsMemFuncPtrPtr(int (KlassMemFuncs::*)(V*...)) {}
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void ParmsMemFuncPtrPtrRef(int (KlassMemFuncs::*)(V*&...)) {}
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void ParmsMemFuncPtrPtrRValueRef(int (KlassMemFuncs::*)(V*&&...)) {}
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void ParmsMemFuncPtrRef(int (KlassMemFuncs::*)(V&...)) {}
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void ParmsMemFuncPtrRValueRef(int (KlassMemFuncs::*)(V&&...)) {}
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};
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%template(VariadicParms0) VariadicParms<>;
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%template(VariadicParms1) VariadicParms<A>;
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Also in various other places such as within noexcept specifiers:
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template<typename T, typename... Args>
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void emplace(Args &&... args) noexcept(
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std::is_nothrow_constructible<T, Args &&...>::value);
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2022-12-27: wsfulton
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Fix instantiation of variadic class templates containing parameter pack arguments that
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are function pointers.
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template <typename... V> struct VariadicParms {
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void ParmsFuncPtrVal(int (*)(V...)) {}
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};
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%template(VariadicParms0) VariadicParms<>;
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%template(VariadicParms1) VariadicParms<A>;
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2022-12-23: wsfulton
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#1863 Fix syntax error parsing variadic templates containing parameter pack arguments that
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are function pointers.
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2022-12-22: wsfulton
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Complete support for C++11 variadic class templates. Support was previously limited
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to just one template parameter. Now zero or more template parameters are supported.
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2022-12-06: wsfulton
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#1636 Fix syntax error for misplaced Doxygen comment after struct/class member.
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Fix syntax error using Doxygen member groups syntax, "///*}", when used after
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final struct/class member.
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2022-12-05: wsfulton
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#2023 Fix garbled Doxygen post comments in parameter lists.
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Fix syntax error parsing a trailing Doxygen comment in parameter lists.
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2022-12-03: wsfulton
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#1609 Fix syntax error parsing of Doxygen comments after last enum item.
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2022-12-03: wsfulton
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#1715 Fix syntax error parsing of unconventionally placed Doxygen post
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comments for enum items.
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2022-12-02: wsfulton
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#624 #1021 Improved template template parameters support. Previously, specifying more
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than one simple template template parameter resulted in a parse error. Now
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multiple template template parameters are working including instantiation with
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%template. Example:
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template <template<template<class> class, class> class Op, template<class> class X, class Y>
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class C { ... };
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2022-11-26: wsfulton
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#1589 #1590 Slightly better decltype() support for expressions, such as:
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int i,j;
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... decltype(i+j) ...
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... decltype(&i) ...
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These result in a warning for non-trivial expressions which SWIG cannot evaluate:
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Warning 344: Unable to deduce decltype for 'i+j'.
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See 'Type Inference' in CPlusPlus.html for workarounds.
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2022-11-22: wsfulton
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#1037 Fix seg fault handling template parameter expressions containing '<='
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or '>='.
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2022-11-18: wsfulton
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Duplicate class template instantiations via %template now issue a warning and are ignored.
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%template(Aint) A<int>;
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%template(Aint2) A<int>; // Now ignored and issues a warning
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example.i:7: Warning 404: Duplicate template instantiation of 'A< int >' with name 'Aint2' ignored,
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example.i:6: Warning 404: previous instantiation of 'A< int >' with name 'Aint'.
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A single empty template instantiation before a named instantiation is the one exception
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for allowing duplicate template instantiations as the empty template instantation does not
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create a wrapper for the template, it merely adds the instantiation into SWIG's internal
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type system.
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Duplicate empty template instantiations are quietly ignored.
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%template() B<int>;
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%template(Bint) B<int>; // OK
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%template() C<int>;
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%template() C<int>; // Quietly ignored now
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%template(Cint) C<int>; // OK
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Note that default template parameters are considered when looking for duplicates such as:
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template <typename T, typename U = short> struct D {};
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%template(Dint) D<int>;
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%template(Dintshort) D<int, short>;
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example.i:7: Warning 404: Duplicate template instantiation of 'D< int,short >' with name 'Dintshort' ignored,
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example.i:6: Warning 404: previous instantiation of 'D< int >' with name 'Dint'.
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Note that the following always was ignored, but that was because the chosen name was a
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duplicate rather than the template being a duplicate:
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%template(Eint) E<int>;
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%template(Eint) E<int>; // Always has been ignored as a redefined identifier
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The old warning was:
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example.i:7: Warning 302: Identifier 'Eint' redefined (ignored) (Renamed from 'E< int >'),
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example.i:6: Warning 302: previous definition of 'Eint' (Renamed from 'E< int >').
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*** POTENTIAL INCOMPATIBILITY ***
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