From 540d8052265776451bb9f0ab4dee4ec860563cbe Mon Sep 17 00:00:00 2001 From: Roberto Ierusalimschy Date: Tue, 20 Dec 2022 13:24:43 -0300 Subject: Towards Lua 5.5 --- lua.h | 8 ++-- manual/manual.of | 123 ++----------------------------------------------------- testes/all.lua | 2 +- testes/calls.lua | 2 +- testes/main.lua | 6 +-- 5 files changed, 12 insertions(+), 129 deletions(-) diff --git a/lua.h b/lua.h index feb3dbc5..cb32ec22 100644 --- a/lua.h +++ b/lua.h @@ -17,11 +17,11 @@ #define LUA_VERSION_MAJOR "5" -#define LUA_VERSION_MINOR "4" -#define LUA_VERSION_RELEASE "5" +#define LUA_VERSION_MINOR "5" +#define LUA_VERSION_RELEASE "0" -#define LUA_VERSION_NUM 504 -#define LUA_VERSION_RELEASE_NUM (LUA_VERSION_NUM * 100 + 5) +#define LUA_VERSION_NUM 505 +#define LUA_VERSION_RELEASE_NUM (LUA_VERSION_NUM * 100 + 0) #define LUA_VERSION "Lua " LUA_VERSION_MAJOR "." LUA_VERSION_MINOR #define LUA_RELEASE LUA_VERSION "." LUA_VERSION_RELEASE diff --git a/manual/manual.of b/manual/manual.of index 6d19e251..416622c1 100644 --- a/manual/manual.of +++ b/manual/manual.of @@ -1586,7 +1586,8 @@ Each variable name may be postfixed by an attribute @producname{attrib}@producbody{@bnfopt{@bnfter{<} @bnfNter{Name} @bnfter{>}}} } There are two possible attributes: -@id{const}, which declares a @x{constant variable}, +@id{const}, which declares a @emph{constant} or @emph{read-only} variable, +@index{constant variable} that is, a variable that cannot be assigned to after its initialization; and @id{close}, which declares a to-be-closed variable @see{to-be-closed}. @@ -9118,7 +9119,7 @@ is a more portable solution. @simplesect{ Here we list the incompatibilities that you may find when moving a program -from @N{Lua 5.3} to @N{Lua 5.4}. +from @N{Lua 5.4} to @N{Lua 5.5}. You can avoid some incompatibilities by compiling Lua with appropriate options (see file @id{luaconf.h}). @@ -9155,51 +9156,6 @@ change between versions. @itemize{ @item{ -The coercion of strings to numbers in -arithmetic and bitwise operations -has been removed from the core language. -The string library does a similar job -for arithmetic (but not for bitwise) operations -using the string metamethods. -However, unlike in previous versions, -the new implementation preserves the implicit type of the numeral -in the string. -For instance, the result of @T{"1" + "2"} now is an integer, -not a float. -} - -@item{ -Literal decimal integer constants that overflow are read as floats, -instead of wrapping around. -You can use hexadecimal notation for such constants if you -want the old behavior -(reading them as integers with wrap around). -} - -@item{ -The use of the @idx{__lt} metamethod to emulate @idx{__le} -has been removed. -When needed, this metamethod must be explicitly defined. -} - -@item{ -The semantics of the numerical @Rw{for} loop -over integers changed in some details. -In particular, the control variable never wraps around. -} - -@item{ -A label for a @Rw{goto} cannot be declared where a label with the same -name is visible, even if this other label is declared in an enclosing -block. -} - -@item{ -When finalizing an object, -Lua does not ignore @idx{__gc} metamethods that are not functions. -Any value will be called, if present. -(Non-callable values will generate a warning, -like any other error when calling a finalizer.) } } @@ -9210,39 +9166,6 @@ like any other error when calling a finalizer.) @itemize{ @item{ -The function @Lid{print} does not call @Lid{tostring} -to format its arguments; -instead, it has this functionality hardwired. -You should use @idx{__tostring} to modify how values are printed. -} - -@item{ -The pseudo-random number generator used by the function @Lid{math.random} -now starts with a somewhat random seed. -Moreover, it uses a different algorithm. -} - -@item{ -By default, the decoding functions in the @Lid{utf8} library -do not accept surrogates as valid code points. -An extra parameter in these functions makes them more permissive. -} - -@item{ -The options @St{setpause} and @St{setstepmul} -of the function @Lid{collectgarbage} are deprecated. -You should use the new option @St{incremental} to set them. -} - -@item{ -The function @Lid{io.lines} now returns four values, -instead of just one. -That can be a problem when it is used as the sole -argument to another function that has optional parameters, -such as in @T{load(io.lines(filename, "L"))}. -To fix that issue, -you can wrap the call into parentheses, -to adjust its number of results to one. } } @@ -9254,46 +9177,6 @@ to adjust its number of results to one. @itemize{ @item{ -Full userdata now has an arbitrary number of associated user values. -Therefore, the functions @id{lua_newuserdata}, -@id{lua_setuservalue}, and @id{lua_getuservalue} were -replaced by @Lid{lua_newuserdatauv}, -@Lid{lua_setiuservalue}, and @Lid{lua_getiuservalue}, -which have an extra argument. - -For compatibility, the old names still work as macros assuming -one single user value. -Note, however, that userdata with zero user values -are more efficient memory-wise. -} - -@item{ -The function @Lid{lua_resume} has an extra parameter. -This out parameter returns the number of values on -the top of the stack that were yielded or returned by the coroutine. -(In previous versions, -those values were the entire stack.) -} - -@item{ -The function @Lid{lua_version} returns the version number, -instead of an address of the version number. -The Lua core should work correctly with libraries using their -own static copies of the same core, -so there is no need to check whether they are using the same -address space. -} - -@item{ -The constant @id{LUA_ERRGCMM} was removed. -Errors in finalizers are never propagated; -instead, they generate a warning. -} - -@item{ -The options @idx{LUA_GCSETPAUSE} and @idx{LUA_GCSETSTEPMUL} -of the function @Lid{lua_gc} are deprecated. -You should use the new option @id{LUA_GCINC} to set them. } } diff --git a/testes/all.lua b/testes/all.lua index a8e44024..279694ae 100644 --- a/testes/all.lua +++ b/testes/all.lua @@ -3,7 +3,7 @@ -- See Copyright Notice at the end of this file -local version = "Lua 5.4" +local version = "Lua 5.5" if _VERSION ~= version then io.stderr:write("This test suite is for ", version, ", not for ", _VERSION, "\nExiting tests") diff --git a/testes/calls.lua b/testes/calls.lua index cd2696e8..ea384224 100644 --- a/testes/calls.lua +++ b/testes/calls.lua @@ -448,7 +448,7 @@ print("testing binary chunks") do local header = string.pack("c4BBc6BBB", "\27Lua", -- signature - 0x54, -- version 5.4 (0x54) + 0x55, -- version 5.5 (0x55) 0, -- format "\x19\x93\r\n\x1a\n", -- data 4, -- size of instruction diff --git a/testes/main.lua b/testes/main.lua index 9187420e..9c8be580 100644 --- a/testes/main.lua +++ b/testes/main.lua @@ -134,7 +134,7 @@ RUN('env LUA_INIT= LUA_PATH=x lua %s > %s', prog, out) checkout("x\n") -- test LUA_PATH_version -RUN('env LUA_INIT= LUA_PATH_5_4=y LUA_PATH=x lua %s > %s', prog, out) +RUN('env LUA_INIT= LUA_PATH_5_5=y LUA_PATH=x lua %s > %s', prog, out) checkout("y\n") -- test LUA_CPATH @@ -143,7 +143,7 @@ RUN('env LUA_INIT= LUA_CPATH=xuxu lua %s > %s', prog, out) checkout("xuxu\n") -- test LUA_CPATH_version -RUN('env LUA_INIT= LUA_CPATH_5_4=yacc LUA_CPATH=x lua %s > %s', prog, out) +RUN('env LUA_INIT= LUA_CPATH_5_5=yacc LUA_CPATH=x lua %s > %s', prog, out) checkout("yacc\n") -- test LUA_INIT (and its access to 'arg' table) @@ -153,7 +153,7 @@ checkout("3.2\n") -- test LUA_INIT_version prepfile("print(X)") -RUN('env LUA_INIT_5_4="X=10" LUA_INIT="X=3" lua %s > %s', prog, out) +RUN('env LUA_INIT_5_5="X=10" LUA_INIT="X=3" lua %s > %s', prog, out) checkout("10\n") -- test LUA_INIT for files -- cgit v1.2.3-55-g6feb