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2020-02-27DetailsRoberto Ierusalimschy13-45/+52
Several details in code (e.g., moving a variable to the most inner scope that encloses its uses), comments, parameter names, extra tests.
2020-02-11OP_LOADFALSE broken in two instructionsRoberto Ierusalimschy6-6/+14
2020-01-31Tag values don't need to be different from type valuesRoberto Ierusalimschy1-18/+19
Variants can use zero for first variant.
2020-01-31Clearer distinction between types and tagsRoberto Ierusalimschy22-212/+230
LUA_T* represents only types; tags (types + Variants) are represented by LUA_V* constants.
2020-01-06New macro 'makevariant' to codify variant tagsRoberto Ierusalimschy1-11/+14
2020-01-06Changed internal representation of booleansRoberto Ierusalimschy14-52/+87
Instead of an explicit value (field 'b'), true and false use different tag variants. This avoids reading an extra field and results in more direct code. (Most code that uses booleans needs to distinguish between true and false anyway.)
2019-12-30Fixed bug in 'aux_rawset'Roberto Ierusalimschy1-1/+1
In 'aux_rawset', top must be decremented after the barrier, which refers to top-1. (Bug introduced in commit c646e57fd.)
2019-12-30Comments (mosty typos)Roberto Ierusalimschy15-21/+28
2019-12-27Copyright year changed to 2020Roberto Ierusalimschy2-3/+3
2019-12-17Joined common code in 'lua_rawset' and 'lua_rawsetp'Roberto Ierusalimschy3-21/+23
2019-12-17Easy way to allow Unicode characters in identifiersRoberto Ierusalimschy1-16/+25
For those that want to try it...
2019-12-17Added test for NULL in string.format("%p")Roberto Ierusalimschy1-0/+2
ISO C states that standard library functions should not be called with NULL arguments, unless stated otherwise. 'sprintf' does not state otherwise, and it doesn't hurt to be on the safe side.
2019-12-13Small correction in assertionRoberto Ierusalimschy2-2/+2
2019-12-10Comment about LUA_COMPAT_LT_LE moved to proper placeRoberto Ierusalimschy2-6/+12
2019-12-05Simplifications in 'op_arith*' family of macrosRoberto Ierusalimschy1-47/+27
2019-12-05Using an enumeration for float->integer coercion modesRoberto Ierusalimschy4-22/+30
2019-12-05'l_mathlim' renamed to 'l_floatatt'Roberto Ierusalimschy4-8/+8
That macro is applied to float attributes, not to limits.
2019-12-05Better comments about the use of 'k' in opcodesRoberto Ierusalimschy2-30/+34
2019-12-05Manual a little more clear about string->number coersionsRoberto Ierusalimschy1-16/+25
2019-12-04Code reorganization for opcodes OP_FORPREP and OP_FORLOOPRoberto Ierusalimschy1-75/+116
Parts of the code for opcodes OP_FORPREP and OP_FORLOOP were moved to functions outside the interpreter loop.
2019-11-28Removed some wrong commentsRoberto Ierusalimschy1-8/+6
Both 'tonumber' and 'tointeger' cannot change the out parameter when the conversion fails.
2019-11-22More generic pattern when testing 'string.format'Roberto Ierusalimschy1-2/+2
The result of 'string.format("%a", 0.0)' can have multiple zeros after the dot.
2019-11-18DetailsRoberto Ierusalimschy6-15/+16
2019-11-08Using 'metavalues' for "metamethods" that are not methodsRoberto Ierusalimschy1-21/+26
Several "metamethods" are not required to be methods (functions), so it seems clearer not to call them metamethods. The manual now uses the word 'metavalue' for those values.
2019-11-07Comments in 'lopcodes.h'Roberto Ierusalimschy1-92/+92
Both 'R' and 'K' are arrays, so the comments should use square brackets to index them.
2019-10-30File 'bugs' no longer tracked by gitRoberto Ierusalimschy1-4052/+0
The file 'bugs' reports bugs in several different versions (corresponding to different branches in the repository), without a clear division of "this bugs belongs to this version". So, it doesn't make sense to track it along with one (or many) versions.
2019-10-28Fixed bug in tail calls of __call chainsRoberto Ierusalimschy2-2/+26
A tail call of a __call chain (a __call metamethod that itself is also not a function) was being perfomed as a regular call.
2019-10-25Fixed warnings from Keil compilerRoberto Ierusalimschy2-7/+4
2019-10-24Change in the prefix of messages from searchersRoberto Ierusalimschy2-5/+32
The initial "\n\t" to properly indent a searcher message is being added by 'findloader' when building the error message, instead of being included in the original message by each searcher itself.
2019-10-23Added function 'luaL_buffsub'Roberto Ierusalimschy2-9/+19
2019-10-23Several enhancements in the manualRoberto Ierusalimschy1-43/+54
2019-10-23More pious implementation of 'string.dump'Roberto Ierusalimschy1-8/+24
In 'str__dump', the call to 'lua_dump' assumes the function is on the top of the stack, but the manual allows 'luaL_buffinit' to push stuff on the stack (although the current implementation does not). So, the call to 'luaL_buffinit' must come after the call to 'lua_dump'.
2019-10-22Changed definition of macro 'l_isfalse'Roberto Ierusalimschy1-1/+1
The old definition did one test for nil, but three tests for the all too common booleans (and two tests for other values); this definition does two tests for all values.
2019-10-22Details (mostly comments)Roberto Ierusalimschy4-9/+28
2019-10-17Larger C-stack limits for new threadsRoberto Ierusalimschy1-1/+1
New threads were being created with very small C-stack limits. This is not a problem for coroutines, because 'lua_resume' sets a new limit, but not all threads are coroutines.
2019-10-17Easy redefinition of valid flags for 'string.format'Roberto Ierusalimschy1-3/+6
2019-10-08Improvements in the manual around metamethodsv5.4-betaRoberto Ierusalimschy1-35/+42
2019-10-08No coercion string->number in arithmetic with LUA_NOCVTS2NRoberto Ierusalimschy1-0/+13
2019-10-08Makefile compiles the Lua compiler with '-Os'Roberto Ierusalimschy1-0/+10
The performance of the Lua compiler is not critical for Lua performance, but it is a big component in the source. So, it makes sense to trade speed for size in this component.
2019-10-04Fixed a warning and other minor issuesRoberto Ierusalimschy6-8/+9
Fixed some minor issues from the feedback for 5.4-beta rc1.
2019-10-02Script 'packtests' gets Lua version as a parameterRoberto Ierusalimschy1-1/+3
2019-10-01Janitorial workRoberto Ierusalimschy4-58/+62
- Several details in 'lcode.c' - A few more tests for code generation - Bug in assert in 'lcode.c' ("=" x "==") - Comments in 'lopcodes.h' and 'ltable.c'
2019-09-24Details in the makefile (warning options)Roberto Ierusalimschy1-8/+8
2019-09-24Subtraction of small constant integers optimized with OP_ADDIRoberto Ierusalimschy4-31/+46
2019-09-24'setCstacklimit' renamed to 'setcstacklimit'Roberto Ierusalimschy5-23/+23
Function names in the API use only lowercase letters.
2019-09-19Janitorial work in 'lcode.c'Roberto Ierusalimschy2-38/+33
2019-09-11Simplification in the call to 'constfolding'Roberto Ierusalimschy2-17/+21
2019-09-10Removed arithmetic opcodes with immediate operandRoberto Ierusalimschy7-65/+17
The difference in performance between immediate operands and K operands does not seem to justify all those extra opcodes. We only keep OP_ADDI, due to its ubiquity and because the difference is a little more relevant. (Later, OP_SUBI will be implemented by OP_ADDI, negating the constant.)
2019-09-06Added macro 'testMMMode'Roberto Ierusalimschy3-94/+95
Macro 'testMMMode' checks whether opcode is an MM opcode.
2019-08-29Undo change in the handling of 'L->top' (commit b80077b8f3)Roberto Ierusalimschy4-16/+9
With MMBIN instructions, there are fewer opcodes that need to update 'L->top', so that change does not seem to pay for the increased complexity.