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* Functions with vararg tables don't need hidden args.Roberto I2025-11-281-14/+25
| | | | | Vararg functions with vararg tables don't use the arguments hidden in the stack; therfore, it doesn't need to build/keep them.
* New conceptual model for varargRoberto I2025-11-261-13/+51
| | | | | | Conceptually, all functions get their vararg arguments in a vararg table. The storing of vararg arguments in the stack is always treated as an optimization.
* External strings are as good as internal onesRoberto I2025-11-111-1/+1
| | | | A '__mode' metafield and an "n" key both can be external strings.
* Optimization for vararg tablesRoberto I2025-09-241-0/+22
| | | | | | | A vararg table can be virtual. If the vararg table is used only as a base in indexing expressions, the code does not need to create an actual table for it. Instead, it compiles the indexing expressions into direct accesses to the internal vararg data.
* Varag parameter is a new kind of variableRoberto I2025-09-171-4/+4
| | | | To allow some optimizations on its use.
* Vararg tableRoberto I2025-09-161-6/+39
| | | | Not yet optimized nor documented.
* Removed code for compatibility with version 5.3Roberto I2025-08-201-16/+0
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* Added gcc option '-Wconversion'Roberto Ierusalimschy2024-07-271-2/+2
| | | | | No warnings for standard numerical types. Still pending alternative numerical types.
* Fixed dangling 'StkId' in 'luaV_finishget'Roberto Ierusalimschy2024-03-291-19/+24
| | | | Bug introduced in 05932567.
* DetailsRoberto Ierusalimschy2024-01-291-4/+3
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* Merge branch 'newarray' into nextversionRoberto Ierusalimschy2023-11-071-5/+6
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| * Some cleaning in the new table APIRoberto Ierusalimschy2023-05-161-5/+6
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* | Removed GC checks from function callsRoberto Ierusalimschy2022-11-241-1/+1
|/ | | | | Function calls do not create new objects. (It may use memory with stack reallocation, but now that is irrelevant to the GC.)
* Stack indices changed to union'sRoberto Ierusalimschy2022-10-291-19/+19
| | | | | That will allow to change pointers to offsets while reallocating the stack.
* Broadening the use of branch hintsRoberto Ierusalimschy2021-02-241-2/+3
| | | | | | More uses of macros 'likely'/'unlikely' (renamed to 'l_likely'/'l_unlikely'), both in range (extended to the libraries) and in scope (extended to hooks, stack growth).
* Fixed bugs of stack reallocation x GCRoberto Ierusalimschy2020-07-071-2/+2
| | | | | | | | Macro 'checkstackGC' was doing a GC step after resizing the stack; the GC could shrink the stack and undo the resize. Moreover, macro 'checkstackp' also does a GC step, which could remove the preallocated CallInfo when calling a function. (Its name has been changed to 'checkstackGCp' to emphasize that it calls the GC.)
* Clearer distinction between types and tagsRoberto Ierusalimschy2020-01-311-1/+1
| | | | | LUA_T* represents only types; tags (types + Variants) are represented by LUA_V* constants.
* Comment about LUA_COMPAT_LT_LE moved to proper placeRoberto Ierusalimschy2019-12-101-0/+9
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* Undo change in the handling of 'L->top' (commit b80077b8f3)Roberto Ierusalimschy2019-08-291-2/+0
| | | | | | 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.
* First version of OP_MMBIN opcodesRoberto Ierusalimschy2019-08-271-2/+2
| | | | | | | | | | | In arithmetic/bitwise operators, the call to metamethods is made in a separate opcode following the main one. (The main opcode skips this next one when the operation succeeds.) This change reduces slightly the size of the binary and the complexity of the arithmetic/bitwise opcodes. It also simplfies the treatment of errors and yeld/resume in these operations, as there are much fewer cases to consider. (Only OP_MMBIN/OP_MMBINI/OP_MMBINK, instead of all variants of all arithmetic/bitwise operators.)
* Change in the handling of 'L->top' when calling metamethodsRoberto Ierusalimschy2019-07-261-3/+9
| | | | | | | Instead of updating 'L->top' in every place that may call a metamethod, the metamethod functions themselves (luaT_trybinTM and luaT_callorderTM) correct the top. (When calling metamethods from the C API, however, the callers must preserve 'L->top'.)
* Details (typos in comments)Roberto Ierusalimschy2019-07-051-6/+6
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* Keep correct type for immediate operands in comparisonsRoberto Ierusalimschy2019-03-221-2/+6
| | | | | | | | | | | | When calling metamethods for things like 'a < 3.0', which generates the opcode OP_LTI, the C register tells that the operand was converted to an integer, so that it can be corrected to float when calling a metamethod. This commit also includes some other stuff: - file 'onelua.c' added to the project - opcode OP_PREPVARARG renamed to OP_VARARGPREP - comparison opcodes rewritten through macros
* New macros for arithmetic/bitwise operations in 'luaV_execute'Roberto Ierusalimschy2018-11-051-1/+1
| | | | | | | The repetitive code of the arithmetic and bitwise operators in the main iterpreter loop was moved to appropriate macros. (As a detail, the function 'luaV_div' was renamed 'luaV_idiv', as it does an "integer division" (floor division).
* First "complete" implementation of to-be-closed variablesRoberto Ierusalimschy2018-10-171-1/+1
| | | | | | | Still missing: - handling of memory errors when creating upvalue (must run closing method all the same) - interaction with coroutines
* Deprecated the emulation of '__le' using '__lt'Roberto Ierusalimschy2018-08-241-0/+2
| | | | | | | | | | | As hinted in the manual for Lua 5.3, the emulation of the metamethod for '__le' using '__le' has been deprecated. It is slow, complicates the logic, and it is easy to avoid this emulation by defining a proper '__le' function. Moreover, often this emulation was used wrongly, with a programmer assuming that an order is total when it is not (e.g., NaN in floating-point numbers).
* Removed extra information from RCS keyword stringsRoberto Ierusalimschy2018-08-231-1/+1
| | | | | Version numbers and dates (mostly wrong) from RCS keyword strings removed from all source files; only the file name are kept.
* new field 'nilvalue' in struct 'global_State' to avoid the use ofRoberto Ierusalimschy2018-06-151-3/+2
| | | | addresses of static variables
* added 'const' to 'Proto*' when possibleRoberto Ierusalimschy2018-06-081-2/+2
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* no more 'luaO_nilobject' to avoid comparison of global variable addressesRoberto Ierusalimschy2018-06-011-2/+3
| | | | (now uses static variables)
* no more nil-in-tableRoberto Ierusalimschy2018-04-041-29/+1
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* metamethods for 'removekey'/'keyin'Roberto Ierusalimschy2018-02-271-1/+30
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* better names for macros for tags and types.Roberto Ierusalimschy2018-02-261-4/+4
| | | | | rttype -> rawtt; ttyperaw -> withvariant; ttype -> ttypetag; tnov -> ttype
* first version of empty entries in tablesRoberto Ierusalimschy2018-02-231-4/+4
| | | | (so that, in the future, tables can contain regular nil entries)
* new opcodes OP_GTI/OP_GEIRoberto Ierusalimschy2018-02-211-3/+2
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* correct way to check stack space for vararg functionsRoberto Ierusalimschy2018-02-171-3/+5
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* some simplifications/optimizations in returns from Lua functionsRoberto Ierusalimschy2018-02-151-4/+6
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* vararg back to '...' (but with another implementation)Roberto Ierusalimschy2018-02-091-32/+23
| | | | new implementation should have zero overhead for non-vararg functions
* new opcode 'PREPVARARG'Roberto Ierusalimschy2018-02-071-2/+3
| | | | (avoids test for vararg function in all function calls)
* bug in tailcall of vararg functionsRoberto Ierusalimschy2018-01-281-9/+8
| | | | (when adjusting missing parameters)
* calling a vararg function needs to check GCRoberto Ierusalimschy2018-01-281-1/+3
| | | | (because it creates a new table)
* keep control of stack top in Lua functions concentrated in 'luaV_execute'Roberto Ierusalimschy2017-12-281-17/+5
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* when running Lua code, there is no need to keep 'L->top' "correct";Roberto Ierusalimschy2017-12-201-7/+19
| | | | set it only when needed.
* new macro 'isLuacode' (to distinguish regular Lua code fromRoberto Ierusalimschy2017-12-191-3/+3
| | | | hooks, where C code can run inside a Lua function).
* 'Proto->numparams' does not include vararg parameterRoberto Ierusalimschy2017-12-151-2/+2
| | | | (one less subtraction when calling functions...)
* new opcodes BANDK/BORK/BXORK. (They do not use immediate operandsRoberto Ierusalimschy2017-12-131-7/+12
| | | | | because, too often, masks in bitwise operations are integers larger than one byte.)
* warnings from Visual Studio /W3Roberto Ierusalimschy2017-11-301-2/+2
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* new opcodes 'OP_LTI' and 'OP_LEI'Roberto Ierusalimschy2017-11-271-1/+15
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* small simplifications around 'luaT_callorderTM'Roberto Ierusalimschy2017-11-231-4/+13
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* new function 'luaV_flttointeger' to convert floats to integers (withoutRoberto Ierusalimschy2017-11-081-3/+2
| | | | | string coercions) + string operands to bitwise operations handled by string metamethods
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