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luau/CMakeLists.txt
aaron 02241b6d24
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Sync to upstream/release/645 (#1440) 
In this update, we continue to improve the overall stability of the new
type solver. We're also shipping some early bits of two new features,
one of the language and one of the analysis API: user-defined type
functions and an incremental typechecking API.

If you use the new solver and want to use all new fixes included in this
release, you have to reference an additional Luau flag:
```c++
LUAU_DYNAMIC_FASTINT(LuauTypeSolverRelease)
```
And set its value to `645`:
```c++
DFInt::LuauTypeSolverRelease.value = 645; // Or a higher value for future updates
```

## New Solver

* Fix a crash where scopes are incorrectly accessed cross-module after
they've been deallocated by appropriately zeroing out associated scope
pointers for free types, generic types, table types, etc.
* Fix a crash where we were incorrectly caching results for bound types
in generalization.
* Eliminated some unnecessary intermediate allocations in the constraint
solver and type function infrastructure.
* Built some initial groundwork for an incremental typecheck API for use
by language servers.
* Built an initial technical preview for [user-defined type
functions](https://rfcs.luau-lang.org/user-defined-type-functions.html),
more work still to come (including calling type functions from other
type functions), but adventurous folks wanting to experiment with it can
try it out by enabling `FFlag::LuauUserDefinedTypeFunctionsSyntax` and
`FFlag::LuauUserDefinedTypeFunction` in their local environment. Special
thanks to @joonyoo181 who built up all the initial infrastructure for
this during his internship!

## Miscellaneous changes

* Fix a compilation error on Ubuntu (fixes #1437)

---

Internal Contributors:

Co-authored-by: Aaron Weiss <aaronweiss@roblox.com>
Co-authored-by: Hunter Goldstein <hgoldstein@roblox.com>
Co-authored-by: Jeremy Yoo <jyoo@roblox.com>
Co-authored-by: Vighnesh Vijay <vvijay@roblox.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>

---------

Co-authored-by: Alexander McCord <amccord@roblox.com>
Co-authored-by: Andy Friesen <afriesen@roblox.com>
Co-authored-by: Vighnesh <vvijay@roblox.com>
Co-authored-by: Aviral Goel <agoel@roblox.com>
Co-authored-by: David Cope <dcope@roblox.com>
Co-authored-by: Lily Brown <lbrown@roblox.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
Co-authored-by: Junseo Yoo <jyoo@roblox.com>
2024-09-27 11:58:21 -07:00

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CMake
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# This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
if(EXT_PLATFORM_STRING)
include(EXTLuau.cmake)
return()
endif()
cmake_minimum_required(VERSION 3.0)
option(LUAU_BUILD_CLI "Build CLI" ON)
option(LUAU_BUILD_TESTS "Build tests" ON)
option(LUAU_BUILD_WEB "Build Web module" OFF)
option(LUAU_WERROR "Warnings as errors" OFF)
option(LUAU_STATIC_CRT "Link with the static CRT (/MT)" OFF)
option(LUAU_EXTERN_C "Use extern C for all APIs" OFF)
cmake_policy(SET CMP0054 NEW)
cmake_policy(SET CMP0091 NEW)
if(LUAU_STATIC_CRT)
cmake_minimum_required(VERSION 3.15)
set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
endif()
project(Luau LANGUAGES CXX C)
add_library(Luau.Common INTERFACE)
add_library(Luau.CLI.lib STATIC)
add_library(Luau.Ast STATIC)
add_library(Luau.Compiler STATIC)
add_library(Luau.Config STATIC)
add_library(Luau.Analysis STATIC)
add_library(Luau.EqSat STATIC)
add_library(Luau.CodeGen STATIC)
add_library(Luau.VM STATIC)
add_library(isocline STATIC)
if(LUAU_BUILD_CLI)
add_executable(Luau.Repl.CLI)
add_executable(Luau.Analyze.CLI)
add_executable(Luau.Ast.CLI)
add_executable(Luau.Reduce.CLI)
add_executable(Luau.Compile.CLI)
add_executable(Luau.Bytecode.CLI)
# This also adds target `name` on Linux/macOS and `name.exe` on Windows
set_target_properties(Luau.Repl.CLI PROPERTIES OUTPUT_NAME luau)
set_target_properties(Luau.Analyze.CLI PROPERTIES OUTPUT_NAME luau-analyze)
set_target_properties(Luau.Ast.CLI PROPERTIES OUTPUT_NAME luau-ast)
set_target_properties(Luau.Reduce.CLI PROPERTIES OUTPUT_NAME luau-reduce)
set_target_properties(Luau.Compile.CLI PROPERTIES OUTPUT_NAME luau-compile)
set_target_properties(Luau.Bytecode.CLI PROPERTIES OUTPUT_NAME luau-bytecode)
endif()
if(LUAU_BUILD_TESTS)
add_executable(Luau.UnitTest)
add_executable(Luau.Conformance)
add_executable(Luau.CLI.Test)
endif()
if(LUAU_BUILD_WEB)
add_executable(Luau.Web)
endif()
# Proxy target to make it possible to depend on private VM headers
add_library(Luau.VM.Internals INTERFACE)
include(Sources.cmake)
target_include_directories(Luau.Common INTERFACE Common/include)
target_compile_features(Luau.CLI.lib PUBLIC cxx_std_17)
target_link_libraries(Luau.CLI.lib PRIVATE Luau.Common)
target_compile_features(Luau.Ast PUBLIC cxx_std_17)
target_include_directories(Luau.Ast PUBLIC Ast/include)
target_link_libraries(Luau.Ast PUBLIC Luau.Common Luau.CLI.lib)
target_compile_features(Luau.Compiler PUBLIC cxx_std_17)
target_include_directories(Luau.Compiler PUBLIC Compiler/include)
target_link_libraries(Luau.Compiler PUBLIC Luau.Ast)
target_compile_features(Luau.Config PUBLIC cxx_std_17)
target_include_directories(Luau.Config PUBLIC Config/include)
target_link_libraries(Luau.Config PUBLIC Luau.Ast)
target_compile_features(Luau.Analysis PUBLIC cxx_std_17)
target_include_directories(Luau.Analysis PUBLIC Analysis/include)
target_link_libraries(Luau.Analysis PUBLIC Luau.Ast Luau.EqSat Luau.Config)
target_link_libraries(Luau.Analysis PRIVATE Luau.Compiler Luau.VM)
target_compile_features(Luau.EqSat PUBLIC cxx_std_17)
target_include_directories(Luau.EqSat PUBLIC EqSat/include)
target_link_libraries(Luau.EqSat PUBLIC Luau.Common)
target_compile_features(Luau.CodeGen PRIVATE cxx_std_17)
target_include_directories(Luau.CodeGen PUBLIC CodeGen/include)
target_link_libraries(Luau.CodeGen PRIVATE Luau.VM Luau.VM.Internals) # Code generation needs VM internals
target_link_libraries(Luau.CodeGen PUBLIC Luau.Common)
target_compile_features(Luau.VM PRIVATE cxx_std_11)
target_include_directories(Luau.VM PUBLIC VM/include)
target_link_libraries(Luau.VM PUBLIC Luau.Common)
target_include_directories(isocline PUBLIC extern/isocline/include)
target_include_directories(Luau.VM.Internals INTERFACE VM/src)
set(LUAU_OPTIONS)
if(MSVC)
list(APPEND LUAU_OPTIONS /D_CRT_SECURE_NO_WARNINGS) # We need to use the portable CRT functions.
list(APPEND LUAU_OPTIONS "/we4018") # Signed/unsigned mismatch
list(APPEND LUAU_OPTIONS "/we4388") # Also signed/unsigned mismatch
else()
list(APPEND LUAU_OPTIONS -Wall) # All warnings
list(APPEND LUAU_OPTIONS -Wimplicit-fallthrough)
list(APPEND LUAU_OPTIONS -Wsign-compare) # This looks to be included in -Wall for GCC but not clang
endif()
if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
list(APPEND LUAU_OPTIONS /MP) # Distribute single project compilation across multiple cores
endif()
if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
# Some gcc versions treat var in `if (type var = val)` as unused
# Some gcc versions treat variables used in constexpr if blocks as unused
list(APPEND LUAU_OPTIONS -Wno-unused)
endif()
# Enabled in CI; we should be warning free on our main compiler versions but don't guarantee being warning free everywhere
if(LUAU_WERROR)
if(MSVC)
list(APPEND LUAU_OPTIONS /WX) # Warnings are errors
else()
list(APPEND LUAU_OPTIONS -Werror) # Warnings are errors
endif()
endif()
if(LUAU_BUILD_WEB)
# add -fexceptions for emscripten to allow exceptions to be caught in C++
list(APPEND LUAU_OPTIONS -fexceptions)
endif()
set(ISOCLINE_OPTIONS)
if (NOT CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
list(APPEND ISOCLINE_OPTIONS -Wno-unused-function)
endif()
target_compile_options(Luau.Ast PRIVATE ${LUAU_OPTIONS})
target_compile_options(Luau.Analysis PRIVATE ${LUAU_OPTIONS})
target_compile_options(Luau.EqSat PRIVATE ${LUAU_OPTIONS})
target_compile_options(Luau.CLI.lib PRIVATE ${LUAU_OPTIONS})
target_compile_options(Luau.CodeGen PRIVATE ${LUAU_OPTIONS})
target_compile_options(Luau.VM PRIVATE ${LUAU_OPTIONS})
target_compile_options(isocline PRIVATE ${LUAU_OPTIONS} ${ISOCLINE_OPTIONS})
if(LUAU_EXTERN_C)
# enable extern "C" for VM (lua.h, lualib.h) and Compiler (luacode.h) to make Luau friendlier to use from non-C++ languages
# note that we enable LUA_USE_LONGJMP=1 as well; otherwise functions like luaL_error will throw C++ exceptions, which can't be done from extern "C" functions
target_compile_definitions(Luau.VM PUBLIC LUA_USE_LONGJMP=1)
target_compile_definitions(Luau.VM PUBLIC LUA_API=extern\"C\")
target_compile_definitions(Luau.Compiler PUBLIC LUACODE_API=extern\"C\")
target_compile_definitions(Luau.CodeGen PUBLIC LUACODEGEN_API=extern\"C\")
endif()
if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC" AND MSVC_VERSION GREATER_EQUAL 1924)
# disable partial redundancy elimination which regresses interpreter codegen substantially in VS2022:
# https://developercommunity.visualstudio.com/t/performance-regression-on-a-complex-interpreter-lo/1631863
set_source_files_properties(VM/src/lvmexecute.cpp PROPERTIES COMPILE_FLAGS /d2ssa-pre-)
endif()
if (NOT MSVC)
# disable support for math_errno which allows compilers to lower sqrt() into a single CPU instruction
target_compile_options(Luau.VM PRIVATE -fno-math-errno)
endif()
if(MSVC AND LUAU_BUILD_CLI)
# the default stack size that MSVC linker uses is 1 MB; we need more stack space in Debug because stack frames are larger
set_target_properties(Luau.Analyze.CLI PROPERTIES LINK_FLAGS_DEBUG /STACK:2097152)
set_target_properties(Luau.Repl.CLI PROPERTIES LINK_FLAGS_DEBUG /STACK:2097152)
endif()
# embed .natvis inside the library debug information
if(MSVC)
target_link_options(Luau.Ast INTERFACE /NATVIS:${CMAKE_CURRENT_SOURCE_DIR}/tools/natvis/Ast.natvis)
target_link_options(Luau.Analysis INTERFACE /NATVIS:${CMAKE_CURRENT_SOURCE_DIR}/tools/natvis/Analysis.natvis)
target_link_options(Luau.CodeGen INTERFACE /NATVIS:${CMAKE_CURRENT_SOURCE_DIR}/tools/natvis/CodeGen.natvis)
target_link_options(Luau.VM INTERFACE /NATVIS:${CMAKE_CURRENT_SOURCE_DIR}/tools/natvis/VM.natvis)
endif()
# make .natvis visible inside the solution
if(MSVC_IDE)
target_sources(Luau.Ast PRIVATE tools/natvis/Ast.natvis)
target_sources(Luau.Analysis PRIVATE tools/natvis/Analysis.natvis)
target_sources(Luau.CodeGen PRIVATE tools/natvis/CodeGen.natvis)
target_sources(Luau.VM PRIVATE tools/natvis/VM.natvis)
endif()
# On Windows and Android threads are provided, on Linux/Mac/iOS we use pthreads
add_library(osthreads INTERFACE)
if(CMAKE_SYSTEM_NAME MATCHES "Linux|Darwin|iOS")
target_link_libraries(osthreads INTERFACE "-lpthread")
endif ()
if(LUAU_BUILD_CLI)
target_compile_options(Luau.Repl.CLI PRIVATE ${LUAU_OPTIONS})
target_compile_options(Luau.Reduce.CLI PRIVATE ${LUAU_OPTIONS})
target_compile_options(Luau.Analyze.CLI PRIVATE ${LUAU_OPTIONS})
target_compile_options(Luau.Ast.CLI PRIVATE ${LUAU_OPTIONS})
target_compile_options(Luau.Compile.CLI PRIVATE ${LUAU_OPTIONS})
target_compile_options(Luau.Bytecode.CLI PRIVATE ${LUAU_OPTIONS})
target_include_directories(Luau.Repl.CLI PRIVATE extern extern/isocline/include)
target_link_libraries(Luau.Repl.CLI PRIVATE Luau.Compiler Luau.Config Luau.CodeGen Luau.VM Luau.CLI.lib isocline)
target_link_libraries(Luau.Repl.CLI PRIVATE osthreads)
target_link_libraries(Luau.Analyze.CLI PRIVATE osthreads)
target_link_libraries(Luau.Analyze.CLI PRIVATE Luau.Analysis Luau.CLI.lib)
target_link_libraries(Luau.Ast.CLI PRIVATE Luau.Ast Luau.Analysis Luau.CLI.lib)
target_compile_features(Luau.Reduce.CLI PRIVATE cxx_std_17)
target_include_directories(Luau.Reduce.CLI PUBLIC Reduce/include)
target_link_libraries(Luau.Reduce.CLI PRIVATE Luau.Common Luau.Ast Luau.Analysis Luau.CLI.lib)
target_link_libraries(Luau.Compile.CLI PRIVATE Luau.Compiler Luau.VM Luau.CodeGen Luau.CLI.lib)
target_link_libraries(Luau.Bytecode.CLI PRIVATE Luau.Compiler Luau.VM Luau.CodeGen Luau.CLI.lib)
endif()
if(LUAU_BUILD_TESTS)
target_compile_options(Luau.UnitTest PRIVATE ${LUAU_OPTIONS})
target_compile_definitions(Luau.UnitTest PRIVATE DOCTEST_CONFIG_DOUBLE_STRINGIFY)
target_include_directories(Luau.UnitTest PRIVATE extern)
target_link_libraries(Luau.UnitTest PRIVATE Luau.Analysis Luau.Compiler Luau.CodeGen)
target_compile_options(Luau.Conformance PRIVATE ${LUAU_OPTIONS})
target_compile_definitions(Luau.Conformance PRIVATE DOCTEST_CONFIG_DOUBLE_STRINGIFY)
target_include_directories(Luau.Conformance PRIVATE extern)
target_link_libraries(Luau.Conformance PRIVATE Luau.Analysis Luau.Compiler Luau.CodeGen Luau.VM)
if(CMAKE_SYSTEM_NAME MATCHES "Android|iOS")
set(LUAU_CONFORMANCE_SOURCE_DIR "Client/Luau/tests/conformance")
else ()
file(REAL_PATH "tests/conformance" LUAU_CONFORMANCE_SOURCE_DIR)
endif ()
target_compile_definitions(Luau.Conformance PRIVATE LUAU_CONFORMANCE_SOURCE_DIR="${LUAU_CONFORMANCE_SOURCE_DIR}")
target_compile_options(Luau.CLI.Test PRIVATE ${LUAU_OPTIONS})
target_include_directories(Luau.CLI.Test PRIVATE extern CLI)
target_link_libraries(Luau.CLI.Test PRIVATE Luau.Compiler Luau.Config Luau.CodeGen Luau.VM Luau.CLI.lib isocline)
target_link_libraries(Luau.CLI.Test PRIVATE osthreads)
endif()
if(LUAU_BUILD_WEB)
target_compile_options(Luau.Web PRIVATE ${LUAU_OPTIONS})
target_link_libraries(Luau.Web PRIVATE Luau.Compiler Luau.VM)
# declare exported functions to emscripten
target_link_options(Luau.Web PRIVATE -sEXPORTED_FUNCTIONS=['_executeScript'] -sEXPORTED_RUNTIME_METHODS=['ccall','cwrap'])
# add -fexceptions for emscripten to allow exceptions to be caught in C++
target_link_options(Luau.Web PRIVATE -fexceptions)
# the output is a single .js file with an embedded wasm blob
target_link_options(Luau.Web PRIVATE -sSINGLE_FILE=1)
endif()
add_subdirectory(fuzz)
# validate dependencies for internal libraries
foreach(LIB Luau.Ast Luau.Compiler Luau.Config Luau.Analysis Luau.EqSat Luau.CodeGen Luau.VM)
if(TARGET ${LIB})
get_target_property(DEPENDS ${LIB} LINK_LIBRARIES)
if(LIB MATCHES "CodeGen|VM" AND DEPENDS MATCHES "Ast|Analysis|Config|Compiler")
message(FATAL_ERROR ${LIB} " is a runtime component but it depends on one of the offline components")
endif()
if(LIB MATCHES "Ast|EqSat|Compiler" AND DEPENDS MATCHES "CodeGen|VM")
message(FATAL_ERROR ${LIB} " is an offline component but it depends on one of the runtime components")
endif()
if(LIB MATCHES "Ast|Compiler" AND DEPENDS MATCHES "Analysis|Config")
message(FATAL_ERROR ${LIB} " is a compiler component but it depends on one of the analysis components")
endif()
endif()
endforeach()
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