build.bat

@rem Builds the default library for every memory model, since a program links the build that
@rem matches its own -mm= and there is deliberately no fallback to another model's copy.
@rem
@rem   build.bat                -> release and debug, all three models
@rem   build.bat release        -> release only, all three models
@rem   build.bat release rc     -> just that one
@rem
@rem Set TSLANG_TOOLCHAIN=llvm to build the C++ wrappers with clang-cl/llvm-lib instead
@rem of cl/lib.exe; everything else (flags, layout, output tree) is identical, so the two
@rem builds are interchangeable and overwrite each other in lib\ and dll\.
@rem
@rem Set TSLANG_ARCH=x86 to build the 32-bit tree instead of the default x64 one, e.g.
@rem   set TSLANG_ARCH=x86
@rem   build.bat release gc
@rem Like TSLANG_TOOLCHAIN, it is an environment variable, not a positional argument -
@rem %1/%2 stay "mode model" either way. x86 stages into lib\i386\pc\windows\msvc\... and
@rem dll\i386\..., alongside the x64 tree (lib\x86_64\pc\windows\msvc\...), and needs the x86
@rem Boehm GC prerequisite (see README.md).
@rem
@rem Set TSLANG_DEBUG_CRT=/MT to build the debug archive against the release C runtime, for a
@rem package whose runtime/collector/LLVM libraries are all release builds (the compiler's
@rem release zip). The default, /MTd, matches a debug tslang build. See scripts\build_core.bat.
@rem
@rem See tslang/include/TypeScript/Defines.h for the resulting layout:
@rem __build\defaultlib\{lib,dll}\<arch>\<vendor>\<os>\<env>\{debug,release}\{gc,rc,none}, as
@rem tslang --print-default-lib-dir names each folder, and the declarations at the defaultlib root.

if /I "%TSLANG_TOOLCHAIN%" == "llvm" (
    set "BUILD_SCRIPT=scripts\build_llvm.bat"
) else (
    set "BUILD_SCRIPT=scripts\build_vs.bat"
)

rem Not inside a ( ) block: there %errorlevel% is expanded when the block is read, before the
rem build runs, so a failed single-model build returned 0.
if "%2" == "" goto all_models
cmd /c %BUILD_SCRIPT% %1 %2
exit /b %errorlevel%
:all_models

if "%1" == "debug" (
    call :build_all_models debug
) else if "%1" == "release" (
    call :build_all_models release
) else (
    call :build_all_models release
    if errorlevel 1 exit /b 1
    call :build_all_models debug
)
exit /b %errorlevel%

:build_all_models
rem Each model runs in its own cmd.exe child (via "cmd /c", not "call") so
rem vcvars64.bat's PATH/INCLUDE/LIB growth doesn't accumulate across models -
rem calling it 3x in one process eventually trips cmd's line-length limit
rem ("The input line is too long"), which silently aborts that model's build
rem partway through and leaves its subfolder uncopied.
cmd /c %BUILD_SCRIPT% %1 gc
if errorlevel 1 exit /b 1
cmd /c %BUILD_SCRIPT% %1 rc
if errorlevel 1 exit /b 1
cmd /c %BUILD_SCRIPT% %1 none
if errorlevel 1 exit /b 1
exit /b 0