# Copyright Vladimir Prus 2004.
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt
# or copy at http://www.boost.org/LICENSE_1_0.txt)

# Importing common is needed because the rules we inherit here depend on it.
# That is nasty.
import common ;
import errors ;
import feature ;
import clang ;
import msvc ;
import os ;
import toolset ;
import generators ;
import type ;
import path ;
import set ;

feature.extend-subfeature toolset clang : platform : win ;

toolset.inherit-generators clang-win <toolset>clang <toolset-clang:platform>win : msvc ;
toolset.inherit-flags clang-win : msvc : <debug-symbols>on/<debug-store>object <asynch-exceptions>off <asynch-exceptions>on : YLOPTION ;
toolset.inherit-rules clang-win : msvc ;

# Override default do-nothing generators.
generators.override clang-win.compile.c.pch   : pch.default-c-pch-generator   ;
generators.override clang-win.compile.c++.pch : pch.default-cpp-pch-generator ;
generators.override clang-win.compile.rc : rc.compile.resource ;
generators.override clang-win.compile.mc : mc.compile ;

toolset.flags clang-win.compile PCH_SOURCE <pch>on : <pch-source> ;

toolset.flags clang-win.compile CFLAGS <debug-symbols>on/<debug-store>object : "" ;

# Initializes the intel toolset for windows
rule init ( version ? :     # the compiler version
            command * :     # the command to invoke the compiler itself
            options *       # Additional option: <compatibility>
                            # either 'vc6', 'vc7', 'vc7.1'
                            # or 'native'(default).
          )
{
    local compatibility =
      [ feature.get-values <compatibility> : $(options) ] ;
    local condition = [  common.check-init-parameters clang-win
        : version $(version) : compatibility $(compatibility) ] ;
        
    if ! $(compatibility)
    {
        import errors ;
        errors.error "Please set <compatibility> property for visual studio version!" ;
    }
    local vc_version = [ MATCH vc([0-9]+) : $(compatibility) ] ;
    if ! $(vc_version)
    {
        errors.user-error "Invalid value for compatibility option:"
            $(compatibility) ;
    }
        
    local m = [ MATCH ([0-9]+).* : $(version) ] ;
    local major = $(m[1]) ;
    
    command = [ common.get-invocation-command clang-win : clang-cl.exe :
        $(command) ] ;
        
    common.handle-options clang-win : $(condition) : $(command) : $(options) ;
    
    local setup ;
    setup = [ get-visual-studio-vcvars $(vc_version) ] ; # Get visual studio vcvars bat file path
    
    local target_types ;
    if [ MATCH ^(AMD64) : [ os.environ PROCESSOR_ARCHITECTURE ] ]
    {
        target_types = x86 amd64 ;
    }
    else
    {
        target_types = x86 x86_amd64 ;
    }
    
    for local c in $(target_types)
    {
        local cpu-conditions ;
        local setup-call ;
        setup-call = "call \""$(setup)"\" $(c) > nul " ;
        cpu-conditions = $(condition)/$(.cpu-arch-$(c)) ;
        
        if [ os.name ] = NT
        {
            setup-call = $(setup-call)"
    " ;
        }
        else
        {
            setup-call = "cmd /S /C "$(setup-call)" \"&&\" " ;
        }
        
        if $(.debug-configuration)
        {
            for local cpu-condition in $(cpu-conditions)
            {
                ECHO "notice: [clang-cfg] condition: '$(cpu-condition)', setup: '$(setup-call)'" ;
            }
        }
        
        local compiler ;
        compiler = [ path.native $(command) ] ;
        compiler = "\"$(compiler)\"" ;

        toolset.flags clang-win.compile .CC $(cpu-conditions) : $(setup-call)$(compiler) ;
        toolset.flags clang-win.link .LD $(cpu-conditions) : $(setup-call)link /nologo ;
        toolset.flags clang-win.archive .LD $(cpu-conditions) : $(setup-call)link /lib /nologo ;
        toolset.flags clang-win.link .MT $(cpu-conditions) : $(setup-call)mt -nologo ;
        toolset.flags clang-win.compile .MC $(cpu-conditions) : $(setup-call)mc ;
        toolset.flags clang-win.compile .RC $(cpu-conditions) : $(setup-call)rc ;
    }


    local C++FLAGS ;
    
    if $(vc_version) = 10
    {
        C++FLAGS += -fmsc-version=1600 ;
    }
    else if $(vc_version) = 11
    {
        C++FLAGS += -fmsc-version=1700 ;
    }
    else if $(vc_version) = 12
    {
        C++FLAGS += -fmsc-version=1800 ;
    }

    toolset.flags clang-win CFLAGS $(condition) : $(C++FLAGS) ;

    msvc.configure-version-specific clang-win : $(vc_version) : $(condition) ;
}

local rule get-visual-studio-vcvars ( version )
{
    local env_variable_name ;
    env_variable_name = "VS"$(version:U)"0COMNTOOLS" ;
    
    local vc-path = [ os.environ $(env_variable_name) ] ;
    vc-path = [ path.join $(vc-path) "../../VC/vcvarsall.bat" ] ;
    path.native $(vc-path) ;
}


if [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ]
{
    .debug-configuration = true ;
}

# Copied from msvc.jam
# Supported CPU architectures.
.cpu-arch-x86 =
    <architecture>/<address-model>
    <architecture>/<address-model>32
    <architecture>x86/<address-model>
    <architecture>x86/<address-model>32 ;

.cpu-arch-amd64 =
    <architecture>/<address-model>64
    <architecture>x86/<address-model>64 ;

.cpu-arch-x86_amd64 =
    <architecture>/<address-model>64
    <architecture>x86/<address-model>64 ;

# toolset.flags clang-win.link LIBRARY_OPTION <toolset>clang : "" ;

toolset.flags clang-win YLOPTION ;