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set(ANTLR_VERSION @ANTLR_VERSION@)
@PACKAGE_INIT@
if (NOT ANTLR4_CPP_GENERATED_SRC_DIR)
set(ANTLR4_GENERATED_SRC_DIR ${CMAKE_BINARY_DIR}/antlr4_generated_src)
endif()
FIND_PACKAGE(Java COMPONENTS Runtime REQUIRED)
#
# The ANTLR generator will output the following files given the input file f.g4
#
# Input -> f.g4
# Output -> f.h
# -> f.cpp
#
# the following files will only be produced if there is a parser contained
# Flag -visitor active
# Output -> <f>BaseVisitor.h
# -> <f>BaseVisitor.cpp
# -> <f>Visitor.h
# -> <f>Visitor.cpp
#
# Flag -listener active
# Output -> <f>BaseListener.h
# -> <f>BaseListener.cpp
# -> <f>Listener.h
# -> <f>Listener.cpp
#
# See documentation in markup
#
function(antlr4_generate
Antlr4_ProjectTarget
Antlr4_InputFile
Antlr4_GeneratorType
)
set( Antlr4_GeneratedSrcDir ${ANTLR4_GENERATED_SRC_DIR}/${Antlr4_ProjectTarget} )
get_filename_component(Antlr4_InputFileBaseName ${Antlr4_InputFile} NAME_WE )
list( APPEND Antlr4_GeneratorStatusMessage "Common Include-, Source- and Tokenfiles" )
if ( ${Antlr4_GeneratorType} STREQUAL "LEXER")
set(Antlr4_LexerBaseName "${Antlr4_InputFileBaseName}")
set(Antlr4_ParserBaseName "")
else()
if ( ${Antlr4_GeneratorType} STREQUAL "PARSER")
set(Antlr4_LexerBaseName "")
set(Antlr4_ParserBaseName "${Antlr4_InputFileBaseName}")
else()
if ( ${Antlr4_GeneratorType} STREQUAL "BOTH")
set(Antlr4_LexerBaseName "${Antlr4_InputFileBaseName}Lexer")
set(Antlr4_ParserBaseName "${Antlr4_InputFileBaseName}Parser")
else()
message(FATAL_ERROR "The third parameter must be LEXER, PARSER or BOTH")
endif ()
endif ()
endif ()
# Prepare list of generated targets
list( APPEND Antlr4_GeneratedTargets "${Antlr4_GeneratedSrcDir}/${Antlr4_InputFileBaseName}.tokens" )
list( APPEND Antlr4_GeneratedTargets "${Antlr4_GeneratedSrcDir}/${Antlr4_InputFileBaseName}.interp" )
list( APPEND DependentTargets "${Antlr4_GeneratedSrcDir}/${Antlr4_InputFileBaseName}.tokens" )
if ( NOT ${Antlr4_LexerBaseName} STREQUAL "" )
list( APPEND Antlr4_GeneratedTargets "${Antlr4_GeneratedSrcDir}/${Antlr4_LexerBaseName}.h" )
list( APPEND Antlr4_GeneratedTargets "${Antlr4_GeneratedSrcDir}/${Antlr4_LexerBaseName}.cpp" )
endif ()
if ( NOT ${Antlr4_ParserBaseName} STREQUAL "" )
list( APPEND Antlr4_GeneratedTargets "${Antlr4_GeneratedSrcDir}/${Antlr4_ParserBaseName}.h" )
list( APPEND Antlr4_GeneratedTargets "${Antlr4_GeneratedSrcDir}/${Antlr4_ParserBaseName}.cpp" )
endif ()
# process optional arguments ...
if ( ( ARGC GREATER_EQUAL 4 ) AND ARGV3 )
set(Antlr4_BuildListenerOption "-listener")
list( APPEND Antlr4_GeneratedTargets "${Antlr4_GeneratedSrcDir}/${Antlr4_InputFileBaseName}BaseListener.h" )
list( APPEND Antlr4_GeneratedTargets "${Antlr4_GeneratedSrcDir}/${Antlr4_InputFileBaseName}BaseListener.cpp" )
list( APPEND Antlr4_GeneratedTargets "${Antlr4_GeneratedSrcDir}/${Antlr4_InputFileBaseName}Listener.h" )
list( APPEND Antlr4_GeneratedTargets "${Antlr4_GeneratedSrcDir}/${Antlr4_InputFileBaseName}Listener.cpp" )
list( APPEND Antlr4_GeneratorStatusMessage ", Listener Include- and Sourcefiles" )
else()
set(Antlr4_BuildListenerOption "-no-listener")
endif ()
if ( ( ARGC GREATER_EQUAL 5 ) AND ARGV4 )
set(Antlr4_BuildVisitorOption "-visitor")
list( APPEND Antlr4_GeneratedTargets "${Antlr4_GeneratedSrcDir}/${Antlr4_InputFileBaseName}BaseVisitor.h" )
list( APPEND Antlr4_GeneratedTargets "${Antlr4_GeneratedSrcDir}/${Antlr4_InputFileBaseName}BaseVisitor.cpp" )
list( APPEND Antlr4_GeneratedTargets "${Antlr4_GeneratedSrcDir}/${Antlr4_InputFileBaseName}Visitor.h" )
list( APPEND Antlr4_GeneratedTargets "${Antlr4_GeneratedSrcDir}/${Antlr4_InputFileBaseName}Visitor.cpp" )
list( APPEND Antlr4_GeneratorStatusMessage ", Visitor Include- and Sourcefiles" )
else()
set(Antlr4_BuildVisitorOption "-no-visitor")
endif ()
if ( (ARGC GREATER_EQUAL 6 ) AND (NOT ${ARGV5} STREQUAL "") )
set(Antlr4_NamespaceOption "-package;${ARGV5}")
list( APPEND Antlr4_GeneratorStatusMessage " in Namespace ${ARGV5}" )
else()
set(Antlr4_NamespaceOption "")
endif ()
if ( (ARGC GREATER_EQUAL 7 ) AND (NOT ${ARGV6} STREQUAL "") )
set(Antlr4_AdditionalDependencies ${ARGV6})
else()
set(Antlr4_AdditionalDependencies "")
endif ()
if ( (ARGC GREATER_EQUAL 8 ) AND (NOT ${ARGV7} STREQUAL "") )
set(Antlr4_LibOption "-lib;${ARGV7}")
list( APPEND Antlr4_GeneratorStatusMessage " using Library ${ARGV7}" )
else()
set(Antlr4_LibOption "")
endif ()
if(NOT Java_FOUND)
message(FATAL_ERROR "Java is required to process grammar or lexer files! - Use 'FIND_PACKAGE(Java COMPONENTS Runtime REQUIRED)'")
endif()
if(NOT EXISTS "${ANTLR4_JAR_LOCATION}")
message(FATAL_ERROR "Unable to find antlr tool. ANTLR4_JAR_LOCATION:${ANTLR4_JAR_LOCATION}")
endif()
# The call to generate the files
add_custom_command(
OUTPUT ${Antlr4_GeneratedTargets}
# Remove target directory
COMMAND
${CMAKE_COMMAND} -E remove_directory ${Antlr4_GeneratedSrcDir}
# Create target directory
COMMAND
${CMAKE_COMMAND} -E make_directory ${Antlr4_GeneratedSrcDir}
COMMAND
# Generate files
"${Java_JAVA_EXECUTABLE}" -jar "${ANTLR4_JAR_LOCATION}" -Werror -Dlanguage=Cpp ${Antlr4_BuildListenerOption} ${Antlr4_BuildVisitorOption} ${Antlr4_LibOption} ${ANTLR4_GENERATED_OPTIONS} -o "${Antlr4_GeneratedSrcDir}" ${Antlr4_NamespaceOption} "${Antlr4_InputFile}"
WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
MAIN_DEPENDENCY "${Antlr4_InputFile}"
DEPENDS ${Antlr4_AdditionalDependencies}
)
# set output variables in parent scope
set( ANTLR4_INCLUDE_DIR_${Antlr4_ProjectTarget} ${Antlr4_GeneratedSrcDir} PARENT_SCOPE)
set( ANTLR4_SRC_FILES_${Antlr4_ProjectTarget} ${Antlr4_GeneratedTargets} PARENT_SCOPE)
set( ANTLR4_TOKEN_FILES_${Antlr4_ProjectTarget} ${DependentTargets} PARENT_SCOPE)
set( ANTLR4_TOKEN_DIRECTORY_${Antlr4_ProjectTarget} ${Antlr4_GeneratedSrcDir} PARENT_SCOPE)
# export generated cpp files into list
foreach(generated_file ${Antlr4_GeneratedTargets})
if (NOT CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
set_source_files_properties(
${generated_file}
PROPERTIES
COMPILE_FLAGS -Wno-overloaded-virtual
)
endif ()
if (CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
set_source_files_properties(
${generated_file}
PROPERTIES
COMPILE_FLAGS -wd4251
)
endif ()
endforeach(generated_file)
message(STATUS "Antlr4 ${Antlr4_ProjectTarget} - Building " ${Antlr4_GeneratorStatusMessage} )
endfunction()
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