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#
#   http://www.apache.org/licenses/LICENSE-2.0
#
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if(USE_ANTLR)
  set(RELAY_PARSER_DIR
    ${CMAKE_CURRENT_SOURCE_DIR}/python/tvm/relay/grammar)

  set(RELAY_PARSER
    ${RELAY_PARSER_DIR}/py3/RelayVisitor.py
    ${RELAY_PARSER_DIR}/py3/RelayParser.py
    ${RELAY_PARSER_DIR}/py3/RelayLexer.py)

  # Generate ANTLR grammar for parsing.
  add_custom_command(OUTPUT ${RELAY_PARSER}
    COMMAND antlr4 -visitor -no-listener -Dlanguage=Python3 ${RELAY_PARSER_DIR}/Relay.g4 -o ${RELAY_PARSER_DIR}/py3
    DEPENDS ${RELAY_PARSER_DIR}/Relay.g4
    WORKING_DIRECTORY ${RELAY_PARSER_DIR})

  add_custom_target(relay_parser ALL DEPENDS ${RELAY_PARSER})
endif(USE_ANTLR)