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cmake_minimum_required(VERSION 3.20)
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project(compiler LANGUAGES C CXX)
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# 统一 C++ 标准（按实验环境可调整）
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set(CMAKE_CXX_STANDARD 17)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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set(CMAKE_CXX_EXTENSIONS OFF)
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# 可执行文件输出目录：统一放到 <build>/bin 下（避免落在 build/src/ 等子目录）
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")
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foreach(cfg IN ITEMS Debug Release RelWithDebInfo MinSizeRel)
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string(TOUPPER "${cfg}" cfg_upper)
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set("CMAKE_RUNTIME_OUTPUT_DIRECTORY_${cfg_upper}" "${CMAKE_BINARY_DIR}/bin")
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endforeach()
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# ANTLR 生成代码目录约定（不进仓库，生成在构建目录）
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set(ANTLR4_GENERATED_DIR "${CMAKE_BINARY_DIR}/generated/antlr4")
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# 统一的编译/包含目录选项（子模块复用）
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add_library(build_options INTERFACE)
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target_compile_features(build_options INTERFACE cxx_std_17)
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target_include_directories(build_options INTERFACE
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"${PROJECT_SOURCE_DIR}/include"
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"${PROJECT_SOURCE_DIR}/src"
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"${ANTLR4_GENERATED_DIR}"
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# 兼容未使用 -Xexact-output-dir 时 ANTLR 可能生成到的子目录结构
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"${ANTLR4_GENERATED_DIR}/src/antlr4"
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)
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option(COMPILER_ENABLE_WARNINGS "Enable common compiler warnings" ON)
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if(COMPILER_ENABLE_WARNINGS)
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if(MSVC)
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target_compile_options(build_options INTERFACE /W4)
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else()
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target_compile_options(build_options INTERFACE -Wall -Wextra -Wpedantic)
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endif()
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endif()
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option(COMPILER_PARSE_ONLY "Build only the frontend parser pipeline" OFF)
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# 使用仓库内 third_party 提供的 ANTLR4 C++ runtime（较新版本）
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# third_party 目录结构以仓库为准：runtime 源码位于 third_party/antlr4-runtime-4.13.2/runtime/src
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set(ANTLR4_RUNTIME_SRC_DIR "${PROJECT_SOURCE_DIR}/third_party/antlr4-runtime-4.13.2/runtime/src")
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add_library(antlr4_runtime STATIC)
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target_compile_features(antlr4_runtime PUBLIC cxx_std_17)
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target_include_directories(antlr4_runtime PUBLIC
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"${ANTLR4_RUNTIME_SRC_DIR}"
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"${ANTLR4_RUNTIME_SRC_DIR}/atn"
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"${ANTLR4_RUNTIME_SRC_DIR}/dfa"
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"${ANTLR4_RUNTIME_SRC_DIR}/internal"
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"${ANTLR4_RUNTIME_SRC_DIR}/misc"
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"${ANTLR4_RUNTIME_SRC_DIR}/support"
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"${ANTLR4_RUNTIME_SRC_DIR}/tree"
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"${ANTLR4_RUNTIME_SRC_DIR}/tree/pattern"
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"${ANTLR4_RUNTIME_SRC_DIR}/tree/xpath"
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)
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file(GLOB_RECURSE ANTLR4_RUNTIME_SOURCES CONFIGURE_DEPENDS
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"${ANTLR4_RUNTIME_SRC_DIR}/*.cpp"
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"${ANTLR4_RUNTIME_SRC_DIR}/atn/*.cpp"
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"${ANTLR4_RUNTIME_SRC_DIR}/dfa/*.cpp"
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"${ANTLR4_RUNTIME_SRC_DIR}/internal/*.cpp"
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"${ANTLR4_RUNTIME_SRC_DIR}/misc/*.cpp"
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"${ANTLR4_RUNTIME_SRC_DIR}/support/*.cpp"
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"${ANTLR4_RUNTIME_SRC_DIR}/tree/*.cpp"
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"${ANTLR4_RUNTIME_SRC_DIR}/tree/pattern/*.cpp"
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"${ANTLR4_RUNTIME_SRC_DIR}/tree/xpath/*.cpp"
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)
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target_sources(antlr4_runtime PRIVATE ${ANTLR4_RUNTIME_SOURCES})
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find_package(Threads REQUIRED)
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target_link_libraries(antlr4_runtime PUBLIC Threads::Threads)
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set(ANTLR4_RUNTIME_TARGET antlr4_runtime)
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add_subdirectory(src)
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