forked from NUDT-compiler/nudt-compiler-cpp
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
84 lines
2.2 KiB
84 lines
2.2 KiB
// 解析帮助、输入文件和输出阶段选项。
|
|
|
|
#include "utils/CLI.h"
|
|
|
|
#include <cstring>
|
|
#include <stdexcept>
|
|
#include <string>
|
|
|
|
#include "utils/Log.h"
|
|
|
|
CLIOptions ParseCLI(int argc, char** argv) {
|
|
CLIOptions opt;
|
|
bool explicit_emit = false;
|
|
|
|
if (argc <= 1) {
|
|
throw std::runtime_error(FormatError(
|
|
"cli",
|
|
"用法: compiler [--help] [--emit-parse-tree] [--emit-ir] [--emit-asm] <input.sy>"));
|
|
}
|
|
|
|
for (int i = 1; i < argc; ++i) {
|
|
const char* arg = argv[i];
|
|
if (std::strcmp(arg, "-h") == 0 || std::strcmp(arg, "--help") == 0) {
|
|
opt.show_help = true;
|
|
return opt;
|
|
}
|
|
|
|
if (std::strcmp(arg, "--emit-parse-tree") == 0) {
|
|
if (!explicit_emit) {
|
|
opt.emit_parse_tree = false;
|
|
opt.emit_ir = false;
|
|
opt.emit_asm = false;
|
|
explicit_emit = true;
|
|
}
|
|
opt.emit_parse_tree = true;
|
|
continue;
|
|
}
|
|
|
|
if (std::strcmp(arg, "--emit-ir") == 0) {
|
|
if (!explicit_emit) {
|
|
opt.emit_parse_tree = false;
|
|
opt.emit_ir = false;
|
|
opt.emit_asm = false;
|
|
explicit_emit = true;
|
|
}
|
|
opt.emit_ir = true;
|
|
continue;
|
|
}
|
|
|
|
if (std::strcmp(arg, "--emit-asm") == 0) {
|
|
if (!explicit_emit) {
|
|
opt.emit_parse_tree = false;
|
|
opt.emit_ir = false;
|
|
opt.emit_asm = false;
|
|
explicit_emit = true;
|
|
}
|
|
opt.emit_asm = true;
|
|
continue;
|
|
}
|
|
|
|
if (arg[0] == '-') {
|
|
throw std::runtime_error(
|
|
FormatError("cli", std::string("未知参数: ") + arg +
|
|
"（使用 --help 查看用法）"));
|
|
}
|
|
|
|
if (!opt.input.empty()) {
|
|
throw std::runtime_error(FormatError(
|
|
"cli", "参数过多：当前只支持 1 个输入文件（使用 --help 查看用法）"));
|
|
}
|
|
opt.input = arg;
|
|
}
|
|
|
|
if (opt.input.empty() && !opt.show_help) {
|
|
throw std::runtime_error(
|
|
FormatError("cli", "缺少输入文件：请提供 <input.sy>（使用 --help 查看用法）"));
|
|
}
|
|
if (!opt.emit_parse_tree && !opt.emit_ir && !opt.emit_asm) {
|
|
throw std::runtime_error(FormatError(
|
|
"cli", "未选择任何输出：请使用 --emit-parse-tree / --emit-ir / --emit-asm"));
|
|
}
|
|
return opt;
|
|
}
|