Initial commit

cli/cl.cpp

@@ -0,0 +1,50 @@
+#include "elna/cli/cl.hpp"
+#include "elna/backend/target.hpp"
+#include "elna/source/semantic.hpp"
+#include "elna/source/optimizer.hpp"
+#include <iostream>
+
+namespace elna::cli
+{
+    void print_error(const std::unique_ptr<source::error>& compile_error)
+    {
+        std::cerr << compile_error->path().string() << ":"
+            << compile_error->line() << ':' << compile_error->column()
+            << ": " << compile_error->what() << std::endl;
+    }
+
+    int compile(const std::filesystem::path& in_file, const std::filesystem::path& out_file)
+    {
+        try
+        {
+            source::result<source::lexer> lex_result = source::tokenize(in_file);
+
+            if (lex_result.has_errors())
+            {
+                print_errors(lex_result.errors().cbegin(), lex_result.errors().cend());
+                return 1;
+            }
+            source::parser parser{ std::move(lex_result.success()) };
+            auto ast = parser.parse();
+            if (ast == nullptr)
+            {
+                print_errors(parser.errors().cbegin(), parser.errors().cend());
+                return 2;
+            }
+            auto global_scope = std::make_shared<source::symbol_table>();
+            source::name_analysis_visitor(global_scope).visit(ast.get());
+            source::type_analysis_visitor().visit(ast.get());
+            source::allocator_visitor(global_scope).visit(ast.get());
+
+            source::intermediate_code_generator intermediate_code_generator{ global_scope };
+            intermediate_code_generator.visit(ast.get());
+
+            riscv::riscv32_elf(ast.get(), intermediate_code_generator, global_scope, out_file);
+        }
+        catch (std::ios_base::failure&)
+        {
+            return 3;
+        }
+        return 0;
+    }
+}

cli/main.cpp

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+#include "elna/cli/cl.hpp"
+
+#include <filesystem>
+#include <iostream>
+#include <boost/program_options.hpp>
+
+int main(int argc, char **argv)
+{
+    boost::program_options::options_description visible{ "Allowed options" };
+    boost::program_options::options_description description;
+    boost::program_options::positional_options_description positional;
+    boost::program_options::variables_map variables_map;
+
+    visible.add_options()
+        ("help", "Print this help message")
+        ("output,o", boost::program_options::value<std::filesystem::path>(), "Output object file")
+    ;
+    description.add_options()
+        ("input", boost::program_options::value<std::filesystem::path>()->required())
+    ;
+    description.add(visible);
+    positional.add("input", 1);
+
+    auto parsed = boost::program_options::command_line_parser(argc, argv)
+        .options(description).positional(positional)
+        .run();
+    boost::program_options::store(parsed, variables_map);
+    boost::program_options::notify(variables_map);
+
+    if (variables_map.count("help"))
+    {
+        std::cout << description << std::endl;
+        return 0;
+    }
+    const auto in_file = variables_map["input"].as<std::filesystem::path>();
+    std::filesystem::path out_file;
+
+    if (variables_map.count("output"))
+    {
+        out_file = variables_map["output"].as<std::filesystem::path>();
+    }
+    else
+    {
+        out_file = in_file.filename().replace_extension(".o");
+    }
+    return elna::cli::compile(in_file, out_file);
+}