427 lines
14 KiB
C++
427 lines
14 KiB
C++
#include <compiler.h>
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fn void compile(Arena* arena, Options options)
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{
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auto base_allocation_type_count = i128_offset + // 64 * 2 for basic integer types
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2 + // u128, s128
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2; // void, noreturn
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auto base_type_allocation = arena_allocate<Type>(arena, base_allocation_type_count);
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auto* type_it = base_type_allocation.pointer;
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bool signs[] = {false, true};
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Type* previous = 0;
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for (bool sign: signs)
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{
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for (u32 bit_index = 0; bit_index < 64; bit_index += 1)
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{
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auto bit_count = bit_index + 1;
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auto first_digit = (u8)(bit_count < 10 ? bit_count % 10 + '0' : bit_count / 10 + '0');
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auto second_digit = (u8)(bit_count > 9 ? bit_count % 10 + '0' : 0);
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u8 name_buffer[] = { u8(sign ? 's' : 'u'), first_digit, second_digit };
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u64 name_length = 2 + (bit_count > 9);
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auto name_stack = String{name_buffer, name_length};
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auto name = arena_duplicate_string(arena, name_stack);
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*type_it = {
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.integer = {
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.bit_count = bit_count,
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.is_signed = sign,
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},
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.id = TypeId::integer,
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.name = name,
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};
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if (previous) previous->next = type_it;
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previous = type_it;
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type_it += 1;
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}
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}
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for (bool sign: signs)
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{
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auto name = sign ? string_literal("s128") : string_literal("u128");
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*type_it = {
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.integer = {
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.bit_count = 128,
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.is_signed = sign,
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},
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.id = TypeId::integer,
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.name = name,
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.next = previous,
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};
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if (previous) previous->next = type_it;
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previous = type_it;
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type_it += 1;
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}
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auto void_type = type_it;
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type_it += 1;
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auto noreturn_type = type_it;
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type_it += 1;
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assert((u64)(type_it - base_type_allocation.pointer) == base_allocation_type_count);
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previous->next = void_type;
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*void_type = {
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.id = TypeId::void_type,
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.name = string_literal("void"),
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.next = noreturn_type,
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};
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*noreturn_type = {
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.id = TypeId::noreturn,
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.name = string_literal("noreturn"),
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};
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auto module = Module{
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.arena = arena,
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.content = options.content,
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.first_type = base_type_allocation.pointer,
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.last_type = noreturn_type,
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.scope = {
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.kind = ScopeKind::global,
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},
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.name = options.name,
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.path = options.path,
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.executable = options.executable,
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.objects = options.objects,
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.target = options.target,
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.build_mode = options.build_mode,
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.has_debug_info = options.has_debug_info,
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.silent = options.silent,
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};
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module.void_value = new_value(&module);
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*module.void_value = {
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.type = void_type,
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.id = ValueId::infer_or_ignore,
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};
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parse(&module);
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emit(&module);
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}
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fn void compile_file(Arena* arena, Compile options)
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{
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auto relative_file_path = options.relative_file_path;
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if (relative_file_path.length < 5)
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{
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fail();
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}
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auto extension_start = string_last_character(relative_file_path, '.');
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if (extension_start == string_no_match)
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{
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fail();
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}
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if (!relative_file_path(extension_start).equal(string_literal(".bbb")))
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{
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fail();
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}
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auto separator_index = string_last_character(relative_file_path, '/');
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separator_index = separator_index == string_no_match ? 0 : separator_index;
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auto base_start = separator_index + (separator_index != 0 || relative_file_path[separator_index] == '/');
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auto base_name = relative_file_path(base_start, extension_start);
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auto is_compiler = relative_file_path.equal(string_literal("src/compiler.bbb"));
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String output_path_dir_parts[] = {
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string_literal(base_cache_dir),
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is_compiler ? string_literal("/compiler") : string_literal("/"),
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build_mode_to_string(options.build_mode),
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string_literal("_"),
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options.has_debug_info ? string_literal("di") : string_literal("nodi"),
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};
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auto output_path_dir = arena_join_string(arena, array_to_slice(output_path_dir_parts));
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make_directory(base_cache_dir);
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if (is_compiler)
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{
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make_directory(base_cache_dir "/compiler");
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}
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make_directory(cstr(output_path_dir));
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String output_path_base_parts[] = {
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output_path_dir,
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string_literal("/"),
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base_name,
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};
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auto output_path_base = arena_join_string(arena, array_to_slice(output_path_base_parts));
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String output_object_path_parts[] = {
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output_path_base,
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string_literal(".o"),
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};
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auto output_object_path = arena_join_string(arena, array_to_slice(output_object_path_parts));
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auto output_executable_path = output_path_base;
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auto file_content = file_read(arena, relative_file_path);
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auto file_path = path_absolute(arena, relative_file_path);
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auto c_abi_object_path = string_literal("build/c_abi.o");
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String objects[] = {
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c_abi_object_path,
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output_object_path,
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};
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Slice<String> object_slice = array_to_slice(objects);
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object_slice = object_slice(!base_name.equal(string_literal("c_abi")));
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compile(arena, {
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.content = file_content,
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.path = file_path,
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.executable = output_executable_path,
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.name = base_name,
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.objects = object_slice,
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.target = {
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.cpu = CPUArchitecture::x86_64,
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.os = OperatingSystem::linux_,
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},
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.build_mode = options.build_mode,
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.has_debug_info = options.has_debug_info,
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.silent = options.silent,
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});
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}
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global_variable String names[] = {
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string_literal("minimal"),
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string_literal("comments"),
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string_literal("constant_add"),
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string_literal("constant_and"),
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string_literal("constant_div"),
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string_literal("constant_mul"),
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string_literal("constant_rem"),
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string_literal("constant_or"),
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string_literal("constant_sub"),
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string_literal("constant_xor"),
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string_literal("constant_shift_left"),
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string_literal("constant_shift_right"),
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string_literal("minimal_stack"),
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string_literal("minimal_stack_arithmetic"),
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string_literal("minimal_stack_arithmetic2"),
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string_literal("minimal_stack_arithmetic3"),
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string_literal("stack_negation"),
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string_literal("stack_add"),
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string_literal("stack_sub"),
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string_literal("extend"),
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string_literal("integer_max"),
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string_literal("integer_hex"),
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string_literal("basic_pointer"),
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string_literal("basic_call"),
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string_literal("basic_branch"),
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string_literal("basic_array"),
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string_literal("basic_enum"),
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string_literal("basic_slice"),
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string_literal("basic_string"),
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string_literal("basic_varargs"),
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string_literal("basic_while"),
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string_literal("pointer"),
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string_literal("pointer_cast"),
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string_literal("u1_return"),
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string_literal("local_type_inference"),
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string_literal("global"),
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string_literal("function_pointer"),
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string_literal("extern"),
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string_literal("byte_size"),
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string_literal("argv"),
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string_literal("assignment_operators"),
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string_literal("not_pointer"),
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string_literal("bits"),
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string_literal("bits_no_backing_type"),
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string_literal("bits_return_u1"),
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string_literal("bits_zero"),
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string_literal("comparison"),
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string_literal("global_struct"),
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string_literal("if_no_else"),
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string_literal("if_no_else_void"),
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string_literal("indirect"),
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string_literal("indirect_struct"),
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string_literal("indirect_varargs"),
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string_literal("ret_c_bool"),
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string_literal("return_type_builtin"),
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string_literal("return_u64_u64"),
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string_literal("select"),
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string_literal("slice"),
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string_literal("small_struct_ints"),
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string_literal("struct_assignment"),
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string_literal("struct"),
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string_literal("struct_u64_u64"),
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string_literal("struct_varargs"),
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string_literal("struct_zero"),
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string_literal("unreachable"),
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string_literal("varargs"),
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string_literal("c_abi0"),
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string_literal("c_abi1"),
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string_literal("c_med_struct_ints"),
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string_literal("c_ret_struct_array"),
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string_literal("c_split_struct_ints"),
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string_literal("c_string_to_slice"),
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string_literal("c_struct_with_array"),
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string_literal("c_function_pointer"),
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string_literal("basic_bool_call"),
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string_literal("c_abi"),
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string_literal("string_to_enum"),
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string_literal("abi_enum_bool"),
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string_literal("empty_if"),
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string_literal("else_if"),
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string_literal("else_if_complicated"),
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string_literal("basic_shortcircuiting_if"),
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string_literal("shortcircuiting_if"),
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string_literal("field_access_left_assign"),
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string_literal("for_each"),
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string_literal("pointer_decay"),
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string_literal("enum_name"),
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string_literal("slice_of_slices"),
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string_literal("type_alias"),
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string_literal("integer_formats"),
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string_literal("return_small_struct"),
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string_literal("for_each_int"),
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string_literal("bool_array"),
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string_literal("basic_union"),
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string_literal("break_continue"),
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string_literal("constant_global_reference"),
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string_literal("self_referential_struct"),
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string_literal("forward_declared_type"),
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string_literal("basic_macro"),
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string_literal("generic_macro"),
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string_literal("generic_pointer_macro"),
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string_literal("noreturn_macro"),
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string_literal("generic_pointer_array"),
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};
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void entry_point(Slice<const char*> arguments, Slice<const char*> environment)
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{
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unused(environment);
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Arena* arena = arena_initialize_default(8 * mb);
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if (arguments.length < 2)
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{
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fail_with_message(string_literal("error: Not enough arguments\n"));
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}
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String command_string = c_string_to_slice(arguments[1]);
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String command_strings[] = {
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string_literal("compile"),
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string_literal("test"),
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};
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static_assert(array_length(command_strings) == (u64)Command::count);
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backing_type(Command) i;
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for (i = 0; i < (backing_type(Command))Command::count; i += 1)
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{
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String candidate = command_strings[i];
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if (candidate.equal(command_string))
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{
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break;
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}
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}
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auto command = (Command)i;
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switch (command)
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{
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case Command::compile:
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{
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if (arguments.length < 3)
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{
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fail_with_message(string_literal("Not enough arguments for command 'compile'\n"));
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}
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auto build_mode = BuildMode::debug_none;
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auto has_debug_info = true;
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if (arguments.length >= 4)
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{
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auto build_mode_string = c_string_to_slice(arguments[3]);
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String build_mode_strings[] = {
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string_literal("debug_none"),
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string_literal("debug"),
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string_literal("soft_optimize"),
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string_literal("optimize_for_speed"),
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string_literal("optimize_for_size"),
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string_literal("aggressively_optimize_for_speed"),
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string_literal("aggressively_optimize_for_size"),
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};
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backing_type(BuildMode) i;
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for (i = 0; i < (backing_type(BuildMode))BuildMode::count; i += 1)
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{
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String candidate = build_mode_strings[i];
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if (build_mode_string.equal(candidate))
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{
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break;
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}
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}
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build_mode = (BuildMode)i;
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if (build_mode == BuildMode::count)
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{
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fail_with_message(string_literal("Invalid build mode\n"));
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}
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}
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if (arguments.length >= 5)
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{
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auto has_debug_info_string = c_string_to_slice(arguments[3]);
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if (has_debug_info_string.equal(string_literal("true")))
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{
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has_debug_info = true;
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}
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else if (has_debug_info_string.equal(string_literal("false")))
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{
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has_debug_info = false;
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}
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else
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{
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fail_with_message(string_literal("Wrong value for has_debug_info\n"));
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}
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}
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auto relative_file_path = c_string_to_slice(arguments[2]);
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compile_file(arena, {
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.relative_file_path = relative_file_path,
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.build_mode = build_mode,
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.has_debug_info = has_debug_info,
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.silent = false,
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});
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} break;
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case Command::test:
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{
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// TODO: provide more arguments
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if (arguments.length != 2)
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{
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fail_with_message(string_literal("error: 'test' command takes no arguments"));
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}
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// TODO: introduce build mode, debug info switch, etc
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for (auto name: names)
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{
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auto position = arena->position;
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String relative_file_path_parts[] = { string_literal("tests/"), name, string_literal(".bbb") };
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auto relative_file_path = arena_join_string(arena, array_to_slice(relative_file_path_parts));
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auto build_mode = BuildMode::debug_none;
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bool has_debug_info = true;
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compile_file(arena, {
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.relative_file_path = relative_file_path,
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.build_mode = build_mode,
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.has_debug_info = has_debug_info,
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.silent = true,
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});
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// TODO: introduce test
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arena_restore(arena, position);
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}
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} break;
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case Command::count:
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{
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fail_with_message(string_literal("error: Invalid command\n"));
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} break;
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}
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}
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