1040 lines
30 KiB
C++
1040 lines
30 KiB
C++
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#define gen(...) pctx->gen.addf(__VA_ARGS__)
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#define genln(...) \
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do { \
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gen("\n"); \
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gen_indent(); \
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gen(__VA_ARGS__); \
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} while (0)
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global S32 global_indent;
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global S32 is_inside_struct;
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CORE_Static void gen_ast(Ast *ast);
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CORE_Static bool gen_expr(Ast_Expr *ast);
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CORE_Static void
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gen_indent() {
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for (S32 i = 0; i < global_indent; i++) gen(" ");
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}
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global Intern_String last_filename;
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global int last_line;
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CORE_Static void
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gen_line(Ast *node) {
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if (pctx->emit_line_directives) {
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last_line = node->pos->line + 1;
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genln("#line %d", last_line);
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if (node->pos->file != last_filename) {
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last_filename = node->pos->file;
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gen(" \"%Q\"", last_filename);
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}
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}
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}
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CORE_Static void
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gen_last_line() {
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if (pctx->emit_line_directives) {
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genln("#line %d", last_line);
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}
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}
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CORE_Static String
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string_scope_name(Allocator *a, Ast_Scope *scope) {
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String string = {};
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if (scope->parent_scope) string = string_scope_name(a, scope->parent_scope);
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assert_message(scope->scope_id != 0, "Scope id is equal to 0 which is invalid, scope didn't initialize id");
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string = string_fmt(a, "%QS%u_", string, scope->scope_id);
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return string;
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}
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CORE_Static void
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gen_scope_name(Ast_Scope *scope) {
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Arena *scratch = pctx->scratch;
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Scratch_Scope _scope(scratch);
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String string = string_scope_name(scratch, scope);
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gen("%.*s", (int)string.len, string.str);
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}
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CORE_Static Intern_String
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get_unique_name(Ast *ast) {
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Scratch_Scope _scope(pctx->scratch);
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String result = string_scope_name(pctx->scratch, ast->parent_scope);
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assert(result.len);
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result = string_fmt(pctx->scratch, "%Q%d", result, ast->pos->line);
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Intern_String result2 = pctx->intern(result);
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return result2;
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}
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global String prefixed_string_type;
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CORE_Static const char *
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get_ctype_name_for_type(Ast_Type *type) {
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switch (type->kind) {
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case TYPE_VOID: return "void";
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case TYPE_BOOL: return "bool";
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case TYPE_STRING: return (char *)prefixed_string_type.str;
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case TYPE_CHAR: return "char";
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case TYPE_F32: return "float";
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case TYPE_F64: return "double";
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case TYPE_INT: return "int";
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case TYPE_S8: return "int8_t";
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case TYPE_S16: return "int16_t";
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case TYPE_S32: return "int32_t";
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case TYPE_S64: return "int64_t";
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case TYPE_U8: return "uint8_t";
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case TYPE_U16: return "uint16_t";
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case TYPE_U32: return "uint32_t";
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case TYPE_U64: return "uint64_t";
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case TYPE_TUPLE: return "Tuple";
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case TYPE_TYPE: return "int64_t";
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case TYPE_INCOMPLETE: {
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// This happens in case where we have a procedure in an away module.
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// And that procedure takes a pointer from a struct that is never
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// use elsewhere. In that case this seems fine.
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return "void";
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}
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invalid_default_case;
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}
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return "<unknown_type>";
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}
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CORE_Static String
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string_simple_decl_prefix(Allocator *a, Ast_Type *ast) {
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switch (ast->kind) {
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case TYPE_POINTER: {
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String string = string_simple_decl_prefix(a, ast->base);
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string = string_fmt(a, "%Q*", string);
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return string;
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} break;
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case TYPE_LAMBDA: return {}; break;
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case TYPE_ENUM:
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case TYPE_ARRAY: {
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return string_simple_decl_prefix(a, ast->base);
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} break;
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case TYPE_SLICE: {
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String string = string_simple_decl_prefix(a, ast->base);
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string = string_fmt(a, "Slice%llu ", ast->type_id);
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return string;
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} break;
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case TYPE_TUPLE: {
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String string = string_fmt(a, "Tuple%llu ", ast->type_id);
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return string;
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} break;
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case TYPE_STRUCT: {
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auto constant = (Ast_Decl *)ast->ast;
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auto name = constant->unique_name;
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String string = string_fmt(a, "%Q ", name);
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String sc = {};
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return string_fmt(a, "%Q%Q", sc, string);
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} break;
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default: {
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String string = string_fmt(a, "%s ", get_ctype_name_for_type(ast));
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return string;
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}
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}
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return {};
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}
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CORE_Static String
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string_simple_decl_postfix(Allocator *a, Ast_Type *ast) {
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switch (ast->kind) {
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case TYPE_POINTER:
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return string_simple_decl_postfix(a, ast->base);
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break;
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case TYPE_ARRAY: {
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String result = string_simple_decl_postfix(a, ast->arr.base);
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String string = string_fmt(a, "[%d]%Q", ast->arr.size, result);
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return string;
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} break;
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case TYPE_LAMBDA: break;
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case TYPE_SLICE:
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case TYPE_ENUM:
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case TYPE_STRUCT: break;
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default:
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break;
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// default: return string_from_cstring((char *)name(ast));
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}
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return {};
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}
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CORE_Static String
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string_simple_decl(Allocator *a, Ast_Type *ast, Intern_String name = {}) {
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if (ast->kind == TYPE_LAMBDA) {
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String prefix = string_simple_decl_prefix(a, ast->func.ret);
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String string = string_fmt(a, "%Q(*%Q)(", prefix, name);
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For(ast->func.args) {
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String prefix_arg = string_simple_decl_prefix(a, it);
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string = string_fmt(a, "%Q%Q", string, prefix_arg);
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if (&it != ast->func.args.end() - 1)
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string = string_fmt(a, "%Q, ", string);
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}
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string = string_fmt(a, "%Q)", string);
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return string;
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}
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else {
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String string = string_simple_decl_prefix(a, ast);
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if (name.len) {
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string = string_fmt(a, "%Q%Q", string, name);
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}
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String postfix = string_simple_decl_postfix(a, ast);
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string = string_fmt(a, "%Q%Q", string, postfix);
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return string;
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}
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}
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CORE_Static void
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gen_simple_decl(Ast_Type *ast, Intern_String name = {}) {
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Arena *scratch = pctx->scratch;
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Scratch_Scope _scope(scratch);
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String string = string_simple_decl(scratch, ast, name);
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gen("%.*s", (int)string.len, string.str);
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}
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CORE_Static String
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get_type_postfix(Ast_Type *type) {
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switch (type->kind) {
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case TYPE_F32: return "f"_s; break;
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case TYPE_U64: return "ULL"_s; break;
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case TYPE_S64: return "LL"_s; break;
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case TYPE_F64:
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case TYPE_S8:
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case TYPE_S16:
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case TYPE_S32:
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case TYPE_U8:
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case TYPE_U16:
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case TYPE_INT:
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case TYPE_U32:
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case TYPE_CHAR:
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return ""_s;
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break;
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invalid_default_case;
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}
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assert(!"Unhandled case or error");
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return ""_s;
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}
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CORE_Static B32
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gen_value(Token *pos, Value a) {
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if (is_untyped(a.type)) compiler_error(pos, "Internal compiler error: Untyped got propagated to the codegen stage");
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B32 result = true;
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Ast_Type *type = a.type;
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if (is_enum(a.type)) {
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type = a.type->base;
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}
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switch (type->kind) {
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CASE_INT : {
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Arena *scratch = pctx->scratch;
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Scratch_Scope _scope(scratch);
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String postfix = get_type_postfix(type);
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const char *string = bigint_to_error_string(scratch, &a.big_int_val, 10);
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gen("%s%Q", string, postfix);
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} break;
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case TYPE_POINTER: {
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if (a.type == pctx->type_pointer_to_char) {
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gen("\"%Q\"", a.intern_val);
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}
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else {
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U64 pointer_value = bigint_as_unsigned(&a.big_int_val);
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gen("0x%llx", pointer_value);
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}
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} break;
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CASE_BOOL : {
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a.bool_val ? gen("true") : gen("false");
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} break;
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CASE_FLOAT : {
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String postfix = get_type_postfix(type);
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gen("%f%Q", a.f64_val, postfix);
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} break;
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case TYPE_TYPE: {
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gen("%d", a.type_val->type_id);
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} break;
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default: {
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if (is_string(type)) {
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int length = 0;
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gen("(%QString){(uint8_t *)\"", pctx->symbol_prefix);
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for (int i = 0; i < a.intern_val.len; i++) {
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if (a.intern_val.str[i] == '\n') {
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length += 2;
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gen("\\n");
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}
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else if (a.intern_val.str[i] == '\r') {
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length += 2;
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gen("\\r");
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}
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else {
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length += 1;
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gen("%c", a.intern_val.str[i]);
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}
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}
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gen("\", %d}", length);
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}
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else result = false;
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}
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}
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return result;
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}
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CORE_Static void
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gen_stmt_scope(Ast_Scope *scope, B32 switch_case_gen_break = 0) {
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gen("{");
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global_indent++;
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For(scope->stmts) {
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gen_line(it);
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genln("");
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gen_ast(it);
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}
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if (switch_case_gen_break == 1) genln("break;");
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global_indent--;
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gen_last_line();
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genln("}");
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}
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enum {
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ALWAYS_EMIT_VALUE = 0,
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DONT_EMIT_VALUE = 1,
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};
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CORE_Static void
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gen_pointer(Ast_Expr *expr) {
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gen("&");
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if (is_flag_set(expr->flags, AST_IS_LVALUE)) {
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gen_expr(expr);
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}
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else {
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gen("(");
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gen_simple_decl(expr->resolved_type);
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gen(")");
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gen("{");
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gen_expr(expr);
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gen("}");
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}
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}
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CORE_Static void
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gen_try_any_or_slice(Ast_Expr *expr, Ast_Type *decl_type) {
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// We want normal values to get boxed as Any pointers
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// but other then that we shouldn't box other Any values
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if (expr->kind != AST_COMPOUND && is_any(decl_type) && !is_any(expr->resolved_type)) {
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gen("(Any){");
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gen_pointer(expr);
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gen(", %d}", expr->resolved_type->type_id);
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}
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else if (expr->kind == AST_IDENT && is_slice(decl_type)) {
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Ast_Atom *atom = (Ast_Atom *)expr;
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gen("(");
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gen_simple_decl(decl_type);
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gen(")");
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gen("{%d, ", atom->resolved_type->arr.size);
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gen_expr(expr);
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gen("}");
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}
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else gen_expr(expr);
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}
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CORE_Static void
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gen_var(Ast_Decl *decl, B32 emit_value, B32 scope_names) {
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if (is_flag_set(decl->flags, AST_FOREIGN)) gen("extern ");
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gen_simple_decl(decl->type, decl->name);
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if (is_flag_set(decl->flags, AST_FOREIGN)) return;
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if (emit_value == DONT_EMIT_VALUE) {
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return;
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}
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if (decl->expr) {
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gen(" = ");
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gen_try_any_or_slice(decl->expr, decl->type);
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}
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else { // Default zero
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if (is_numeric(decl->type)) {
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gen(" = 0");
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}
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else {
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gen(" = {}");
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}
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}
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}
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CORE_Static void
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gen_lambda(Intern_String name, Ast_Lambda *lambda, B32 generate_block = true) {
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gen_simple_decl(lambda->resolved_type->func.ret, name);
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gen("(");
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For(lambda->args) {
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gen_var(it, DONT_EMIT_VALUE, true);
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if (&it != (lambda->args.end() - 1))
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gen(", ");
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}
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gen(")");
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if (generate_block && lambda->scope) {
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gen_stmt_scope(lambda->scope);
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}
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else gen(";");
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}
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CORE_Static bool
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gen_expr(Ast_Expr *ast) {
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switch (ast->kind) {
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CASE(IDENT, Atom) {
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if (node->resolved_decl->kind == AST_NAMESPACE)
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return false;
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if (node->resolved_decl->kind == AST_LAMBDA) {
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gen("%Q", node->resolved_decl->unique_name);
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}
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else {
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gen("%Q", node->intern_val);
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}
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BREAK();
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}
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CASE(VALUE, Atom) {
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B32 written = gen_value(node->pos, node->value);
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if (!written) {
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gen("%Q", node->value.intern_val);
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}
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BREAK();
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}
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CASE(ARRAY, Array) {
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gen("%d", node->resolved_type->type_id);
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BREAK();
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}
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CASE(INDEX, Index) {
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gen("(");
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gen_expr(node->expr);
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if (node->index_original_type == pctx->type_string || node->index_original_type == pctx->untyped_string) {
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gen(".data");
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}
|
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else if (is_slice(node->index_original_type)) {
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gen(".data");
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}
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gen("[");
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gen_expr(node->index);
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gen("]");
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gen(")");
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BREAK();
|
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}
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|
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CASE(LAMBDA_EXPR, Lambda) {
|
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gen_lambda({}, node);
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BREAK();
|
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}
|
|
|
|
CASE(BINARY, Binary) {
|
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if (node->op == TK_Dot) {
|
|
if (gen_expr(node->left)) {
|
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if (node->dot_access_step_resolution && node->dot_access_step_resolution->kind == TYPE_POINTER) gen("->");
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else gen(".");
|
|
}
|
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gen_expr(node->right);
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return true;
|
|
}
|
|
|
|
else if (node->op == TK_Arrow) {
|
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gen("(");
|
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gen("(");
|
|
gen_simple_decl(node->resolved_type);
|
|
gen(")");
|
|
gen_expr(node->left);
|
|
gen(")");
|
|
return true;
|
|
}
|
|
|
|
else if (node->resolved_operator_overload) {
|
|
gen("%Q(", node->resolved_operator_overload->unique_name);
|
|
gen_expr(node->left);
|
|
gen(", ");
|
|
gen_expr(node->right);
|
|
gen(")");
|
|
}
|
|
|
|
else {
|
|
if (!token_is_assign(node->op)) gen("(");
|
|
gen_expr(node->left);
|
|
gen("%s", name(node->op));
|
|
gen_expr(node->right);
|
|
if (!token_is_assign(node->op)) gen(")");
|
|
}
|
|
|
|
BREAK();
|
|
}
|
|
|
|
CASE(UNARY, Unary) {
|
|
if (node->resolved_operator_overload) {
|
|
gen("%Q(", node->resolved_operator_overload->unique_name);
|
|
gen_expr(node->expr);
|
|
gen(")");
|
|
}
|
|
|
|
else {
|
|
gen("(");
|
|
if (node->op != TK_PostIncrement && node->op != TK_PostDecrement) gen("%s", name(node->op));
|
|
gen_expr(node->expr);
|
|
if (node->op == TK_PostIncrement || node->op == TK_PostDecrement) gen("%s", name(node->op));
|
|
gen(")");
|
|
}
|
|
BREAK();
|
|
}
|
|
|
|
CASE(VAR, Decl) {
|
|
gen_ast(node);
|
|
BREAK();
|
|
}
|
|
|
|
CASE(LENGTH_OF, Call) {
|
|
Ast_Expr *expr = unpack_ast_call_expr_for_builtin(node);
|
|
gen_expr(expr);
|
|
if (is_pointer(expr->resolved_type))
|
|
gen("->len");
|
|
else gen(".len");
|
|
BREAK();
|
|
}
|
|
|
|
CASE(CALL, Call) {
|
|
gen("%Q(", node->resolved_decl->unique_name);
|
|
For(node->exprs) {
|
|
gen_try_any_or_slice(it->item, it->resolved_type);
|
|
if (!node->exprs.is_last(&it)) gen(", ");
|
|
}
|
|
gen(")");
|
|
BREAK();
|
|
}
|
|
|
|
CASE(COMPOUND, Call) {
|
|
gen("(");
|
|
gen_simple_decl(node->resolved_type);
|
|
gen(")");
|
|
gen("{");
|
|
|
|
// We need to double wrap it because Any is a pointer
|
|
// We need to pass it a compound array
|
|
if (is_slice(node->resolved_type)) {
|
|
gen(".len = %d, ", node->exprs.len);
|
|
gen(".data = (");
|
|
gen_simple_decl(node->resolved_type->base);
|
|
gen("[]");
|
|
gen(")");
|
|
gen("{");
|
|
}
|
|
|
|
For(node->exprs) {
|
|
if (is_struct(node->resolved_type))
|
|
gen(".%Q = ", it->resolved_name);
|
|
else if (is_array(node->resolved_type))
|
|
gen("[%d] = ", (int)it->resolved_index);
|
|
gen_try_any_or_slice(it->item, it->resolved_type);
|
|
|
|
if (!node->exprs.is_last(&it)) gen(", ");
|
|
}
|
|
|
|
if (is_slice(node->resolved_type)) gen("}");
|
|
gen("}");
|
|
BREAK();
|
|
}
|
|
|
|
invalid_default_case;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
- [ ] Assigning arrays to arrays doesn't work in C. Being able to do that seems like a good idea though
|
|
|
|
*/
|
|
|
|
CORE_Static void
|
|
gen_ast(Ast *ast) {
|
|
switch (ast->kind) {
|
|
|
|
CASE(RUNTIME_ASSERT, Builtin) {
|
|
if (node->assert_message.len == 0) gen("%QAssert", pctx->symbol_prefix);
|
|
else gen("%QAssertMessage", pctx->symbol_prefix);
|
|
gen("(");
|
|
gen_expr(node->expr);
|
|
if (node->assert_message.len) {
|
|
gen(", \"%Q\"", node->assert_message);
|
|
}
|
|
gen(");");
|
|
BREAK();
|
|
}
|
|
|
|
CASE(RETURN, Return) {
|
|
if (is_tuple(node->resolved_type)) {
|
|
Arena *scratch = pctx->scratch;
|
|
Scratch_Scope _scope(scratch);
|
|
|
|
Intern_String tuple_name = get_unique_name(node);
|
|
gen_simple_decl(node->resolved_type, tuple_name);
|
|
gen(";");
|
|
|
|
int i = 0;
|
|
For(node->expr) {
|
|
|
|
// We cant assign to array in C so we need a special case
|
|
if (is_array(it->resolved_type)) {
|
|
genln("%QMemoryCopy(&%Q.m%d, ", pctx->symbol_prefix, tuple_name, i);
|
|
gen_expr(it);
|
|
gen(", sizeof(%Q.m%d));", tuple_name, i);
|
|
}
|
|
|
|
else {
|
|
genln("%Q.m%d = ", tuple_name, i);
|
|
gen_expr(it);
|
|
gen(";");
|
|
}
|
|
|
|
i += 1;
|
|
}
|
|
gen_line(node);
|
|
genln("return %Q;", tuple_name);
|
|
#if 0
|
|
gen("return (");
|
|
gen_simple_decl(node->resolved_type);
|
|
gen("){");
|
|
int i = 0;
|
|
global_indent++;
|
|
For(node->expr){
|
|
gen_line(it);
|
|
genln("");
|
|
gen_expr(it);
|
|
if (!node->expr.is_last(&it)) {
|
|
gen(",");
|
|
}
|
|
}
|
|
global_indent--;
|
|
genln("");
|
|
gen("};");
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
assert(node->expr.len <= 1);
|
|
gen("return ");
|
|
For(node->expr) gen_expr(it);
|
|
gen(";");
|
|
BREAK();
|
|
}
|
|
|
|
CASE(VAR, Decl) {
|
|
gen_var(node, is_inside_struct ? DONT_EMIT_VALUE : ALWAYS_EMIT_VALUE, true);
|
|
if (!is_flag_set(ast->flags, AST_EXPR)) gen(";");
|
|
BREAK();
|
|
}
|
|
|
|
CASE(IF, If) {
|
|
For(node->ifs) {
|
|
gen_line(it);
|
|
genln("");
|
|
if (it->init) {
|
|
gen_expr(it->init);
|
|
gen(";");
|
|
genln("");
|
|
}
|
|
if (node->ifs.is_first(&it)) {
|
|
gen("if(");
|
|
gen_expr(it->expr);
|
|
gen(")");
|
|
gen_stmt_scope(it->scope);
|
|
}
|
|
else {
|
|
gen("else");
|
|
if (it->expr) {
|
|
gen(" if(");
|
|
gen_expr(it->expr);
|
|
gen(")");
|
|
}
|
|
gen_stmt_scope(it->scope);
|
|
}
|
|
}
|
|
BREAK();
|
|
}
|
|
|
|
CASE(BREAK, Break) {
|
|
unused(node);
|
|
gen("break;");
|
|
BREAK();
|
|
}
|
|
|
|
CASE(PASS, Pass) {
|
|
unused(node);
|
|
gen("//pass");
|
|
BREAK();
|
|
}
|
|
|
|
CASE(BINARY, Binary) {
|
|
gen_expr(node);
|
|
gen(";");
|
|
BREAK();
|
|
}
|
|
|
|
CASE(FOR, For) {
|
|
|
|
// Array iter
|
|
if (node->is_array_traversal) {
|
|
gen("for(int64_t _i%d = 0; _i%d < ", node->pos->line, node->pos->line);
|
|
if (is_array(node->cond->resolved_type)) {
|
|
gen("%QBufferSize(", pctx->symbol_prefix);
|
|
gen_expr(node->cond);
|
|
gen(")");
|
|
}
|
|
else {
|
|
assert(is_slice(node->cond->resolved_type));
|
|
gen_expr(node->cond);
|
|
gen(".len");
|
|
}
|
|
|
|
gen("; _i%d+=1)", node->pos->line);
|
|
gen("{");
|
|
global_indent++;
|
|
genln("");
|
|
gen_simple_decl(node->array_traversal_var->type, node->array_traversal_var->name);
|
|
gen(" = ");
|
|
gen_expr(node->cond);
|
|
if (node->is_also_slice_traversal) gen(".data");
|
|
gen(" + _i%d;", node->pos->line);
|
|
For(node->scope->stmts) {
|
|
gen_line(it);
|
|
genln("");
|
|
gen_ast(it);
|
|
}
|
|
global_indent--;
|
|
gen_last_line();
|
|
genln("}");
|
|
}
|
|
|
|
// Normal for loop
|
|
else {
|
|
gen("for(");
|
|
if (node->init) gen_expr(node->init);
|
|
gen(";");
|
|
if (node->cond) gen_expr(node->cond);
|
|
gen(";");
|
|
if (node->iter) gen_expr(node->iter);
|
|
gen(")");
|
|
gen_stmt_scope(node->scope);
|
|
}
|
|
|
|
BREAK();
|
|
}
|
|
|
|
CASE(LAMBDA, Decl) {
|
|
gen_line(node);
|
|
genln("");
|
|
|
|
if (is_flag_set(node->expr->flags, AST_FOREIGN)) {
|
|
gen("/*foreign*/");
|
|
}
|
|
gen_lambda(node->unique_name, node->lambda);
|
|
BREAK();
|
|
}
|
|
|
|
CASE(STRUCT, Decl) {
|
|
gen("struct ");
|
|
gen("%Q{", node->unique_name);
|
|
global_indent++;
|
|
is_inside_struct++;
|
|
For(node->scope->decls) {
|
|
genln("");
|
|
gen_ast(it);
|
|
}
|
|
|
|
is_inside_struct--;
|
|
global_indent--;
|
|
genln("};");
|
|
BREAK();
|
|
}
|
|
|
|
CASE(ENUM, Decl) {
|
|
gen("/*enum %Q{", node->name);
|
|
// @todo add typespec
|
|
global_indent++;
|
|
For(node->scope->decls) {
|
|
genln("%Q", it->name);
|
|
gen(" = ");
|
|
gen_value(it->pos, it->value);
|
|
gen(",");
|
|
}
|
|
global_indent--;
|
|
genln("};*/");
|
|
BREAK();
|
|
}
|
|
|
|
case AST_TYPE:
|
|
CASE(CONST, Decl) {
|
|
unused(node);
|
|
BREAK();
|
|
}
|
|
|
|
CASE(SWITCH, Switch) {
|
|
gen("switch(");
|
|
gen_expr(node->value);
|
|
gen("){");
|
|
global_indent++;
|
|
|
|
For(node->cases) {
|
|
For_Named(it->labels, label) {
|
|
gen_line(it);
|
|
genln("");
|
|
gen("case ");
|
|
gen_expr(label);
|
|
gen(":");
|
|
}
|
|
|
|
gen_stmt_scope(it->scope, it->fallthrough ? false : true);
|
|
}
|
|
|
|
if (node->default_scope) {
|
|
genln("default: ");
|
|
gen_stmt_scope(node->default_scope);
|
|
}
|
|
|
|
global_indent--;
|
|
gen_last_line();
|
|
genln("}");
|
|
|
|
BREAK();
|
|
}
|
|
|
|
CASE(VAR_UNPACK, Var_Unpack) {
|
|
For(node->vars)
|
|
gen_ast(it);
|
|
|
|
Arena *scratch = pctx->scratch;
|
|
Scratch_Scope _scope(scratch);
|
|
|
|
Intern_String var_name = get_unique_name(node);
|
|
gen_simple_decl(node->resolved_type, var_name);
|
|
gen(" = ");
|
|
gen_expr(node->expr);
|
|
gen(";");
|
|
|
|
int i = 0;
|
|
For(node->vars) {
|
|
gen("%QMemoryCopy((void *)&%Q, (void *)&%Q.m%d, sizeof(%Q));", pctx->symbol_prefix, it->name, var_name, i++, it->name);
|
|
}
|
|
BREAK();
|
|
}
|
|
|
|
case AST_CONSTANT_ASSERT:
|
|
case AST_NAMESPACE: break;
|
|
|
|
default: {
|
|
assert(is_flag_set(ast->flags, AST_EXPR));
|
|
gen_expr((Ast_Expr *)ast);
|
|
gen(";");
|
|
}
|
|
}
|
|
}
|
|
|
|
CORE_Static String
|
|
compile_to_c_code() {
|
|
pctx->time.code_generation = os_time();
|
|
|
|
prefixed_string_type = string_fmt(pctx->perm, "%QString", pctx->symbol_prefix);
|
|
if (pctx->single_header_library_mode) {
|
|
gen(R"(
|
|
/*
|
|
Do this:
|
|
#define %Q_IMPLEMENTATION
|
|
before you include this file in *one* C or C++ file to create the implementation.
|
|
|
|
// i.e. it should look like this:
|
|
#include ...
|
|
#include ...
|
|
#include ...
|
|
#define %Q_IMPLEMENTATION
|
|
#include "%Q.h"
|
|
|
|
You can #define %QAssert(x) to avoid using default assert
|
|
You can #define %QAssertMessage(x) to get more comprehensive error info
|
|
You can #define %QMemoryCopy(x) to avoid using default memory copy
|
|
*/
|
|
)",
|
|
pctx->single_header_library_name, pctx->single_header_library_name, pctx->single_header_library_name,
|
|
pctx->symbol_prefix, pctx->symbol_prefix, pctx->symbol_prefix);
|
|
genln("#ifndef %Q_LIBRARY_HEADER ", pctx->single_header_library_name);
|
|
genln("#define %Q_LIBRARY_HEADER ", pctx->single_header_library_name);
|
|
}
|
|
|
|
gen(R"(
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
|
|
#ifndef Assert
|
|
#define Assert(x) do{if(!(x))(*(volatile int *)0 = 0);}while(0)
|
|
#endif
|
|
|
|
#ifndef AssertMessage
|
|
#define AssertMessage(x,...) Assert(x)
|
|
#endif
|
|
|
|
#ifndef MemoryCopy
|
|
#define MemoryCopy MemoryCopy_
|
|
|
|
static void
|
|
MemoryCopy_(void *dst, void *src, size_t size){
|
|
uint8_t *d = (uint8_t*)dst;
|
|
uint8_t *s = (uint8_t*)src;
|
|
for(size_t i = 0; i < size; i++){
|
|
d[i] = s[i];
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#define BufferSize(x) (sizeof(x)/sizeof((x)[0]))
|
|
|
|
)");
|
|
|
|
// Generate struct forward decls
|
|
For(pctx->ordered_decls) {
|
|
if (it->kind == AST_STRUCT) {
|
|
genln("typedef struct %Q %Q;", it->unique_name, it->unique_name);
|
|
}
|
|
}
|
|
|
|
// Generate slice and tuple types
|
|
For_Named(pctx->all_types, type) {
|
|
Arena *scratch = pctx->scratch;
|
|
Scratch_Scope _scope(scratch);
|
|
|
|
if (type->kind == TYPE_SLICE) {
|
|
genln("typedef struct Slice%llu{", type->type_id);
|
|
global_indent++;
|
|
genln("int64_t len;");
|
|
genln("");
|
|
gen_simple_decl(type_pointer(type->base), pctx->intern("data"_s));
|
|
gen(";");
|
|
global_indent--;
|
|
genln("} Slice%llu;", type->type_id);
|
|
}
|
|
|
|
else if (type->kind == TYPE_TUPLE) {
|
|
genln("typedef struct Tuple%llu{", type->type_id);
|
|
global_indent++;
|
|
For(type->agg.members) {
|
|
genln("");
|
|
// @todo remove intern from gen
|
|
Intern_String name = pctx->intern(string_fmt(scratch, "m%llu", type->agg.members.get_index(&it)));
|
|
gen_simple_decl(it.type, name);
|
|
gen(";");
|
|
}
|
|
global_indent--;
|
|
genln("} Tuple%llu;", type->type_id);
|
|
}
|
|
}
|
|
|
|
Intern_String intern_main = pctx->intern("main"_s);
|
|
Intern_String intern_win_main = pctx->intern("WinMain"_s);
|
|
|
|
Ast_Decl *main = 0;
|
|
Ast_Decl *win_main = 0;
|
|
|
|
// Generate lambda forward decls
|
|
For(pctx->ordered_decls) {
|
|
if (it->kind == AST_LAMBDA) {
|
|
if (it->name == intern_main) {
|
|
main = it;
|
|
it->unique_name = it->name;
|
|
}
|
|
|
|
if (it->name == intern_win_main) {
|
|
win_main = it;
|
|
it->unique_name = it->name;
|
|
}
|
|
|
|
genln("");
|
|
|
|
gen_lambda(it->unique_name, it->lambda, false);
|
|
}
|
|
}
|
|
|
|
if (!main && !win_main) {
|
|
compiler_error(0, "Entry point is not defined! Try main or WinMain");
|
|
}
|
|
|
|
if (pctx->emit_type_info) {
|
|
// Generate language.core
|
|
for (S32 i = 0; i < pctx->base_language_ordered_decl_len; i++) {
|
|
Ast_Decl *it = get(&pctx->ordered_decls, i);
|
|
genln("");
|
|
gen_ast(it);
|
|
}
|
|
|
|
// Generate type info
|
|
genln("int64_t type_infos_len = %d;", length(&pctx->all_types));
|
|
genln("Type_Info *type_infos = (Type_Info[]){");
|
|
global_indent++;
|
|
For_Named(pctx->all_types, t) {
|
|
genln("{/*%Q*/.kind = %d, .size = %d, .align = %d, .is_unsigned = %s, .type = %d, ", typestring(t),
|
|
(S32)t->kind, (S32)t->size, (S32)t->align, t->is_unsigned ? "true" : "false", t->type_id);
|
|
switch (t->kind) {
|
|
case TYPE_POINTER:
|
|
case TYPE_SLICE: {
|
|
gen(".base_type = %d", t->base->type_id);
|
|
} break;
|
|
case TYPE_ARRAY: {
|
|
gen(".base_type = %d, ", t->base->type_id);
|
|
gen(".array_size = %d", t->arr.size);
|
|
} break;
|
|
case TYPE_LAMBDA: {
|
|
gen(".lambda_return = %d, ", t->func.ret->type_id);
|
|
gen(".lambda_argument_count = %d, ", t->func.args.len);
|
|
gen(".lambda_arguments = (Type_Info[%d]){", t->func.args.len);
|
|
For_Named(t->func.args, arg) {
|
|
gen("{.type = %d}, ", arg->type_id);
|
|
}
|
|
gen("}");
|
|
} break;
|
|
case TYPE_STRUCT: {
|
|
gen(".struct_member_count = %d, ", t->agg.members.len);
|
|
gen(".struct_members = (Type_Info_Struct_Member[]){");
|
|
For_Named(t->agg.members, m) {
|
|
gen("{.name = (%Q){(uint8_t *)\"%Q\", %d}, .type = %d, .offset = %d}, ", prefixed_string_type, m.name, m.name.len, m.type->type_id, m.offset);
|
|
}
|
|
gen("}");
|
|
} break;
|
|
default: {
|
|
}
|
|
// invalid_default_case;
|
|
}
|
|
gen("},");
|
|
}
|
|
global_indent--;
|
|
gen("};");
|
|
}
|
|
|
|
if (pctx->single_header_library_mode) {
|
|
genln("#endif");
|
|
genln("#ifdef %Q_IMPLEMENTATION ", pctx->single_header_library_name);
|
|
}
|
|
|
|
// Generate actual code
|
|
int index = 0;
|
|
For(pctx->ordered_decls) {
|
|
if (index >= pctx->base_language_ordered_decl_len) {
|
|
genln("");
|
|
gen_ast(it);
|
|
}
|
|
index += 1;
|
|
}
|
|
|
|
if (pctx->single_header_library_mode) {
|
|
genln("#endif");
|
|
}
|
|
|
|
String string_result = string_flatten(pctx->perm, &pctx->gen);
|
|
pctx->time.code_generation = os_time() - pctx->time.code_generation;
|
|
return string_result;
|
|
}
|