1369 lines
39 KiB
C++
1369 lines
39 KiB
C++
/*
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* Mr. 4th Dimention - Allen Webster
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*
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* 01.11.2016
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*
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* meta-compilation core system
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*
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*/
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// TOP
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#if !defined(FRED_META_PARSER_CPP)
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#define FRED_META_PARSER_CPP
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struct Parse_Context{
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Cpp_Token *token_s;
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Cpp_Token *token_e;
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Cpp_Token *token;
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char *data;
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};
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struct Argument{
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String param_string;
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String param_name;
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};
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struct Argument_Breakdown{
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i32 count;
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Argument *args;
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};
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struct Documentation{
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i32 param_count;
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String *param_name;
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String *param_docs;
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String return_doc;
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String main_doc;
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i32 see_also_count;
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String *see_also;
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};
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enum Item_Type{
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Item_Null,
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Item_Function,
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Item_CppName,
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Item_Macro,
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Item_Typedef,
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Item_Struct,
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Item_Union,
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Item_Enum,
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Item_Type_Count,
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#define Item_Type_User0 Item_Type_Count
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};
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struct Item_Node{
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i32 t;
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String cpp_name;
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String name;
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String ret;
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String args;
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String body;
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String marker;
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String value;
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String type;
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String type_postfix;
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String doc_string;
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Argument_Breakdown breakdown;
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Documentation doc;
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Item_Node *first_child;
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Item_Node *next_sibling;
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};
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struct Item_Set{
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Item_Node *items;
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i32 count;
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};
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struct Parse{
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String code;
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Cpp_Token_Array tokens;
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i32 item_count;
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};
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struct Meta_Unit{
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Item_Set set;
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Parse *parse;
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i32 count;
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};
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struct Meta_Keywords{
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String key;
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Item_Type type;
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};
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struct Used_Links{
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String *strs;
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i32 count, max;
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};
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internal Item_Node null_item_node = {};
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internal String
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str_start_end(char *data, i32 start, i32 end){
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return(make_string(data + start, end - start));
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}
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internal String
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get_lexeme(Cpp_Token token, char *code){
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String str = make_string(code + token.start, token.size);
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return(str);
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}
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internal Parse_Context
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setup_parse_context(char *data, Cpp_Token_Array array){
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Parse_Context context;
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context.token_s = array.tokens;
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context.token_e = array.tokens + array.count;
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context.token = context.token_s;
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context.data = data;
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return(context);
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}
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internal Parse_Context
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setup_parse_context(Parse parse){
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Parse_Context context;
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context.token_s = parse.tokens.tokens;
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context.token_e = parse.tokens.tokens + parse.tokens.count;
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context.token = context.token_s;
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context.data = parse.code.str;
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return(context);
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}
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internal Cpp_Token*
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get_token(Parse_Context *context){
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Cpp_Token *result = context->token;
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if (result >= context->token_e){
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result = 0;
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}
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return(result);
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}
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internal Cpp_Token*
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get_next_token(Parse_Context *context){
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Cpp_Token *result = context->token+1;
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context->token = result;
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if (result >= context->token_e){
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result = 0;
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context->token = context->token_e;
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}
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return(result);
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}
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internal Cpp_Token*
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get_prev_token(Parse_Context *context){
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Cpp_Token *result = context->token-1;
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if (result < context->token_s){
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result = 0;
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}
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else{
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context->token = result;
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}
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return(result);
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}
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internal Cpp_Token*
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can_back_step(Parse_Context *context){
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Cpp_Token *result = context->token-1;
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if (result < context->token_s){
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result = 0;
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}
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return(result);
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}
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internal Cpp_Token*
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set_token(Parse_Context *context, Cpp_Token *token){
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Cpp_Token *result = 0;
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if (token >= context->token_s && token < context->token_e){
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context->token = token;
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result = token;
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}
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return(result);
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}
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internal Item_Set
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allocate_item_set(Partition *part, i32 count){
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Item_Set item_set = {};
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if (count > 0){
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item_set.items = push_array(part, Item_Node, count);
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item_set.count = count;
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memset(item_set.items, 0, sizeof(Item_Node)*count);
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}
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return(item_set);
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}
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internal String
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file_dump(char *filename){
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String result = {};
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FILE *file = fopen(filename, "rb");
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if (file){
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fseek(file, 0, SEEK_END);
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result.size = ftell(file);
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fseek(file, 0, SEEK_SET);
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result.memory_size = result.size + 1;
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result.str = (char*)malloc(result.memory_size);
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fread(result.str, 1, result.size, file);
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result.str[result.size] = 0;
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fclose(file);
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}
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return(result);
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}
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internal Parse
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meta_lex(char *filename){
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Parse result = {};
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result.code = file_dump(filename);
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if (result.code.str != 0){
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result.tokens = cpp_make_token_array(1024);
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cpp_lex_file(result.code.str, result.code.size, &result.tokens);
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}
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return(result);
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}
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internal String
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get_first_line(String source){
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String line = {};
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i32 pos = find_s_char(source, 0, '\n');
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line = substr(source, 0, pos);
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return(line);
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}
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internal String
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get_next_line(String source, String line){
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String next = {};
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i32 pos = (i32)(line.str - source.str) + line.size;
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i32 start = 0;
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if (pos < source.size){
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Assert(source.str[pos] == '\n');
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start = pos + 1;
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if (start < source.size){
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pos = find_s_char(source, start, '\n');
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next = substr(source, start, pos - start);
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}
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}
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return(next);
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}
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internal i32
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is_comment(String str){
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i32 result = 0;
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if (str.size >= 2){
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if (str.str[0] == '/' &&
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str.str[1] == '/'){
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result = 1;
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}
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}
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return(result);
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}
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typedef enum Doc_Note_Type{
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DOC_PARAM,
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DOC_RETURN,
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DOC,
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DOC_SEE,
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DOC_HIDE,
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HIDE_MEMBERS,
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} Doc_Note_Type;
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internal String
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defined_doc_notes[] = {
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make_lit_string("DOC_PARAM"),
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make_lit_string("DOC_RETURN"),
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make_lit_string("DOC"),
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make_lit_string("DOC_SEE"),
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make_lit_string("DOC_HIDE"),
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make_lit_string("HIDE_MEMBERS"),
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};
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internal i32
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check_and_fix_docs(String *doc_string){
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i32 result = false;
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if (doc_string->size > 4){
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if (doc_string->str[0] == '/'){
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if (doc_string->str[1] == '*'){
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if (doc_string->str[doc_string->size - 2] == '*'){
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if (doc_string->str[doc_string->size - 1] == '/'){
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result = true;
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doc_string->str += 2;
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doc_string->size -= 4;
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}
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}
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}
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}
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}
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return(result);
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}
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internal i32
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get_doc_string_from_prev(Parse_Context *context, String *doc_string){
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i32 result = false;
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if (can_back_step(context)){
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Cpp_Token *prev_token = get_token(context) - 1;
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if (prev_token->type == CPP_TOKEN_COMMENT){
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*doc_string = get_lexeme(*prev_token, context->data);
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if (check_and_fix_docs(doc_string)){
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result = true;
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}
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else{
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*doc_string = null_string;
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}
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}
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}
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return(result);
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}
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internal String
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doc_parse_note(String source, i32 *pos){
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String result = {};
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i32 p = *pos;
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i32 start = p;
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for (; p < source.size; ++p){
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if (source.str[p] == '('){
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break;
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}
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}
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if (p != source.size){
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result = make_string(source.str + start, p - start);
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result = skip_chop_whitespace(result);
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}
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*pos = p;
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return(result);
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}
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internal String
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doc_parse_note_string(String source, i32 *pos){
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String result = {};
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Assert(source.str[*pos] == '(');
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i32 p = *pos + 1;
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i32 start = p;
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i32 nest_level = 0;
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for (; p < source.size; ++p){
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if (source.str[p] == ')'){
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if (nest_level == 0){
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break;
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}
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else{
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--nest_level;
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}
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}
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else if (source.str[p] == '('){
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++nest_level;
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}
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}
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if (p != source.size){
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result = make_string(source.str + start, p - start);
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result = skip_chop_whitespace(result);
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++p;
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}
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*pos = p;
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return(result);
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}
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internal String
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doc_parse_parameter(String source, i32 *pos){
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String result = {};
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i32 p = *pos;
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i32 start = p;
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for (; p < source.size; ++p){
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if (source.str[p] == ','){
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break;
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}
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}
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if (p != source.size){
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result = make_string(source.str + start, p - start);
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result = skip_chop_whitespace(result);
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++p;
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}
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*pos = p;
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return(result);
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}
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internal String
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doc_parse_last_parameter(String source, i32 *pos){
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String result = {};
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i32 p = *pos;
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i32 start = p;
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for (; p < source.size; ++p){
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if (source.str[p] == ')'){
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break;
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}
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}
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if (p == source.size){
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result = make_string(source.str + start, p - start);
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result = skip_chop_whitespace(result);
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}
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*pos = p;
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return(result);
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}
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internal void
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perform_doc_parse(Partition *part, String doc_string, Documentation *doc){
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i32 keep_parsing = true;
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i32 pos = 0;
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i32 param_count = 0;
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i32 see_count = 0;
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do{
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String doc_note = doc_parse_note(doc_string, &pos);
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if (doc_note.size == 0){
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keep_parsing = false;
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}
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else{
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i32 doc_note_type;
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if (string_set_match(defined_doc_notes, ArrayCount(defined_doc_notes), doc_note, &doc_note_type)){
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doc_parse_note_string(doc_string, &pos);
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switch (doc_note_type){
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case DOC_PARAM: ++param_count; break;
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case DOC_SEE: ++see_count; break;
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}
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}
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}
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}while(keep_parsing);
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if (param_count + see_count > 0){
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i32 memory_size = sizeof(String)*(2*param_count + see_count);
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doc->param_name = push_array(part, String, memory_size);
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doc->param_docs = doc->param_name + param_count;
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doc->see_also = doc->param_docs + param_count;
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doc->param_count = param_count;
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doc->see_also_count = see_count;
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}
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i32 param_index = 0;
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i32 see_index = 0;
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keep_parsing = true;
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pos = 0;
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do{
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String doc_note = doc_parse_note(doc_string, &pos);
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if (doc_note.size == 0){
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keep_parsing = false;
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}
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else{
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i32 doc_note_type;
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if (string_set_match(defined_doc_notes, ArrayCount(defined_doc_notes), doc_note, &doc_note_type)){
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String doc_note_string = doc_parse_note_string(doc_string, &pos);
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switch (doc_note_type){
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case DOC_PARAM:
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{
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Assert(param_index < param_count);
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i32 param_pos = 0;
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String param_name = doc_parse_parameter(doc_note_string, ¶m_pos);
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String param_docs = doc_parse_last_parameter(doc_note_string, ¶m_pos);
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doc->param_name[param_index] = param_name;
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doc->param_docs[param_index] = param_docs;
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++param_index;
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}break;
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case DOC_RETURN:
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{
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doc->return_doc = doc_note_string;
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}break;
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case DOC:
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{
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doc->main_doc = doc_note_string;
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}break;
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case DOC_SEE:
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{
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Assert(see_index < see_count);
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doc->see_also[see_index++] = doc_note_string;
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}break;
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}
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}
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else{
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fprintf(stderr, "warning: invalid doc note %.*s\n", doc_note.size, doc_note.str);
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}
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}
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}while(keep_parsing);
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}
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|
|
internal i32
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struct_parse(Partition *part, i32 is_struct, Parse_Context *context, Item_Node *top_member);
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|
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internal i32
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struct_parse_member(Parse_Context *context, Item_Node *member){
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i32 result = false;
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|
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Cpp_Token *token = get_token(context);
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|
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String doc_string = {};
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get_doc_string_from_prev(context, &doc_string);
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|
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Cpp_Token *start_token = token;
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|
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for (; (token = get_token(context)) != 0; get_next_token(context)){
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if (token->type == CPP_TOKEN_SEMICOLON){
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break;
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}
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}
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|
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if (token){
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String name = {};
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Cpp_Token *token_j = 0;
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i32 nest_level = 0;
|
|
|
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for (; (token_j = get_token(context)) > start_token; get_prev_token(context)){
|
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if (token_j->type == CPP_TOKEN_BRACKET_CLOSE){
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++nest_level;
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}
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else if (token_j->type == CPP_TOKEN_BRACKET_OPEN){
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--nest_level;
|
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if (nest_level < 0){
|
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break;
|
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}
|
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}
|
|
|
|
if (nest_level == 0){
|
|
if (token_j->type == CPP_TOKEN_IDENTIFIER){
|
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break;
|
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}
|
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}
|
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}
|
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|
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name = skip_chop_whitespace(get_lexeme(*token_j, context->data));
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|
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String type = skip_chop_whitespace(str_start_end(context->data, start_token->start, token_j->start));
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|
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String type_postfix = skip_chop_whitespace(str_start_end(context->data, token_j->start + token_j->size, token->start));
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set_token(context, token+1);
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result = true;
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member->name = name;
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member->type = type;
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member->type_postfix = type_postfix;
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member->doc_string = doc_string;
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member->first_child = 0;
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member->next_sibling = 0;
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}
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|
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return(result);
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}
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|
|
internal Item_Node*
|
|
struct_parse_next_member(Partition *part, Parse_Context *context){
|
|
Item_Node *result = 0;
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|
|
Cpp_Token *token = 0;
|
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|
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for (; (token = get_token(context)) != 0; get_next_token(context)){
|
|
if (token->type == CPP_TOKEN_IDENTIFIER ||
|
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(token->flags & CPP_TFLAG_IS_KEYWORD)){
|
|
String lexeme = get_lexeme(*token, context->data);
|
|
|
|
if (match(lexeme, "STRUCT")){
|
|
Item_Node *member = push_array(part, Item_Node, 1);
|
|
if (struct_parse(part, true, context, member)){
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result = member;
|
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break;
|
|
}
|
|
else{
|
|
Assert(!"unhandled error");
|
|
}
|
|
}
|
|
else if (match(lexeme, "UNION")){
|
|
Item_Node *member = push_array(part, Item_Node, 1);
|
|
if (struct_parse(part, false, context, member)){
|
|
result = member;
|
|
break;
|
|
}
|
|
else{
|
|
Assert(!"unhandled error");
|
|
}
|
|
}
|
|
else{
|
|
Item_Node *member = push_array(part, Item_Node, 1);
|
|
if (struct_parse_member(context, member)){
|
|
result = member;
|
|
break;
|
|
}
|
|
else{
|
|
Assert(!"unhandled error");
|
|
}
|
|
}
|
|
}
|
|
else if (token->type == CPP_TOKEN_BRACE_CLOSE){
|
|
break;
|
|
}
|
|
}
|
|
|
|
return(result);
|
|
}
|
|
|
|
internal i32
|
|
struct_parse(Partition *part, i32 is_struct, Parse_Context *context, Item_Node *top_member){
|
|
i32 result = false;
|
|
|
|
Cpp_Token *start_token = get_token(context);
|
|
Cpp_Token *token = 0;
|
|
|
|
String doc_string = {};
|
|
get_doc_string_from_prev(context, &doc_string);
|
|
|
|
for (; (token = get_token(context)) != 0; get_next_token(context)){
|
|
if (token->type == CPP_TOKEN_BRACE_OPEN){
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (token){
|
|
Cpp_Token *token_j = token;
|
|
|
|
for (; (token_j = get_token(context)) > start_token; get_prev_token(context)){
|
|
if (token_j->type == CPP_TOKEN_IDENTIFIER){
|
|
break;
|
|
}
|
|
}
|
|
|
|
String name = {};
|
|
if (token_j != start_token){
|
|
name = skip_chop_whitespace(get_lexeme(*token_j, context->data));
|
|
}
|
|
|
|
String type = {};
|
|
if (is_struct){
|
|
type = make_lit_string("struct");
|
|
}
|
|
else{
|
|
type = make_lit_string("union");
|
|
}
|
|
|
|
set_token(context, token+1);
|
|
Item_Node *new_member = struct_parse_next_member(part, context);
|
|
|
|
if (new_member){
|
|
top_member->first_child = new_member;
|
|
|
|
Item_Node *head_member = new_member;
|
|
for(;;){
|
|
new_member = struct_parse_next_member(part, context);
|
|
if (new_member){
|
|
head_member->next_sibling = new_member;
|
|
head_member = new_member;
|
|
}
|
|
else{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (; (token = get_token(context)) != 0; get_next_token(context)){
|
|
if (token->type == CPP_TOKEN_SEMICOLON){
|
|
break;
|
|
}
|
|
}
|
|
++token;
|
|
|
|
if (is_struct){
|
|
top_member->t = Item_Struct;
|
|
}
|
|
else{
|
|
top_member->t = Item_Union;
|
|
}
|
|
top_member->name = name;
|
|
top_member->type = type;
|
|
top_member->doc_string = doc_string;
|
|
top_member->next_sibling = 0;
|
|
|
|
result = true;
|
|
}
|
|
|
|
return(result);
|
|
}
|
|
|
|
internal i32
|
|
typedef_parse(Parse_Context *context, Item_Node *item){
|
|
i32 result = false;
|
|
|
|
Cpp_Token *token = get_token(context);
|
|
String doc_string = {};
|
|
get_doc_string_from_prev(context, &doc_string);
|
|
|
|
Cpp_Token *start_token = token;
|
|
|
|
for (; (token = get_token(context)) != 0; get_next_token(context)){
|
|
if (token->type == CPP_TOKEN_SEMICOLON){
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (token){
|
|
Cpp_Token *token_j = token;
|
|
|
|
for (; (token_j = get_token(context)) > start_token; get_prev_token(context)){
|
|
if (token_j->type == CPP_TOKEN_IDENTIFIER){
|
|
break;
|
|
}
|
|
}
|
|
|
|
String name = get_lexeme(*token_j, context->data);
|
|
|
|
String type = skip_chop_whitespace(str_start_end(context->data, start_token->start + start_token->size, token_j->start));
|
|
|
|
item->t = Item_Typedef;
|
|
item->type = type;
|
|
item->name = name;
|
|
item->doc_string = doc_string;
|
|
result = true;
|
|
}
|
|
|
|
set_token(context, token);
|
|
|
|
return(result);
|
|
}
|
|
|
|
internal i32
|
|
enum_parse(Partition *part, Parse_Context *context, Item_Node *item){
|
|
i32 result = false;
|
|
|
|
String parent_doc_string = {};
|
|
get_doc_string_from_prev(context, &parent_doc_string);
|
|
|
|
Cpp_Token *parent_start_token = get_token(context);
|
|
Cpp_Token *token = 0;
|
|
|
|
for (; (token = get_token(context)) != 0; get_next_token(context)){
|
|
if (token->type == CPP_TOKEN_BRACE_OPEN){
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (token){
|
|
String parent_name = {};
|
|
Cpp_Token *token_j = 0;
|
|
|
|
for (; (token_j = get_token(context)) != 0; get_prev_token(context)){
|
|
if (token_j->type == CPP_TOKEN_IDENTIFIER){
|
|
break;
|
|
}
|
|
}
|
|
|
|
parent_name = get_lexeme(*token_j, context->data);
|
|
|
|
set_token(context, token);
|
|
for (; (token = get_token(context)) > parent_start_token; get_next_token(context)){
|
|
if (token->type == CPP_TOKEN_BRACE_OPEN){
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (token){
|
|
Item_Node *first_member = 0;
|
|
Item_Node *head_member = 0;
|
|
|
|
for (; (token = get_token(context)) != 0; get_next_token(context)){
|
|
if (token->type == CPP_TOKEN_BRACE_CLOSE){
|
|
break;
|
|
}
|
|
else if (token->type == CPP_TOKEN_IDENTIFIER){
|
|
String doc_string = {};
|
|
String name = {};
|
|
String value = {};
|
|
get_doc_string_from_prev(context, &doc_string);
|
|
|
|
name = get_lexeme(*token, context->data);
|
|
|
|
token = get_next_token(context);
|
|
|
|
if (token){
|
|
if (token->type == CPP_TOKEN_EQ){
|
|
Cpp_Token *start_token = token;
|
|
|
|
for (; (token = get_token(context)) != 0; get_next_token(context)){
|
|
if (token->type == CPP_TOKEN_COMMA ||
|
|
token->type == CPP_TOKEN_BRACE_CLOSE){
|
|
break;
|
|
}
|
|
}
|
|
|
|
value = skip_chop_whitespace(str_start_end(context->data, start_token->start + start_token->size, token->start));
|
|
|
|
get_prev_token(context);
|
|
}
|
|
else{
|
|
get_prev_token(context);
|
|
}
|
|
}
|
|
|
|
Item_Node *new_member = push_array(part, Item_Node, 1);
|
|
if (first_member == 0){
|
|
first_member = new_member;
|
|
}
|
|
|
|
if (head_member){
|
|
head_member->next_sibling = new_member;
|
|
}
|
|
head_member = new_member;
|
|
|
|
new_member->name = name;
|
|
new_member->value = value;
|
|
new_member->doc_string = doc_string;
|
|
new_member->next_sibling = 0;
|
|
}
|
|
}
|
|
|
|
if ((token = get_token(context)) != 0){
|
|
for (; (token = get_token(context)) != 0; get_next_token(context)){
|
|
if (token->type == CPP_TOKEN_BRACE_CLOSE){
|
|
break;
|
|
}
|
|
}
|
|
get_next_token(context);
|
|
|
|
item->t = Item_Enum;
|
|
item->name = parent_name;
|
|
item->doc_string = parent_doc_string;
|
|
item->first_child = first_member;
|
|
result = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return(result);
|
|
}
|
|
|
|
internal Argument_Breakdown
|
|
allocate_argument_breakdown(Partition *part, i32 count){
|
|
Argument_Breakdown breakdown = {};
|
|
if (count > 0){
|
|
breakdown.count = count;
|
|
breakdown.args = push_array(part, Argument, count);
|
|
memset(breakdown.args, 0, sizeof(Argument)*count);
|
|
}
|
|
return(breakdown);
|
|
}
|
|
|
|
/*
|
|
Parse arguments by giving pointers to the tokens:
|
|
foo(a, ... , z)
|
|
^ ^
|
|
*/
|
|
internal Argument_Breakdown
|
|
parameter_parse(Partition *part, char *data, Cpp_Token *args_start_token, Cpp_Token *args_end_token){
|
|
i32 arg_index = 0;
|
|
Cpp_Token *arg_token = args_start_token + 1;
|
|
i32 param_string_start = arg_token->start;
|
|
|
|
i32 arg_count = 1;
|
|
arg_token = args_start_token;
|
|
for (; arg_token < args_end_token; ++arg_token){
|
|
if (arg_token->type == CPP_TOKEN_COMMA){
|
|
++arg_count;
|
|
}
|
|
}
|
|
|
|
Argument_Breakdown breakdown = allocate_argument_breakdown(part, arg_count);
|
|
|
|
arg_token = args_start_token + 1;
|
|
for (; arg_token <= args_end_token; ++arg_token){
|
|
if (arg_token->type == CPP_TOKEN_COMMA ||
|
|
arg_token->type == CPP_TOKEN_PARENTHESE_CLOSE){
|
|
|
|
i32 size = arg_token->start - param_string_start;
|
|
String param_string = make_string(data + param_string_start, size);
|
|
param_string = chop_whitespace(param_string);
|
|
breakdown.args[arg_index].param_string = param_string;
|
|
|
|
for (Cpp_Token *param_name_token = arg_token - 1;
|
|
param_name_token->start > param_string_start;
|
|
--param_name_token){
|
|
if (param_name_token->type == CPP_TOKEN_IDENTIFIER){
|
|
i32 name_start = param_name_token->start;
|
|
i32 name_size = param_name_token->size;
|
|
breakdown.args[arg_index].param_name = make_string(data + name_start, name_size);
|
|
break;
|
|
}
|
|
}
|
|
|
|
++arg_index;
|
|
|
|
if (arg_token+1 <= args_end_token){
|
|
param_string_start = arg_token[1].start;
|
|
}
|
|
}
|
|
}
|
|
|
|
return(breakdown);
|
|
}
|
|
|
|
/*
|
|
Moves the context in the following way:
|
|
~~~~~~~ name( ~~~~~~~
|
|
^ -> ^
|
|
*/
|
|
internal i32
|
|
function_parse_goto_name(Parse_Context *context){
|
|
i32 result = false;
|
|
|
|
Cpp_Token *token = 0;
|
|
|
|
{
|
|
for (; (token = get_token(context)) != 0; get_next_token(context)){
|
|
if (token->type == CPP_TOKEN_PARENTHESE_OPEN){
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (get_token(context)){
|
|
do{
|
|
token = get_prev_token(context);
|
|
}while(token->type == CPP_TOKEN_COMMENT);
|
|
|
|
if (token->type == CPP_TOKEN_IDENTIFIER){
|
|
result = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return(result);
|
|
}
|
|
|
|
/*
|
|
Moves the context in the following way:
|
|
~~~~~~~ name( ~~~~~~~ /* XXX //
|
|
^ ---------------> ^
|
|
*/
|
|
internal i32
|
|
function_get_doc(Parse_Context *context, char *data, String *doc_string){
|
|
i32 result = false;
|
|
|
|
Cpp_Token *token = get_token(context);
|
|
String lexeme = {};
|
|
|
|
if (function_parse_goto_name(context)){
|
|
if (token->type == CPP_TOKEN_IDENTIFIER){
|
|
for (; (token = get_token(context)) != 0; get_next_token(context)){
|
|
if (token->type == CPP_TOKEN_COMMENT){
|
|
lexeme = get_lexeme(*token, data);
|
|
if (check_and_fix_docs(&lexeme)){
|
|
*doc_string = lexeme;
|
|
result = true;
|
|
break;
|
|
}
|
|
}
|
|
else if (token->type == CPP_TOKEN_BRACE_OPEN){
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return(result);
|
|
}
|
|
|
|
internal i32
|
|
cpp_name_parse(Parse_Context *context, String *name){
|
|
i32 result = false;
|
|
|
|
Cpp_Token *token = 0;
|
|
Cpp_Token *token_start = get_token(context);
|
|
|
|
token = get_next_token(context);
|
|
if (token && token->type == CPP_TOKEN_PARENTHESE_OPEN){
|
|
token = get_next_token(context);
|
|
if (token && token->type == CPP_TOKEN_IDENTIFIER){
|
|
token = get_next_token(context);
|
|
if (token && token->type == CPP_TOKEN_PARENTHESE_CLOSE){
|
|
*name = get_lexeme(*(token-1), context->data);
|
|
result = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!result){
|
|
set_token(context, token_start);
|
|
}
|
|
|
|
return(result);
|
|
}
|
|
|
|
/*
|
|
Moves the context in the following way:
|
|
RETTY~ name( ~~~~~~~ )
|
|
^ ---------------> ^
|
|
*/
|
|
internal i32
|
|
function_sig_parse(Partition *part, Parse_Context *context, Item_Node *item, String cpp_name){
|
|
i32 result = false;
|
|
|
|
Cpp_Token *token = 0;
|
|
Cpp_Token *args_start_token = 0;
|
|
Cpp_Token *ret_token = get_token(context);
|
|
|
|
if (function_parse_goto_name(context)){
|
|
token = get_token(context);
|
|
args_start_token = token+1;
|
|
item->name = get_lexeme(*token, context->data);
|
|
|
|
item->ret = chop_whitespace(str_start_end(context->data, ret_token->start, token->start));
|
|
|
|
for (; (token = get_token(context)) != 0; get_next_token(context)){
|
|
if (token->type == CPP_TOKEN_PARENTHESE_CLOSE){
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (token){
|
|
item->args = str_start_end(context->data, args_start_token->start, token->start + token->size);
|
|
item->t = Item_Function;
|
|
item->cpp_name = cpp_name;
|
|
item->breakdown = parameter_parse(part, context->data, args_start_token, token);
|
|
|
|
Assert(get_token(context)->type == CPP_TOKEN_PARENTHESE_CLOSE);
|
|
result = true;
|
|
}
|
|
}
|
|
|
|
return(result);
|
|
}
|
|
|
|
/*
|
|
Moves the context in the following way:
|
|
MARKER ~~~ name( ~~~~~~~ )
|
|
^ -------------------> ^
|
|
*/
|
|
internal i32
|
|
function_parse(Partition *part, Parse_Context *context, Item_Node *item, String cpp_name){
|
|
i32 result = false;
|
|
|
|
String doc_string = {};
|
|
Cpp_Token *token = get_token(context);
|
|
|
|
item->marker = get_lexeme(*token, context->data);
|
|
|
|
if (function_get_doc(context, context->data, &doc_string)){
|
|
item->doc_string = doc_string;
|
|
}
|
|
|
|
set_token(context, token);
|
|
if (get_next_token(context)){
|
|
if (function_sig_parse(part, context, item, cpp_name)){
|
|
Assert(get_token(context)->type == CPP_TOKEN_PARENTHESE_CLOSE);
|
|
result = true;
|
|
}
|
|
}
|
|
|
|
return(result);
|
|
}
|
|
|
|
/*
|
|
Moves the context in the following way:
|
|
/* ~~~ // #define
|
|
^ ----> ^
|
|
*/
|
|
internal i32
|
|
macro_parse_check(Parse_Context *context){
|
|
i32 result = false;
|
|
|
|
Cpp_Token *token = 0;
|
|
|
|
if ((token = get_next_token(context)) != 0){
|
|
if (token->type == CPP_TOKEN_COMMENT){
|
|
if ((token = get_next_token(context)) != 0){
|
|
if (token->type == CPP_PP_DEFINE){
|
|
result = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return(result);
|
|
}
|
|
|
|
/*
|
|
Moves the context in the following way:
|
|
/* ~~~ // #define ~~~~~~~~~~~~~~~~~ NOT_IN_MACRO_BODY
|
|
^ ----------------------------> ^
|
|
*/
|
|
internal i32
|
|
macro_parse(Partition *part, Parse_Context *context, Item_Node *item){
|
|
i32 result = false;
|
|
|
|
Cpp_Token *token = 0;
|
|
Cpp_Token *doc_token = 0;
|
|
Cpp_Token *args_start_token = 0;
|
|
|
|
String doc_string = {};
|
|
|
|
if (macro_parse_check(context)){
|
|
token = get_token(context);
|
|
if (can_back_step(context)){
|
|
doc_token = token-1;
|
|
|
|
doc_string = get_lexeme(*doc_token, context->data);
|
|
|
|
if (check_and_fix_docs(&doc_string)){
|
|
item->doc_string = doc_string;
|
|
|
|
for (; (token = get_token(context)) != 0; get_next_token(context)){
|
|
if (token->type == CPP_TOKEN_IDENTIFIER){
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (get_token(context) && (token->flags & CPP_TFLAG_PP_BODY)){
|
|
item->name = get_lexeme(*token, context->data);
|
|
|
|
if ((token = get_next_token(context)) != 0){
|
|
args_start_token = token;
|
|
for (; (token = get_token(context)) != 0; get_next_token(context)){
|
|
if (token->type == CPP_TOKEN_PARENTHESE_CLOSE){
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (token){
|
|
item->args = str_start_end(context->data, args_start_token->start, token->start + token->size);
|
|
|
|
item->breakdown = parameter_parse(part, context->data, args_start_token, token);
|
|
|
|
if ((token = get_next_token(context)) != 0){
|
|
Cpp_Token *body_start = token;
|
|
|
|
if (body_start->flags & CPP_TFLAG_PP_BODY){
|
|
for (; (token = get_token(context)) != 0; get_next_token(context)){
|
|
if (!(token->flags & CPP_TFLAG_PP_BODY)){
|
|
break;
|
|
}
|
|
}
|
|
|
|
token = get_prev_token(context);
|
|
|
|
item->body = str_start_end(context->data, body_start->start,token->start + token->size);
|
|
}
|
|
}
|
|
|
|
item->t = Item_Macro;
|
|
result = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return(result);
|
|
}
|
|
|
|
internal Meta_Unit
|
|
compile_meta_unit(Partition *part, char *code_directory, char **files, Meta_Keywords *meta_keywords, i32 key_count){
|
|
Meta_Unit unit = {};
|
|
|
|
i32 file_count = 0;
|
|
for (char **file_ptr = files; *file_ptr; ++file_ptr, ++file_count);
|
|
|
|
unit.count = file_count;
|
|
unit.parse = push_array(part, Parse, file_count);
|
|
|
|
b32 all_files_lexed = true;
|
|
i32 i = 0;
|
|
for (char **file_ptr = files; *file_ptr; ++file_ptr, ++i){
|
|
char str_space[512];
|
|
String name = make_fixed_width_string(str_space);
|
|
append_sc(&name, code_directory);
|
|
#if defined(_WIN32)
|
|
append_sc(&name, "\\");
|
|
#else
|
|
append_sc(&name, "/");
|
|
#endif
|
|
append_sc(&name, *file_ptr);
|
|
terminate_with_null(&name);
|
|
|
|
unit.parse[i] = meta_lex(name.str);
|
|
if (unit.parse[i].code.str == 0){
|
|
all_files_lexed = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (all_files_lexed){
|
|
// TODO(allen): This stage counts nested structs and unions which is not correct. Luckily it only means we over allocate by a few items, but fixing it to be exactly correct would be nice.
|
|
for (i32 J = 0; J < unit.count; ++J){
|
|
Cpp_Token *token = 0;
|
|
Parse_Context context_ = setup_parse_context(unit.parse[J]);
|
|
Parse_Context *context = &context_;
|
|
|
|
for (; (token = get_token(context)) != 0; get_next_token(context)){
|
|
if (!(token->flags & CPP_TFLAG_PP_BODY)){
|
|
|
|
String lexeme = get_lexeme(*token, context->data);
|
|
i32 match_index = 0;
|
|
if (string_set_match_table(meta_keywords, sizeof(*meta_keywords), key_count, lexeme, &match_index)){
|
|
Item_Type type = meta_keywords[match_index].type;
|
|
|
|
if (type > Item_Null && type < Item_Type_Count){
|
|
++unit.set.count;
|
|
}
|
|
else{
|
|
// TODO(allen): Warning
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (unit.set.count > 0){
|
|
unit.set = allocate_item_set(part, unit.set.count);
|
|
}
|
|
|
|
i32 index = 0;
|
|
|
|
for (i32 J = 0; J < unit.count; ++J){
|
|
Cpp_Token *token = 0;
|
|
Parse_Context context_ = setup_parse_context(unit.parse[J]);
|
|
Parse_Context *context = &context_;
|
|
|
|
String cpp_name = {};
|
|
i32 has_cpp_name = 0;
|
|
|
|
for (; (token = get_token(context)) != 0; get_next_token(context)){
|
|
if (!(token->flags & CPP_TFLAG_PP_BODY)){
|
|
|
|
String lexeme = get_lexeme(*token, context->data);
|
|
i32 match_index = 0;
|
|
if (string_set_match_table(meta_keywords, sizeof(*meta_keywords), key_count, lexeme, &match_index)){
|
|
Item_Type type = meta_keywords[match_index].type;
|
|
|
|
switch (type){
|
|
case Item_Function:
|
|
{
|
|
if (function_parse(part, context, unit.set.items + index, cpp_name)){
|
|
Assert(unit.set.items[index].t == Item_Function);
|
|
++index;
|
|
}
|
|
else{
|
|
fprintf(stderr, "warning: invalid function signature\n");
|
|
}
|
|
}break;
|
|
|
|
case Item_CppName:
|
|
{
|
|
if (cpp_name_parse(context, &cpp_name)){
|
|
has_cpp_name = 1;
|
|
}
|
|
else{
|
|
// TODO(allen): warning message
|
|
}
|
|
}break;
|
|
|
|
case Item_Macro:
|
|
{
|
|
if (macro_parse(part, context, unit.set.items + index)){
|
|
Assert(unit.set.items[index].t == Item_Macro);
|
|
++index;
|
|
}
|
|
else{
|
|
// TODO(allen): warning message
|
|
}
|
|
}break;
|
|
|
|
case Item_Typedef: //typedef
|
|
{
|
|
if (typedef_parse(context, unit.set.items + index)){
|
|
Assert(unit.set.items[index].t == Item_Typedef);
|
|
++index;
|
|
}
|
|
else{
|
|
// TODO(allen): warning message
|
|
}
|
|
}break;
|
|
|
|
case Item_Struct: case Item_Union: //struct/union
|
|
{
|
|
if (struct_parse(part, (type == Item_Struct), context, unit.set.items + index)){
|
|
Assert(unit.set.items[index].t == Item_Struct ||unit.set.items[index].t == Item_Union);
|
|
++index;
|
|
}
|
|
else{
|
|
// TODO(allen): warning message
|
|
}
|
|
}break;
|
|
|
|
case Item_Enum: //ENUM
|
|
{
|
|
if (enum_parse(part, context, unit.set.items + index)){
|
|
Assert(unit.set.items[index].t == Item_Enum);
|
|
++index;
|
|
}
|
|
else{
|
|
// TODO(allen): warning message
|
|
}
|
|
}break;
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
if (has_cpp_name){
|
|
has_cpp_name = 0;
|
|
}
|
|
else{
|
|
cpp_name = null_string;
|
|
}
|
|
|
|
unit.parse[J].item_count = index;
|
|
}
|
|
|
|
// NOTE(allen): This is necessary for now because
|
|
// the original count is slightly overestimated thanks
|
|
// to nested structs and unions.
|
|
unit.set.count = index;
|
|
}
|
|
}
|
|
else{
|
|
unit.parse = 0;
|
|
unit.count = 0;
|
|
}
|
|
|
|
return(unit);
|
|
}
|
|
|
|
internal Meta_Unit
|
|
compile_meta_unit(Partition *part, char *code_directory, char *file, Meta_Keywords *meta_keywords, i32 key_count){
|
|
char *file_array[2] = {file, 0};
|
|
Meta_Unit unit = compile_meta_unit(part, code_directory, file_array, meta_keywords, key_count);
|
|
return(unit);
|
|
}
|
|
|
|
#endif
|
|
|
|
// BOTTOM
|
|
|