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lang: ast: use fancy index manipulation to reduce the size of ast_node_type

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max 🍓
2024-11-28 10:56:43 +00:00
parent f04c858d9a
commit fc76fe6ad4
10 changed files with 80 additions and 64 deletions
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22
lang/ast/node.h
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@@ -12,6 +12,21 @@ struct parser_state;
#define PARSE_RESULT(status, flags) \
((struct token_parse_result) {.r_status = (status), .r_flags = (flags)})
#define __TOK_PARSER_INDEX(x) ((x) - __IVY_TOK_INDEX_BASE)
#define __SYM_PARSER_INDEX(x) ((x) - __IVY_SYM_INDEX_BASE)
#define __KW_PARSER_INDEX(x) ((x) - __IVY_KW_INDEX_BASE)
#define __TOK_PARSER_FALLBACK_INDEX IVY_TOK_NONE
#define __SYM_PARSER_FALLBACK_INDEX IVY_SYM_NONE
#define __KW_PARSER_FALLBACK_INDEX IVY_KW_NONE
#define TOK_PARSER(id, func) [__TOK_PARSER_INDEX(IVY_TOK_##id)] = func
#define SYM_PARSER(id, func) [__SYM_PARSER_INDEX(IVY_SYM_##id)] = func
#define KW_PARSER(id, func) [__KW_PARSER_INDEX(IVY_KW_##id)] = func
#define TOK_PARSER_FALLBACK(func) [__TOK_PARSER_FALLBACK_INDEX] = func
#define SYM_PARSER_FALLBACK(func) [__SYM_PARSER_FALLBACK_INDEX] = func
#define KW_PARSER_FALLBACK(func) [__KW_PARSER_FALLBACK_INDEX] = func
enum token_parse_flags {
PARSE_REPEAT_TOKEN = 0x01u,
@@ -42,9 +57,10 @@ struct ast_node_type {
size_t n_state_size;
size_t n_node_size;
token_parse_function n_token_parsers[IVY_TOK_TYPE_COUNT];
token_parse_function n_keyword_parsers[IVY_KW_TYPE_COUNT];
token_parse_function n_symbol_parsers[IVY_SYM_TYPE_COUNT];
token_parse_function n_token_parsers[__TOK_PARSER_INDEX(__IVY_TOK_INDEX_LIMIT)];
token_parse_function n_keyword_parsers[__KW_PARSER_INDEX(__IVY_KW_INDEX_LIMIT)];
token_parse_function n_symbol_parsers[__SYM_PARSER_INDEX(__IVY_SYM_INDEX_LIMIT)];
struct {
token_parse_function expr_begin;
token_parse_function expr_other;