78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
#ifndef _AST_NODE_H_
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#define _AST_NODE_H_
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#include <ivy/lang/ast.h>
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#include <ivy/lang/lex.h>
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struct parser_state;
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#define PARSE_RESULT(status, flags) \
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((struct token_parse_result) {.r_status = (status), .r_flags = (flags)})
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#define __TOK_PARSER_INDEX(x) ((x) - __IVY_TOK_INDEX_BASE)
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#define __SYM_PARSER_INDEX(x) ((x) - __IVY_SYM_INDEX_BASE)
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#define __KW_PARSER_INDEX(x) ((x) - __IVY_KW_INDEX_BASE)
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#define __TOK_PARSER_FALLBACK_INDEX IVY_TOK_NONE
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#define __SYM_PARSER_FALLBACK_INDEX IVY_SYM_NONE
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#define __KW_PARSER_FALLBACK_INDEX IVY_KW_NONE
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#define TOK_PARSER(id, func) [__TOK_PARSER_INDEX(IVY_TOK_##id)] = func
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#define SYM_PARSER(id, func) [__SYM_PARSER_INDEX(IVY_SYM_##id)] = func
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#define KW_PARSER(id, func) [__KW_PARSER_INDEX(IVY_KW_##id)] = func
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#define TOK_PARSER_FALLBACK(func) [__TOK_PARSER_FALLBACK_INDEX] = func
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#define SYM_PARSER_FALLBACK(func) [__SYM_PARSER_FALLBACK_INDEX] = func
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#define KW_PARSER_FALLBACK(func) [__KW_PARSER_FALLBACK_INDEX] = func
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enum token_parse_flags {
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PARSE_REPEAT_TOKEN = 0x01u,
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};
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enum token_expr_type {
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TOK_EXPR_NONE = 0,
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TOK_EXPR_BEGIN,
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TOK_EXPR_ANY,
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};
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struct token_parse_result {
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enum ivy_status r_status;
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enum token_parse_flags r_flags;
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};
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typedef struct token_parse_result (*token_parse_function)(
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struct ivy_parser *, struct ivy_token *);
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struct ast_node_type {
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enum ivy_status (*n_add_child)(
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struct parser_state *, struct ivy_ast_node *);
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void (*n_to_string)(struct ivy_ast_node *, struct b_string *);
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void (*n_init_state)(struct ivy_parser *, struct parser_state *, uintptr_t);
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void (*n_collect_children)(
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struct ivy_ast_node *, struct ivy_ast_node_iterator *);
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void (*n_destroy)(struct ivy_ast_node *);
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size_t n_state_size;
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size_t n_node_size;
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token_parse_function n_token_parsers[__TOK_PARSER_INDEX(__IVY_TOK_INDEX_LIMIT)];
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token_parse_function n_keyword_parsers[__KW_PARSER_INDEX(__IVY_KW_INDEX_LIMIT)];
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token_parse_function n_symbol_parsers[__SYM_PARSER_INDEX(__IVY_SYM_INDEX_LIMIT)];
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struct {
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token_parse_function expr_begin;
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token_parse_function expr_other;
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token_parse_function expr_all;
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} n_expr_parser;
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};
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extern const struct ast_node_type *get_ast_node_type(enum ivy_ast_node_type type);
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extern token_parse_function get_token_parser(
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struct ivy_ast_node *context, struct ivy_token *tok);
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extern enum token_expr_type get_token_expr_type(struct ivy_token *tok);
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extern struct ivy_ast_node *ast_node_create(enum ivy_ast_node_type type);
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extern enum ivy_status ast_node_add_child(
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struct ivy_ast_node *parent, struct ivy_ast_node *child);
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#endif
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