Experiments/libabacus
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Add function to construct an operator tree node from a token.

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This commit is contained in:
Danila Fedorin 2018-02-15 23:12:47 -08:00
parent e11f56ee68
commit ab683cbd7a
1 changed files with 26 additions and 0 deletions
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src/parser.c
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@ -76,6 +76,32 @@ int _parser_match_is_op(libab_lexer_match* match) {
match->type == TOKEN_OP_PREFIX || match->type == TOKEN_OP_PREFIX ||
match->type == TOKEN_OP_POSTFIX; match->type == TOKEN_OP_POSTFIX;
} }
libab_result _parser_construct_op_node(struct parser_state* state, libab_lexer_match* match, libab_tree** into) {
libab_result result = LIBAB_SUCCESS;
if((*into = malloc(sizeof(**into)))) {
result = _parser_extract_token(state, &(*into)->string_value, match);
} else {
result = LIBAB_MALLOC;
}
if(result == LIBAB_SUCCESS) {
result = libab_convert_ds_result(vec_init(&(*into)->children));
if(result == LIBAB_SUCCESS) {
(*into)->variant = OP;
(*into)->from = match->from;
(*into)->to = match->to;
(*into)->line = match->line;
(*into)->line_from = match->line_from;
} else {
free((*into)->string_value);
}
} else {
free(*into);
*into = NULL;
}
return result;
}
libab_result _parse_expression(struct parser_state* state, libab_tree** store_into) { libab_result _parse_expression(struct parser_state* state, libab_tree** store_into) {
libab_result result = LIBAB_SUCCESS; libab_result result = LIBAB_SUCCESS;
return result; return result;