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Implemented preprocesser function.

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This commit is contained in:
Aryadev Chavali
2024-04-15 05:08:55 +06:30
parent 1e1a13e741
commit 8d3951a871
1 changed files with 21 additions and 0 deletions
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21
asm/preprocesser.cpp
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@@ -21,6 +21,27 @@ using std::pair, std::vector, std::make_pair, std::string, std::string_view;
#define ERR(E) std::make_pair(tokens, (E))
#define VAL(E) std::make_pair(E, pp_err_t{pp_err_type_t::OK})
pair<vector<token_t *>, pp_err_t> preprocesser(vector<token_t *> &tokens)
{
vector<token_t *> use_block_tokens;
pp_err_t pperr{pp_err_type_t::OK};
std::tie(use_block_tokens, pperr) = preprocess_use_blocks(tokens);
if (pperr.type != pp_err_type_t::OK)
return ERR(pperr);
vector<token_t *> const_block_tokens;
std::tie(const_block_tokens, pperr) = preprocess_const_blocks(tokens);
if (pperr.type != pp_err_type_t::OK)
{
tokens.clear();
tokens = use_block_tokens;
return ERR(pperr);
}
use_block_tokens.clear();
return VAL(const_block_tokens);
}
pair<vector<token_t *>, pp_err_t>
preprocess_use_blocks(const vector<token_t *> &tokens)
{