zzy
4144f7841c
- 在argparse库中将所有null指针常量替换为nullptr - 更新头文件和源文件中的指针初始化和比较操作 - 修改测试文件中的相关断言检查 - 更新AST定义文件中的注释说明
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
#ifndef __SCC_LEXER_UTILS_H__
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#define __SCC_LEXER_UTILS_H__
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#include "scc_lexer.h"
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static inline void scc_lexer_gen_number_true(scc_lexer_tok_t *tok) {
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Assert(tok != nullptr && tok->type == SCC_TOK_UNKNOWN);
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tok->type = SCC_TOK_INT_LITERAL;
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tok->lexeme = scc_str_from_cstr("1");
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}
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static inline void scc_lexer_gen_number_false(scc_lexer_tok_t *tok) {
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Assert(tok != nullptr && tok->type == SCC_TOK_UNKNOWN);
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tok->type = SCC_TOK_INT_LITERAL;
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tok->lexeme = scc_str_from_cstr("0");
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}
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static inline cbool scc_lexer_peek_non_blank(scc_lexer_tok_ring_t *stream,
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scc_lexer_tok_t *out) {
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cbool ok;
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while (1) {
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scc_ring_peek(*stream, *out, ok);
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if (!ok || out->type != SCC_TOK_BLANK)
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break;
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scc_ring_next_consume(*stream, *out, ok);
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scc_lexer_tok_drop(out);
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}
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return ok;
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}
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static inline cbool scc_lexer_next_non_blank(scc_lexer_tok_ring_t *stream,
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scc_lexer_tok_t *out) {
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cbool ok;
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if (!scc_lexer_peek_non_blank(stream, out))
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return false;
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scc_ring_next_consume(*stream, *out, ok);
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return true;
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}
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static inline void scc_lexer_skip_until_newline(scc_lexer_tok_ring_t *stream) {
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scc_lexer_tok_t tok;
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cbool ok;
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while (1) {
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scc_ring_next_consume(*stream, tok, ok);
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if (!ok)
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break;
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scc_tok_type_t type = tok.type;
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scc_lexer_tok_drop(&tok);
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if (type == SCC_TOK_ENDLINE)
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break;
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}
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}
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#endif /* __SCC_LEXER_UTILS_H__ */
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