ZZY
2b4857001c
- 添加 .gitignore 文件，忽略编译器生成的二进制文件 - 重构 lexer.c 文件，改进了关键字处理和字符串处理 - 更新前端的前端、解析器和 AST 相关文件，以适应新的词法分析器 - 优化了 token 相关的定义和函数，引入了新的 token 类型
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
#include "../ast.h"
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#include "../parser.h"
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#include "../type.h"
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ast_node_t* new_ast_ident_node(tok_t* tok) {
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if (tok->sub_type != TOKEN_IDENT) {
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LOG_ERROR("syntax error: want identifier but got %d", tok->sub_type);
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}
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ast_node_t* node = new_ast_node();
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node->type = NT_TERM_IDENT;
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node->syms.tok = *tok;
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node->syms.decl_node = NULL;
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return node;
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}
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ast_node_t* expect_pop_ident(tok_stream_t* tokbuf) {
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flush_peek_tok(tokbuf);
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tok_t* tok = peek_tok(tokbuf);
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ast_node_t* node = new_ast_ident_node(tok);
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pop_tok(tokbuf);
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return node;
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}
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ast_node_t* parse_type(parser_t* parser) {
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tok_stream_t* tokbuf = &parser->tokbuf;
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flush_peek_tok(tokbuf);
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cc_tktype_t ttype = peek_tok_type(tokbuf);
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data_type_t dtype;
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switch(ttype) {
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case TOKEN_VOID: dtype = TYPE_VOID; break;
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case TOKEN_CHAR: dtype = TYPE_CHAR; break;
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case TOKEN_SHORT: dtype = TYPE_SHORT; break;
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case TOKEN_INT: dtype = TYPE_INT; break;
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case TOKEN_LONG: dtype = TYPE_LONG; break;
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case TOKEN_FLOAT: dtype = TYPE_FLOAT; break;
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case TOKEN_DOUBLE: dtype = TYPE_DOUBLE; break;
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default:
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LOG_ERROR("无效的类型说明符");
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}
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ast_node_t* node = new_ast_node();
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node->type = NT_TERM_TYPE;
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// TODO added by disable warning, will add typing system
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dtype += 1;
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pop_tok(tokbuf);
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if (peek_tok_type(tokbuf) == TOKEN_MUL) {
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pop_tok(tokbuf);
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}
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return node;
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}
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