Elmma
bdffe9e3c5
**Workspace 拆分** - aster-core: 纯库，zero-dependency，包含 lexer/parser/ast/interpreter/error/analysis - aster: REPL 二进制，薄封装 aster-core - aster-lsp: LSP 语言服务器 **VS Code 扩展 (vscode-ext/)** - TextMate 语法高亮 (.ast 文件) - 语言配置 (注释切换、括号配对、自动缩进) - LSP 客户端 (extension.js) **LSP 服务端功能** - Diagnostics: 实时显示 lex/parse 错误红色波浪线 - Completion: 关键字 + 内置函数 + 用户定义符号补全 - Hover: 悬停显示变量/函数信息 - Signature Help: 函数参数提示 - Goto Definition: Ctrl+Click 跳转到声明处 - Find References: 查找所有引用位置 - Rename: F2 重命名符号 **新增 analysis 模块** - collect_symbols: AST 遍历收集符号 - find_declaration/find_all_references: Token 扫描定位声明和引用
103 lines
2.5 KiB
Rust
103 lines
2.5 KiB
Rust
pub mod lexer;
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pub mod ast;
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pub mod parser;
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pub mod interpreter;
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pub mod error;
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pub mod analysis;
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use lexer::Lexer;
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use parser::Parser;
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use interpreter::Interpreter;
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use error::RuntimeError;
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use std::io::Write;
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use std::io::stdin;
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use std::io::stdout;
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pub fn print_errors(errors: &[RuntimeError]) {
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for err in errors {
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eprintln!("{}", err);
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}
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}
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pub fn run_file(filename: &str, src: String) {
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let (tokens, lex_errors) = Lexer::new(&src).tokenize();
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if !lex_errors.is_empty() {
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print_errors(&lex_errors);
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std::process::exit(65);
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}
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let mut parser = Parser::new(tokens);
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let (stmts, parse_errors) = parser.parse();
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if !parse_errors.is_empty() {
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print_errors(&parse_errors);
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std::process::exit(65);
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}
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let script_dir = std::path::Path::new(filename)
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.parent()
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.map(|p| p.to_string_lossy().to_string())
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.unwrap_or_else(|| ".".to_string());
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let mut interpreter = Interpreter::with_current_dir(script_dir);
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if let Err(e) = interpreter.interpret(stmts) {
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eprintln!("Error: {}", e);
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std::process::exit(70);
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}
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}
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pub fn run_repl() {
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println!("Welcome to Aster REPL!");
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println!("Type ':exit' to quit.");
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println!("Type ':reset' to reset the interpreter state.");
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let mut interpreter = Interpreter::new();
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let mut line = String::new();
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loop {
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print!(">>> ");
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stdout().flush().unwrap();
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line.clear();
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if let Err(e) = stdin().read_line(&mut line) {
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eprintln!("Error reading input: {}", e);
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continue;
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}
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let line = line.trim();
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if line.is_empty() {
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continue;
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}
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match line {
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":exit" => {
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println!("Goodbye!");
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break;
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}
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":reset" => {
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interpreter = Interpreter::new();
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println!("Interpreter reset.");
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continue;
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}
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_ => {}
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}
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let (tokens, lex_errors) = Lexer::new(line).tokenize();
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if !lex_errors.is_empty() {
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print_errors(&lex_errors);
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continue;
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}
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let mut parser = Parser::new(tokens);
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let (stmts, parse_errors) = parser.parse();
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if !parse_errors.is_empty() {
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print_errors(&parse_errors);
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continue;
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}
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if let Err(e) = interpreter.interpret(stmts) {
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eprintln!("Error: {}", e);
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}
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}
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}
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