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
49 lines
1.5 KiB
Rust
49 lines
1.5 KiB
Rust
use crate::lexer::Token;
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#[derive(Debug)]
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pub enum RuntimeError {
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LexError { message: String, line: usize, column: usize },
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ParseError { message: String, token: Token },
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RuntimeError { message: String, token: Option<Token> },
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}
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impl RuntimeError {
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pub fn lex(message: impl Into<String>, line: usize, column: usize) -> Self {
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RuntimeError::LexError {
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message: message.into(),
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line,
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column,
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}
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}
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pub fn parse(message: impl Into<String>, token: Token) -> Self {
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RuntimeError::ParseError {
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message: message.into(),
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token,
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}
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}
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}
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impl std::fmt::Display for RuntimeError {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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match self {
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RuntimeError::LexError { message, line, column } => {
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write!(f, "[Lex Error] {} at line {}, column {}", message, line, column)
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}
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RuntimeError::ParseError { message, token } => {
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write!(f, "[Parse Error] {} at line {}, column {}", message, token.line, token.column)
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}
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RuntimeError::RuntimeError { message, token } => {
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if let Some(tok) = token {
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write!(f, "[Runtime Error] {} at line {}, column {}", message, tok.line, tok.column)
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} else {
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write!(f, "[Runtime Error] {}", message)
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}
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}
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}
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}
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}
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impl std::error::Error for RuntimeError {}
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