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elmma bdffe9e3c5 feat: IDE支持 — workspace拆分、LSP服务器、VS Code扩展
**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
2026-06-25 00:28:13 +08:00

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// for-in loop demo
print("=== array ===")
let arr = [10, 20, 30]
for (x in arr) {
print(x)
}
print("=== object keys + values ===")
let obj = {name: "Aster", year: 2025}
for (k in obj) {
print(k + ": " + obj[k])
}
print("=== string chars ===")
for (c in "Hi") {
print(c)
}
print("=== break ===")
for (x in [1, 2, 3, 4, 5]) {
if (x == 3) { break }
print(x)
}