@x-langjs/ast

AST building, traversal, and scope resolving utilities for x-langjs.

中文

包说明

@x-langjs/ast 负责将 parser 的 CST 构建为 AST，并做作用域解析与 AST 访问。

安装

npm install @x-langjs/ast

主要导出

• ASTBuilder
• ScopeResolver
• visitNode
• ASTVisitor 类型

示例

import { parse as parseCST } from "@x-langjs/parser";
import { ASTBuilder, ScopeResolver } from "@x-langjs/ast";

const { tree, errors } = parseCST("a = 1\nb = a + 2");
if (errors.length === 0) {
  const builder = new ASTBuilder();
  const rawAst = builder.buildProgram(tree);
  const ast = new ScopeResolver().resolve(rawAst);
  console.log(ast.body.length);
}

说明

此包不负责执行代码，执行请使用 @x-langjs/interpreter。

English

Package purpose

@x-langjs/ast converts CST to AST and provides scope resolving plus AST visiting helpers.

Install

npm install @x-langjs/ast

Main exports

• ASTBuilder
• ScopeResolver
• visitNode
• ASTVisitor type

Example

import { parse as parseCST } from "@x-langjs/parser";
import { ASTBuilder, ScopeResolver } from "@x-langjs/ast";