tree-sitter-javascript

import tree_sitter from tree_sitter_javascript import language # 1. Get the JavaScript language object JS_LANGUAGE = language() # 2. Create a parser and set the language parser = tree_sitter.Parser() parser.set_language(JS_LANGUAGE) # 3. Parse some JavaScript code (must be bytes) code = b""" function greet(name) { console.log("Hello, " + name + "!"); } greet("World"); """ tree = parser.parse(code) # 4. Access the root node and explore the tree root_node = tree.root_node print(f"Root node type: {root_node.type}") print(f"Root node content (first 50 chars): {root_node.text.decode('utf8')[:50]}...") # Example: Find the 'function_declaration' node function_node = None for child in root_node.children: if child.type == 'function_declaration': function_node = child break if function_node: function_name_node = function_node.child_by_field_name('name') if function_name_node: print(f"Found function name: {function_name_node.text.decode('utf8')}")