bigcode-astgen

bigcode-astgen

Tools to convert source code into an AST in JSON format.

Supported languages

The following languages are currently supported

• Python 2 and 3
• JavaScript
• Java

AST description

We use the format described in js150, without the trailing 0.

The formatted AST is an array of objects with the following properties:

• (Required) id: unique integer identifying current AST node.
• (Required) type: string containing type of current AST node.
• (Optional) value: string containing value (if any) of the current AST node.
• (Optional) children: array of integers denoting children (if any) of the current AST node.

For example, the following program

console.log("Hello World!");

gives the following AST.

[{"id":0, "type":"Program", "children": [1]},
 {"id":1, "type":"ExpressionStatement", "children": [2]},
 {"id":2, "type":"CallExpression", "children":[3,6]},
 {"id":3, "type":"MemberExpression", "children":[4,5]},
 {"id":4, "type":"Identifier", "value":"console"},
 {"id":5, "type":"Property", "value":"log"},
 {"id":6, "type":"LiteralString", "value":"Hello World!"}]