java-parser

Demo

Example Command Line:

~$ npm i -g java-parser

~$ echo '
class HelloWorld {
  final int UNIVERSE = 42;
}
' > HelloWorld.java

~$ java-parser HelloWorld.java
{
  "node": "CompilationUnit",
  "types": [
    {
      "node": "TypeDeclaration",
      "name": {
        "identifier": "HelloWorld",
        "node": "SimpleName"
      },
      "superInterfaceTypes": [],
      "superclassType": null,
      "bodyDeclarations": [
        {
          "node": "FieldDeclaration",
          "fragments": [
            {
              "node": "VariableDeclarationFragment",
              "name": {
                "identifier": "UNIVERSE",
                "node": "SimpleName"
              },
              "extraDimensions": 0,
              "initializer": {
                "node": "NumberLiteral",
                "token": "42"
              }
            }
          ],
          "type": {
            "node": "PrimitiveType",
            "primitiveTypeCode": "int"
          },
          "modifiers": [
            {
              "node": "Modifier",
              "keyword": "final"
            }
          ]
        }
      ],
      "typeParameters": [],
      "interface": false,
      "modifiers": []
    }
  ],
  "package": null,
  "imports": []
}

Example Program:

~$ npm i java-parser

~$ echo '
    var japa = require("java-parser");
    console.log(japa.parse("package hello;"));
  ' | node
  { node: 'CompilationUnit',
    types: [],
    package: 
     { node: 'PackageDeclaration',
       name: { identifier: 'hello', node: 'SimpleName' },
       annotations: [] },
    imports: [] }

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