René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Else if conversion fails","articleBody":"When converting an existing code base I found that else-if apparently is not supported. Here's an example:\r\n\r\n```java\r\n   public static void main(String[] args) {\r\n        int a = 0;\r\n        if (a == 1) {\r\n                System.out.println(\"a=1\");\r\n        } else if (a == 2) {\r\n                System.out.println(\"a=2\");\r\n        }\r\n    }\r\n```\r\nwhich fails with the output\r\n```\r\n$ j2py HelloWorld.java\r\nTraceback (most recent call last):\r\n  File \"/usr/local/bin/j2py\", line 258, in \u003cmodule\u003e\r\n    sys.exit(runMain(configScript(sys.argv[1:])))\r\n  File \"/usr/local/bin/j2py\", line 57, in runMain\r\n    return runOneOrMany(options)\r\n  File \"/usr/local/bin/j2py\", line 82, in runOneOrMany\r\n    return runTransform(options)\r\n  File \"/usr/local/bin/j2py\", line 134, in runTransform\r\n    module.walk(tree)\r\n  File \"/usr/local/lib/python2.7/dist-packages/java2python/compiler/visitor.py\", line 86, in walk\r\n    visitor.walk(child, memo)\r\n  File \"/usr/local/lib/python2.7/dist-packages/java2python/compiler/visitor.py\", line 86, in walk\r\n    visitor.walk(child, memo)\r\n  File \"/usr/local/lib/python2.7/dist-packages/java2python/compiler/visitor.py\", line 86, in walk\r\n    visitor.walk(child, memo)\r\n  File \"/usr/local/lib/python2.7/dist-packages/java2python/compiler/visitor.py\", line 86, in walk\r\n    visitor.walk(child, memo)\r\n  File \"/usr/local/lib/python2.7/dist-packages/java2python/compiler/visitor.py\", line 86, in walk\r\n    visitor.walk(child, memo)\r\n  File \"/usr/local/lib/python2.7/dist-packages/java2python/compiler/visitor.py\", line 83, in walk\r\n    visitor = self.accept(tree, memo)\r\n  File \"/usr/local/lib/python2.7/dist-packages/java2python/compiler/visitor.py\", line 43, in accept\r\n    return call(node, memo)\r\n  File \"/usr/local/lib/python2.7/dist-packages/java2python/compiler/visitor.py\", line 474, in acceptIf\r\n    nextNode = nextNode.children[2]\r\n```\r\n\r\nWith the obvious workaround of separating the if statements, the conversion is successful:\r\n```java\r\n    public static void main(String[] args) {\r\n        int a = 0;\r\n        if (a == 1) {\r\n                System.out.println(\"a=1\");\r\n        }\r\n        if (a == 2) {\r\n                System.out.println(\"a=2\");\r\n        }\r\n    }\r\n```\r\nconverts to\r\n```python\r\n\r\n#!/usr/bin/env python\r\n\"\"\" generated source for module HelloWorld \"\"\"\r\nclass HelloWorld(object):\r\n    \"\"\" generated source for class HelloWorld \"\"\"\r\n    @classmethod\r\n    def main(cls, args):\r\n        \"\"\" generated source for method main \"\"\"\r\n        a = 0\r\n        if a == 1:\r\n            print \"a=1\"\r\n        if a == 2:\r\n            print \"a=2\"\r\n\r\n\r\nif __name__ == '__main__':\r\n    import sys\r\n    HelloWorld.main(sys.argv)\r\n```\r\n","author":{"url":"https://github.com/ferchault","@type":"Person","name":"ferchault"},"datePublished":"2020-12-04T15:59:49.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/70/java2python/issues/70"}