org.jrubyparser.util
Class StaticAnalyzerHelper

java.lang.Object
  org.jrubyparser.util.StaticAnalyzerHelper

public class StaticAnalyzerHelper
extends Object

Separate logic from AST for calculating static relationships in Ruby.

Constructor Summary

StaticAnalyzerHelper()

Method Summary

static List<NodePair>	calculateStaticAssignments(MultipleAsgnNode masgn, Node values)
static Node[]	flattenRHSValues(Node rhs) There are four possible conditions: 1.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StaticAnalyzerHelper

public StaticAnalyzerHelper()

Method Detail

calculateStaticAssignments

public static List<NodePair> calculateStaticAssignments(MultipleAsgnNode masgn,
                                                        Node values)

flattenRHSValues

public static Node[] flattenRHSValues(Node rhs)

There are four possible conditions: 1. rhs: [b, c] - ListNode 2. rhs: [*b, c] - ArgsPush(b, c) 3. rhs: [c, *b] - ArgsCat(c, b) 4. rhs: [c, *b, d] - ArgsPush(ArgsCat(c, b), d) For cases 2 and 3 we can additionally return the rhs splat as a single value if the argscat or argspush will end up completely being assigned into a rest of the lhs. These four cases can have any number of pre or post nodes (these examples only use one for simplicity). This method really just flattens the tree into pre, rest, and post. Now in actuality these three values will not neccesarily fit into the lhs in the same fashion.