bindings not resolving with AST processing in eclipse
eclipse, java, parsing
Solution
When you use: parser.setSource(source); What is the type of param "source"?
Binding information is obtained from the Java model. This means that the compilation unit must be located relative to the Java model. This happens automatically when the source code comes from either setSource(ICompilationUnit) or setSource(IClassFile). When source is supplied by setSource(char[]), the location must be extablished explicitly by calling setProject(IJavaProject) and setUnitName(String).
This is from http://help.eclipse.org/galileo/index.jsp?topic=/org.eclipse.jdt.doc.isv/reference/api/org/eclipse/jdt/core/dom/ASTParser.html I think maybe you just use setSource(char[]) without calling setProject(IJavaProject) and setUnitName(String)
Problem
I'm using the eclipse JDT AST parser to process some Java code and am trying to extract the type bindings for fields and method declarations. The logic for doing that is inside my Visitor class (see below). Unfortunately, I'm not having any luck and none of the bindings are resolving (they are consistently null). The interesting thing is that the bindings do work on the same code with the eclipse ASTView plugin. What am I doing wrong? Here are some relevant code snippets which will hopefully help someone figure out what is going on! ``` ASTParser parser = ASTParser.newParser(AST.JLS3); parser.setKind(ASTParser.K_COMPILATION_UNIT); parser.setSource(source); parser.setResolveBindings(true); CompilationUnit unit = (CompilationUnit) parser.createAST(null); GenericVisitor visitor = new GenericVisitor(outDir + "//" + file.getName() + ".xml"); visitor.process(unit); public class GenericVisitor extends ASTVisitor { public void endVisit(FieldDeclaration node) { String bindingInfo = ""; ITypeBinding binding = node.getType().resolveBinding(); if(binding == null) { System.out.println("field declaration binding = null"); } else { bindingInfo = binding.getQualifiedName(); } endVisitNode(node, bindingInfo); } public void endVisit(MethodInvocation node) { String bindingInfo = ""; IMethodBinding binding = node.resolveMethodBinding(); if(binding == null) { System.out.println("method binding = null"); } else { bindingInfo = binding.toString(); } endVisitNode(node, bindingInfo); } } ```