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copied!<p>Similar to <a href="https://stackoverflow.com/questions/12755640/variabledeclarationfragment-node-resolvebindind-returns-null-in-eclipse-jdt-as#12791105">java - VariableDeclarationFragment node resolveBindind() returns null in eclipse/jdt/ast - Stack Overflow</a> or <a href="https://stackoverflow.com/questions/2017945/bindings-not-resolving-with-ast-processing-in-eclipse#5803778">java - bindings not resolving with AST processing in eclipse - Stack Overflow</a></p> <p>Here is a simple example as RCP headless app.(with Java project "JavaProject" which contains classes Query, QueryResult, SearchResult as dummy)</p> <pre><code>package test; import org.eclipse.jdt.core.dom.AST; import org.eclipse.jdt.core.dom.ASTParser; import org.eclipse.jdt.core.dom.ASTVisitor; import org.eclipse.jdt.core.dom.Block; import org.eclipse.jdt.core.dom.CompilationUnit; import org.eclipse.jdt.core.dom.Expression; import org.eclipse.jdt.core.dom.IMethodBinding; import org.eclipse.jdt.core.dom.ITypeBinding; import org.eclipse.jdt.core.dom.MethodDeclaration; import org.eclipse.jdt.core.dom.MethodInvocation; public class Test { String str = "package javaproject;" // package for all classes + "class Dummy {" // + " void testSearch(String queryStr, String dateStr, SearchResources twitter1) {" // + " Query query = new Query(queryStr).until(dateStr);" // + " QueryResult queryResult = twitter1.search(query);" // + " }" // + "}"; public void testrun() { ASTParser parser = ASTParser.newParser(AST.JLS4); parser.setSource(str.toCharArray()); parser.setKind(ASTParser.K_COMPILATION_UNIT); parser.setResolveBindings(true); parser.setEnvironment( // apply classpath new String[] { "C:\\eclipse\\workspace\\JavaProject\\bin" }, // null, null, true); parser.setUnitName("any_name"); final CompilationUnit cu = (CompilationUnit) parser.createAST(null); cu.accept(new ASTVisitor() { public boolean visit(MethodDeclaration node) { if (node.getName().getIdentifier().equals("testSearch")) { Block block = node.getBody(); block.accept(new ASTVisitor() { public boolean visit(MethodInvocation node) { System.out.println("Name: " + node.getName()); Expression expression = node.getExpression(); if (expression != null) { System.out.println("Expr: " + expression.toString()); ITypeBinding typeBinding = expression.resolveTypeBinding(); if (typeBinding != null) { System.out.println("Type: " + typeBinding.getName()); } } IMethodBinding binding = node.resolveMethodBinding(); if (binding != null) { ITypeBinding type = binding.getDeclaringClass(); if (type != null) { System.out.println("Decl: " + type.getName()); } } return true; } }); } return true; } }); } } </code></pre>

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