Method getClassNode

src/main/java/groovy/lang/MetaClassImpl.java:3232–3273

Obtains a reference to the original AST for the MetaClass if it is available at runtime @return The original AST or null if it cannot be returned

()

     * @return The original AST or null if it cannot be returned
     */
    @Override
    public ClassNode getClassNode() {
        if (classNode == null && isGroovyObject()) {
            // let's try load it from the classpath
            String groovyFile = theClass.getName();
            int idx = groovyFile.indexOf('$');
            if (idx > 0) {
                groovyFile = groovyFile.substring(0, idx);
            }
            groovyFile = groovyFile.replace('.', '/') + ".groovy";

            //System.out.println("Attempting to load: " + groovyFile);
            URL url = theClass.getClassLoader().getResource(groovyFile);
            if (url == null) {
                url = Thread.currentThread().getContextClassLoader().getResource(groovyFile);
            }
            if (url != null) {
                try {

                    /*
                     * todo there is no CompileUnit in scope so class name
                     * checking won't work but that mostly affects the bytecode
                     * generation rather than viewing the AST
                     */
                    CompilationUnit.ClassgenCallback search = (writer, node) -> {
                        if (node.getName().equals(theClass.getName())) {
                            MetaClassImpl.this.classNode = node;
                        }
                    };

                    CompilationUnit unit = new CompilationUnit();
                    unit.setClassgenCallback(search);
                    unit.addSource(url);
                    unit.compile(Phases.CLASS_GENERATION);
                } catch (Exception e) {
                    throw new GroovyRuntimeException("Exception thrown parsing: " + groovyFile + ". Reason: " + e, e);
                }
            }

        }
        return classNode;
    }

    /**
     * Returns a string representation of this metaclass