import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.ListIterator;

/**
 * Self contained utility functions for dealing with AST.
 */
public abstract class AstUtils {

    private AstUtils() {
    }

    public static boolean isMethodOnThis(MethodCallExpression call, String name) {
        boolean hasName = call.getMethod() instanceof ConstantExpression && call.getMethod().getText().equals(name);

        AstUtils.filterAndTransformStatements(source, transformer);

        // Filter imported classes which are not available yet

        Iterator<ImportNode> iter = source.getAST().getImports().iterator();
        while (iter.hasNext()) {
            ImportNode importedClass = iter.next();
            if (!AstUtils.isVisible(source, importedClass.getClassName())) {
                try {

    @Override
    protected int getPhase() {
        return Phases.CANONICALIZATION;
    }

    @Override
    public void call(SourceUnit source) throws CompilationFailedException {
        AstUtils.visitScriptCode(source, new TaskDefinitionTransformer());
    }

    private static class TaskDefinitionTransformer extends CodeVisitorSupport {
        @Override

        for (Statement statement : statements) {
            ScriptBlock scriptBlock = AstUtils.detectScriptBlock(statement, SCRIPT_BLOCK_NAMES);
            if (scriptBlock == null) {
                // Look for model(«») (i.e. call to model with anything other than non literal closure)
                MethodCallExpression methodCall = AstUtils.extractBareMethodCall(statement);
                if (methodCall == null) {

        ClosureExpression closureExpression = AstUtils.getSingleClosureArg(call);
        if (closureExpression != null) {
            // path { ... }
            rewriteAction(call, extractModelPathFromMethodTarget(call), closureExpression, RuleVisitor.displayName(call));
            return;
        }

        Pair<ClassExpression, ClosureExpression> args = AstUtils.getClassAndClosureArgs(call);
        if (args != null) {

    public void call(SourceUnit source) throws CompilationFailedException {
        ClassNode scriptClass = AstUtils.getScriptClass(source);
        if (scriptClass == null) {
            return;
        }
        for (MethodNode methodNode : scriptClass.getMethods()) {
            if (methodNode.getName().equals("main")) {
                AstUtils.removeMethod(scriptClass, methodNode);
                break;
            }
        }
    }

        List<Statement> statements = statementBlock.getStatements();
        for (Statement statement : statements) {
            if (!AstUtils.mayHaveAnEffect(statement)) {
                continue;
            }
            ScriptBlock scriptBlock = AstUtils.detectScriptBlock(statement);
            if (scriptBlock != null && scriptBlock.getName().equals(ModelBlockTransformer.MODEL)) {
                continue;

import static org.gradle.groovy.scripts.internal.AstUtils.hasSingleConstantArgOfType;
import static org.gradle.groovy.scripts.internal.AstUtils.hasSingleConstantStringArg;
import static org.gradle.groovy.scripts.internal.AstUtils.hasSinglePropertyExpressionArgument;
import static org.gradle.groovy.scripts.internal.AstUtils.isOfType;

public class PluginUseScriptBlockMetadataCompiler {

        this.filter = new Spec<Statement>() {
            @Override
            public boolean isSatisfiedBy(Statement statement) {
                return AstUtils.detectScriptBlock(statement, blocksToIgnore) != null;
            }
        };
        this.scriptSource = scriptSource;
    }

    @Override
    public void register(CompilationUnit compilationUnit) {

    }

    @Override
    public void call(final SourceUnit source) throws CompilationFailedException {
        // currently we only look in script code; could extend this to build script classes
        AstUtils.visitScriptCode(source, new ClassCodeVisitorSupport() {
            @Override
            protected SourceUnit getSourceUnit() {
                return source;
            }

            @Override