import org.codehaus.groovy.ast.ClassCodeExpressionTransformer; //导入依赖的package包/类
private static ClassCodeExpressionTransformer makeMapTypedArgsTransformer() {
    return new ClassCodeExpressionTransformer() {
        @Override
        public Expression transform(Expression exp) {
            if (exp instanceof ClosureExpression) {
                ClosureExpression ce = (ClosureExpression) exp;
                ce.getCode().visit(this);
            } else if (exp instanceof VariableExpression) {
                VariableExpression ve = (VariableExpression) exp;
                if (ve.getName().equals("args") && ve.getAccessedVariable() instanceof DynamicVariable) {
                    VariableExpression newVe = new VariableExpression(new Parameter(MAP_TYPE, "args"));
                    newVe.setSourcePosition(ve);
                    return newVe;
                }
            }
            return exp.transformExpression(this);
        }

        @Override
        protected SourceUnit getSourceUnit() {
            return null;
        }
    };
}
 

import org.codehaus.groovy.ast.ClassCodeExpressionTransformer; //导入依赖的package包/类
protected TreeContext popContext() {
    final TreeContext treeContext = treeContextStack.pop();
    List<TreeContextAction> actions = treeContext.getOnPopHandlers();
    for (TreeContextAction contextAction : actions) {
        contextAction.call(treeContext);
    }
    lastContext = treeContext;
    ASTNode parentNode = treeContext.parent!=null?treeContext.parent.node:null;
    if (treeContext.node instanceof Expression && parentNode !=null) {
        ClassCodeExpressionTransformer trn = new ClassCodeExpressionTransformer() {
            @Override
            protected SourceUnit getSourceUnit() {
                return null;
            }

            @Override
            public Expression transform(final Expression exp) {
                if (exp==treeContext.node) {
                    Expression replacement = treeContext.getReplacement();
                    if (replacement!=null) {
                        return replacement;
                    }
                }
                return super.transform(exp);
            }
        };
        // todo: reliable way to call the transformer
        //parentNode.visit(trn);
    }
    return treeContext;
}
 

import org.codehaus.groovy.ast.ClassCodeExpressionTransformer; //导入依赖的package包/类
@Override
public void call(SourceUnit source, GeneratorContext context, ClassNode classNode) throws CompilationFailedException {
    new ClassCodeExpressionTransformer() {
        @Override
        protected SourceUnit getSourceUnit() {
            return source;
        }

        public Expression transform(Expression exp) {
            // System.out.println(exp);
            if (exp instanceof ConstantExpression) {
                Object value = ConstantExpression.class.cast(exp).getValue();
                if (value != null) {
                    if (value instanceof BigDecimal) {
                        return new ConstantExpression(BigDecimal.class.cast(value).doubleValue());
                    }
                    if (value instanceof BigInteger) {
                        return new ConstantExpression(BigInteger.class.cast(value).longValue());
                    }
                    if (intToLong && value instanceof Integer) {
                        return new ConstantExpression(Integer.class.cast(value).longValue());
                    }
                }
            } else if (exp instanceof VariableExpression) {
                if (literals) {
                    VariableExpression v = VariableExpression.class.cast(exp);
                    if (!vars.contains(v.getText())) {
                        return new ConstantExpression(v.getText());
                    }
                }
            }
            return super.transform(exp);
        }
    }.visitClass(classNode);
}
 

import org.codehaus.groovy.ast.ClassCodeExpressionTransformer; //导入依赖的package包/类
@Override
protected GroovyCodeVisitor getTransformer(final ASTNode[] nodes, final SourceUnit sourceUnit) {
    ClassCodeExpressionTransformer transformer = new MacroClassTransformer(sourceUnit);

    return new MacroClassTransformingCodeVisitor(transformer, sourceUnit);
}
 

import org.codehaus.groovy.ast.ClassCodeExpressionTransformer; //导入依赖的package包/类
MacroClassTransformingCodeVisitor(ClassCodeExpressionTransformer transformer, SourceUnit sourceUnit) {
    super(transformer);
    this.sourceUnit = sourceUnit;
}