genCrt ? new CRTable(tree, env.toplevel.endPositions)
: null,
syms,
types,
pool);//常量池是所有方法共用的
items = new Items(pool, code, syms, types);//每个方法都重新生成一个Items实例
if (code.debugCode)
System.err.println(meth + " for body " + tree);
// If method is not static, create a new local variable address
// for `this'.