8022797: Clarify spliterator characteristics for collections containing no elements
Reviewed-by: alanb, mduigou
/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*/
/**
* clone_ir : Check that functionNode.clone copies all nodes and that they
* are not the same references
*
* @test
* @run
*/
var js1 = "var tuple = { func : function f(x) { if (x) { print('true'); { print('block_under-true'); } } else { print('false'); } } }";
var Parser = Java.type("jdk.nashorn.internal.parser.Parser");
var ASTWriter = Java.type("jdk.nashorn.internal.ir.debug.ASTWriter");
var Context = Java.type("jdk.nashorn.internal.runtime.Context");
var ScriptEnvironment = Java.type("jdk.nashorn.internal.runtime.ScriptEnvironment");
var Source = Java.type("jdk.nashorn.internal.runtime.Source");
var FunctionNode = Java.type("jdk.nashorn.internal.ir.FunctionNode");
var ThrowErrorManager = Java.type("jdk.nashorn.internal.runtime.Context$ThrowErrorManager");
var System = Java.type("java.lang.System");
var toArrayMethod = ASTWriter.class.getMethod("toArray");
var parseMethod = Parser.class.getMethod("parse");
function toString(obj) {
var output = "{ ";
for (property in obj) {
output += property + ': ' + obj[property]+'; ';
}
return output + '}'
}
function flatten(func) {
var writer = new ASTWriter(func);
var funcList = toArrayMethod.invoke(writer);
var res = [];
for each (x in funcList) {
res.push({ name: x.getClass().getName(), id: System.identityHashCode(x) });
}
return res;
}
function check(contents) {
return check_src(new Source("<no name>", contents));
}
function check_src(src) {
var parser = new Parser(Context.getContext().getEnv(), src, new ThrowErrorManager());
var func = parseMethod.invoke(parser);
print(func);
var func2 = func.clone();
var f1 = flatten(func);
var f2 = flatten(func2);
print(f1.map(toString));
print(f2.map(toString));
if (f1.length != f2.length) {
print("length difference between original and clone " + f1.length + " != " + f2.length);
return false;
}
for (var i = 0; i < f1.length; i++) {
if (f1[i].name !== f2[i].name) {
print("name conflict at " + i + " " + f1[i].name + " != " + f2[i].name);
return false;
} else if (f1[i].id === f2[i].id) {
print("id problem at " + i + " " + toString(f1[i]) + " was not deep copied to " + toString(f2[i]) + " became " + f1[i].id + " != " + f2[i].id);
return false;
}
}
return true;
}
print(check(js1));