/**
* @see
* railo.transformer.cfml.evaluator.EvaluatorSupport#evaluate(railo.transformer.bytecode.statement.tag.Tag,
* railo.transformer.library.tag.TagLibTag, railo.transformer.library.function.FunctionLib[])
*/
public void evaluate(Tag tag, TagLibTag tagLibTag, FunctionLib[] flibs)
throws EvaluatorException {
String id = "sprite_" + IDGenerator.intId();
try {
Page page = ASMUtil.getAncestorPage(tag);
String key = Md5.getDigestAsString(Thread.currentThread().getId() + ":" + page.getSource());
Expression src = tag.getAttribute("src").getValue();
// get data from previous sprites
Previous previous = sprites.get(key);
if (previous != null) {
previous.tag.removeAttribute("_ids");
previous.tag.removeAttribute("_srcs");
previous.tag = tag;
} else {
sprites.put(key, previous = new Previous(tag));
}
previous.ids.add(id);
if (previous.src == null) previous.src = src;
else {
previous.src = OpString.toExprString(previous.src, DELIMITER);
previous.src = OpString.toExprString(previous.src, src);
}
tag.addAttribute(new Attribute(false, "_id", LitString.toExprString(id), "string"));
tag.addAttribute(
new Attribute(
false,
"_ids",
LitString.toExprString(
railo.runtime.type.util.ListUtil.listToList(previous.ids, ",")),
"string"));
tag.addAttribute(new Attribute(false, "_srcs", previous.src, "string"));
} catch (Throwable e) { // TODO handle Excpetion much more precise
throw new PageRuntimeException(Caster.toPageException(e));
}
}
