8037177: -Dnashorn.optimistic should be enabled by default, meaning that it has to be explicitly set to false to run with the jdk 8 style conservative types
Summary: This will be the new default setting, so the explicit flag should be removed, and instead reverse checked for explicitly DISABLED optimistic types. In the future, we might remove the flag altogether.
Reviewed-by: attila, hannesw
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/**
* Prints unique lines from a given file.
*/
if (arguments.length != 1) {
print("Usage: jjs uniq.js -- <file>");
java.lang.System.exit(1);
}
var imports = new JavaImporter(java.io);
var uniqueLines = {};
with (imports) {
var reader = new BufferedReader(new FileReader(arguments[0]));
while ((line = reader.readLine()) != null) {
// using a JS object as a map...
uniqueLines[line] = true;
}
}
// now print the collected lines
for (i in uniqueLines) {
print(i);
}