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Currently omj/TokenStream and omj/optimizer/Optimizer.java both contain
code to convert number value to a wrapper object of smallest size. The
attached patch moves this wrapping to Node constructor to avoid code
duplication and eliminate special treatment of exact integers in
Optimizer.java.
The constant folding code in omj/optimizer/Optimizer.java currently always
replaces x * 1, x - 0 by simply x which does not force the toNumber convertion,
which is visible, for example, via typeof. For example, when running at
optimization level 2, the following
function f() {
return "0" * 1;
}
print(typeof(f()));
prints "string" instead of expected "number".
The const_fold.patch fixes this via replacing x*1 by (+x) to force number convertion.
It assumes that the patch with number wrapping changes is in place.