> > Why would a programmer do that? Will the built-ins ([[DefineOwnProperty]], > [[Get]], etc.) do case-analysis to distinguish string and names? If they > don't, I don't really see why the programmer would. In most cases, one will > just forward to Reflect.trap(stringOrName, ...). >
This is the angle I've been looking at it from. The expectation is that the default Reflect handlers will almost always be used to execute actions for proxies. Even if you want to modify the target or parameters that were given you still use Reflect to execute the ultimate action. The only times you don't use Reflect is when you are preventing the action or hosting some virtual object API. Given that fact, most of the time you don't even need to know what the parameters are at all.
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