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Justus Klausecker
047df44d71
`switch` statements on types >128bits are now lowered to conditionals. This is necessary because Zig lowers integers with more than 128 bits to bigints, which are not 'native' integers and thus cannot be used as case values. 128-bit integers get special treatment because Zig will emit actual 128bit ints if they are supported by the target. They still *may* be lowered to bigints though, e.g. for 32-bit targets or MSVC. To solve this, this commit adds a bunch of switch macros to `zig.h` which will either resolve to an actual `switch` statement or to conditionals. The `if` statements this approach can generate are not as optimal as they could be but I think this is a good trade-off since the generated `switch` statements are still the same as the ones generated for smaller integers. Also the macros result in pretty readable code.