Language: add when statement modelled after Odin and Nim#473
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chqrlie wants to merge 1 commit intoc2lang:masterfrom
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Language: add when statement modelled after Odin and Nim#473chqrlie wants to merge 1 commit intoc2lang:masterfrom
when statement modelled after Odin and Nim#473chqrlie wants to merge 1 commit intoc2lang:masterfrom
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* `when` has the same syntax as `if` but with these restrictions: * condition must be a compile time constant value * if true, only the *then* branch is analysed and generated * otherwise, only the *else* branch, if present, is analysed and generated * `when` blocks do not start a new scope * `when` cannot appear as the sole statement in `if`, `else`, `for` or `while`
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whenhas the same syntax asifbut with these restrictions:whenblocks do not start a new scopewhencannot appear as the sole statement inif,else,fororwhile