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add initializer code blocks #69

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  • add code blocks to [try_][pin_]init! macros

@BennoLossin
add code blocks to [try_][pin_]init! macros
e7aa936 
Allow writing `_: { /* any number of statements */ }` in initializers to
run arbitrary code during initialization. It also allows declaring
values that can be used later in the initializer:

    init!(MyStruct {
        _: {
            let val = if check_something() {
                42
            } else {
                0
            };
        },
        foo: Foo::new(val),
    })

Signed-off-by: Benno Lossin <lossin@kernel.org>
@BennoLossin
tests: add underscore
7e24cfa 
Signed-off-by: Benno Lossin <lossin@kernel.org>
@BennoLossin
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@Darksonn in your proposal you said that only super let bindings would persist between different {} scopes in intializers. At the moment, this implements that behavior for normal let bindings. Any thoughts on that?

@BennoLossin BennoLossin changed the title Dev/underscore add initializer code blocks Aug 11, 2025
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