dimgigov
92c5cd59f5
- Create stdlib/Std/Io.bux with extern func declarations
- Rename C shim functions to short names (PrintLine, PrintInt, etc.)
- Update all 9 examples to use import Std::Io::{PrintLine, PrintInt};
- Remove manual extern func Std_Io_* declarations from examples
33 lines
626 B
Plaintext
33 lines
626 B
Plaintext
// Pattern Matching - Match expressions with algebraic enums
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import Std::Io::{PrintLine, PrintInt};
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enum Option {
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Some(int),
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None
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}
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func GetValue(opt: Option) -> int {
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match opt {
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Option::Some(value) => opt.data.Some_0,
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Option::None => 0
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}
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}
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func Main() -> int {
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let opt1: Option = Option { tag: Option_Some };
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opt1.data.Some_0 = 42;
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let opt2: Option = Option { tag: Option_None };
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PrintLine("opt1 value: ");
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PrintInt(GetValue(opt1));
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PrintLine("");
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PrintLine("opt2 value: ");
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PrintInt(GetValue(opt2));
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PrintLine("");
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return 0;
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}
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