32 lines
1.0 KiB
Plaintext
32 lines
1.0 KiB
Plaintext
struct Foo;
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impl Foo {
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// implementation of an instance method for struct Foo
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// returning the answer to life
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fn get_the_answer_to_life(&self) -> i32 {
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42
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}
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// implementation of a static method for struct Foo
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// returning a new instance object
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fn new() -> Foo {
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println!("Hello, world!");
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Foo // returning the new Foo object
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}
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}
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fn main() {
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// create the instance object foo,
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// by calling the static method new of struct Foo
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let foo = Foo::new();
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// get the answer to life
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// by calling the instance method of object foo
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println!("The answer to life is {}.", foo.get_the_answer_to_life());
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// Note that in Rust, methods still work on references to the object.
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// Rust will automatically do the appropriate dereferencing to get the method to work:
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let lots_of_references = &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&foo;
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println!("The answer to life is still {}." lots_of_references.get_the_answer_to_life());
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}
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