forked from luna/jorts
61 lines
935 B
Plaintext
61 lines
935 B
Plaintext
import io
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struct A {
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int val1,
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int val2
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}
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// self is injected and represents the struct A
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// from the functions' definition
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fn A:sum_fields() -> int {
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self.val1 + self.val2
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}
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// type of sum_fields is:
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// Func ([A] -> int)
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// the mut keyword signals that self is a "reference"
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// to self, instead of a copy
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// however, what actually happens is that an instance of
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// A is returned from the function implicitly
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fn mut A:incr_both_fields() {
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self.val1++
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self.val2++
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}
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// and so, the type becomes:
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// Func ([A] -> A)
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fn mut A:incr_and_sum () {
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self.val1++
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self.val2++
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self.val1 + self.val2
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}
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// type is:
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// Func ([A] -> (A, int))
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fn main () {
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a := A{0, 0}
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a.incr_both_fields()
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/*
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translates to:
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a := incr_both_fields(a)
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*/
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sum := a.sum_fields()
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io.puts(sum)
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val = a.incr_and_sum()
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/*
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translates to:
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a, val := incr_and_sum(a)
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*/
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}
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