44 lines
752 B
Zig
44 lines
752 B
Zig
const assert = @import("std").debug.assert;
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const module = this;
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fn Point(comptime T: type) type {
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return struct {
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const Self = this;
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x: T,
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y: T,
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fn addOne(self: &Self) void {
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self.x += 1;
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self.y += 1;
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}
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};
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}
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fn add(x: i32, y: i32) i32 {
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return x + y;
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}
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fn factorial(x: i32) i32 {
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const selfFn = this;
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return if (x == 0) 1 else x * selfFn(x - 1);
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}
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test "this refer to module call private fn" {
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assert(module.add(1, 2) == 3);
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}
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test "this refer to container" {
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var pt = Point(i32) {
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.x = 12,
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.y = 34,
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};
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pt.addOne();
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assert(pt.x == 13);
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assert(pt.y == 35);
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}
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test "this refer to fn" {
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assert(factorial(5) == 120);
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}
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