135 lines
3.3 KiB
Rust
135 lines
3.3 KiB
Rust
// NB: transitionary, de-mode-ing.
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#[forbid(deprecated_mode)];
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#[forbid(deprecated_pattern)];
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trait ToStr { fn to_str() -> ~str; }
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impl int: ToStr {
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fn to_str() -> ~str { int::str(self) }
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}
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impl i8: ToStr {
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fn to_str() -> ~str { i8::str(self) }
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}
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impl i16: ToStr {
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fn to_str() -> ~str { i16::str(self) }
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}
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impl i32: ToStr {
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fn to_str() -> ~str { i32::str(self) }
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}
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impl i64: ToStr {
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fn to_str() -> ~str { i64::str(self) }
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}
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impl uint: ToStr {
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fn to_str() -> ~str { uint::str(self) }
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}
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impl u8: ToStr {
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fn to_str() -> ~str { u8::str(self) }
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}
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impl u16: ToStr {
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fn to_str() -> ~str { u16::str(self) }
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}
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impl u32: ToStr {
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fn to_str() -> ~str { u32::str(self) }
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}
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impl u64: ToStr {
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fn to_str() -> ~str { u64::str(self) }
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}
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impl float: ToStr {
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fn to_str() -> ~str { float::to_str(self, 4u) }
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}
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impl f32: ToStr {
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fn to_str() -> ~str { float::to_str(self as float, 4u) }
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}
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impl f64: ToStr {
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fn to_str() -> ~str { float::to_str(self as float, 4u) }
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}
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impl bool: ToStr {
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fn to_str() -> ~str { bool::to_str(self) }
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}
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impl (): ToStr {
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fn to_str() -> ~str { ~"()" }
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}
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impl ~str: ToStr {
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fn to_str() -> ~str { copy self }
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}
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impl &str: ToStr {
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fn to_str() -> ~str { str::from_slice(self) }
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}
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impl @str: ToStr {
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fn to_str() -> ~str { str::from_slice(self) }
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}
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impl<A: ToStr Copy, B: ToStr Copy> (A, B): ToStr {
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fn to_str() -> ~str {
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let (a, b) = self;
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~"(" + a.to_str() + ~", " + b.to_str() + ~")"
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}
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}
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impl<A: ToStr Copy, B: ToStr Copy, C: ToStr Copy> (A, B, C): ToStr {
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fn to_str() -> ~str {
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let (a, b, c) = self;
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~"(" + a.to_str() + ~", " + b.to_str() + ~", " + c.to_str() + ~")"
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}
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}
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impl<A: ToStr> ~[A]: ToStr {
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fn to_str() -> ~str {
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let mut acc = ~"[", first = true;
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for vec::each(self) |elt| {
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if first { first = false; }
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else { str::push_str(acc, ~", "); }
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str::push_str(acc, elt.to_str());
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}
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str::push_char(acc, ']');
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move acc
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}
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}
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impl<A: ToStr> @A: ToStr {
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fn to_str() -> ~str { ~"@" + (*self).to_str() }
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}
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impl<A: ToStr> ~A: ToStr {
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fn to_str() -> ~str { ~"~" + (*self).to_str() }
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}
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#[cfg(test)]
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#[allow(non_implicitly_copyable_typarams)]
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mod tests {
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#[test]
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fn test_simple_types() {
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assert 1.to_str() == ~"1";
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assert (-1).to_str() == ~"-1";
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assert 200u.to_str() == ~"200";
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assert 2u8.to_str() == ~"2";
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assert true.to_str() == ~"true";
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assert false.to_str() == ~"false";
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assert ().to_str() == ~"()";
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assert (~"hi").to_str() == ~"hi";
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assert (@"hi").to_str() == ~"hi";
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}
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#[test]
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fn test_tuple_types() {
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assert (1, 2).to_str() == ~"(1, 2)";
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assert (~"a", ~"b", false).to_str() == ~"(a, b, false)";
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assert ((), ((), 100)).to_str() == ~"((), ((), 100))";
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}
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#[test]
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#[ignore]
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fn test_vectors() {
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let x: ~[int] = ~[];
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assert x.to_str() == ~"~[]";
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assert (~[1]).to_str() == ~"~[1]";
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assert (~[1, 2, 3]).to_str() == ~"~[1, 2, 3]";
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assert (~[~[], ~[1], ~[1, 1]]).to_str() ==
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~"~[~[], ~[1], ~[1, 1]]";
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}
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#[test]
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fn test_pointer_types() {
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assert (@1).to_str() == ~"@1";
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assert (~(true, false)).to_str() == ~"~(true, false)";
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}
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}
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