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rustc: Use coherence for operator overloading.

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The only use of the old-style impls is now placement new.
This commit is contained in:
Patrick Walton 2012-07-27 19:32:42 -07:00
parent e6d2e49852
commit 93c2f5e0e4
23 changed files with 348 additions and 295 deletions
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45
src/test/bench/shootout-mandelbrot.rs
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@ -16,24 +16,31 @@ use std;
import io::writer_util;
import std::map::hashmap;
type cmplx = {re: f64, im: f64};
struct cmplx {
re: f64;
im: f64;
}
impl cmplx : ops::mul<cmplx,cmplx> {
pure fn mul(x: cmplx) -> cmplx {
cmplx {
re: self.re*x.re - self.im*x.im,
im: self.re*x.im + self.im*x.re
}
}
}
impl cmplx : ops::add<cmplx,cmplx> {
pure fn add(x: cmplx) -> cmplx {
cmplx {
re: self.re + x.re,
im: self.im + x.im
}
}
}
type line = {i: uint, b: ~[u8]};
trait times_and_plus {
fn *(x: cmplx) -> cmplx;
fn +(x: cmplx) -> cmplx;
}
impl arith of times_and_plus for cmplx {
fn *(x: cmplx) -> cmplx {
{re: self.re*x.re - self.im*x.im, im: self.re*x.im + self.im*x.re}
}
fn +(x: cmplx) -> cmplx {
{re: self.re + x.re, im: self.im + x.im}
}
}
pure fn cabs(x: cmplx) -> f64
{
x.re*x.re + x.im*x.im
@ -41,7 +48,7 @@ pure fn cabs(x: cmplx) -> f64
fn mb(x: cmplx) -> bool
{
let mut z = {re: 0f64, im: 0f64};
let mut z = cmplx {re: 0f64, im: 0f64};
let mut i = 0;
let mut in = true;
while i < 50 {
@ -59,7 +66,7 @@ fn fillbyte(x: cmplx, incr: f64) -> u8 {
let mut rv = 0_u8;
let mut i = 0_u8;
while i < 8_u8 {
let z = {re: x.re + (i as f64)*incr, im: x.im};
let z = cmplx {re: x.re + (i as f64)*incr, im: x.im};
if mb(z) {
rv += 1_u8 << (7_u8 - i);
}
@ -75,7 +82,7 @@ fn chanmb(i: uint, size: uint, ch: comm::chan<line>) -> ()
let y = incr*(i as f64) - 1f64;
let xincr = 8f64*incr;
for uint::range(0_u, size/8_u) |j| {
let x = {re: xincr*(j as f64) - 1.5f64, im: y};
let x = cmplx {re: xincr*(j as f64) - 1.5f64, im: y};
vec::push(crv, fillbyte(x, incr));
};
comm::send(ch, {i:i, b:crv});