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Integrate Buffer<T> experiment into Pointer<T>; Remove CArray

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This commit is contained in:
dcodeIO
2018-09-15 02:54:30 +02:00
parent 029dde7c3c
commit 3f93808914
7 changed files with 573 additions and 712 deletions
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36
tests/compiler/std/pointer.ts
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@ -1,6 +1,6 @@
// A pointer arithmetic experiment
export class Pointer<T> {
class Pointer<T> {
// FIXME: does not inline, always yields a trampoline
@inline constructor(offset: usize = 0) {
@ -12,7 +12,11 @@ export class Pointer<T> {
}
@inline get value(): T {
return changetype<T>(changetype<usize>(this));
if (isReference<T>()) {
return changetype<T>(changetype<usize>(this));
} else {
return load<T>(changetype<usize>(this));
}
}
// FIXME: in general, inlining any of the following always yields a block. one could argue that
@ -39,6 +43,16 @@ export class Pointer<T> {
const size = isReference<T>() ? offsetof<T>() : sizeof<T>();
return changetype<Pointer<T>>(changetype<usize>(this) - size);
}
@inline @operator("[]") get(index: i32): T {
const size = isReference<T>() ? offsetof<T>() : sizeof<T>();
return load<T>(changetype<usize>(this) + (<usize>index * size));
}
@inline @operator("[]=") set(index: i32, value: T): void {
const size = isReference<T>() ? offsetof<T>() : sizeof<T>();
store<T>(changetype<usize>(this) + (<usize>index * size), value);
}
}
@unmanaged
@ -74,3 +88,21 @@ assert(two.offset == 24);
assert(two.offset == 8);
assert(two.value.key == 1);
assert(two.value.val == 2);
var buf = new Pointer<f32>(0);
buf[0] = 1.1;
buf[1] = 1.2;
assert(buf[0] == 1.1);
assert(buf[1] == 1.2);
assert(buf.get(0) == 1.1);
assert(buf.get(1) == 1.2);
assert(load<f32>(0) == 1.1);
assert(load<f32>(4) == 1.2);
buf.set(2, 1.3);
assert(buf[2] == 1.3);
assert(buf.get(2) == 1.3);
assert(load<f32>(8) == 1.3);