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Optimize AliasAssign tuple building

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This commit is contained in:
Boris Carvajal 2022-07-26 06:12:36 -04:00 • committed by The Dlang Bot
parent cac3f6b299
commit 10d62fc382
8 changed files with 329 additions and 12 deletions
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105
compiler/test/compilable/aliasassign.d
View file

@ -3,18 +3,18 @@ template AliasSeq(T...) { alias AliasSeq = T; }
template Unqual(T)
{
static if (is(T U == const U))
alias Unqual = U;
alias Unqual = U;
else static if (is(T U == immutable U))
alias Unqual = U;
alias Unqual = U;
else
alias Unqual = T;
alias Unqual = T;
}
template staticMap(alias F, T...)
{
alias A = AliasSeq!();
static foreach (t; T)
A = AliasSeq!(A, F!t); // what's tested
A = AliasSeq!(A, F!t); // what's tested
alias staticMap = A;
}
@ -28,7 +28,7 @@ template reverse(T...)
{
alias A = AliasSeq!();
static foreach (t; T)
A = AliasSeq!(t, A); // what's tested
A = AliasSeq!(t, A); // what's tested
alias reverse = A;
}
@ -38,3 +38,98 @@ alias TK2 = reverse!(int, const uint, X2);
static assert(TK2[0] == 3);
static assert(is(TK2[1] == const(uint)));
static assert(is(TK2[2] == int));
/**************************************************/
template Tp(Args...)
{
alias Tp = AliasSeq!(int, 1, "asd", Args);
static foreach (arg; Args)
{
Tp = AliasSeq!(4, Tp, "zxc", arg, Tp, 5, 4, int, Tp[0..2]);
}
}
void fun(){}
alias a1 = Tp!(char[], fun, x => x);
static assert(
__traits(isSame, a1, AliasSeq!(4, 4, 4, int, 1, "asd", char[], fun,
x => x, "zxc", char[], int, 1, "asd", char[], fun, x => x,
5, 4, int, int, 1, "zxc", fun, 4, int, 1, "asd", char[],
fun, x => x, "zxc", char[], int, 1, "asd", char[], fun,
x => x, 5, 4, int, int, 1, 5, 4, int, 4, int, "zxc", x => x,
4, 4, int, 1, "asd", char[], fun, x => x, "zxc", char[],
int, 1, "asd", char[], fun, x => x, 5, 4, int, int, 1,
"zxc", fun, 4, int, 1, "asd", char[], fun, x => x, "zxc",
char[], int, 1, "asd", char[], fun, x => x, 5, 4, int, int,
1, 5, 4, int, 4, int, 5, 4, int, 4, 4)));
template Tp2(Args...)
{
alias Tp2 = () => 1;
static foreach (i; 0..Args.length)
Tp2 = AliasSeq!(Tp2, Args[i]);
}
const x = 8;
static assert(
__traits(isSame, Tp2!(2, float, x), AliasSeq!(() => 1, 2, float, x)));
enum F(int i) = i * i;
template staticMap2(alias fun, args...)
{
alias staticMap2 = AliasSeq!();
static foreach (i; 0 .. args.length)
staticMap2 = AliasSeq!(fun!(args[i]), staticMap2, fun!(args[i]));
}
enum a2 = staticMap2!(F, 0, 1, 2, 3, 4);
struct Cmp(T...){}
// isSame sucks
static assert(is(Cmp!a2 == Cmp!(16, 9, 4, 1, 0, 0, 1, 4, 9, 16)));
template Tp3()
{
alias aa1 = int;
static foreach (t; AliasSeq!(float, char[]))
aa1 = AliasSeq!(aa1, t);
static assert(is(aa1 == AliasSeq!(int, float, char[])));
alias aa2 = AliasSeq!int;
static foreach (t; AliasSeq!(float, char[]))
aa2 = AliasSeq!(aa2, t);
static assert(is(aa2 == AliasSeq!(int, float, char[])));
alias aa3 = AliasSeq!int;
aa3 = AliasSeq!(float, char);
static assert(is(aa3 == AliasSeq!(float, char)));
}
alias a3 = Tp3!();
template Tp4() // Uses slow path because overload
{
alias AliasSeq(T...) = T;
alias AliasSeq(alias f, T...) = T;
alias aa4 = int;
aa4 = AliasSeq!(aa4, float);
static assert(is(aa4 == AliasSeq!(int, float)));
}
alias a4 = Tp4!();
template Tp5() // same tp overloaded, still uses fast path
{
alias AliasSeq2(T...) = T;
alias AliasSeq = AliasSeq2;
alias AliasSeq = AliasSeq2;
alias aa5 = int;
aa5 = AliasSeq!(aa5, float);
static assert(is(aa5 == AliasSeq!(int, float)));
}
alias a5 = Tp5!();

33
compiler/test/fail_compilation/aliasassign2.d Normal file
View file

@ -0,0 +1,33 @@
/* TEST_OUTPUT:
---
fail_compilation/aliasassign2.d(16): Error: `alias aa1 = aa1;` cannot alias itself, use a qualified name to create an overload set
fail_compilation/aliasassign2.d(19): Error: template instance `aliasassign2.Tp1!()` error instantiating
fail_compilation/aliasassign2.d(24): Error: undefined identifier `unknown`
fail_compilation/aliasassign2.d(26): Error: template instance `aliasassign2.Tp2!()` error instantiating
fail_compilation/aliasassign2.d(31): Error: template instance `AliasSeqX!(aa3, 1)` template `AliasSeqX` is not defined, did you mean AliasSeq(T...)?
fail_compilation/aliasassign2.d(33): Error: template instance `aliasassign2.Tp3!()` error instantiating
---
*/
alias AliasSeq(T...) = T;
template Tp1()
{
alias aa1 = aa1;
aa1 = AliasSeq!(aa1, float);
}
alias a1 = Tp1!();
template Tp2()
{
alias aa2 = AliasSeq!();
aa2 = AliasSeq!(aa2, unknown);
}
alias a2 = Tp2!();
template Tp3()
{
alias aa3 = AliasSeq!();
aa3 = AliasSeqX!(aa3, 1);
}
alias a3 = Tp3!();