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lookup.d
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lookup.d
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struct StructLevelDelegateAccessCheck{
int y;
static foo(int delegate(int) dg){return dg(2);}
static assert(foo((int x)=>x)==2);
static assert(is(typeof((int x)=>x)==int function(int)));
static assert(foo(delegate(int x)=>x)==2);
static assert(is(typeof(delegate(int x)=>x)==int delegate(int)));
pragma(msg, foo((int x)=>y)); // error
pragma(msg, foo(delegate(int x)=>y)); // error
}
struct TTTTTTTTT{
static int fun(T)(){
T s;
return s.f();
}
static int main() {
int x=2;
void f(){}
struct R { int f() { return x; } }
auto m = fun!(R)();
return m;
}
pragma(msg, main());
}
struct TemplateAliasParamAccessCheck2{
static template foot(alias a){
auto foot(){
return a();
}
}
static int main(){
int x=2;
int foo(){ return x; }
static int bar(){
return foot!foo(); // error
}
return bar();
}
pragma(msg, main());
}
struct TemplateAliasParamAccessCheck{
int dontTouchThis(alias a)(){
static struct S{
int foo(){
pragma(msg, typeof(a(2)));
static assert(is(typeof({return a(2);}))); // no access check inside typeof
a(2); // error
return 2;
}
}
S s;
return s.foo();
}
int nanana(){
int x=3;
auto goo(T)(T a)=>a+x;
return dontTouchThis!(a=>a+x)();
}
}
struct TemplateFunctionInstanceAccessCheck{
struct S2{
void x()(int a) { }
void y() const {
x(42); // error
auto u=&x!(); // error
pragma(msg, typeof(&x!())); // ok
static assert(is(typeof(&x!())==void delegate(int)));
}
}
}
struct TestIllegalInheritance{
class A { auto foo(){ return "A"; } alias int string; } // error
template ID(alias a){ alias a ID; }
template P(){ alias ID!(mixin(new C().foo())) P; }
class C : P!(){
override string foo(){ return x; }
}
enum x = "A";
alias immutable(char)[] string;
}
struct TestCircInheritLookup{
enum foo = 2;
class A : B{ int bar=foo; }
class B : A{ int x=y; } // error
}
struct TestInheritLookup{
class A{
static if(B.x) enum a = "success!";
pragma(msg, B.z);
static assert(B.z=="=D");
}
class B: A{
enum x = true;
enum y = a;
static if(y=="success!") enum z = "=D";
pragma(msg, y);
}
template Seq(T...){ alias T Seq; }
class X{
enum y=2;
}
class Y : Seq!(X,1,int){ // error
auto x = y; // ok
}
}
template hasSave(R){
enum hasSave=is(typeof({
R r;
r=r.save;
}));
}
static struct DontKnowIfHasSave{
static if(!hasSave!(typeof(this))) @property void save(){ } // error
}
struct TryEscapeInout{
void foo()inout{ }
auto bar(){ return &foo; }
}
static assert(is(typeof(TryEscapeInout.bar)==void delegate()));
pragma(msg, typeof(TryEscapeInout.bar));
struct DelegateFromMemberFunc {
char c[];
void foo() { }
int delegate() ddd;
void bar() const {
static assert(!is(typeof(ddd)));
foo; // error
static assert(!is(typeof(foo)));
static assert(is(typeof(&foo)));
static assert(is(typeof(&this.foo)));
static assert(is(typeof(this)));
void delegate() dg = &this.goo;
dg=&this.foo; // error
dg=&foo; // error
dg();
pragma(msg, typeof(&goo));
static assert(is(typeof(&goo)==void delegate()const));
static assert(is(typeof(&this.goo)==void delegate()const));
}
void goo()inout{
pragma(msg, typeof(&goo));
}
void baz()immutable{
//static assert(is(typeof(&goo)))
pragma(msg, typeof(&goo));
// void delegate()immutable dg = &this.goo; // TODO
void delegate()const inout dg = &this.goo;
}
}
struct TestMutDelegateFromConstRcvr{
struct S{
int delegate() dg;
int delegate()immutable dg2;
int delegate()const dg3;
}
int test(){
int x;
S s; s.dg = ()=>(x=2);
s.dg3 = s.dg2 = ()immutable=>x;
const(S) t=s;
int y=t.dg2()+t.dg3(); // ok
return t.dg()+y; // error
}
}
//pragma(msg, is(int delegate()immutable:const(int delegate()immutable)));
const(int delegate()immutable) foofo;
//pragma(msg, typeof(cast()foo));
void foo(alias f,T...)(){
T[0] t;
}
void main(){
int x=2;
struct S{
int getX(){return x;}
}
int f(){return 2;}
foo!(f,S)();
}
auto loc1(){
int x = 2;
struct Loc1{
int getX(){ return x; } // error // TODO: better message?
}
return Loc1();
}
auto loc2(){
int x = 3;
struct Loc2{
int getX(){ return x; }
}
return Loc2();
}
static int[] build(A,B)(){
A a;B b;
return [a.getX()];
}
pragma(msg, build!(typeof(loc1()), typeof(loc2()))());
int ppccfoo(){ return 1; }
class PP{
int foo(){ return 2; }
}
class CC: PP{
int bar(){
ppccfoo();
PP.foo();
CC.foo();
super.foo();
this.foo();
this.bar();
super.bar();// error
return foo();
}
static int baz(){
this.foo();// error
this.bar();// error
super.foo();// error
/+ ppccfoo();
PP.ppccfoo(); // error
CC.ppccfoo(); // error
PP.foo(); // error
return foo(); // error+/
}
pragma(msg, typeof(this));
pragma(msg, typeof(super));
static assert(is(typeof(this)==CC));
static assert(is(typeof(super)==PP));
}
pragma(msg, typeof(this)); // error
struct NOPP{
void foo(){
super.foo();//error
}
}
/+
class D{
int x;
template bar(){
int foo(){
return x;
}
}
static class C{
int foo(){
return bar!().foo(); // error
}
}
}
int intatmodulescope;
void testmodulescoperesolution(){
double intatmodulescope; // fake
static assert(is(typeof(.intatmodulescope)==int));
pragma(msg, typeof(.intatmodulescope));
}
alias typeof((immutable(void[])).length) size_t;
pragma(msg, size_t);
void testpuredollar(){
int[] x = [1,2,3];
x[(()pure=>$,$-1)]=2; // must work
}
template Inex(a...){
alias Inex!(1,a[0..n]) Inex; // error
}
pragma(msg, Inex!(2,2,3));
template Seq(T...){ alias T Seq;}
struct A{
alias B.b b;
static int foo;
int bar;
}
struct B{
shared int b;
alias A.foo foo;
alias A.bar bar;
}
void foo(){
immutable(A) a;
const(B) b;
static assert(!is(typeof({a.b=2;})),"wrong type for this");
a.foo=2; // ok: access mutable static member
static assert(!is(typeof({a.bar=2;})),"a.bar is immutable");
static assert(is(typeof(a.bar)==immutable(int)));
static assert(!is(typeof({b.b=2;})), "b.b is shared const");
static assert(is(typeof(b.b)==shared(const(int))));
b.foo=2; // ok: access mutable static member of another type
static assert(!is(typeof({b.bar=2;})), "wrong type for this");
static assert(is(typeof(b.b)==const(typeof(B.b))));
pragma(msg, typeof(B.b));
pragma(msg, typeof(b.b));
}
/+struct Fancy{
int a;
int b;
alias Seq!(a,b) c;
//alias a c;
}
auto main(){
Fancy f;
f.a=2;
f.c[0]=3;
assert(a==3);
f.b=2;
assert(f.c[1]==2);
return f.c;
}
pragma(msg, main());+/
void local(){
int x;
//alias x y;
alias Seq!x y;
static void foo(){y[0]++;} // error
}
template TT(int i){
alias Rest V;
static if(i) alias TT!(0).V Rest;
else alias thisiszero Rest;
static if(i) enum thisisone=true;
else enum thisiszero = 2;
}
pragma(msg, TT!(0).V);
pragma(msg, TT!(1).V);
template SS(bool i){
static if(i) alias int V;
else alias double V;
alias V A;
}
pragma(msg, SS!1.V);
pragma(msg, SS!(0).A);
alias QQ.x a;
alias QQ.y b;
double x,y;
alias Seq!(QQ.x, QQ.y) QQs;
pragma(msg, QQs);
struct QQ{
//int x=2,y=3;
int x(); int y;
static void foo(){
a(); // error
b=b; // error
}
}
struct G {G g; }
struct F(T) { static int f(immutable ref T) {return 2;} }
pragma(msg, F!G.f(G.g)); // just a type error, because the pragma would attempt compile-time lookup of G.g
struct WW{
void foo(){
a=2; // error
}
}
//immutable foo = 2;
//pragma(msg, a);
struct Foo{
//static double foo(){}
static double foo(int){}
int foo(){}
static void goo(){
Foo f;
auto x=f.foo(2);
auto y=Foo.foo(); // error
pragma(msg, "x: ",typeof(x)," y: ",typeof(y));
}
}
struct Test{
static inout(int) foo(inout(int)){return 1;}
double foo(int){return 1.0;}
static void goo(){
//foo();
pragma(msg, typeof(Test.foo(cast(shared)1))); // error
Test.foo(2); // TODO: should work (?)
}
}
alias S.t st;
struct S{
int t;
void foo(){
st=2;
}
}
// +/
// +/
// +/