dmd/compiler/test/fail_compilation/systemvariables.d
Dennis 1188adc84f
Implement DIP1035 - system variables (#14478)
* Remove global `@system:`  annotations from C headers

* Implement DIP1035 - system variables
2022-10-13 17:07:59 -07:00

48 lines
1.5 KiB
D

/*
REQUIRED_ARGS: -preview=systemVariables
TEST_OUTPUT:
---
fail_compilation/systemvariables.d(30): Error: cannot access `@system` variable `gInt` in @safe code
fail_compilation/systemvariables.d(31): Error: cannot access `@system` variable `gInt` in @safe code
fail_compilation/systemvariables.d(32): Error: cannot access `@system` variable `gArr` in @safe code
fail_compilation/systemvariables.d(33): Error: cannot access `@system` variable `gArr` in @safe code
fail_compilation/systemvariables.d(34): Error: cannot access `@system` variable `gInt` in @safe code
fail_compilation/systemvariables.d(37): Error: cannot access `@system` variable `lSys` in @safe code
fail_compilation/systemvariables.d(38): Error: cannot access `@system` variable `lSys` in @safe code
fail_compilation/systemvariables.d(39): Error: cannot access `@system` variable `lSys` in @safe code
fail_compilation/systemvariables.d(41): Error: cannot access `@system` variable `eInt` in @safe code
---
*/
// http://dlang.org/dips/1035
@system int gInt;
@system enum int eInt = 3;
@system { int[] gArr; }
alias aliasToSys = gInt;
void increment(ref int x) @safe { x++; }
void incrementP(int* x) @safe { (*x)++; }
void basic() @safe
{
gInt = 0; // error
gInt++; // error
gArr ~= 30; // error
const c = gArr[0]; // error
aliasToSys++; // error
@system int lSys = 0;
lSys = 0; // error
increment(lSys); // error
incrementP(&lSys); // error
int a = eInt; // error
int b = typeof(eInt).max; // allowed
void f() @trusted
{
lSys = 0; // allowed
}
}