Bug 7491 – import symbol name unavailable in class scope

struct S { private import std.stdio; } class Base { private import std.stdio; } class Derived : Base { static void print() { std.stdio.writeln("Derived"); } } void main() { S.std.stdio.writeln("S"); // Error: Base.std is not a declaration Base.std.stdio.writeln("Base"); // Error: Derived.std is not a declaration Derived.std.stdio.writeln("Derived"); Derived.print(); } --------- Solution would be to add the disabled code. https://github.com/D-Programming-Language/dmd/commit/4bce0eb3acbb9ecce5988c55281aa1b3fd5a42f0#L0R7832 ---- This is problematic in the following case. ---- module a; class Base { private import std.algorithm; } ---- module b; import a, std.stdio; class Derived : Base { void foo() { // 'std' is looked up through Base.std rather than through module level // but Derived has no access right to the private import. std.stdio.writeln("Derived"); } }

Right, the lookup rules are being followed by the compiler, that is, super classes are looked at before module scope is. To get around that, prefix with the . as in: module b; import a, std.stdio; class Derived : Base { void foo() { .std.stdio.writeln("Derived"); ^ note . prefix } }

If that's how things are supposed to work we should enable 'Base.std.stdio' access. https://github.com/D-Programming-Language/dmd/pull/712

See also issue 7494

Commit pushed to master at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/b19051227f2c06c72f248f23dca13aad73e1d321 Merge pull request #712 from dawgfoto/fix7491 fix Issue 7491 - import symbol name unavailable in class scope

Walter, D1 also has this bug, but the change of symbol lookup path would *break* existing codes. Therefore I think we should not *fix* this in D1. How about?

Marking as D1-only, Walter can close it if he agrees with Kenji.

D1 is gone