WerWolv / WerWolv/PatternLanguage

`#pragma once` no working inside `import * from as`

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Dominant language
C++
Stars
275
Forks
75
Avg merge
1d 22h
Merged PRs (30d)
10

Description

a.hexpat
#pragma once 

import std.io;
std::print("{}", "Import a");
b.hexpat
#pragma once

import a;

The following code will output Import a twice. I am expecting that module a should be executed only once as it is guarded with pragma once.

import a;
import * from b as B;

B b @ 0;

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Run the a.hexpat and b.hexpat reproducer, then trace how the direct import and import * from b as B path resolve #pragma once. Done means the sample prints Import a only once while preserving the aliased import behavior.

Written by the indexing model from the issue text.

Assessment

Domain
compilers
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
48/100

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