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Rust: Assume prelude is always available in path resolution #19936

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Jul 1, 2025
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Rust: Assume prelude is always available in path resolution #19936

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8 changes: 2 additions & 6 deletions rust/ql/lib/codeql/rust/internal/PathResolution.qll
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Original file line number Diff line number Diff line change
Expand Up @@ -194,7 +194,7 @@ abstract class ItemNode extends Locatable {
Stages::PathResolutionStage::ref() and
result = this.getASuccessorRec(name)
or
preludeEdge(this, name, result) and not declares(this, _, name)
preludeEdge(this, name, result)
or
this instanceof SourceFile and
builtin(name, result)
Expand Down Expand Up @@ -1505,12 +1505,8 @@ private predicate externCrateEdge(ExternCrateItemNode ec, string name, CrateItem
*/
pragma[nomagic]
private predicate preludeEdge(SourceFile f, string name, ItemNode i) {
not declares(f, _, name) and
exists(Crate stdOrCore, ModuleLikeNode mod, ModuleItemNode prelude, ModuleItemNode rust |
f = any(Crate c0 | stdOrCore = c0.getDependency(_) or stdOrCore = c0).getASourceFile()
or
// Give builtin files access to the prelude
f instanceof BuiltinSourceFile
|
stdOrCore.getName() = ["std", "core"] and
mod = stdOrCore.getSourceFile() and
prelude = mod.getASuccessorRec("prelude") and
Expand Down
2 changes: 0 additions & 2 deletions rust/ql/test/library-tests/variables/CONSISTENCY/PathResolutionConsistency.expected
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@@ -1,5 +1,3 @@
multipleCallTargets
| main.rs:85:19:85:40 | ...::from(...) |
| main.rs:102:19:102:40 | ...::from(...) |
| main.rs:374:5:374:27 | ... .add_assign(...) |
| main.rs:459:9:459:23 | z.add_assign(...) |