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Fix parameterized class typedef as interface type parameter (#6983) (#6984)

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This commit is contained in:
Leela Pakanati
2026-02-01 22:37:29 -05:00
committed by GitHub
parent 407fc74195
commit b2fa3fb54e
4 changed files with 76 additions and 4 deletions
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src/V3Param.cpp
+19 -4
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@@ -810,17 +810,32 @@ class ParamProcessor final {
}
}
// Helper to resolve DOT to RefDType for class type references
// Helper to resolve DOT to RefDType for class type references.
// If the class is parameterized and not yet specialized, specialize it first.
// This handles cases like: iface #(param_class#(value)::typedef_name)
void resolveDotToTypedef(AstNode* exprp) {
AstDot* const dotp = VN_CAST(exprp, Dot);
if (!dotp) return;
const AstClassOrPackageRef* const classRefp = VN_CAST(dotp->lhsp(), ClassOrPackageRef);
AstClassOrPackageRef* const classRefp = VN_CAST(dotp->lhsp(), ClassOrPackageRef);
if (!classRefp) return;
const AstClass* const lhsClassp = VN_CAST(classRefp->classOrPackageSkipp(), Class);
if (!lhsClassp) return;
AstParseRef* const parseRefp = VN_CAST(dotp->rhsp(), ParseRef);
if (!parseRefp) return;
const AstClass* lhsClassp = VN_CAST(classRefp->classOrPackageSkipp(), Class);
if (classRefp->paramsp()) {
// ClassOrPackageRef has parameters - may need to specialize the class
AstClass* const srcClassp = VN_CAST(classRefp->classOrPackageNodep(), Class);
if (srcClassp && srcClassp->hasGParam()) {
// Specialize if the reference still points to the generic class
if (lhsClassp == srcClassp || !lhsClassp) {
UINFO(9, "resolveDotToTypedef: specializing " << srcClassp->name() << endl);
classRefDeparam(classRefp, srcClassp);
lhsClassp = VN_CAST(classRefp->classOrPackageSkipp(), Class);
}
}
}
if (!lhsClassp) return;
AstTypedef* const tdefp
= VN_CAST(m_memberMap.findMember(lhsClassp, parseRefp->name()), Typedef);
if (tdefp) {