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Fix extending a class by a typedef (#6679)

This commit is contained in:
aexzhou 2025-12-21 21:18:35 -08:00
parent 742c0b134c
commit 055bcab408
3 changed files with 23 additions and 3 deletions
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1
docs/CONTRIBUTORS
View File

@ -273,6 +273,7 @@ Yutetsu TAKATSUKASA
Yves Mathieu Yves Mathieu
Zhanglei Wang Zhanglei Wang
Zhen Yan Zhen Yan
Zhou Qinnan (Alex)
Zhou Shen Zhou Shen
Zhouyi Shen Zhouyi Shen
Zixi Li Zixi Li

17
src/V3LinkDot.cpp
View File

@ -5016,6 +5016,23 @@ class LinkDotResolveVisitor final : public VNVisitor {
refParamp->refDTypep(paramp); refParamp->refDTypep(paramp);
nodep->childDTypep(refParamp); nodep->childDTypep(refParamp);
nodep->parameterized(true); nodep->parameterized(true);
} else if (AstTypedef* const typedefp = VN_CAST(foundp->nodep(), Typedef)) {
AstNodeDType* const unwrappedp = typedefp->subDTypep()->skipRefp(); // Unwrap typedef to get the underlying type
if (AstClassRefDType* const classRefp = VN_CAST(unwrappedp, ClassRefDType)) {
AstPin* paramsp = cpackagerefp->paramsp();
if (paramsp) {
paramsp = paramsp->cloneTree(true);
nodep->parameterized(true);
}
nodep->childDTypep(new AstClassRefDType{nodep->fileline(), classRefp->classp(), paramsp});
iterate(nodep->childDTypep());
}
else {
nodep->v3warn(E_UNSUPPORTED,
"Unsupported: " << foundp->nodep()->prettyTypeName()
<< " in 'class extends'");
return;
}
} else { } else {
nodep->v3warn(E_UNSUPPORTED, nodep->v3warn(E_UNSUPPORTED,
"Unsupported: " << foundp->nodep()->prettyTypeName() "Unsupported: " << foundp->nodep()->prettyTypeName()

8
test_regress/t/t_class_extends_alias.py
View File

@ -9,8 +9,10 @@
import vltest_bootstrap import vltest_bootstrap
test.scenarios('linter') test.scenarios('simulator')
test.lint(fails=True, expect_filename=test.golden_filename) test.compile()
test.passes() test.execute()
test.passes()