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Add error on class extending itself

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This commit is contained in:
Wilson Snyder
2020-11-24 18:15:49 -05:00
parent e85a2e860e
commit 35374f09b4
4 changed files with 50 additions and 9 deletions
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src/V3LinkDot.cpp
+14 -9
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@@ -2774,15 +2774,20 @@ private:
if (AstClass* classp = VN_CAST(foundp->nodep(), Class)) {
UINFO(8, "Import to " << nodep << " from export class " << classp
<< endl);
AstClassRefDType* newp
= new AstClassRefDType{nodep->fileline(), classp};
cextp->childDTypep(newp);
classp->isExtended(true);
nodep->isExtended(true);
VSymEnt* srcp = m_statep->getNodeSym(classp);
m_curSymp->importFromClass(m_statep->symsp(), srcp);
VL_DO_DANGLING(cpackagerefp->unlinkFrBack()->deleteTree(),
cpackagerefp);
if (classp == nodep) {
cextp->v3error("Attempting to extend class "
<< nodep->prettyNameQ() << " from itself");
} else {
AstClassRefDType* newp
= new AstClassRefDType{nodep->fileline(), classp};
cextp->childDTypep(newp);
classp->isExtended(true);
nodep->isExtended(true);
VSymEnt* srcp = m_statep->getNodeSym(classp);
m_curSymp->importFromClass(m_statep->symsp(), srcp);
VL_DO_DANGLING(cpackagerefp->unlinkFrBack()->deleteTree(),
cpackagerefp);
}
ok = true;
}
}