1320993 - Fix exporting default class expression.
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6d26641379
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@ -1164,6 +1164,13 @@ ModuleBuilder::processExport(frontend::ParseNode* pn)
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bool isDefault = pn->getKind() == PNK_EXPORT_DEFAULT;
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ParseNode* kid = isDefault ? pn->pn_left : pn->pn_kid;
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if (isDefault && pn->pn_right) {
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// This is an export default containing an expression.
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RootedAtom localName(cx_, cx_->names().starDefaultStar);
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RootedAtom exportName(cx_, cx_->names().default_);
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return appendExportEntry(exportName, localName);
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}
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switch (kid->getKind()) {
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case PNK_EXPORT_SPEC_LIST:
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MOZ_ASSERT(!isDefault);
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@ -1177,53 +1184,46 @@ ModuleBuilder::processExport(frontend::ParseNode* pn)
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break;
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case PNK_CLASS: {
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const ClassNode& cls = kid->as<ClassNode>();
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MOZ_ASSERT(cls.names());
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RootedAtom localName(cx_, cls.names()->innerBinding()->pn_atom);
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RootedAtom exportName(cx_, isDefault ? cx_->names().default_ : localName.get());
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if (!appendExportEntry(exportName, localName))
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return false;
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break;
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const ClassNode& cls = kid->as<ClassNode>();
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MOZ_ASSERT(cls.names());
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RootedAtom localName(cx_, cls.names()->innerBinding()->pn_atom);
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RootedAtom exportName(cx_, isDefault ? cx_->names().default_ : localName.get());
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if (!appendExportEntry(exportName, localName))
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return false;
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break;
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}
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case PNK_VAR:
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case PNK_CONST:
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case PNK_LET: {
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MOZ_ASSERT(kid->isArity(PN_LIST));
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for (ParseNode* var = kid->pn_head; var; var = var->pn_next) {
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if (var->isKind(PNK_ASSIGN))
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var = var->pn_left;
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MOZ_ASSERT(var->isKind(PNK_NAME));
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RootedAtom localName(cx_, var->pn_atom);
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RootedAtom exportName(cx_, isDefault ? cx_->names().default_ : localName.get());
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if (!appendExportEntry(exportName, localName))
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return false;
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}
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break;
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MOZ_ASSERT(kid->isArity(PN_LIST));
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for (ParseNode* var = kid->pn_head; var; var = var->pn_next) {
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if (var->isKind(PNK_ASSIGN))
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var = var->pn_left;
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MOZ_ASSERT(var->isKind(PNK_NAME));
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RootedAtom localName(cx_, var->pn_atom);
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RootedAtom exportName(cx_, isDefault ? cx_->names().default_ : localName.get());
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if (!appendExportEntry(exportName, localName))
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return false;
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}
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break;
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}
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case PNK_FUNCTION: {
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RootedFunction func(cx_, kid->pn_funbox->function());
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if (!func->isArrow()) {
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RootedAtom localName(cx_, func->explicitName());
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RootedAtom exportName(cx_, isDefault ? cx_->names().default_ : localName.get());
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MOZ_ASSERT_IF(isDefault, localName);
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if (!appendExportEntry(exportName, localName))
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return false;
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break;
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}
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}
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MOZ_FALLTHROUGH; // Arrow functions are handled below.
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default:
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MOZ_ASSERT(isDefault);
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RootedAtom localName(cx_, cx_->names().starDefaultStar);
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RootedAtom exportName(cx_, cx_->names().default_);
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RootedFunction func(cx_, kid->pn_funbox->function());
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MOZ_ASSERT(!func->isArrow());
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RootedAtom localName(cx_, func->explicitName());
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RootedAtom exportName(cx_, isDefault ? cx_->names().default_ : localName.get());
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MOZ_ASSERT_IF(isDefault, localName);
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if (!appendExportEntry(exportName, localName))
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return false;
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break;
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}
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default:
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MOZ_CRASH("Unexpected parse node");
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}
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return true;
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}
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