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https://github.com/carbon-language/carbon-lang.git
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Jon Ross-Perkins
694dd7bf55
Note the dest_class case didn't actually check dyn_cast success until after using the pointer. That's the case I noticed first, but also cleaning up a couple other small related things.
75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include "explorer/ast/element.h"
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#include "common/check.h"
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#include "explorer/ast/declaration.h"
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namespace Carbon {
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NamedElement::NamedElement(Nonnull<const Declaration*> declaration)
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: Element(ElementKind::NamedElement), element_(declaration) {}
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NamedElement::NamedElement(Nonnull<const NamedValue*> struct_member)
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: Element(ElementKind::NamedElement), element_(struct_member) {}
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auto NamedElement::IsNamed(std::string_view name) const -> bool {
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return this->name() == name;
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}
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auto NamedElement::name() const -> std::string_view {
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if (const auto* decl = element_.dyn_cast<const Declaration*>()) {
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return GetName(*decl).value();
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} else {
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const auto* named_value = element_.get<const NamedValue*>();
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return named_value->name;
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}
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}
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auto NamedElement::type() const -> const Value& {
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if (const auto* decl = element_.dyn_cast<const Declaration*>()) {
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return decl->static_type();
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} else {
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const auto* named_value = element_.get<const NamedValue*>();
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return *named_value->value;
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}
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}
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auto NamedElement::declaration() const
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-> std::optional<Nonnull<const Declaration*>> {
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if (const auto* decl = element_.dyn_cast<const Declaration*>()) {
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return decl;
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}
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return std::nullopt;
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}
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auto NamedElement::struct_member() const
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-> std::optional<Nonnull<const NamedValue*>> {
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if (const auto* member = element_.dyn_cast<const NamedValue*>()) {
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return member;
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}
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return std::nullopt;
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}
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void NamedElement::Print(llvm::raw_ostream& out) const { out << name(); }
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// Prints the Element
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void PositionalElement::Print(llvm::raw_ostream& out) const {
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out << "element #" << index_;
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}
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// Return whether the element's name matches `name`.
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auto PositionalElement::IsNamed(std::string_view /*name*/) const -> bool {
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return false;
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}
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void BaseElement::Print(llvm::raw_ostream& out) const { out << "base class"; }
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// Return whether the element's name matches `name`.
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auto BaseElement::IsNamed(std::string_view /*name*/) const -> bool {
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return false;
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}
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} // namespace Carbon
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