| // Copyright 2020 The Tint Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "src/ast/identifier_expression.h" |
| |
| namespace tint { |
| namespace ast { |
| |
| IdentifierExpression::IdentifierExpression(const std::string& name) |
| : Expression(), segments_({name}) {} |
| |
| IdentifierExpression::IdentifierExpression(const Source& source, |
| const std::string& name) |
| : Expression(source), segments_({name}) {} |
| |
| IdentifierExpression::IdentifierExpression(std::vector<std::string> segments) |
| : Expression(), segments_(std::move(segments)) {} |
| |
| IdentifierExpression::IdentifierExpression(const Source& source, |
| std::vector<std::string> segments) |
| : Expression(source), segments_(std::move(segments)) {} |
| |
| IdentifierExpression::IdentifierExpression(IdentifierExpression&&) = default; |
| |
| IdentifierExpression::~IdentifierExpression() = default; |
| |
| std::string IdentifierExpression::path() const { |
| if (segments_.size() < 2) { |
| return ""; |
| } |
| |
| std::string path = ""; |
| // We skip the last segment as that's the name, not part of the path |
| for (size_t i = 0; i < segments_.size() - 1; ++i) { |
| if (i > 0) { |
| path += "::"; |
| } |
| path += segments_[i]; |
| } |
| return path; |
| } |
| |
| bool IdentifierExpression::IsIdentifier() const { |
| return true; |
| } |
| |
| bool IdentifierExpression::IsValid() const { |
| if (segments_.size() == 0) |
| return false; |
| |
| for (const auto& segment : segments_) { |
| if (segment.size() == 0) |
| return false; |
| } |
| return true; |
| } |
| |
| void IdentifierExpression::to_str(std::ostream& out, size_t indent) const { |
| make_indent(out, indent); |
| out << "Identifier{"; |
| if (has_path()) { |
| out << path() << "::"; |
| } |
| out << name(); |
| out << "}" << std::endl; |
| } |
| |
| } // namespace ast |
| } // namespace tint |