mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 21:10:12 +01:00
Richard Smith
332a368cee
As discussed [on discord](https://discord.com/channels/655572317891461132/655578254970716160/1178878128714678282) and today's toolchain discussion.
40 lines
1.3 KiB
C++
40 lines
1.3 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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#ifndef CARBON_TOOLCHAIN_PARSE_TREE_NODE_LOCATION_TRANSLATOR_H_
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#define CARBON_TOOLCHAIN_PARSE_TREE_NODE_LOCATION_TRANSLATOR_H_
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#include "toolchain/parse/tree.h"
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namespace Carbon::Parse {
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class NodeLocationTranslator : public DiagnosticLocationTranslator<NodeId> {
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public:
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explicit NodeLocationTranslator(const Lex::TokenizedBuffer* tokens,
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llvm::StringRef filename,
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const Tree* parse_tree)
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: token_translator_(tokens),
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filename_(filename),
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parse_tree_(parse_tree) {}
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// Map the given token into a diagnostic location.
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auto GetLocation(NodeId node) -> DiagnosticLocation override {
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// Support the invalid token as a way to emit only the filename, when there
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// is no line association.
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if (!node.is_valid()) {
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return {.file_name = filename_};
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}
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return token_translator_.GetLocation(parse_tree_->node_token(node));
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}
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private:
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Lex::TokenLocationTranslator token_translator_;
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llvm::StringRef filename_;
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const Tree* parse_tree_;
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};
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} // namespace Carbon::Parse
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#endif // CARBON_TOOLCHAIN_PARSE_TREE_NODE_LOCATION_TRANSLATOR_H_
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