mirror of
https://github.com/carbon-language/carbon-lang.git
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Lucile Rose Nihlen
625f2ca629
Refactors the link driver to automatically compile and cache the carbon prelude for use in linking. Implements a `carbon_library` rule for compiling the Core library dependencies in the examples.
119 lines
3.8 KiB
C++
119 lines
3.8 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_LANGUAGE_SERVER_CONTEXT_H_
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#define CARBON_TOOLCHAIN_LANGUAGE_SERVER_CONTEXT_H_
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#include <memory>
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#include <string>
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#include "clang-tools-extra/clangd/LSPBinder.h"
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#include "common/map.h"
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#include "toolchain/base/install_paths.h"
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#include "toolchain/base/shared_value_stores.h"
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#include "toolchain/diagnostics/consumer.h"
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#include "toolchain/diagnostics/emitter.h"
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#include "toolchain/diagnostics/file_diagnostics.h"
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#include "toolchain/driver/codegen_options.h"
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#include "toolchain/driver/compile_driver.h"
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#include "toolchain/driver/compile_options.h"
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#include "toolchain/lex/tokenized_buffer.h"
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#include "toolchain/parse/tree_and_subtrees.h"
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#include "toolchain/sem_ir/file.h"
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namespace Carbon::LanguageServer {
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// Context for LSP call handling.
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class Context {
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public:
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// Cached information for an open file.
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class File {
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public:
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explicit File(clang::clangd::URIForFile uri)
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: uri_(std::move(uri)),
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filename_(uri_.file().str()),
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options_(&codegen_options_) {}
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// Changes the file's text, updating dependent state.
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auto SetText(Context& context, std::optional<int64_t> version,
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llvm::StringRef text) -> void;
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auto filename() const -> llvm::StringRef { return filename_; }
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auto text() const -> llvm::StringRef { return text_; }
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auto tree_and_subtrees() const -> const Parse::TreeAndSubtrees& {
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CARBON_CHECK(compile_driver_);
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return compile_driver_->units()[compile_driver_->first_input_index()]
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->parse_tree_and_subtrees();
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}
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private:
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// The filename, stable across instances.
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clang::clangd::URIForFile uri_;
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std::string filename_;
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// Current file content, and derived values.
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std::string text_;
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CodegenOptions codegen_options_;
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CompileOptions options_;
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std::unique_ptr<CompileDriver> compile_driver_;
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};
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// `vlog_stream` is optional; other parameters are required.
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explicit Context(const InstallPaths* installation,
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llvm::raw_ostream* vlog_stream,
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Diagnostics::Consumer* consumer,
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clang::clangd::LSPBinder::RawOutgoing* outgoing,
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bool prelude_import);
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// Returns the virtual filesystem.
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auto vfs() -> llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>& {
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return vfs_;
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}
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// Returns a reference to the file if it's known, or diagnoses and returns
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// null.
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auto LookupFile(llvm::StringRef filename) -> File*;
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// Wrapper for LSP notification.
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auto PublishDiagnostics(clang::clangd::PublishDiagnosticsParams params)
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-> void {
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outgoing_->notify("textDocument/publishDiagnostics", params);
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}
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auto installation() -> const InstallPaths& { return *installation_; }
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auto vlog_stream() -> llvm::raw_ostream* { return vlog_stream_; }
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auto file_emitter() -> Diagnostics::FileEmitter& { return file_emitter_; }
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auto no_loc_emitter() -> Diagnostics::NoLocEmitter& {
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return no_loc_emitter_;
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}
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auto files() -> Map<std::string, File>& { return files_; }
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auto prelude_import() const -> bool { return prelude_import_; }
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private:
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const InstallPaths* installation_;
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// Diagnostic and output streams.
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llvm::raw_ostream* vlog_stream_;
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Diagnostics::FileEmitter file_emitter_;
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Diagnostics::NoLocEmitter no_loc_emitter_;
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clang::clangd::LSPBinder::RawOutgoing* outgoing_;
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// Shared virtual filesystem.
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llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem> vfs_;
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// Content of files managed by the language client.
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Map<std::string, File> files_;
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bool prelude_import_;
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};
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} // namespace Carbon::LanguageServer
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#endif // CARBON_TOOLCHAIN_LANGUAGE_SERVER_CONTEXT_H_
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