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47 lines
1.7 KiB
C++
47 lines
1.7 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_DRIVER_DRIVER_H_
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#define CARBON_TOOLCHAIN_DRIVER_DRIVER_H_
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#include "common/command_line.h"
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/StringRef.h"
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#include "toolchain/driver/driver_env.h"
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#include "toolchain/driver/driver_subcommand.h"
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namespace Carbon {
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// Command line interface driver.
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//
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// Provides simple API to parse and run command lines for Carbon. It is
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// generally expected to be used to implement command line tools for working
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// with the language.
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class Driver {
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public:
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// Constructs a driver with the provided environment. `input_stream` is
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// optional; other parameters are required.
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explicit Driver(llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem> fs,
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const InstallPaths* installation, FILE* input_stream,
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llvm::raw_pwrite_stream* output_stream,
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llvm::raw_pwrite_stream* error_stream, bool fuzzing = false)
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: driver_env_(std::move(fs), installation, input_stream, output_stream,
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error_stream, fuzzing) {}
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// Parses the given arguments into both a subcommand to select the operation
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// to perform and any arguments to that subcommand.
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//
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// Returns true if the operation succeeds. If the operation fails, returns
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// false and any information about the failure is printed to the registered
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// error stream (stderr by default).
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auto RunCommand(llvm::ArrayRef<llvm::StringRef> args) -> DriverResult;
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private:
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DriverEnv driver_env_;
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};
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} // namespace Carbon
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#endif // CARBON_TOOLCHAIN_DRIVER_DRIVER_H_
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