/** @page sourcemanagement Source Management
@brief APIs for loading and managing source code for compilation

@section sourceman Source Manager

The slang::SourceManager class is responsible for loading and storing all
source code that will be parsed or compiled. All of the source is stored in
memory until the SourceManager is destroyed; because the rest of the library
only uses string_views that point into this memory, you must keep the
SourceManager alive until you're fully done with all parsing and compilation.

The SourceManager operates on "buffers", which are groups of source code.
Source files are one kind of buffer, which can be added to the manager via
the slang::SourceManager::readSource method. It returns a slang::SourceBuffer
which contains a unique slang::BufferID for that buffer plus a pointer to the
actual source text.

@code{.cpp}
SourceManager sm;
SourceBuffer buffer = sm.readSource("path/to/mySource.sv");
@endcode

In addition to reading source from disk, you can also pass source in directly
via the slang::SourceManager::assignText method.

@code{.cpp}
SourceManager sm;
SourceBuffer buffer = sm.assignText("module m; endmodule");
@endcode

Besides files, macro expansions are the other kind of buffer that can be
tracked by the manager. Each macro expansion constitutes a new buffer, and
tracks both where the original macro text came from as well as where the
expansion is occurring.

@section sourceloc Source Locations

It's important to be able to concisely represent locations in the user's
original source code so that accurate diagnostics can be issued.
The slang::SourceLocation class is used for this purpose. It combines a
BufferID with a byte offset representing the location within that buffer.

SourceLocation is designed to be compact; in release mode it consumes only
8 bytes. In order to learn useful things about that location you need the
SourceManager that originally created it. SourceManager has many methods
for querying information about source locations; see the API reference for
more details.

In debug builds each SourceLocation includes the textual name of the buffer
with which it is associated, to ease inspection when viewing locations in
a debugger.

*/
