src/tint/lang/wgsl/ls/utils.h

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#ifndef SRC_TINT_LANG_WGSL_LS_UTILS_H_
#define SRC_TINT_LANG_WGSL_LS_UTILS_H_

#include "langsvr/lsp/lsp.h"
#include "src/tint/lang/wgsl/sem/value_expression.h"
#include "src/tint/utils/diagnostic/source.h"
#include "src/tint/utils/rtti/castable.h"
#include "src/tint/utils/text/styled_text.h"
#include "src/tint/utils/text/text_style.h"

// Forward declarations
namespace tint::sem {
class Node;
}

namespace tint::wgsl::ls {

/// @return the StyledText converted to lsp::MarkupContent
langsvr::lsp::MarkupContent Conv(const StyledText& text);

/// @returns the sem::Load() and sem::Materialize() unwrapped sem::ValueExpression, if `T` is a
/// sem::ValueExpression, otherwise returns @p node.
template <typename T>
const T* Unwrap(const T* node) {
    if (auto* expr = As<sem::ValueExpression, CastFlags::kDontErrorOnImpossibleCast>(node)) {
        return As<T>(expr->Unwrap());
    }
    return node;
}

}  // namespace tint::wgsl::ls

#endif  // SRC_TINT_LANG_WGSL_LS_UTILS_H_