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// Copyright 2022 The Dawn & Tint Authors
//
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#ifndef SRC_TINT_LANG_WGSL_AST_ENABLE_H_
#define SRC_TINT_LANG_WGSL_AST_ENABLE_H_
#include <string>
#include <utility>
#include <vector>
#include "src/tint/lang/wgsl/ast/extension.h"
namespace tint::ast {
/// An "enable" directive. Example:
/// ```
/// // Enable an extension named "f16"
/// enable f16;
/// ```
class Enable final : public Castable<Enable, Node> {
public:
/// Create a extension
/// @param pid the identifier of the program that owns this node
/// @param nid the unique node identifier
/// @param src the source of this node
/// @param exts the extensions being enabled by this directive
Enable(GenerationID pid, NodeID nid, const Source& src, VectorRef<const Extension*> exts);
/// Destructor
~Enable() override;
/// @param ext the extension to search for
/// @returns true if this Enable lists the given extension
bool HasExtension(wgsl::Extension ext) const;
/// Clones this node and all transitive child nodes using the `CloneContext` `ctx`.
/// @param ctx the clone context
/// @return the newly cloned node
const Enable* Clone(CloneContext& ctx) const override;
/// The extensions being enabled by this directive
const tint::Vector<const Extension*, 4> extensions;
};
} // namespace tint::ast
#endif // SRC_TINT_LANG_WGSL_AST_ENABLE_H_