{{- /*
--------------------------------------------------------------------------------
Template file for use with tools/src/cmd/gen to generate interpolate_attribute.h

See:
* tools/src/cmd/gen for structures used by this template
* https://golang.org/pkg/text/template/ for documentation on the template syntax
--------------------------------------------------------------------------------
*/ -}}

{{- Import "src/tint/templates/enums.tmpl.inc" -}}

#ifndef SRC_TINT_AST_INTERPOLATE_ATTRIBUTE_H_
#define SRC_TINT_AST_INTERPOLATE_ATTRIBUTE_H_

#include <ostream>
#include <string>

#include "src/tint/ast/attribute.h"

namespace tint::ast {

/// The interpolation type.
{{ Eval "DeclareEnum" (Sem.Enum "interpolation_type") }}

/// The interpolation sampling.
{{ Eval "DeclareEnum" (Sem.Enum "interpolation_sampling") }}

/// An interpolate attribute
class InterpolateAttribute final : public Castable<InterpolateAttribute, Attribute> {
  public:
    /// Create an interpolate attribute.
    /// @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 type the interpolation type
    /// @param sampling the interpolation sampling
    InterpolateAttribute(ProgramID pid,
                         NodeID nid,
                         const Source& src,
                         InterpolationType type,
                         InterpolationSampling sampling);
    ~InterpolateAttribute() override;

    /// @returns the WGSL name for the attribute
    std::string Name() const override;

    /// Clones this node and all transitive child nodes using the `CloneContext`
    /// `ctx`.
    /// @param ctx the clone context
    /// @return the newly cloned node
    const InterpolateAttribute* Clone(CloneContext* ctx) const override;

    /// The interpolation type
    const InterpolationType type;

    /// The interpolation sampling
    const InterpolationSampling sampling;
};

}  // namespace tint::ast

#endif  // SRC_TINT_AST_INTERPOLATE_ATTRIBUTE_H_