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

To update the generated file, run:
    ./tools/run gen

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

{{- $I := LoadIntrinsics "src/tint/lang/wgsl/wgsl.def" -}}

#ifndef SRC_TINT_LANG_WGSL_BUILTIN_FN_H_
#define SRC_TINT_LANG_WGSL_BUILTIN_FN_H_

#include <cstdint>
#include <string>

#include "src/tint/utils/traits/traits.h"

// \cond DO_NOT_DOCUMENT
namespace tint::wgsl {

/// Enumerator of all builtin functions
enum class BuiltinFn : uint8_t {
{{- range $I.Sem.Builtins }}
    k{{PascalCase .Name}},
{{- end }}
    kNone,
};

/// Matches the BuiltinFn by name
/// @param name the builtin name to parse
/// @returns the parsed BuiltinFn, or BuiltinFn::kNone if `name` did not
/// match any builtin function.
BuiltinFn ParseBuiltinFn(std::string_view name);

/// @returns the name of the builtin function type. The spelling, including
/// case, matches the name in the WGSL spec.
const char* str(BuiltinFn i);

/// Emits the name of the builtin function type. The spelling, including case,
/// matches the name in the WGSL spec.
template <typename STREAM, typename = traits::EnableIfIsOStream<STREAM>>
auto& operator<<(STREAM& o, BuiltinFn i) {
  return o << str(i);
}

/// All builtin functions
constexpr BuiltinFn kBuiltinFns[] = {
{{- range $I.Sem.Builtins }}
    BuiltinFn::k{{PascalCase .Name}},
{{- end }}
};

/// All builtin function names
constexpr const char* kBuiltinFnStrings[] = {
{{- range $I.Sem.Builtins }}
    "{{.Name}}",
{{- end }}
};

/// Determines if the given `f` is a coarse derivative.
/// @param f the builtin type
/// @returns true if the given derivative is coarse.
bool IsCoarseDerivative(BuiltinFn f);

/// Determines if the given `f` is a fine derivative.
/// @param f the builtin type
/// @returns true if the given derivative is fine.
bool IsFineDerivative(BuiltinFn f);

/// Determine if the given `f` is a derivative builtin.
/// @param f the builtin type
/// @returns true if the given `f` is a derivative builtin
bool IsDerivative(BuiltinFn f);

/// Determines if the given `f` is a texture operation builtin.
/// @param f the builtin type
/// @returns true if the given `f` is a texture operation builtin
bool IsTexture(BuiltinFn f);

/// Determines if the given `f` is an image query builtin.
/// @param f the builtin type
/// @returns true if the given `f` is an image query builtin
bool IsImageQuery(BuiltinFn f);

/// Determines if the given `f` is a data packing builtin.
/// @param f the builtin type
/// @returns true if the given `f` is a data packing builtin
bool IsDataPacking(BuiltinFn f);

/// Determines if the given `f` is a data unpacking builtin.
/// @param f the builtin type
/// @returns true if the given `f` is a data unpacking builtin
bool IsDataUnpacking(BuiltinFn f);

/// Determines if the given `f` is a barrier builtin.
/// @param f the builtin type
/// @returns true if the given `f` is a barrier builtin
bool IsBarrier(BuiltinFn f);

/// Determines if the given `f` is an atomic builtin.
/// @param f the builtin type
/// @returns true if the given `f` is an atomic builtin
bool IsAtomic(BuiltinFn f);

/// Determines if the given `f` is a builtin defined in the language extension
/// `packed_4x8_integer_dot_product`.
/// @param f the builtin type
/// @returns true if the given `f` is a builtin defined in the language extension
/// `packed_4x8_integer_dot_product`.
bool IsPacked4x8IntegerDotProductBuiltin(BuiltinFn f);

/// Determines if the given `f` is a subgroup builtin.
/// @param f the builtin type
/// @returns true if the given `f` is a subgroup builtin
bool IsSubgroup(BuiltinFn f);

/// Determines if the given `f` is a quadSwap* builtin.
/// @param f the builtin type
/// @returns true if the given `f` is a quadSwap* builtin
bool IsQuadSwap(BuiltinFn f);

/// Determines if the given `f` may have side-effects (i.e. writes to at least one of its inputs)
/// @returns true if intrinsic may have side-effects
bool HasSideEffects(BuiltinFn f);

}  // namespace tint::wgsl
// \endcond

#endif  // SRC_TINT_LANG_WGSL_BUILTIN_FN_H_