chromium/third_party/dawn/src/tint/lang/wgsl/sem/statement.h

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#ifndef SRC_TINT_LANG_WGSL_SEM_STATEMENT_H_
#define SRC_TINT_LANG_WGSL_SEM_STATEMENT_H_

#include "src/tint/lang/wgsl/ast/diagnostic_control.h"
#include "src/tint/lang/wgsl/sem/behavior.h"
#include "src/tint/lang/wgsl/sem/node.h"
#include "src/tint/utils/containers/hashmap.h"
#include "src/tint/utils/symbol/symbol.h"

// Forward declarations
namespace tint::ast {
class Statement;
}  // namespace tint::ast
namespace tint::sem {
class BlockStatement;
class CompoundStatement;
class Function;
class LocalVariable;
}  // namespace tint::sem

namespace tint::sem {
namespace detail {
/// FindFirstParentReturn is a traits helper for determining the return type for
/// the template member function Statement::FindFirstParent().
/// For zero or multiple template arguments, FindFirstParentReturn::type
/// resolves to CompoundStatement.
template <typename... TYPES>
struct FindFirstParentReturn { … };

/// A specialization of FindFirstParentReturn for a single template argument.
/// FindFirstParentReturn::type resolves to the single template argument.
FindFirstParentReturn<T>;

FindFirstParentReturnType;
}  // namespace detail

/// Statement holds the semantic information for a statement.
class Statement : public Castable<Statement, Node> { … };

/// CompoundStatement is the base class of statements that can hold other
/// statements.
class CompoundStatement : public Castable<CompoundStatement, Statement> { … };

template <typename Pred>
const CompoundStatement* Statement::FindFirstParent(Pred&& pred) const { … }

template <typename... TYPES>
const sem::detail::FindFirstParentReturnType<TYPES...>* Statement::FindFirstParent() const { … }

}  // namespace tint::sem

#endif  // SRC_TINT_LANG_WGSL_SEM_STATEMENT_H_