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/*
* Copyright (C) 2022 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "ASTBuilder.h"
#include "SourceSpan.h"
#include <wtf/TypeCasts.h>
namespace WGSL::AST {
enum class NodeKind : uint8_t {
Unknown,
// Attribute
AlignAttribute,
BindingAttribute,
BuiltinAttribute,
ConstAttribute,
GroupAttribute,
IdAttribute,
InterpolateAttribute,
InvariantAttribute,
LocationAttribute,
SizeAttribute,
StageAttribute,
WorkgroupSizeAttribute,
Directive,
// Expression
BinaryExpression,
BitcastExpression,
CallExpression,
FieldAccessExpression,
IdentifierExpression,
IdentityExpression,
IndexAccessExpression,
PointerDereferenceExpression,
UnaryExpression,
Function,
Parameter,
Identifier,
// Literal
AbstractFloatLiteral,
AbstractIntegerLiteral,
BoolLiteral,
Float32Literal,
Signed32Literal,
Unsigned32Literal,
ShaderModule,
// Statement
AssignmentStatement,
BreakStatement,
CallStatement,
CompoundAssignmentStatement,
CompoundStatement,
ContinueStatement,
DecrementIncrementStatement,
DiscardStatement,
ForStatement,
IfStatement,
LoopStatement,
PhonyAssignmentStatement,
ReturnStatement,
StaticAssertStatement,
SwitchStatement,
VariableStatement,
WhileStatement,
Structure,
StructureMember,
TypeAlias,
// TypeName
ArrayTypeName,
NamedTypeName,
ParameterizedTypeName,
ReferenceTypeName,
Variable,
VariableQualifier
};
class Node {
WGSL_AST_BUILDER_NODE(Node);
public:
virtual ~Node() = default;
virtual NodeKind kind() const { return NodeKind::Unknown; };
const SourceSpan& span() const { return m_span; }
protected:
Node(SourceSpan span)
: m_span(span)
{ }
private:
SourceSpan m_span;
};
} // namespace WGSL::AST
#define SPECIALIZE_TYPE_TRAITS_WGSL_AST(Kind) \
inline WGSL::AST::NodeKind WGSL::AST::Kind::kind() const { return WGSL::AST::NodeKind::Kind; } \
SPECIALIZE_TYPE_TRAITS_BEGIN(WGSL::AST::Kind) \
static bool isType(const WGSL::AST::Node& node) { return node.kind() == WGSL::AST::NodeKind::Kind; } \
SPECIALIZE_TYPE_TRAITS_END()
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