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//
// Copyright 2020 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
#ifndef COMPILER_TRANSLATOR_TRANSLATORMETALDIRECT_NODETYPE_H_
#define COMPILER_TRANSLATOR_TRANSLATORMETALDIRECT_NODETYPE_H_
#include "compiler/translator/tree_util/IntermTraverse.h"
namespace sh
{
enum class NodeType
{
Unknown,
Symbol,
ConstantUnion,
FunctionPrototype,
PreprocessorDirective,
Unary,
Binary,
Ternary,
Swizzle,
IfElse,
Switch,
Case,
FunctionDefinition,
Aggregate,
Block,
GlobalQualifierDeclaration,
Declaration,
Loop,
Branch,
};
// This is a function like object instead of a function that stack allocates this because
// TIntermTraverser is a heavy object to construct.
class GetNodeType : private TIntermTraverser
{
NodeType nodeType;
public:
GetNodeType() : TIntermTraverser(true, false, false) {}
NodeType operator()(TIntermNode &node)
{
node.visit(Visit::PreVisit, this);
return nodeType;
}
private:
void visitSymbol(TIntermSymbol *) override { nodeType = NodeType::Symbol; }
void visitConstantUnion(TIntermConstantUnion *) override { nodeType = NodeType::ConstantUnion; }
void visitFunctionPrototype(TIntermFunctionPrototype *) override
{
nodeType = NodeType::FunctionPrototype;
}
void visitPreprocessorDirective(TIntermPreprocessorDirective *) override
{
nodeType = NodeType::PreprocessorDirective;
}
bool visitSwizzle(Visit, TIntermSwizzle *) override
{
nodeType = NodeType::Swizzle;
return false;
}
bool visitBinary(Visit, TIntermBinary *) override
{
nodeType = NodeType::Binary;
return false;
}
bool visitUnary(Visit, TIntermUnary *) override
{
nodeType = NodeType::Unary;
return false;
}
bool visitTernary(Visit, TIntermTernary *) override
{
nodeType = NodeType::Ternary;
return false;
}
bool visitIfElse(Visit, TIntermIfElse *) override
{
nodeType = NodeType::IfElse;
return false;
}
bool visitSwitch(Visit, TIntermSwitch *) override
{
nodeType = NodeType::Switch;
return false;
}
bool visitCase(Visit, TIntermCase *) override
{
nodeType = NodeType::Case;
return false;
}
bool visitFunctionDefinition(Visit, TIntermFunctionDefinition *) override
{
nodeType = NodeType::FunctionDefinition;
return false;
}
bool visitAggregate(Visit, TIntermAggregate *) override
{
nodeType = NodeType::Aggregate;
return false;
}
bool visitBlock(Visit, TIntermBlock *) override
{
nodeType = NodeType::Block;
return false;
}
bool visitGlobalQualifierDeclaration(Visit, TIntermGlobalQualifierDeclaration *) override
{
nodeType = NodeType::GlobalQualifierDeclaration;
return false;
}
bool visitDeclaration(Visit, TIntermDeclaration *) override
{
nodeType = NodeType::Declaration;
return false;
}
bool visitLoop(Visit, TIntermLoop *) override
{
nodeType = NodeType::Loop;
return false;
}
bool visitBranch(Visit, TIntermBranch *) override
{
nodeType = NodeType::Branch;
return false;
}
};
} // namespace sh
#endif // COMPILER_TRANSLATOR_TRANSLATORMETALDIRECT_NODETYPE_H_
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