Shader: Cleanup and rename AST files

src/Nazara/Shader/Ast/AstUtils.cpp

@@ -0,0 +1,79 @@
+// Copyright (C) 2020 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Shader generator"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Shader/Ast/AstUtils.hpp>
+#include <Nazara/Shader/Debug.hpp>
+
+namespace Nz::ShaderAst
+{
+	ExpressionCategory ShaderAstValueCategory::GetExpressionCategory(Expression& expression)
+	{
+		expression.Visit(*this);
+		return m_expressionCategory;
+	}
+
+	void ShaderAstValueCategory::Visit(AccessMemberIdentifierExpression& node)
+	{
+		node.structExpr->Visit(*this);
+	}
+
+	void ShaderAstValueCategory::Visit(AccessMemberIndexExpression& node)
+	{
+		node.structExpr->Visit(*this);
+	}
+
+	void ShaderAstValueCategory::Visit(AssignExpression& /*node*/)
+	{
+		m_expressionCategory = ExpressionCategory::RValue;
+	}
+
+	void ShaderAstValueCategory::Visit(BinaryExpression& /*node*/)
+	{
+		m_expressionCategory = ExpressionCategory::RValue;
+	}
+
+	void ShaderAstValueCategory::Visit(CastExpression& /*node*/)
+	{
+		m_expressionCategory = ExpressionCategory::RValue;
+	}
+
+	void ShaderAstValueCategory::Visit(ConditionalExpression& node)
+	{
+		node.truePath->Visit(*this);
+		ExpressionCategory trueExprCategory = m_expressionCategory;
+
+		node.falsePath->Visit(*this);
+		ExpressionCategory falseExprCategory = m_expressionCategory;
+
+		if (trueExprCategory == ExpressionCategory::RValue || falseExprCategory == ExpressionCategory::RValue)
+			m_expressionCategory = ExpressionCategory::RValue;
+		else
+			m_expressionCategory = ExpressionCategory::LValue;
+	}
+
+	void ShaderAstValueCategory::Visit(ConstantExpression& /*node*/)
+	{
+		m_expressionCategory = ExpressionCategory::RValue;
+	}
+
+	void ShaderAstValueCategory::Visit(IdentifierExpression& /*node*/)
+	{
+		m_expressionCategory = ExpressionCategory::LValue;
+	}
+
+	void ShaderAstValueCategory::Visit(IntrinsicExpression& /*node*/)
+	{
+		m_expressionCategory = ExpressionCategory::RValue;
+	}
+
+	void ShaderAstValueCategory::Visit(SwizzleExpression& node)
+	{
+		node.expression->Visit(*this);
+	}
+
+	void ShaderAstValueCategory::Visit(VariableExpression& node)
+	{
+		m_expressionCategory = ExpressionCategory::LValue;
+	}
+}