Function EvaluateInitializer

shadercompiler/FXAnalyzer.cpp:474–532

}

bool EvaluateInitializer( ParserState& state, ASTNode* node, Type& type, ExpressionValue& value, StateValue* stateValues )
{
	type.symbol = nullptr;
	if( node->GetNodeType() == NT_INLINE_CONSTRUCTOR )
	{
		int elements = type.width * type.height;

		for( unsigned i = 0; i < node->GetChildrenCount(); ++i )
		{
			Type childType;
			ExpressionValue childValue;
			if( !EvaluateExpression( state, node->GetChild( i ), childType, childValue, stateValues ) )
			{
				return false;
			}

			Type newChildType = childType;
			newChildType.builtInType = type.builtInType;
			if( !CastExpressionValue( childValue, childType, newChildType ) )
			{
				state.ShowMessage( node->GetToken()->fileLocation, EC_INVALID_IMPLICIT_CAST );
				return false;
			}

			for( int j = 0; j < childType.width * childType.height; ++j )
			{
				value.push_back( childValue[j] );
				if( elements == 0 )
				{
					state.ShowMessage( node->GetToken()->fileLocation, EC_INCORRECT_NUMBER_OF_ARGS );
					return false;
				}
				elements--;
			}
		}
		if( elements > 0 )
		{
			state.ShowMessage( node->GetToken()->fileLocation, EC_INCORRECT_NUMBER_OF_ARGS );
			return false;
		}
	}
	else
	{
		Type exprType;
		if( !EvaluateExpression( state, node, exprType, value, stateValues ) )
		{
			return false;
		}
		if( exprType != type )
		{
			if( !CastExpressionValue( value, exprType, type ) )
			{
				state.ShowMessage( node->GetLocation(), EC_TYPE_MISMATCH );
				return false;
			}
		}
	}
	return true;