76       ParameterBlock* parameter_block = residual_block->parameter_blocks()[j];  in BuildJacobianLayout()  local
77       if (!parameter_block->IsConstant()) {  in BuildJacobianLayout()
80         if (parameter_block->index() < num_eliminate_blocks) {  in BuildJacobianLayout()
81           f_block_pos += num_residuals * parameter_block->LocalSize();  in BuildJacobianLayout()
104       ParameterBlock* parameter_block = residual_block->parameter_blocks()[j];  in BuildJacobianLayout()  local
105       const int parameter_block_index = parameter_block->index();  in BuildJacobianLayout()
106       if (parameter_block->IsConstant()) {  in BuildJacobianLayout()
110           num_residuals * parameter_block->LocalSize();  in BuildJacobianLayout()
191       const ParameterBlock* parameter_block =  in CreateJacobian()  local
193       if (!parameter_block->IsConstant()) {  in CreateJacobian()
195         cell.block_id = parameter_block->index();  in CreateJacobian()