Template Library Parameters

Template libraries can also set their own interface parameters. Template library parameters are used as global variables in the template library code.

For example, we set a template library parameter:

Parameters of a Rust template are constants that can only be read, not modified, so in Rust the example below can only read the parameter:

            rust
            
            
// template code
pub fn GetParam1() -> f64 {
    Log!("param1:", param1);
    param1
}

            rust
            
            
// strategy code
fn main() {
    Log!("Calling ext::GetParam1:", ext::GetParam1());
}

Examples

• Template library code for testing the param1 parameter:

  • javascript
  • python
  • rust

  
      javascript
      
      
  $.SetParam1 = function(p1) {
      param1 = p1
  }
  
  $.GetParam1 = function() {
      Log("param1:", param1)
      return param1
  }

  
      python
      
      
  def SetParam1(p1):
      global param1
      param1 = p1
  
  def GetParam1():
      Log("param1:", param1)
      return param1
  
  ext.SetParam1 = SetParam1
  ext.GetParam1 = GetParam1

  
      rust
      
      
  // Rust template parameters are read-only constants; see above for how to read them
  

• Strategy code referencing the above template library example, using the template library's exported functions to get parameter param1 and modify parameter param1.

  • javascript
  • python
  • rust

  
      javascript
      
      
  function main () {
      Log("Calling $.GetParam1:", $.GetParam1())
      Log("Calling $.SetParam1:", "#FF0000")
      $.SetParam1(20)
      Log("Calling $.GetParam1:", $.GetParam1())
  }

  
      python
      
      
  def main():
      Log("Calling ext.GetParam1:", ext.GetParam1())
      Log("Calling ext.SetParam1:", "#FF0000")
      ext.SetParam1(20)
      Log("Calling ext.GetParam1:", ext.GetParam1())
  

  
      rust
      
      
  // Rust template parameters are read-only constants; see above for how to read them