module.Call

Call executes a template function by name with the provided arguments. The function must have been exported by the module that provides it through the [Export] function.

Attempting to call a function that does not exist will return an error outside of the first pass where it will return nil instead.

The template that is called must return a value using the return template function, which is only available in this context.

In addition, all of the file, stencil and other functions are in the context of the parent template, not the template being called.

. in a template function acts the same way as it does for TplStencil.ApplyTemplate (stencil.ApplyTemplate). Meaning, it points to Values. The caller passed data is accessible on .Data.

Example:

// module-a
{{- define "HelloWorld" }}
{{- return (printf "Hello, %s!" .Data) }}
{{- end }}
{{ module.Export "HelloWorld" }}

// module-b
{{ module.Call "module-b.HelloWorld" "Jared" }}
// Output: Hello, Jared