id: parameter
label: Parameter
flags: [ show_id, python, cpp ]

parameters:
-   id: label
    label: Label
    dtype: string
    hide: ${ ('none' if label else 'part') }
-   id: type
    label: Type
    dtype: enum
    options: ['', complex, eng_float, intx, long, str]
    option_labels: [None, Complex, Float, Int, Long, String]
    option_attributes:
        type: [raw, complex, real, int, int, string]
    hide: ${ ('none' if type else 'part') }
-   id: value
    label: Value
    dtype: ${ type.type }
    default: '0'
-   id: short_id
    label: Short ID
    dtype: string
    hide: ${ 'all' if not type else ('none' if short_id else 'part') }
-   id: hide
    label: Show
    dtype: enum
    options: [none, part]
    option_labels: [Always, Only in Properties]
    hide: part

asserts:
- ${ len(short_id) in (0, 1) }
- ${ short_id == '' or short_id.isalpha() }

templates:
    var_make: self.${id} = ${id}
    make: ${value}

cpp_templates:
    var_make: ${id} = ${value};
    make: ${value}

documentation: |-
    This block represents a parameter to the flow graph. A parameter can be used to pass command line arguments into a top block. Or, parameters can pass arguments into an instantiated hierarchical block.

    The parameter value cannot depend on any variables.

    Leave the label blank to use the parameter id as the label.

    When type is not None, this parameter also becomes a command line option of the form:

    -[short_id] --[id] [value]

    The Short ID field may be left blank.

    To disable showing the parameter on the hierarchical block in GRC, use Only in Properties option in the Show field.

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