3.4 Qualified notation

Global variables can be referenced using implicit notation or using qualified notation. Implicit notation is used when variables are referenced just by their name whereas qualified notation is used when variables are referenced by their name and the name of the module which defines them. Qualified notation has the following syntax:

(@ <bind-name> <module-name>)

and is useful when several imported modules export a variable with the same name. Using qualified notations instead of short notation only affects compilation.

When several variables are defined under the same identifier, the compiler uses the two following rules in order to decide which variable is selected by an implicit reference: 1) the variable defined in a module has a higher precedence than all imported variables, 2) imported variables have a higher precedence than library variables.

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