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Add variable reference and use them in alias(ref, id)

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Étienne Fildadut 2021-12-09 14:11:18 +01:00
parent 037654ebcf
commit acb8945dec
11 changed files with 138 additions and 45 deletions
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14
REFERENCE.md
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@ -534,6 +534,8 @@ Default types are:
* `function reference`: reference to one or more function(s) with a given name. Can be defined using `&function name`, which will create a reference to every function with this name accessible from the current namespace. Can be called as if it was the original function using `func ref!` and `func ref(args)`.
* `variable reference`: reference to a single variable with a given name. Can be defined using `&variable name`, which will create a reference to the closest variable with this name accessible from the current namespace. Can get the referenced variable value using `var ref!`.
* `list`: a list of values. Mutable. Types can be mixed. Can be defined between square brackets and use comma as a separator '[1,2,3,4]'.
Every type is immutable, except `list`.
@ -835,7 +837,7 @@ This only works on strings:
`a | b`: or operator, lazy
##### Functions
##### Functions and function references
`fn(args)`: call the function, checkpoint or function reference with the given arguments.
@ -845,6 +847,12 @@ This only works on strings:
`a!fn(args)`: call the function or function reference with the variable as first argument. Parantheses are optional.
##### Variable references
`&var`: returns a variable reference to the given variable.
`a!`: returns the value associated with the reference variable.
##### Various
`a ; b`: evaluate a, discard its result, then evaluate b. Returns the result of b.
@ -891,7 +899,7 @@ This only works on strings:
##### Various
`alias(identifier::string, alias::string)`: define an alias `alias` for variable `identifier`. Expect fully qualified names.
`alias(ref::reference, alias::string)`: define an alias `alias` for the variable or function referenced by `ref`. Expect fully qualified names for the alias.
`rand([m[, n]])`: when called whitout arguments, returns a random float in [0,1). Otherwise, returns a random number in [m,n]; m=1 if not given.
@ -903,7 +911,7 @@ This only works on strings:
#### Built-in variables
Variables for default types (each is associated to a string of the internal variable type name): `nil`, `number`, `string`, `list`, `pair`, `function reference`.
Variables for default types (each is associated to a string of the internal variable type name): `nil`, `number`, `string`, `list`, `pair`, `function reference`, `variable reference`.
#### Built-in languages