Variable Declaration

New variable bindings are introduced at the current namespace level by:

• Use of the assignment operator =. (Special handling for LHS tuples, chained assignment or const assignment of a parameterised typealias).
• DataType declarations struct, mutable struct, abstract type, primitive type and their deprecated syntaxes.
• function and macro declarations.
• module/baremodule declarations.
• using, import or importall calls.

New intra-expression bindings are introduced by:

• Arguments of a function/macro declaration.
• Parameterisations of a function or DataType declaration using the where syntax.
• Iterators of a for loop or comprehension/generator.
• Arguments of a do block.
• Arguments of a let block.
• Arguments of an anonymous function.
• The caught error of a try-catch block.