4.12 Map Configurations

9.0.0.3

4.12 Map Configurations🔗ℹ

definition

key_comp.def 'op_or_id_name':

ref_by_clause

...

ref_by_clause

~equals: equals_func_expr

~hash_code: hash_code_func_expr

Defines op_or_id_name as a map configuration like === and for use with forms like Map.by and Set.by.

The result of equals_func_expr should be a function that takes three arguments: two values to compare, and a function to use for recursive comparison.

The result of hash_code_func_expr should be a function that takes two arguments: the value to hash, and a function to use for recursive hashing.

1	Meta Definitions and Expressions
2	Spaces
3	General Spaces and Macros
4	Form-Specific Macros
5	Syntax Objects
6	Operator Orders
7	Documentation Metadata
8	Languages and Modules

4.1	Import Macros
4.2	Export Macros
4.3	For Clause Macros
4.4	Sequence Macros
4.5	Reducer Macros
4.6	Class, Interface, and Veneer Clause Macros
4.7	Unquote Binding Macros
4.8	Syntax Class Clause Macros
4.9	Syntax Pattern Clause Macros
4.10	Entry Point Macros
4.11	Immediate Callee Macros
4.12	Map Configurations