Module map_ops 

Map operations for Seq

Dictionary/hash map operations with O(1) lookup. Maps use hashable keys (Int, String, Bool) and can store any Value.

Examples

# Create empty map and add entries
make-map "name" "Alice" map-set "age" 30 map-set

# Get value by key
my-map "name" map-get  # -> "Alice"

# Check if key exists
my-map "email" map-has?  # -> 0 (false)

# Get keys/values as lists
my-map map-keys    # -> ["name", "age"]
my-map map-values  # -> ["Alice", 30]

Panic Behavior

• Operations panic on invalid key types (Float, Variant, Quotation, etc.)
• map-get panics if key not found (use map-get-safe for error handling)
• Type errors (e.g., calling map operations on non-Map values) cause panics

Performance Notes

• Operations use functional style: map-set and map-remove return new maps
• Each mutation clones the underlying HashMap (O(n) for n entries)
• For small maps (<100 entries), this is typically fast enough
• Key/value iteration order is not guaranteed (HashMap iteration order)

Re-exports

pub use patch_seq_make_map as make_map;

pub use patch_seq_map_empty as map_empty;

pub use patch_seq_map_get as map_get;

pub use patch_seq_map_get_safe as map_get_safe;

pub use patch_seq_map_has as map_has;

pub use patch_seq_map_keys as map_keys;

pub use patch_seq_map_remove as map_remove;

pub use patch_seq_map_set as map_set;

pub use patch_seq_map_size as map_size;

pub use patch_seq_map_values as map_values;

Functions

patch_seq_make_map^⚠

Create an empty map

patch_seq_map_empty^⚠

Check if the map is empty

patch_seq_map_get^⚠

Get a value from the map by key

patch_seq_map_get_safe^⚠

Get a value from the map by key, with error handling

patch_seq_map_has^⚠

Check if a key exists in the map

patch_seq_map_keys^⚠

Get all keys from the map as a list

patch_seq_map_remove^⚠

Remove a key from the map (functional style)

patch_seq_map_set^⚠

Set a key-value pair in the map (functional style)

patch_seq_map_size^⚠

Get the number of entries in the map

patch_seq_map_values^⚠

Get all values from the map as a list