Application Context Implementation #4
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@ -56,16 +56,18 @@ pub fn Hashed(comptime Key: type, comptime Value: type,
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}
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///
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/// Searches for `key` to delete it, returning the deleted value or `null` if no matching
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/// key was found.
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/// Searches for `key` and deletes it from `self.
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///
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pub fn remove(self: Self, key: Key) ?Value {
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/// The removed value is returned or `null` if no key matching `key` was found.
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///
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pub fn remove(self: *Self, key: Key) ?Value {
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var bucket = &(self.buckets[@mod(key_context.hash(key), self.buckets.len)]);
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if (bucket.maybe_entry) |*entry| if (key_context.equals(entry.key, key)) {
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defer entry.value = null;
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defer {
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bucket.maybe_entry = null;
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self.filled -= 1;
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}
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return entry.value;
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};
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@ -74,9 +76,10 @@ pub fn Hashed(comptime Key: type, comptime Value: type,
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bucket = &(self.buckets[index]);
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if (bucket.maybe_entry) |*entry| if (key_context.equals(entry.key, key)) {
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defer entry.value = null;
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defer {
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bucket.maybe_entry = null;
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self.filled -= 1;
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}
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return entry.value;
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};
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@ -129,20 +132,21 @@ pub fn Hashed(comptime Key: type, comptime Value: type,
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}
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///
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/// Searches for a value indexed with `key` in `self`, returning it or `null` if no matching
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/// entry was found.
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/// Searches for a value indexed with `key` in `self`.
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///
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pub fn lookup(self: Self, key: Key) ?*Value {
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/// The found value is returned or `null` if an key matching `key` failed to be found.
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///
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pub fn lookup(self: Self, key: Key) ?Value {
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var bucket = &(self.buckets[@mod(key_context.hash(key), self.buckets.len)]);
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if (bucket.maybe_entry) |*entry|
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if (key_context.equals(entry.key, key)) return &entry.value;
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if (bucket.maybe_entry) |entry|
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if (key_context.equals(entry.key, key)) return entry.value;
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while (bucket.maybe_next_index) |index| {
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bucket = &(self.buckets[index]);
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if (bucket.maybe_entry) |*entry|
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if (key_context.equals(entry.key, key)) return &entry.value;
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if (bucket.maybe_entry) |entry|
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if (key_context.equals(entry.key, key)) return entry.value;
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}
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return null;
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