dimgigov
d6f0a30948
- Array.bux, Channel.bux, Set.bux, Map.bux: add *_Drop<T> delegating to *_Free - hir_lower.bux: Lcx_BuildAutoDropFree searches for _Drop suffix instead of _Free - Skip direct lowering of generic functions (only monomorphized instances)
76 lines
1.8 KiB
Plaintext
76 lines
1.8 KiB
Plaintext
module Std::Set {
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extern func bux_hash_bytes(ptr: *void, size: uint) -> uint;
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extern func bux_mem_eq(a: *void, b: *void, size: uint) -> int;
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extern func bux_alloc(size: uint) -> *void;
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extern func bux_free(ptr: *void);
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struct SetEntry<T> {
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value: T,
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occupied: bool,
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}
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struct Set<T> {
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entries: *SetEntry<T>,
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cap: uint,
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len: uint,
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}
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func Set_New<T>(cap: uint) -> Set<T> {
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let total: uint = cap * sizeof(SetEntry<T>);
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let data: *SetEntry<T> = bux_alloc(total) as *SetEntry<T>;
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var i: uint = 0;
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while i < cap {
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data[i].occupied = false;
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i = i + 1;
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}
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return Set<T> { entries: data, cap: cap, len: 0 };
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}
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func Set_Add<T>(s: *Set<T>, value: T) {
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var valuePtr: *T = &value;
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let hash: uint = bux_hash_bytes(valuePtr as *void, sizeof(T));
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var idx: uint = hash % s.cap;
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while s.entries[idx].occupied {
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var entryPtr: *T = &s.entries[idx].value;
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if bux_mem_eq(entryPtr as *void, valuePtr as *void, sizeof(T)) != 0 {
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return;
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}
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idx = (idx + 1) % s.cap;
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}
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s.entries[idx].value = value;
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s.entries[idx].occupied = true;
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s.len = s.len + 1;
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}
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func Set_Has<T>(s: *Set<T>, value: T) -> bool {
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var valuePtr: *T = &value;
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let hash: uint = bux_hash_bytes(valuePtr as *void, sizeof(T));
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var idx: uint = hash % s.cap;
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while s.entries[idx].occupied {
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var entryPtr: *T = &s.entries[idx].value;
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if bux_mem_eq(entryPtr as *void, valuePtr as *void, sizeof(T)) != 0 {
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return true;
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}
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idx = (idx + 1) % s.cap;
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}
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return false;
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}
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func Set_Len<T>(s: *Set<T>) -> uint {
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return s.len;
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}
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func Set_Free<T>(s: *Set<T>) {
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bux_free(s.entries as *void);
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s.entries = null as *SetEntry<T>;
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s.cap = 0;
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s.len = 0;
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}
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func Set_Drop<T>(s: *Set<T>) {
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Set_Free<T>(s);
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}
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}
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