rename RAD_TypeHashAlg; extend /RAD_DEBUG_TYPE_HASH with XXHASH option

src/linker/lnk_hasher.c

@@ -0,0 +1,60 @@
+// Copyright (c) Epic Games Tools
+// Licensed under the MIT license (https://opensource.org/license/mit/)
+
+internal void
+lnk_hasher_init(LNK_Hasher *hasher, LNK_HashKind kind)
+{
+  hasher->kind = kind;
+  switch (kind) {
+  case LNK_HashKind_BLAKE3: blake3_hasher_init(&hasher->u.blake3); break;
+  case LNK_HashKind_XXHash: XXH3_64bits_reset(&hasher->u.xxhash); break;
+  default: InvalidPath; break;
+  }
+}
+
+internal void
+lnk_hasher_update(LNK_Hasher *hasher, void *data, U64 size)
+{
+  switch (hasher->kind) {
+  case LNK_HashKind_BLAKE3: blake3_hasher_update(&hasher->u.blake3, data, size); break;
+  case LNK_HashKind_XXHash: XXH3_64bits_update(&hasher->u.xxhash, data, size); break;
+  default: InvalidPath; break;
+  }
+}
+
+internal U64
+lnk_hasher_digest(LNK_Hasher *hasher)
+{
+  U64 hash = 0;
+  switch (hasher->kind) {
+  case LNK_HashKind_BLAKE3: blake3_hasher_finalize(&hasher->u.blake3, (U8 *)&hash, sizeof(hash)); break;
+  case LNK_HashKind_XXHash: hash = XXH3_64bits_digest(&hasher->u.xxhash); break;
+  default: InvalidPath; break;
+  }
+  return hash;
+}
+
+internal String8
+lnk_string_hash_kind(LNK_HashKind hash_kind)
+{
+#define X(NAME) case LNK_HashKind_##NAME: return str8_lit(Stringify(NAME));
+  switch (hash_kind) {
+    LNK_HashKind_XList
+  }
+#undef X
+  return str8_zero();
+}
+
+internal LNK_HashKind
+lnk_hash_kind_from_llvm(LLVM_GHashAlgEnum v)
+{
+  switch (v) {
+  case LLVM_GHashAlg_SHA1:
+  case LLVM_GHashAlg_SHA1_8:
+    return LNK_HashKind_Null;
+  case LLVM_GHashAlg_BLAKE3:
+    return LNK_HashKind_BLAKE3;
+  }
+  return LNK_HashKind_Null;
+}
+