File bindings/s2/unit/600-000-hash.s2 artifact fdf734dacf part of check-in 9c1abb2e95

const Hash = s2.Hash.new;

scope {
  var h = Hash();
  assert h inherits s2.Hash;
  var tableSize = h.hashSize();
  assert 'integer' === typename tableSize;
  assert tableSize > 0;
  unset tableSize;
  assert 0 === h.entryCount();

  h.insert(1,-1.0);
  assert 1 === h.entryCount();
  assert -1.0 === h.search(1);
  h.insert(0,1.0);
  var c = 0;
  h.eachEntry(function(k,v){
    assert 'integer' === typename k;
    assert 'double' === typename v;
    c = c + 1;
  });
  assert h.entryCount() === c;

  assert h.containsEntry(1);
  assert !h.containsEntry(2);

  var keys = h.entryKeys(), vals = h.entryValues();
  assert 'array' === typename keys;
  assert 'array' === typename vals;
  assert vals.length() == c;
  assert keys.length() == c;
  unset keys, vals;

  h.remove(-1);
  assert 2 === h.entryCount();
  h.insert(1, 0.0);
  assert 2 === h.entryCount();
  h.remove(1);
  assert 1 === h.entryCount();
  h.clearEntries();
  assert 0 === h.entryCount();
}

scope {
    var h1 = s2.Hash.new(11), h2 = s2.Hash.new(23);
    h1.insert(1, 2);
    h1.insert(2, 3);
    h1.eachEntry(h2, h2.insert);
    assert 2 === h2.entryCount();
    h1.clearEntries();
    assert !h1.entryCount();
    h2.eachEntry(h1);
    assert 2 === h1.entryCount();

    var o = {};
    h1.eachEntry(o, o.set);
    assert 3 === o.2;
    assert 2 === o.1;

    h2.clearEntries();
    h1.eachEntry(h2);
    assert 2 === h2.entryCount();
    assert 3 === h2.search(2);
    assert 2 === h2.search(1);

    h1.insert('f', proc f(){
        assert f === this;
        return this;
    });

    assert h1#'f' === (h1#'f')();
    assert h1#'f' === h1#'f'();
}

scope {
    var h = s2.Hash.new(11);
    assert !h.hasEntries();
    assert 11 === h.hashSize();
    h.insert(1, 2);
    assert h.hasEntries();
    h.insert(3, 4);
    assert 2 === h.entryCount();
    h.resize(3);
    assert 3 === h.hashSize();
    assert 4 === h # 3;
    assert 2 === h # 1;
    assert 2 === h.entryCount();
    assert h.hasEntries();
    assert 'CWAL_RC_RANGE' === catch{h.resize(-1)}.codeString();
    assert 'CWAL_RC_MISUSE' === catch{h.resize()}.codeString();
}

if(s2.getResultCodeHash){
    const rch = s2.getResultCodeHash();
    assert rch.entryCount() > 90 /* === 102 as of this writing */;
    assert rch === s2.getResultCodeHash() /* result is cached */;
    assert 'integer' === typename rch # 'CWAL_RC_OOM';
    assert 'string' === typename rch # 0 /* the only code with a well-defined value! */;
}

scope { /* takeProperties() */

    var src, h;
    const reset = proc(){
        src = {a:1, b:-1, c:0};
        h = s2.Hash.new(5);
    };
    reset();
    h.insert('a', 'aaaa');
    h.takeProperties(src,1);
    assert 1 === h # 'a';
    assert undefined === src.a;
    assert undefined === src.b;
    assert undefined === src.c;
    assert(src.isEmpty());

    reset();
    h.insert('a', 'aaaa');
    h.takeProperties(src,-1);
    assert 'aaaa' === h # 'a';
    assert 1 === src.a;
    assert undefined === src.b;
    assert undefined === src.c;
    assert(!src.isEmpty());

    reset();
    h.insert('a', 'aaaa');
    const ex = catch h.takeProperties(src,0);
    assert ex;
    assert 'CWAL_RC_ALREADY_EXISTS' === ex.codeString();
    assert 1 === src.a;
    /* src.b and src.c might have been moved already:
       internal order is undefined and mutable
       at runtime. */
    assert !src.isEmpty();
}

assert 999 === scope {
    /*
      testing fix:

      https://fossil.wanderinghorse.net/r/cwal/info/5041ab1deee33194

      If it's broken, this will crash if built in debug mode,
      triggering a cwal-level assertion, possibly a different one
      depending on the type of the scope result value's type.
    */
    {#a: 999}#'a'
};

scope {
    /** 2020-02-06: dot-length operator (lhs.#) now, on hashes,
        resolves to the number of hash entries. */
    assert 3 === {# a:1, b:1, c:1}.#;
}
scope {
    /* 2020-02-18: {#x:=y} assigns x as a const hash entry */
    const h = {# a:1, b:=2};
    assert 1 === h#'a';
    assert 2 === h#'b';
    assert 3 === h.insert('a',3);
    assert 'CWAL_RC_CONST_VIOLATION' === catch h.insert('b',1).codeString();
    assert 2 === h.#;
    assert 2 === foreach(#h=>k,v) 'b'===k && break v;
}

scope {
    /** 2020-02-20: inline expansion of object properties into an
        object literal, similar to JS's {...otherObj}. This is
        currently explicitly disallowed for hash literals because of
        potential semantic ambiguities in handling of hash vs. object
        properties.
    */
    const ex = catch{ {#@{a:1}} };
    assert 'CWAL_RC_TYPE' === ex.codeString();
    assert ex.message.indexOf('hash literal') > 0;
}