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feat(stdlib)!: Add seededHash #2170

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feat(stdlib)!: Add seededHash #2170

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14d5489
feat(stdlib)!: Add seededHash
spotandjake Oct 4, 2024
5f395a4
chore: Add version history back to hash
spotandjake Oct 4, 2024
be7d875
feat: Use a type alias instead of record type.
spotandjake Oct 20, 2024
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86 changes: 53 additions & 33 deletions compiler/test/stdlib/hash.test.gr
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Original file line number Diff line number Diff line change
Expand Up @@ -48,17 +48,18 @@ let numbers = [
808,
909,
]
assert uniq(List.map(n => Hash.hash(n), numbers))

assert Hash.hash(42) == Hash.hash(42)
assert Hash.hash(0) == Hash.hash(0)
assert Hash.hash(100l) == Hash.hash(100l)
assert Hash.hash(100ul) == Hash.hash(100ul)
assert Hash.hash(100.0f) == Hash.hash(100.0f)
assert Hash.hash(100.0d) == Hash.hash(100.0d)
assert Hash.hash(100L) == Hash.hash(100L)
assert Hash.hash(100uL) == Hash.hash(100uL)
assert Hash.hash(2/3) == Hash.hash(2/3)
let globalInstance = Hash.make()
assert uniq(List.map(n => Hash.hash(globalInstance, n), numbers))

assert Hash.hash(globalInstance, 42) == Hash.hash(globalInstance, 42)
assert Hash.hash(globalInstance, 0) == Hash.hash(globalInstance, 0)
assert Hash.hash(globalInstance, 100l) == Hash.hash(globalInstance, 100l)
assert Hash.hash(globalInstance, 100ul) == Hash.hash(globalInstance, 100ul)
assert Hash.hash(globalInstance, 100.0f) == Hash.hash(globalInstance, 100.0f)
assert Hash.hash(globalInstance, 100.0d) == Hash.hash(globalInstance, 100.0d)
assert Hash.hash(globalInstance, 100L) == Hash.hash(globalInstance, 100L)
assert Hash.hash(globalInstance, 100uL) == Hash.hash(globalInstance, 100uL)
assert Hash.hash(globalInstance, 2/3) == Hash.hash(globalInstance, 2/3)

let strings = [
"",
Expand Down Expand Up @@ -95,17 +96,20 @@ let strings = [
"$",
"%",
]
assert uniq(List.map(n => Hash.hash(n), strings))
assert uniq(List.map(n => Hash.hash(globalInstance, n), strings))

assert Hash.hash("") == Hash.hash("")
assert Hash.hash("grain > ore > wool > lumber > brick") ==
Hash.hash("grain > ore > wool > lumber > brick")
assert Hash.hash(globalInstance, "") == Hash.hash(globalInstance, "")
assert Hash.hash(globalInstance, "grain > ore > wool > lumber > brick") ==
Hash.hash(globalInstance, "grain > ore > wool > lumber > brick")

let chars = String.explode("!@#$%^&*()1234567890-qwertyuiop🌾💯🔥😈😤💪🏼")
let charList = Array.toList(chars)

assert uniq(List.map(Hash.hash, charList))
Array.forEach(c => assert Hash.hash(c) == Hash.hash(c), chars)
assert uniq(List.map(e => Hash.hash(globalInstance, e), charList))
Array.forEach(
c => assert Hash.hash(globalInstance, c) == Hash.hash(globalInstance, c),
chars
)

enum rec Variants {
A,
Expand All @@ -128,11 +132,13 @@ let variants = [
E("dab"),
E("bad"),
]
assert uniq(List.map(n => Hash.hash(n), variants))
assert uniq(List.map(n => Hash.hash(globalInstance, n), variants))

assert Hash.hash(A) == Hash.hash(A)
assert Hash.hash(D(1, [A, B])) == Hash.hash(D(1, [A, B]))
assert Hash.hash(E("wasm")) == Hash.hash(E("wasm"))
assert Hash.hash(globalInstance, A) == Hash.hash(globalInstance, A)
assert Hash.hash(globalInstance, D(1, [A, B])) ==
Hash.hash(globalInstance, D(1, [A, B]))
assert Hash.hash(globalInstance, E("wasm")) ==
Hash.hash(globalInstance, E("wasm"))

let tuples = [
(1, A, ""),
Expand All @@ -142,10 +148,12 @@ let tuples = [
(12, B, "gr"),
(12, E("wasm"), "gr"),
]
assert uniq(List.map(n => Hash.hash(n), tuples))
assert uniq(List.map(n => Hash.hash(globalInstance, n), tuples))

assert Hash.hash((12, E("wasm"), "gr")) == Hash.hash((12, E("wasm"), "gr"))
assert Hash.hash((0, A, "")) == Hash.hash((0, A, ""))
assert Hash.hash(globalInstance, (12, E("wasm"), "gr")) ==
Hash.hash(globalInstance, (12, E("wasm"), "gr"))
assert Hash.hash(globalInstance, (0, A, "")) ==
Hash.hash(globalInstance, (0, A, ""))

record Rec {
num: Number,
Expand All @@ -161,12 +169,24 @@ let recs = [
{ num: 12, var: B, str: "gr" },
{ num: 12, var: E("wasm"), str: "gr" },
]
assert uniq(List.map(n => Hash.hash(n), recs))

assert Hash.hash({ num: 12, var: E("wasm"), str: "gr" }) ==
Hash.hash({ num: 12, var: E("wasm"), str: "gr" })
assert Hash.hash({ num: 0, var: A, str: "" }) ==
Hash.hash({ num: 0, var: A, str: "" })

assert Hash.hash(Bytes.fromString("foo")) == Hash.hash(Bytes.fromString("foo"))
assert Hash.hash(Bytes.fromString("foo")) != Hash.hash(Bytes.fromString("bar"))
assert uniq(List.map(n => Hash.hash(globalInstance, n), recs))

assert Hash.hash(globalInstance, { num: 12, var: E("wasm"), str: "gr" }) ==
Hash.hash(globalInstance, { num: 12, var: E("wasm"), str: "gr" })
assert Hash.hash(globalInstance, { num: 0, var: A, str: "" }) ==
Hash.hash(globalInstance, { num: 0, var: A, str: "" })

assert Hash.hash(globalInstance, Bytes.fromString("foo")) ==
Hash.hash(globalInstance, Bytes.fromString("foo"))
assert Hash.hash(globalInstance, Bytes.fromString("foo")) !=
Hash.hash(globalInstance, Bytes.fromString("bar"))

// hashInstance tests
let globalInstance1 = Hash.make()
let globalInstance2 = Hash.make() // uses a global seed generated at runtime, Hash.make is the same
assert Hash.hash(globalInstance1, 42) == Hash.hash(globalInstance1, 42)
let seededInstance1 = Hash.makeSeeded(1)
assert Hash.hash(seededInstance1, 32) == Hash.hash(seededInstance1, 32)
assert Hash.hash(seededInstance1, 32) != Hash.hash(seededInstance1, 31)
let seededInstance2 = Hash.makeSeeded(2)
assert Hash.hash(seededInstance1, 30) != Hash.hash(seededInstance2, 30)
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