Orkuncakilkaya
2002e977d9
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Add `long`, a 64-bit signed integer primitive (i64), threaded through codegen: llty; int<->long coercion (coerce_code/to_long) at let/assign/ return/call-args; i64 arithmetic + comparison promotion in emit_bin; unary negate/~; print via %lld and str()/interpolation via @fn_long_str. Editor vocabulary (syntax header, TextMate grammar, formatter, LSP) synced; check-vocabulary green. Numeric literals stay i32 — build large values by widening (documented on the type page). Complete the Hash.* namespace (issue #17) with both 32- and 64-bit algorithms: Hash.of/fnv1a/crc32/mix/combine (32-bit) and Hash.of64/fnv1a_64/mix64 (64-bit, returning long). Deterministic and C-free; CRC-32 (poly 0xEDB88320) and FNV vectors verified against reference implementations. Tests: selfhost/tests/{hash,long}.ludic. Docs: docs/language/hash/*, type-long.md. Seed reseeded; C-free bootstrap fixpoint holds; 23 selfhost + 45 regression + 29 tooling checks green. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
28 lines
970 B
Markdown
28 lines
970 B
Markdown
---
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id: hash-of
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name: Hash.of
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category: hash
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kind: namespace-method
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tokens: Hash.of
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sig: Hash.of(s) -> int
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tip: The fast default string hash.
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order: 1
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ns: Hash
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member: of
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---
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The go-to hash for a string: turns text like <code>"grass_tile"</code> into a fast, stable 32-bit integer handle. <code>Hash.of</code> is the default when you don't care which algorithm is used — currently it is <a href="hash-fnv1a"><code>Hash.fnv1a</code></a>, FNV-1a over the bytes. Reach for it to key a lookup table by name, give content a compact id, or detect that a config string changed. The result is deterministic: the same string always produces the same value, on every platform and run. It is not for security — see the section note.
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Parameters:
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- `s` — the string to hash
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```ludic
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program TileIds {
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entry {
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let grass = Hash.of("grass_tile") # a stable integer id for this tile name
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let water = Hash.of("water_tile")
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print(grass)
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print(water)
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}
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}
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```
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