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java.time Phase 1: LocalDate/LocalTime/LocalDateTime/Instant

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Core java.time value types as jolt host objects backed by the inst-time.ss
calendar engine (days-from-civil/civil-from-days/inst-fields/format-ms), in a
new host/chez/java-time.ss. tz-free reps: LocalDate=epoch-day,
LocalTime=nano-of-day, LocalDateTime=(epoch-day,nano-of-day); Instant reuses
the ms-based instant jhost (ms granularity; nano is a documented gap). Each
type registers statics (of/parse/now/MIN/MAX/...), instance methods
(plus/minus/with/get/isBefore/until/toString/...), =/hash, compare,
ISO-8601 print, instance?, and value-host-tags for protocol dispatch.

Reconciles the old ms-based local-date/local-dt stubs into the rich types
(LocalDateTime now prints ISO; .toLocalDate/.atZone paths preserved). The
four cljc.java-time namespaces (local-date/local-time/local-date-time/instant)
load. Deep temporal-field/unit machinery (range/get-long/with-field/until/
adjust-into) stubbed for Phase 2.

12 corpus rows certified vs JVM 1.12.5. make test + shakesmoke green, 0 new
divergences, data.json stays 138/139, selfhost holds.
This commit is contained in:
Yogthos 2026-06-24 17:44:32 -04:00
parent e94ddb2ffe
commit c0561a8d14
5 changed files with 560 additions and 11 deletions
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12
test/chez/corpus.edn
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@ -2999,4 +2999,16 @@
{:suite "interop / numbers & classes" :label "instance? PushbackReader" :expected "true" :actual "(instance? java.io.PushbackReader (java.io.PushbackReader. (java.io.StringReader. \"x\")))"}
{:suite "interop / numbers & classes" :label "EOFException catch by class" :expected "\"boom\"" :actual "(try (throw (java.io.EOFException. \"boom\")) (catch java.io.EOFException e (.getMessage e)))"}
{:suite "interop / numbers & classes" :label "Reader.read into char[]" :expected "[4 \"abcd\"]" :actual "(let [r (java.io.StringReader. \"abcd\") b (char-array 4)] (let [n (.read r b 0 4)] [n (String. b 0 n)]))"}
{:suite "interop / java.time" :label "LocalDate toString" :expected "\"2020-01-15\"" :actual "(str (java.time.LocalDate/of 2020 1 15))"}
{:suite "interop / java.time" :label "LocalDate plusDays over leap day" :expected "\"2020-02-29\"" :actual "(str (.plusDays (java.time.LocalDate/of 2020 2 28) 1))"}
{:suite "interop / java.time" :label "LocalDate equality" :expected "true" :actual "(= (java.time.LocalDate/of 2020 1 15) (java.time.LocalDate/of 2020 1 15))"}
{:suite "interop / java.time" :label "LocalDate compare" :expected "-1" :actual "(compare (java.time.LocalDate/of 2020 1 15) (java.time.LocalDate/of 2020 1 16))"}
{:suite "interop / java.time" :label "LocalDate ofEpochDay round-trip" :expected "1" :actual "(.toEpochDay (java.time.LocalDate/of 1970 1 2))"}
{:suite "interop / java.time" :label "LocalDate parse" :expected "\"2020-01-15\"" :actual "(str (java.time.LocalDate/parse \"2020-01-15\"))"}
{:suite "interop / java.time" :label "LocalDate getDayOfWeek name" :expected "\"WEDNESDAY\"" :actual "(.name (.getDayOfWeek (java.time.LocalDate/of 2020 1 15)))"}
{:suite "interop / java.time" :label "LocalTime toString" :expected "\"10:30:15\"" :actual "(str (java.time.LocalTime/of 10 30 15))"}
{:suite "interop / java.time" :label "LocalTime plusHours wraps midnight" :expected "\"01:30\"" :actual "(str (.plusHours (java.time.LocalTime/of 23 30) 2))"}
{:suite "interop / java.time" :label "LocalDateTime toString" :expected "\"2020-01-15T10:30\"" :actual "(str (java.time.LocalDateTime/of 2020 1 15 10 30 0))"}
{:suite "interop / java.time" :label "Instant ofEpochMilli toString" :expected "\"2020-01-15T10:30:00Z\"" :actual "(str (java.time.Instant/ofEpochMilli 1579084200000))"}
{:suite "interop / java.time" :label "Instant ofEpochMilli round-trip" :expected "1579084200000" :actual "(.toEpochMilli (java.time.Instant/ofEpochMilli 1579084200000))"}
]