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add pos-int? nat-int? and neg-int? #755

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Merged
merged 3 commits into from
Oct 30, 2025
Merged

add pos-int? nat-int? and neg-int? #755

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2b1ec4a
core.js: add `pos-int?`, `nat-int?` and `neg-int?`
eNotchy Oct 30, 2025
b544dcc
compiler_test.cljs: add tests for `pos-int?` `nat-int?` and `neg-int?`
eNotchy Oct 30, 2025
597163d
fixed tests for `pos-int?` and `neg-int?`
eNotchy Oct 30, 2025
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12 changes: 12 additions & 0 deletions src/squint/core.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2472,6 +2472,18 @@ export function int_QMARK_(x) {

export const integer_QMARK_ = int_QMARK_;

export function pos_int_QMARK_(x) {
return typeof x == 'number' && Number.isInteger(x) && x > 0;
}

export function nat_int_QMARK_(x) {
return typeof x == 'number' && Number.isInteger(x) && x > -1;
}

export function neg_int_QMARK_(x) {
return typeof x == 'number' && Number.isInteger(x) && x < 0;
}

const _metaSym = Symbol('meta');

export function meta(x) {
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24 changes: 24 additions & 0 deletions test/squint/compiler_test.cljs
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Expand Up @@ -209,6 +209,30 @@
(is (not (str/includes? (jss! "(if (zero? x) 1 2)") "truth_")))
(is (false? (jsv! "(zero? \"0\")"))))

(deftest pos-int?-test
(is (true? (jsv! "(pos-int? 100)")))
(is (false? (jsv! "(pos-int? 0)")))
(is (false? (jsv! "(pos-int? -4)")))
(is (false? (jsv! "(pos-int? 0.3)")))
(is (false? (jsv! "(pos-int? :some-keyword)")))
(is (false? (jsv! "(pos-int? [4])"))))

(deftest nat-int?-test
(is (true? (jsv! "(nat-int? 100)")))
(is (true? (jsv! "(nat-int? 0)")))
(is (false? (jsv! "(nat-int? -4)")))
(is (false? (jsv! "(nat-int? 0.3)")))
(is (false? (jsv! "(nat-int? :some-keyword)")))
(is (false? (jsv! "(nat-int? [4])"))))

(deftest neg-int?-test
(is (false? (jsv! "(neg-int? 100)")))
(is (false? (jsv! "(neg-int? 0)")))
(is (true? (jsv! "(neg-int? -4)")))
(is (false? (jsv! "(neg-int? 0.3)")))
(is (false? (jsv! "(neg-int? :some-keyword)")))
(is (false? (jsv! "(neg-int? [-4])"))))

(deftest no-truth-check-test
(let [inputs ["(if (zero? 0) 1 2)" "(when (< 1 2) 1)"
#_"(when (= 1 1) 1)"
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