1 files changed, 110 insertions, 0 deletions

diff --git a/spec/inputs/test/param_destructure_spec.yue b/spec/inputs/test/param_destructure_spec.yue
new file mode 100644
index 0000000..4659031
--- /dev/null
+++ b/spec/inputs/test/param_destructure_spec.yue
@@ -0,0 +1,110 @@
+describe "parameter destructuring", ->
+        it "should destructure simple object", ->
+                f = (:a, :b, :c) ->
+                        {a, b, c}
+
+                result = f a: 1, b: "2", c: {}
+                assert.same result, {1, "2", {}}
+
+        it "should work with default values", ->
+                f = ({a: a1 = 123, :b = 'abc'}, c = {}) ->
+                        {a1, b, c}
+
+                result1 = f {a: 0}, "test"
+                assert.same result1, {0, 'abc', 'test'}
+
+                result2 = f {}
+                assert.same result2, {123, 'abc', {}}
+
+        it "should destructure with mixed syntax", ->
+                f = (:a, b: b1, :c) ->
+                        {a, b1, c}
+
+                result = f a: 1, b: 2, c: 3
+                assert.same result, {1, 2, 3}
+
+        it "should work with nested destructuring", ->
+                f = ({nested: {:x, :y}}) ->
+                        {x, y}
+
+                result = f nested: {x: 10, y: 20}
+                assert.same result, {10, 20}
+
+        it "should handle array parameters", ->
+                f = ([a, b, c]) ->
+                        {a, b, c}
+
+                result = f [1, 2, 3]
+                assert.same result, {1, 2, 3}
+
+        it "should support mixed array and object", ->
+                f = ([first], {key: :value}) ->
+                        {first, value}
+
+                result = f [1], {key: "test"}
+                assert.same result, {1, "test"}
+
+        it "should work with fat arrow", ->
+                obj =
+                        value: 100
+                        f: ({:x, :y}) =>
+                                @value + x + y
+
+                result = obj\f {x: 10, y: 20}
+                assert.same result, 130
+
+        it "should handle missing keys", ->
+                f = (:a, :b = "default", :c = "missing") ->
+                        {a, b, c}
+
+                result = f a: 1
+                assert.same result, {1, 'default', 'missing'}
+
+        it "should work with complex defaults", ->
+                f = ({a: a1 = 100, b: b1 = a1 + 1000}) ->
+                        a1 + b1
+
+                result = f {}
+                assert.same result, 1200
+
+        it "should support deep nesting", ->
+                f = ({data: {nested: {:value}}}) ->
+                        value
+
+                result = f data: {nested: {value: 42}}
+                assert.same result, 42
+
+        it "should work with multiple parameters", ->
+                f = (:x, :y, :z, extra = "default") ->
+                        {x, y, z, extra}
+
+                result = f x: 1, y: 2, z: 3
+                assert.same result, {1, 2, 3, 'default'}
+
+        it "should handle array destructuring in parameters", ->
+                f = ([first, ...rest]) ->
+                        {first, rest}
+
+                result = f [1, 2, 3, 4]
+                assert.same result, {1, {2, 3, 4}}
+
+        it "should support spreading", ->
+                f = (...rest, :last) ->
+                        {rest, last}
+
+                result = f 1, 2, 3, {last: "final"}
+                assert.same result, {{1, 2, 3}, 'final'}
+
+        it "should work with table comprehensions", ->
+                f = ({:items}) ->
+                        [item * 2 for item in *items]
+
+                result = f items: {1, 2, 3}
+                assert.same result, {2, 4, 6}
+
+        it "should handle nil arguments", ->
+                f = (:a = "nil_a", :b = "nil_b") ->
+                        {a, b}
+
+                result = f nil, nil
+                assert.same result, {'nil_a', 'nil_b'}