1 files changed, 139 insertions, 0 deletions

diff --git a/spec/inputs/test/do_statement_spec.yue b/spec/inputs/test/do_statement_spec.yue
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+++ b/spec/inputs/test/do_statement_spec.yue
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+describe "do statement", ->
+        it "should create new scope", ->
+                x = 10
+                do
+                        local x = 20
+                        assert.same x, 20
+                assert.same x, 10
+
+        it "should return value from do block", ->
+                result = do
+                        x = 5
+                        x * 2
+                assert.same result, 10
+
+        it "should work with multiple statements", ->
+                result = do
+                        a = 1
+                        b = 2
+                        c = 3
+                        a + b + c
+                assert.same result, 6
+
+        it "should handle nested do blocks", ->
+                result = do
+                        x = 10
+                        y = do
+                                z = 5
+                                z * 2
+                        x + y
+                assert.same result, 20
+
+        it "should support conditional in do block", ->
+                result = do
+                        value = 5
+                        if value > 3
+                                value * 2
+                        else
+                                value
+                assert.same result, 10
+
+        it "should work with loops in do block", ->
+                result = do
+                        sum = 0
+                        for i = 1, 5
+                                sum += i
+                        sum
+                assert.same result, 15
+
+        it "should handle table operations", ->
+                result = do
+                        tb = {1, 2, 3}
+                        table.insert tb, 4
+                        #tb
+                assert.same result, 4
+
+        it "should work with function definition", ->
+                result = do
+                        fn = (x) -> x * 2
+                        fn 5
+                assert.same result, 10
+
+        it "should support variable shadowing", ->
+                x = "outer"
+                result = do
+                        x = "inner"
+                        x
+                assert.same result, "inner"
+                assert.same x, "outer"
+
+        it "should work with method calls", ->
+                obj =
+                        value: 10
+                        double: => @value * 2
+
+                result = do
+                        with obj
+                                \double!
+                assert.same result, 20
+
+        it "should handle comprehensions in do block", ->
+                result = do
+                        items = [1, 2, 3, 4, 5]
+                        [item * 2 for item in *items]
+                assert.same result, {2, 4, 6, 8, 10}
+
+        it "should work with try-catch", ->
+                result = do
+                        success = try
+                                error "test error"
+                                false
+                        catch err
+                                true
+                assert.is_true success
+
+        it "should support return statement", ->
+                fn = ->
+                        do
+                                x = 10
+                                return x * 2
+                        "never reached"
+
+                result = fn!
+                assert.same result, 20
+
+        it "should work with assignment", ->
+                result = do
+                        a, b, c = 1, 2, 3
+                        a + b + c
+                assert.same result, 6
+
+        it "should handle destructuring", ->
+                result = do
+                        tb = {x: 10, y: 20}
+                        {:x, :y} = tb
+                        x + y
+                assert.same result, 30
+
+        it "should work with string interpolation", ->
+                name = "world"
+                result = do
+                        greeting = "hello"
+                        "#{greeting} #{name}"
+                assert.same result, "hello world"
+
+        it "should support implicit return", ->
+                result = do
+                        value = 42
+                assert.same result, 42
+
+        it "should handle empty do block", ->
+                result = do
+                assert.same result, nil
+
+        it "should work with backcalls", ->
+                result = do
+                        items = [1, 2, 3]
+                        (x) <- map _, items
+                        x * 2
+                assert.same result, {2, 4, 6}