Diffusion Ant (master) Code

ant/tests/test_tco_asi.js
8755416ca476master

test_tco_asi.js
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			// Regression: verify TCO behavior is preserved with semicolon-free (ASI) style
			// and that newline-after-return keeps standard ASI semantics.

			function fail(msg) {
			console.log("FAIL:", msg)
			process.exit(1)
			}

			function assertEq(actual, expected, msg) {
			if (actual !== expected) fail(msg + " (got " + actual + ", expected " + expected + ")")
			}

			console.log("=== TCO + ASI Regression ===")

			// Semicolon-free style: this should still be optimized as a tail call.
			function countDownAsi(n) {
			if (n === 0) return 0
			return countDownAsi(n - 1)
			}

			assertEq(countDownAsi(100000), 0, "tail recursion with ASI should complete")

			// Tail recursion in ternary form with no trailing semicolons.
			function sumAsi(n, acc = 0) {
			return n === 0 ? acc : sumAsi(n - 1, acc + n)
			}

			assertEq(sumAsi(100000), 5000050000, "tail recursion in ternary should complete")

			// ASI rule check: newline after `return` ends the statement.
			function returnNewlineAsi() {
			return
			42
			}

			if (returnNewlineAsi() !== undefined) fail("newline after return must produce undefined")

			console.log("PASS")

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