Diffusion Ant (master) Code

ant/examples/jit/exceptions.js
8755416ca476master

exceptions.js
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			function test1() {
			try {
			throw 'error';
			} catch (e) {
			return e;
			}
			}
			for (let i = 0; i < 110; i++) test1();
			console.log('[test1] throw string:', test1(), 'ok:', test1() === 'error');

			function test2() {
			try {
			return 42;
			} catch (e) {
			return -1;
			}
			}
			for (let i = 0; i < 110; i++) test2();
			console.log('[test2] no throw:', test2(), 'ok:', test2() === 42);

			function test3() {
			try {
			throw 99;
			} catch (e) {
			return e;
			}
			}
			for (let i = 0; i < 110; i++) test3();
			console.log('[test3] throw number:', test3(), 'ok:', test3() === 99);

			function thrower() {
			throw 'boom';
			}
			function test4() {
			try {
			return thrower();
			} catch (e) {
			return e;
			}
			}
			for (let i = 0; i < 110; i++) test4();
			console.log('[test4] catch from call:', test4(), 'ok:', test4() === 'boom');

			function test5() {
			let result = 0;
			try {
			throw 'err';
			} catch (e) {
			result = 10;
			}
			return result + 5;
			}
			for (let i = 0; i < 110; i++) test5();
			console.log('[test5] code after catch:', test5(), 'ok:', test5() === 15);

			function test6() {
			try {
			try {
			throw 'inner';
			} catch (e) {
			return 'caught: ' + e;
			}
			} catch (e) {
			return 'outer: ' + e;
			}
			}
			for (let i = 0; i < 110; i++) test6();
			console.log('[test6] nested catch:', test6(), 'ok:', test6() === 'caught: inner');

			function test7() {
			try {
			try {
			throw 'propagate';
			} catch (e) {
			throw 're: ' + e;
			}
			} catch (e) {
			return e;
			}
			}
			for (let i = 0; i < 110; i++) test7();
			console.log('[test7] re-throw:', test7(), 'ok:', test7() === 're: propagate');

			function test8(x) {
			try {
			let a = x + 1;
			let b = a * 2;
			return b;
			} catch (e) {
			return -1;
			}
			}
			for (let i = 0; i < 110; i++) test8(i);
			console.log('[test8] complex try body:', test8(5), 'ok:', test8(5) === 12);

			function test9() {
			try {
			throw 10;
			} catch (e) {
			return e + 32;
			}
			}
			for (let i = 0; i < 110; i++) test9();
			console.log('[test9] catch computation:', test9(), 'ok:', test9() === 42);

			function test10(doThrow) {
			try {
			if (doThrow) throw 'thrown';
			return 'ok';
			} catch (e) {
			return e;
			}
			}
			for (let i = 0; i < 110; i++) test10(i % 2 === 0);
			console.log('[test10a] throw path:', test10(true), 'ok:', test10(true) === 'thrown');
			console.log('[test10b] no-throw path:', test10(false), 'ok:', test10(false) === 'ok');

			function test11() {
			try {
			throw true;
			} catch (e) {
			return e;
			}
			}
			for (let i = 0; i < 110; i++) test11();
			console.log('[test11] throw bool:', test11(), 'ok:', test11() === true);

			function safe() {
			return 1;
			}
			function unsafe() {
			throw 'fail';
			}
			function test12() {
			try {
			let a = safe();
			let b = safe();
			let c = unsafe();
			return a + b + c;
			} catch (e) {
			return e;
			}
			}
			for (let i = 0; i < 110; i++) test12();
			console.log('[test12] multi-call catch:', test12(), 'ok:', test12() === 'fail');

			function test13() {
			try {
			let x = undefined;
			x.foo;
			} catch (e) {
			return 'caught';
			}
			return 'missed';
			}
			for (let i = 0; i < 110; i++) test13();
			console.log('[test13] throw_error:', test13(), 'ok:', test13() === 'caught');

			function test14() {
			let obj = {
			greet() {
			return 'hello';
			}
			};
			return obj.greet();
			}
			for (let i = 0; i < 110; i++) test14();
			console.log('[test14] get_field2:', test14(), 'ok:', test14() === 'hello');

			function test15() {
			let obj = {
			say() {
			return 'hi';
			}
			};
			let key = 'say';
			return obj[key]();
			}
			for (let i = 0; i < 110; i++) test15();
			console.log('[test15] get_elem2:', test15(), 'ok:', test15() === 'hi');

			function test16() {
			let base = { x: 10 };
			let child = { __proto__: base, y: 20 };
			return child.x + child.y;
			}
			for (let i = 0; i < 110; i++) test16();
			console.log('[test16] set_proto:', test16(), 'ok:', test16() === 30);

			function test17() {
			try {
			let x = null;
			return x.foo;
			} catch (e) {
			return 'caught';
			}
			}
			for (let i = 0; i < 110; i++) test17();
			console.log('[test17] get_field err:', test17(), 'ok:', test17() === 'caught');

			function test18() {
			try {
			let x = undefined;
			return x[0];
			} catch (e) {
			return 'caught';
			}
			}
			for (let i = 0; i < 110; i++) test18();
			console.log('[test18] get_elem err:', test18(), 'ok:', test18() === 'caught');

			function test19() {
			let arr = [1, 2, 3];
			return arr['join']('-');
			}
			for (let i = 0; i < 110; i++) test19();
			console.log('[test19] elem2 arr:', test19(), 'ok:', test19() === '1-2-3');

			function test20() {
			let obj = {
			val: 0,
			add(n) {
			return {
			val: this.val + n,
			add: this.add,
			get() {
			return this.val;
			}
			};
			},
			get() {
			return this.val;
			}
			};
			return obj.add(1).add(2).get();
			}
			for (let i = 0; i < 110; i++) test20();
			console.log('[test20] chain calls:', test20(), 'ok:', test20() === 3);

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