2019-11-05 21:06:25 +01:00
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// @strict: true
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2019-12-18 01:46:34 +01:00
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// @allowUnreachableCode: false
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2019-11-05 21:06:25 +01:00
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// Repro from #34797
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function f1() {
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let a: number | null = null;
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try {
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a = 123;
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return a;
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}
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catch (e) {
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throw e;
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}
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finally {
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if (a != null && a.toFixed(0) == "123") {
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}
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}
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}
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function f2() {
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let x: 0 | 1 | 2 | 3 = 0;
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try {
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x = 1;
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}
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catch (e) {
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x = 2;
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throw e;
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}
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finally {
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x; // 0 | 1 | 2
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}
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x; // 1
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}
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function f3() {
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let x: 0 | 1 | 2 | 3 = 0;
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try {
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x = 1;
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}
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catch (e) {
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x = 2;
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return;
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}
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finally {
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x; // 0 | 1 | 2
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}
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x; // 1
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}
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function f4() {
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let x: 0 | 1 | 2 | 3 = 0;
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try {
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x = 1;
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}
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catch (e) {
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x = 2;
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}
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finally {
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x; // 0 | 1 | 2
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}
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x; // 1 | 2
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}
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2019-12-18 01:46:34 +01:00
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function f5() {
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let x: 0 | 1 | 2 | 3 = 0;
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try {
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x = 1;
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return;
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}
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catch (e) {
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x = 2;
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}
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finally {
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x; // 0 | 1 | 2
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}
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x; // 2
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}
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function f6() {
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let x: 0 | 1 | 2 | 3 = 0;
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try {
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x = 1;
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}
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catch (e) {
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x = 2;
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return;
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}
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finally {
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x; // 0 | 1 | 2
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}
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x; // 1
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}
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function f7() {
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let x: 0 | 1 | 2 | 3 = 0;
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try {
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x = 1;
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return;
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}
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catch (e) {
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x = 2;
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return;
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}
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finally {
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x; // 0 | 1 | 2
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}
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x; // Unreachable
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}
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2020-02-26 01:14:00 +01:00
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function f8() {
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let x: 0 | 1 = 0;
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(() => {
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try {
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x = 1;
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return;
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}
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finally {
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x; // 0 | 1
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}
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x; // Unreachable
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})();
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x; // 1
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}
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function f9() {
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let x: 0 | 1 | 2 = 0;
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(() => {
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try {
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if (!!true) {
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x = 1;
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return;
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}
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}
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finally {
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x; // 0 | 1
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}
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x; // 0
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x = 2;
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})();
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x; // 1 | 2
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}
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function f10() {
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let x: 0 | 1 | 2 | 3 = 0;
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(() => {
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try {
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x = 1;
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return;
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}
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catch (e) {
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x = 2;
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}
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finally {
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x; // 0 | 1 | 2
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}
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x; // 2
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x = 3;
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})();
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x; // 1 | 3
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}
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function f11() {
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let x: 0 | 1 | 2 | 3 | 4 | 5 = 0;
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(() => {
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try {
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if (!!true) {
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x = 1;
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return;
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}
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if (!!true) {
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x = 2;
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throw 0;
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}
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}
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catch (e) {
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x; // 0 | 1 | 2
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x = 3;
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}
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finally {
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x; // 0 | 1 | 2 | 3
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if (!!true) {
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x = 4;
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}
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}
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x; // 0 | 3 | 4
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x = 5;
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})();
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x; // 1 | 4 | 5
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}
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function f12() {
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let x: 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 = 0;
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(() => {
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try {
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if (!!true) {
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x = 1;
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return;
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}
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if (!!true) {
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x = 2;
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throw 0;
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}
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}
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catch (e) {
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x; // 0 | 1 | 2
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x = 3;
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}
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finally {
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x; // 0 | 1 | 2 | 3
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if (!!true) {
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x = 4;
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return;
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}
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if (!!true) {
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x = 5;
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return;
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}
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x = 6;
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return;
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x; // unreachable
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}
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x; // unreachable
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x = 7; // no effect
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})();
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x; // 4 | 5 | 6
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}
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2019-12-18 01:46:34 +01:00
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// Repro from #35644
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const main = () => {
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let hoge: string | undefined = undefined;
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try {
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hoge = 'hoge!';
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return;
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}
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catch {
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return;
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}
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finally {
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if (hoge) {
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hoge.length;
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}
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return;
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}
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}
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2020-02-26 01:14:00 +01:00
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// Repro from #36828
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function t1() {
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const x = (() => {
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try {
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return 'x';
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}
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catch (e) {
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return null;
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}
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x; // Unreachable
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})();
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x; // Reachable
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}
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2020-07-03 18:51:01 +02:00
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// Repro from #39043
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type State = { tag: "one" } | { tag: "two" } | { tag: "three" };
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function notallowed(arg: number) {
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let state: State = { tag: "one" };
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try {
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state = { tag: "two" };
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try {
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state = { tag: "three" };
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}
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finally { }
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}
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catch (err) {
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state.tag;
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if (state.tag !== "one" && state.tag !== "two") {
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console.log(state.tag);
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}
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}
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}
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function f20() {
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let x: 0 | 1 | 2 | 3 | 4 | 5 | 6 = 0;
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try {
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x = 1;
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try {
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x = 2;
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try {
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x = 3;
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}
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finally {
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if (!!true) x = 4;
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}
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x; // 3 | 4
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}
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finally {
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if (!!true) x = 5;
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}
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x; // 3 | 4 | 5
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}
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finally {
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if (!!true) x = 6;
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}
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x; // 3 | 4 | 5 | 6
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}
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function f21() {
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let x: 0 | 1 | 2 | 3 | 4 | 5 = 0;
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try {
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x = 1;
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try {
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x = 2;
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try {
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x = 3;
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}
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finally {
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if (!!true) x = 4;
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}
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x; // 3 | 4
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}
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finally {
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if (!!true) x = 5;
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}
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x; // 3 | 4 | 5
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}
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catch (e) {
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x; // 0 | 1 | 2 | 3 | 4 | 5
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}
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}
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