a34fdb203e
* Support template literals in enum declarations * Support template literals in const enum access * Support template literals in swith with typeof narrowing * Support template literals in element access discriminant * Support template literals in ambient module declaration * Unify symbols for template literals in computed properties * Unify expression position checks for template literals * Support template literals in rename and find all references * Mark computed properties with template literals as write access * Inline startsWithQuote
52 lines
915 B
TypeScript
52 lines
915 B
TypeScript
type U = TypeA | TypeB;
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interface TypeA {
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kind: 'A';
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a: number;
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}
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interface TypeB {
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kind: 'B';
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b: string;
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}
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function assertNever(x: never) {
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return x;
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}
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function IfWithString(val: U) {
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if (val['kind'] === 'B') {
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return val.b;
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} else {
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return val.a;
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}
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}
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function SwitchWithString(val: U) {
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switch (val['kind']) {
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case 'A':
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return val.a;
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case 'B':
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return val.b;
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default:
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return assertNever(val);
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}
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}
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function IfWithTemplate(val: U) {
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if (val[`kind`] === 'B') {
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return val.b;
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} else {
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return val.a;
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}
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}
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function SwitchWithTemplate(val: U) {
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switch (val[`kind`]) {
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case 'A':
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return val.a;
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case 'B':
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return val.b;
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default:
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return assertNever(val);
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}
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} |