TSNonNullExpression.js
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'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = extractValueFromTSNonNullExpression;
/**
* Extractor function for a TSNonNullExpression type value node.
* A TSNonNullExpression is accessing a TypeScript Non-Null Assertion
* Operator !
*
* @param - value - AST Value object with type `TSNonNullExpression`
* @returns - The extracted value converted to correct type
* and maintaing `obj.property` convention.
*/
function extractValueFromTSNonNullExpression(value) {
// eslint-disable-next-line global-require
// const getValue = require('.').default;
var errorMessage = 'The prop value with an expression type of TSNonNullExpression could not be resolved. Please file issue to get this fixed immediately.';
// it's just the name
if (value.type === 'Identifier') {
var name = value.name;
return name;
}
// does not contains properties & is not parenthesized
if (value.type === 'TSNonNullExpression' && (!value.extra || value.extra.parenthesized === false)) {
var expression = value.expression;
return extractValueFromTSNonNullExpression(expression) + '!';
}
// does not contains properties & is parenthesized
if (value.type === 'TSNonNullExpression' && value.extra && value.extra.parenthesized === true) {
var _expression = value.expression;
return '(' + extractValueFromTSNonNullExpression(_expression) + '!' + ')';
}
// contains a property & is not parenthesized
if (value.type === 'MemberExpression' && (!value.extra || value.extra.parenthesized === false)) {
return '' + extractValueFromTSNonNullExpression(value.object) + (value.optional ? '?.' : '.') + extractValueFromTSNonNullExpression(value.property);
}
// contains a property & is parenthesized
if (value.type === 'MemberExpression' && value.extra && value.extra.parenthesized === true) {
return '(' + extractValueFromTSNonNullExpression(value.object) + (value.optional ? '?.' : '.') + extractValueFromTSNonNullExpression(value.property) + ')';
}
// try to fail silently, if specs for TSNonNullExpression change
// not throw, only log error. Similar to how it was done previously
if (value.expression) {
var _expression2 = value.expression;
while (_expression2) {
if (_expression2.type === 'Identifier') {
// eslint-disable-next-line no-console
console.error(errorMessage);
return _expression2.name;
}
var _expression3 = _expression2;
_expression2 = _expression3.expression;
}
}
// eslint-disable-next-line no-console
console.error(errorMessage);
return '';
}