source: imaps-frontend/node_modules/jsx-ast-utils/lib/values/expressions/TSNonNullExpression.js

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Last change on this file was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago

Update repo after prototype presentation

  • Property mode set to 100644
File size: 3.3 KB
RevLine 
[d565449]1'use strict';
2
3Object.defineProperty(exports, "__esModule", {
4 value: true
5});
6exports.default = extractValueFromTSNonNullExpression;
7var extractValueFromThisExpression = require('./ThisExpression').default;
8var extractValueFromCallExpression = require('./CallExpression').default;
9
10function navigate(obj, prop, value) {
11 if (value.computed) {
12 return value.optional ? obj + '?.[' + prop + ']' : obj + '[' + prop + ']';
13 }
14 return value.optional ? obj + '?.' + prop : obj + '.' + prop;
15}
16
17/**
18 * Extractor function for a TSNonNullExpression type value node.
19 * A TSNonNullExpression is accessing a TypeScript Non-Null Assertion
20 * Operator !
21 *
22 * @param - value - AST Value object with type `TSNonNullExpression`
23 * @returns - The extracted value converted to correct type
24 * and maintaing `obj.property` convention.
25 */
26function extractValueFromTSNonNullExpression(value) {
27 // eslint-disable-next-line global-require
28 // const getValue = require('.').default;
29 var errorMessage = 'The prop value with an expression type of TSNonNullExpression could not be resolved. Please file an issue ( https://github.com/jsx-eslint/jsx-ast-utils/issues/new ) to get this fixed immediately.';
30
31 // it's just the name
32 if (value.type === 'Identifier') {
33 var name = value.name;
34
35 return name;
36 }
37
38 if (value.type === 'Literal') {
39 return value.value;
40 }
41
42 if (value.type === 'TSAsExpression') {
43 return extractValueFromTSNonNullExpression(value.expression);
44 }
45
46 if (value.type === 'CallExpression') {
47 return extractValueFromCallExpression(value);
48 }
49
50 if (value.type === 'ThisExpression') {
51 return extractValueFromThisExpression();
52 }
53
54 // does not contains properties & is not parenthesized
55 if (value.type === 'TSNonNullExpression' && (!value.extra || value.extra.parenthesized === false)) {
56 var expression = value.expression;
57
58 return extractValueFromTSNonNullExpression(expression) + '!';
59 }
60
61 // does not contains properties & is parenthesized
62 if (value.type === 'TSNonNullExpression' && value.extra && value.extra.parenthesized === true) {
63 var _expression = value.expression;
64
65 return '(' + extractValueFromTSNonNullExpression(_expression) + '!' + ')';
66 }
67
68 if (value.type === 'MemberExpression') {
69 // contains a property & is not parenthesized
70 if (!value.extra || value.extra.parenthesized === false) {
71 return navigate(extractValueFromTSNonNullExpression(value.object), extractValueFromTSNonNullExpression(value.property), value);
72 }
73
74 // contains a property & is parenthesized
75 if (value.extra && value.extra.parenthesized === true) {
76 var result = navigate(extractValueFromTSNonNullExpression(value.object), extractValueFromTSNonNullExpression(value.property), value);
77 return '(' + result + ')';
78 }
79 }
80
81 // try to fail silently, if specs for TSNonNullExpression change
82 // not throw, only log error. Similar to how it was done previously
83 if (value.expression) {
84 var _expression2 = value.expression;
85
86 while (_expression2) {
87 if (_expression2.type === 'Identifier') {
88 // eslint-disable-next-line no-console
89 console.error(errorMessage);
90 return _expression2.name;
91 }
92 var _expression3 = _expression2;
93 _expression2 = _expression3.expression;
94 }
95 }
96
97 // eslint-disable-next-line no-console
98 console.error(errorMessage);
99 return '';
100}
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