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