| 1 | /**
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| 2 | * Disallows space after opening square bracket and before closing.
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| 3 | * Reports on all on brackets, even on property accessors.
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| 4 | * Use [disallowSpacesInsideArrayBrackets](http://jscs.info/rule/disallowSpacesInsideArrayBrackets.html)
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| 5 | * to exclude property accessors.
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| 6 | *
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| 7 | * Types: `Boolean` or `Object`
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| 8 | *
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| 9 | * Values: `true` for strict mode, or `"allExcept": [ "[", "]" ]`
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| 10 | * ignores closing brackets in a row.
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| 11 | *
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| 12 | * #### Example
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| 13 | *
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| 14 | * ```js
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| 15 | * "disallowSpacesInsideBrackets": true
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| 16 | *
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| 17 | * // or
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| 18 | *
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| 19 | * "disallowSpacesInsideBrackets": {
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| 20 | * "allExcept": [ "[", "]", "{", "}" ]
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| 21 | * }
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| 22 | * ```
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| 23 | *
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| 24 | * ##### Valid for mode `true`
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| 25 | *
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| 26 | * ```js
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| 27 | * var x = [[1]];
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| 28 | * var x = a[1];
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| 29 | * ```
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| 30 | *
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| 31 | * ##### Valid for mode `{ allExcept": [ "[", "]", "{", "}" ] }`
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| 32 | *
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| 33 | * ```js
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| 34 | * var x = [ [1] ];
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| 35 | * var x = [ { a: 1 } ];
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| 36 | * ```
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| 37 | *
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| 38 | * ##### Invalid
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| 39 | *
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| 40 | * ```js
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| 41 | * var x = [ [ 1 ] ];
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| 42 | * ```
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| 43 | */
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| 44 |
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| 45 | var assert = require('assert');
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| 46 |
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| 47 | module.exports = function() {};
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| 48 |
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| 49 | module.exports.prototype = {
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| 50 |
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| 51 | configure: function(value) {
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| 52 | var isObject = typeof value === 'object';
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| 53 |
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| 54 | var error = this.getOptionName() + ' rule requires string value true or object';
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| 55 |
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| 56 | if (isObject) {
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| 57 | assert('allExcept' in value, error);
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| 58 | } else {
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| 59 | assert(value === true, error);
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| 60 | }
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| 61 |
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| 62 | this._exceptions = {};
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| 63 |
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| 64 | if (isObject) {
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| 65 | (value.allExcept || []).forEach(function(value) {
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| 66 | this._exceptions[value] = true;
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| 67 | }, this);
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| 68 | }
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| 69 | },
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| 70 |
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| 71 | getOptionName: function() {
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| 72 | return 'disallowSpacesInsideBrackets';
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| 73 | },
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| 74 |
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| 75 | check: function(file, errors) {
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| 76 | var exceptions = this._exceptions;
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| 77 |
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| 78 | file.iterateTokensByTypeAndValue('Punctuator', '[', function(token) {
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| 79 | var nextToken = file.getNextToken(token, { includeComments: true });
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| 80 | var value = nextToken.getSourceCode();
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| 81 |
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| 82 | if (value in exceptions) {
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| 83 | return;
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| 84 | }
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| 85 |
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| 86 | // Skip for empty array brackets
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| 87 | if (value === ']') {
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| 88 | return;
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| 89 | }
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| 90 |
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| 91 | errors.assert.noWhitespaceBetween({
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| 92 | token: token,
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| 93 | nextToken: nextToken,
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| 94 | message: 'Illegal space after opening bracket'
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| 95 | });
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| 96 | });
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| 97 |
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| 98 | file.iterateTokensByTypeAndValue('Punctuator', ']', function(token) {
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| 99 | var prevToken = file.getPrevToken(token, { includeComments: true });
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| 100 | var value = prevToken.getSourceCode();
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| 101 |
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| 102 | if (value in exceptions) {
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| 103 | return;
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| 104 | }
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| 105 |
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| 106 | // Skip for empty array brackets
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| 107 | if (value === '[') {
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| 108 | return;
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| 109 | }
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| 110 |
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| 111 | errors.assert.noWhitespaceBetween({
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| 112 | token: prevToken,
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| 113 | nextToken: token,
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| 114 | message: 'Illegal space before closing bracket'
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| 115 | });
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| 116 | });
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| 117 | }
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| 118 | };
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