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Date
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utils
[ DIR ]
drwxr-xr-x
2024-07-10 10:55
accessor-pairs.js
12.41
KB
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2019-09-14 01:35
array-bracket-newline.js
9.43
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2019-09-14 01:35
array-bracket-spacing.js
8.85
KB
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2019-09-14 01:35
array-callback-return.js
7.98
KB
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2019-09-14 01:35
array-element-newline.js
9.22
KB
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2023-12-15 20:21
arrow-body-style.js
10.27
KB
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2019-09-14 01:35
arrow-parens.js
6.38
KB
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2019-09-14 01:35
arrow-spacing.js
5.08
KB
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2019-09-14 01:35
block-scoped-var.js
3.58
KB
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2019-09-14 01:35
block-spacing.js
4.99
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2019-09-14 01:35
brace-style.js
7.71
KB
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2019-09-14 01:35
callback-return.js
6.33
KB
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2019-09-14 01:35
camelcase.js
8.29
KB
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2019-09-14 01:35
capitalized-comments.js
10.68
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2023-12-15 20:21
class-methods-use-this.js
3.81
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2019-09-14 01:35
comma-dangle.js
11.75
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2019-09-14 01:35
comma-spacing.js
6.53
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2019-09-14 01:35
comma-style.js
11.78
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2019-09-14 01:35
complexity.js
4.94
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2019-09-14 01:35
computed-property-spacing.js
7.17
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2019-09-14 01:35
consistent-return.js
6.59
KB
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2019-09-14 01:35
consistent-this.js
4.86
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2019-09-14 01:35
constructor-super.js
13.49
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2019-09-14 01:35
curly.js
16.24
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2019-09-14 01:35
default-case.js
2.76
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2019-09-14 01:35
default-param-last.js
1.5
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2019-09-14 01:35
dot-location.js
3.34
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2019-09-14 01:35
dot-notation.js
6.47
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2019-09-14 01:35
eol-last.js
3.79
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2019-09-14 01:35
eqeqeq.js
5.55
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2023-12-15 20:21
for-direction.js
4.27
KB
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2019-09-14 01:35
func-call-spacing.js
7.29
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2019-09-14 01:35
func-name-matching.js
9.84
KB
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2023-12-15 20:21
func-names.js
6.09
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2023-12-15 20:21
func-style.js
2.84
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2019-09-14 01:35
function-call-argument-newline.js
4.13
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2019-09-14 01:35
function-paren-newline.js
11.15
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2019-09-14 01:35
generator-star-spacing.js
6.98
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2019-09-14 01:35
getter-return.js
6.02
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2019-09-14 01:35
global-require.js
2.3
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2019-09-14 01:35
guard-for-in.js
2.3
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2019-09-14 01:35
handle-callback-err.js
2.92
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2019-09-14 01:35
id-blacklist.js
4.05
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2019-09-14 01:35
id-length.js
4.12
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2019-09-14 01:35
id-match.js
8.14
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2019-09-14 01:35
implicit-arrow-linebreak.js
2.79
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2019-09-14 01:35
indent-legacy.js
44.45
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2019-09-14 01:35
indent.js
68.68
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2019-09-14 01:35
index.js
16.34
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2019-09-14 01:35
init-declarations.js
4.37
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2019-09-14 01:35
jsx-quotes.js
2.89
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2019-09-14 01:35
key-spacing.js
24.82
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2019-09-14 01:35
keyword-spacing.js
21.2
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2019-09-14 01:35
line-comment-position.js
4.08
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2019-09-14 01:35
linebreak-style.js
3.17
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2019-09-14 01:35
lines-around-comment.js
15.54
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2019-09-14 01:35
lines-around-directive.js
7.58
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2019-09-14 01:35
lines-between-class-members.js
5.05
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2019-09-14 01:35
max-classes-per-file.js
1.73
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2019-09-14 01:35
max-depth.js
4.59
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2019-09-14 01:35
max-len.js
13.8
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2019-09-14 01:35
max-lines-per-function.js
6.89
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2019-09-14 01:35
max-lines.js
4.59
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2019-09-14 01:35
max-nested-callbacks.js
3.47
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2019-09-14 01:35
max-params.js
3.07
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2019-09-14 01:35
max-statements-per-line.js
7.31
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2019-09-14 01:35
max-statements.js
5.4
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2019-09-14 01:35
multiline-comment-style.js
14.42
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2019-09-14 01:35
multiline-ternary.js
3.42
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2019-09-14 01:35
new-cap.js
9.44
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2019-09-14 01:35
new-parens.js
3.14
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2019-09-14 01:35
newline-after-var.js
9.6
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2019-09-14 01:35
newline-before-return.js
7.89
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2019-09-14 01:35
newline-per-chained-call.js
3.56
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2019-09-14 01:35
no-alert.js
3.96
KB
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2019-09-14 01:35
no-array-constructor.js
1.36
KB
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2019-09-14 01:35
no-async-promise-executor.js
1.1
KB
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2019-09-14 01:35
no-await-in-loop.js
2.72
KB
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2019-09-14 01:35
no-bitwise.js
3.51
KB
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2019-09-14 01:35
no-buffer-constructor.js
1.31
KB
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2019-09-14 01:35
no-caller.js
1.17
KB
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2019-09-14 01:35
no-case-declarations.js
1.82
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2019-09-14 01:35
no-catch-shadow.js
2.44
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2019-09-14 01:35
no-class-assign.js
1.67
KB
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2019-09-14 01:35
no-compare-neg-zero.js
1.9
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2019-09-14 01:35
no-cond-assign.js
5.04
KB
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2019-09-14 01:35
no-confusing-arrow.js
2.55
KB
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2019-09-14 01:35
no-console.js
4.21
KB
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2019-09-14 01:35
no-const-assign.js
1.46
KB
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2019-09-14 01:35
no-constant-condition.js
8.48
KB
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2019-09-14 01:35
no-continue.js
875
B
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2019-09-14 01:35
no-control-regex.js
3.14
KB
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2019-09-14 01:35
no-debugger.js
947
B
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2019-09-14 01:35
no-delete-var.js
965
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2019-09-14 01:35
no-div-regex.js
1.42
KB
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2019-09-14 01:35
no-dupe-args.js
2.3
KB
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2019-09-14 01:35
no-dupe-class-members.js
3.58
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2019-09-14 01:35
no-dupe-keys.js
3.87
KB
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2019-09-14 01:35
no-duplicate-case.js
1.36
KB
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2019-09-14 01:35
no-duplicate-imports.js
4.43
KB
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2019-09-14 01:35
no-else-return.js
15.74
KB
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2019-09-14 01:35
no-empty-character-class.js
1.91
KB
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2019-09-14 01:35
no-empty-function.js
4.61
KB
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2019-09-14 01:35
no-empty-pattern.js
1.15
KB
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2019-09-14 01:35
no-empty.js
2.44
KB
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2019-09-14 01:35
no-eq-null.js
1.21
KB
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2019-09-14 01:35
no-eval.js
9.31
KB
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2019-09-14 01:35
no-ex-assign.js
1.37
KB
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2019-09-14 01:35
no-extend-native.js
6.95
KB
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2019-09-14 01:35
no-extra-bind.js
5.71
KB
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2019-09-14 01:35
no-extra-boolean-cast.js
6.52
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2019-09-14 01:35
no-extra-label.js
4.76
KB
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2019-09-14 01:35
no-extra-parens.js
39.11
KB
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2019-09-14 01:35
no-extra-semi.js
4.11
KB
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2019-09-14 01:35
no-fallthrough.js
4.78
KB
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2019-09-14 01:35
no-floating-decimal.js
2.33
KB
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2019-09-14 01:35
no-func-assign.js
1.96
KB
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2019-09-14 01:35
no-global-assign.js
2.76
KB
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2019-09-14 01:35
no-implicit-coercion.js
10.06
KB
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2019-09-14 01:35
no-implicit-globals.js
1.78
KB
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2019-09-14 01:35
no-implied-eval.js
5.99
KB
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2019-09-14 01:35
no-import-assign.js
6.92
KB
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2019-09-14 01:35
no-inline-comments.js
2.19
KB
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2019-09-14 01:35
no-inner-declarations.js
2.59
KB
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2019-09-14 01:35
no-invalid-regexp.js
4.01
KB
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2019-09-14 01:35
no-invalid-this.js
3.74
KB
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2019-09-14 01:35
no-irregular-whitespace.js
8.72
KB
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2019-09-14 01:35
no-iterator.js
1.08
KB
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2019-09-14 01:35
no-label-var.js
2.13
KB
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2019-09-14 01:35
no-labels.js
4.22
KB
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2019-09-14 01:35
no-lone-blocks.js
3.68
KB
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2019-09-14 01:35
no-lonely-if.js
3.62
KB
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2019-09-14 01:35
no-loop-func.js
6.16
KB
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2019-09-14 01:35
no-magic-numbers.js
5.8
KB
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2019-09-14 01:35
no-misleading-character-class.js
6.05
KB
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2019-09-14 01:35
no-mixed-operators.js
8.21
KB
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2019-09-14 01:35
no-mixed-requires.js
6.91
KB
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2019-09-14 01:35
no-mixed-spaces-and-tabs.js
4.54
KB
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2019-09-14 01:35
no-multi-assign.js
1.18
KB
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2019-09-14 01:35
no-multi-spaces.js
4.85
KB
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2019-09-14 01:35
no-multi-str.js
1.64
KB
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2019-09-14 01:35
no-multiple-empty-lines.js
5.75
KB
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2019-09-14 01:35
no-native-reassign.js
2.86
KB
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2019-09-14 01:35
no-negated-condition.js
2.68
KB
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2019-09-14 01:35
no-negated-in-lhs.js
1.08
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2019-09-14 01:35
no-nested-ternary.js
986
B
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2019-09-14 01:35
no-new-func.js
1.24
KB
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2019-09-14 01:35
no-new-object.js
923
B
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2019-09-14 01:35
no-new-require.js
960
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2019-09-14 01:35
no-new-symbol.js
1.27
KB
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2019-09-14 01:35
no-new-wrappers.js
1.05
KB
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2019-09-14 01:35
no-new.js
913
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2019-09-14 01:35
no-obj-calls.js
1.84
KB
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2019-09-14 01:35
no-octal-escape.js
1.42
KB
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2019-09-14 01:35
no-octal.js
886
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2019-09-14 01:35
no-param-reassign.js
6.8
KB
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2019-09-14 01:35
no-path-concat.js
1.44
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2019-09-14 01:35
no-plusplus.js
1.66
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2019-09-14 01:35
no-process-env.js
1.01
KB
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2019-09-14 01:35
no-process-exit.js
1.08
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2019-09-14 01:35
no-proto.js
1.07
KB
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2019-09-14 01:35
no-prototype-builtins.js
1.63
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2019-09-14 01:35
no-redeclare.js
5.6
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2019-09-14 01:35
no-regex-spaces.js
3.73
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2019-09-14 01:35
no-restricted-globals.js
3.76
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2019-09-14 01:35
no-restricted-imports.js
11.43
KB
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2023-12-15 20:21
no-restricted-modules.js
5.9
KB
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2023-12-15 20:21
no-restricted-properties.js
6.46
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2019-09-14 01:35
no-restricted-syntax.js
1.97
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2019-09-14 01:35
no-return-assign.js
2.49
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2019-09-14 01:35
no-return-await.js
3.73
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2019-09-14 01:35
no-script-url.js
1.05
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2019-09-14 01:35
no-self-assign.js
6.79
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2019-09-14 01:35
no-self-compare.js
1.72
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2019-09-14 01:35
no-sequences.js
3.94
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2019-09-14 01:35
no-shadow-restricted-names.js
2
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2019-09-14 01:35
no-shadow.js
6.81
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2019-09-14 01:35
no-spaced-func.js
2.34
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2019-09-14 01:35
no-sparse-arrays.js
1.07
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2019-09-14 01:35
no-sync.js
1.52
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2019-09-14 01:35
no-tabs.js
2.01
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2019-09-14 01:35
no-template-curly-in-string.js
1.04
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2019-09-14 01:35
no-ternary.js
793
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2019-09-14 01:35
no-this-before-super.js
9.95
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2019-09-14 01:35
no-throw-literal.js
1.26
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2019-09-14 01:35
no-trailing-spaces.js
6.13
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2019-09-14 01:35
no-undef-init.js
2.01
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2019-09-14 01:35
no-undef.js
2.24
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2019-09-14 01:35
no-undefined.js
2.07
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2019-09-14 01:35
no-underscore-dangle.js
7.44
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2019-09-14 01:35
no-unexpected-multiline.js
3.59
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2019-09-14 01:35
no-unmodified-loop-condition.js
11.65
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2019-09-14 01:35
no-unneeded-ternary.js
6.58
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2019-09-14 01:35
no-unreachable.js
6.29
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2019-09-14 01:35
no-unsafe-finally.js
3.87
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2019-09-14 01:35
no-unsafe-negation.js
2.36
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2019-09-14 01:35
no-unused-expressions.js
4.7
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2019-09-14 01:35
no-unused-labels.js
3.22
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2019-09-14 01:35
no-unused-vars.js
23.08
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2019-09-14 01:35
no-use-before-define.js
7.45
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2019-09-14 01:35
no-useless-call.js
2.78
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2019-09-14 01:35
no-useless-catch.js
1.55
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2019-09-14 01:35
no-useless-computed-key.js
3.19
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2019-09-14 01:35
no-useless-concat.js
3.16
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2019-09-14 01:35
no-useless-constructor.js
5.46
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2019-09-14 01:35
no-useless-escape.js
8.98
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2019-09-14 01:35
no-useless-rename.js
5.08
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2019-09-14 01:35
no-useless-return.js
11.77
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2019-09-14 01:35
no-var.js
12.13
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2019-09-14 01:35
no-void.js
1.03
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2019-09-14 01:35
no-warning-comments.js
5.4
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2019-09-14 01:35
no-whitespace-before-property.js
3.33
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2019-09-14 01:35
no-with.js
784
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2019-09-14 01:35
nonblock-statement-body-position.js
4.41
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2023-12-15 20:21
object-curly-newline.js
10.69
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2019-09-14 01:35
object-curly-spacing.js
11.27
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2019-09-14 01:35
object-property-newline.js
3.59
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2019-09-14 01:35
object-shorthand.js
20.66
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2019-09-14 01:35
one-var-declaration-per-line.js
2.74
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2019-09-14 01:35
one-var.js
21
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2019-09-14 01:35
operator-assignment.js
7.73
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Save
Rename
/** * @fileoverview Rule to flag adding properties to native object's prototypes. * @author David Nelson */ "use strict"; //------------------------------------------------------------------------------ // Requirements //------------------------------------------------------------------------------ const astUtils = require("./utils/ast-utils"); const globals = require("globals"); //------------------------------------------------------------------------------ // Helpers //------------------------------------------------------------------------------ const propertyDefinitionMethods = new Set(["defineProperty", "defineProperties"]); //------------------------------------------------------------------------------ // Rule Definition //------------------------------------------------------------------------------ module.exports = { meta: { type: "suggestion", docs: { description: "disallow extending native types", category: "Best Practices", recommended: false, url: "https://eslint.org/docs/rules/no-extend-native" }, schema: [ { type: "object", properties: { exceptions: { type: "array", items: { type: "string" }, uniqueItems: true } }, additionalProperties: false } ], messages: { unexpected: "{{builtin}} prototype is read only, properties should not be added." } }, create(context) { const config = context.options[0] || {}; const exceptions = new Set(config.exceptions || []); const modifiedBuiltins = new Set( Object.keys(globals.builtin) .filter(builtin => builtin[0].toUpperCase() === builtin[0]) .filter(builtin => !exceptions.has(builtin)) ); /** * Reports a lint error for the given node. * @param {ASTNode} node The node to report. * @param {string} builtin The name of the native builtin being extended. * @returns {void} */ function reportNode(node, builtin) { context.report({ node, messageId: "unexpected", data: { builtin } }); } /** * Check to see if the `prototype` property of the given object * identifier node is being accessed. * @param {ASTNode} identifierNode The Identifier representing the object * to check. * @returns {boolean} True if the identifier is the object of a * MemberExpression and its `prototype` property is being accessed, * false otherwise. */ function isPrototypePropertyAccessed(identifierNode) { return Boolean( identifierNode && identifierNode.parent && identifierNode.parent.type === "MemberExpression" && identifierNode.parent.object === identifierNode && astUtils.getStaticPropertyName(identifierNode.parent) === "prototype" ); } /** * Checks that an identifier is an object of a prototype whose member * is being assigned in an AssignmentExpression. * Example: Object.prototype.foo = "bar" * @param {ASTNode} identifierNode The identifier to check. * @returns {boolean} True if the identifier's prototype is modified. */ function isInPrototypePropertyAssignment(identifierNode) { return Boolean( isPrototypePropertyAccessed(identifierNode) && identifierNode.parent.parent.type === "MemberExpression" && identifierNode.parent.parent.parent.type === "AssignmentExpression" && identifierNode.parent.parent.parent.left === identifierNode.parent.parent ); } /** * Checks that an identifier is an object of a prototype whose member * is being extended via the Object.defineProperty() or * Object.defineProperties() methods. * Example: Object.defineProperty(Array.prototype, "foo", ...) * Example: Object.defineProperties(Array.prototype, ...) * @param {ASTNode} identifierNode The identifier to check. * @returns {boolean} True if the identifier's prototype is modified. */ function isInDefinePropertyCall(identifierNode) { return Boolean( isPrototypePropertyAccessed(identifierNode) && identifierNode.parent.parent.type === "CallExpression" && identifierNode.parent.parent.arguments[0] === identifierNode.parent && identifierNode.parent.parent.callee.type === "MemberExpression" && identifierNode.parent.parent.callee.object.type === "Identifier" && identifierNode.parent.parent.callee.object.name === "Object" && identifierNode.parent.parent.callee.property.type === "Identifier" && propertyDefinitionMethods.has(identifierNode.parent.parent.callee.property.name) ); } /** * Check to see if object prototype access is part of a prototype * extension. There are three ways a prototype can be extended: * 1. Assignment to prototype property (Object.prototype.foo = 1) * 2. Object.defineProperty()/Object.defineProperties() on a prototype * If prototype extension is detected, report the AssignmentExpression * or CallExpression node. * @param {ASTNode} identifierNode The Identifier representing the object * which prototype is being accessed and possibly extended. * @returns {void} */ function checkAndReportPrototypeExtension(identifierNode) { if (isInPrototypePropertyAssignment(identifierNode)) { // Identifier --> MemberExpression --> MemberExpression --> AssignmentExpression reportNode(identifierNode.parent.parent.parent, identifierNode.name); } else if (isInDefinePropertyCall(identifierNode)) { // Identifier --> MemberExpression --> CallExpression reportNode(identifierNode.parent.parent, identifierNode.name); } } return { "Program:exit"() { const globalScope = context.getScope(); modifiedBuiltins.forEach(builtin => { const builtinVar = globalScope.set.get(builtin); if (builtinVar && builtinVar.references) { builtinVar.references .map(ref => ref.identifier) .forEach(checkAndReportPrototypeExtension); } }); } }; } };