Blame view
node_modules/eslint/lib/rules/space-before-function-paren.js
3.84 KB
c39994410
wip converting to...
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 |
/**
* @fileoverview Rule to validate spacing before function paren.
* @author Mathias Schreck <https://github.com/lo1tuma>
* @copyright 2015 Mathias Schreck
* See LICENSE in root directory for full license.
*/
"use strict";
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = function(context) {
var configuration = context.options[0],
sourceCode = context.getSourceCode(),
requireAnonymousFunctionSpacing = true,
requireNamedFunctionSpacing = true;
if (typeof configuration === "object") {
requireAnonymousFunctionSpacing = configuration.anonymous !== "never";
requireNamedFunctionSpacing = configuration.named !== "never";
} else if (configuration === "never") {
requireAnonymousFunctionSpacing = false;
requireNamedFunctionSpacing = false;
}
/**
* Determines whether a function has a name.
* @param {ASTNode} node The function node.
* @returns {boolean} Whether the function has a name.
*/
function isNamedFunction(node) {
var parent;
if (node.id) {
return true;
}
parent = node.parent;
return parent.type === "MethodDefinition" ||
(parent.type === "Property" &&
(
parent.kind === "get" ||
parent.kind === "set" ||
parent.method
)
);
}
/**
* Validates the spacing before function parentheses.
* @param {ASTNode} node The node to be validated.
* @returns {void}
*/
function validateSpacingBeforeParentheses(node) {
var isNamed = isNamedFunction(node),
leftToken,
rightToken,
location;
if (node.generator && !isNamed) {
return;
}
rightToken = sourceCode.getFirstToken(node);
while (rightToken.value !== "(") {
rightToken = sourceCode.getTokenAfter(rightToken);
}
leftToken = context.getTokenBefore(rightToken);
location = leftToken.loc.end;
if (sourceCode.isSpaceBetweenTokens(leftToken, rightToken)) {
if ((isNamed && !requireNamedFunctionSpacing) || (!isNamed && !requireAnonymousFunctionSpacing)) {
context.report({
node: node,
loc: location,
message: "Unexpected space before function parentheses.",
fix: function(fixer) {
return fixer.removeRange([leftToken.range[1], rightToken.range[0]]);
}
});
}
} else {
if ((isNamed && requireNamedFunctionSpacing) || (!isNamed && requireAnonymousFunctionSpacing)) {
context.report({
node: node,
loc: location,
message: "Missing space before function parentheses.",
fix: function(fixer) {
return fixer.insertTextAfter(leftToken, " ");
}
});
}
}
}
return {
"FunctionDeclaration": validateSpacingBeforeParentheses,
"FunctionExpression": validateSpacingBeforeParentheses
};
};
module.exports.schema = [
{
"oneOf": [
{
"enum": ["always", "never"]
},
{
"type": "object",
"properties": {
"anonymous": {
"enum": ["always", "never"]
},
"named": {
"enum": ["always", "never"]
}
},
"additionalProperties": false
}
]
}
];
|