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app_vue/node_modules/eslint/lib/rules/func-call-spacing.js

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+/**
+ * @fileoverview Rule to control spacing within function calls
+ * @author Matt DuVall <http://www.mattduvall.com>
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const astUtils = require("./utils/ast-utils");
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+module.exports = {
+    meta: {
+        type: "layout",
+
+        docs: {
+            description: "require or disallow spacing between function identifiers and their invocations",
+            category: "Stylistic Issues",
+            recommended: false,
+            url: "https://eslint.org/docs/rules/func-call-spacing"
+        },
+
+        fixable: "whitespace",
+
+        schema: {
+            anyOf: [
+                {
+                    type: "array",
+                    items: [
+                        {
+                            enum: ["never"]
+                        }
+                    ],
+                    minItems: 0,
+                    maxItems: 1
+                },
+                {
+                    type: "array",
+                    items: [
+                        {
+                            enum: ["always"]
+                        },
+                        {
+                            type: "object",
+                            properties: {
+                                allowNewlines: {
+                                    type: "boolean"
+                                }
+                            },
+                            additionalProperties: false
+                        }
+                    ],
+                    minItems: 0,
+                    maxItems: 2
+                }
+            ]
+        },
+
+        messages: {
+            unexpectedWhitespace: "Unexpected whitespace between function name and paren.",
+            unexpectedNewline: "Unexpected newline between function name and paren.",
+            missing: "Missing space between function name and paren."
+        }
+    },
+
+    create(context) {
+
+        const never = context.options[0] !== "always";
+        const allowNewlines = !never && context.options[1] && context.options[1].allowNewlines;
+        const sourceCode = context.getSourceCode();
+        const text = sourceCode.getText();
+
+        /**
+         * Check if open space is present in a function name
+         * @param {ASTNode} node node to evaluate
+         * @param {Token} leftToken The last token of the callee. This may be the closing parenthesis that encloses the callee.
+         * @param {Token} rightToken Tha first token of the arguments. this is the opening parenthesis that encloses the arguments.
+         * @returns {void}
+         * @private
+         */
+        function checkSpacing(node, leftToken, rightToken) {
+            const textBetweenTokens = text.slice(leftToken.range[1], rightToken.range[0]).replace(/\/\*.*?\*\//gu, "");
+            const hasWhitespace = /\s/u.test(textBetweenTokens);
+            const hasNewline = hasWhitespace && astUtils.LINEBREAK_MATCHER.test(textBetweenTokens);
+
+            /*
+             * never allowNewlines hasWhitespace hasNewline message
+             * F     F             F             F          Missing space between function name and paren.
+             * F     F             F             T          (Invalid `!hasWhitespace && hasNewline`)
+             * F     F             T             T          Unexpected newline between function name and paren.
+             * F     F             T             F          (OK)
+             * F     T             T             F          (OK)
+             * F     T             T             T          (OK)
+             * F     T             F             T          (Invalid `!hasWhitespace && hasNewline`)
+             * F     T             F             F          Missing space between function name and paren.
+             * T     T             F             F          (Invalid `never && allowNewlines`)
+             * T     T             F             T          (Invalid `!hasWhitespace && hasNewline`)
+             * T     T             T             T          (Invalid `never && allowNewlines`)
+             * T     T             T             F          (Invalid `never && allowNewlines`)
+             * T     F             T             F          Unexpected space between function name and paren.
+             * T     F             T             T          Unexpected space between function name and paren.
+             * T     F             F             T          (Invalid `!hasWhitespace && hasNewline`)
+             * T     F             F             F          (OK)
+             *
+             * T                   T                        Unexpected space between function name and paren.
+             * F                   F                        Missing space between function name and paren.
+             * F     F                           T          Unexpected newline between function name and paren.
+             */
+
+            if (never && hasWhitespace) {
+                context.report({
+                    node,
+                    loc: {
+                        start: leftToken.loc.end,
+                        end: {
+                            line: rightToken.loc.start.line,
+                            column: rightToken.loc.start.column - 1
+                        }
+                    },
+                    messageId: "unexpectedWhitespace",
+                    fix(fixer) {
+
+                        // Don't remove comments.
+                        if (sourceCode.commentsExistBetween(leftToken, rightToken)) {
+                            return null;
+                        }
+
+                        // If `?.` exists, it doesn't hide no-unexpected-multiline errors
+                        if (node.optional) {
+                            return fixer.replaceTextRange([leftToken.range[1], rightToken.range[0]], "?.");
+                        }
+
+                        /*
+                         * Only autofix if there is no newline
+                         * https://github.com/eslint/eslint/issues/7787
+                         */
+                        if (hasNewline) {
+                            return null;
+                        }
+                        return fixer.removeRange([leftToken.range[1], rightToken.range[0]]);
+                    }
+                });
+            } else if (!never && !hasWhitespace) {
+                context.report({
+                    node,
+                    loc: {
+                        start: {
+                            line: leftToken.loc.end.line,
+                            column: leftToken.loc.end.column - 1
+                        },
+                        end: rightToken.loc.start
+                    },
+                    messageId: "missing",
+                    fix(fixer) {
+                        if (node.optional) {
+                            return null; // Not sure if inserting a space to either before/after `?.` token.
+                        }
+                        return fixer.insertTextBefore(rightToken, " ");
+                    }
+                });
+            } else if (!never && !allowNewlines && hasNewline) {
+                context.report({
+                    node,
+                    loc: {
+                        start: leftToken.loc.end,
+                        end: rightToken.loc.start
+                    },
+                    messageId: "unexpectedNewline",
+                    fix(fixer) {
+
+                        /*
+                         * Only autofix if there is no newline
+                         * https://github.com/eslint/eslint/issues/7787
+                         * But if `?.` exists, it doesn't hide no-unexpected-multiline errors
+                         */
+                        if (!node.optional) {
+                            return null;
+                        }
+
+                        // Don't remove comments.
+                        if (sourceCode.commentsExistBetween(leftToken, rightToken)) {
+                            return null;
+                        }
+
+                        const range = [leftToken.range[1], rightToken.range[0]];
+                        const qdToken = sourceCode.getTokenAfter(leftToken);
+
+                        if (qdToken.range[0] === leftToken.range[1]) {
+                            return fixer.replaceTextRange(range, "?. ");
+                        }
+                        if (qdToken.range[1] === rightToken.range[0]) {
+                            return fixer.replaceTextRange(range, " ?.");
+                        }
+                        return fixer.replaceTextRange(range, " ?. ");
+                    }
+                });
+            }
+        }
+
+        return {
+            "CallExpression, NewExpression"(node) {
+                const lastToken = sourceCode.getLastToken(node);
+                const lastCalleeToken = sourceCode.getLastToken(node.callee);
+                const parenToken = sourceCode.getFirstTokenBetween(lastCalleeToken, lastToken, astUtils.isOpeningParenToken);
+                const prevToken = parenToken && sourceCode.getTokenBefore(parenToken, astUtils.isNotQuestionDotToken);
+
+                // Parens in NewExpression are optional
+                if (!(parenToken && parenToken.range[1] < node.range[1])) {
+                    return;
+                }
+
+                checkSpacing(node, prevToken, parenToken);
+            },
+
+            ImportExpression(node) {
+                const leftToken = sourceCode.getFirstToken(node);
+                const rightToken = sourceCode.getTokenAfter(leftToken);
+
+                checkSpacing(node, leftToken, rightToken);
+            }
+        };
+
+    }
+};