File: /var/www/blog.affstore/node_modules/eslint-plugin-svelte/lib/utils/ast-utils.js
"use strict";
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if (mod && mod.__esModule) return mod;
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return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.isExpressionIdentifier = exports.isVoidHtmlElement = exports.getNodeName = exports.getDirectiveName = exports.getAttributeKeyText = exports.getMustacheTokens = exports.getAttributeValueQuoteAndRange = exports.getParent = exports.getScope = exports.findVariable = exports.getLangValue = exports.getStaticAttributeValue = exports.findBindDirective = exports.findShorthandAttribute = exports.findAttribute = exports.isHTMLElementLike = exports.needParentheses = exports.getStringIfConstant = exports.equalTokens = void 0;
const eslintUtils = __importStar(require("@eslint-community/eslint-utils"));
const void_elements_1 = __importDefault(require("./void-elements"));
function equalTokens(left, right, sourceCode) {
const tokensL = sourceCode.getTokens(left);
const tokensR = sourceCode.getTokens(right);
if (tokensL.length !== tokensR.length) {
return false;
}
for (let i = 0; i < tokensL.length; ++i) {
if (tokensL[i].type !== tokensR[i].type ||
tokensL[i].value !== tokensR[i].value) {
return false;
}
}
return true;
}
exports.equalTokens = equalTokens;
function getStringIfConstant(node) {
if (node.type === "Literal") {
if (typeof node.value === "string")
return node.value;
}
else if (node.type === "TemplateLiteral") {
let str = "";
const quasis = [...node.quasis];
const expressions = [...node.expressions];
let quasi, expr;
while ((quasi = quasis.shift())) {
str += quasi.value.cooked;
expr = expressions.shift();
if (expr) {
const exprStr = getStringIfConstant(expr);
if (exprStr == null) {
return null;
}
str += exprStr;
}
}
return str;
}
else if (node.type === "BinaryExpression") {
if (node.operator === "+") {
const left = getStringIfConstant(node.left);
if (left == null) {
return null;
}
const right = getStringIfConstant(node.right);
if (right == null) {
return null;
}
return left + right;
}
}
return null;
}
exports.getStringIfConstant = getStringIfConstant;
function needParentheses(node, kind) {
if (node.type === "ArrowFunctionExpression" ||
node.type === "AssignmentExpression" ||
node.type === "BinaryExpression" ||
node.type === "ConditionalExpression" ||
node.type === "LogicalExpression" ||
node.type === "SequenceExpression" ||
node.type === "UnaryExpression" ||
node.type === "UpdateExpression")
return true;
if (kind === "logical") {
return node.type === "FunctionExpression";
}
return false;
}
exports.needParentheses = needParentheses;
function isHTMLElementLike(node) {
if (node.type !== "SvelteElement") {
return false;
}
switch (node.kind) {
case "html":
return true;
case "special":
return node.name.name === "svelte:element";
default:
return false;
}
}
exports.isHTMLElementLike = isHTMLElementLike;
function findAttribute(node, name) {
const startTag = node.type === "SvelteStartTag" ? node : node.startTag;
for (const attr of startTag.attributes) {
if (attr.type === "SvelteAttribute") {
if (attr.key.name === name) {
return attr;
}
}
}
return null;
}
exports.findAttribute = findAttribute;
function findShorthandAttribute(node, name) {
const startTag = node.type === "SvelteStartTag" ? node : node.startTag;
for (const attr of startTag.attributes) {
if (attr.type === "SvelteShorthandAttribute") {
if (attr.key.name === name) {
return attr;
}
}
}
return null;
}
exports.findShorthandAttribute = findShorthandAttribute;
function findBindDirective(node, name) {
const startTag = node.type === "SvelteStartTag" ? node : node.startTag;
for (const attr of startTag.attributes) {
if (attr.type === "SvelteDirective") {
if (attr.kind === "Binding" && attr.key.name.name === name) {
return attr;
}
}
}
return null;
}
exports.findBindDirective = findBindDirective;
function getStaticAttributeValue(node) {
let str = "";
for (const value of node.value) {
if (value.type === "SvelteLiteral") {
str += value.value;
}
else {
return null;
}
}
return str;
}
exports.getStaticAttributeValue = getStaticAttributeValue;
function getLangValue(node) {
const langAttr = findAttribute(node, "lang");
return langAttr && getStaticAttributeValue(langAttr);
}
exports.getLangValue = getLangValue;
function findVariable(context, node) {
const initialScope = eslintUtils.getInnermostScope(getScope(context, node), node);
const variable = eslintUtils.findVariable(initialScope, node);
if (variable) {
return variable;
}
if (!node.name.startsWith("$")) {
return variable;
}
return eslintUtils.findVariable(initialScope, node.name.slice(1));
}
exports.findVariable = findVariable;
function getScope(context, currentNode) {
const scopeManager = context.getSourceCode().scopeManager;
let node = currentNode;
for (; node; node = node.parent || null) {
const scope = scopeManager.acquire(node, false);
if (scope) {
if (scope.type === "function-expression-name") {
return scope.childScopes[0];
}
return scope;
}
}
return scopeManager.scopes[0];
}
exports.getScope = getScope;
function getParent(node) {
return node.parent || null;
}
exports.getParent = getParent;
function getAttributeValueQuoteAndRange(attr, sourceCode) {
const valueTokens = getAttributeValueRangeTokens(attr, sourceCode);
if (valueTokens == null) {
return null;
}
const { firstToken: valueFirstToken, lastToken: valueLastToken } = valueTokens;
const eqToken = sourceCode.getTokenAfter(attr.key);
if (!eqToken ||
eqToken.value !== "=" ||
valueFirstToken.range[0] < eqToken.range[1]) {
return null;
}
const beforeTokens = sourceCode.getTokensBetween(eqToken, valueFirstToken);
if (beforeTokens.length === 0) {
return {
quote: "unquoted",
range: [valueFirstToken.range[0], valueLastToken.range[1]],
firstToken: valueFirstToken,
lastToken: valueLastToken,
};
}
else if (beforeTokens.length > 1 ||
(beforeTokens[0].value !== '"' && beforeTokens[0].value !== "'")) {
return null;
}
const beforeToken = beforeTokens[0];
const afterToken = sourceCode.getTokenAfter(valueLastToken);
if (!afterToken || afterToken.value !== beforeToken.value) {
return null;
}
return {
quote: beforeToken.value === '"' ? "double" : "single",
range: [beforeToken.range[0], afterToken.range[1]],
firstToken: beforeToken,
lastToken: afterToken,
};
}
exports.getAttributeValueQuoteAndRange = getAttributeValueQuoteAndRange;
function getMustacheTokens(node, sourceCode) {
if (node.type === "SvelteMustacheTag" ||
node.type === "SvelteShorthandAttribute" ||
node.type === "SvelteSpreadAttribute" ||
node.type === "SvelteDebugTag") {
const openToken = sourceCode.getFirstToken(node);
const closeToken = sourceCode.getLastToken(node);
return {
openToken,
closeToken,
};
}
if (node.expression == null) {
return null;
}
if (node.key.range[0] <= node.expression.range[0] &&
node.expression.range[1] <= node.key.range[1]) {
return null;
}
let openToken = sourceCode.getTokenBefore(node.expression);
let closeToken = sourceCode.getTokenAfter(node.expression);
while (openToken &&
closeToken &&
eslintUtils.isOpeningParenToken(openToken) &&
eslintUtils.isClosingParenToken(closeToken)) {
openToken = sourceCode.getTokenBefore(openToken);
closeToken = sourceCode.getTokenAfter(closeToken);
}
if (!openToken ||
!closeToken ||
eslintUtils.isNotOpeningBraceToken(openToken) ||
eslintUtils.isNotClosingBraceToken(closeToken)) {
return null;
}
return {
openToken,
closeToken,
};
}
exports.getMustacheTokens = getMustacheTokens;
function getAttributeKeyText(node, context) {
switch (node.type) {
case "SvelteAttribute":
case "SvelteShorthandAttribute":
return node.key.name;
case "SvelteStyleDirective":
return `style:${node.key.name.name}`;
case "SvelteSpecialDirective":
return node.kind;
case "SvelteDirective": {
const dir = getDirectiveName(node);
return `${dir}:${getSimpleNameFromNode(node.key.name, context)}${node.key.modifiers.length ? `|${node.key.modifiers.join("|")}` : ""}`;
}
default:
throw new Error(`Unknown node type: ${node.type}`);
}
}
exports.getAttributeKeyText = getAttributeKeyText;
function getDirectiveName(node) {
switch (node.kind) {
case "Action":
return "use";
case "Animation":
return "animate";
case "Binding":
return "bind";
case "Class":
return "class";
case "EventHandler":
return "on";
case "Let":
return "let";
case "Transition":
return node.intro && node.outro ? "transition" : node.intro ? "in" : "out";
case "Ref":
return "ref";
default:
throw new Error("Unknown directive kind");
}
}
exports.getDirectiveName = getDirectiveName;
function getAttributeValueRangeTokens(attr, sourceCode) {
if (attr.type === "SvelteAttribute" || attr.type === "SvelteStyleDirective") {
if (!attr.value.length) {
return null;
}
const first = attr.value[0];
const last = attr.value[attr.value.length - 1];
return {
firstToken: sourceCode.getFirstToken(first),
lastToken: sourceCode.getLastToken(last),
};
}
const tokens = getMustacheTokens(attr, sourceCode);
if (!tokens) {
return null;
}
return {
firstToken: tokens.openToken,
lastToken: tokens.closeToken,
};
}
function getNodeName(node) {
return getSimpleNameFromNode(node.name);
}
exports.getNodeName = getNodeName;
function isVoidHtmlElement(node) {
return void_elements_1.default.includes(getNodeName(node));
}
exports.isVoidHtmlElement = isVoidHtmlElement;
function isExpressionIdentifier(node) {
const parent = node.parent;
if (!parent) {
return true;
}
if (parent.type === "MemberExpression") {
return !parent.computed || parent.property !== node;
}
if (parent.type === "Property" ||
parent.type === "MethodDefinition" ||
parent.type === "PropertyDefinition") {
return !parent.computed || parent.key !== node;
}
if (parent.type === "FunctionDeclaration" ||
parent.type === "FunctionExpression" ||
parent.type === "ClassDeclaration" ||
parent.type === "ClassExpression") {
return parent.id !== node;
}
if (parent.type === "LabeledStatement" ||
parent.type === "BreakStatement" ||
parent.type === "ContinueStatement") {
return parent.label !== node;
}
if (parent.type === "MetaProperty") {
return parent.property !== node;
}
if (parent.type === "ImportSpecifier") {
return parent.imported !== node;
}
if (parent.type === "ExportSpecifier") {
return parent.exported !== node;
}
return true;
}
exports.isExpressionIdentifier = isExpressionIdentifier;
function getSimpleNameFromNode(node, context) {
if (node.type === "Identifier" || node.type === "SvelteName") {
return node.name;
}
if (node.type === "SvelteMemberExpressionName" ||
(node.type === "MemberExpression" && !node.computed)) {
return `${getSimpleNameFromNode(node.object, context)}.${getSimpleNameFromNode(node.property, context)}`;
}
if (!context) {
throw new Error("Rule context is required");
}
return context.getSourceCode().getText(node);
}