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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.TokenContext = void 0;
exports.isLastChild = isLastChild;
exports.needsParens = needsParens;
exports.needsWhitespace = needsWhitespace;
exports.needsWhitespaceAfter = needsWhitespaceAfter;
exports.needsWhitespaceBefore = needsWhitespaceBefore;
var whitespace = require("./whitespace.js");
var parens = require("./parentheses.js");
var _t = require("@babel/types");
const {
FLIPPED_ALIAS_KEYS,
VISITOR_KEYS,
isCallExpression,
isDecorator,
isExpressionStatement,
isMemberExpression,
isNewExpression,
isParenthesizedExpression
} = _t;
const TokenContext = exports.TokenContext = {
expressionStatement: 1,
arrowBody: 2,
exportDefault: 4,
forHead: 8,
forInHead: 16,
forOfHead: 32,
arrowFlowReturnType: 64
};
function expandAliases(obj) {
const map = new Map();
function add(type, func) {
const fn = map.get(type);
map.set(type, fn ? function (node, parent, stack, inForInit, getRawIdentifier) {
var _fn;
return (_fn = fn(node, parent, stack, inForInit, getRawIdentifier)) != null ? _fn : func(node, parent, stack, inForInit, getRawIdentifier);
} : func);
}
for (const type of Object.keys(obj)) {
const aliases = FLIPPED_ALIAS_KEYS[type];
if (aliases) {
for (const alias of aliases) {
add(alias, obj[type]);
}
} else {
add(type, obj[type]);
}
}
return map;
}
const expandedParens = expandAliases(parens);
const expandedWhitespaceNodes = expandAliases(whitespace.nodes);
function isOrHasCallExpression(node) {
if (isCallExpression(node)) {
return true;
}
return isMemberExpression(node) && isOrHasCallExpression(node.object);
}
function needsWhitespace(node, parent, type) {
var _expandedWhitespaceNo;
if (!node) return false;
if (isExpressionStatement(node)) {
node = node.expression;
}
const flag = (_expandedWhitespaceNo = expandedWhitespaceNodes.get(node.type)) == null ? void 0 : _expandedWhitespaceNo(node, parent);
if (typeof flag === "number") {
return (flag & type) !== 0;
}
return false;
}
function needsWhitespaceBefore(node, parent) {
return needsWhitespace(node, parent, 1);
}
function needsWhitespaceAfter(node, parent) {
return needsWhitespace(node, parent, 2);
}
function needsParens(node, parent, tokenContext, inForInit, getRawIdentifier) {
var _expandedParens$get;
if (!parent) return false;
if (isNewExpression(parent) && parent.callee === node) {
if (isOrHasCallExpression(node)) return true;
}
if (isDecorator(parent)) {
return !isDecoratorMemberExpression(node) && !(isCallExpression(node) && isDecoratorMemberExpression(node.callee)) && !isParenthesizedExpression(node);
}
return (_expandedParens$get = expandedParens.get(node.type)) == null ? void 0 : _expandedParens$get(node, parent, tokenContext, inForInit, getRawIdentifier);
}
function isDecoratorMemberExpression(node) {
switch (node.type) {
case "Identifier":
return true;
case "MemberExpression":
return !node.computed && node.property.type === "Identifier" && isDecoratorMemberExpression(node.object);
default:
return false;
}
}
function isLastChild(parent, child) {
const visitorKeys = VISITOR_KEYS[parent.type];
for (let i = visitorKeys.length - 1; i >= 0; i--) {
const val = parent[visitorKeys[i]];
if (val === child) {
return true;
} else if (Array.isArray(val)) {
let j = val.length - 1;
while (j >= 0 && val[j] === null) j--;
return j >= 0 && val[j] === child;
} else if (val) {
return false;
}
}
return false;
}
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