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"use strict";
exports.__esModule = true;
exports.AwaitExpression = exports.FunctionTypeAnnotation = undefined;
exports.NullableTypeAnnotation = NullableTypeAnnotation;
exports.UpdateExpression = UpdateExpression;
exports.ObjectExpression = ObjectExpression;
exports.DoExpression = DoExpression;
exports.Binary = Binary;
exports.BinaryExpression = BinaryExpression;
exports.SequenceExpression = SequenceExpression;
exports.YieldExpression = YieldExpression;
exports.ClassExpression = ClassExpression;
exports.UnaryLike = UnaryLike;
exports.FunctionExpression = FunctionExpression;
exports.ArrowFunctionExpression = ArrowFunctionExpression;
exports.ConditionalExpression = ConditionalExpression;
exports.AssignmentExpression = AssignmentExpression;
var _babelTypes = require("babel-types");
var t = _interopRequireWildcard(_babelTypes);
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
var PRECEDENCE = {
"||": 0,
"&&": 1,
"|": 2,
"^": 3,
"&": 4,
"==": 5,
"===": 5,
"!=": 5,
"!==": 5,
"<": 6,
">": 6,
"<=": 6,
">=": 6,
in: 6,
instanceof: 6,
">>": 7,
"<<": 7,
">>>": 7,
"+": 8,
"-": 8,
"*": 9,
"/": 9,
"%": 9,
"**": 10
};
function NullableTypeAnnotation(node, parent) {
return t.isArrayTypeAnnotation(parent);
}
exports.FunctionTypeAnnotation = NullableTypeAnnotation;
function UpdateExpression(node, parent) {
return t.isMemberExpression(parent) && parent.object === node;
}
function ObjectExpression(node, parent, printStack) {
return isFirstInStatement(printStack, { considerArrow: true });
}
function DoExpression(node, parent, printStack) {
return isFirstInStatement(printStack);
}
function Binary(node, parent) {
if ((t.isCallExpression(parent) || t.isNewExpression(parent)) && parent.callee === node || t.isUnaryLike(parent) || t.isMemberExpression(parent) && parent.object === node || t.isAwaitExpression(parent)) {
return true;
}
if (t.isBinary(parent)) {
var parentOp = parent.operator;
var parentPos = PRECEDENCE[parentOp];
var nodeOp = node.operator;
var nodePos = PRECEDENCE[nodeOp];
if (parentPos === nodePos && parent.right === node && !t.isLogicalExpression(parent) || parentPos > nodePos) {
return true;
}
}
return false;
}
function BinaryExpression(node, parent) {
return node.operator === "in" && (t.isVariableDeclarator(parent) || t.isFor(parent));
}
function SequenceExpression(node, parent) {
if (t.isForStatement(parent) || t.isThrowStatement(parent) || t.isReturnStatement(parent) || t.isIfStatement(parent) && parent.test === node || t.isWhileStatement(parent) && parent.test === node || t.isForInStatement(parent) && parent.right === node || t.isSwitchStatement(parent) && parent.discriminant === node || t.isExpressionStatement(parent) && parent.expression === node) {
return false;
}
return true;
}
function YieldExpression(node, parent) {
return t.isBinary(parent) || t.isUnaryLike(parent) || t.isCallExpression(parent) || t.isMemberExpression(parent) || t.isNewExpression(parent) || t.isConditionalExpression(parent) && node === parent.test;
}
exports.AwaitExpression = YieldExpression;
function ClassExpression(node, parent, printStack) {
return isFirstInStatement(printStack, { considerDefaultExports: true });
}
function UnaryLike(node, parent) {
return t.isMemberExpression(parent, { object: node }) || t.isCallExpression(parent, { callee: node }) || t.isNewExpression(parent, { callee: node });
}
function FunctionExpression(node, parent, printStack) {
return isFirstInStatement(printStack, { considerDefaultExports: true });
}
function ArrowFunctionExpression(node, parent) {
if (t.isExportDeclaration(parent) || t.isBinaryExpression(parent) || t.isLogicalExpression(parent) || t.isUnaryExpression(parent) || t.isTaggedTemplateExpression(parent)) {
return true;
}
return UnaryLike(node, parent);
}
function ConditionalExpression(node, parent) {
if (t.isUnaryLike(parent) || t.isBinary(parent) || t.isConditionalExpression(parent, { test: node }) || t.isAwaitExpression(parent)) {
return true;
}
return UnaryLike(node, parent);
}
function AssignmentExpression(node) {
if (t.isObjectPattern(node.left)) {
return true;
} else {
return ConditionalExpression.apply(undefined, arguments);
}
}
function isFirstInStatement(printStack) {
var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
_ref$considerArrow = _ref.considerArrow,
considerArrow = _ref$considerArrow === undefined ? false : _ref$considerArrow,
_ref$considerDefaultE = _ref.considerDefaultExports,
considerDefaultExports = _ref$considerDefaultE === undefined ? false : _ref$considerDefaultE;
var i = printStack.length - 1;
var node = printStack[i];
i--;
var parent = printStack[i];
while (i > 0) {
if (t.isExpressionStatement(parent, { expression: node }) || t.isTaggedTemplateExpression(parent) || considerDefaultExports && t.isExportDefaultDeclaration(parent, { declaration: node }) || considerArrow && t.isArrowFunctionExpression(parent, { body: node })) {
return true;
}
if (t.isCallExpression(parent, { callee: node }) || t.isSequenceExpression(parent) && parent.expressions[0] === node || t.isMemberExpression(parent, { object: node }) || t.isConditional(parent, { test: node }) || t.isBinary(parent, { left: node }) || t.isAssignmentExpression(parent, { left: node })) {
node = parent;
i--;
parent = printStack[i];
} else {
return false;
}
}
return false;
}
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