setup-python/node_modules/@babel/traverse/lib/path/inference/inferers.js
Danny McCormick 39c08a0eaa Initial pass
2019-06-26 21:12:00 -04:00

227 lines
6.7 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.VariableDeclarator = VariableDeclarator;
exports.TypeCastExpression = TypeCastExpression;
exports.NewExpression = NewExpression;
exports.TemplateLiteral = TemplateLiteral;
exports.UnaryExpression = UnaryExpression;
exports.BinaryExpression = BinaryExpression;
exports.LogicalExpression = LogicalExpression;
exports.ConditionalExpression = ConditionalExpression;
exports.SequenceExpression = SequenceExpression;
exports.ParenthesizedExpression = ParenthesizedExpression;
exports.AssignmentExpression = AssignmentExpression;
exports.UpdateExpression = UpdateExpression;
exports.StringLiteral = StringLiteral;
exports.NumericLiteral = NumericLiteral;
exports.BooleanLiteral = BooleanLiteral;
exports.NullLiteral = NullLiteral;
exports.RegExpLiteral = RegExpLiteral;
exports.ObjectExpression = ObjectExpression;
exports.ArrayExpression = ArrayExpression;
exports.RestElement = RestElement;
exports.ClassDeclaration = exports.ClassExpression = exports.FunctionDeclaration = exports.ArrowFunctionExpression = exports.FunctionExpression = Func;
exports.CallExpression = CallExpression;
exports.TaggedTemplateExpression = TaggedTemplateExpression;
Object.defineProperty(exports, "Identifier", {
enumerable: true,
get: function () {
return _infererReference.default;
}
});
function t() {
const data = _interopRequireWildcard(require("@babel/types"));
t = function () {
return data;
};
return data;
}
var _infererReference = _interopRequireDefault(require("./inferer-reference"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }
function VariableDeclarator() {
const id = this.get("id");
if (!id.isIdentifier()) return;
const init = this.get("init");
let type = init.getTypeAnnotation();
if (type && type.type === "AnyTypeAnnotation") {
if (init.isCallExpression() && init.get("callee").isIdentifier({
name: "Array"
}) && !init.scope.hasBinding("Array", true)) {
type = ArrayExpression();
}
}
return type;
}
function TypeCastExpression(node) {
return node.typeAnnotation;
}
TypeCastExpression.validParent = true;
function NewExpression(node) {
if (this.get("callee").isIdentifier()) {
return t().genericTypeAnnotation(node.callee);
}
}
function TemplateLiteral() {
return t().stringTypeAnnotation();
}
function UnaryExpression(node) {
const operator = node.operator;
if (operator === "void") {
return t().voidTypeAnnotation();
} else if (t().NUMBER_UNARY_OPERATORS.indexOf(operator) >= 0) {
return t().numberTypeAnnotation();
} else if (t().STRING_UNARY_OPERATORS.indexOf(operator) >= 0) {
return t().stringTypeAnnotation();
} else if (t().BOOLEAN_UNARY_OPERATORS.indexOf(operator) >= 0) {
return t().booleanTypeAnnotation();
}
}
function BinaryExpression(node) {
const operator = node.operator;
if (t().NUMBER_BINARY_OPERATORS.indexOf(operator) >= 0) {
return t().numberTypeAnnotation();
} else if (t().BOOLEAN_BINARY_OPERATORS.indexOf(operator) >= 0) {
return t().booleanTypeAnnotation();
} else if (operator === "+") {
const right = this.get("right");
const left = this.get("left");
if (left.isBaseType("number") && right.isBaseType("number")) {
return t().numberTypeAnnotation();
} else if (left.isBaseType("string") || right.isBaseType("string")) {
return t().stringTypeAnnotation();
}
return t().unionTypeAnnotation([t().stringTypeAnnotation(), t().numberTypeAnnotation()]);
}
}
function LogicalExpression() {
return t().createUnionTypeAnnotation([this.get("left").getTypeAnnotation(), this.get("right").getTypeAnnotation()]);
}
function ConditionalExpression() {
return t().createUnionTypeAnnotation([this.get("consequent").getTypeAnnotation(), this.get("alternate").getTypeAnnotation()]);
}
function SequenceExpression() {
return this.get("expressions").pop().getTypeAnnotation();
}
function ParenthesizedExpression() {
return this.get("expression").getTypeAnnotation();
}
function AssignmentExpression() {
return this.get("right").getTypeAnnotation();
}
function UpdateExpression(node) {
const operator = node.operator;
if (operator === "++" || operator === "--") {
return t().numberTypeAnnotation();
}
}
function StringLiteral() {
return t().stringTypeAnnotation();
}
function NumericLiteral() {
return t().numberTypeAnnotation();
}
function BooleanLiteral() {
return t().booleanTypeAnnotation();
}
function NullLiteral() {
return t().nullLiteralTypeAnnotation();
}
function RegExpLiteral() {
return t().genericTypeAnnotation(t().identifier("RegExp"));
}
function ObjectExpression() {
return t().genericTypeAnnotation(t().identifier("Object"));
}
function ArrayExpression() {
return t().genericTypeAnnotation(t().identifier("Array"));
}
function RestElement() {
return ArrayExpression();
}
RestElement.validParent = true;
function Func() {
return t().genericTypeAnnotation(t().identifier("Function"));
}
const isArrayFrom = t().buildMatchMemberExpression("Array.from");
const isObjectKeys = t().buildMatchMemberExpression("Object.keys");
const isObjectValues = t().buildMatchMemberExpression("Object.values");
const isObjectEntries = t().buildMatchMemberExpression("Object.entries");
function CallExpression() {
const {
callee
} = this.node;
if (isObjectKeys(callee)) {
return t().arrayTypeAnnotation(t().stringTypeAnnotation());
} else if (isArrayFrom(callee) || isObjectValues(callee)) {
return t().arrayTypeAnnotation(t().anyTypeAnnotation());
} else if (isObjectEntries(callee)) {
return t().arrayTypeAnnotation(t().tupleTypeAnnotation([t().stringTypeAnnotation(), t().anyTypeAnnotation()]));
}
return resolveCall(this.get("callee"));
}
function TaggedTemplateExpression() {
return resolveCall(this.get("tag"));
}
function resolveCall(callee) {
callee = callee.resolve();
if (callee.isFunction()) {
if (callee.is("async")) {
if (callee.is("generator")) {
return t().genericTypeAnnotation(t().identifier("AsyncIterator"));
} else {
return t().genericTypeAnnotation(t().identifier("Promise"));
}
} else {
if (callee.node.returnType) {
return callee.node.returnType;
} else {}
}
}
}