hexo/node_modules/@babel/traverse/lib/path/inference/inferers.js

208 lines
6.5 KiB
JavaScript

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