.config/coc/extensions/node_modules/coc-prettier/node_modules/tslint/node_modules/tsutils/util/type.js

   1 "use strict";
   2 Object.defineProperty(exports, "__esModule", { value: true });
   3 var ts = require("typescript");
   4 var type_1 = require("../typeguard/type");
   5 var util_1 = require("./util");
   6 function isEmptyObjectType(type) {
   7     if (type_1.isObjectType(type) &&
   8         type.objectFlags & ts.ObjectFlags.Anonymous &&
   9         type.getProperties().length === 0 &&
  10         type.getCallSignatures().length === 0 &&
  11         type.getConstructSignatures().length === 0 &&
  12         type.getStringIndexType() === undefined &&
  13         type.getNumberIndexType() === undefined) {
  14         var baseTypes = type.getBaseTypes();
  15         return baseTypes === undefined || baseTypes.every(isEmptyObjectType);
  16     }
  17     return false;
  18 }
  19 exports.isEmptyObjectType = isEmptyObjectType;
  20 function removeOptionalityFromType(checker, type) {
  21     if (!containsTypeWithFlag(type, ts.TypeFlags.Undefined))
  22         return type;
  23     var allowsNull = containsTypeWithFlag(type, ts.TypeFlags.Null);
  24     type = checker.getNonNullableType(type);
  25     return allowsNull ? checker.getNullableType(type, ts.TypeFlags.Null) : type;
  26 }
  27 exports.removeOptionalityFromType = removeOptionalityFromType;
  28 function containsTypeWithFlag(type, flag) {
  29     for (var _i = 0, _a = unionTypeParts(type); _i < _a.length; _i++) {
  30         var t = _a[_i];
  31         if (util_1.isTypeFlagSet(t, flag))
  32             return true;
  33     }
  34     return false;
  35 }
  36 function isTypeAssignableToNumber(checker, type) {
  37     return isTypeAssignableTo(checker, type, ts.TypeFlags.NumberLike);
  38 }
  39 exports.isTypeAssignableToNumber = isTypeAssignableToNumber;
  40 function isTypeAssignableToString(checker, type) {
  41     return isTypeAssignableTo(checker, type, ts.TypeFlags.StringLike);
  42 }
  43 exports.isTypeAssignableToString = isTypeAssignableToString;
  44 function isTypeAssignableTo(checker, type, flags) {
  45     flags |= ts.TypeFlags.Any;
  46     var typeParametersSeen;
  47     return (function check(t) {
  48         if (type_1.isTypeParameter(t) && t.symbol !== undefined && t.symbol.declarations !== undefined) {
  49             if (typeParametersSeen === undefined) {
  50                 typeParametersSeen = new Set([t]);
  51             }
  52             else if (!typeParametersSeen.has(t)) {
  53                 typeParametersSeen.add(t);
  54             }
  55             else {
  56                 return false;
  57             }
  58             var declaration = t.symbol.declarations[0];
  59             if (declaration.constraint === undefined)
  60                 return true;
  61             return check(checker.getTypeFromTypeNode(declaration.constraint));
  62         }
  63         if (type_1.isUnionType(t))
  64             return t.types.every(check);
  65         if (type_1.isIntersectionType(t))
  66             return t.types.some(check);
  67         return util_1.isTypeFlagSet(t, flags);
  68     })(type);
  69 }
  70 function getCallSignaturesOfType(type) {
  71     if (type_1.isUnionType(type)) {
  72         var signatures = [];
  73         for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
  74             var t = _a[_i];
  75             signatures.push.apply(signatures, getCallSignaturesOfType(t));
  76         }
  77         return signatures;
  78     }
  79     if (type_1.isIntersectionType(type)) {
  80         var signatures = void 0;
  81         for (var _b = 0, _c = type.types; _b < _c.length; _b++) {
  82             var t = _c[_b];
  83             var sig = getCallSignaturesOfType(t);
  84             if (sig.length !== 0) {
  85                 if (signatures !== undefined)
  86                     return [];
  87                 signatures = sig;
  88             }
  89         }
  90         return signatures === undefined ? [] : signatures;
  91     }
  92     return type.getCallSignatures();
  93 }
  94 exports.getCallSignaturesOfType = getCallSignaturesOfType;
  95 function unionTypeParts(type) {
  96     return type_1.isUnionType(type) ? type.types : [type];
  97 }
  98 exports.unionTypeParts = unionTypeParts;
  99 function isThenableType(checker, node, type) {
 100     if (type === void 0) { type = checker.getTypeAtLocation(node); }
 101     for (var _i = 0, _a = unionTypeParts(checker.getApparentType(type)); _i < _a.length; _i++) {
 102         var ty = _a[_i];
 103         var then = ty.getProperty('then');
 104         if (then === undefined)
 105             continue;
 106         var thenType = checker.getTypeOfSymbolAtLocation(then, node);
 107         for (var _b = 0, _c = unionTypeParts(thenType); _b < _c.length; _b++) {
 108             var t = _c[_b];
 109             for (var _d = 0, _e = t.getCallSignatures(); _d < _e.length; _d++) {
 110                 var signature = _e[_d];
 111                 if (signature.parameters.length !== 0 && isCallback(checker, signature.parameters[0], node))
 112                     return true;
 113             }
 114         }
 115     }
 116     return false;
 117 }
 118 exports.isThenableType = isThenableType;
 119 function isCallback(checker, param, node) {
 120     var type = checker.getApparentType(checker.getTypeOfSymbolAtLocation(param, node));
 121     if (param.valueDeclaration.dotDotDotToken) {
 122         type = type.getNumberIndexType();
 123         if (type === undefined)
 124             return false;
 125     }
 126     for (var _i = 0, _a = unionTypeParts(type); _i < _a.length; _i++) {
 127         var t = _a[_i];
 128         if (t.getCallSignatures().length !== 0)
 129             return true;
 130     }
 131     return false;
 132 }
 133 function isFalsyType(type) {
 134     if (type.flags & (ts.TypeFlags.Undefined | ts.TypeFlags.Null | ts.TypeFlags.Void))
 135         return true;
 136     if (type_1.isLiteralType(type))
 137         return !type.value;
 138     if (type.flags & ts.TypeFlags.BooleanLiteral)
 139         return type.intrinsicName === 'false';
 140     return false;
 141 }
 142 exports.isFalsyType = isFalsyType;
 143 //# sourceMappingURL=data:application/json;base64,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