wallet-core/node_modules/tsutils/util/util.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var ts = require("typescript");
var node_1 = require("../typeguard/node");
tslib_1.__exportStar(require("./control-flow"), exports);
function getChildOfKind(node, kind, sourceFile) {
    for (var _i = 0, _a = node.getChildren(sourceFile); _i < _a.length; _i++) {
        var child = _a[_i];
        if (child.kind === kind)
            return child;
    }
}
exports.getChildOfKind = getChildOfKind;
function isTokenKind(kind) {
    return kind >= ts.SyntaxKind.FirstToken && kind <= ts.SyntaxKind.LastToken;
}
exports.isTokenKind = isTokenKind;
function isNodeKind(kind) {
    return kind >= ts.SyntaxKind.FirstNode;
}
exports.isNodeKind = isNodeKind;
function isAssignmentKind(kind) {
    return kind >= ts.SyntaxKind.FirstAssignment && kind <= ts.SyntaxKind.LastAssignment;
}
exports.isAssignmentKind = isAssignmentKind;
function isTypeNodeKind(kind) {
    return kind >= ts.SyntaxKind.FirstTypeNode && kind <= ts.SyntaxKind.LastTypeNode;
}
exports.isTypeNodeKind = isTypeNodeKind;
function isJsDocKind(kind) {
    return kind >= ts.SyntaxKind.FirstJSDocNode && kind <= ts.SyntaxKind.LastJSDocNode;
}
exports.isJsDocKind = isJsDocKind;
function isThisParameter(parameter) {
    return parameter.name.kind === ts.SyntaxKind.Identifier && parameter.name.originalKeywordKind === ts.SyntaxKind.ThisKeyword;
}
exports.isThisParameter = isThisParameter;
function getModifier(node, kind) {
    if (node.modifiers !== undefined)
        for (var _i = 0, _a = node.modifiers; _i < _a.length; _i++) {
            var modifier = _a[_i];
            if (modifier.kind === kind)
                return modifier;
        }
}
exports.getModifier = getModifier;
function hasModifier(modifiers) {
    var kinds = [];
    for (var _i = 1; _i < arguments.length; _i++) {
        kinds[_i - 1] = arguments[_i];
    }
    if (modifiers === undefined)
        return false;
    for (var _a = 0, modifiers_1 = modifiers; _a < modifiers_1.length; _a++) {
        var modifier = modifiers_1[_a];
        if (kinds.indexOf(modifier.kind) !== -1)
            return true;
    }
    return false;
}
exports.hasModifier = hasModifier;
function isParameterProperty(node) {
    return hasModifier(node.modifiers, ts.SyntaxKind.PublicKeyword, ts.SyntaxKind.ProtectedKeyword, ts.SyntaxKind.PrivateKeyword, ts.SyntaxKind.ReadonlyKeyword);
}
exports.isParameterProperty = isParameterProperty;
function hasAccessModifier(node) {
    return hasModifier(node.modifiers, ts.SyntaxKind.PublicKeyword, ts.SyntaxKind.ProtectedKeyword, ts.SyntaxKind.PrivateKeyword);
}
exports.hasAccessModifier = hasAccessModifier;
function isFlagSet(obj, flag) {
    return (obj.flags & flag) !== 0;
}
exports.isNodeFlagSet = isFlagSet;
exports.isTypeFlagSet = isFlagSet;
exports.isSymbolFlagSet = isFlagSet;
function isObjectFlagSet(objectType, flag) {
    return (objectType.objectFlags & flag) !== 0;
}
exports.isObjectFlagSet = isObjectFlagSet;
function isModifierFlagSet(node, flag) {
    return (ts.getCombinedModifierFlags(node) & flag) !== 0;
}
exports.isModifierFlagSet = isModifierFlagSet;
function isModfierFlagSet(node, flag) {
    return isModifierFlagSet(node, flag);
}
exports.isModfierFlagSet = isModfierFlagSet;
function getPreviousStatement(statement) {
    var parent = statement.parent;
    if (node_1.isBlockLike(parent)) {
        var index = parent.statements.indexOf(statement);
        if (index > 0)
            return parent.statements[index - 1];
    }
}
exports.getPreviousStatement = getPreviousStatement;
function getNextStatement(statement) {
    var parent = statement.parent;
    if (node_1.isBlockLike(parent)) {
        var index = parent.statements.indexOf(statement);
        if (index < parent.statements.length)
            return parent.statements[index + 1];
    }
}
exports.getNextStatement = getNextStatement;
function getPreviousToken(node, sourceFile) {
    var parent = node.parent;
    while (parent !== undefined && parent.pos === node.pos)
        parent = parent.parent;
    if (parent === undefined)
        return;
    outer: while (true) {
        var children = parent.getChildren(sourceFile);
        for (var i = children.length - 1; i >= 0; --i) {
            var child = children[i];
            if (child.pos < node.pos && child.kind !== ts.SyntaxKind.JSDocComment) {
                if (isTokenKind(child.kind))
                    return child;
                parent = child;
                continue outer;
            }
        }
        return;
    }
}
exports.getPreviousToken = getPreviousToken;
function getNextToken(node, sourceFile) {
    if (sourceFile === void 0) { sourceFile = node.getSourceFile(); }
    if (node.kind === ts.SyntaxKind.SourceFile || node.kind === ts.SyntaxKind.EndOfFileToken)
        return;
    var end = node.end;
    node = node.parent;
    while (node.end === end) {
        if (node.parent === undefined)
            return node.endOfFileToken;
        node = node.parent;
    }
    return getTokenAtPositionWorker(node, end, sourceFile);
}
exports.getNextToken = getNextToken;
function getTokenAtPosition(parent, pos, sourceFile) {
    if (pos < parent.pos || pos >= parent.end)
        return;
    if (isTokenKind(parent.kind))
        return parent;
    if (sourceFile === undefined)
        sourceFile = parent.getSourceFile();
    return getTokenAtPositionWorker(parent, pos, sourceFile);
}
exports.getTokenAtPosition = getTokenAtPosition;
function getTokenAtPositionWorker(node, pos, sourceFile) {
    outer: while (true) {
        for (var _i = 0, _a = node.getChildren(sourceFile); _i < _a.length; _i++) {
            var child = _a[_i];
            if (child.end > pos && child.kind !== ts.SyntaxKind.JSDocComment) {
                if (isTokenKind(child.kind))
                    return child;
                node = child;
                continue outer;
            }
        }
        return;
    }
}
function getCommentAtPosition(sourceFile, pos, parent) {
    if (parent === void 0) { parent = sourceFile; }
    var token = getTokenAtPosition(parent, pos, sourceFile);
    if (token === undefined || token.kind === ts.SyntaxKind.JsxText || pos >= token.end - (ts.tokenToString(token.kind) || '').length)
        return;
    var cb = function (start, end, kind) {
        return pos >= start && pos < end ? { end: end, kind: kind, pos: start } : undefined;
    };
    return token.pos !== 0 && ts.forEachTrailingCommentRange(sourceFile.text, token.pos, cb) ||
        ts.forEachLeadingCommentRange(sourceFile.text, token.pos, cb);
}
exports.getCommentAtPosition = getCommentAtPosition;
function isPositionInComment(sourceFile, pos, parent) {
    return getCommentAtPosition(sourceFile, pos, parent) !== undefined;
}
exports.isPositionInComment = isPositionInComment;
function getPropertyName(propertyName) {
    if (propertyName.kind === ts.SyntaxKind.ComputedPropertyName) {
        if (!node_1.isLiteralExpression(propertyName.expression))
            return;
        return propertyName.expression.text;
    }
    return propertyName.kind === ts.SyntaxKind.Identifier ? getIdentifierText(propertyName) : propertyName.text;
}
exports.getPropertyName = getPropertyName;
function forEachDestructuringIdentifier(pattern, fn) {
    for (var _i = 0, _a = pattern.elements; _i < _a.length; _i++) {
        var element = _a[_i];
        if (element.kind !== ts.SyntaxKind.BindingElement)
            continue;
        var result = void 0;
        if (element.name.kind === ts.SyntaxKind.Identifier) {
            result = fn(element);
        }
        else {
            result = forEachDestructuringIdentifier(element.name, fn);
        }
        if (result)
            return result;
    }
}
exports.forEachDestructuringIdentifier = forEachDestructuringIdentifier;
function forEachDeclaredVariable(declarationList, cb) {
    for (var _i = 0, _a = declarationList.declarations; _i < _a.length; _i++) {
        var declaration = _a[_i];
        var result = void 0;
        if (declaration.name.kind === ts.SyntaxKind.Identifier) {
            result = cb(declaration);
        }
        else {
            result = forEachDestructuringIdentifier(declaration.name, cb);
        }
        if (result)
            return result;
    }
}
exports.forEachDeclaredVariable = forEachDeclaredVariable;
var VariableDeclarationKind;
(function (VariableDeclarationKind) {
    VariableDeclarationKind[VariableDeclarationKind["Var"] = 0] = "Var";
    VariableDeclarationKind[VariableDeclarationKind["Let"] = 1] = "Let";
    VariableDeclarationKind[VariableDeclarationKind["Const"] = 2] = "Const";
})(VariableDeclarationKind = exports.VariableDeclarationKind || (exports.VariableDeclarationKind = {}));
function getVariableDeclarationKind(declarationList) {
    if (declarationList.flags & ts.NodeFlags.Let)
        return 1;
    if (declarationList.flags & ts.NodeFlags.Const)
        return 2;
    return 0;
}
exports.getVariableDeclarationKind = getVariableDeclarationKind;
function isBlockScopedVariableDeclarationList(declarationList) {
    return (declarationList.flags & ts.NodeFlags.BlockScoped) !== 0;
}
exports.isBlockScopedVariableDeclarationList = isBlockScopedVariableDeclarationList;
function isBlockScopedVariableDeclaration(declaration) {
    var parent = declaration.parent;
    return parent.kind === ts.SyntaxKind.CatchClause ||
        isBlockScopedVariableDeclarationList(parent);
}
exports.isBlockScopedVariableDeclaration = isBlockScopedVariableDeclaration;
var ScopeBoundary;
(function (ScopeBoundary) {
    ScopeBoundary[ScopeBoundary["None"] = 0] = "None";
    ScopeBoundary[ScopeBoundary["Function"] = 1] = "Function";
    ScopeBoundary[ScopeBoundary["Block"] = 2] = "Block";
})(ScopeBoundary = exports.ScopeBoundary || (exports.ScopeBoundary = {}));
function isScopeBoundary(node) {
    if (isFunctionScopeBoundary(node))
        return 1;
    if (isBlockScopeBoundary(node))
        return 2;
    return 0;
}
exports.isScopeBoundary = isScopeBoundary;
function isFunctionScopeBoundary(node) {
    switch (node.kind) {
        case ts.SyntaxKind.FunctionExpression:
        case ts.SyntaxKind.ArrowFunction:
        case ts.SyntaxKind.Constructor:
        case ts.SyntaxKind.ModuleDeclaration:
        case ts.SyntaxKind.ClassDeclaration:
        case ts.SyntaxKind.ClassExpression:
        case ts.SyntaxKind.EnumDeclaration:
        case ts.SyntaxKind.MethodDeclaration:
        case ts.SyntaxKind.FunctionDeclaration:
        case ts.SyntaxKind.GetAccessor:
        case ts.SyntaxKind.SetAccessor:
        case ts.SyntaxKind.InterfaceDeclaration:
        case ts.SyntaxKind.TypeAliasDeclaration:
        case ts.SyntaxKind.MethodSignature:
        case ts.SyntaxKind.CallSignature:
        case ts.SyntaxKind.ConstructSignature:
        case ts.SyntaxKind.ConstructorType:
        case ts.SyntaxKind.FunctionType:
        case ts.SyntaxKind.MappedType:
            return true;
        case ts.SyntaxKind.SourceFile:
            return ts.isExternalModule(node);
        default:
            return false;
    }
}
exports.isFunctionScopeBoundary = isFunctionScopeBoundary;
function isBlockScopeBoundary(node) {
    switch (node.kind) {
        case ts.SyntaxKind.Block:
            var parent = node.parent;
            return parent.kind !== ts.SyntaxKind.CatchClause &&
                (parent.kind === ts.SyntaxKind.SourceFile ||
                    !isFunctionScopeBoundary(parent));
        case ts.SyntaxKind.ForStatement:
        case ts.SyntaxKind.ForInStatement:
        case ts.SyntaxKind.ForOfStatement:
        case ts.SyntaxKind.CaseBlock:
        case ts.SyntaxKind.CatchClause:
            return true;
        default:
            return false;
    }
}
exports.isBlockScopeBoundary = isBlockScopeBoundary;
function hasOwnThisReference(node) {
    switch (node.kind) {
        case ts.SyntaxKind.ClassDeclaration:
        case ts.SyntaxKind.ClassExpression:
        case ts.SyntaxKind.FunctionExpression:
            return true;
        case ts.SyntaxKind.FunctionDeclaration:
            return node.body !== undefined;
        case ts.SyntaxKind.MethodDeclaration:
        case ts.SyntaxKind.GetAccessor:
        case ts.SyntaxKind.SetAccessor:
            return node.parent.kind === ts.SyntaxKind.ObjectLiteralExpression;
        default:
            return false;
    }
}
exports.hasOwnThisReference = hasOwnThisReference;
function isFunctionWithBody(node) {
    switch (node.kind) {
        case ts.SyntaxKind.GetAccessor:
        case ts.SyntaxKind.SetAccessor:
        case ts.SyntaxKind.FunctionDeclaration:
        case ts.SyntaxKind.MethodDeclaration:
        case ts.SyntaxKind.Constructor:
            return node.body !== undefined;
        case ts.SyntaxKind.FunctionExpression:
        case ts.SyntaxKind.ArrowFunction:
            return true;
        default:
            return false;
    }
}
exports.isFunctionWithBody = isFunctionWithBody;
function forEachToken(node, cb, sourceFile) {
    if (sourceFile === void 0) { sourceFile = node.getSourceFile(); }
    return (function iterate(child) {
        if (isTokenKind(child.kind))
            return cb(child);
        if (child.kind !== ts.SyntaxKind.JSDocComment)
            return child.getChildren(sourceFile).forEach(iterate);
    })(node);
}
exports.forEachToken = forEachToken;
function forEachTokenWithTrivia(node, cb, sourceFile) {
    if (sourceFile === void 0) { sourceFile = node.getSourceFile(); }
    var fullText = sourceFile.text;
    var scanner = ts.createScanner(sourceFile.languageVersion, false, sourceFile.languageVariant, fullText);
    return forEachToken(node, function (token) {
        var tokenStart = token.kind === ts.SyntaxKind.JsxText ? token.pos : token.getStart(sourceFile);
        if (tokenStart !== token.pos) {
            scanner.setTextPos(token.pos);
            var kind = scanner.scan();
            var pos = scanner.getTokenPos();
            while (pos < tokenStart) {
                var textPos = scanner.getTextPos();
                cb(fullText, kind, { pos: pos, end: textPos }, token.parent);
                if (textPos === tokenStart)
                    break;
                kind = scanner.scan();
                pos = scanner.getTokenPos();
            }
        }
        return cb(fullText, token.kind, { end: token.end, pos: tokenStart }, token.parent);
    }, sourceFile);
}
exports.forEachTokenWithTrivia = forEachTokenWithTrivia;
function forEachComment(node, cb, sourceFile) {
    if (sourceFile === void 0) { sourceFile = node.getSourceFile(); }
    var fullText = sourceFile.text;
    var notJsx = sourceFile.languageVariant !== ts.LanguageVariant.JSX;
    return forEachToken(node, function (token) {
        if (token.kind !== ts.SyntaxKind.JsxText)
            ts.forEachLeadingCommentRange(fullText, token.pos, commentCallback);
        if (notJsx || canHaveTrailingTrivia(token))
            return ts.forEachTrailingCommentRange(fullText, token.end, commentCallback);
    }, sourceFile);
    function commentCallback(pos, end, kind) {
        cb(fullText, { pos: pos, end: end, kind: kind });
    }
}
exports.forEachComment = forEachComment;
function canHaveTrailingTrivia(_a) {
    var kind = _a.kind, parent = _a.parent;
    if (kind === ts.SyntaxKind.CloseBraceToken)
        return parent.kind !== ts.SyntaxKind.JsxExpression ||
            parent.parent.kind !== ts.SyntaxKind.JsxElement && parent.parent.kind !== ts.SyntaxKind.JsxFragment;
    if (kind === ts.SyntaxKind.GreaterThanToken) {
        switch (parent.kind) {
            case ts.SyntaxKind.JsxOpeningElement:
            case ts.SyntaxKind.JsxOpeningFragment:
                return false;
            case ts.SyntaxKind.JsxClosingElement:
            case ts.SyntaxKind.JsxSelfClosingElement:
            case ts.SyntaxKind.JsxClosingFragment:
                switch (parent.parent.parent.kind) {
                    case ts.SyntaxKind.JsxElement:
                    case ts.SyntaxKind.JsxFragment:
                        return false;
                    default:
                        return true;
                }
        }
    }
    return kind !== ts.SyntaxKind.JsxText;
}
function getLineRanges(sourceFile) {
    var lineStarts = sourceFile.getLineStarts();
    var result = [];
    var length = lineStarts.length;
    var sourceText = sourceFile.text;
    var pos = 0;
    for (var i = 1; i < length; ++i) {
        var end = lineStarts[i];
        var lineEnd = end;
        for (; lineEnd > pos; --lineEnd)
            if (!ts.isLineBreak(sourceText.charCodeAt(lineEnd - 1)))
                break;
        result.push({
            pos: pos,
            end: end,
            contentLength: lineEnd - pos,
        });
        pos = end;
    }
    result.push({
        pos: pos,
        end: sourceFile.end,
        contentLength: sourceFile.end - pos,
    });
    return result;
}
exports.getLineRanges = getLineRanges;
var cachedScanner;
function scanToken(text) {
    if (cachedScanner === undefined)
        cachedScanner = ts.createScanner(ts.ScriptTarget.Latest, false);
    cachedScanner.setText(text);
    cachedScanner.scan();
    return cachedScanner;
}
function isValidIdentifier(text) {
    var scan = scanToken(text);
    return scan.isIdentifier() && scan.getTextPos() === text.length && scan.getTokenPos() === 0;
}
exports.isValidIdentifier = isValidIdentifier;
function isValidPropertyAccess(text) {
    if (!ts.isIdentifierStart(text.charCodeAt(0), ts.ScriptTarget.Latest))
        return false;
    for (var i = 1; i < text.length; ++i)
        if (!ts.isIdentifierPart(text.charCodeAt(i), ts.ScriptTarget.Latest))
            return false;
    return true;
}
exports.isValidPropertyAccess = isValidPropertyAccess;
function isValidPropertyName(text) {
    if (isValidPropertyAccess(text))
        return true;
    var scan = scanToken(text);
    return scan.getTextPos() === text.length &&
        scan.getToken() === ts.SyntaxKind.NumericLiteral && scan.getTokenValue() === text;
}
exports.isValidPropertyName = isValidPropertyName;
function isValidNumericLiteral(text) {
    var scan = scanToken(text);
    return scan.getToken() === ts.SyntaxKind.NumericLiteral && scan.getTextPos() === text.length && scan.getTokenPos() === 0;
}
exports.isValidNumericLiteral = isValidNumericLiteral;
function isSameLine(sourceFile, pos1, pos2) {
    return ts.getLineAndCharacterOfPosition(sourceFile, pos1).line === ts.getLineAndCharacterOfPosition(sourceFile, pos2).line;
}
exports.isSameLine = isSameLine;
var SideEffectOptions;
(function (SideEffectOptions) {
    SideEffectOptions[SideEffectOptions["None"] = 0] = "None";
    SideEffectOptions[SideEffectOptions["TaggedTemplate"] = 1] = "TaggedTemplate";
    SideEffectOptions[SideEffectOptions["Constructor"] = 2] = "Constructor";
    SideEffectOptions[SideEffectOptions["JsxElement"] = 4] = "JsxElement";
})(SideEffectOptions = exports.SideEffectOptions || (exports.SideEffectOptions = {}));
function hasSideEffects(node, options) {
    switch (node.kind) {
        case ts.SyntaxKind.CallExpression:
        case ts.SyntaxKind.PostfixUnaryExpression:
        case ts.SyntaxKind.AwaitExpression:
        case ts.SyntaxKind.YieldExpression:
        case ts.SyntaxKind.DeleteExpression:
            return true;
        case ts.SyntaxKind.TypeAssertionExpression:
        case ts.SyntaxKind.AsExpression:
        case ts.SyntaxKind.ParenthesizedExpression:
        case ts.SyntaxKind.NonNullExpression:
        case ts.SyntaxKind.VoidExpression:
        case ts.SyntaxKind.TypeOfExpression:
        case ts.SyntaxKind.PropertyAccessExpression:
        case ts.SyntaxKind.SpreadElement:
        case ts.SyntaxKind.PartiallyEmittedExpression:
            return hasSideEffects(node.expression, options);
        case ts.SyntaxKind.BinaryExpression:
            return isAssignmentKind(node.operatorToken.kind) ||
                hasSideEffects(node.left, options) ||
                hasSideEffects(node.right, options);
        case ts.SyntaxKind.PrefixUnaryExpression:
            switch (node.operator) {
                case ts.SyntaxKind.PlusPlusToken:
                case ts.SyntaxKind.MinusMinusToken:
                    return true;
                default:
                    return hasSideEffects(node.operand, options);
            }
        case ts.SyntaxKind.ElementAccessExpression:
            return hasSideEffects(node.expression, options) ||
                node.argumentExpression !== undefined &&
                    hasSideEffects(node.argumentExpression, options);
        case ts.SyntaxKind.ConditionalExpression:
            return hasSideEffects(node.condition, options) ||
                hasSideEffects(node.whenTrue, options) ||
                hasSideEffects(node.whenFalse, options);
        case ts.SyntaxKind.NewExpression:
            if (options & 2 || hasSideEffects(node.expression, options))
                return true;
            if (node.arguments !== undefined)
                for (var _i = 0, _a = node.arguments; _i < _a.length; _i++) {
                    var child = _a[_i];
                    if (hasSideEffects(child, options))
                        return true;
                }
            return false;
        case ts.SyntaxKind.TaggedTemplateExpression:
            if (options & 1 || hasSideEffects(node.tag, options))
                return true;
            node = node.template;
        case ts.SyntaxKind.TemplateExpression:
            for (var _b = 0, _c = node.templateSpans; _b < _c.length; _b++) {
                var child = _c[_b];
                if (hasSideEffects(child.expression, options))
                    return true;
            }
            return false;
        case ts.SyntaxKind.ClassExpression:
            return classExpressionHasSideEffects(node, options);
        case ts.SyntaxKind.ArrayLiteralExpression:
            for (var _d = 0, _e = node.elements; _d < _e.length; _d++) {
                var child = _e[_d];
                if (hasSideEffects(child, options))
                    return true;
            }
            return false;
        case ts.SyntaxKind.ObjectLiteralExpression:
            for (var _f = 0, _g = node.properties; _f < _g.length; _f++) {
                var child = _g[_f];
                if (child.name !== undefined && child.name.kind === ts.SyntaxKind.ComputedPropertyName &&
                    hasSideEffects(child.name.expression, options))
                    return true;
                switch (child.kind) {
                    case ts.SyntaxKind.PropertyAssignment:
                        if (hasSideEffects(child.initializer, options))
                            return true;
                        break;
                    case ts.SyntaxKind.SpreadAssignment:
                        if (hasSideEffects(child.expression, options))
                            return true;
                }
            }
            return false;
        case ts.SyntaxKind.JsxExpression:
            return node.expression !== undefined && hasSideEffects(node.expression, options);
        case ts.SyntaxKind.JsxElement:
        case ts.SyntaxKind.JsxFragment:
            for (var _h = 0, _j = node.children; _h < _j.length; _h++) {
                var child = _j[_h];
                if (child.kind !== ts.SyntaxKind.JsxText && hasSideEffects(child, options))
                    return true;
            }
            if (node.kind === ts.SyntaxKind.JsxFragment)
                return false;
            node = node.openingElement;
        case ts.SyntaxKind.JsxSelfClosingElement:
        case ts.SyntaxKind.JsxOpeningElement:
            if (options & 4)
                return true;
            for (var _k = 0, _l = getJsxAttributes(node); _k < _l.length; _k++) {
                var child = _l[_k];
                if (child.kind === ts.SyntaxKind.JsxSpreadAttribute) {
                    if (hasSideEffects(child.expression, options))
                        return true;
                }
                else if (child.initializer !== undefined && hasSideEffects(child.initializer, options)) {
                    return true;
                }
            }
            return false;
        case ts.SyntaxKind.CommaListExpression:
            for (var _m = 0, _o = node.elements; _m < _o.length; _m++) {
                var child = _o[_m];
                if (hasSideEffects(child, options))
                    return true;
            }
            return false;
        default:
            return false;
    }
}
exports.hasSideEffects = hasSideEffects;
function getJsxAttributes(openElement) {
    var attributes = openElement.attributes;
    return Array.isArray(attributes) ? attributes : attributes.properties;
}
function classExpressionHasSideEffects(node, options) {
    if (node.heritageClauses !== undefined && node.heritageClauses[0].token === ts.SyntaxKind.ExtendsKeyword)
        for (var _i = 0, _a = node.heritageClauses[0].types; _i < _a.length; _i++) {
            var base = _a[_i];
            if (hasSideEffects(base.expression, options))
                return true;
        }
    for (var _b = 0, _c = node.members; _b < _c.length; _b++) {
        var child = _c[_b];
        if (child.name !== undefined && child.name.kind === ts.SyntaxKind.ComputedPropertyName &&
            hasSideEffects(child.name.expression, options) ||
            node_1.isPropertyDeclaration(child) && child.initializer !== undefined &&
                hasSideEffects(child.initializer, options))
            return true;
    }
    return false;
}
function getDeclarationOfBindingElement(node) {
    var parent = node.parent.parent;
    while (parent.kind === ts.SyntaxKind.BindingElement)
        parent = parent.parent.parent;
    return parent;
}
exports.getDeclarationOfBindingElement = getDeclarationOfBindingElement;
function isExpressionValueUsed(node) {
    while (true) {
        var parent = node.parent;
        switch (parent.kind) {
            case ts.SyntaxKind.CallExpression:
            case ts.SyntaxKind.NewExpression:
            case ts.SyntaxKind.ElementAccessExpression:
            case ts.SyntaxKind.WhileStatement:
            case ts.SyntaxKind.DoStatement:
            case ts.SyntaxKind.WithStatement:
            case ts.SyntaxKind.ThrowStatement:
            case ts.SyntaxKind.ReturnStatement:
            case ts.SyntaxKind.JsxExpression:
            case ts.SyntaxKind.JsxSpreadAttribute:
            case ts.SyntaxKind.JsxElement:
            case ts.SyntaxKind.JsxFragment:
            case ts.SyntaxKind.JsxSelfClosingElement:
            case ts.SyntaxKind.ComputedPropertyName:
            case ts.SyntaxKind.ArrowFunction:
            case ts.SyntaxKind.ExportSpecifier:
            case ts.SyntaxKind.ExportAssignment:
            case ts.SyntaxKind.ImportDeclaration:
            case ts.SyntaxKind.ExternalModuleReference:
            case ts.SyntaxKind.Decorator:
            case ts.SyntaxKind.TaggedTemplateExpression:
            case ts.SyntaxKind.TemplateSpan:
            case ts.SyntaxKind.ExpressionWithTypeArguments:
            case ts.SyntaxKind.TypeOfExpression:
            case ts.SyntaxKind.AwaitExpression:
            case ts.SyntaxKind.YieldExpression:
            case ts.SyntaxKind.LiteralType:
            case ts.SyntaxKind.JsxAttributes:
            case ts.SyntaxKind.JsxOpeningElement:
            case ts.SyntaxKind.JsxClosingElement:
            case ts.SyntaxKind.IfStatement:
            case ts.SyntaxKind.CaseClause:
            case ts.SyntaxKind.SwitchStatement:
                return true;
            case ts.SyntaxKind.PropertyAccessExpression:
                return parent.expression === node;
            case ts.SyntaxKind.QualifiedName:
                return parent.left === node;
            case ts.SyntaxKind.ShorthandPropertyAssignment:
                return parent.objectAssignmentInitializer === node ||
                    !isInDestructuringAssignment(parent);
            case ts.SyntaxKind.PropertyAssignment:
                return parent.initializer === node && !isInDestructuringAssignment(parent);
            case ts.SyntaxKind.SpreadAssignment:
            case ts.SyntaxKind.SpreadElement:
            case ts.SyntaxKind.ArrayLiteralExpression:
                return !isInDestructuringAssignment(parent);
            case ts.SyntaxKind.ParenthesizedExpression:
            case ts.SyntaxKind.AsExpression:
            case ts.SyntaxKind.TypeAssertionExpression:
            case ts.SyntaxKind.PostfixUnaryExpression:
            case ts.SyntaxKind.PrefixUnaryExpression:
            case ts.SyntaxKind.NonNullExpression:
                node = parent;
                break;
            case ts.SyntaxKind.ForStatement:
                return parent.condition === node;
            case ts.SyntaxKind.ForInStatement:
            case ts.SyntaxKind.ForOfStatement:
                return parent.expression === node;
            case ts.SyntaxKind.ConditionalExpression:
                if (parent.condition === node)
                    return true;
                node = parent;
                break;
            case ts.SyntaxKind.PropertyDeclaration:
            case ts.SyntaxKind.BindingElement:
            case ts.SyntaxKind.VariableDeclaration:
            case ts.SyntaxKind.Parameter:
            case ts.SyntaxKind.EnumMember:
                return parent.initializer === node;
            case ts.SyntaxKind.ImportEqualsDeclaration:
                return parent.moduleReference === node;
            case ts.SyntaxKind.CommaListExpression:
                if (parent.elements[parent.elements.length - 1] !== node)
                    return false;
                node = parent;
                break;
            case ts.SyntaxKind.BinaryExpression:
                if (parent.right === node) {
                    if (parent.operatorToken.kind === ts.SyntaxKind.CommaToken) {
                        node = parent;
                        break;
                    }
                    return true;
                }
                switch (parent.operatorToken.kind) {
                    case ts.SyntaxKind.CommaToken:
                    case ts.SyntaxKind.EqualsToken:
                        return false;
                    case ts.SyntaxKind.EqualsEqualsEqualsToken:
                    case ts.SyntaxKind.EqualsEqualsToken:
                    case ts.SyntaxKind.ExclamationEqualsEqualsToken:
                    case ts.SyntaxKind.ExclamationEqualsToken:
                    case ts.SyntaxKind.InstanceOfKeyword:
                    case ts.SyntaxKind.PlusToken:
                    case ts.SyntaxKind.MinusToken:
                    case ts.SyntaxKind.AsteriskToken:
                    case ts.SyntaxKind.SlashToken:
                    case ts.SyntaxKind.PercentToken:
                    case ts.SyntaxKind.AsteriskAsteriskToken:
                    case ts.SyntaxKind.GreaterThanToken:
                    case ts.SyntaxKind.GreaterThanGreaterThanToken:
                    case ts.SyntaxKind.GreaterThanGreaterThanGreaterThanToken:
                    case ts.SyntaxKind.GreaterThanEqualsToken:
                    case ts.SyntaxKind.LessThanToken:
                    case ts.SyntaxKind.LessThanLessThanToken:
                    case ts.SyntaxKind.LessThanEqualsToken:
                    case ts.SyntaxKind.AmpersandToken:
                    case ts.SyntaxKind.BarToken:
                    case ts.SyntaxKind.CaretToken:
                    case ts.SyntaxKind.BarBarToken:
                    case ts.SyntaxKind.AmpersandAmpersandToken:
                    case ts.SyntaxKind.InKeyword:
                        return true;
                    default:
                        node = parent;
                }
                break;
            default:
                return false;
        }
    }
}
exports.isExpressionValueUsed = isExpressionValueUsed;
function isInDestructuringAssignment(node) {
    switch (node.kind) {
        case ts.SyntaxKind.ShorthandPropertyAssignment:
            if (node.objectAssignmentInitializer !== undefined)
                return true;
        case ts.SyntaxKind.PropertyAssignment:
        case ts.SyntaxKind.SpreadAssignment:
            node = node.parent;
            break;
        case ts.SyntaxKind.SpreadElement:
            if (node.parent.kind !== ts.SyntaxKind.ArrayLiteralExpression)
                return false;
            node = node.parent;
    }
    while (true) {
        switch (node.parent.kind) {
            case ts.SyntaxKind.BinaryExpression:
                return node.parent.left === node &&
                    node.parent.operatorToken.kind === ts.SyntaxKind.EqualsToken;
            case ts.SyntaxKind.ForOfStatement:
                return node.parent.initializer === node;
            case ts.SyntaxKind.ArrayLiteralExpression:
            case ts.SyntaxKind.ObjectLiteralExpression:
                node = node.parent;
                break;
            case ts.SyntaxKind.SpreadAssignment:
            case ts.SyntaxKind.PropertyAssignment:
                node = node.parent.parent;
                break;
            case ts.SyntaxKind.SpreadElement:
                if (node.parent.parent.kind !== ts.SyntaxKind.ArrayLiteralExpression)
                    return false;
                node = node.parent.parent;
                break;
            default:
                return false;
        }
    }
}
function isReassignmentTarget(node) {
    var parent = node.parent;
    switch (parent.kind) {
        case ts.SyntaxKind.PostfixUnaryExpression:
        case ts.SyntaxKind.DeleteExpression:
            return true;
        case ts.SyntaxKind.PrefixUnaryExpression:
            return parent.operator === ts.SyntaxKind.PlusPlusToken ||
                parent.operator === ts.SyntaxKind.MinusMinusToken;
        case ts.SyntaxKind.BinaryExpression:
            return parent.left === node &&
                isAssignmentKind(parent.operatorToken.kind);
        case ts.SyntaxKind.ShorthandPropertyAssignment:
            return parent.name === node &&
                isInDestructuringAssignment(parent);
        case ts.SyntaxKind.PropertyAssignment:
            return parent.initializer === node &&
                isInDestructuringAssignment(parent);
        case ts.SyntaxKind.ObjectLiteralExpression:
        case ts.SyntaxKind.ArrayLiteralExpression:
        case ts.SyntaxKind.SpreadElement:
        case ts.SyntaxKind.SpreadAssignment:
            return isInDestructuringAssignment(parent);
        case ts.SyntaxKind.ParenthesizedExpression:
            return isReassignmentTarget(parent);
        case ts.SyntaxKind.ForOfStatement:
        case ts.SyntaxKind.ForInStatement:
            return parent.initializer === node;
    }
    return false;
}
exports.isReassignmentTarget = isReassignmentTarget;
function getIdentifierText(node) {
    return ts.unescapeIdentifier(node.text);
}
exports.getIdentifierText = getIdentifierText;
function canHaveJsDoc(node) {
    var kind = node.kind;
    switch (kind) {
        case ts.SyntaxKind.Parameter:
        case ts.SyntaxKind.CallSignature:
        case ts.SyntaxKind.ConstructSignature:
        case ts.SyntaxKind.MethodSignature:
        case ts.SyntaxKind.PropertySignature:
        case ts.SyntaxKind.ArrowFunction:
        case ts.SyntaxKind.ParenthesizedExpression:
        case ts.SyntaxKind.SpreadAssignment:
        case ts.SyntaxKind.ShorthandPropertyAssignment:
        case ts.SyntaxKind.PropertyAssignment:
        case ts.SyntaxKind.FunctionExpression:
        case ts.SyntaxKind.FunctionDeclaration:
        case ts.SyntaxKind.LabeledStatement:
        case ts.SyntaxKind.ExpressionStatement:
        case ts.SyntaxKind.VariableStatement:
        case ts.SyntaxKind.Constructor:
        case ts.SyntaxKind.MethodDeclaration:
        case ts.SyntaxKind.PropertyDeclaration:
        case ts.SyntaxKind.GetAccessor:
        case ts.SyntaxKind.SetAccessor:
        case ts.SyntaxKind.ClassDeclaration:
        case ts.SyntaxKind.ClassExpression:
        case ts.SyntaxKind.InterfaceDeclaration:
        case ts.SyntaxKind.TypeAliasDeclaration:
        case ts.SyntaxKind.EnumMember:
        case ts.SyntaxKind.EnumDeclaration:
        case ts.SyntaxKind.ModuleDeclaration:
        case ts.SyntaxKind.ImportEqualsDeclaration:
        case ts.SyntaxKind.IndexSignature:
        case ts.SyntaxKind.FunctionType:
        case ts.SyntaxKind.ConstructorType:
        case ts.SyntaxKind.JSDocFunctionType:
        case ts.SyntaxKind.EndOfFileToken:
            return true;
        default:
            return false;
    }
}
exports.canHaveJsDoc = canHaveJsDoc;
function getJsDoc(node, sourceFile) {
    if (node.kind === ts.SyntaxKind.EndOfFileToken)
        return parseJsDocWorker(node, sourceFile || node.parent);
    var result = [];
    for (var _i = 0, _a = node.getChildren(sourceFile); _i < _a.length; _i++) {
        var child = _a[_i];
        if (!node_1.isJsDoc(child))
            break;
        result.push(child);
    }
    return result;
}
exports.getJsDoc = getJsDoc;
function parseJsDocOfNode(node, considerTrailingComments, sourceFile) {
    if (sourceFile === void 0) { sourceFile = node.getSourceFile(); }
    if (canHaveJsDoc(node) && node.kind !== ts.SyntaxKind.EndOfFileToken) {
        var result = getJsDoc(node, sourceFile);
        if (result.length !== 0 || !considerTrailingComments)
            return result;
    }
    return parseJsDocWorker(node, sourceFile, considerTrailingComments);
}
exports.parseJsDocOfNode = parseJsDocOfNode;
function parseJsDocWorker(node, sourceFile, considerTrailingComments) {
    var nodeStart = node.getStart(sourceFile);
    var start = ts[considerTrailingComments && isSameLine(sourceFile, node.pos, nodeStart)
        ? 'forEachTrailingCommentRange'
        : 'forEachLeadingCommentRange'](sourceFile.text, node.pos, function (pos, _end, kind) { return kind === ts.SyntaxKind.MultiLineCommentTrivia && sourceFile.text[pos + 2] === '*' ? { pos: pos } : undefined; });
    if (start === undefined)
        return [];
    var startPos = start.pos;
    var text = sourceFile.text.slice(startPos, nodeStart);
    var newSourceFile = ts.createSourceFile('jsdoc.ts', text + "var a;", sourceFile.languageVersion);
    var result = getJsDoc(newSourceFile.statements[0], newSourceFile);
    for (var _i = 0, result_1 = result; _i < result_1.length; _i++) {
        var doc = result_1[_i];
        updateNode(doc, node);
    }
    return result;
    function updateNode(n, parent) {
        n.pos += startPos;
        n.end += startPos;
        n.parent = parent;
        return ts.forEachChild(n, function (child) { return updateNode(child, n); }, function (children) {
            children.pos += startPos;
            children.end += startPos;
            for (var _i = 0, children_1 = children; _i < children_1.length; _i++) {
                var child = children_1[_i];
                updateNode(child, n);
            }
        });
    }
}
var ImportKind;
(function (ImportKind) {
    ImportKind[ImportKind["ImportDeclaration"] = 1] = "ImportDeclaration";
    ImportKind[ImportKind["ImportEquals"] = 2] = "ImportEquals";
    ImportKind[ImportKind["ExportFrom"] = 4] = "ExportFrom";
    ImportKind[ImportKind["DynamicImport"] = 8] = "DynamicImport";
    ImportKind[ImportKind["Require"] = 16] = "Require";
    ImportKind[ImportKind["All"] = 31] = "All";
    ImportKind[ImportKind["AllImports"] = 27] = "AllImports";
    ImportKind[ImportKind["AllStaticImports"] = 3] = "AllStaticImports";
    ImportKind[ImportKind["AllImportExpressions"] = 24] = "AllImportExpressions";
    ImportKind[ImportKind["AllRequireLike"] = 18] = "AllRequireLike";
})(ImportKind = exports.ImportKind || (exports.ImportKind = {}));
var ImportOptions;
(function (ImportOptions) {
    ImportOptions[ImportOptions["ImportDeclaration"] = 1] = "ImportDeclaration";
    ImportOptions[ImportOptions["ImportEquals"] = 2] = "ImportEquals";
    ImportOptions[ImportOptions["ExportFrom"] = 4] = "ExportFrom";
    ImportOptions[ImportOptions["DynamicImport"] = 8] = "DynamicImport";
    ImportOptions[ImportOptions["Require"] = 16] = "Require";
    ImportOptions[ImportOptions["All"] = 31] = "All";
    ImportOptions[ImportOptions["AllImports"] = 27] = "AllImports";
    ImportOptions[ImportOptions["AllStaticImports"] = 3] = "AllStaticImports";
    ImportOptions[ImportOptions["AllDynamic"] = 24] = "AllDynamic";
    ImportOptions[ImportOptions["AllRequireLike"] = 18] = "AllRequireLike";
})(ImportOptions = exports.ImportOptions || (exports.ImportOptions = {}));
function findImports(sourceFile, options) {
    return new ImportFinder(sourceFile, options).find();
}
exports.findImports = findImports;
var ImportFinder = (function () {
    function ImportFinder(_sourceFile, _options) {
        var _this = this;
        this._sourceFile = _sourceFile;
        this._options = _options;
        this._result = [];
        this._findDynamic = function (node) {
            if (node_1.isCallExpression(node) && node.arguments.length === 1 &&
                (node.expression.kind === ts.SyntaxKind.ImportKeyword && _this._options & 8 ||
                    _this._options & 16 && node.expression.kind === ts.SyntaxKind.Identifier &&
                        node.expression.text === 'require'))
                _this._addImport(node.arguments[0]);
            ts.forEachChild(node, _this._findDynamic);
        };
    }
    ImportFinder.prototype.find = function () {
        if (this._sourceFile.isDeclarationFile)
            this._options &= ~24;
        this._findImports(this._sourceFile.statements);
        return this._result;
    };
    ImportFinder.prototype._findImports = function (statements) {
        for (var _i = 0, statements_1 = statements; _i < statements_1.length; _i++) {
            var statement = statements_1[_i];
            if (node_1.isImportDeclaration(statement)) {
                if (this._options & 1)
                    this._addImport(statement.moduleSpecifier);
            }
            else if (node_1.isImportEqualsDeclaration(statement)) {
                if (this._options & 2 &&
                    statement.moduleReference.kind === ts.SyntaxKind.ExternalModuleReference &&
                    statement.moduleReference.expression !== undefined)
                    this._addImport(statement.moduleReference.expression);
            }
            else if (node_1.isExportDeclaration(statement)) {
                if (statement.moduleSpecifier !== undefined && this._options & 4)
                    this._addImport(statement.moduleSpecifier);
            }
            else if (node_1.isModuleDeclaration(statement) &&
                this._options & (3 | 4) &&
                statement.body !== undefined && statement.name.kind === ts.SyntaxKind.StringLiteral &&
                ts.isExternalModule(this._sourceFile)) {
                this._findImports(statement.body.statements);
            }
            else if (this._options & 24) {
                ts.forEachChild(statement, this._findDynamic);
            }
        }
    };
    ImportFinder.prototype._addImport = function (expression) {
        if (node_1.isTextualLiteral(expression))
            this._result.push(expression);
    };
    return ImportFinder;
}());
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