+++ /dev/null
-"use strict";
-Object.defineProperty(exports, "__esModule", { value: true });
-const ts = require("typescript");
-const node_1 = require("../typeguard/node");
-const _3_2_1 = require("../typeguard/3.2");
-const type_1 = require("./type");
-function getChildOfKind(node, kind, sourceFile) {
- for (const child of node.getChildren(sourceFile))
- 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 isKeywordKind(kind) {
- return kind >= ts.SyntaxKind.FirstKeyword && kind <= ts.SyntaxKind.LastKeyword;
-}
-exports.isKeywordKind = isKeywordKind;
-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 (const modifier of node.modifiers)
- if (modifier.kind === kind)
- return modifier;
-}
-exports.getModifier = getModifier;
-function hasModifier(modifiers, ...kinds) {
- if (modifiers === undefined)
- return false;
- for (const modifier of modifiers)
- if (kinds.includes(modifier.kind))
- 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 getPreviousStatement(statement) {
- const parent = statement.parent;
- if (node_1.isBlockLike(parent)) {
- const index = parent.statements.indexOf(statement);
- if (index > 0)
- return parent.statements[index - 1];
- }
-}
-exports.getPreviousStatement = getPreviousStatement;
-function getNextStatement(statement) {
- const parent = statement.parent;
- if (node_1.isBlockLike(parent)) {
- const index = parent.statements.indexOf(statement);
- if (index < parent.statements.length)
- return parent.statements[index + 1];
- }
-}
-exports.getNextStatement = getNextStatement;
-function getPreviousToken(node, sourceFile) {
- let parent = node.parent;
- while (parent !== undefined && parent.pos === node.pos)
- parent = parent.parent;
- if (parent === undefined)
- return;
- outer: while (true) {
- const children = parent.getChildren(sourceFile);
- for (let i = children.length - 1; i >= 0; --i) {
- const 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 = node.getSourceFile()) {
- if (node.kind === ts.SyntaxKind.SourceFile || node.kind === ts.SyntaxKind.EndOfFileToken)
- return;
- const 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, false);
-}
-exports.getNextToken = getNextToken;
-function getTokenAtPosition(parent, pos, sourceFile, allowJsDoc) {
- 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, allowJsDoc === true);
-}
-exports.getTokenAtPosition = getTokenAtPosition;
-function getTokenAtPositionWorker(node, pos, sourceFile, allowJsDoc) {
- outer: while (true) {
- for (const child of node.getChildren(sourceFile)) {
- if (child.end > pos && (allowJsDoc || child.kind !== ts.SyntaxKind.JSDocComment)) {
- if (isTokenKind(child.kind))
- return child;
- node = child;
- continue outer;
- }
- }
- return;
- }
-}
-function getCommentAtPosition(sourceFile, pos, parent = sourceFile) {
- const token = getTokenAtPosition(parent, pos, sourceFile);
- if (token === undefined || token.kind === ts.SyntaxKind.JsxText || pos >= token.end - (ts.tokenToString(token.kind) || '').length)
- return;
- const startPos = token.pos === 0
- ? (ts.getShebang(sourceFile.text) || '').length
- : token.pos;
- return startPos !== 0 && ts.forEachTrailingCommentRange(sourceFile.text, startPos, commentAtPositionCallback, pos) ||
- ts.forEachLeadingCommentRange(sourceFile.text, startPos, commentAtPositionCallback, pos);
-}
-exports.getCommentAtPosition = getCommentAtPosition;
-function commentAtPositionCallback(pos, end, kind, _nl, at) {
- return at >= pos && at < end ? { pos, end, kind } : undefined;
-}
-function isPositionInComment(sourceFile, pos, parent) {
- return getCommentAtPosition(sourceFile, pos, parent) !== undefined;
-}
-exports.isPositionInComment = isPositionInComment;
-function commentText(sourceText, comment) {
- return sourceText.substring(comment.pos + 2, comment.kind === ts.SyntaxKind.SingleLineCommentTrivia ? comment.end : comment.end - 2);
-}
-exports.commentText = commentText;
-function getWrappedNodeAtPosition(wrap, pos) {
- if (wrap.node.pos > pos || wrap.node.end <= pos)
- return;
- outer: while (true) {
- for (const child of wrap.children) {
- if (child.node.pos > pos)
- return wrap;
- if (child.node.end > pos) {
- wrap = child;
- continue outer;
- }
- }
- return wrap;
- }
-}
-exports.getWrappedNodeAtPosition = getWrappedNodeAtPosition;
-function getPropertyName(propertyName) {
- if (propertyName.kind === ts.SyntaxKind.ComputedPropertyName) {
- if (!node_1.isLiteralExpression(propertyName.expression))
- return;
- if (_3_2_1.isBigIntLiteral(propertyName.expression))
- return propertyName.expression.text.slice(0, -1);
- return propertyName.expression.text;
- }
- return propertyName.text;
-}
-exports.getPropertyName = getPropertyName;
-function forEachDestructuringIdentifier(pattern, fn) {
- for (const element of pattern.elements) {
- if (element.kind !== ts.SyntaxKind.BindingElement)
- continue;
- let result;
- 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 (const declaration of declarationList.declarations) {
- let result;
- 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) {
- const parent = declaration.parent;
- return parent.kind === ts.SyntaxKind.CatchClause ||
- isBlockScopedVariableDeclarationList(parent);
-}
-exports.isBlockScopedVariableDeclaration = isBlockScopedVariableDeclaration;
-function isBlockScopedDeclarationStatement(statement) {
- switch (statement.kind) {
- case ts.SyntaxKind.VariableStatement:
- return isBlockScopedVariableDeclarationList(statement.declarationList);
- case ts.SyntaxKind.ClassDeclaration:
- case ts.SyntaxKind.EnumDeclaration:
- case ts.SyntaxKind.InterfaceDeclaration:
- case ts.SyntaxKind.TypeAliasDeclaration:
- return true;
- default:
- return false;
- }
-}
-exports.isBlockScopedDeclarationStatement = isBlockScopedDeclarationStatement;
-function isInSingleStatementContext(statement) {
- switch (statement.parent.kind) {
- case ts.SyntaxKind.ForStatement:
- case ts.SyntaxKind.ForInStatement:
- case ts.SyntaxKind.ForOfStatement:
- case ts.SyntaxKind.WhileStatement:
- case ts.SyntaxKind.DoStatement:
- case ts.SyntaxKind.IfStatement:
- case ts.SyntaxKind.WithStatement:
- case ts.SyntaxKind.LabeledStatement:
- return true;
- default:
- return false;
- }
-}
-exports.isInSingleStatementContext = isInSingleStatementContext;
-var ScopeBoundary;
-(function (ScopeBoundary) {
- ScopeBoundary[ScopeBoundary["None"] = 0] = "None";
- ScopeBoundary[ScopeBoundary["Function"] = 1] = "Function";
- ScopeBoundary[ScopeBoundary["Block"] = 2] = "Block";
- ScopeBoundary[ScopeBoundary["Type"] = 4] = "Type";
- ScopeBoundary[ScopeBoundary["ConditionalType"] = 8] = "ConditionalType";
-})(ScopeBoundary = exports.ScopeBoundary || (exports.ScopeBoundary = {}));
-var ScopeBoundarySelector;
-(function (ScopeBoundarySelector) {
- ScopeBoundarySelector[ScopeBoundarySelector["Function"] = 1] = "Function";
- ScopeBoundarySelector[ScopeBoundarySelector["Block"] = 3] = "Block";
- ScopeBoundarySelector[ScopeBoundarySelector["Type"] = 7] = "Type";
- ScopeBoundarySelector[ScopeBoundarySelector["InferType"] = 8] = "InferType";
-})(ScopeBoundarySelector = exports.ScopeBoundarySelector || (exports.ScopeBoundarySelector = {}));
-function isScopeBoundary(node) {
- return isFunctionScopeBoundary(node) || isBlockScopeBoundary(node) || isTypeScopeBoundary(node);
-}
-exports.isScopeBoundary = isScopeBoundary;
-function isTypeScopeBoundary(node) {
- switch (node.kind) {
- case ts.SyntaxKind.InterfaceDeclaration:
- case ts.SyntaxKind.TypeAliasDeclaration:
- case ts.SyntaxKind.MappedType:
- return 4;
- case ts.SyntaxKind.ConditionalType:
- return 8;
- default:
- return 0;
- }
-}
-exports.isTypeScopeBoundary = isTypeScopeBoundary;
-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.MethodSignature:
- case ts.SyntaxKind.CallSignature:
- case ts.SyntaxKind.ConstructSignature:
- case ts.SyntaxKind.ConstructorType:
- case ts.SyntaxKind.FunctionType:
- return 1;
- case ts.SyntaxKind.SourceFile:
- return ts.isExternalModule(node) ? 1 : 0;
- default:
- return 0;
- }
-}
-exports.isFunctionScopeBoundary = isFunctionScopeBoundary;
-function isBlockScopeBoundary(node) {
- switch (node.kind) {
- case ts.SyntaxKind.Block:
- const parent = node.parent;
- return parent.kind !== ts.SyntaxKind.CatchClause &&
- (parent.kind === ts.SyntaxKind.SourceFile ||
- !isFunctionScopeBoundary(parent))
- ? 2
- : 0;
- case ts.SyntaxKind.ForStatement:
- case ts.SyntaxKind.ForInStatement:
- case ts.SyntaxKind.ForOfStatement:
- case ts.SyntaxKind.CaseBlock:
- case ts.SyntaxKind.CatchClause:
- case ts.SyntaxKind.WithStatement:
- return 2;
- default:
- return 0;
- }
-}
-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 = 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 = node.getSourceFile()) {
- const fullText = sourceFile.text;
- const scanner = ts.createScanner(sourceFile.languageVersion, false, sourceFile.languageVariant, fullText);
- return forEachToken(node, (token) => {
- const tokenStart = token.kind === ts.SyntaxKind.JsxText || token.pos === token.end ? token.pos : token.getStart(sourceFile);
- if (tokenStart !== token.pos) {
- scanner.setTextPos(token.pos);
- let kind = scanner.scan();
- let pos = scanner.getTokenPos();
- while (pos < tokenStart) {
- const textPos = scanner.getTextPos();
- cb(fullText, kind, { 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 = node.getSourceFile()) {
- const fullText = sourceFile.text;
- const notJsx = sourceFile.languageVariant !== ts.LanguageVariant.JSX;
- return forEachToken(node, (token) => {
- if (token.pos === token.end)
- return;
- if (token.kind !== ts.SyntaxKind.JsxText)
- ts.forEachLeadingCommentRange(fullText, token.pos === 0 ? (ts.getShebang(fullText) || '').length : token.pos, commentCallback);
- if (notJsx || canHaveTrailingTrivia(token))
- return ts.forEachTrailingCommentRange(fullText, token.end, commentCallback);
- }, sourceFile);
- function commentCallback(pos, end, kind) {
- cb(fullText, { pos, end, kind });
- }
-}
-exports.forEachComment = forEachComment;
-function canHaveTrailingTrivia(token) {
- switch (token.kind) {
- case ts.SyntaxKind.CloseBraceToken:
- return token.parent.kind !== ts.SyntaxKind.JsxExpression || !isJsxElementOrFragment(token.parent.parent);
- case ts.SyntaxKind.GreaterThanToken:
- switch (token.parent.kind) {
- case ts.SyntaxKind.JsxOpeningElement:
- return token.end !== token.parent.end;
- case ts.SyntaxKind.JsxOpeningFragment:
- return false;
- case ts.SyntaxKind.JsxSelfClosingElement:
- return token.end !== token.parent.end ||
- !isJsxElementOrFragment(token.parent.parent);
- case ts.SyntaxKind.JsxClosingElement:
- case ts.SyntaxKind.JsxClosingFragment:
- return !isJsxElementOrFragment(token.parent.parent.parent);
- }
- }
- return true;
-}
-function isJsxElementOrFragment(node) {
- return node.kind === ts.SyntaxKind.JsxElement || node.kind === ts.SyntaxKind.JsxFragment;
-}
-function getLineRanges(sourceFile) {
- const lineStarts = sourceFile.getLineStarts();
- const result = [];
- const length = lineStarts.length;
- const sourceText = sourceFile.text;
- let pos = 0;
- for (let i = 1; i < length; ++i) {
- const end = lineStarts[i];
- let lineEnd = end;
- for (; lineEnd > pos; --lineEnd)
- if (!ts.isLineBreak(sourceText.charCodeAt(lineEnd - 1)))
- break;
- result.push({
- pos,
- end,
- contentLength: lineEnd - pos,
- });
- pos = end;
- }
- result.push({
- pos,
- end: sourceFile.end,
- contentLength: sourceFile.end - pos,
- });
- return result;
-}
-exports.getLineRanges = getLineRanges;
-function getLineBreakStyle(sourceFile) {
- const lineStarts = sourceFile.getLineStarts();
- return lineStarts.length === 1 || lineStarts[1] < 2 || sourceFile.text[lineStarts[1] - 2] !== '\r'
- ? '\n'
- : '\r\n';
-}
-exports.getLineBreakStyle = getLineBreakStyle;
-let cachedScanner;
-function scanToken(text, languageVersion) {
- if (cachedScanner === undefined) {
- cachedScanner = ts.createScanner(languageVersion, false, undefined, text);
- }
- else {
- cachedScanner.setScriptTarget(languageVersion);
- cachedScanner.setText(text);
- }
- cachedScanner.scan();
- return cachedScanner;
-}
-function isValidIdentifier(text, languageVersion = ts.ScriptTarget.Latest) {
- const scan = scanToken(text, languageVersion);
- return scan.isIdentifier() && scan.getTextPos() === text.length && scan.getTokenPos() === 0;
-}
-exports.isValidIdentifier = isValidIdentifier;
-function charSize(ch) {
- return ch >= 0x10000 ? 2 : 1;
-}
-function isValidPropertyAccess(text, languageVersion = ts.ScriptTarget.Latest) {
- if (text.length === 0)
- return false;
- let ch = text.codePointAt(0);
- if (!ts.isIdentifierStart(ch, languageVersion))
- return false;
- for (let i = charSize(ch); i < text.length; i += charSize(ch)) {
- ch = text.codePointAt(i);
- if (!ts.isIdentifierPart(ch, languageVersion))
- return false;
- }
- return true;
-}
-exports.isValidPropertyAccess = isValidPropertyAccess;
-function isValidPropertyName(text, languageVersion = ts.ScriptTarget.Latest) {
- if (isValidPropertyAccess(text, languageVersion))
- return true;
- const scan = scanToken(text, languageVersion);
- return scan.getTextPos() === text.length &&
- scan.getToken() === ts.SyntaxKind.NumericLiteral && scan.getTokenValue() === text;
-}
-exports.isValidPropertyName = isValidPropertyName;
-function isValidNumericLiteral(text, languageVersion = ts.ScriptTarget.Latest) {
- const scan = scanToken(text, languageVersion);
- return scan.getToken() === ts.SyntaxKind.NumericLiteral && scan.getTextPos() === text.length && scan.getTokenPos() === 0;
-}
-exports.isValidNumericLiteral = isValidNumericLiteral;
-function isValidJsxIdentifier(text, languageVersion = ts.ScriptTarget.Latest) {
- if (text.length === 0)
- return false;
- let ch = text.codePointAt(0);
- if (!ts.isIdentifierStart(ch, languageVersion))
- return false;
- for (let i = charSize(ch); i < text.length; i += charSize(ch)) {
- ch = text.codePointAt(i);
- if (!ts.isIdentifierPart(ch, languageVersion) && ch !== 45)
- return false;
- }
- return true;
-}
-exports.isValidJsxIdentifier = isValidJsxIdentifier;
-function isNumericPropertyName(name) {
- return String(+name) === name;
-}
-exports.isNumericPropertyName = isNumericPropertyName;
-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 (const child of node.arguments)
- if (hasSideEffects(child, options))
- return true;
- return false;
- case ts.SyntaxKind.TaggedTemplateExpression:
- if (options & 1 || hasSideEffects(node.tag, options))
- return true;
- if (node.template.kind === ts.SyntaxKind.NoSubstitutionTemplateLiteral)
- return false;
- node = node.template;
- case ts.SyntaxKind.TemplateExpression:
- for (const child of node.templateSpans)
- if (hasSideEffects(child.expression, options))
- return true;
- return false;
- case ts.SyntaxKind.ClassExpression:
- return classExpressionHasSideEffects(node, options);
- case ts.SyntaxKind.ArrayLiteralExpression:
- for (const child of node.elements)
- if (hasSideEffects(child, options))
- return true;
- return false;
- case ts.SyntaxKind.ObjectLiteralExpression:
- for (const child of node.properties) {
- 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 (const child of node.children)
- 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 (const child of node.attributes.properties) {
- 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 (const child of node.elements)
- if (hasSideEffects(child, options))
- return true;
- return false;
- default:
- return false;
- }
-}
-exports.hasSideEffects = hasSideEffects;
-function classExpressionHasSideEffects(node, options) {
- if (node.heritageClauses !== undefined && node.heritageClauses[0].token === ts.SyntaxKind.ExtendsKeyword)
- for (const base of node.heritageClauses[0].types)
- if (hasSideEffects(base.expression, options))
- return true;
- for (const child of node.members)
- 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) {
- let parent = node.parent.parent;
- while (parent.kind === ts.SyntaxKind.BindingElement)
- parent = parent.parent.parent;
- return parent;
-}
-exports.getDeclarationOfBindingElement = getDeclarationOfBindingElement;
-function isExpressionValueUsed(node) {
- while (true) {
- const 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;
- }
- }
-}
-var AccessKind;
-(function (AccessKind) {
- AccessKind[AccessKind["None"] = 0] = "None";
- AccessKind[AccessKind["Read"] = 1] = "Read";
- AccessKind[AccessKind["Write"] = 2] = "Write";
- AccessKind[AccessKind["Delete"] = 4] = "Delete";
- AccessKind[AccessKind["ReadWrite"] = 3] = "ReadWrite";
- AccessKind[AccessKind["Modification"] = 6] = "Modification";
-})(AccessKind = exports.AccessKind || (exports.AccessKind = {}));
-function getAccessKind(node) {
- const parent = node.parent;
- switch (parent.kind) {
- case ts.SyntaxKind.DeleteExpression:
- return 4;
- case ts.SyntaxKind.PostfixUnaryExpression:
- return 3;
- case ts.SyntaxKind.PrefixUnaryExpression:
- return parent.operator === ts.SyntaxKind.PlusPlusToken ||
- parent.operator === ts.SyntaxKind.MinusMinusToken
- ? 3
- : 1;
- case ts.SyntaxKind.BinaryExpression:
- return parent.right === node
- ? 1
- : !isAssignmentKind(parent.operatorToken.kind)
- ? 1
- : parent.operatorToken.kind === ts.SyntaxKind.EqualsToken
- ? 2
- : 3;
- case ts.SyntaxKind.ShorthandPropertyAssignment:
- return parent.objectAssignmentInitializer === node
- ? 1
- : isInDestructuringAssignment(parent)
- ? 2
- : 1;
- case ts.SyntaxKind.PropertyAssignment:
- return parent.name === node
- ? 0
- : isInDestructuringAssignment(parent)
- ? 2
- : 1;
- case ts.SyntaxKind.ArrayLiteralExpression:
- case ts.SyntaxKind.SpreadElement:
- case ts.SyntaxKind.SpreadAssignment:
- return isInDestructuringAssignment(parent)
- ? 2
- : 1;
- case ts.SyntaxKind.ParenthesizedExpression:
- case ts.SyntaxKind.NonNullExpression:
- case ts.SyntaxKind.TypeAssertionExpression:
- case ts.SyntaxKind.AsExpression:
- return getAccessKind(parent);
- case ts.SyntaxKind.ForOfStatement:
- case ts.SyntaxKind.ForInStatement:
- return parent.initializer === node
- ? 2
- : 1;
- case ts.SyntaxKind.ExpressionWithTypeArguments:
- return parent.parent.token === ts.SyntaxKind.ExtendsKeyword &&
- parent.parent.parent.kind !== ts.SyntaxKind.InterfaceDeclaration
- ? 1
- : 0;
- case ts.SyntaxKind.ComputedPropertyName:
- case ts.SyntaxKind.ExpressionStatement:
- case ts.SyntaxKind.TypeOfExpression:
- case ts.SyntaxKind.ElementAccessExpression:
- case ts.SyntaxKind.ForStatement:
- case ts.SyntaxKind.IfStatement:
- case ts.SyntaxKind.DoStatement:
- case ts.SyntaxKind.WhileStatement:
- case ts.SyntaxKind.SwitchStatement:
- case ts.SyntaxKind.WithStatement:
- case ts.SyntaxKind.ThrowStatement:
- case ts.SyntaxKind.CallExpression:
- case ts.SyntaxKind.NewExpression:
- case ts.SyntaxKind.TaggedTemplateExpression:
- case ts.SyntaxKind.JsxExpression:
- case ts.SyntaxKind.Decorator:
- case ts.SyntaxKind.TemplateSpan:
- case ts.SyntaxKind.JsxOpeningElement:
- case ts.SyntaxKind.JsxSelfClosingElement:
- case ts.SyntaxKind.JsxSpreadAttribute:
- case ts.SyntaxKind.VoidExpression:
- case ts.SyntaxKind.ReturnStatement:
- case ts.SyntaxKind.AwaitExpression:
- case ts.SyntaxKind.YieldExpression:
- case ts.SyntaxKind.ConditionalExpression:
- case ts.SyntaxKind.CaseClause:
- case ts.SyntaxKind.JsxElement:
- return 1;
- case ts.SyntaxKind.ArrowFunction:
- return parent.body === node
- ? 1
- : 2;
- case ts.SyntaxKind.PropertyDeclaration:
- case ts.SyntaxKind.VariableDeclaration:
- case ts.SyntaxKind.Parameter:
- case ts.SyntaxKind.EnumMember:
- case ts.SyntaxKind.BindingElement:
- case ts.SyntaxKind.JsxAttribute:
- return parent.initializer === node
- ? 1
- : 0;
- case ts.SyntaxKind.PropertyAccessExpression:
- return parent.expression === node
- ? 1
- : 0;
- case ts.SyntaxKind.ExportAssignment:
- return parent.isExportEquals
- ? 1
- : 0;
- }
- return 0;
-}
-exports.getAccessKind = getAccessKind;
-function isReassignmentTarget(node) {
- return (getAccessKind(node) & 2) !== 0;
-}
-exports.isReassignmentTarget = isReassignmentTarget;
-function canHaveJsDoc(node) {
- const 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:
- case ts.SyntaxKind.ExportDeclaration:
- return true;
- default:
- return false;
- }
-}
-exports.canHaveJsDoc = canHaveJsDoc;
-function getJsDoc(node, sourceFile) {
- if (node.kind === ts.SyntaxKind.EndOfFileToken)
- return parseJsDocWorker(node, sourceFile || node.parent);
- const result = [];
- for (const child of node.getChildren(sourceFile)) {
- if (!node_1.isJsDoc(child))
- break;
- result.push(child);
- }
- return result;
-}
-exports.getJsDoc = getJsDoc;
-function parseJsDocOfNode(node, considerTrailingComments, sourceFile = node.getSourceFile()) {
- if (canHaveJsDoc(node) && node.kind !== ts.SyntaxKind.EndOfFileToken) {
- const result = getJsDoc(node, sourceFile);
- if (result.length !== 0 || !considerTrailingComments)
- return result;
- }
- return parseJsDocWorker(node, sourceFile, considerTrailingComments);
-}
-exports.parseJsDocOfNode = parseJsDocOfNode;
-function parseJsDocWorker(node, sourceFile, considerTrailingComments) {
- const nodeStart = node.getStart(sourceFile);
- const start = ts[considerTrailingComments && isSameLine(sourceFile, node.pos, nodeStart)
- ? 'forEachTrailingCommentRange'
- : 'forEachLeadingCommentRange'](sourceFile.text, node.pos, (pos, _end, kind) => kind === ts.SyntaxKind.MultiLineCommentTrivia && sourceFile.text[pos + 2] === '*' ? { pos } : undefined);
- if (start === undefined)
- return [];
- const startPos = start.pos;
- const text = sourceFile.text.slice(startPos, nodeStart);
- const newSourceFile = ts.createSourceFile('jsdoc.ts', `${text}var a;`, sourceFile.languageVersion);
- const result = getJsDoc(newSourceFile.statements[0], newSourceFile);
- for (const doc of result)
- updateNode(doc, node);
- return result;
- function updateNode(n, parent) {
- n.pos += startPos;
- n.end += startPos;
- n.parent = parent;
- return ts.forEachChild(n, (child) => updateNode(child, n), (children) => {
- children.pos += startPos;
- children.end += startPos;
- for (const child of children)
- 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["ImportType"] = 32] = "ImportType";
- ImportKind[ImportKind["All"] = 63] = "All";
- ImportKind[ImportKind["AllImports"] = 59] = "AllImports";
- ImportKind[ImportKind["AllStaticImports"] = 3] = "AllStaticImports";
- ImportKind[ImportKind["AllImportExpressions"] = 24] = "AllImportExpressions";
- ImportKind[ImportKind["AllRequireLike"] = 18] = "AllRequireLike";
- ImportKind[ImportKind["AllNestedImports"] = 56] = "AllNestedImports";
- ImportKind[ImportKind["AllTopLevelImports"] = 7] = "AllTopLevelImports";
-})(ImportKind = exports.ImportKind || (exports.ImportKind = {}));
-function findImports(sourceFile, kinds) {
- const result = [];
- for (const node of findImportLikeNodes(sourceFile, kinds)) {
- switch (node.kind) {
- case ts.SyntaxKind.ImportDeclaration:
- addIfTextualLiteral(node.moduleSpecifier);
- break;
- case ts.SyntaxKind.ImportEqualsDeclaration:
- addIfTextualLiteral(node.moduleReference.expression);
- break;
- case ts.SyntaxKind.ExportDeclaration:
- addIfTextualLiteral(node.moduleSpecifier);
- break;
- case ts.SyntaxKind.CallExpression:
- addIfTextualLiteral(node.arguments[0]);
- break;
- case ts.SyntaxKind.ImportType:
- if (node_1.isLiteralTypeNode(node.argument))
- addIfTextualLiteral(node.argument.literal);
- break;
- default:
- throw new Error('unexpected node');
- }
- }
- return result;
- function addIfTextualLiteral(node) {
- if (node_1.isTextualLiteral(node))
- result.push(node);
- }
-}
-exports.findImports = findImports;
-function findImportLikeNodes(sourceFile, kinds) {
- return new ImportFinder(sourceFile, kinds).find();
-}
-exports.findImportLikeNodes = findImportLikeNodes;
-class ImportFinder {
- constructor(_sourceFile, _options) {
- this._sourceFile = _sourceFile;
- this._options = _options;
- this._result = [];
- }
- find() {
- if (this._sourceFile.isDeclarationFile)
- this._options &= ~24;
- if (this._options & 7)
- this._findImports(this._sourceFile.statements);
- if (this._options & 56)
- this._findNestedImports();
- return this._result;
- }
- _findImports(statements) {
- for (const statement of statements) {
- if (node_1.isImportDeclaration(statement)) {
- if (this._options & 1)
- this._result.push(statement);
- }
- else if (node_1.isImportEqualsDeclaration(statement)) {
- if (this._options & 2 &&
- statement.moduleReference.kind === ts.SyntaxKind.ExternalModuleReference)
- this._result.push(statement);
- }
- else if (node_1.isExportDeclaration(statement)) {
- if (statement.moduleSpecifier !== undefined && this._options & 4)
- this._result.push(statement);
- }
- else if (node_1.isModuleDeclaration(statement)) {
- this._findImportsInModule(statement);
- }
- }
- }
- _findImportsInModule(declaration) {
- if (declaration.body === undefined)
- return;
- if (declaration.body.kind === ts.SyntaxKind.ModuleDeclaration)
- return this._findImportsInModule(declaration.body);
- this._findImports(declaration.body.statements);
- }
- _findNestedImports() {
- let re;
- if ((this._options & 56) === 16) {
- re = /\brequire\s*[</(]/g;
- }
- else if (this._options & 16) {
- re = /\b(?:import|require)\s*[</(]/g;
- }
- else {
- re = /\bimport\s*[</(]/g;
- }
- const isJavaScriptFile = (this._sourceFile.flags & ts.NodeFlags.JavaScriptFile) !== 0;
- for (let match = re.exec(this._sourceFile.text); match !== null; match = re.exec(this._sourceFile.text)) {
- const token = getTokenAtPositionWorker(this._sourceFile, match.index, this._sourceFile, match[0][0] === 'i' && isJavaScriptFile);
- if (token.kind === ts.SyntaxKind.ImportKeyword) {
- if (token.end - 'import'.length !== match.index)
- continue;
- switch (token.parent.kind) {
- case ts.SyntaxKind.ImportType:
- this._result.push(token.parent);
- break;
- case ts.SyntaxKind.CallExpression:
- if (token.parent.arguments.length === 1)
- this._result.push(token.parent);
- }
- }
- else if (token.kind === ts.SyntaxKind.Identifier &&
- token.end - 'require'.length === match.index &&
- token.parent.kind === ts.SyntaxKind.CallExpression &&
- token.parent.expression === token &&
- token.parent.arguments.length === 1) {
- this._result.push(token.parent);
- }
- }
- }
-}
-function isStatementInAmbientContext(node) {
- while (node.flags & ts.NodeFlags.NestedNamespace)
- node = node.parent;
- return hasModifier(node.modifiers, ts.SyntaxKind.DeclareKeyword) || isAmbientModuleBlock(node.parent);
-}
-exports.isStatementInAmbientContext = isStatementInAmbientContext;
-function isAmbientModuleBlock(node) {
- while (node.kind === ts.SyntaxKind.ModuleBlock) {
- do
- node = node.parent;
- while (node.flags & ts.NodeFlags.NestedNamespace);
- if (hasModifier(node.modifiers, ts.SyntaxKind.DeclareKeyword))
- return true;
- node = node.parent;
- }
- return false;
-}
-exports.isAmbientModuleBlock = isAmbientModuleBlock;
-function getIIFE(func) {
- let node = func.parent;
- while (node.kind === ts.SyntaxKind.ParenthesizedExpression)
- node = node.parent;
- return node_1.isCallExpression(node) && func.end <= node.expression.end ? node : undefined;
-}
-exports.getIIFE = getIIFE;
-function isStrictCompilerOptionEnabled(options, option) {
- return (options.strict ? options[option] !== false : options[option] === true) &&
- (option !== 'strictPropertyInitialization' || isStrictCompilerOptionEnabled(options, 'strictNullChecks'));
-}
-exports.isStrictCompilerOptionEnabled = isStrictCompilerOptionEnabled;
-function isCompilerOptionEnabled(options, option) {
- switch (option) {
- case 'stripInternal':
- return options.stripInternal === true && isCompilerOptionEnabled(options, 'declaration');
- case 'declaration':
- return options.declaration || isCompilerOptionEnabled(options, 'composite');
- case 'incremental':
- return options.incremental === undefined ? isCompilerOptionEnabled(options, 'composite') : options.incremental;
- case 'skipDefaultLibCheck':
- return options.skipDefaultLibCheck || isCompilerOptionEnabled(options, 'skipLibCheck');
- case 'suppressImplicitAnyIndexErrors':
- return options.suppressImplicitAnyIndexErrors === true && isCompilerOptionEnabled(options, 'noImplicitAny');
- case 'allowSyntheticDefaultImports':
- return options.allowSyntheticDefaultImports !== undefined
- ? options.allowSyntheticDefaultImports
- : isCompilerOptionEnabled(options, 'esModuleInterop') || options.module === ts.ModuleKind.System;
- case 'noImplicitAny':
- case 'noImplicitThis':
- case 'strictNullChecks':
- case 'strictFunctionTypes':
- case 'strictPropertyInitialization':
- case 'alwaysStrict':
- case 'strictBindCallApply':
- return isStrictCompilerOptionEnabled(options, option);
- }
- return options[option] === true;
-}
-exports.isCompilerOptionEnabled = isCompilerOptionEnabled;
-function isAmbientModule(node) {
- return node.name.kind === ts.SyntaxKind.StringLiteral || (node.flags & ts.NodeFlags.GlobalAugmentation) !== 0;
-}
-exports.isAmbientModule = isAmbientModule;
-function getCheckJsDirective(source) {
- let directive;
- ts.forEachLeadingCommentRange(source, (ts.getShebang(source) || '').length, (pos, end, kind) => {
- if (kind === ts.SyntaxKind.SingleLineCommentTrivia) {
- const text = source.slice(pos, end);
- const match = /^\/{2,3}\s*@ts-(no)?check(?:\s|$)/i.exec(text);
- if (match !== null)
- directive = { pos, end, enabled: match[1] === undefined };
- }
- });
- return directive;
-}
-exports.getCheckJsDirective = getCheckJsDirective;
-function isConstAssertion(node) {
- return node_1.isTypeReferenceNode(node.type) &&
- node.type.typeName.kind === ts.SyntaxKind.Identifier &&
- node.type.typeName.escapedText === 'const';
-}
-exports.isConstAssertion = isConstAssertion;
-function isInConstContext(node) {
- let current = node;
- while (true) {
- const parent = current.parent;
- outer: switch (parent.kind) {
- case ts.SyntaxKind.TypeAssertionExpression:
- case ts.SyntaxKind.AsExpression:
- return isConstAssertion(parent);
- case ts.SyntaxKind.PrefixUnaryExpression:
- if (current.kind !== ts.SyntaxKind.NumericLiteral)
- return false;
- switch (parent.operator) {
- case ts.SyntaxKind.PlusToken:
- case ts.SyntaxKind.MinusToken:
- current = parent;
- break outer;
- default:
- return false;
- }
- case ts.SyntaxKind.PropertyAssignment:
- if (parent.initializer !== current)
- return false;
- current = parent.parent;
- break;
- case ts.SyntaxKind.ShorthandPropertyAssignment:
- current = parent.parent;
- break;
- case ts.SyntaxKind.ParenthesizedExpression:
- case ts.SyntaxKind.ArrayLiteralExpression:
- case ts.SyntaxKind.ObjectLiteralExpression:
- current = parent;
- break;
- default:
- return false;
- }
- }
-}
-exports.isInConstContext = isInConstContext;
-function isReadonlyAssignmentDeclaration(node, checker) {
- if (!isBindableObjectDefinePropertyCall(node))
- return false;
- const descriptorType = checker.getTypeAtLocation(node.arguments[2]);
- if (descriptorType.getProperty('value') === undefined)
- return descriptorType.getProperty('set') === undefined;
- const writableProp = descriptorType.getProperty('writable');
- if (writableProp === undefined)
- return false;
- const writableType = writableProp.valueDeclaration !== undefined && node_1.isPropertyAssignment(writableProp.valueDeclaration)
- ? checker.getTypeAtLocation(writableProp.valueDeclaration.initializer)
- : checker.getTypeOfSymbolAtLocation(writableProp, node.arguments[2]);
- return type_1.isBooleanLiteralType(writableType, false);
-}
-exports.isReadonlyAssignmentDeclaration = isReadonlyAssignmentDeclaration;
-function isBindableObjectDefinePropertyCall(node) {
- return node.arguments.length === 3 &&
- node_1.isEntityNameExpression(node.arguments[0]) &&
- node_1.isNumericOrStringLikeLiteral(node.arguments[1]) &&
- node_1.isPropertyAccessExpression(node.expression) &&
- node.expression.name.escapedText === 'defineProperty' &&
- node_1.isIdentifier(node.expression.expression) &&
- node.expression.expression.escapedText === 'Object';
-}
-exports.isBindableObjectDefinePropertyCall = isBindableObjectDefinePropertyCall;
-function isWellKnownSymbolLiterally(node) {
- return ts.isPropertyAccessExpression(node) &&
- ts.isIdentifier(node.expression) &&
- node.expression.escapedText === 'Symbol';
-}
-exports.isWellKnownSymbolLiterally = isWellKnownSymbolLiterally;
-function getPropertyNameOfWellKnownSymbol(node) {
- return {
- displayName: `[Symbol.${node.name.text}]`,
- symbolName: ('__@' + node.name.text),
- };
-}
-exports.getPropertyNameOfWellKnownSymbol = getPropertyNameOfWellKnownSymbol;
-function getLateBoundPropertyNames(node, checker) {
- const result = {
- known: true,
- names: [],
- };
- node = unwrapParentheses(node);
- if (isWellKnownSymbolLiterally(node)) {
- result.names.push(getPropertyNameOfWellKnownSymbol(node));
- }
- else {
- const type = checker.getTypeAtLocation(node);
- for (const key of type_1.unionTypeParts(checker.getBaseConstraintOfType(type) || type)) {
- const propertyName = type_1.getPropertyNameFromType(key);
- if (propertyName) {
- result.names.push(propertyName);
- }
- else {
- result.known = false;
- }
- }
- }
- return result;
-}
-exports.getLateBoundPropertyNames = getLateBoundPropertyNames;
-function getLateBoundPropertyNamesOfPropertyName(node, checker) {
- const staticName = getPropertyName(node);
- return staticName !== undefined
- ? { known: true, names: [{ displayName: staticName, symbolName: ts.escapeLeadingUnderscores(staticName) }] }
- : getLateBoundPropertyNames(node.expression, checker);
-}
-exports.getLateBoundPropertyNamesOfPropertyName = getLateBoundPropertyNamesOfPropertyName;
-function getSingleLateBoundPropertyNameOfPropertyName(node, checker) {
- const staticName = getPropertyName(node);
- if (staticName !== undefined)
- return { displayName: staticName, symbolName: ts.escapeLeadingUnderscores(staticName) };
- const { expression } = node;
- return isWellKnownSymbolLiterally(expression)
- ? getPropertyNameOfWellKnownSymbol(expression)
- : type_1.getPropertyNameFromType(checker.getTypeAtLocation(expression));
-}
-exports.getSingleLateBoundPropertyNameOfPropertyName = getSingleLateBoundPropertyNameOfPropertyName;
-function unwrapParentheses(node) {
- while (node.kind === ts.SyntaxKind.ParenthesizedExpression)
- node = node.expression;
- return node;
-}
-exports.unwrapParentheses = unwrapParentheses;
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