js • Lines: 2423"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Converter = exports.convertError = void 0;
// There's lots of funny stuff due to the typing of ts.Node
/* eslint-disable @typescript-eslint/no-explicit-any, @typescript-eslint/no-unsafe-assignment, @typescript-eslint/no-unsafe-call, @typescript-eslint/no-unsafe-return, @typescript-eslint/no-unsafe-member-access */
const ts = __importStar(require("typescript"));
const getModifiers_1 = require("./getModifiers");
const node_utils_1 = require("./node-utils");
const ts_estree_1 = require("./ts-estree");
const version_check_1 = require("./version-check");
const SyntaxKind = ts.SyntaxKind;
/**
* Extends and formats a given error object
* @param error the error object
* @returns converted error object
*/
function convertError(error) {
return (0, node_utils_1.createError)(error.file, error.start, ('message' in error && error.message) || error.messageText);
}
exports.convertError = convertError;
class Converter {
/**
* Converts a TypeScript node into an ESTree node
* @param ast the full TypeScript AST
* @param options additional options for the conversion
* @returns the converted ESTreeNode
*/
constructor(ast, options) {
this.esTreeNodeToTSNodeMap = new WeakMap();
this.tsNodeToESTreeNodeMap = new WeakMap();
this.allowPattern = false;
this.inTypeMode = false;
this.ast = ast;
this.options = Object.assign({}, options);
}
getASTMaps() {
return {
esTreeNodeToTSNodeMap: this.esTreeNodeToTSNodeMap,
tsNodeToESTreeNodeMap: this.tsNodeToESTreeNodeMap,
};
}
convertProgram() {
return this.converter(this.ast);
}
/**
* Converts a TypeScript node into an ESTree node.
* @param node the child ts.Node
* @param parent parentNode
* @param inTypeMode flag to determine if we are in typeMode
* @param allowPattern flag to determine if patterns are allowed
* @returns the converted ESTree node
*/
converter(node, parent, inTypeMode, allowPattern) {
/**
* Exit early for null and undefined
*/
if (!node) {
return null;
}
const typeMode = this.inTypeMode;
const pattern = this.allowPattern;
if (inTypeMode !== undefined) {
this.inTypeMode = inTypeMode;
}
if (allowPattern !== undefined) {
this.allowPattern = allowPattern;
}
const result = this.convertNode(node, (parent !== null && parent !== void 0 ? parent : node.parent));
this.registerTSNodeInNodeMap(node, result);
this.inTypeMode = typeMode;
this.allowPattern = pattern;
return result;
}
/**
* Fixes the exports of the given ts.Node
* @param node the ts.Node
* @param result result
* @returns the ESTreeNode with fixed exports
*/
fixExports(node, result) {
// check for exports
const modifiers = (0, getModifiers_1.getModifiers)(node);
if ((modifiers === null || modifiers === void 0 ? void 0 : modifiers[0].kind) === SyntaxKind.ExportKeyword) {
/**
* Make sure that original node is registered instead of export
*/
this.registerTSNodeInNodeMap(node, result);
const exportKeyword = modifiers[0];
const nextModifier = modifiers[1];
const declarationIsDefault = nextModifier && nextModifier.kind === SyntaxKind.DefaultKeyword;
const varToken = declarationIsDefault
? (0, node_utils_1.findNextToken)(nextModifier, this.ast, this.ast)
: (0, node_utils_1.findNextToken)(exportKeyword, this.ast, this.ast);
result.range[0] = varToken.getStart(this.ast);
result.loc = (0, node_utils_1.getLocFor)(result.range[0], result.range[1], this.ast);
if (declarationIsDefault) {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ExportDefaultDeclaration,
declaration: result,
range: [exportKeyword.getStart(this.ast), result.range[1]],
exportKind: 'value',
});
}
else {
const isType = result.type === ts_estree_1.AST_NODE_TYPES.TSInterfaceDeclaration ||
result.type === ts_estree_1.AST_NODE_TYPES.TSTypeAliasDeclaration;
const isDeclare = 'declare' in result && result.declare === true;
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ExportNamedDeclaration,
// @ts-expect-error - TODO, narrow the types here
declaration: result,
specifiers: [],
source: null,
exportKind: isType || isDeclare ? 'type' : 'value',
range: [exportKeyword.getStart(this.ast), result.range[1]],
assertions: [],
});
}
}
return result;
}
/**
* Register specific TypeScript node into map with first ESTree node provided
*/
registerTSNodeInNodeMap(node, result) {
if (result && this.options.shouldPreserveNodeMaps) {
if (!this.tsNodeToESTreeNodeMap.has(node)) {
this.tsNodeToESTreeNodeMap.set(node, result);
}
}
}
/**
* Converts a TypeScript node into an ESTree node.
* @param child the child ts.Node
* @param parent parentNode
* @returns the converted ESTree node
*/
convertPattern(child, parent) {
return this.converter(child, parent, this.inTypeMode, true);
}
/**
* Converts a TypeScript node into an ESTree node.
* @param child the child ts.Node
* @param parent parentNode
* @returns the converted ESTree node
*/
convertChild(child, parent) {
return this.converter(child, parent, this.inTypeMode, false);
}
/**
* Converts a TypeScript node into an ESTree node.
* @param child the child ts.Node
* @param parent parentNode
* @returns the converted ESTree node
*/
convertType(child, parent) {
return this.converter(child, parent, true, false);
}
createNode(node, data) {
const result = data;
if (!result.range) {
result.range = (0, node_utils_1.getRange)(
// this is completely valid, but TS hates it
node, this.ast);
}
if (!result.loc) {
result.loc = (0, node_utils_1.getLocFor)(result.range[0], result.range[1], this.ast);
}
if (result && this.options.shouldPreserveNodeMaps) {
this.esTreeNodeToTSNodeMap.set(result, node);
}
return result;
}
convertBindingNameWithTypeAnnotation(name, tsType, parent) {
const id = this.convertPattern(name);
if (tsType) {
id.typeAnnotation = this.convertTypeAnnotation(tsType, parent);
this.fixParentLocation(id, id.typeAnnotation.range);
}
return id;
}
/**
* Converts a child into a type annotation. This creates an intermediary
* TypeAnnotation node to match what Flow does.
* @param child The TypeScript AST node to convert.
* @param parent parentNode
* @returns The type annotation node.
*/
convertTypeAnnotation(child, parent) {
// in FunctionType and ConstructorType typeAnnotation has 2 characters `=>` and in other places is just colon
const offset = (parent === null || parent === void 0 ? void 0 : parent.kind) === SyntaxKind.FunctionType ||
(parent === null || parent === void 0 ? void 0 : parent.kind) === SyntaxKind.ConstructorType
? 2
: 1;
const annotationStartCol = child.getFullStart() - offset;
const loc = (0, node_utils_1.getLocFor)(annotationStartCol, child.end, this.ast);
return {
type: ts_estree_1.AST_NODE_TYPES.TSTypeAnnotation,
loc,
range: [annotationStartCol, child.end],
typeAnnotation: this.convertType(child),
};
}
/**
* Coverts body Nodes and add a directive field to StringLiterals
* @param nodes of ts.Node
* @param parent parentNode
* @returns Array of body statements
*/
convertBodyExpressions(nodes, parent) {
let allowDirectives = (0, node_utils_1.canContainDirective)(parent);
return (nodes
.map(statement => {
const child = this.convertChild(statement);
if (allowDirectives) {
if ((child === null || child === void 0 ? void 0 : child.expression) &&
ts.isExpressionStatement(statement) &&
ts.isStringLiteral(statement.expression)) {
const raw = child.expression.raw;
child.directive = raw.slice(1, -1);
return child; // child can be null, but it's filtered below
}
else {
allowDirectives = false;
}
}
return child; // child can be null, but it's filtered below
})
// filter out unknown nodes for now
.filter(statement => statement));
}
/**
* Converts a ts.Node's typeArguments to TSTypeParameterInstantiation node
* @param typeArguments ts.NodeArray typeArguments
* @param node parent used to create this node
* @returns TypeParameterInstantiation node
*/
convertTypeArgumentsToTypeParameters(typeArguments, node) {
const greaterThanToken = (0, node_utils_1.findNextToken)(typeArguments, this.ast, this.ast);
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSTypeParameterInstantiation,
range: [typeArguments.pos - 1, greaterThanToken.end],
params: typeArguments.map(typeArgument => this.convertType(typeArgument)),
});
}
/**
* Converts a ts.Node's typeParameters to TSTypeParameterDeclaration node
* @param typeParameters ts.Node typeParameters
* @returns TypeParameterDeclaration node
*/
convertTSTypeParametersToTypeParametersDeclaration(typeParameters) {
const greaterThanToken = (0, node_utils_1.findNextToken)(typeParameters, this.ast, this.ast);
return {
type: ts_estree_1.AST_NODE_TYPES.TSTypeParameterDeclaration,
range: [typeParameters.pos - 1, greaterThanToken.end],
loc: (0, node_utils_1.getLocFor)(typeParameters.pos - 1, greaterThanToken.end, this.ast),
params: typeParameters.map(typeParameter => this.convertType(typeParameter)),
};
}
/**
* Converts an array of ts.Node parameters into an array of ESTreeNode params
* @param parameters An array of ts.Node params to be converted
* @returns an array of converted ESTreeNode params
*/
convertParameters(parameters) {
if (!(parameters === null || parameters === void 0 ? void 0 : parameters.length)) {
return [];
}
return parameters.map(param => {
const convertedParam = this.convertChild(param);
const decorators = (0, getModifiers_1.getDecorators)(param);
if (decorators === null || decorators === void 0 ? void 0 : decorators.length) {
convertedParam.decorators = decorators.map(el => this.convertChild(el));
}
return convertedParam;
});
}
convertChainExpression(node, tsNode) {
const { child, isOptional } = (() => {
if (node.type === ts_estree_1.AST_NODE_TYPES.MemberExpression) {
return { child: node.object, isOptional: node.optional };
}
if (node.type === ts_estree_1.AST_NODE_TYPES.CallExpression) {
return { child: node.callee, isOptional: node.optional };
}
return { child: node.expression, isOptional: false };
})();
const isChildUnwrappable = (0, node_utils_1.isChildUnwrappableOptionalChain)(tsNode, child);
if (!isChildUnwrappable && !isOptional) {
return node;
}
if (isChildUnwrappable && (0, node_utils_1.isChainExpression)(child)) {
// unwrap the chain expression child
const newChild = child.expression;
if (node.type === ts_estree_1.AST_NODE_TYPES.MemberExpression) {
node.object = newChild;
}
else if (node.type === ts_estree_1.AST_NODE_TYPES.CallExpression) {
node.callee = newChild;
}
else {
node.expression = newChild;
}
}
return this.createNode(tsNode, {
type: ts_estree_1.AST_NODE_TYPES.ChainExpression,
expression: node,
});
}
/**
* For nodes that are copied directly from the TypeScript AST into
* ESTree mostly as-is. The only difference is the addition of a type
* property instead of a kind property. Recursively copies all children.
*/
deeplyCopy(node) {
if (node.kind === ts.SyntaxKind.JSDocFunctionType) {
throw (0, node_utils_1.createError)(this.ast, node.pos, 'JSDoc types can only be used inside documentation comments.');
}
const customType = `TS${SyntaxKind[node.kind]}`;
/**
* If the "errorOnUnknownASTType" option is set to true, throw an error,
* otherwise fallback to just including the unknown type as-is.
*/
if (this.options.errorOnUnknownASTType && !ts_estree_1.AST_NODE_TYPES[customType]) {
throw new Error(`Unknown AST_NODE_TYPE: "${customType}"`);
}
const result = this.createNode(node, {
type: customType,
});
if ('type' in node) {
result.typeAnnotation =
node.type && 'kind' in node.type && ts.isTypeNode(node.type)
? this.convertTypeAnnotation(node.type, node)
: null;
}
if ('typeArguments' in node) {
result.typeParameters =
node.typeArguments && 'pos' in node.typeArguments
? this.convertTypeArgumentsToTypeParameters(node.typeArguments, node)
: null;
}
if ('typeParameters' in node) {
result.typeParameters =
node.typeParameters && 'pos' in node.typeParameters
? this.convertTSTypeParametersToTypeParametersDeclaration(node.typeParameters)
: null;
}
const decorators = (0, getModifiers_1.getDecorators)(node);
if (decorators === null || decorators === void 0 ? void 0 : decorators.length) {
result.decorators = decorators.map(el => this.convertChild(el));
}
// keys we never want to clone from the base typescript node as they
// introduce garbage into our AST
const KEYS_TO_NOT_COPY = new Set([
'_children',
'decorators',
'end',
'flags',
'illegalDecorators',
'heritageClauses',
'locals',
'localSymbol',
'jsDoc',
'kind',
'modifierFlagsCache',
'modifiers',
'nextContainer',
'parent',
'pos',
'symbol',
'transformFlags',
'type',
'typeArguments',
'typeParameters',
]);
Object.entries(node)
.filter(([key]) => !KEYS_TO_NOT_COPY.has(key))
.forEach(([key, value]) => {
if (Array.isArray(value)) {
result[key] = value.map(el => this.convertChild(el));
}
else if (value && typeof value === 'object' && value.kind) {
// need to check node[key].kind to ensure we don't try to convert a symbol
result[key] = this.convertChild(value);
}
else {
result[key] = value;
}
});
return result;
}
convertJSXIdentifier(node) {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXIdentifier,
name: node.getText(),
});
this.registerTSNodeInNodeMap(node, result);
return result;
}
convertJSXNamespaceOrIdentifier(node) {
// TypeScript@5.1 added in ts.JsxNamespacedName directly
// We prefer using that if it's relevant for this node type
if (node.kind === ts.SyntaxKind.JsxNamespacedName) {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXNamespacedName,
namespace: this.createNode(node.namespace, {
type: ts_estree_1.AST_NODE_TYPES.JSXIdentifier,
name: node.namespace.text,
}),
name: this.createNode(node.name, {
type: ts_estree_1.AST_NODE_TYPES.JSXIdentifier,
name: node.name.text,
}),
});
this.registerTSNodeInNodeMap(node, result);
return result;
}
// TypeScript@<5.1 has to manually parse the JSX attributes
const text = node.getText();
const colonIndex = text.indexOf(':');
// this is intentional we can ignore conversion if `:` is in first character
if (colonIndex > 0) {
const range = (0, node_utils_1.getRange)(node, this.ast);
// @ts-expect-error -- TypeScript@<5.1 doesn't have ts.JsxNamespacedName
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXNamespacedName,
namespace: this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXIdentifier,
name: text.slice(0, colonIndex),
range: [range[0], range[0] + colonIndex],
}),
name: this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXIdentifier,
name: text.slice(colonIndex + 1),
range: [range[0] + colonIndex + 1, range[1]],
}),
range,
});
this.registerTSNodeInNodeMap(node, result);
return result;
}
return this.convertJSXIdentifier(node);
}
/**
* Converts a TypeScript JSX node.tagName into an ESTree node.name
* @param node the tagName object from a JSX ts.Node
* @param parent
* @returns the converted ESTree name object
*/
convertJSXTagName(node, parent) {
let result;
switch (node.kind) {
case SyntaxKind.PropertyAccessExpression:
if (node.name.kind === SyntaxKind.PrivateIdentifier) {
// This is one of the few times where TS explicitly errors, and doesn't even gracefully handle the syntax.
// So we shouldn't ever get into this state to begin with.
throw new Error('Non-private identifier expected.');
}
result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXMemberExpression,
object: this.convertJSXTagName(node.expression, parent),
property: this.convertJSXIdentifier(node.name),
});
break;
case SyntaxKind.ThisKeyword:
case SyntaxKind.Identifier:
default:
return this.convertJSXNamespaceOrIdentifier(node);
}
this.registerTSNodeInNodeMap(node, result);
return result;
}
convertMethodSignature(node) {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSMethodSignature,
computed: (0, node_utils_1.isComputedProperty)(node.name),
key: this.convertChild(node.name),
params: this.convertParameters(node.parameters),
kind: (() => {
switch (node.kind) {
case SyntaxKind.GetAccessor:
return 'get';
case SyntaxKind.SetAccessor:
return 'set';
case SyntaxKind.MethodSignature:
return 'method';
}
})(),
});
if ((0, node_utils_1.isOptional)(node)) {
result.optional = true;
}
if (node.type) {
result.returnType = this.convertTypeAnnotation(node.type, node);
}
if ((0, node_utils_1.hasModifier)(SyntaxKind.ReadonlyKeyword, node)) {
result.readonly = true;
}
if (node.typeParameters) {
result.typeParameters =
this.convertTSTypeParametersToTypeParametersDeclaration(node.typeParameters);
}
const accessibility = (0, node_utils_1.getTSNodeAccessibility)(node);
if (accessibility) {
result.accessibility = accessibility;
}
if ((0, node_utils_1.hasModifier)(SyntaxKind.ExportKeyword, node)) {
result.export = true;
}
if ((0, node_utils_1.hasModifier)(SyntaxKind.StaticKeyword, node)) {
result.static = true;
}
return result;
}
convertAssertClasue(node) {
return node === undefined
? []
: node.elements.map(element => this.convertChild(element));
}
/**
* Applies the given TS modifiers to the given result object.
*
* This method adds not standardized `modifiers` property in nodes
*
* @param result
* @param modifiers original ts.Nodes from the node.modifiers array
* @returns the current result object will be mutated
*/
applyModifiersToResult(result, modifiers) {
if (!modifiers) {
return;
}
const remainingModifiers = [];
/**
* Some modifiers are explicitly handled by applying them as
* boolean values on the result node. As well as adding them
* to the result, we remove them from the array, so that they
* are not handled twice.
*/
for (const modifier of modifiers) {
switch (modifier.kind) {
/**
* Ignore ExportKeyword and DefaultKeyword, they are handled
* via the fixExports utility function
*/
case SyntaxKind.ExportKeyword:
case SyntaxKind.DefaultKeyword:
break;
case SyntaxKind.ConstKeyword:
result.const = true;
break;
case SyntaxKind.DeclareKeyword:
result.declare = true;
break;
default:
remainingModifiers.push(this.convertChild(modifier));
break;
}
}
/**
* If there are still valid modifiers available which have
* not been explicitly handled above, we just convert and
* add the modifiers array to the result node.
*/
if (remainingModifiers.length > 0) {
result.modifiers = remainingModifiers;
}
}
/**
* Uses the provided range location to adjust the location data of the given Node
* @param result The node that will have its location data mutated
* @param childRange The child node range used to expand location
*/
fixParentLocation(result, childRange) {
if (childRange[0] < result.range[0]) {
result.range[0] = childRange[0];
result.loc.start = (0, node_utils_1.getLineAndCharacterFor)(result.range[0], this.ast);
}
if (childRange[1] > result.range[1]) {
result.range[1] = childRange[1];
result.loc.end = (0, node_utils_1.getLineAndCharacterFor)(result.range[1], this.ast);
}
}
assertModuleSpecifier(node, allowNull) {
var _a;
if (!allowNull && node.moduleSpecifier == null) {
throw (0, node_utils_1.createError)(this.ast, node.pos, 'Module specifier must be a string literal.');
}
if (node.moduleSpecifier &&
((_a = node.moduleSpecifier) === null || _a === void 0 ? void 0 : _a.kind) !== SyntaxKind.StringLiteral) {
throw (0, node_utils_1.createError)(this.ast, node.moduleSpecifier.pos, 'Module specifier must be a string literal.');
}
}
/**
* Converts a TypeScript node into an ESTree node.
* The core of the conversion logic:
* Identify and convert each relevant TypeScript SyntaxKind
* @param node the child ts.Node
* @param parent parentNode
* @returns the converted ESTree node
*/
convertNode(node, parent) {
var _a, _b, _c, _d, _e, _f, _g, _h, _j, _k;
switch (node.kind) {
case SyntaxKind.SourceFile: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Program,
body: this.convertBodyExpressions(node.statements, node),
sourceType: node.externalModuleIndicator ? 'module' : 'script',
range: [node.getStart(this.ast), node.endOfFileToken.end],
});
}
case SyntaxKind.Block: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.BlockStatement,
body: this.convertBodyExpressions(node.statements, node),
});
}
case SyntaxKind.Identifier: {
if ((0, node_utils_1.isThisInTypeQuery)(node)) {
// special case for `typeof this.foo` - TS emits an Identifier for `this`
// but we want to treat it as a ThisExpression for consistency
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ThisExpression,
});
}
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Identifier,
name: node.text,
});
}
case SyntaxKind.PrivateIdentifier: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.PrivateIdentifier,
// typescript includes the `#` in the text
name: node.text.slice(1),
});
}
case SyntaxKind.WithStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.WithStatement,
object: this.convertChild(node.expression),
body: this.convertChild(node.statement),
});
// Control Flow
case SyntaxKind.ReturnStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ReturnStatement,
argument: this.convertChild(node.expression),
});
case SyntaxKind.LabeledStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.LabeledStatement,
label: this.convertChild(node.label),
body: this.convertChild(node.statement),
});
case SyntaxKind.ContinueStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ContinueStatement,
label: this.convertChild(node.label),
});
case SyntaxKind.BreakStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.BreakStatement,
label: this.convertChild(node.label),
});
// Choice
case SyntaxKind.IfStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.IfStatement,
test: this.convertChild(node.expression),
consequent: this.convertChild(node.thenStatement),
alternate: this.convertChild(node.elseStatement),
});
case SyntaxKind.SwitchStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.SwitchStatement,
discriminant: this.convertChild(node.expression),
cases: node.caseBlock.clauses.map(el => this.convertChild(el)),
});
case SyntaxKind.CaseClause:
case SyntaxKind.DefaultClause:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.SwitchCase,
// expression is present in case only
test: node.kind === SyntaxKind.CaseClause
? this.convertChild(node.expression)
: null,
consequent: node.statements.map(el => this.convertChild(el)),
});
// Exceptions
case SyntaxKind.ThrowStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ThrowStatement,
argument: this.convertChild(node.expression),
});
case SyntaxKind.TryStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TryStatement,
block: this.convertChild(node.tryBlock),
handler: this.convertChild(node.catchClause),
finalizer: this.convertChild(node.finallyBlock),
});
case SyntaxKind.CatchClause:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.CatchClause,
param: node.variableDeclaration
? this.convertBindingNameWithTypeAnnotation(node.variableDeclaration.name, node.variableDeclaration.type)
: null,
body: this.convertChild(node.block),
});
// Loops
case SyntaxKind.WhileStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.WhileStatement,
test: this.convertChild(node.expression),
body: this.convertChild(node.statement),
});
/**
* Unlike other parsers, TypeScript calls a "DoWhileStatement"
* a "DoStatement"
*/
case SyntaxKind.DoStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.DoWhileStatement,
test: this.convertChild(node.expression),
body: this.convertChild(node.statement),
});
case SyntaxKind.ForStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ForStatement,
init: this.convertChild(node.initializer),
test: this.convertChild(node.condition),
update: this.convertChild(node.incrementor),
body: this.convertChild(node.statement),
});
case SyntaxKind.ForInStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ForInStatement,
left: this.convertPattern(node.initializer),
right: this.convertChild(node.expression),
body: this.convertChild(node.statement),
});
case SyntaxKind.ForOfStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ForOfStatement,
left: this.convertPattern(node.initializer),
right: this.convertChild(node.expression),
body: this.convertChild(node.statement),
await: Boolean(node.awaitModifier &&
node.awaitModifier.kind === SyntaxKind.AwaitKeyword),
});
// Declarations
case SyntaxKind.FunctionDeclaration: {
const isDeclare = (0, node_utils_1.hasModifier)(SyntaxKind.DeclareKeyword, node);
const result = this.createNode(node, {
type: isDeclare || !node.body
? ts_estree_1.AST_NODE_TYPES.TSDeclareFunction
: ts_estree_1.AST_NODE_TYPES.FunctionDeclaration,
id: this.convertChild(node.name),
generator: !!node.asteriskToken,
expression: false,
async: (0, node_utils_1.hasModifier)(SyntaxKind.AsyncKeyword, node),
params: this.convertParameters(node.parameters),
body: this.convertChild(node.body) || undefined,
});
// Process returnType
if (node.type) {
result.returnType = this.convertTypeAnnotation(node.type, node);
}
// Process typeParameters
if (node.typeParameters) {
result.typeParameters =
this.convertTSTypeParametersToTypeParametersDeclaration(node.typeParameters);
}
if (isDeclare) {
result.declare = true;
}
// check for exports
return this.fixExports(node, result);
}
case SyntaxKind.VariableDeclaration: {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.VariableDeclarator,
id: this.convertBindingNameWithTypeAnnotation(node.name, node.type, node),
init: this.convertChild(node.initializer),
});
if (node.exclamationToken) {
result.definite = true;
}
return result;
}
case SyntaxKind.VariableStatement: {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.VariableDeclaration,
declarations: node.declarationList.declarations.map(el => this.convertChild(el)),
kind: (0, node_utils_1.getDeclarationKind)(node.declarationList),
});
/**
* Semantically, decorators are not allowed on variable declarations,
* Pre 4.8 TS would include them in the AST, so we did as well.
* However as of 4.8 TS no longer includes it (as it is, well, invalid).
*
* So for consistency across versions, we no longer include it either.
*/
if ((0, node_utils_1.hasModifier)(SyntaxKind.DeclareKeyword, node)) {
result.declare = true;
}
// check for exports
return this.fixExports(node, result);
}
// mostly for for-of, for-in
case SyntaxKind.VariableDeclarationList:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.VariableDeclaration,
declarations: node.declarations.map(el => this.convertChild(el)),
kind: (0, node_utils_1.getDeclarationKind)(node),
});
// Expressions
case SyntaxKind.ExpressionStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ExpressionStatement,
expression: this.convertChild(node.expression),
});
case SyntaxKind.ThisKeyword:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ThisExpression,
});
case SyntaxKind.ArrayLiteralExpression: {
// TypeScript uses ArrayLiteralExpression in destructuring assignment, too
if (this.allowPattern) {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ArrayPattern,
elements: node.elements.map(el => this.convertPattern(el)),
});
}
else {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ArrayExpression,
elements: node.elements.map(el => this.convertChild(el)),
});
}
}
case SyntaxKind.ObjectLiteralExpression: {
// TypeScript uses ObjectLiteralExpression in destructuring assignment, too
if (this.allowPattern) {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ObjectPattern,
properties: node.properties.map(el => this.convertPattern(el)),
});
}
else {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ObjectExpression,
properties: node.properties.map(el => this.convertChild(el)),
});
}
}
case SyntaxKind.PropertyAssignment:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Property,
key: this.convertChild(node.name),
value: this.converter(node.initializer, node, this.inTypeMode, this.allowPattern),
computed: (0, node_utils_1.isComputedProperty)(node.name),
method: false,
shorthand: false,
kind: 'init',
});
case SyntaxKind.ShorthandPropertyAssignment: {
if (node.objectAssignmentInitializer) {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Property,
key: this.convertChild(node.name),
value: this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.AssignmentPattern,
left: this.convertPattern(node.name),
right: this.convertChild(node.objectAssignmentInitializer),
}),
computed: false,
method: false,
shorthand: true,
kind: 'init',
});
}
else {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Property,
key: this.convertChild(node.name),
value: this.convertChild(node.name),
computed: false,
method: false,
shorthand: true,
kind: 'init',
});
}
}
case SyntaxKind.ComputedPropertyName:
return this.convertChild(node.expression);
case SyntaxKind.PropertyDeclaration: {
const isAbstract = (0, node_utils_1.hasModifier)(SyntaxKind.AbstractKeyword, node);
const isAccessor = (0, node_utils_1.hasModifier)(SyntaxKind.AccessorKeyword, node);
// eslint-disable-next-line @typescript-eslint/explicit-function-return-type -- TODO - add ignore IIFE option
const type = (() => {
if (isAccessor) {
if (isAbstract) {
return ts_estree_1.AST_NODE_TYPES.TSAbstractAccessorProperty;
}
return ts_estree_1.AST_NODE_TYPES.AccessorProperty;
}
if (isAbstract) {
return ts_estree_1.AST_NODE_TYPES.TSAbstractPropertyDefinition;
}
return ts_estree_1.AST_NODE_TYPES.PropertyDefinition;
})();
const result = this.createNode(node, {
type,
key: this.convertChild(node.name),
value: isAbstract ? null : this.convertChild(node.initializer),
computed: (0, node_utils_1.isComputedProperty)(node.name),
static: (0, node_utils_1.hasModifier)(SyntaxKind.StaticKeyword, node),
readonly: (0, node_utils_1.hasModifier)(SyntaxKind.ReadonlyKeyword, node) || undefined,
declare: (0, node_utils_1.hasModifier)(SyntaxKind.DeclareKeyword, node),
override: (0, node_utils_1.hasModifier)(SyntaxKind.OverrideKeyword, node),
});
if (node.type) {
result.typeAnnotation = this.convertTypeAnnotation(node.type, node);
}
const decorators = (0, getModifiers_1.getDecorators)(node);
if (decorators) {
result.decorators = decorators.map(el => this.convertChild(el));
}
const accessibility = (0, node_utils_1.getTSNodeAccessibility)(node);
if (accessibility) {
result.accessibility = accessibility;
}
if ((node.name.kind === SyntaxKind.Identifier ||
node.name.kind === SyntaxKind.ComputedPropertyName ||
node.name.kind === SyntaxKind.PrivateIdentifier) &&
node.questionToken) {
result.optional = true;
}
if (node.exclamationToken) {
result.definite = true;
}
if (result.key.type === ts_estree_1.AST_NODE_TYPES.Literal && node.questionToken) {
result.optional = true;
}
return result;
}
case SyntaxKind.GetAccessor:
case SyntaxKind.SetAccessor: {
if (node.parent.kind === SyntaxKind.InterfaceDeclaration ||
node.parent.kind === SyntaxKind.TypeLiteral) {
return this.convertMethodSignature(node);
}
}
// otherwise, it is a non-type accessor - intentional fallthrough
case SyntaxKind.MethodDeclaration: {
const method = this.createNode(node, {
type: !node.body
? ts_estree_1.AST_NODE_TYPES.TSEmptyBodyFunctionExpression
: ts_estree_1.AST_NODE_TYPES.FunctionExpression,
id: null,
generator: !!node.asteriskToken,
expression: false,
async: (0, node_utils_1.hasModifier)(SyntaxKind.AsyncKeyword, node),
body: this.convertChild(node.body),
range: [node.parameters.pos - 1, node.end],
params: [],
});
if (node.type) {
method.returnType = this.convertTypeAnnotation(node.type, node);
}
// Process typeParameters
if (node.typeParameters) {
method.typeParameters =
this.convertTSTypeParametersToTypeParametersDeclaration(node.typeParameters);
this.fixParentLocation(method, method.typeParameters.range);
}
let result;
if (parent.kind === SyntaxKind.ObjectLiteralExpression) {
method.params = node.parameters.map(el => this.convertChild(el));
result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Property,
key: this.convertChild(node.name),
value: method,
computed: (0, node_utils_1.isComputedProperty)(node.name),
method: node.kind === SyntaxKind.MethodDeclaration,
shorthand: false,
kind: 'init',
});
}
else {
// class
/**
* Unlike in object literal methods, class method params can have decorators
*/
method.params = this.convertParameters(node.parameters);
/**
* TypeScript class methods can be defined as "abstract"
*/
const methodDefinitionType = (0, node_utils_1.hasModifier)(SyntaxKind.AbstractKeyword, node)
? ts_estree_1.AST_NODE_TYPES.TSAbstractMethodDefinition
: ts_estree_1.AST_NODE_TYPES.MethodDefinition;
result = this.createNode(node, {
type: methodDefinitionType,
key: this.convertChild(node.name),
value: method,
computed: (0, node_utils_1.isComputedProperty)(node.name),
static: (0, node_utils_1.hasModifier)(SyntaxKind.StaticKeyword, node),
kind: 'method',
override: (0, node_utils_1.hasModifier)(SyntaxKind.OverrideKeyword, node),
});
const decorators = (0, getModifiers_1.getDecorators)(node);
if (decorators) {
result.decorators = decorators.map(el => this.convertChild(el));
}
const accessibility = (0, node_utils_1.getTSNodeAccessibility)(node);
if (accessibility) {
result.accessibility = accessibility;
}
}
if (node.questionToken) {
result.optional = true;
}
if (node.kind === SyntaxKind.GetAccessor) {
result.kind = 'get';
}
else if (node.kind === SyntaxKind.SetAccessor) {
result.kind = 'set';
}
else if (!result.static &&
node.name.kind === SyntaxKind.StringLiteral &&
node.name.text === 'constructor' &&
result.type !== ts_estree_1.AST_NODE_TYPES.Property) {
result.kind = 'constructor';
}
return result;
}
// TypeScript uses this even for static methods named "constructor"
case SyntaxKind.Constructor: {
const lastModifier = (0, node_utils_1.getLastModifier)(node);
const constructorToken = (lastModifier && (0, node_utils_1.findNextToken)(lastModifier, node, this.ast)) ||
node.getFirstToken();
const constructor = this.createNode(node, {
type: !node.body
? ts_estree_1.AST_NODE_TYPES.TSEmptyBodyFunctionExpression
: ts_estree_1.AST_NODE_TYPES.FunctionExpression,
id: null,
params: this.convertParameters(node.parameters),
generator: false,
expression: false,
async: false,
body: this.convertChild(node.body),
range: [node.parameters.pos - 1, node.end],
});
// Process typeParameters
if (node.typeParameters) {
constructor.typeParameters =
this.convertTSTypeParametersToTypeParametersDeclaration(node.typeParameters);
this.fixParentLocation(constructor, constructor.typeParameters.range);
}
// Process returnType
if (node.type) {
constructor.returnType = this.convertTypeAnnotation(node.type, node);
}
const constructorKey = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Identifier,
name: 'constructor',
range: [constructorToken.getStart(this.ast), constructorToken.end],
});
const isStatic = (0, node_utils_1.hasModifier)(SyntaxKind.StaticKeyword, node);
const result = this.createNode(node, {
type: (0, node_utils_1.hasModifier)(SyntaxKind.AbstractKeyword, node)
? ts_estree_1.AST_NODE_TYPES.TSAbstractMethodDefinition
: ts_estree_1.AST_NODE_TYPES.MethodDefinition,
key: constructorKey,
value: constructor,
computed: false,
static: isStatic,
kind: isStatic ? 'method' : 'constructor',
override: false,
});
const accessibility = (0, node_utils_1.getTSNodeAccessibility)(node);
if (accessibility) {
result.accessibility = accessibility;
}
return result;
}
case SyntaxKind.FunctionExpression: {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.FunctionExpression,
id: this.convertChild(node.name),
generator: !!node.asteriskToken,
params: this.convertParameters(node.parameters),
body: this.convertChild(node.body),
async: (0, node_utils_1.hasModifier)(SyntaxKind.AsyncKeyword, node),
expression: false,
});
// Process returnType
if (node.type) {
result.returnType = this.convertTypeAnnotation(node.type, node);
}
// Process typeParameters
if (node.typeParameters) {
result.typeParameters =
this.convertTSTypeParametersToTypeParametersDeclaration(node.typeParameters);
}
return result;
}
case SyntaxKind.SuperKeyword:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Super,
});
case SyntaxKind.ArrayBindingPattern:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ArrayPattern,
elements: node.elements.map(el => this.convertPattern(el)),
});
// occurs with missing array elements like [,]
case SyntaxKind.OmittedExpression:
return null;
case SyntaxKind.ObjectBindingPattern:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ObjectPattern,
properties: node.elements.map(el => this.convertPattern(el)),
});
case SyntaxKind.BindingElement: {
if (parent.kind === SyntaxKind.ArrayBindingPattern) {
const arrayItem = this.convertChild(node.name, parent);
if (node.initializer) {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.AssignmentPattern,
left: arrayItem,
right: this.convertChild(node.initializer),
});
}
else if (node.dotDotDotToken) {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.RestElement,
argument: arrayItem,
});
}
else {
return arrayItem;
}
}
else {
let result;
if (node.dotDotDotToken) {
result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.RestElement,
argument: this.convertChild((_a = node.propertyName) !== null && _a !== void 0 ? _a : node.name),
});
}
else {
result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Property,
key: this.convertChild((_b = node.propertyName) !== null && _b !== void 0 ? _b : node.name),
value: this.convertChild(node.name),
computed: Boolean(node.propertyName &&
node.propertyName.kind === SyntaxKind.ComputedPropertyName),
method: false,
shorthand: !node.propertyName,
kind: 'init',
});
}
if (node.initializer) {
result.value = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.AssignmentPattern,
left: this.convertChild(node.name),
right: this.convertChild(node.initializer),
range: [node.name.getStart(this.ast), node.initializer.end],
});
}
return result;
}
}
case SyntaxKind.ArrowFunction: {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ArrowFunctionExpression,
generator: false,
id: null,
params: this.convertParameters(node.parameters),
body: this.convertChild(node.body),
async: (0, node_utils_1.hasModifier)(SyntaxKind.AsyncKeyword, node),
expression: node.body.kind !== SyntaxKind.Block,
});
// Process returnType
if (node.type) {
result.returnType = this.convertTypeAnnotation(node.type, node);
}
// Process typeParameters
if (node.typeParameters) {
result.typeParameters =
this.convertTSTypeParametersToTypeParametersDeclaration(node.typeParameters);
}
return result;
}
case SyntaxKind.YieldExpression:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.YieldExpression,
delegate: !!node.asteriskToken,
argument: this.convertChild(node.expression),
});
case SyntaxKind.AwaitExpression:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.AwaitExpression,
argument: this.convertChild(node.expression),
});
// Template Literals
case SyntaxKind.NoSubstitutionTemplateLiteral:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TemplateLiteral,
quasis: [
this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TemplateElement,
value: {
raw: this.ast.text.slice(node.getStart(this.ast) + 1, node.end - 1),
cooked: node.text,
},
tail: true,
}),
],
expressions: [],
});
case SyntaxKind.TemplateExpression: {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TemplateLiteral,
quasis: [this.convertChild(node.head)],
expressions: [],
});
node.templateSpans.forEach(templateSpan => {
result.expressions.push(this.convertChild(templateSpan.expression));
result.quasis.push(this.convertChild(templateSpan.literal));
});
return result;
}
case SyntaxKind.TaggedTemplateExpression:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TaggedTemplateExpression,
typeParameters: node.typeArguments
? this.convertTypeArgumentsToTypeParameters(node.typeArguments, node)
: undefined,
tag: this.convertChild(node.tag),
quasi: this.convertChild(node.template),
});
case SyntaxKind.TemplateHead:
case SyntaxKind.TemplateMiddle:
case SyntaxKind.TemplateTail: {
const tail = node.kind === SyntaxKind.TemplateTail;
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TemplateElement,
value: {
raw: this.ast.text.slice(node.getStart(this.ast) + 1, node.end - (tail ? 1 : 2)),
cooked: node.text,
},
tail,
});
}
// Patterns
case SyntaxKind.SpreadAssignment:
case SyntaxKind.SpreadElement: {
if (this.allowPattern) {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.RestElement,
argument: this.convertPattern(node.expression),
});
}
else {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.SpreadElement,
argument: this.convertChild(node.expression),
});
}
}
case SyntaxKind.Parameter: {
let parameter;
let result;
if (node.dotDotDotToken) {
parameter = result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.RestElement,
argument: this.convertChild(node.name),
});
}
else if (node.initializer) {
parameter = this.convertChild(node.name);
result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.AssignmentPattern,
left: parameter,
right: this.convertChild(node.initializer),
});
const modifiers = (0, getModifiers_1.getModifiers)(node);
if (modifiers) {
// AssignmentPattern should not contain modifiers in range
result.range[0] = parameter.range[0];
result.loc = (0, node_utils_1.getLocFor)(result.range[0], result.range[1], this.ast);
}
}
else {
parameter = result = this.convertChild(node.name, parent);
}
if (node.type) {
parameter.typeAnnotation = this.convertTypeAnnotation(node.type, node);
this.fixParentLocation(parameter, parameter.typeAnnotation.range);
}
if (node.questionToken) {
if (node.questionToken.end > parameter.range[1]) {
parameter.range[1] = node.questionToken.end;
parameter.loc.end = (0, node_utils_1.getLineAndCharacterFor)(parameter.range[1], this.ast);
}
parameter.optional = true;
}
const modifiers = (0, getModifiers_1.getModifiers)(node);
if (modifiers) {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSParameterProperty,
accessibility: (_c = (0, node_utils_1.getTSNodeAccessibility)(node)) !== null && _c !== void 0 ? _c : undefined,
readonly: (0, node_utils_1.hasModifier)(SyntaxKind.ReadonlyKeyword, node) || undefined,
static: (0, node_utils_1.hasModifier)(SyntaxKind.StaticKeyword, node) || undefined,
export: (0, node_utils_1.hasModifier)(SyntaxKind.ExportKeyword, node) || undefined,
override: (0, node_utils_1.hasModifier)(SyntaxKind.OverrideKeyword, node) || undefined,
parameter: result,
});
}
return result;
}
// Classes
case SyntaxKind.ClassDeclaration:
case SyntaxKind.ClassExpression: {
const heritageClauses = (_d = node.heritageClauses) !== null && _d !== void 0 ? _d : [];
const classNodeType = node.kind === SyntaxKind.ClassDeclaration
? ts_estree_1.AST_NODE_TYPES.ClassDeclaration
: ts_estree_1.AST_NODE_TYPES.ClassExpression;
const superClass = heritageClauses.find(clause => clause.token === SyntaxKind.ExtendsKeyword);
const implementsClause = heritageClauses.find(clause => clause.token === SyntaxKind.ImplementsKeyword);
const result = this.createNode(node, {
type: classNodeType,
id: this.convertChild(node.name),
body: this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ClassBody,
body: [],
range: [node.members.pos - 1, node.end],
}),
superClass: (superClass === null || superClass === void 0 ? void 0 : superClass.types[0])
? this.convertChild(superClass.types[0].expression)
: null,
});
if (superClass) {
if (superClass.types.length > 1) {
throw (0, node_utils_1.createError)(this.ast, superClass.types[1].pos, 'Classes can only extend a single class.');
}
if ((_e = superClass.types[0]) === null || _e === void 0 ? void 0 : _e.typeArguments) {
result.superTypeParameters =
this.convertTypeArgumentsToTypeParameters(superClass.types[0].typeArguments, superClass.types[0]);
}
}
if (node.typeParameters) {
result.typeParameters =
this.convertTSTypeParametersToTypeParametersDeclaration(node.typeParameters);
}
if (implementsClause) {
result.implements = implementsClause.types.map(el => this.convertChild(el));
}
/**
* TypeScript class declarations can be defined as "abstract"
*/
if ((0, node_utils_1.hasModifier)(SyntaxKind.AbstractKeyword, node)) {
result.abstract = true;
}
if ((0, node_utils_1.hasModifier)(SyntaxKind.DeclareKeyword, node)) {
result.declare = true;
}
const decorators = (0, getModifiers_1.getDecorators)(node);
if (decorators) {
result.decorators = decorators.map(el => this.convertChild(el));
}
const filteredMembers = node.members.filter(node_utils_1.isESTreeClassMember);
if (filteredMembers.length) {
result.body.body = filteredMembers.map(el => this.convertChild(el));
}
// check for exports
return this.fixExports(node, result);
}
// Modules
case SyntaxKind.ModuleBlock:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSModuleBlock,
body: this.convertBodyExpressions(node.statements, node),
});
case SyntaxKind.ImportDeclaration: {
this.assertModuleSpecifier(node, false);
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ImportDeclaration,
source: this.convertChild(node.moduleSpecifier),
specifiers: [],
importKind: 'value',
assertions: this.convertAssertClasue(node.assertClause),
});
if (node.importClause) {
if (node.importClause.isTypeOnly) {
result.importKind = 'type';
}
if (node.importClause.name) {
result.specifiers.push(this.convertChild(node.importClause));
}
if (node.importClause.namedBindings) {
switch (node.importClause.namedBindings.kind) {
case SyntaxKind.NamespaceImport:
result.specifiers.push(this.convertChild(node.importClause.namedBindings));
break;
case SyntaxKind.NamedImports:
result.specifiers = result.specifiers.concat(node.importClause.namedBindings.elements.map(el => this.convertChild(el)));
break;
}
}
}
return result;
}
case SyntaxKind.NamespaceImport:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ImportNamespaceSpecifier,
local: this.convertChild(node.name),
});
case SyntaxKind.ImportSpecifier:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ImportSpecifier,
local: this.convertChild(node.name),
imported: this.convertChild((_f = node.propertyName) !== null && _f !== void 0 ? _f : node.name),
importKind: node.isTypeOnly ? 'type' : 'value',
});
case SyntaxKind.ImportClause: {
const local = this.convertChild(node.name);
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ImportDefaultSpecifier,
local,
range: local.range,
});
}
case SyntaxKind.ExportDeclaration: {
if (((_g = node.exportClause) === null || _g === void 0 ? void 0 : _g.kind) === SyntaxKind.NamedExports) {
this.assertModuleSpecifier(node, true);
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ExportNamedDeclaration,
source: this.convertChild(node.moduleSpecifier),
specifiers: node.exportClause.elements.map(el => this.convertChild(el)),
exportKind: node.isTypeOnly ? 'type' : 'value',
declaration: null,
assertions: this.convertAssertClasue(node.assertClause),
});
}
else {
this.assertModuleSpecifier(node, false);
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ExportAllDeclaration,
source: this.convertChild(node.moduleSpecifier),
exportKind: node.isTypeOnly ? 'type' : 'value',
exported:
// note - for compat with 3.7.x, where node.exportClause is always undefined and
// SyntaxKind.NamespaceExport does not exist yet (i.e. is undefined), this
// cannot be shortened to an optional chain, or else you end up with
// undefined === undefined, and the true path will hard error at runtime
node.exportClause &&
node.exportClause.kind === SyntaxKind.NamespaceExport
? this.convertChild(node.exportClause.name)
: null,
assertions: this.convertAssertClasue(node.assertClause),
});
}
}
case SyntaxKind.ExportSpecifier:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ExportSpecifier,
local: this.convertChild((_h = node.propertyName) !== null && _h !== void 0 ? _h : node.name),
exported: this.convertChild(node.name),
exportKind: node.isTypeOnly ? 'type' : 'value',
});
case SyntaxKind.ExportAssignment:
if (node.isExportEquals) {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSExportAssignment,
expression: this.convertChild(node.expression),
});
}
else {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ExportDefaultDeclaration,
declaration: this.convertChild(node.expression),
exportKind: 'value',
});
}
// Unary Operations
case SyntaxKind.PrefixUnaryExpression:
case SyntaxKind.PostfixUnaryExpression: {
const operator = (0, node_utils_1.getTextForTokenKind)(node.operator);
/**
* ESTree uses UpdateExpression for ++/--
*/
if (operator === '++' || operator === '--') {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.UpdateExpression,
operator,
prefix: node.kind === SyntaxKind.PrefixUnaryExpression,
argument: this.convertChild(node.operand),
});
}
else {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.UnaryExpression,
operator,
prefix: node.kind === SyntaxKind.PrefixUnaryExpression,
argument: this.convertChild(node.operand),
});
}
}
case SyntaxKind.DeleteExpression:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.UnaryExpression,
operator: 'delete',
prefix: true,
argument: this.convertChild(node.expression),
});
case SyntaxKind.VoidExpression:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.UnaryExpression,
operator: 'void',
prefix: true,
argument: this.convertChild(node.expression),
});
case SyntaxKind.TypeOfExpression:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.UnaryExpression,
operator: 'typeof',
prefix: true,
argument: this.convertChild(node.expression),
});
case SyntaxKind.TypeOperator:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSTypeOperator,
operator: (0, node_utils_1.getTextForTokenKind)(node.operator),
typeAnnotation: this.convertChild(node.type),
});
// Binary Operations
case SyntaxKind.BinaryExpression: {
// TypeScript uses BinaryExpression for sequences as well
if ((0, node_utils_1.isComma)(node.operatorToken)) {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.SequenceExpression,
expressions: [],
});
const left = this.convertChild(node.left);
if (left.type === ts_estree_1.AST_NODE_TYPES.SequenceExpression &&
node.left.kind !== SyntaxKind.ParenthesizedExpression) {
result.expressions = result.expressions.concat(left.expressions);
}
else {
result.expressions.push(left);
}
result.expressions.push(this.convertChild(node.right));
return result;
}
else {
const type = (0, node_utils_1.getBinaryExpressionType)(node.operatorToken);
if (this.allowPattern &&
type === ts_estree_1.AST_NODE_TYPES.AssignmentExpression) {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.AssignmentPattern,
left: this.convertPattern(node.left, node),
right: this.convertChild(node.right),
});
}
return this.createNode(node, {
type,
operator: (0, node_utils_1.getTextForTokenKind)(node.operatorToken.kind),
left: this.converter(node.left, node, this.inTypeMode, type === ts_estree_1.AST_NODE_TYPES.AssignmentExpression),
right: this.convertChild(node.right),
});
}
}
case SyntaxKind.PropertyAccessExpression: {
const object = this.convertChild(node.expression);
const property = this.convertChild(node.name);
const computed = false;
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.MemberExpression,
object,
property,
computed,
optional: node.questionDotToken !== undefined,
});
return this.convertChainExpression(result, node);
}
case SyntaxKind.ElementAccessExpression: {
const object = this.convertChild(node.expression);
const property = this.convertChild(node.argumentExpression);
const computed = true;
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.MemberExpression,
object,
property,
computed,
optional: node.questionDotToken !== undefined,
});
return this.convertChainExpression(result, node);
}
case SyntaxKind.CallExpression: {
if (node.expression.kind === SyntaxKind.ImportKeyword) {
if (node.arguments.length !== 1 && node.arguments.length !== 2) {
throw (0, node_utils_1.createError)(this.ast, node.arguments.pos, 'Dynamic import requires exactly one or two arguments.');
}
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ImportExpression,
source: this.convertChild(node.arguments[0]),
attributes: node.arguments[1]
? this.convertChild(node.arguments[1])
: null,
});
}
const callee = this.convertChild(node.expression);
const args = node.arguments.map(el => this.convertChild(el));
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.CallExpression,
callee,
arguments: args,
optional: node.questionDotToken !== undefined,
});
if (node.typeArguments) {
result.typeParameters = this.convertTypeArgumentsToTypeParameters(node.typeArguments, node);
}
return this.convertChainExpression(result, node);
}
case SyntaxKind.NewExpression: {
// NOTE - NewExpression cannot have an optional chain in it
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.NewExpression,
callee: this.convertChild(node.expression),
arguments: node.arguments
? node.arguments.map(el => this.convertChild(el))
: [],
});
if (node.typeArguments) {
result.typeParameters = this.convertTypeArgumentsToTypeParameters(node.typeArguments, node);
}
return result;
}
case SyntaxKind.ConditionalExpression:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ConditionalExpression,
test: this.convertChild(node.condition),
consequent: this.convertChild(node.whenTrue),
alternate: this.convertChild(node.whenFalse),
});
case SyntaxKind.MetaProperty: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.MetaProperty,
meta: this.createNode(
// TODO: do we really want to convert it to Token?
node.getFirstToken(), {
type: ts_estree_1.AST_NODE_TYPES.Identifier,
name: (0, node_utils_1.getTextForTokenKind)(node.keywordToken),
}),
property: this.convertChild(node.name),
});
}
case SyntaxKind.Decorator: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Decorator,
expression: this.convertChild(node.expression),
});
}
// Literals
case SyntaxKind.StringLiteral: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Literal,
value: parent.kind === SyntaxKind.JsxAttribute
? (0, node_utils_1.unescapeStringLiteralText)(node.text)
: node.text,
raw: node.getText(),
});
}
case SyntaxKind.NumericLiteral: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Literal,
value: Number(node.text),
raw: node.getText(),
});
}
case SyntaxKind.BigIntLiteral: {
const range = (0, node_utils_1.getRange)(node, this.ast);
const rawValue = this.ast.text.slice(range[0], range[1]);
const bigint = rawValue
// remove suffix `n`
.slice(0, -1)
// `BigInt` doesn't accept numeric separator
// and `bigint` property should not include numeric separator
.replace(/_/g, '');
const value = typeof BigInt !== 'undefined' ? BigInt(bigint) : null;
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Literal,
raw: rawValue,
value: value,
bigint: value == null ? bigint : String(value),
range,
});
}
case SyntaxKind.RegularExpressionLiteral: {
const pattern = node.text.slice(1, node.text.lastIndexOf('/'));
const flags = node.text.slice(node.text.lastIndexOf('/') + 1);
let regex = null;
try {
regex = new RegExp(pattern, flags);
}
catch (exception) {
regex = null;
}
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Literal,
value: regex,
raw: node.text,
regex: {
pattern,
flags,
},
});
}
case SyntaxKind.TrueKeyword:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Literal,
value: true,
raw: 'true',
});
case SyntaxKind.FalseKeyword:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Literal,
value: false,
raw: 'false',
});
case SyntaxKind.NullKeyword: {
if (!version_check_1.typescriptVersionIsAtLeast['4.0'] && this.inTypeMode) {
// 4.0 started nesting null types inside a LiteralType node, but we still need to support pre-4.0
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSNullKeyword,
});
}
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.Literal,
value: null,
raw: 'null',
});
}
case SyntaxKind.EmptyStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.EmptyStatement,
});
case SyntaxKind.DebuggerStatement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.DebuggerStatement,
});
// JSX
case SyntaxKind.JsxElement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXElement,
openingElement: this.convertChild(node.openingElement),
closingElement: this.convertChild(node.closingElement),
children: node.children.map(el => this.convertChild(el)),
});
case SyntaxKind.JsxFragment:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXFragment,
openingFragment: this.convertChild(node.openingFragment),
closingFragment: this.convertChild(node.closingFragment),
children: node.children.map(el => this.convertChild(el)),
});
case SyntaxKind.JsxSelfClosingElement: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXElement,
/**
* Convert SyntaxKind.JsxSelfClosingElement to SyntaxKind.JsxOpeningElement,
* TypeScript does not seem to have the idea of openingElement when tag is self-closing
*/
openingElement: this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXOpeningElement,
typeParameters: node.typeArguments
? this.convertTypeArgumentsToTypeParameters(node.typeArguments, node)
: undefined,
selfClosing: true,
name: this.convertJSXTagName(node.tagName, node),
attributes: node.attributes.properties.map(el => this.convertChild(el)),
range: (0, node_utils_1.getRange)(node, this.ast),
}),
closingElement: null,
children: [],
});
}
case SyntaxKind.JsxOpeningElement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXOpeningElement,
typeParameters: node.typeArguments
? this.convertTypeArgumentsToTypeParameters(node.typeArguments, node)
: undefined,
selfClosing: false,
name: this.convertJSXTagName(node.tagName, node),
attributes: node.attributes.properties.map(el => this.convertChild(el)),
});
case SyntaxKind.JsxClosingElement:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXClosingElement,
name: this.convertJSXTagName(node.tagName, node),
});
case SyntaxKind.JsxOpeningFragment:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXOpeningFragment,
});
case SyntaxKind.JsxClosingFragment:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXClosingFragment,
});
case SyntaxKind.JsxExpression: {
const expression = node.expression
? this.convertChild(node.expression)
: this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXEmptyExpression,
range: [node.getStart(this.ast) + 1, node.getEnd() - 1],
});
if (node.dotDotDotToken) {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXSpreadChild,
expression,
});
}
else {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXExpressionContainer,
expression,
});
}
}
case SyntaxKind.JsxAttribute: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXAttribute,
name: this.convertJSXNamespaceOrIdentifier(node.name),
value: this.convertChild(node.initializer),
});
}
case SyntaxKind.JsxText: {
const start = node.getFullStart();
const end = node.getEnd();
const text = this.ast.text.slice(start, end);
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXText,
value: (0, node_utils_1.unescapeStringLiteralText)(text),
raw: text,
range: [start, end],
});
}
case SyntaxKind.JsxSpreadAttribute:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.JSXSpreadAttribute,
argument: this.convertChild(node.expression),
});
case SyntaxKind.QualifiedName: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSQualifiedName,
left: this.convertChild(node.left),
right: this.convertChild(node.right),
});
}
// TypeScript specific
case SyntaxKind.TypeReference: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSTypeReference,
typeName: this.convertType(node.typeName),
typeParameters: node.typeArguments
? this.convertTypeArgumentsToTypeParameters(node.typeArguments, node)
: undefined,
});
}
case SyntaxKind.TypeParameter: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSTypeParameter,
name: this.convertType(node.name),
constraint: node.constraint
? this.convertType(node.constraint)
: undefined,
default: node.default ? this.convertType(node.default) : undefined,
in: (0, node_utils_1.hasModifier)(SyntaxKind.InKeyword, node),
out: (0, node_utils_1.hasModifier)(SyntaxKind.OutKeyword, node),
const: (0, node_utils_1.hasModifier)(SyntaxKind.ConstKeyword, node),
});
}
case SyntaxKind.ThisType:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSThisType,
});
case SyntaxKind.AnyKeyword:
case SyntaxKind.BigIntKeyword:
case SyntaxKind.BooleanKeyword:
case SyntaxKind.NeverKeyword:
case SyntaxKind.NumberKeyword:
case SyntaxKind.ObjectKeyword:
case SyntaxKind.StringKeyword:
case SyntaxKind.SymbolKeyword:
case SyntaxKind.UnknownKeyword:
case SyntaxKind.VoidKeyword:
case SyntaxKind.UndefinedKeyword:
case SyntaxKind.IntrinsicKeyword: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES[`TS${SyntaxKind[node.kind]}`],
});
}
case SyntaxKind.NonNullExpression: {
const nnExpr = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSNonNullExpression,
expression: this.convertChild(node.expression),
});
return this.convertChainExpression(nnExpr, node);
}
case SyntaxKind.TypeLiteral: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSTypeLiteral,
members: node.members.map(el => this.convertChild(el)),
});
}
case SyntaxKind.ArrayType: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSArrayType,
elementType: this.convertType(node.elementType),
});
}
case SyntaxKind.IndexedAccessType: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSIndexedAccessType,
objectType: this.convertType(node.objectType),
indexType: this.convertType(node.indexType),
});
}
case SyntaxKind.ConditionalType: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSConditionalType,
checkType: this.convertType(node.checkType),
extendsType: this.convertType(node.extendsType),
trueType: this.convertType(node.trueType),
falseType: this.convertType(node.falseType),
});
}
case SyntaxKind.TypeQuery: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSTypeQuery,
exprName: this.convertType(node.exprName),
typeParameters: node.typeArguments &&
this.convertTypeArgumentsToTypeParameters(node.typeArguments, node),
});
}
case SyntaxKind.MappedType: {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSMappedType,
typeParameter: this.convertType(node.typeParameter),
nameType: (_j = this.convertType(node.nameType)) !== null && _j !== void 0 ? _j : null,
});
if (node.readonlyToken) {
if (node.readonlyToken.kind === SyntaxKind.ReadonlyKeyword) {
result.readonly = true;
}
else {
result.readonly = (0, node_utils_1.getTextForTokenKind)(node.readonlyToken.kind);
}
}
if (node.questionToken) {
if (node.questionToken.kind === SyntaxKind.QuestionToken) {
result.optional = true;
}
else {
result.optional = (0, node_utils_1.getTextForTokenKind)(node.questionToken.kind);
}
}
if (node.type) {
result.typeAnnotation = this.convertType(node.type);
}
return result;
}
case SyntaxKind.ParenthesizedExpression:
return this.convertChild(node.expression, parent);
case SyntaxKind.TypeAliasDeclaration: {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSTypeAliasDeclaration,
id: this.convertChild(node.name),
typeAnnotation: this.convertType(node.type),
});
if ((0, node_utils_1.hasModifier)(SyntaxKind.DeclareKeyword, node)) {
result.declare = true;
}
// Process typeParameters
if (node.typeParameters) {
result.typeParameters =
this.convertTSTypeParametersToTypeParametersDeclaration(node.typeParameters);
}
// check for exports
return this.fixExports(node, result);
}
case SyntaxKind.MethodSignature: {
return this.convertMethodSignature(node);
}
case SyntaxKind.PropertySignature: {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSPropertySignature,
optional: (0, node_utils_1.isOptional)(node) || undefined,
computed: (0, node_utils_1.isComputedProperty)(node.name),
key: this.convertChild(node.name),
typeAnnotation: node.type
? this.convertTypeAnnotation(node.type, node)
: undefined,
initializer: this.convertChild(
// @ts-expect-error TODO breaking change remove this from the AST
node.initializer) || undefined,
readonly: (0, node_utils_1.hasModifier)(SyntaxKind.ReadonlyKeyword, node) || undefined,
static: (0, node_utils_1.hasModifier)(SyntaxKind.StaticKeyword, node) || undefined,
export: (0, node_utils_1.hasModifier)(SyntaxKind.ExportKeyword, node) || undefined,
});
const accessibility = (0, node_utils_1.getTSNodeAccessibility)(node);
if (accessibility) {
result.accessibility = accessibility;
}
return result;
}
case SyntaxKind.IndexSignature: {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSIndexSignature,
parameters: node.parameters.map(el => this.convertChild(el)),
});
if (node.type) {
result.typeAnnotation = this.convertTypeAnnotation(node.type, node);
}
if ((0, node_utils_1.hasModifier)(SyntaxKind.ReadonlyKeyword, node)) {
result.readonly = true;
}
const accessibility = (0, node_utils_1.getTSNodeAccessibility)(node);
if (accessibility) {
result.accessibility = accessibility;
}
if ((0, node_utils_1.hasModifier)(SyntaxKind.ExportKeyword, node)) {
result.export = true;
}
if ((0, node_utils_1.hasModifier)(SyntaxKind.StaticKeyword, node)) {
result.static = true;
}
return result;
}
case SyntaxKind.ConstructorType: {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSConstructorType,
params: this.convertParameters(node.parameters),
abstract: (0, node_utils_1.hasModifier)(SyntaxKind.AbstractKeyword, node),
});
if (node.type) {
result.returnType = this.convertTypeAnnotation(node.type, node);
}
if (node.typeParameters) {
result.typeParameters =
this.convertTSTypeParametersToTypeParametersDeclaration(node.typeParameters);
}
return result;
}
case SyntaxKind.FunctionType:
case SyntaxKind.ConstructSignature:
case SyntaxKind.CallSignature: {
const type = node.kind === SyntaxKind.ConstructSignature
? ts_estree_1.AST_NODE_TYPES.TSConstructSignatureDeclaration
: node.kind === SyntaxKind.CallSignature
? ts_estree_1.AST_NODE_TYPES.TSCallSignatureDeclaration
: ts_estree_1.AST_NODE_TYPES.TSFunctionType;
const result = this.createNode(node, {
type: type,
params: this.convertParameters(node.parameters),
});
if (node.type) {
result.returnType = this.convertTypeAnnotation(node.type, node);
}
if (node.typeParameters) {
result.typeParameters =
this.convertTSTypeParametersToTypeParametersDeclaration(node.typeParameters);
}
return result;
}
case SyntaxKind.ExpressionWithTypeArguments: {
const parentKind = parent.kind;
const type = parentKind === SyntaxKind.InterfaceDeclaration
? ts_estree_1.AST_NODE_TYPES.TSInterfaceHeritage
: parentKind === SyntaxKind.HeritageClause
? ts_estree_1.AST_NODE_TYPES.TSClassImplements
: ts_estree_1.AST_NODE_TYPES.TSInstantiationExpression;
const result = this.createNode(node, {
type,
expression: this.convertChild(node.expression),
});
if (node.typeArguments) {
result.typeParameters = this.convertTypeArgumentsToTypeParameters(node.typeArguments, node);
}
return result;
}
case SyntaxKind.InterfaceDeclaration: {
const interfaceHeritageClauses = (_k = node.heritageClauses) !== null && _k !== void 0 ? _k : [];
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSInterfaceDeclaration,
body: this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSInterfaceBody,
body: node.members.map(member => this.convertChild(member)),
range: [node.members.pos - 1, node.end],
}),
id: this.convertChild(node.name),
});
if (node.typeParameters) {
result.typeParameters =
this.convertTSTypeParametersToTypeParametersDeclaration(node.typeParameters);
}
if (interfaceHeritageClauses.length > 0) {
const interfaceExtends = [];
const interfaceImplements = [];
for (const heritageClause of interfaceHeritageClauses) {
if (heritageClause.token === SyntaxKind.ExtendsKeyword) {
for (const n of heritageClause.types) {
interfaceExtends.push(this.convertChild(n, node));
}
}
else {
for (const n of heritageClause.types) {
interfaceImplements.push(this.convertChild(n, node));
}
}
}
if (interfaceExtends.length) {
result.extends = interfaceExtends;
}
if (interfaceImplements.length) {
result.implements = interfaceImplements;
}
}
if ((0, node_utils_1.hasModifier)(SyntaxKind.AbstractKeyword, node)) {
result.abstract = true;
}
if ((0, node_utils_1.hasModifier)(SyntaxKind.DeclareKeyword, node)) {
result.declare = true;
}
// check for exports
return this.fixExports(node, result);
}
case SyntaxKind.TypePredicate: {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSTypePredicate,
asserts: node.assertsModifier !== undefined,
parameterName: this.convertChild(node.parameterName),
typeAnnotation: null,
});
/**
* Specific fix for type-guard location data
*/
if (node.type) {
result.typeAnnotation = this.convertTypeAnnotation(node.type, node);
result.typeAnnotation.loc = result.typeAnnotation.typeAnnotation.loc;
result.typeAnnotation.range =
result.typeAnnotation.typeAnnotation.range;
}
return result;
}
case SyntaxKind.ImportType:
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSImportType,
isTypeOf: !!node.isTypeOf,
parameter: this.convertChild(node.argument),
qualifier: this.convertChild(node.qualifier),
typeParameters: node.typeArguments
? this.convertTypeArgumentsToTypeParameters(node.typeArguments, node)
: null,
});
case SyntaxKind.EnumDeclaration: {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSEnumDeclaration,
id: this.convertChild(node.name),
members: node.members.map(el => this.convertChild(el)),
});
// apply modifiers first...
this.applyModifiersToResult(result, (0, getModifiers_1.getModifiers)(node));
// ...then check for exports
return this.fixExports(node, result);
}
case SyntaxKind.EnumMember: {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSEnumMember,
id: this.convertChild(node.name),
});
if (node.initializer) {
result.initializer = this.convertChild(node.initializer);
}
if (node.name.kind === ts.SyntaxKind.ComputedPropertyName) {
result.computed = true;
}
return result;
}
case SyntaxKind.ModuleDeclaration: {
const result = this.createNode(node, Object.assign({ type: ts_estree_1.AST_NODE_TYPES.TSModuleDeclaration }, (() => {
const id = this.convertChild(node.name);
const body = this.convertChild(node.body);
// the constraints checked by this function are syntactically enforced by TS
// the checks mostly exist for type's sake
if (node.flags & ts.NodeFlags.GlobalAugmentation) {
if (body == null ||
body.type === ts_estree_1.AST_NODE_TYPES.TSModuleDeclaration) {
throw new Error('Expected a valid module body');
}
if (id.type !== ts_estree_1.AST_NODE_TYPES.Identifier) {
throw new Error('global module augmentation must have an Identifier id');
}
return {
kind: 'global',
id,
body,
global: true,
};
}
else if (node.flags & ts.NodeFlags.Namespace) {
if (body == null) {
throw new Error('Expected a module body');
}
if (id.type !== ts_estree_1.AST_NODE_TYPES.Identifier) {
throw new Error('`namespace`s must have an Identifier id');
}
return {
kind: 'namespace',
id,
body,
};
}
else {
return Object.assign({ kind: 'module', id }, (body != null ? { body } : {}));
}
})()));
this.applyModifiersToResult(result, (0, getModifiers_1.getModifiers)(node));
// ...then check for exports
return this.fixExports(node, result);
}
// TypeScript specific types
case SyntaxKind.ParenthesizedType: {
return this.convertType(node.type);
}
case SyntaxKind.UnionType: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSUnionType,
types: node.types.map(el => this.convertType(el)),
});
}
case SyntaxKind.IntersectionType: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSIntersectionType,
types: node.types.map(el => this.convertType(el)),
});
}
case SyntaxKind.AsExpression: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSAsExpression,
expression: this.convertChild(node.expression),
typeAnnotation: this.convertType(node.type),
});
}
case SyntaxKind.InferType: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSInferType,
typeParameter: this.convertType(node.typeParameter),
});
}
case SyntaxKind.LiteralType: {
if (version_check_1.typescriptVersionIsAtLeast['4.0'] &&
node.literal.kind === SyntaxKind.NullKeyword) {
// 4.0 started nesting null types inside a LiteralType node
// but our AST is designed around the old way of null being a keyword
return this.createNode(node.literal, {
type: ts_estree_1.AST_NODE_TYPES.TSNullKeyword,
});
}
else {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSLiteralType,
literal: this.convertType(node.literal),
});
}
}
case SyntaxKind.TypeAssertionExpression: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSTypeAssertion,
typeAnnotation: this.convertType(node.type),
expression: this.convertChild(node.expression),
});
}
case SyntaxKind.ImportEqualsDeclaration: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSImportEqualsDeclaration,
id: this.convertChild(node.name),
moduleReference: this.convertChild(node.moduleReference),
importKind: node.isTypeOnly ? 'type' : 'value',
isExport: (0, node_utils_1.hasModifier)(SyntaxKind.ExportKeyword, node),
});
}
case SyntaxKind.ExternalModuleReference: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSExternalModuleReference,
expression: this.convertChild(node.expression),
});
}
case SyntaxKind.NamespaceExportDeclaration: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSNamespaceExportDeclaration,
id: this.convertChild(node.name),
});
}
case SyntaxKind.AbstractKeyword: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSAbstractKeyword,
});
}
// Tuple
case SyntaxKind.TupleType: {
// In TS 4.0, the `elementTypes` property was changed to `elements`.
// To support both at compile time, we cast to access the newer version
// if the former does not exist.
const elementTypes = 'elementTypes' in node
? node.elementTypes.map((el) => this.convertType(el))
: node.elements.map(el => this.convertType(el));
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSTupleType,
elementTypes,
});
}
case SyntaxKind.NamedTupleMember: {
const member = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSNamedTupleMember,
elementType: this.convertType(node.type, node),
label: this.convertChild(node.name, node),
optional: node.questionToken != null,
});
if (node.dotDotDotToken) {
// adjust the start to account for the "..."
member.range[0] = member.label.range[0];
member.loc.start = member.label.loc.start;
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSRestType,
typeAnnotation: member,
});
}
return member;
}
case SyntaxKind.OptionalType: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSOptionalType,
typeAnnotation: this.convertType(node.type),
});
}
case SyntaxKind.RestType: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSRestType,
typeAnnotation: this.convertType(node.type),
});
}
// Template Literal Types
case SyntaxKind.TemplateLiteralType: {
const result = this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSTemplateLiteralType,
quasis: [this.convertChild(node.head)],
types: [],
});
node.templateSpans.forEach(templateSpan => {
result.types.push(this.convertChild(templateSpan.type));
result.quasis.push(this.convertChild(templateSpan.literal));
});
return result;
}
case SyntaxKind.ClassStaticBlockDeclaration: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.StaticBlock,
body: this.convertBodyExpressions(node.body.statements, node),
});
}
case SyntaxKind.AssertEntry: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.ImportAttribute,
key: this.convertChild(node.name),
value: this.convertChild(node.value),
});
}
case SyntaxKind.SatisfiesExpression: {
return this.createNode(node, {
type: ts_estree_1.AST_NODE_TYPES.TSSatisfiesExpression,
expression: this.convertChild(node.expression),
typeAnnotation: this.convertChild(node.type),
});
}
default:
return this.deeplyCopy(node);
}
}
}
exports.Converter = Converter;
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