Backport implementation of satisfies

package.json

@@ -24,10 +24,10 @@
   "dependencies": {
     "@angular/compiler": "12.2.16",
     "@babel/code-frame": "7.16.7",
-    "@babel/parser": "7.18.0",
+    "@babel/parser": "7.20.1",
     "@glimmer/syntax": "0.84.2",
     "@iarna/toml": "2.2.5",
-    "@typescript-eslint/typescript-estree": "5.30.0",
+    "@typescript-eslint/typescript-estree": "5.36.2",
     "acorn": "8.8.0",
     "acorn-jsx": "5.3.2",
     "angular-estree-parser": "2.5.1",
@@ -85,7 +85,7 @@
     "semver": "7.3.7",
     "string-width": "5.0.1",
     "strip-ansi": "7.0.1",
-    "typescript": "4.7.2",
+    "typescript": "4.8.2",
     "unicode-regex": "3.0.0",
     "unified": "9.2.1",
     "vnopts": "1.0.2",
@@ -102,7 +102,7 @@
     "@types/file-entry-cache": "5.0.2",
     "@types/find-cache-dir": "3.2.1",
     "@types/jest": "27.4.1",
-    "@typescript-eslint/eslint-plugin": "5.20.0",
+    "@typescript-eslint/eslint-plugin": "5.36.2",
     "babel-jest": "27.5.1",
     "benchmark": "2.1.4",
     "browserslist-to-esbuild": "1.1.1",

src/language-js/loc.js

@@ -6,20 +6,16 @@ const isNonEmptyArray = require("../utils/is-non-empty-array.js");
  * @typedef {import("./types/estree").Node} Node
  */
 
-function locStart(node, opts) {
-  const { ignoreDecorators } = opts || {};
+function locStart(node) {
+  const start = node.range ? node.range[0] : node.start;
 
   // Handle nodes with decorators. They should start at the first decorator
-  if (!ignoreDecorators) {
-    const decorators =
-      (node.declaration && node.declaration.decorators) || node.decorators;
-
-    if (isNonEmptyArray(decorators)) {
-      return locStart(decorators[0]);
-    }
+  const decorators = node.declaration?.decorators ?? node.decorators;
+  if (isNonEmptyArray(decorators)) {
+    return Math.min(locStart(decorators[0]), start);
   }
 
-  return node.range ? node.range[0] : node.start;
+  return start;
 }
 
 function locEnd(node) {

src/language-js/needs-parens.js

@@ -15,6 +15,7 @@ const {
   isCallExpression,
   isMemberExpression,
   isObjectProperty,
+  isTSTypeExpression,
 } = require("./utils/index.js");
 
 function needsParens(path, options) {
@@ -244,14 +245,16 @@ function needsParens(path, options) {
     // fallthrough
     case "TSTypeAssertion":
     case "TSAsExpression":
+    case "TSSatisfiesExpression":
     case "LogicalExpression":
       switch (parent.type) {
+        case "TSSatisfiesExpression":
         case "TSAsExpression":
           // example: foo as unknown as Bar
-          return node.type !== "TSAsExpression";
+          return !isTSTypeExpression(node);
 
         case "ConditionalExpression":
-          return node.type === "TSAsExpression";
+          return isTSTypeExpression(node);
 
         case "CallExpression":
         case "NewExpression":
@@ -282,7 +285,7 @@ function needsParens(path, options) {
         case "AssignmentPattern":
           return (
             name === "left" &&
-            (node.type === "TSTypeAssertion" || node.type === "TSAsExpression")
+            (node.type === "TSTypeAssertion" || isTSTypeExpression(node))
           );
 
         case "LogicalExpression":
@@ -363,7 +366,7 @@ function needsParens(path, options) {
       if (
         parent.type === "UnaryExpression" ||
         parent.type === "AwaitExpression" ||
-        parent.type === "TSAsExpression" ||
+        isTSTypeExpression(parent) ||
         parent.type === "TSNonNullExpression"
       ) {
         return true;
@@ -377,6 +380,7 @@ function needsParens(path, options) {
         case "SpreadElement":
         case "SpreadProperty":
         case "TSAsExpression":
+        case "TSSatisfiesExpression":
         case "TSNonNullExpression":
         case "BindExpression":
           return true;
@@ -612,6 +616,7 @@ function needsParens(path, options) {
         case "TSTypeAssertion":
         case "TypeCastExpression":
         case "TSAsExpression":
+        case "TSSatisfiesExpression":
         case "TSNonNullExpression":
           return true;
 
@@ -661,6 +666,7 @@ function needsParens(path, options) {
           return name === "object";
 
         case "TSAsExpression":
+        case "TSSatisfiesExpression":
         case "TSNonNullExpression":
         case "BindExpression":
         case "TaggedTemplateExpression":

src/language-js/parse/postprocess/typescript.js

@@ -1,33 +1,36 @@
 "use strict";
 
+const isNonEmptyArray = require("../../../utils/is-non-empty-array.js");
 const visitNode = require("./visit-node.js");
 const throwSyntaxError = require("./throw-syntax-error.js");
 
+// Copied from https://unpkg.com/typescript@4.8.2/lib/typescript.js
+function getSourceFileOfNode(node) {
+  while (node && node.kind !== 305 /* SyntaxKind.SourceFile */) {
+    node = node.parent;
+  }
+  return node;
+}
+
 // Invalid decorators are removed since `@typescript-eslint/typescript-estree` v4
 // https://github.com/typescript-eslint/typescript-eslint/pull/2375
-function throwErrorForInvalidDecorator(
-  tsNode,
-  esTreeNode,
-  tsNodeToESTreeNodeMap
-) {
-  const tsDecorators = tsNode.decorators;
-  if (!Array.isArray(tsDecorators)) {
+// There is a `checkGrammarDecorators` in `typescript` package, consider use it directly in future
+function throwErrorForInvalidDecorator(tsNode) {
+  const { illegalDecorators } = tsNode;
+  if (!isNonEmptyArray(illegalDecorators)) {
     return;
   }
-  const esTreeDecorators = esTreeNode.decorators;
-  if (
-    !Array.isArray(esTreeDecorators) ||
-    esTreeDecorators.length !== tsDecorators.length ||
-    tsDecorators.some((tsDecorator) => {
-      const esTreeDecorator = tsNodeToESTreeNodeMap.get(tsDecorator);
-      return !esTreeDecorator || !esTreeDecorators.includes(esTreeDecorator);
-    })
-  ) {
-    throwSyntaxError(
-      esTreeNode,
-      "Leading decorators must be attached to a class declaration"
-    );
-  }
+
+  const [{ expression }] = illegalDecorators;
+
+  const sourceFile = getSourceFileOfNode(expression);
+  const [start, end] = [expression.pos, expression.end].map((position) => {
+    const { line, character: column } =
+      sourceFile.getLineAndCharacterOfPosition(position);
+    return { line: line + 1, column };
+  });
+
+  throwSyntaxError({ loc: { start, end } }, "Decorators are not valid here.");
 }
 
 // Values of abstract property is removed since `@typescript-eslint/typescript-estree` v5
@@ -66,7 +69,7 @@ function throwErrorForInvalidNodes(ast, options) {
       return;
     }
 
-    throwErrorForInvalidDecorator(tsNode, esTreeNode, tsNodeToESTreeNodeMap);
+    throwErrorForInvalidDecorator(tsNode);
     throwErrorForInvalidAbstractProperty(tsNode, esTreeNode);
   });
 }

src/language-js/print/call-arguments.js

@@ -16,6 +16,7 @@ const {
   isCallExpression,
   isStringLiteral,
   isObjectProperty,
+  isTSTypeExpression,
 } = require("../utils/index.js");
 
 const {
@@ -190,7 +191,7 @@ function couldGroupArg(arg, arrowChainRecursion = false) {
     (arg.type === "ArrayExpression" &&
       (arg.elements.length > 0 || hasComment(arg))) ||
     (arg.type === "TSTypeAssertion" && couldGroupArg(arg.expression)) ||
-    (arg.type === "TSAsExpression" && couldGroupArg(arg.expression)) ||
+    (isTSTypeExpression(arg) && couldGroupArg(arg.expression)) ||
     arg.type === "FunctionExpression" ||
     (arg.type === "ArrowFunctionExpression" &&
       // we want to avoid breaking inside composite return types but not simple keywords

src/language-js/print/decorators.js

@@ -72,8 +72,7 @@ function hasDecoratorsBeforeExport(node) {
   const decorators = node.declaration && node.declaration.decorators;
 
   return (
-    isNonEmptyArray(decorators) &&
-    locStart(node, { ignoreDecorators: true }) > locStart(decorators[0])
+    isNonEmptyArray(decorators) && locStart(node) === locStart(decorators[0])
   );
 }
 

src/language-js/print/template-literal.js

@@ -22,6 +22,7 @@ const {
   isSimpleTemplateLiteral,
   hasComment,
   isMemberExpression,
+  isTSTypeExpression,
 } = require("../utils/index.js");
 
 function printTemplateLiteral(path, print, options) {
@@ -90,7 +91,7 @@ function printTemplateLiteral(path, print, options) {
           isMemberExpression(expression) ||
           expression.type === "ConditionalExpression" ||
           expression.type === "SequenceExpression" ||
-          expression.type === "TSAsExpression" ||
+          isTSTypeExpression(expression) ||
           isBinaryish(expression)
         ) {
           printed = [indent([softline, printed]), softline];

src/language-js/print/ternary.js

@@ -6,6 +6,7 @@ const {
   getComments,
   isCallExpression,
   isMemberExpression,
+  isTSTypeExpression,
 } = require("../utils/index.js");
 const { locStart, locEnd } = require("../loc.js");
 const isBlockComment = require("../utils/is-block-comment.js");
@@ -165,7 +166,7 @@ function shouldExtraIndentForConditionalExpression(path) {
 
     if (
       (node.type === "NewExpression" && node.callee === child) ||
-      (node.type === "TSAsExpression" && node.expression === child)
+      (isTSTypeExpression(node) && node.expression === child)
     ) {
       parent = path.getParentNode(ancestorCount + 1);
       child = node;

src/language-js/print/typescript.js

@@ -148,8 +148,10 @@ function printTypescript(path, options, print) {
       return printTypeParameters(path, options, print, "params");
     case "TSTypeParameter":
       return printTypeParameter(path, options, print);
+    case "TSSatisfiesExpression":
     case "TSAsExpression": {
-      parts.push(print("expression"), " as ", print("typeAnnotation"));
+      const operator = node.type === "TSAsExpression" ? "as" : "satisfies";
+      parts.push(print("expression"), ` ${operator} `, print("typeAnnotation"));
       const parent = path.getParentNode();
       if (
         (isCallExpression(parent) && parent.callee === node) ||

src/language-js/utils/index.js

@@ -106,7 +106,7 @@ function hasNakedLeftSide(node) {
     node.type === "TaggedTemplateExpression" ||
     node.type === "BindExpression" ||
     (node.type === "UpdateExpression" && !node.prefix) ||
-    node.type === "TSAsExpression" ||
+    isTSTypeExpression(node) ||
     node.type === "TSNonNullExpression"
   );
 }
@@ -998,6 +998,8 @@ function startsWithNoLookaheadToken(node, forbidFunctionClassAndDoExpr) {
         node.expressions[0],
         forbidFunctionClassAndDoExpr
       );
+    // @ts-expect-error
+    case "TSSatisfiesExpression":
     case "TSAsExpression":
     case "TSNonNullExpression":
       return startsWithNoLookaheadToken(
@@ -1305,6 +1307,12 @@ const markerForIfWithoutBlockAndSameLineComment = Symbol(
   "ifWithoutBlockAndSameLineComment"
 );
 
+function isTSTypeExpression(node) {
+  return (
+    node.type === "TSAsExpression" || node.type === "TSSatisfiesExpression"
+  );
+}
+
 module.exports = {
   getFunctionParameters,
   iterateFunctionParametersPath,
@@ -1369,4 +1377,5 @@ module.exports = {
   getComments,
   CommentCheckFlags,
   markerForIfWithoutBlockAndSameLineComment,
+  isTSTypeExpression,
 };