mirror of
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Prepare v0.4.1 release
This commit is contained in:
Chris Tate
+73
-2
@@ -6,6 +6,79 @@ All notable changes to scriptc will be documented in this file.
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<!-- release:start -->
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## 0.4.1
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### Highlights
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- **Profile-guided optimization:** `scriptc build --profile-generate` builds an instrumented executable, `scriptc merge-profiles` (with `--sparse`) merges the profiles its runs write, and `--profile-use` optimizes a release or speed build with the merged profile. tsc-ts built with a profile from its own type check checks other projects 1.15 to 1.2 times as fast, with the same diagnostics and memory. Builds without a profile are unchanged.
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- **Faster cold builds of large programs:** large class-based programs build in partitions instead of as one module, so their cold builds are 25 to 32% faster, and an edit to one function recompiles only its partition.
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- **npm packages:** more packages that pass builtins, classes and promises around as values now compile from their JavaScript. Among them are execa 5, hot-shots, @opentelemetry/api, async-sema, buffer-crc32, yazl, tar-stream, smol-toml and truncate-utf8-bytes. `undici` 5.x and 7.x compile from an implementation that ships with scriptc, and `isarray`, `safe-buffer` and `process-nextick-args` compile as the Node builtins they stand in for.
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- **Dynamic-tier property access goes through per-site inline caches** keyed on object shapes. On constructor-and-prototype code, the code that reads several object shapes at one site and an AST interpreter, untyped code runs 1.4 to 3 times as fast as in 0.4.0. Typed programs compile to the same code as before.
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- **Smaller arrays, class instances and number-keyed maps:**
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- The array header is 48 bytes instead of 64.
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- Small arrays start with three inline slots.
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- Instances of program class hierarchies keep their class id in the reference-count word instead of a vtable pointer.
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- `Map`s and `Set`s with number keys store 16-byte entries.
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- Together they lower the peak memory of a large TypeScript type checker by 8 to 10%, with the same output and wall time.
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### Features
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- **`for await` iterates untyped values,** including async generators, `Symbol.asyncIterator` results and synchronous iterators, whose values are awaited. `yield*` delegates inside async generators. A JavaScript generator whose return type is inferred as `any` compiles, including one that delegates to itself.
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- **`crypto.createECDH` and `ECDH.convertKey`** are supported for the 11 short Weierstrass curves mbedTLS implements, with Node 24's key formats, encodings and errors. Other curves are refused.
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- **`undici` 5.x and 7.x:** `Client`, `Pool`, `Agent`, `request`, the global dispatcher, `fetch` through a dispatcher, the error classes and the `undici:` diagnostics channels follow each version's behavior. Each importing package compiles against its own installed version. The limitations page lists the parts that differ.
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- **Packages marked as never loaded:** `"scriptc": { "packages": { "<name>": "unloaded" } }` in the entry's `package.json` makes `require("<name>")` throw Node's `MODULE_NOT_FOUND`, so optional dependencies take their absent branch.
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- **`util.promisify` of an untyped function** returns a promise-returning wrapper at run time.
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- **Destructuring with runtime computed keys** (`const { [name]: v } = source`) reads records and untyped values. A missing key gives `undefined` and the element default applies.
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- **Import cycles compile when a class is used only after both modules finish initializing.** Reaching the class earlier throws Node's `ReferenceError: Cannot access 'X' before initialization`.
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- **`await` of an untyped value adopts thenables,** including objects that define `then` at run time. `Promise.prototype` and `promise.constructor` can be read as values. A child process can be given new properties and awaited as a thenable.
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- **Function values convert their results and arguments** when they are stored in a slot whose signature has the same structure but a different shape, such as a function returning `Promise<Message>` stored in a `() => Promise<Message | undefined>` slot.
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- **Declarations from SDKs and shared type packages:** index signatures of `any`, `any[]` members, classes that a package only declares, and `Pick` views of classes compile.
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- **Builtins as values:** `bind`, `call` and `apply` work on builtin functions, and `Buffer.byteLength`, `Buffer.compare`, `Buffer.alloc`, `JSON.parse`, `fs.realpathSync` and `String.prototype` methods can be read as values. `events` and `EventEmitter` can be used as untyped constructor values.
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- **JavaScript sources:**
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- Bitwise operators convert boolean operands as `ToNumber` does.
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- `arguments.length` can be read in sloppy-mode functions with named parameters.
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- A function value in an untyped slot may have any signature.
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- Prototype methods take their JSDoc parameter types.
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- A top-level function declaration that its module reassigns works.
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- A `var` can be overwritten with a different kind of value.
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- A default-export object literal can hold class values.
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- **Index-signature records answer `"k" in record`** for literal keys. A fresh array literal spreads into an array of a wider element type. A `const` annotated with a type that resolves to `any` holds an untyped object.
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- **`Set.prototype.add` returns the Set** when its result is used, so `s.add(a).add(b)` compiles.
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- **`exec` works on regular expressions held as `any`,** and a numeric enum from a package can be read by a runtime key (`DiagLogLevel[level]`).
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- **`dns.lookup` answers that are decided at run time** can be read as untyped values, `net.connect` accepts Node's `lookup` option, and `dns.lookup` passes the `ADDRCONFIG`, `V4MAPPED` and `ALL` hints.
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- **`util.inspect`, `console.log` and `util.format` print program-declared `Error` subclasses** with Node's constructor-name header (`[Plain [Error]: m]`).
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- **Typed arrays:** `forEach`, `map`, `filter`, `some`, `every`, `find`, `findIndex`, `findLast`, `findLastIndex`, `reduce` and `reduceRight` compile on every typed-array kind. `map` and `filter` return the receiver's kind (a Buffer for a Buffer), and callbacks receive the element, index and array. `BYTES_PER_ELEMENT` reads answer the element size, including on untyped values. Reads and `in` tests of members Node 24's typed-array and Buffer prototypes lack answer `undefined` and `false`, as in Node. Destructuring assignment into typed-array elements compiles.
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- **`Math.max` and `Math.min` with spreads among other arguments** (`Math.max(...xs, 5)`) compile, with Node's NaN and ±0 rules.
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- **Generic arrow and function-expression bindings inside functions** compile when they use nothing from the enclosing function's frame.
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- **`const xs = []` inside a function** takes the element type its later writes give it, as TypeScript evolves it, instead of `number[]`. Bindings whose reads disagree or that are reassigned become dynamic arrays, as at module scope.
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### Performance
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- **Loop counters stay integers in more loops:** counters compared as `i + c` with a bound, and for-loop counters that are reset or copied inside the loop. A record-boundary scan takes 104 ms (Node: 260 ms), and a typed-array scan takes 318 ms (Node: 801 ms).
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- **Indexed reads of non-ASCII strings are inline in worker executables,** and strings of up to 2^24 UTF-16 units keep their unit table. A lexer over a 2.7 MB non-ASCII source takes 190 ms (Node: 327 ms).
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- **Worker messages:** a thread that finds its mailbox empty spins for up to 20 µs before it blocks. 100,000 round trips between the main thread and a worker take 360 ms, a quarter of Node's time.
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- **Local-time `Date` getters cache the zone offset,** UTC getters reuse the last decomposition, and integers 0 to 99 convert to strings without allocating. Local-time date formatting takes 0.81 times Node's time.
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- **Untyped code:** `%` and the bitwise operators run on integers for integral operands, `o.x += d` updates a number property in place, and array `length` reads answer from the element count.
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- **Sorts by several keys** (comparators that chain field differences with `||`, including optional number fields with a default) sort by key in the runtime instead of calling the comparator, about 24% faster on a benchmark of such sorts.
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- **Worker executables start their threads faster:** the allocator marks its memory for core dumps only when the system would write a core, which removes about 680 calls that hold the address-space lock as threads start. tsc-ts checks tRPC 6% faster at 16 checkers.
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- **The native compiler walks IR without a closure per node,** about 3 to 10% faster in the frontend and LLVM emission phases of large builds.
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- **Full cycle collections that the death rule requests run at the event loop's idle moments.** Watch-mode rebuilds of large projects are 6 to 11% faster.
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### Fixes
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- **`a?.b.c` on an `any` value short-circuits only the guarded step,** as in Node: it is `undefined` when `a` is nullish and throws when `a.b` is undefined.
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- **A failed checked cast to an optional record names the deepest failing path,** for example `expected string at $.order.owner.id, got number`.
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- **Spreading a non-iterable value held as `any`** throws Node's `x is not iterable` message.
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- **`process.versions` entries that the runtime doesn't have read as `undefined`** in projects that use `@types/node`.
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- **Functions stored in JavaScript object literals get Node's names,** taken from the property key.
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- **`monitorEventLoopDelay().percentile()` returns 511** on an empty histogram, as Node does.
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- **A CommonJS `var` statement that mixes `require()` declarators with other bindings** no longer crashes.
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- **Untyped async methods called through overrides or untyped receivers return their promises,** which fixes internal compiler errors in programs that use zod's `parseAsync` this way.
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- **TypeScript enum exports in compiled packages stay `undefined` until they are assigned,** as in Node.
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- **Element writes accept a possibly undefined index** (typed-array writes, compound and update writes, element assignments used as values and destructuring targets) and convert it with ToNumber, as element reads already did.
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<!-- release:end -->
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## 0.4.0
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### Breaking changes
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@@ -71,8 +144,6 @@ All notable changes to scriptc will be documented in this file.
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- **Diagnostic code frames window long source lines.**
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- **npm crashes, internal errors and false TDZ errors** found while compiling popular packages are fixed.
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<!-- release:end -->
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## 0.3.6
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### Features
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@@ -1,6 +1,6 @@
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{
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"name": "@scriptc/cli-darwin-arm64",
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"version": "0.4.0",
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"version": "0.4.1",
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"description": "Native scriptc compiler for darwin-arm64",
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"license": "Apache-2.0",
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"homepage": "https://scriptc.dev",
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@@ -1,6 +1,6 @@
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{
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"name": "@scriptc/cli-darwin-x64",
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"version": "0.4.0",
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"version": "0.4.1",
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"description": "Native scriptc compiler for darwin-x64",
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"license": "Apache-2.0",
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"homepage": "https://scriptc.dev",
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@@ -1,6 +1,6 @@
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{
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"name": "@scriptc/cli-linux-arm64-gnu",
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"version": "0.4.0",
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"version": "0.4.1",
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"description": "Native scriptc compiler for linux-arm64-gnu",
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"license": "Apache-2.0",
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"homepage": "https://scriptc.dev",
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@@ -1,6 +1,6 @@
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{
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"name": "@scriptc/cli-linux-arm64-musl",
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"version": "0.4.0",
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"version": "0.4.1",
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"description": "Native scriptc compiler for linux-arm64-musl",
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"license": "Apache-2.0",
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"homepage": "https://scriptc.dev",
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@@ -1,6 +1,6 @@
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{
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"name": "@scriptc/cli-linux-x64-gnu",
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"version": "0.4.0",
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"version": "0.4.1",
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"description": "Native scriptc compiler for linux-x64-gnu",
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"license": "Apache-2.0",
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"homepage": "https://scriptc.dev",
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@@ -1,6 +1,6 @@
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{
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"name": "@scriptc/cli-linux-x64-musl",
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"version": "0.4.0",
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"version": "0.4.1",
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"description": "Native scriptc compiler for linux-x64-musl",
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"license": "Apache-2.0",
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"homepage": "https://scriptc.dev",
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@@ -1,6 +1,6 @@
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{
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"name": "@scriptc/cli-win32-x64-msvc",
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"version": "0.4.0",
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"version": "0.4.1",
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"description": "Native scriptc compiler for win32-x64-msvc",
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"license": "Apache-2.0",
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"homepage": "https://scriptc.dev",
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@@ -1,6 +1,6 @@
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{
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"name": "scriptc",
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"version": "0.4.0",
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"version": "0.4.1",
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"description": "Compile ordinary TypeScript and JavaScript to small, fast native executables and WebAssembly modules that run without Node.js",
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"license": "Apache-2.0",
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"homepage": "https://scriptc.dev",
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@@ -1,6 +1,6 @@
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{
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"name": "@scriptc/compiler",
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"version": "0.4.0",
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"version": "0.4.1",
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"description": "The scriptc compiler — TypeScript/JavaScript frontend, typed IR, LLVM backend",
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"license": "Apache-2.0",
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"homepage": "https://scriptc.dev",
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@@ -1,6 +1,6 @@
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{
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"schemaVersion": 2,
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"compilerVersion": "0.4.0",
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"compilerVersion": "0.4.1",
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"coverage": [
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"Entries are projected mechanically from the compiler's own decision tables: the diagnostics registry, the unsupported-syntax dispatch tables, the stdlib and node-builtin lowering tables, and the supported-builtin-module list. Nothing is hand-maintained; the manifest regenerates byte-identically from the source tree at this version.",
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"Absence from this manifest means 'not projected', never 'unsupported'. Surfaces lowered through dedicated code paths rather than tables are not yet projected: console, JSON, Promise/async and the timer surface, the net/http/tls/https/dgram/dns/assert/test/stream/readline module member surfaces, template literals, the regex slice, global functions (parseInt, parseFloat, isNaN, isFinite), and the process surface outside its ambient slice.",
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@@ -1,6 +1,6 @@
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{
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"name": "@scriptc/experimental",
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"version": "0.4.0",
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"version": "0.4.1",
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"description": "Experimental scriptc APIs, with Node.js implementations: lifetime regions for ProgramLifetime objects, intern tables shared between threads, and per-thread slots on shared objects",
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"license": "Apache-2.0",
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"homepage": "https://scriptc.dev",
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@@ -1,6 +1,6 @@
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{
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"name": "@scriptc/llvm-darwin-arm64",
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"version": "0.4.0",
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"version": "0.4.1",
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"description": "Pinned LLVM code-generation helper for scriptc on macOS arm64",
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"license": "Apache-2.0 WITH LLVM-exception",
|
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"homepage": "https://scriptc.dev",
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@@ -1,6 +1,6 @@
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{
|
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"name": "@scriptc/llvm-darwin-x64",
|
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"version": "0.4.0",
|
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"version": "0.4.1",
|
||||
"description": "Pinned LLVM code-generation helper for scriptc on macOS x64",
|
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"license": "Apache-2.0 WITH LLVM-exception",
|
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"homepage": "https://scriptc.dev",
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|
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@@ -1,6 +1,6 @@
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{
|
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"name": "@scriptc/llvm-linux-arm64-gnu",
|
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"version": "0.4.0",
|
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"version": "0.4.1",
|
||||
"description": "Pinned LLVM code-generation helper for scriptc on Linux arm64",
|
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"license": "Apache-2.0 WITH LLVM-exception",
|
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"homepage": "https://scriptc.dev",
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|
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@@ -1,6 +1,6 @@
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{
|
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"name": "@scriptc/llvm-linux-arm64-musl",
|
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"version": "0.4.0",
|
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"version": "0.4.1",
|
||||
"description": "Statically linked LLVM code-generation helper for scriptc on Linux arm64 musl",
|
||||
"license": "Apache-2.0 WITH LLVM-exception",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/llvm-linux-x64-gnu",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "Pinned LLVM code-generation helper for scriptc on Linux x64",
|
||||
"license": "Apache-2.0 WITH LLVM-exception",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/llvm-linux-x64-musl",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "Statically linked LLVM code-generation helper for scriptc on Linux x64 musl",
|
||||
"license": "Apache-2.0 WITH LLVM-exception",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/llvm-win32-x64-msvc",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "Pinned LLVM code-generation helper for scriptc on Windows x64",
|
||||
"license": "Apache-2.0 WITH LLVM-exception",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/runtime-android-arm64",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "Precompiled scriptc library runtime pack for Android arm64",
|
||||
"license": "Apache-2.0",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/runtime-darwin-arm64",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "Precompiled scriptc runtime pack for macOS arm64",
|
||||
"license": "Apache-2.0",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/runtime-darwin-x64",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "Precompiled scriptc runtime pack for macOS x64",
|
||||
"license": "Apache-2.0",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/runtime-ios-arm64",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "Precompiled scriptc library runtime pack for iOS arm64",
|
||||
"license": "Apache-2.0",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/runtime-ios-simulator-arm64",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "Precompiled scriptc library runtime pack for iOS simulator arm64",
|
||||
"license": "Apache-2.0",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/runtime-linux-arm64-gnu",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "Precompiled scriptc runtime pack for Linux arm64 glibc",
|
||||
"license": "Apache-2.0",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/runtime-linux-arm64-musl",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "Precompiled scriptc runtime pack for Linux arm64 musl",
|
||||
"license": "Apache-2.0",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/runtime-linux-x64-gnu",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "Precompiled scriptc runtime pack for Linux x64 glibc",
|
||||
"license": "Apache-2.0",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/runtime-linux-x64-musl",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "Precompiled scriptc runtime pack for Linux x64 musl",
|
||||
"license": "Apache-2.0",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/runtime-wasm32-wasi",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "Precompiled scriptc runtime pack for WASI Preview 1",
|
||||
"license": "Apache-2.0",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/runtime-win32-x64-msvc",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "Precompiled scriptc runtime pack for Windows x64 MSVC",
|
||||
"license": "Apache-2.0",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/runtime",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "scriptc native runtime sources and vendored dependencies",
|
||||
"license": "Apache-2.0",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/threads",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "Zero-copy publication of immutable object graphs to worker threads (scriptc), with a deep-freezing Node.js implementation",
|
||||
"license": "Apache-2.0",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "@scriptc/types",
|
||||
"version": "0.4.0",
|
||||
"version": "0.4.1",
|
||||
"description": "Contract types for scriptc: type-only annotations (Int32, NoThrow, Immutable) that scriptc checks and optimizes, with no runtime semantics",
|
||||
"license": "Apache-2.0",
|
||||
"homepage": "https://scriptc.dev",
|
||||
|
||||
Reference in New Issue
Block a user