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denoland-deno/core
Luca Casonato f34fcd16ea
fix(core): let V8 drive extension ESM loads (#18997)
This now allows circular imports across extensions.

Instead of load + eval of all ESM files in declaration order, all files
are only loaded. Eval is done recursively by V8, only evaluating
files that are listed in `Extension::esm_entry_point` fields.

---------

Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
2023-05-09 12:37:13 +02:00
..
examples bench: fix benchmarks again (#18942) 2023-05-01 19:57:58 +00:00
00_primordials.js fix(core): Wrap safe collections' argument of primordials (#18750) 2023-04-26 00:36:22 +02:00
01_core.js refactor: migrate async ops to generated wrappers (#18937) 2023-05-01 17:40:00 +02:00
02_error.js fix(core): Add lint check for core (#17223) 2023-01-26 16:56:42 +05:30
async_cancel.rs refactor(cli,core,ext,rt): remove some unnecessary clone or malloc (#17274) 2023-01-05 14:29:50 -05:00
async_cell.rs docs: fix minor typo in AsyncRefCell comment (#17732) 2023-02-11 02:11:16 +00:00
bindings.js perf(core): async op pseudo-codegen and performance work (#18887) 2023-04-30 08:50:24 +00:00
bindings.rs fix(core): always report the first error on unhandled rejection (#18992) 2023-05-08 00:27:59 +02:00
Cargo.toml Revert "perf(core): use jemalloc for V8 array buffer allocator (#18875)" (#19046) 2023-05-09 03:42:34 +09:00
encode_decode_test.js chore: update copyright year to 2023 (#17247) 2023-01-02 21:00:42 +00:00
error.rs refactor(core): store v8::Global<v8::Context> in an Rc (#18749) 2023-04-19 00:52:12 +02:00
error_builder_test.js chore: update copyright year to 2023 (#17247) 2023-01-02 21:00:42 +00:00
error_codes.rs fix: add WouldBlock error (#17339) 2023-02-12 23:14:33 +01:00
extensions.rs fix(core): allow esm extensions not included in snapshot (#18980) 2023-05-04 02:44:59 +02:00
fast_string.rs refactor(core): Improve ergonomics of managing ASCII strings (#18498) 2023-04-04 06:46:31 -06:00
flags.rs chore: update copyright year to 2023 (#17247) 2023-01-02 21:00:42 +00:00
gotham_state.rs Revert "feat(core): prevent isolate drop for CLI main worker (#18059)" (#18157) 2023-03-13 12:58:17 +00:00
icudtl.dat chore: upgrade rusty_v8 to 0.62.2 (#17604) 2023-02-07 13:36:41 +01:00
inspector.rs fix(repl): print unhandled rejections and event errors (#18878) 2023-04-27 23:36:49 +02:00
internal.d.ts refactor(core): Use ObjectHasOwn instead of ObjectPrototypeHasOwnProperty (#18952) 2023-05-02 12:15:45 +02:00
io.rs feat(ext/http): Rework Deno.serve using hyper 1.0-rc3 (#18619) 2023-04-22 11:48:21 -06:00
lib.deno_core.d.ts perf(core): async op pseudo-codegen and performance work (#18887) 2023-04-30 08:50:24 +00:00
lib.rs fix(npm): canonicalize filename before returning (#18948) 2023-05-02 02:35:33 +02:00
module_specifier.rs refactor: deno_core not using std::env::current_dir (#18173) 2023-03-14 16:47:09 -04:00
modules.rs fix(core): let V8 drive extension ESM loads (#18997) 2023-05-09 12:37:13 +02:00
normalize_path.rs chore: update copyright year to 2023 (#17247) 2023-01-02 21:00:42 +00:00
ops.rs refactor(core): simplify op types and codegeneration (#18843) 2023-04-26 20:02:27 +02:00
ops_builtin.rs perf(core): async op pseudo-codegen and performance work (#18887) 2023-04-30 08:50:24 +00:00
ops_builtin_v8.rs fix(core): always report the first error on unhandled rejection (#18992) 2023-05-08 00:27:59 +02:00
ops_metrics.rs refactor(core): simplify op types and codegeneration (#18843) 2023-04-26 20:02:27 +02:00
path.rs fix(npm): canonicalize filename before returning (#18948) 2023-05-02 02:35:33 +02:00
README.md docs(core): fix example link (#18731) 2023-04-18 17:08:19 +09:00
realm.rs fix(core): always report the first error on unhandled rejection (#18992) 2023-05-08 00:27:59 +02:00
resources.rs refactor(ext/fs): boxed deno_fs::FileSystem (#18945) 2023-05-04 14:28:42 -04:00
runtime.rs fix(core): let V8 drive extension ESM loads (#18997) 2023-05-09 12:37:13 +02:00
serialize_deserialize_test.js chore: update copyright year to 2023 (#17247) 2023-01-02 21:00:42 +00:00
snapshot_util.rs Reland "perf(core): preserve ops between snapshots (#18080)" (#18272) 2023-03-18 18:30:04 -04:00
source_map.rs chore: update copyright year to 2023 (#17247) 2023-01-02 21:00:42 +00:00
task_queue.rs refactor: remove Semaphore::new(1) and use TaskQueue (#18014) 2023-03-04 20:07:11 -05:00

Deno Core Crate

crates docs

The main dependency of this crate is rusty_v8, which provides the V8-Rust bindings.

This Rust crate contains the essential V8 bindings for Deno's command-line interface (Deno CLI). The main abstraction here is the JsRuntime which provides a way to execute JavaScript.

The JsRuntime implements an event loop abstraction for the executed code that keeps track of all pending tasks (async ops, dynamic module loads). It is user's responsibility to drive that loop by using JsRuntime::run_event_loop method - it must be executed in the context of Rust's future executor (eg. tokio, smol).

Rust functions can be registered in JavaScript using deno_core::Extension. Use the Deno.core.ops.op_name() and Deno.core.opAsync("op_name", ...) functions to trigger the op function callback. A conventional way to write ops is using the deno_ops crate.

Documentation for this crate is thin at the moment. Please see hello_world.rs and http_bench_json_ops/main.rs as examples of usage.

TypeScript support and lots of other functionality are not available at this layer. See the CLI for that.