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See Builds for ideas on how to fix a failed build, or Metadata for how to configure docs.rs builds.
If you believe this is docs.rs' fault, open an issue.
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eszip-0.79.1
eszip
The eszip format lets you losslessly serialize an ECMAScript module graph
(represented by deno_graph::ModuleGraph
) into a single compact
file.
The eszip file format is designed to be compact and streaming capable. This allows for efficient loading of large ECMAScript module graphs.
https://eszip-viewer.deno.dev/ is a tool for inspecting eszip files.
Examples
Creating an eszip
cargo run --example eszip_builder https://deno.land/std/http/file_server.ts file_server.eszip2
Viewing the contents of an eszip
cargo run --example eszip_viewer file_server.eszip2
Loading the eszip into V8
cargo run --example eszip_load file_server.eszip2 https://deno.land/std/http/file_server.ts
File format
The file format looks as follows:
Eszip:
| Magic (8) | Header size (4) | Header (n) | Header hash (32) | Sources size (4) | Sources (n) | SourceMaps size (4) | SourceMaps (n) |
Header:
( | Specifier size (4) | Specifier (n) | Entry type (1) | Entry (n) | )*
Entry (redirect):
| Specifier size (4) | Specifier (n) |
Entry (module):
| Source offset (4) | Source size (4) | SourceMap offset (4) | SourceMap size (4) | Module type (1) |
Sources:
( | Source (n) | Hash (32) | )*
SourceMaps:
( | SourceMap (n) | Hash (32) | )*
There is one optimization for empty source / source map entries. If both the offset and size are set to 0, no entry and no hash is present in the data sections for that module.
Development
When opening a PR make sure to rebuild Wasm by running:
deno task build