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V8 API Reference, 7.2.502.16 (for Deno 0.2.4)
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V8 API Reference, 7.2.502.16 (for Deno 0.2.4)
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Public Member Functions | |
| DummySourceStream (Local< String > source, Isolate *isolate) | |
| size_t | GetMoreData (const uint8_t **src) override |
 Public Member Functions inherited from v8::ScriptCompiler::ExternalSourceStream | |
| virtual bool | SetBookmark () |
| virtual void | ResetToBookmark () |
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inlineoverridevirtual |
V8 calls this to request the next chunk of data from the embedder. This function will be called on a background thread, so it's OK to block and wait for the data, if the embedder doesn't have data yet. Returns the length of the data returned. When the data ends, GetMoreData should return 0. Caller takes ownership of the data.
When streaming UTF-8 data, V8 handles multi-byte characters split between two data chunks, but doesn't handle multi-byte characters split between more than two data chunks. The embedder can avoid this problem by always returning at least 2 bytes of data.
When streaming UTF-16 data, V8 does not handle characters split between two data chunks. The embedder has to make sure that chunks have an even length.
If the embedder wants to cancel the streaming, they should make the next GetMoreData call return 0. V8 will interpret it as end of data (and most probably, parsing will fail). The streaming task will return as soon as V8 has parsed the data it received so far.
Implements v8::ScriptCompiler::ExternalSourceStream.
1.8.14