TS: only transfer offsets as part of the AST #529
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The serialized TypeScript AST contains the start/end positions of all AST nodes. Each position was encoded as an object of form
{line, character, $offset}. Having two of those per AST node accounted for quite a bit of the serialization overhead.We now only send the offset as a number, and compute the corresponding line/character in the Java side.
Some timings:
The angular runs were a bit flaky, but the others are consistently faster.