Reimplemented the fix from #2183 to fix building WASM files with Docker
on Windows again. The --workdir argument gives a path inside the Docker
container, so it must use forward slashes regardless of the default path
separator on the host OS.
This issue shows up when we have a zero-width token that is the target
descendant node, previously the previous sibling would be returned as
the child that contains the descendant, which is incorrect.
Currently, if a predicate is hard to match on the Rust side, a sizable
query against a very large file can take forever, and ends up hanging.
This commit adds an API function `ts_query_cursor_set_timeout_micros` to
limit how long query execution is allowed to take, thereby negating the
chance of a hang to occur.
This resolves https://github.com/tree-sitter/tree-sitter/issues/3454.
This brings the usage of wasmtime::Engine in line with how wasmtime
intends it to be used. All wasmtime functions that receive an Engine
always receive an `&Engine`, never an owned `Engine`. They are always
responsible for cloning the reference if they need it.
This brings the usage of wasmtime::Engine in line with how TSParser
treats TSLanguages: when setting a language to the parser, the parser is
responsible for cloning the reference to the TSLanguage. It is
counterintuitive for TSParser to have different behavior when receiving
wasmtime_engine_t.
C API users also expect this behavior, see "Memory Management"
[here](https://docs.wasmtime.dev/c-api/wasm_8h.html). Talking about the
C API: without this change, failing to clone the `wasmtime_engine_t`
(which, again, is never something API users need to do in wasmtime) and
then reusing the engine in multiple TSLanguages results in a use after
free. With this change, failing to call `wasm_engine_delete` on your
owned Engine results in a memory leak. Memory leaks are safer than
use-after-free.
The problem is, given an empty file, the root node of this file spans 0
bytes. As such, the logic for determining whether or not the node
precedes the range fails, and is true when it should be false.
The `tree-sitter-loader` crate currently always pulls
`tree-sitter-highlight` and `tree-sitter-tags` as dependencies.
However, apart from the tree-sitter CLI, most clients will not need both
of these libraries.
This commit makes the dependencies optional, but still includes them by
default in order not to break the backward compatibility.
