mirror of
https://gitee.com/openharmony/third_party_rust_bindgen
synced 2024-12-14 10:41:16 +00:00
61743aa190
The `syntex` crate is unmaintained. It is slow to build, and additionally it
requires that we pre-process `src/codegen/mod.rs` before we build the `bindgen`
crate.
The `quote` crate provides similar quasi-quoting functionality, is maintained,
and builds faster. It doesn't have a typed API or builders, however; it only
deals with tokens.
Before this commit:
```
$ cargo clean; cargo build
<snip>
Finished dev [unoptimized + debuginfo] target(s) in 98.75 secs
```
After this commit:
```
$ cargo clean; cargo build
<snip>
Finished dev [unoptimized + debuginfo] target(s) in 46.26 secs
```
Build time is cut in half! But what about run time?
Before this commit:
```
Generated Stylo bindings in: Duration { secs: 3, nanos: 521105668 }
```
After this commit:
```
Generated Stylo bindings in: Duration { secs: 3, nanos: 548797242 }
```
So it appears to be about 20ms slower at generating Stylo bindings, but I
suspect this is well within the noise.
Finally, this also lets us remove that nasty `mem::transmute` inside
`bindgen::ir::BindgenContext::gen` that was used for the old `syntex`
context. Now `BindgenContext` doesn't have a lifetime parameter either. This
should make it easier to revisit doing our analyses in parallel with `rayon`,
since that context was one of the things that made it hard for `BindgenContext`
to implement `Sync`.
Fixes #925
99 lines
2.3 KiB
Bash
Executable File
99 lines
2.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Usage:
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#
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# ./tests/test-one.sh <fuzzy-name>
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#
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# Generate bindings for the first match of `./tests/headers/*<fuzzy-name>*`, use
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# `rustc` to compile the bindings with unit tests enabled, and run the generated
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# layout tests.
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set -eu
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if [ $# -ne 1 ]; then
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echo "Usage: $0 <fuzzy-name>"
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exit 1
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fi
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cd "$(dirname "$0")"
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cd ..
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export RUST_BACKTRACE=1
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unique_fuzzy_file() {
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local pattern="$1"
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local results="$(find ./tests/headers -type f | egrep -i "$pattern")"
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local num_results=$(echo "$results" | wc -l)
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if [[ -z "$results" ]]; then
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>&2 echo "ERROR: no files found with pattern \"$pattern\""
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exit 1
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elif [[ "$num_results" -ne 1 ]]; then
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>&2 echo "ERROR: Expected exactly 1 result, got $num_results:"
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>&2 echo "$results"
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exit 1
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fi
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echo "$results"
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}
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TEST="$(unique_fuzzy_file "$1")"
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BINDINGS=$(mktemp -t bindings.rs.XXXXXX)
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TEST_BINDINGS_BINARY=$(mktemp -t bindings.XXXXXX)
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FLAGS="$(grep "// bindgen-flags: " "$TEST" || echo)"
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FLAGS="${FLAGS/\/\/ bindgen\-flags:/}"
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# Prepend the default flags added in test.rs's `create_bindgen_builder`.
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FLAGS="--rustfmt-bindings --with-derive-default --raw-line '' --raw-line '#![allow(dead_code, non_snake_case, non_camel_case_types, non_upper_case_globals)]' --raw-line '' $FLAGS"
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eval ./target/debug/bindgen \
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"\"$TEST\"" \
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--emit-ir \
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--emit-ir-graphviz ir.dot \
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--emit-clang-ast \
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-o "\"$BINDINGS\"" \
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$FLAGS
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rustup run nightly rustfmt "$BINDINGS" || true
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dot -Tpng ir.dot -o ir.png
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echo
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echo "=== Input header ========================================================"
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echo
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cat "$TEST"
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echo
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echo "=== Generated bindings =================================================="
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echo
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cat "$BINDINGS"
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echo
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echo "=== Diff w/ expected bindings ==========================================="
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echo
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EXPECTED=${TEST/headers/expectations\/tests}
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EXPECTED=${EXPECTED/.hpp/.rs}
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EXPECTED=${EXPECTED/.h/.rs}
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rustup run nightly rustfmt "$EXPECTED" || true
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# Don't exit early if there is a diff.
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diff -U8 "$EXPECTED" "$BINDINGS" || true
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echo
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echo "=== Building bindings ==================================================="
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echo
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rustc --test -o "$TEST_BINDINGS_BINARY" "$BINDINGS" --crate-name bindgen_test_one
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echo
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echo "=== Testing bindings ===================================================="
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echo
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"$TEST_BINDINGS_BINARY"
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