no_std for wtf8, sre_engine, compiler-core, literal by youknowone · Pull Request #7051 · RustPython/RustPython

fd 'Cargo.toml' crates/wtf8 --exec cat {}

grep -A 50 '\[workspace\.dependencies\]' Cargo.toml | head -100

# Check the actual lib.rs to see import usage and configuration
head -100 crates/wtf8/src/lib.rs

# Check how itertools and bstr are used in the code
rg -n "itertools::" crates/wtf8/src/ -A 2

# Search for actual usage of Either, Itertools, ByteSlice, ByteVec
rg "Either|Itertools|ByteSlice|ByteVec" crates/wtf8/src/ --max-count=20

# Check for any cargo features or configuration related to no_std in wtf8
rg "feature\|no_std" crates/wtf8/ -B 2 -A 2

# Check if there are any tests or CI configuration that builds with no_std
fd 'Cargo.toml|\.rs' crates/wtf8 --exec grep -l "no_std\|no-std" {}

# Let's check if bstr crate documentation or source indicates no_std requirements
# First, let me see if there's a Cargo.lock or any evidence of successful builds
git log --oneline crates/wtf8/Cargo.toml | head -5

# Check the commit that added no_std support to see what pattern was used
git show 2c5ece945 --stat | head -30

# Check if wtf8 was included in that commit and see what changes were made
git show 2c5ece945 -- crates/wtf8/ | head -200

# Check if there's any .cargo/config.toml configuration related to building crates
cat .cargo/config.toml | head -50

# Check if there are any actual usages of ascii and memchr
rg "ascii::|memchr::" crates/wtf8/src/ -A 2

# Check if any of the dependencies have been explicitly configured for no_std elsewhere
# Let's search for how other no_std crates in the workspace handle dependencies
rg "default-features.*false" Cargo.toml | head -20

# Check if there are any tests or build configurations that verify no_std compilation
rg "no.std|no-std" . --type toml | head -20

# Let me verify if these specific dependency versions support no_std out of the box
# by checking their documentation or configuration patterns used elsewhere in the repo
python3 << 'EOF'
# Check if other crates in the workspace use similar dependencies
import subprocess
import re

# Search for patterns of how dependencies are configured in Cargo.toml files
result = subprocess.run(['rg', 'ascii|bstr|itertools|memchr', '--type', 'toml', '-B2', '-A2'], 
                       capture_output=True, text=True)
print(result.stdout)
EOF

[dependencies]
itertools = { version = "0.14.0", default-features = false, features = ["use_alloc"] }

[dependencies]
itertools = { version = "0.14.0", default-features = false }