feat(native): implement from_owned for PyBackedString

[paullegranddc]

Motivation

We need to craft new strings for obfuscation. This force us to add a from_owned to SpanText.

Since we need to store bith python string and rust strings now, the PyBackedString

There are more efficient representation of this, but we can try them after benchamrking the current changes

Description

Testing

Risks

Additional Notes

[cit-pr-commenter-54b7da]

Codeowners resolved as

Resolved from the full PR diff against main using the target branch CODEOWNERS file.
CODEOWNERS team requests not listed below are not required by the current file set.

src/native/py_string.rs                                                 @DataDog/apm-core-python

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🚦 108 Pipeline jobs failed

Build | build_wheels / Build cp311-win_arm64 — 🔧 Needs a code fix, caused by this PR

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Compilation error in py_string.rs:261: method from_owned is not a member of trait SpanText.

Build | build_wheels / Build cp312-win_arm64 — 🔧 Needs a code fix, caused by this PR

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Method 'from_owned' is not a member of trait 'SpanText' in py_string.rs:261:5

Build | build_wheels / Build cp313-win_arm64 — 🔧 Needs a code fix, caused by this PR

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Compilation error in py_string.rs:261:5: method from_owned is not a member of trait SpanText

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Branch: paullgdc/rust/fix_span_to_owned

Build | build_wheels / Build cp311-win_arm64
Commit: 84ee38084381717b3abe46399b8625f915283794
Error (code / build):
Compilation error in py_string.rs:261: method `from_owned` is not a member of trait `SpanText`.
CI job: https://github.com/DataDog/dd-trace-py/actions/runs/32834350652/job/97759885927

Build | build_wheels / Build cp312-win_arm64
Commit: 84ee38084381717b3abe46399b8625f915283794
Error (code / build):
Method 'from_owned' is not a member of trait 'SpanText' in py_string.rs:261:5
CI job: https://github.com/DataDog/dd-trace-py/actions/runs/32834350652/job/97759885755

Build | build_wheels / Build cp313-win_arm64
Commit: 84ee38084381717b3abe46399b8625f915283794
Error (code / build):
Compilation error in py_string.rs:261:5: method `from_owned` is not a member of trait `SpanText`
CI job: https://github.com/DataDog/dd-trace-py/actions/runs/32834350652/job/97759885732

Plus 1 more failing job not shown here.

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[cit-pr-commenter-54b7da]

Circular import analysis

⚠️ Existing circular imports

There are 3 circular imports that already exist on the base branch and have not been changed by this PR.

ddtrace.llmobs -> ddtrace.llmobs._evaluators -> ddtrace.llmobs._evaluators.format -> ddtrace.llmobs._experiment -> ddtrace.llmobs
ddtrace.errortracking._handled_exceptions.bytecode_injector -> ddtrace.errortracking._handled_exceptions.callbacks -> ddtrace.errortracking._handled_exceptions.collector -> ddtrace.errortracking._handled_exceptions.bytecode_reporting -> ddtrace.errortracking._handled_exceptions.bytecode_injector
ddtrace.appsec._asm_request_context -> ddtrace.appsec._iast._iast_request_context_base -> ddtrace.appsec._iast._iast_env -> ddtrace.appsec._iast.reporter -> ddtrace.appsec._exploit_prevention.stack_traces -> ddtrace.appsec._asm_request_context

[cit-pr-commenter-54b7da]

Dependency direction analysis

⚠️ Existing dependency direction violations

There are 250 dependency direction violations that already exist on the base branch and have not been changed by this PR.

Show existing violations (showing 5 of 250 highest severity)

ddtrace.internal.tracemethods -×-> ddtrace.trace  (internal-core -> product:tracing, score=135)
ddtrace.internal.ci_visibility.filters -×-> ddtrace.trace  (product:ci_visibility -> product:tracing, score=133)
ddtrace.llmobs._evaluators.runner -×-> ddtrace.trace  (product:llmobs -> product:tracing, score=133)
ddtrace.llmobs._integrations.openai -×-> ddtrace.trace  (product:llmobs -> product:tracing, score=133)
ddtrace.appsec._contrib.django -×-> ddtrace.trace  (product:appsec -> product:tracing, score=133)

To see all violations, download the layers-base.json and layers-pr.json artifacts from this CI job and run:

uv run --script scripts/import-analysis/layers.py compare layers-base.json layers-pr.json