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⚡️ Speed up function _extract_child_components by 68% in PR #1571 (codeflash/optimize-pr1561-2026-02-20T03.56.09) #1574

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⚡️ Speed up function _extract_child_components by 68% in PR #1571 (codeflash/optimize-pr1561-2026-02-20T03.56.09) #1574

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11 changes: 5 additions & 6 deletions codeflash/languages/javascript/frameworks/react/context.py
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,8 @@
from codeflash.languages.javascript.frameworks.react.discovery import ReactComponentInfo
from codeflash.languages.javascript.treesitter import TreeSitterAnalyzer

_BUILT_IN_COMPONENTS = frozenset(("React.Fragment", "Fragment", "Suspense", "React.Suspense"))

_HOOK_PATTERN = re.compile(r"\b(use[A-Z]\w*)\s*(?:<[^>]*>)?\s*\(")

_JSX_COMPONENT_RE = re.compile(r"<([A-Z][a-zA-Z0-9.]*)")
Expand Down Expand Up @@ -163,12 +165,9 @@ def _extract_hook_usages(component_source: str) -> list[HookUsage]:

def _extract_child_components(component_source: str, analyzer: TreeSitterAnalyzer, full_source: str) -> list[str]:
"""Find child component names rendered in JSX."""
children = set()
for match in _JSX_COMPONENT_RE.finditer(component_source):
name = match.group(1)
# Skip React built-ins like React.Fragment
if name not in ("React.Fragment", "Fragment", "Suspense", "React.Suspense"):
children.add(name)
names = _JSX_COMPONENT_RE.findall(component_source)
# Skip React built-ins like React.Fragment
children = {name for name in names if name not in _BUILT_IN_COMPONENTS}
return sorted(children)


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