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⚡️ Speed up method JavaLineProfiler.instrument_function by 26% in PR #1543 (fix/java/line-profiler) #1659

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Merged
HeshamHM28 merged 1 commit into from
Feb 25, 2026
Merged

⚡️ Speed up method JavaLineProfiler.instrument_function by 26% in PR #1543 (fix/java/line-profiler) #1659

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12 changes: 5 additions & 7 deletions codeflash/languages/java/line_profiler.py
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Original file line number Diff line number Diff line change
Expand Up @@ -353,6 +353,8 @@ def instrument_function(self, func: FunctionInfo, lines: list[str], file_path: P
# Add profiling to each executable line
function_entry_added = False

file_posix = file_path.as_posix()

for local_idx, line in enumerate(func_lines):
local_line_num = local_idx + 1 # 1-indexed within function
global_line_num = func.starting_line + local_idx # Global line number
Expand All @@ -377,23 +379,19 @@ def instrument_function(self, func: FunctionInfo, lines: list[str], file_path: P
if (
local_line_num in executable_lines
and stripped
and not stripped.startswith("//")
and not stripped.startswith("/*")
and not stripped.startswith("*")
and not stripped.startswith(("//", "/*", "*"))
and stripped not in ("}", "};")
):
# Get indentation
indent = len(line) - len(line.lstrip())
indent_str = " " * indent

# Store line content for profiler output
content_key = f"{file_path.as_posix()}:{global_line_num}"
content_key = f"{file_posix}:{global_line_num}"
self.line_contents[content_key] = stripped

# Add hit() call before the line
profiled_line = (
f'{indent_str}{self.profiler_class}.hit("{file_path.as_posix()}", {global_line_num});\n{line}'
)
profiled_line = f'{indent_str}{self.profiler_class}.hit("{file_posix}", {global_line_num});\n{line}'
instrumented_lines.append(profiled_line)
else:
instrumented_lines.append(line)
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