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gh-133351: Fix remote PDB's multi-line block tab completion (#133387)

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Matt Wozniski 2025-05-04 15:20:28 -04:00 • committed by GitHub
parent 61b50a98b4
commit d8c118f50d
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3 changed files with 51 additions and 3 deletions
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13
Lib/pdb.py
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@ -2933,6 +2933,7 @@ class _PdbClient:
self.completion_matches = []
self.state = "dumb"
self.write_failed = False
self.multiline_block = False
def _ensure_valid_message(self, msg):
# Ensure the message conforms to our protocol.
@ -2979,6 +2980,7 @@ class _PdbClient:
self.write_failed = True
def read_command(self, prompt):
self.multiline_block = False
reply = input(prompt)
if self.state == "dumb":
@ -3003,6 +3005,7 @@ class _PdbClient:
return prefix + reply
# Otherwise, valid first line of a multi-line statement
self.multiline_block = True
continue_prompt = "...".ljust(len(prompt))
while codeop.compile_command(reply, "<stdin>", "single") is None:
reply += "\n" + input(continue_prompt)
@ -3105,9 +3108,13 @@ class _PdbClient:
origline = readline.get_line_buffer()
line = origline.lstrip()
stripped = len(origline) - len(line)
begidx = readline.get_begidx() - stripped
endidx = readline.get_endidx() - stripped
if self.multiline_block:
# We're completing a line contained in a multi-line block.
# Force the remote to treat it as a Python expression.
line = "! " + line
offset = len(origline) - len(line)
begidx = readline.get_begidx() - offset
endidx = readline.get_endidx() - offset
msg = {
"complete": {