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Micro-optimisation

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Avoid some unnecessary lambdas
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Kovid Goyal 2026-02-13 13:03:18 +05:30
parent bb04635526
commit 38b7b4a9ab
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 9 additions and 18 deletions
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27
src/calibre/utils/formatter.py
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@ -751,22 +751,16 @@ class _Parser:
lambda ln, args: RawFieldNode(ln, *args)),
'test': (lambda args: len(args) == 3,
lambda ln, args: IfNode(ln, args[0], (args[1],), (args[2],))),
'first_non_empty': (lambda args: len(args) >= 1,
lambda ln, args: FirstNonEmptyNode(ln, args)),
'switch': (lambda args: len(args) >= 3 and (len(args) %2) == 0,
lambda ln, args: SwitchNode(ln, args)),
'switch_if': (lambda args: len(args) > 0 and (len(args) %2) == 1,
lambda ln, args: SwitchIfNode(ln, args)),
'first_non_empty': (lambda args: len(args) >= 1, FirstNonEmptyNode),
'switch': (lambda args: len(args) >= 3 and (len(args) %2) == 0, SwitchNode),
'switch_if': (lambda args: len(args) > 0 and (len(args) %2) == 1, SwitchIfNode),
'assign': (lambda args: len(args) == 2 and len(args[0]) == 1 and args[0][0].node_type == Node.NODE_RVALUE,
lambda ln, args: AssignNode(ln, args[0][0].name, args[1])),
'contains': (lambda args: len(args) == 4,
lambda ln, args: ContainsNode(ln, args)),
'contains': (lambda args: len(args) == 4, ContainsNode),
'character': (lambda args: len(args) == 1,
lambda ln, args: CharacterNode(ln, args[0])),
'print': (lambda _: True,
lambda ln, args: PrintNode(ln, args)),
'strcat': (lambda _: True,
lambda ln, args: StrcatNode(ln, args)),
'print': (lambda _: True, PrintNode),
'strcat': (lambda _: True, StrcatNode),
'list_count_field': (lambda args: len(args) == 1,
lambda ln, args: ListCountFieldNode(ln, args[0])),
'f_string': (lambda args: len(args) == 1,
@ -1055,8 +1049,7 @@ class _Interpreter:
def call_break_reporter(self, txt, val, line_number):
self.real_break_reporter(txt, val, self.locals,
self.override_line_number if self.override_line_number
else line_number)
self.override_line_number or line_number)
def expression_list(self, prog):
val = ''
@ -1230,8 +1223,7 @@ class _Interpreter:
if (self.break_reporter):
self.break_reporter(prog.node_name, _('after evaluating arguments'), prog.line_number)
saved_line_number = self.override_line_number
self.override_line_number = (self.override_line_number if self.override_line_number
else prog.line_number)
self.override_line_number = (self.override_line_number or prog.line_number)
else:
saved_line_number = None
try:
@ -1275,8 +1267,7 @@ class _Interpreter:
if (self.break_reporter):
self.break_reporter(prog.node_name, _('after evaluating arguments'), prog.line_number)
saved_line_number = self.override_line_number
self.override_line_number = (self.override_line_number if self.override_line_number
else line_number)
self.override_line_number = (self.override_line_number or line_number)
else:
saved_line_number = None
try: