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Prevent overwriting local functions by another with the same name defined in a stored template.

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This commit is contained in:
Charles Haley 2022-04-01 15:14:33 +01:00
parent 95215eded1
commit 6f22d674b4
1 changed files with 8 additions and 3 deletions
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11
src/calibre/utils/formatter.py
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@ -493,7 +493,9 @@ class _Parser:
line_number = self.line_number
if not self.token_is_id():
self.error(_("'{0}' statement: expected a function name identifier").format('def'))
variable = self.token()
function_name = self.token()
if function_name in self.local_functions:
self.error(_("Function name '{0}' is already defined").format(function_name))
if not self.token_op_is('('):
self.error(_("'{0}' statement: expected a '('").format('def'))
self.consume()
@ -519,8 +521,8 @@ class _Parser:
if not self.token_is('fed'):
self.error(_("'{0}' statement: missing the closing '{1}'").format('def', 'fed'))
self.consume()
self.local_functions.add(variable)
return LocalFunctionDefineNode(line_number, variable, arguments, block)
self.local_functions.add(function_name)
return LocalFunctionDefineNode(line_number, function_name, arguments, block)
def local_call_expression(self, name, arguments):
return LocalFunctionCallNode(self.line_number, name, arguments)
@ -895,7 +897,9 @@ class _Interpreter:
# evaluate the expression (recursive call)
args.append(self.expr(arg))
saved_locals = self.locals
saved_local_functions = self.local_functions
self.locals = {}
self.local_functions = {}
for dex, v in enumerate(args):
self.locals['*arg_'+ str(dex)] = v
if (self.break_reporter):
@ -911,6 +915,7 @@ class _Interpreter:
val = e.get_value()
self.override_line_number = saved_line_number
self.locals = saved_locals
self.local_functions = saved_local_functions
if (self.break_reporter):
self.break_reporter(prog.node_name + _(' returned value'), val, prog.line_number)
return val