CBMC
fresh_symbol.cpp
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1 /*******************************************************************\
2 
3 Module: Fresh auxiliary symbol creation
4 
5 Author: Chris Smowton, chris.smowton@diffblue.com
6 
7 \*******************************************************************/
8 
11 
12 #include "fresh_symbol.h"
13 
14 #include "invariant.h"
15 #include "namespace.h"
16 #include "rename.h"
17 #include "symbol.h"
18 #include "symbol_table_base.h"
19 
33  const typet &type,
34  const std::string &name_prefix,
35  const std::string &basename_prefix,
36  const source_locationt &source_location,
37  const irep_idt &symbol_mode,
38  const namespacet &ns,
39  symbol_table_baset &symbol_table)
40 {
41  irep_idt identifier = basename_prefix;
42  std::size_t prefix_size = 0;
43  if(!name_prefix.empty())
44  {
45  identifier = name_prefix + "::" + basename_prefix;
46  prefix_size = name_prefix.size() + 2;
47  }
48  identifier = get_new_name(identifier, ns, '$');
49  std::string basename = id2string(identifier).substr(prefix_size);
50 
51  auxiliary_symbolt new_symbol(identifier, type, symbol_mode);
52  new_symbol.base_name = basename;
53  new_symbol.location = source_location;
54  std::pair<symbolt &, bool> res = symbol_table.insert(std::move(new_symbol));
55  CHECK_RETURN(res.second);
56 
57  return res.first;
58 }
59 
72  const typet &type,
73  const std::string &name_prefix,
74  const std::string &basename_prefix,
75  const source_locationt &source_location,
76  const irep_idt &symbol_mode,
77  symbol_table_baset &symbol_table)
78 {
79  return get_fresh_aux_symbol(
80  type,
81  name_prefix,
82  basename_prefix,
83  source_location,
84  symbol_mode,
85  namespacet(symbol_table),
86  symbol_table);
87 }
Internally generated symbol table entryThis is a symbol generated as part of translation to or modifi...
Definition: symbol.h:153
dstringt has one field, an unsigned integer no which is an index into a static table of strings.
Definition: dstring.h:38
size_t size() const
Definition: dstring.h:121
A namespacet is essentially one or two symbol tables bound together, to allow for symbol lookups in t...
Definition: namespace.h:94
The symbol table base class interface.
virtual std::pair< symbolt &, bool > insert(symbolt symbol)=0
Move or copy a new symbol to the symbol table.
Symbol table entry.
Definition: symbol.h:28
irep_idt base_name
Base (non-scoped) name.
Definition: symbol.h:46
source_locationt location
Source code location of definition of symbol.
Definition: symbol.h:37
The type of an expression, extends irept.
Definition: type.h:29
symbolt & get_fresh_aux_symbol(const typet &type, const std::string &name_prefix, const std::string &basename_prefix, const source_locationt &source_location, const irep_idt &symbol_mode, const namespacet &ns, symbol_table_baset &symbol_table)
Installs a fresh-named symbol with respect to the given namespace ns with the requested name pattern ...
Fresh auxiliary symbol creation.
const std::string & id2string(const irep_idt &d)
Definition: irep.h:44
irep_idt get_new_name(const irep_idt &name, const namespacet &ns, char delimiter)
Build and identifier not yet present in the namespace ns based on name.
Definition: rename.cpp:16
#define CHECK_RETURN(CONDITION)
Definition: invariant.h:495
Symbol table entry.
Author: Diffblue Ltd.