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/usr/lib/swipl/library/modules.pl
All Application Manual Name SummaryHelp

  • swipl
    • library
      • error.pl
      • debug.pl -- Print debug messages and test assertions
      • apply.pl -- Apply predicates on a list
      • lists.pl -- List Manipulation
      • broadcast.pl -- Event service
      • predicate_options.pl -- Access and analyse predicate options
      • shlib.pl -- Utility library for loading foreign objects (DLLs, shared objects)
      • option.pl
      • thread_pool.pl
      • gensym.pl
      • settings.pl
      • arithmetic.pl
      • main.pl -- Provide entry point for scripts
      • readutil.pl -- Read utilities
      • operators.pl -- Manage operators
      • pairs.pl -- Operations on key-value lists
      • prolog_source.pl -- Examine Prolog source-files
      • quasi_quotations.pl -- Define Quasi Quotation syntax
      • url.pl -- Analysing and constructing URL
      • www_browser.pl -- Open a URL in the users browser
      • prolog_colour.pl
      • record.pl -- Access compound arguments by name
      • prolog_xref.pl -- Prolog cross-referencer data collection
      • occurs.pl -- Finding and counting sub-terms
      • ordsets.pl -- Ordered set manipulation
      • assoc.pl -- Binary associations
      • ugraphs.pl -- Graph manipulation library
      • iostream.pl -- Utilities to deal with streams
      • atom.pl -- Operations on atoms
      • prolog_pack.pl -- A package manager for Prolog
      • solution_sequences.pl -- Modify solution sequences
      • git.pl -- Run GIT commands
      • ctypes.pl -- Character code classification
      • utf8.pl -- UTF-8 encoding/decoding on lists of character codes.
      • base64.pl -- Base64 encoding and decoding
      • persistency.pl -- Provide persistent dynamic predicates
      • pure_input.pl -- Pure Input from files and streams
      • nb_set.pl -- Non-backtrackable sets
      • aggregate.pl -- Aggregation operators on backtrackable predicates
      • csv.pl -- Process CSV (Comma-Separated Values) data
      • dialect.pl -- Support multiple Prolog dialects
      • apply_macros.pl -- Goal expansion rules to avoid meta-calling
      • yall.pl -- Lambda expressions
      • prolog_code.pl -- Utilities for reasoning about code
      • dif.pl -- The dif/2 constraint
      • thread.pl -- High level thread primitives
      • rbtrees.pl -- Red black trees
      • nb_rbtrees.pl -- Non-backtrackable operations on red black trees
      • random.pl -- Random numbers
      • sandbox.pl -- Sandboxed Prolog code
      • prolog_format.pl -- Analyse format specifications
      • pprint.pl -- Pretty Print Prolog terms
      • modules.pl -- Module utility predicates
        • in_temporary_module/3
        • current_temporary_module/1
      • lazy_lists.pl -- Lazy list handling
      • edinburgh.pl -- Some traditional Edinburgh predicates
      • prolog_clause.pl -- Get detailed source-information about a clause
      • prolog_breakpoints.pl -- Manage Prolog break-points
      • dicts.pl -- Dict utilities
      • check.pl -- Consistency checking
      • ansi_term.pl -- Print decorated text to ANSI consoles
      • backcomp.pl -- Backward compatibility
      • writef.pl -- Old-style formatted write
      • charsio.pl -- I/O on Lists of Character Codes
      • sort.pl
      • base32.pl -- Base32 encoding and decoding
      • tables.pl -- XSB interface to tables
      • statistics.pl -- Get information about resource usage
      • varnumbers.pl -- Utilities for numbered terms
      • prolog_jiti.pl -- Just In Time Indexing (JITI) utilities
      • intercept.pl -- Intercept and signal interface
      • terms.pl -- Term manipulation
      • quintus.pl -- Quintus compatibility
      • codesio.pl -- I/O on Lists of Character Codes
      • prolog_debug.pl -- User level debugging tools
      • listing.pl -- List programs and pretty print clauses
      • make.pl -- Reload modified source files
      • increval.pl -- Incremental dynamic predicate modification
      • strings.pl -- String utilities
      • date.pl -- Process dates and times
      • help.pl -- Text based manual
      • prolog_wrap.pl -- Wrapping predicates
      • rwlocks.pl -- Read/write locks
      • shell.pl -- Elementary shell commands
      • explain.pl -- Describe Prolog Terms
      • threadutil.pl -- Interactive thread utilities
      • prolog_versions.pl -- Demand specific (Prolog) versions
      • wfs.pl -- Well Founded Semantics interface
      • optparse.pl -- command line parsing
      • prolog_profile.pl -- Execution profiler
      • qsave.pl -- Save current program as a state or executable
      • zip.pl -- Access resource ZIP archives
      • heaps.pl -- heaps/priority queues
      • prolog_history.pl -- Per-directory persistent commandline history
      • when.pl -- Conditional coroutining
      • prolog_trace.pl -- Print access to predicates
      • edit.pl -- Editor interface
      • prolog_stack.pl -- Examine the Prolog stack
      • prolog_codewalk.pl -- Prolog code walker
      • prolog_metainference.pl -- Infer meta-predicate properties
      • prolog_coverage.pl -- Coverage analysis tool
      • macros.pl -- Macro expansion
      • exceptions.pl -- Exception classification
      • oset.pl -- Ordered set manipulation
      • hashtable.pl -- Hash tables
      • coinduction.pl -- Co-Logic Programming
      • system.pl -- System utilities
      • prolog_autoload.pl -- Autoload all dependencies
      • prolog_config.pl -- Provide configuration information
      • portray_text.pl -- Portray text
      • win_menu.pl -- Console window menu
      • tty.pl -- Terminal operations
      • fastrw.pl -- Fast reading and writing of terms
      • files.pl
      • streams.pl -- Manage Prolog streams
 in_temporary_module(?Module, :Setup, :Goal)
Run Goal on temporary loaded sources and discard the module and loaded predicates after completion. This predicate performs the following steps:
  1. If Module is unbound, create a unique identifier for it.
  2. Turn Module into a temporary module using set_module/1. Note that this requires the module to be non-existent or empty. If Module is specified, it should typically be set to a unique value as obtained from e.g. uuid/1.
  3. Run Setup in the context of Module.
  4. If setup succeeded possible choice points are discarded and Goal is started.

The logical result of this predicate is the same as `(Setup@Module -> Goal@Module)`, i.e., both Setup and Goal are resolved relative to the current module, but executed in the context of Module. If Goal must be called in Module, use call(Goal).

The module and all its predicates are destroyed after Goal terminates, as defined by setup_call_cleanup/3.

Discussion This predicate is intended to load programs in an isolated environment and reclaim all resources. This unfortunately is incomplete:

  • Running the code may leave side effects such as creating records, flags, changing Prolog flags, etc. The system has no provisions to track this.
  • So called functors (name/arity pairs) are not yet subject to garbage collection. Functors are both used to define predicates and to create compound terms.
See also
- library(sandbox) determines whether unknown goals are safe to call.
- load_files/2 offers the option sandboxed(true) to load code from unknown sources safely.
ClioPatria (version V3.1.1-51-ga0b30a5)