src/Pure/context.ML
2014-02-17 wenzelm 2014-02-17 subtle change of semantics of Thm.eq_thm, e.g. relevant for merge of src/HOL/Tools/Predicate_Compile/core_data.ML (cf. HOL-IMP);
2013-07-30 wenzelm 2013-07-30 type theory is purely value-oriented;
2013-07-18 wenzelm 2013-07-18 immutable theory values with full stamp record of every update (increase of stamp size for HOL: 20000 -> 100000, JinjaThreads: 65000 -> 300000) -- minimal measurable impact on inference kernel performance;
2013-07-17 wenzelm 2013-07-17 tuned;
2013-04-10 wenzelm 2013-04-10 added ML antiquotation @{theory_context};
2013-03-07 wenzelm 2013-03-07 tuned signature -- prefer terminology of Scala and Axiom;
2012-12-08 wenzelm 2012-12-08 check consistent theory names for direct imports as well -- as claimed in the comments (see also 1cc36c0ec9eb);
2012-08-29 wenzelm 2012-08-29 renamed Position.str_of to Position.here;
2012-08-01 wenzelm 2012-08-01 more standard bootstrapping of Pure.thy;
2012-03-18 wenzelm 2012-03-18 maintain generic context naming in structure Name_Space (NB: empty = default_naming, init = local_naming); more explicit Context.generic for Name_Space.declare/define and derivatives (NB: naming changed after Proof_Context.init_global); prefer Context.pretty in low-level operations of structure Sorts/Type (defer full Syntax.init_pretty until error output); simplified signatures;
2011-07-06 wenzelm 2011-07-06 prefer Synchronized.var;
2011-06-30 wenzelm 2011-06-30 back to sequential merge_data, reverting 741373421318 (NB: expensive Parser.merge_gram is already asynchronous since 3daff3cc2214);
2011-05-15 wenzelm 2011-05-15 timing of Theory_Data operations, with implicit thread positions when functor is applied;
2011-04-18 wenzelm 2011-04-18 simplified pretty printing context, which is only required for certain kernel operations; disentangled dependencies of structure Pretty;
2011-04-16 wenzelm 2011-04-16 modernized structure Proof_Context;
2011-02-05 wenzelm 2011-02-05 more tracing information via Par_List.map_name;
2010-09-01 haftmann 2010-09-01 replaced Table.map' by Table.map
2010-07-21 wenzelm 2010-07-21 replaced Thy_Info.the_theory by Context.this_theory -- avoid referring to accidental theory loader state;
2010-07-21 wenzelm 2010-07-21 added Context.get_theory -- avoid referring to accidental theory loader state (cf. Thy_Info.get_theory);
2010-07-20 wenzelm 2010-07-20 eliminated old-style sys_error/SYS_ERROR in favour of exception Fail -- after careful checking that there is no overlap with existing handling of that; tuned some error messages;
2010-05-31 wenzelm 2010-05-31 modernized some structure names, keeping a few legacy aliases;
2010-05-03 wenzelm 2010-05-03 renamed ProofContext.init to ProofContext.init_global to emphasize that this is not the real thing;
2010-01-04 wenzelm 2010-01-04 discontinued old TheoryDataFun, but retain Theory_Data_PP with is Pretty.pp argument to merge (still required in exotic situations -- hard to get rid of);
2010-01-04 wenzelm 2010-01-04 removed further remains of mutable theory data (cf. 25bd3ed2ac9f);
2010-01-04 haftmann 2010-01-04 dropped copy operation for legacy TheoryDataFun
2009-11-11 wenzelm 2009-11-11 local mutex for theory content/identity operations;
2009-11-08 wenzelm 2009-11-08 modernized/simplified functor Theory_Data, Proof_Data, Generic_Data: eliminated Pretty.pp, discontinued mutable data;
2009-10-20 wenzelm 2009-10-20 tuned;
2009-10-20 wenzelm 2009-10-20 backpatching of structure Proof and ProofContext -- avoid odd aliases; renamed transfer_proof to raw_transfer; indicate firm naming conventions for theory, Proof.context, Context.generic;
2009-09-30 wenzelm 2009-09-30 eliminated redundant bindings;
2009-09-29 wenzelm 2009-09-29 explicit indication of Unsynchronized.ref;
2009-07-09 wenzelm 2009-07-09 renamed functor TableFun to Table, and GraphFun to Graph;
2009-03-21 wenzelm 2009-03-21 removed obsolete pprint operations; some explicit pp operations for toplevel pretty printing;
2009-01-06 wenzelm 2009-01-06 renamed structure ParList to Par_List;
2009-01-06 wenzelm 2009-01-06 parallelized merge_data;
2008-12-13 wenzelm 2008-12-13 tuned comments; tuned;
2008-12-13 wenzelm 2008-12-13 refined identity and ancestry: explicit draft flat, ids are unnamed, name consistency is checked for ancestry; tuned history: renamed version to stage, disallow checkpoint/finish_thy on finished theories; added display_names -- user-level presentation; removed obsolete exists_name, names_of; tuned;
2008-12-11 wenzelm 2008-12-11 unified ids for ancestors and checkpoints, removed obsolete history of checkpoints; tuned representation of internal node names -- avoid string copies; tuned signature;
2008-12-06 wenzelm 2008-12-06 finish_thy: to not collapse checkpoints -- allows future proofs to be deferred indefinitely (performance tradeoff: 5-15% slowdown in sequential batch jobs);
2008-10-16 wenzelm 2008-10-16 tuned;
2008-09-26 wenzelm 2008-09-26 eliminated polymorphic equality;
2008-09-22 wenzelm 2008-09-22 added reject_draft;
2008-09-04 wenzelm 2008-09-04 Thread.getLocal/setLocal;
2008-06-24 wenzelm 2008-06-24 added pprint_thy_ref;
2008-05-18 wenzelm 2008-05-18 eliminated theory CPure;
2008-05-14 wenzelm 2008-05-14 names_of: exclude intermediate ids -- less verbosity;
2008-04-10 wenzelm 2008-04-10 export is_draft, not draftN;
2008-03-29 wenzelm 2008-03-29 added map_theory_result, map_proof_result;
2008-03-28 wenzelm 2008-03-28 Context.>> : operate on Context.generic;
2008-03-27 wenzelm 2008-03-27 eliminated delayed theory setup
2008-03-27 wenzelm 2008-03-27 eliminated theory ProtoPure; implicit setup of emerging theory Pure; added >>> operator;
2008-03-27 wenzelm 2008-03-27 nonfix >>;
2008-03-26 wenzelm 2008-03-26 added thread data (formerly global ref in ML/ml_context.ML); renamed ML_Context.>> to Context.>> (again);
2007-09-08 wenzelm 2007-09-08 removed thy_ord (erratic due to multi-threading);
2007-08-20 wenzelm 2007-08-20 tuned CRITICAL sections;
2007-08-08 wenzelm 2007-08-08 thread-safeness: when creating certified items, perform Theory.check_thy *last*; tuned datatype proof;
2007-08-03 wenzelm 2007-08-03 improved check_thy: produce a checked theory_ref (thread-safe version); removed obsolete self_ref (cf. check_thy); thread-safeness: when creating certified items, perform Theory.check_thy *last*; eq_thy: no check here; marked some critical sections;
2007-07-23 wenzelm 2007-07-23 marked some CRITICAL sections;
2007-07-05 wenzelm 2007-07-05 the_theory/proof: error instead of exception Fail;
2007-06-13 wenzelm 2007-06-13 merge/merge_refs: plain error instead of exception TERM;