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Better discovery of type class instances from recursive definitions
author Adam Chlipala <adam@chlipala.net>
date Wed, 02 May 2012 08:34:50 -0400
parents d29d39d93820
children 7afe63952fe6
rev   line source
adam@1705 1 ========
adam@1705 2 20120329
adam@1705 3 ========
adam@1705 4
adam@1705 5 - New JavaScript FFI function: setInnerHTML
adam@1705 6 - Bug fixes
adam@1705 7 - Documentation improvements
adam@1705 8
adam@1693 9 ========
adam@1693 10 20120310
adam@1693 11 ========
adam@1693 12
adam@1693 13 - 'ORDER BY RANDOM'
adam@1693 14 - New Basis members: diffInMilliseconds, toMilliseconds
adam@1693 15 - <radio> widget now returns 'option string' instead of 'string'
adam@1693 16 - '-dumpSource' command-line flag
adam@1693 17 - Bug fixes and optimization improvements
adam@1693 18
adam@1669 19 ========
adam@1669 20 20120110
adam@1669 21 ========
adam@1669 22
adam@1669 23 - Improvements to type inference and error messages
adam@1669 24 - New 'dynClass' pseudo-attribute for most HTML tags
adam@1669 25 - New 't.*' notation for selecting all columns of a table
adam@1669 26 - New SQL functions: 'lower' and 'upper'
adam@1669 27 - 'timeFormat' .urp directive
adam@1669 28 - Client-side 'debug' and 'naughtyDebug' calls use a browser debug console, if available
adam@1669 29 - Allow 'source' values to be returned by RPCs
adam@1669 30 - Change the HTML context classification scheme in 'Basis'
adam@1669 31 - Rename 'Top.id' to 'ident' to avoid clash with 'Basis.id'
adam@1669 32 - More client-side function implementations
adam@1669 33 - Some expanded reference manual sections
adam@1669 34 - Tweak to linker command line argument order (to prevent issues with new Ubuntu versions)
adam@1669 35 - Bug fixes
adam@1669 36
adam@1616 37 ========
adam@1616 38 20111127
adam@1616 39 ========
adam@1616 40
adam@1616 41 - Improvements to type inference and error messages
adam@1616 42 - New Basis members: ceil, float, null, round, trunc
adam@1616 43 - New SQL expression forms: 'IF..THEN..ELSE', 'COALESCE', and 'LIKE'
adam@1616 44 - Support for the full set of HTML character entities
adam@1616 45 - Client-side versions of some time-related functions
adam@1616 46 - New URWEB_PG_CON environment variable
adam@1616 47 - Allow arguments for 'con' signature items, not just declarations
adam@1616 48 - Bug fixes and performance improvements
adam@1616 49 - Tweaks for idiosyncrasies of OS X (like deprecated OpenSSL)
adam@1616 50
adam@1509 51 ========
adam@1561 52 20110917
adam@1509 53 ========
adam@1509 54
adam@1509 55 - Start of official tutorial
adam@1509 56 - Compiler support for generating nice tutorial HTML from literate source files
adam@1509 57 - New protocol 'static' for generating static pages
adam@1561 58 - Replace GCCARGS 'configure' variable with CCARGS
adam@1561 59 - Better support for compilation with Clang (including on OS X)
adam@1561 60 - Fancier 'configure' script with versioning
adam@1523 61 - Applications consult URWEB_STACK_SIZE environment variable to determine thread
adam@1523 62 stack size
adam@1561 63 - HTML tag IDs now drawn from an abstract type
adam@1561 64 - New Basis functions: diffInSeconds, mkMonad, onClick, onDblclick, onKeydown,
adam@1561 65 onKeypress, onKeyup, onMousedown, onMouseup, preventDefault, stopPropagation,
adam@1561 66 toSeconds
adam@1561 67 - Add <image> tag
adam@1561 68 - Add 'target' attribute for <a>
adam@1561 69 - New compiler command-line option: -dumpTypes
adam@1561 70 - New syntactic sugar for computed ORDER BY clauses
adam@1561 71 - Bug fixes and optimization improvements
adam@1509 72
adam@1492 73 ========
adam@1492 74 20110715
adam@1492 75 ========
adam@1492 76
adam@1492 77 - Treat local variables the same as module-level variables, for the purpose of
adam@1492 78 implicit argument insertion
adam@1492 79 - New 'noXsrfProtection' directive for .urp files
adam@1492 80 - Non-debug builds omit source location information in error messages shown to
adam@1492 81 the user (but keep that information in log entries)
adam@1492 82 - Basis.getHeader and Basis.setHeader
adam@1492 83 - Basis.show_css_class
adam@1492 84 - Basis.currentUrlHasQueryString
adam@1492 85 - Make Basis.rand cryptographically secure
adam@1492 86 - Client-side versions of Basis.now and Basis.show_time
adam@1492 87 - Bug fixes
adam@1492 88 - Improvements to auto-configuration and build process (now builds with LLVM's
adam@1492 89 Clang!)
adam@1492 90 - Clarifications in the manual
adam@1492 91
adam@1458 92 ========
adam@1460 93 20110517
adam@1458 94 ========
adam@1458 95
adam@1458 96 - Cygwin compatibility
adam@1458 97 - Compatibility with Gentoo packaging process, including a .ebuild file
adam@1458 98 - Change typing of SQL subqueries, to indicate that they may always return NULL
adam@1458 99 (for no rows)
adam@1458 100 - Syntactic sugar for GROUP BY with variable numbers of columns
adam@1458 101 (using 'tab.{{c}}', where 'c :: {Type}')
adam@1458 102 - 'ALL' for SQL relational operators
adam@1458 103 - Add nullable types to the class for valid operands for SQL arithmetic
adam@1458 104 - 'alt' attribute for <img>
adam@1458 105 - <sup> and <sub> HTML tags
adam@1458 106 - Allow 'debug' and 'naughtyDebug' in client-side code, implemented with 'alert'
adam@1458 107 - Bug fixes and optimization improvements
adam@1458 108
adam@1400 109 ========
adam@1414 110 20110123
adam@1400 111 ========
adam@1400 112
adam@1400 113 - Changes to encoding of SQL aggregate functions: nullable types may be
adam@1400 114 aggregated, and non-COUNT aggregates return nullable results.
adam@1400 115 - SQL subqueries may apply aggregate functions to columns bound in enclosing
adam@1400 116 queries.
adam@1400 117 - Switch from libmhash to OpenSSL.
adam@1400 118 - 'cdataChar', for injecting arbitrary character codes into XML
adam@1400 119 - 'crypt', for access to the standard UNIX password encryption routine
adam@1400 120 - 'readUtc', for parsing time strings in the UTC time zone
adam@1400 121 - Built-in 'time' type now stores microseconds (which for now are only used in
adam@1400 122 connection with Postgres timestamps).
adam@1400 123 - Client-side URL blessing and redirection
adam@1400 124 - 'currentUrlHasPost' function
adam@1400 125 - Transactional 'free' functions now passed an argument indicating whether the
adam@1400 126 runtime system expects to retry the transaction.
adam@1400 127 - Change tasks to allow task kind-specific inputs
adam@1400 128 - Add 'clientLeaves' and 'periodic' task kinds
adam@1400 129 - Support for externally-callable pages, via the 'postBody' and 'queryString'
adam@1400 130 types and the 'effectfulUrl' function
adam@1400 131 - 'minHeap' and 'alwaysInline' .urp options
adam@1400 132 - '-prefix' command-line option
adam@1400 133 - Comments in .urp files (lines starting with '#')
adam@1400 134 - Miscellaneous additions to the standard library
adam@1400 135 - Bug fixes and improvements to type inference and optimization
adam@1400 136
adam@1287 137 ========
adam@1315 138 20101102
adam@1287 139 ========
adam@1287 140
adam@1287 141 - Polymorphic variants (see Basis.variant)
adam@1297 142 - New 'onError' directive for .urp files
adam@1287 143 - (* *) and <!-- --> comments in XML
adam@1297 144 - Basis.classes, Basis.confirm, and Basis.tryDml
adam@1309 145 - New notations ::_ and :::_, for constructor parameters of unknown kind
adam@1297 146 - Invocations like 'urweb foo' will compile foo.ur as a single-file project,
adam@1297 147 even if no foo.urp exists
adam@1309 148 - '-limit' command-line flag and 'limit' .urp directive
adam@1297 149 - Bug fixes and optimization improvements
adam@1287 150
adamc@1259 151 ========
adamc@1273 152 20100603
adamc@1259 153 ========
adamc@1259 154
adamc@1259 155 - Changed URL escaping convention, to avoid confusing proxies.
adamc@1259 156 The new convention is like the normal one, but with '.' instead of '%'.
adamc@1261 157 - Changed JavaScript compilation of recursive functions to use thunks.
adamc@1261 158 This change avoids most costs of functions not referenced on particular
adamc@1261 159 pages, reducing loading time dramatically.
adamc@1273 160 - Support HTTP caching of application-specific JavaScript code
adamc@1273 161 - Bug fixes
adamc@1259 162
adamc@1255 163 ========
adamc@1255 164 20100506
adamc@1255 165 ========
adamc@1255 166
adamc@1255 167 - New experimental checker for information flow and access control policies
adamc@1255 168 (See demo at http://www.impredicative.com/ur/scdv/)
adamc@1255 169
adamc@1197 170 ========
adamc@1197 171 20100401
adamc@1197 172 ========
adamc@1197 173
adamc@1197 174 - Subquery expressions and FROM items
adamc@1197 175 - Low-level support for SELECT with no FROM clause
adamc@1197 176 - Fixes for DBMS-portability of relational operators
adamc@1197 177
adamc@1183 178 ========
adamc@1190 179 20100325
adamc@1183 180 ========
adamc@1183 181
adamc@1188 182 - -verbose flag
adamc@1188 183 - COUNT(col) SQL aggregate function
adamc@1188 184 - 'benignEffectful' and 'safeGet' .urp commands
adamc@1188 185 - Remove Basis.getRequestHeader, since it can be used to circumvent cookie
adamc@1188 186 security
adamc@1190 187 - Rename Top.foldR*X to map*X
adamc@1188 188 - Bug fixes and optimization improvements
adamc@1183 189
adamc@1166 190 ========
adamc@1166 191 20100213
adamc@1166 192 ========
adamc@1166 193
adamc@1166 194 - Improvements to 'configure'; should now fail if any uncommon but required
adamc@1166 195 package is missing
adamc@1166 196 - Other fixes to configuration, build system, and C code portability
adamc@1166 197 - sigfile .urp directive & -sigfile command-line option
adamc@1166 198 - .urp files with no directives no longer need to begin with blank lines.
adamc@1166 199 - Other bug fixes
adamc@1166 200
adamc@1137 201 ========
adamc@1137 202 20100130
adamc@1137 203 ========
adamc@1137 204
adamc@1137 205 - Conversion to an Automake-based build system, for greater portability in
adamc@1137 206 building shared libraries
adamc@1137 207 - -path and -root command-line flags
adamc@1137 208 - Exported page handling functions (i.e., those page-generating functions
adamc@1137 209 appearing in the main module's signature) may now take any number of
adamc@1137 210 arguments, including 0.
adamc@1137 211
adamc@1123 212 ========
adamc@1123 213 20100112
adamc@1123 214 ========
adamc@1123 215
adamc@1123 216 - Basis.serialized type family, for storing more types in the database
adamc@1123 217 - Basis.textBlob, for building blobs from strings
adamc@1123 218 - Basis.debug function, for server-side debug printing
adamc@1123 219 - Bug fixes & optimization improvements
adamc@1123 220
adamc@1065 221 ========
adamc@1103 222 20091230
adamc@1065 223 ========
adamc@1065 224
adamc@1093 225 - Automatic insertion of implicit arguments in more positions
adamc@1065 226 - Reifying expressions as URLs and redirecting to them explicitly
adamc@1070 227 - More syntactic sugar for SQL
adamc@1070 228 - Typing of SQL queries no longer exposes which tables were used in joins but
adamc@1070 229 had none of their fields projected
adamc@1075 230 - Tasks
adamc@1095 231 - Dynamic linking of the runtime system
adamc@1077 232 - Optimization improvements
adamc@1103 233 - Bug fixes
adamc@1065 234
adamc@1050 235 ========
adamc@1056 236 20091203
adamc@1050 237 ========
adamc@1050 238
adamc@1050 239 - Extended cookie interface (breaks backward compatibility for 'setCookie')
adamc@1050 240 - Bug fixes
adamc@1056 241 - Extended UTF-8 characters in HTML
adamc@1050 242
adamc@1043 243 ========
adamc@1043 244 20091124
adamc@1043 245 ========
adamc@1043 246
adamc@1043 247 - Improved Internet Explorer compatibility
adamc@1043 248
adamc@1020 249 ========
adamc@1033 250 20091108
adamc@1020 251 ========
adamc@1020 252
adamc@1020 253 - Bug fixes
adamc@1020 254 - Optimization improvements
adamc@1021 255 - Removed a restriction that prevented some RPCs and calls to sleep or recv
adamc@1021 256 from compiling
adamc@1020 257
adamc@999 258 ========
adamc@999 259 20091012
adamc@999 260 ========
adamc@999 261
adamc@999 262 - Small bug fixes affecting MySQL and SQLite
adamc@999 263
adamc@988 264 ========
adamc@997 265 20091009
adamc@988 266 ========
adamc@988 267
adamc@988 268 - Bug fixes
adamc@988 269 - Improvement to choice of line number to cite in record unification error
adamc@988 270 messages
adamc@994 271 - SELECT DISTINCT
adamc@996 272 - New extra demos: orm1 and versioned1
adamc@988 273
adamc@985 274 ========
adamc@985 275 20090926
adamc@985 276 ========
adamc@985 277
adamc@985 278 - Reimplemented client-side code generation to use an interpreter, rather than
adamc@985 279 compilation to JavaScript; this avoids common browser flaws: lack of
adamc@985 280 optimization of tail calls and occasional bugs in closure handling.
adamc@985 281 - Bug fixes
adamc@985 282
adamc@968 283 ========
adamc@968 284 20090919
adamc@968 285 ========
adamc@968 286
adamc@968 287 - Bug fixes
adamc@968 288 - Optimization improvements
adamc@968 289 - Expanded grid demo in demo/more: optional columns, sorting, filtering,
adamc@968 290 paging, selecting rows, aggregate row
adamc@968 291
adamc@929 292 ========
adamc@929 293 20090912
adamc@929 294 ========
adamc@929 295
adamc@929 296 - Bug fixes
adamc@929 297 - Optimization improvements
adamc@929 298 - New set of extra demos in demo/more
adamc@929 299
adamc@914 300 ========
adamc@914 301 20090825
adamc@914 302 ========
adamc@914 303
adamc@914 304 - Many bug fixes
adamc@914 305 - Remote procedure calls must be marked with the new 'rpc' function.
adamc@914 306 - Some tweaks to enable usage on OSX (suggested by Paul Snively)
adamc@914 307
adamc@897 308 ========
adamc@897 309 20090718
adamc@897 310 ========
adamc@897 311
adamc@897 312 - New application protocols: CGI and FastCGI
adamc@897 313 - New database backends: MySQL and SQLite
adamc@897 314 - More JavaScript events added to tags in standard library
adamc@897 315 - New manual section on using the foreign function interface (FFI)
adamc@897 316
adamc@852 317 ========
adamc@852 318 20090623
adamc@852 319 ========
adamc@852 320
adamc@852 321 - Many bug fixes
adamc@852 322 - Mutually-recursive datatypes
adamc@852 323 - SML-style pattern-matching syntax for "fun", "fn", and local "val"
adamc@852 324 - Backwards-incompatible change to syntax of formal constructor parameters to
adamc@852 325 value-level functions, to support the previous change
adamc@852 326 - Path map support inspired by SML/NJ CM and MLton ML Basis
adamc@852 327 - Start of some new standard library modules
adamc@852 328 - Some improvements to JavaScript runtime, including better error handling
adamc@852 329
adamc@716 330 ========
adamc@790 331 20090505
adamc@716 332 ========
adamc@716 333
adamc@716 334 - Reimplement constructor class resolution to be more general and Prolog-like
adamc@716 335 - SQL table constraints
adamc@770 336 - URLs
adamc@736 337 - Client-side error handling callbacks
adamc@736 338 - CSS
adamc@736 339 - Signing cookie values cryptographically to thwart cross site request forgery
adamc@744 340 - Blobs and HTTP file upload
adamc@752 341 - SQL outer joins
adamc@755 342 - SQL views
adamc@756 343 - Subforms
adamc@768 344 - C and JavaScript FFI
adamc@768 345 - Path rewriting
adamc@716 346
adamc@702 347 ========
adamc@702 348 20090405
adamc@702 349 ========
adamc@702 350
adamc@702 351 - Asynchronous message-passing and the associated server-side client
adamc@702 352 bookkeeping
adamc@702 353 - Reimplement parts of the client-side runtime system to avoid space leaks
adamc@702 354 - spawn and sleep
adamc@702 355 - Expand the constructor class instance rule format
adamc@702 356
adamc@663 357 ========
adamc@663 358 20090312
adamc@663 359 ========
adamc@663 360
adamc@663 361 - Replace type-level "fold" with "map"
adamc@663 362 - Replace expression-level "fold" with folders, defined in Top and
adamc@663 363 supported by some special compiler inference
adamc@663 364 - Replace guarded constructors with guarded types, introduced only by
adamc@663 365 guarded expression abstraction, and with a new explicit application form
adamc@663 366 - Kind polymorphism
adamc@663 367 - Generalize type classes to constructor classes
adamc@663 368 - Initial compilation of client-side code to JavaScript
adamc@663 369 - Initial support for mixed client- and server-side programming (i.e., "AJAX")
adamc@665 370 - src/coq: Coq formalization of a core Ur-like calculus
adamc@663 371
adamc@506 372 ========
adamc@561 373 20081209
adamc@506 374 ========
adamc@506 375
adamc@506 376 - Optimization: Fusing page writes with calls to recursive functions
adamc@523 377 - Optimization of bottleneck compiler phases
adamc@561 378 - Reference manual
adamc@561 379 - SQL arithmetic operators
adamc@506 380
adamc@504 381 ========
adamc@504 382 20081120
adamc@504 383 ========
adamc@504 384
adamc@504 385 - Fix bug that sometimes led to omission of initial "<html>" in pages
adamc@504 386 - Take advantage of nested functions in some demos
adamc@504 387 - "profile" option that may appear in .urp files, to enable gprof profiling
adamc@663 388 - "-guided-demo" option that works like "-demo" but uses less screen space for
adamc@663 389 prose
adamc@504 390
adamc@467 391 ========
adamc@497 392 20081118
adamc@467 393 ========
adamc@467 394
adamc@467 395 - Nested function definitions
adamc@467 396 - Primitive "time" type
adamc@467 397 - Nullable SQL columns (via "option")
adamc@467 398 - Cookies
adamc@663 399 - Compiler: Specialization of functions to known arguments (especially of
adamc@663 400 function type)
adamc@467 401
adamc@435 402 ========
adamc@435 403 20081028
adamc@435 404 ========
adamc@435 405
adamc@435 406 - Add GCCARGS configure option
adamc@435 407
adamc@433 408 ========
adamc@433 409 20081027
adamc@433 410 ========
adamc@433 411
adamc@433 412 - On missing inputs, print an error message, but don't exit the web server.
adamc@434 413 - Remove need for "() <-" notation.
adamc@433 414
adamc@433 415 ========
adamc@433 416 20081026
adamc@433 417 ========
adamc@433 418
adamc@433 419 - Change 'sed' call to work on OSX.
adamc@433 420 - Avoid including or linking libpq files on apps that don't use SQL.