(:require [clojure.spec.alpha :as s] [clojure.spec.gen.alpha :as gen] [clojure.spec.test.alpha :as stest])
The official changelog tracks deltas between major stable versions. This page gathers the interim dev release announcements during development.
1.9.0-beta2 includes the following changes since 1.9.0-beta1:
1.9.0-beta1 includes the following changes since 1.9.0-alpha20:
CLJ-2077 - Clojure can’t be loaded from the boot classpath under java 9
1.9.0-alpha20 includes the following changes since 1.9.0-alpha19:
CLJ-1074 - (new) add new ## reader macro for symbolic values, and read/print support for double vals ##Inf, ##-Inf, ##NaN
CLJ-1454 - (new) add swap-vals! and reset-vals! that return both old and new values
CLJ-2184 - (errors) propagate meta in doto forms to improve error reporting
CLJ-2210 - (perf) cache class derivation in compiler to improve compiler performance
CLJ-2070 - (perf) clojure.core/delay - improve performance
CLJ-1917 - (perf) reducing seq over string should call String/length outside of loop
CLJ-1901 - (perf) amap - should call alength only once
CLJ-99 - (perf) min-key and max-key - evaluate k on each arg at most once
CLJ-2188 - (perf) slurp - mark return type as String
CLJ-2108 - (startup time) delay loading of spec and core specs (still more to do on this)
CLJ-2204 - (security) disable serialization of proxy classes to avoid potential issue when deserializing
CLJ-2048 - (fix) specify type to avoid ClassCastException when stack trace is elided by JVM
CLJ-1887 - (fix) IPersistentVector.length() - implement missing method
CLJ-1841 - (fix) bean - iterator was broken
CLJ-1714 - (fix) using a class in a type hint shouldn’t load the class
CLJ-1398 - (fix) clojure.java.javadoc/javadoc - update doc urls
CLJ-1371 - (fix) Numbers.divide(Object, Object) - add checks for NaN
CLJ-1358 - (fix) doc - does not expand special cases properly (try, catch)
CLJ-1705 - (fix) vector-of - fix NullPointerException if given unrecognized type
CLJ-2170 - (doc) fix improperly located docstrings
CLJ-2156 - (doc) clojure.java.io/copy - doc char support
CLJ-2051 - (doc) clojure.instant/validated docstring - fix typo
CLJ-2104 - (doc) clojure.pprint docstring - fix typo
CLJ-2028 - (doc) filter, filterv, remove, take-while - fix docstrings
CLJ-1873 - (doc) require, data-readers - add .cljc files to docstrings
CLJ-1159 - (doc) clojure.java.io/delete-file - improve docstring
CLJ-2039 - (doc) deftype - fix typo in docstring
CLJ-1918 - (doc) await - improve docstring re shutdown-agents
CLJ-1837 - (doc) index-of, last-index-of - clarify docstrings
CLJ-1826 - (doc) drop-last - fix docstring
CLJ-1859 - (doc) zero?, pos?, neg? - fix docstrings
Make the default import set public in RT
Can now bind
reader-resolver to an impl of LispReader$Resolver to control the reader’s use of namespace interactions when resolving autoresolved keywords and maps.
Tighten autoresolved keywords and autoresolved namespace map syntax to support only aliases, as originally intended
Updated to use core.specs.alpha 0.1.24
CLJ-1793 - Clear 'this' before calls in tail position
CLJ-2091 clojure.lang.APersistentVector#hashCode is not thread-safe
CLJ-1860 Make -0.0 hash consistent with 0.0
CLJ-2141 Return only true/false from qualified-* predicates
CLJ-2142 Fix check for duplicate keys with namespace map syntax
CLJ-2128 spec error during macroexpand no longer throws compiler exception with location
Updated to use spec.alpha 0.1.123
1.9.0-alpha16 includes the following changes since 1.9.0-alpha15:
The namespaces clojure.spec, clojure.spec.gen, clojure.spec.test have been moved to the external library spec.alpha which Clojure includes via dependency
These namespaces have been changed and now have an appended ".alpha": clojure.spec.alpha, clojure.spec.gen.alpha, clojure.spec.test.alpha
All keyword constants in clojure.spec (like :clojure.spec/invalid) follow the same namespace change (now :clojure.spec.alpha/invalid)
spec-related system properties related to assertions did NOT change
The specs for clojure.core itself in namespace clojure.core.specs have been moved to the external library core.specs.alpha which Clojure now depends on
The clojure.core.specs namespace has changed to clojure.core.specs.alpha. All qualified spec names in that namespace follow the same namespace change (most people were not using these directly)
In most cases, you should be able to update your usage of Clojure 1.9.0-alphaX to Clojure 1.9.0-alpha16 by:
Updating your Clojure dependency to [org.clojure/clojure "1.9.0-alpha16"] - this will automatically pull in the 2 additional downstream libraries
Changing your namespace declarations in namespaces that declare or use specs to:
(:require [clojure.spec.alpha :as s] [clojure.spec.gen.alpha :as gen] [clojure.spec.test.alpha :as stest])
We are moving spec out of the Clojure repo/artifact and into a library to make it easier to evolve spec independently from Clojure. While we consider spec to be an essential part of Clojure 1.9, there are a number of design concerns to resolve before it can be finalized. This allows us to move towards a production Clojure release (1.9) that depends on an alpha version of spec. Users can also pick up newer versions of the spec alpha library as desired. Additionally, this is a first step towards increased support for leveraging dependencies within Clojure.
We will be creating two new contrib libraries that will contain the following (renamed) namespaces:
org.clojure/spec.alpha clojure.spec.alpha (previously clojure.spec) clojure.spec.gen.alpha (previously clojure.spec.gen) clojure.spec.test.alpha (previously clojure.spec.test) org.clojure/core.specs.alpha clojure.core.specs.alpha (previously clojure.core.specs)
In most cases, we expect that users have aliased their reference to the spec namespaces and updating to the changed namespaces will only require a single change at the point of the require.
How will ClojureScript’s spec implementation change?
ClojureScript will also change namespace names to match Clojure. Eventually, the ClojureScript implementation may move out of ClojureScript and into the spec.alpha library - this is still under discussion.
Why do the libraries and namespaces end in alpha?
The "alpha" indicates that the spec API and implementation is still subject to change.
What will happen when the spec api is no longer considered alpha?
At that point we expect to release a non-alpha version of the spec library (with non-alpha namespaces). Users may immediately begin to use that version of spec along with whatever version of Clojure it depends on. Clojure itself will depend on it at some later point. Timing of all these actions is TBD.
Will the library support Clojure 1.8 or older versions?
No. spec uses new functions in Clojure 1.9 and it has never been a goal to provide spec for older versions. Rather, we are trying to accelerate the release of a stable Clojure 1.9 so that users can migrate forward to a stable production release with access to an alpha version of spec, and access to ongoing updated versions as they become available.
1.9.0-alpha15 includes the following changes since 1.9.0-alpha14:
CLJ-2113 - Clojure maven build updated
1.9.0-alpha14 includes the following changes since 1.9.0-alpha13:
into now has a 0-arity (returns ) and 1-arity (returns the coll you pass)
halt-when is a transducer that ends transduction when pred is satisfied. It takes an optional fn that will be invoked with the completed result so far and the input that triggered the predicate.
CLJ-2042 - clojure.spec/form of clojure.spec/? now resolves pred
CLJ-2024 - clojure.spec.test/check now fully resolves aliased fspecs
CLJ-2032 - fixed confusing error if fspec is missing :args spec
CLJ-2027 - fixed 1.9 regression with printing of
CLJ-1790 - fixed error extending protocols to Java arrays
CLJ-1242 - = on sorted sets or maps with incompatible comparators now returns false rather than throws
1.9.0-alpha13 includes the following changes since 1.9.0-alpha12:
s/conform of nilable was always returning the passed value, not the conformed value
s/nilable now creates a generator that returns nil 10% of the time (instead of 50% of the time)
s/nilable now delays realizing the predicate spec until first use (better for creating recursive specs)
clojure.spec.gen now provides a dynload version of clojure.test.check.generators/frequency
1.9.0-alpha12 includes the following changes since 1.9.0-alpha11:
spec performance has been improved for many use cases
spec explain printer is now pluggable via the dynamic var clojure.spec/explain-out which should be a function that takes an explain-data and prints to out
when a macro spec fails during macroexpand, throw ex-info with explain-data payload rather than IllegalArgumentException
pprint prints maps with namespace literal syntax when print-namespace-maps is true
CLJ-1988 - coll-of, every extended to conform sequences properly
CLJ-2004 - multi-spec form was missing retag
CLJ-2006 - fix old function name in docstring
CLJ-2008 - omit macros from checkable-syms
CLJ-2012 - fix ns spec on gen-class signatures to allow class names
CLJ-1224 - record instances now cache hasheq and hashCode like maps
CLJ-1673 - clojure.repl/dir-fn now works on namespace aliases
1.9.0-alpha11 includes the following changes since 1.9.0-alpha10:
Clojure now has specs for the following clojure.core macros: let, if-let, when-let, defn, defn-, fn, and ns. Because macro specs are checked during macroexpansion invalid syntax in these macros will now fail at compile time whereas some errors were caught at runtime and some were not caught at all.
CLJ-1914 - Fixed race condition in concurrent range realization
CLJ-1870 - Fixed reloading a defmulti removes metadata on the var
CLJ-1744 - Clear unused locals, which can prevent memory leaks in some cases
CLJ-1423 - Allow vars to be invoked with infinite arglists (also, faster)
CLJ-1993 - Added print-namespace-maps dynamic var that controls whether to use namespace map syntax for maps with keys from the same namespace. The default is false, but standard REPL bindings set this to true.
CLJ-1985 - Fixed with-gen of conformer losing unform fn
Fixed clojure.spec.test/check to skip spec’ed macros
Fixed regression from 1.9.0-alpha8 where type hints within destructuring were lost
Fixed clojure.spec/merge docstring to note merge doesn’t flow conformed values
Fixed regex ops to use gen overrides if they are used
1.9.0-alpha10 includes the following changes since 1.9.0-alpha9:
NEW clojure.core/any? - a predicate that matches anything. any? has built-in gen support. The :clojure.spec/any spec has been removed. Additionally, gen support has been added for some?.
keys* will now gen
gen overrides (see c.s/gen, c.s./exercise, c.s.t/check, c.s.t/instrument) now expect no-arg functions that return gens, rather than gens
CLJ-1977 - fix regression from alpha9 in data conversion of Throwable when stack trace is empty
1.9.0-alpha9 includes the following changes since 1.9.0-alpha8:
NEW clojure.spec/assert - a facility for adding spec assertions to your code. See the docs for compile-asserts and assert for more details.
clojure.spec/merge - now merges rather than flows in conform/unform
clojure.spec.test/instrument now reports the caller that caused an :args spec failure and ignores spec’ed macros
testable-syms renamed to
checkable-syms to better reflect their purpose. Additionally, some of the return value structure of
check has been further improved.
clojure.core/Throwable→map formerly returned StackTraceElements which were later handled by the printer. Now the StackTraceElements are converted to data such that the return value is pure Clojure data, as intended.
1.9.0-alpha8 includes the following changes since 1.9.0-alpha7:
The collection spec support has been greatly enhanced, with new controls for conforming, generation, counts, distinct elements and collection kinds. See the docs for every, every-kv, coll-of and map-of for details.
instrumenting and testing has been streamlined and made more composable, with powerful new features for spec and gen overrides, stubbing, and mocking. See the docs for these functions in clojure.spec.test: instrument, test, enumerate-ns and summarize-results.
Namespaced keyword reader format, printing and destructuring have been enhanced for lifting namespaces up for keys, supporting more succinct use of fully-qualified keywords. Updated docs will be added to clojure.org soon.
Many utilities have been added, for keys spec merging, fn exercising, Java 1.8 timestamps, bounded-count and more.
[changed] map-of - now conforms all values and optionally all keys, has additional kind, count, gen options
[changed] coll-of - now conforms all elements, has additional kind, count, gen options. No longer takes init-coll param.
[added] every - validates a collection by sampling, with many additional options
[added] every-kv - validates a map by sampling, with many additional options
[changed] gen overrides can now be specified by either name or path
[changed] fspec generator - creates a function that generates return values according to the :ret spec and ignores :fn spec
[added] explain-out - produces an explain output string from an explain-data result
[changed] explain-data - output is now a vector of problems with a :path element, not a map keyed by path
[added] get-spec - for looking up a spec in the registry by keyword or symbol
[removed] fn-spec - see get-spec
[added] exercise-fn - given a spec’ed function, returns generated args and the return value
All instrument functions moved to clojure.spec.test
[changed] instrument - previously took a var, now takes either a symbol, namespace symbol, or a collection of symbols or namespaces, plus many new options for stubbing or mocking. Check the docstring for more info.
[removed] instrument-ns - see instrument
[removed] instrument-all - see instrument
[changed] unstrument - previously took a var, now takes a symbol, namespace symbol, or collection of symbol or namespaces
[removed] unstrument-ns - see unstrument
[removed] unstrument-all - see unstrument
[added] instrumentable-syms - syms that can be instrumented
[added] with-instrument-disabled - disable instrument’s checking of calls within a scope
[changed] check-var renamed to test and has a different signature, check docs
[changed] run-tests - see test
[changed] run-all-tests - see test
[changed] check-fn - renamed to test-fn
[added] abbrev-result - returns a briefer description of a test
[added] summarize-result - returns a summary of many tests
[added] testable-syms - syms that can be tested
[added] enumerate-namespace - provides symbols for vars in namespaces
[changed] - inst-ms now works with java.time.Instant instances when Clojure is used with Java 8
[added] bounded-count - if coll is counted? returns its count, else counts at most first n elements of coll using its seq
1.9.0-alpha7 includes the following changes since 1.9.0-alpha6 (all BREAKING vs alpha5/6):
clojure.core: - long? ⇒ int? - now checks for all Java fixed precision integer types (byte,short,integer,long) - pos-long? ⇒ pos-int? - neg-long? ⇒ neg-int? - nat-long? ⇒ nat-int?
clojure.spec: - long-in-range? ⇒ int-in-range? - long-in ⇒ int-in
If you are interested in checking specifically for long?, please use #(instance? Long %).
Sorry for the switcheroo and welcome to alphatown!
1.9.0-alpha6 includes the following changes since 1.9.0-alpha5:
& regex op now fails fast when regex passes but preds do not
returns from alt/or are now map entries (supporting key/val) rather than 2-element vector
[BREAKING] fn-specs was renamed to fn-spec and returns either the registered fspec or nil
fspec now accepts ifn?, not fn?
fspec impl supports keyword lookup of its :args, :ret, and :fn specs
fix fspec describe which was missing keys and improve describe of :args/ret/fn specs
instrument now checks only the :args spec of a var - use the clojure.spec.test functions to test :ret and :fn specs
Added generator support for bytes? and uri? which were accidentally left out in alpha5
1.9.0-alpha5 includes the following changes since 1.9.0-alpha4:
Fixes: - doc was printing "Spec" when none existed - fix ? explain
New predicates in core (all also now have built-in generator support in spec): - seqable? - boolean? - long?, pos-long?, neg-long?, nat-long? - double?, bigdec? - ident?, simple-ident?, qualified-ident? - simple-symbol?, qualified-symbol? - simple-keyword?, qualified-keyword? - bytes? (for byte) - indexed? - inst? (and new inst-ms) - uuid? - uri?
New in spec: - unform - given a spec and a conformed value, returns the unconformed value - New preds: long-in-range?, inst-in-range? - New specs (with gen support): long-in, inst-in, double-in
1.9.0-alpha4 includes the following changes since 1.9.0-alpha3:
fix describe empty cat
improve update-in perf
optimize seq (&) destructuring
1.9.0-alpha3 includes the following changes since 1.9.0-alpha2:
Macro fdef specs should no longer spec the implicit &form or &env [BREAKING CHANGE]
multi-spec includes dispatch values in path
multi-spec no longer requires special default method
fix for rep* bug
added explain-str (explain that returns a string)
improved s/+ explain
explain output tweaked
fix test reporting
1.9.0-alpha2 includes the following changes since 1.9.0-alpha1:
Better describe for s/+
Capture recursion-limit on gen call
explain-data now contains :in key for the input path
CLJ-1931 - with-gen throws AbstractMethodError