+USING: locals math sequences tools.test hashtables words kernel
+namespaces arrays strings prettyprint io.streams.string parser
+accessors generic eval combinators combinators.short-circuit
+combinators.short-circuit.smart math.order math.functions
+definitions compiler.units fry lexer words.symbol see multiline
+combinators.smart ;
+IN: locals.tests
+
+:: foo ( a b -- a a ) a a ;
+
+{ 1 1 } [ 1 2 foo ] unit-test
+
+:: add-test ( a b -- c ) a b + ;
+
+{ 3 } [ 1 2 add-test ] unit-test
+
+:: sub-test ( a b -- c ) a b - ;
+
+{ -1 } [ 1 2 sub-test ] unit-test
+
+:: map-test ( a b -- seq ) a [ b + ] map ;
+
+{ { 5 6 7 } } [ { 1 2 3 } 4 map-test ] unit-test
+
+:: map-test-2 ( seq inc -- seq ) seq [| elt | elt inc + ] map ;
+
+{ { 5 6 7 } } [ { 1 2 3 } 4 map-test-2 ] unit-test
+
+:: let-test ( c -- d )
+ [let 1 :> a 2 :> b a b + c + ] ;
+
+{ 7 } [ 4 let-test ] unit-test
+
+:: let-test-2 ( a -- a )
+ a [let :> a [let a :> b a ] ] ;
+
+{ 3 } [ 3 let-test-2 ] unit-test
+
+:: let-test-3 ( a -- a )
+ a [let :> a [let [ a ] :> b [let 3 :> a b ] ] ] ;
+
+:: let-test-4 ( a -- b )
+ a [let 1 :> a :> b a b 2array ] ;
+
+{ { 1 2 } } [ 2 let-test-4 ] unit-test
+
+:: let-test-5 ( a b -- b )
+ a b [let :> a :> b a b 2array ] ;
+
+{ { 2 1 } } [ 1 2 let-test-5 ] unit-test
+
+:: let-test-6 ( a -- b )
+ a [let :> a 1 :> b a b 2array ] ;
+
+{ { 2 1 } } [ 2 let-test-6 ] unit-test
+
+{ -1 } [ -1 let-test-3 call ] unit-test
+
+:: write-test-1 ( n! -- q )
+ [| i | n i + dup n! ] ;
+
+0 write-test-1 "q" set
+
+{ 1 1 } "q" get must-infer-as
+
+{ 1 } [ 1 "q" get call ] unit-test
+
+{ 2 } [ 1 "q" get call ] unit-test
+
+{ 3 } [ 1 "q" get call ] unit-test
+
+{ 5 } [ 2 "q" get call ] unit-test
+
+:: write-test-2 ( -- q )
+ [let 0 :> n! [| i | n i + dup n! ] ] ;
+
+write-test-2 "q" set
+
+{ 1 } [ 1 "q" get call ] unit-test
+
+{ 2 } [ 1 "q" get call ] unit-test
+
+{ 3 } [ 1 "q" get call ] unit-test
+
+{ 5 } [ 2 "q" get call ] unit-test
+
+{ 10 20 }
+[
+ 20 10 [| a! | [| b! | a b ] ] call call
+] unit-test
+
+:: write-test-3 ( a! -- q ) [| b | b a! ] ;
+
+{ } [ 1 2 write-test-3 call ] unit-test
+
+:: write-test-4 ( x! -- q ) [ [let 0 :> y! f x! ] ] ;
+
+{ } [ 5 write-test-4 drop ] unit-test
+
+:: let-let-test ( n -- n ) [let n 3 + :> n n ] ;
+
+{ 13 } [ 10 let-let-test ] unit-test
+
+GENERIC: lambda-generic ( a b -- c )
+
+GENERIC#: lambda-generic-1 1 ( a b -- c )
+
+M:: integer lambda-generic-1 ( a b -- c ) a b * ;
+
+M:: string lambda-generic-1 ( a b -- c )
+ a b CHAR: x <string> lambda-generic ;
+
+M:: integer lambda-generic ( a b -- c ) a b lambda-generic-1 ;
+
+GENERIC#: lambda-generic-2 1 ( a b -- c )
+
+M:: integer lambda-generic-2 ( a b -- c )
+ a CHAR: x <string> b lambda-generic ;
+
+M:: string lambda-generic-2 ( a b -- c ) a b append ;
+
+M:: string lambda-generic ( a b -- c ) a b lambda-generic-2 ;
+
+{ 10 } [ 5 2 lambda-generic ] unit-test
+
+{ "abab" } [ "aba" "b" lambda-generic ] unit-test
+
+{ "abaxxx" } [ "aba" 3 lambda-generic ] unit-test
+
+{ "xaba" } [ 1 "aba" lambda-generic ] unit-test
+
+{ } [ \ lambda-generic-1 see ] unit-test
+
+{ } [ \ lambda-generic-2 see ] unit-test
+
+{ } [ \ lambda-generic see ] unit-test
+
+:: unparse-test-1 ( a -- ) [let 3 :> a! 4 :> b ] ;
+
+{ "[let 3 :> a! 4 :> b ]" } [
+ \ unparse-test-1 "lambda" word-prop body>> first unparse
+] unit-test
+
+:: unparse-test-3 ( -- b ) [| a! | ] ;
+
+{ "[| a! | ]" } [
+ \ unparse-test-3 "lambda" word-prop body>> first unparse
+] unit-test
+
+DEFER: xyzzy
+
+{ } [
+ "IN: locals.tests USE: math GENERIC: xyzzy ( a -- b ) M: integer xyzzy ;"
+ <string-reader> "lambda-generic-test" parse-stream drop
+] unit-test
+
+{ 10 } [ 10 xyzzy ] unit-test
+
+{ } [
+ "IN: locals.tests USE: math USE: locals GENERIC: xyzzy ( a -- b ) M:: integer xyzzy ( n -- x ) 5 ;"
+ <string-reader> "lambda-generic-test" parse-stream drop
+] unit-test
+
+{ 5 } [ 10 xyzzy ] unit-test
+
+GENERIC: next-method-test ( a -- b )
+
+M: integer next-method-test 3 + ;
+
+M:: fixnum next-method-test ( a -- b ) a call-next-method 1 + ;
+
+{ 5 } [ 1 next-method-test ] unit-test
+
+: no-with-locals-test ( -- seq ) { 1 2 3 } [| x | x 3 + ] map ;
+
+{ { 4 5 6 } } [ no-with-locals-test ] unit-test
+
+{ 3 0 } [| a b c | ] must-infer-as
+
+{ } [ 1 [let :> a ] ] unit-test
+
+{ 3 } [ 1 [let :> a 3 ] ] unit-test
+
+{ } [ 1 2 [let :> a :> b ] ] unit-test
+
+:: a-word-with-locals ( a b -- ) ;
+
+CONSTANT: new-definition "USING: math ;\nIN: locals.tests\n: a-word-with-locals ( -- x ) 2 3 + ;\n"
+
+{ } [ new-definition eval( -- ) ] unit-test
+
+{ t } [
+ [ \ a-word-with-locals see ] with-string-writer
+ new-definition =
+] unit-test
+
+CONSTANT: method-definition "USING: locals.tests sequences ;\nM:: sequence method-with-locals ( a -- y ) a reverse ;\n"
+
+GENERIC: method-with-locals ( x -- y )
+
+M:: sequence method-with-locals ( a -- y ) a reverse ;
+
+{ t } [
+ [ \ sequence \ method-with-locals lookup-method see ] with-string-writer
+ method-definition =
+] unit-test
+
+:: cond-test ( a b -- c )
+ {
+ { [ a b < ] [ 3 ] }
+ { [ a b = ] [ 4 ] }
+ { [ a b > ] [ 5 ] }
+ } cond ;
+
+\ cond-test def>> must-infer
+
+{ 3 } [ 1 2 cond-test ] unit-test
+{ 4 } [ 2 2 cond-test ] unit-test
+{ 5 } [ 3 2 cond-test ] unit-test
+
+:: 0&&-test ( a -- ? )
+ { [ a integer? ] [ a even? ] [ a 10 > ] } 0&& ;
+
+\ 0&&-test def>> must-infer
+
+{ f } [ 1.5 0&&-test ] unit-test
+{ f } [ 3 0&&-test ] unit-test
+{ f } [ 8 0&&-test ] unit-test
+{ t } [ 12 0&&-test ] unit-test
+
+:: &&-test ( a -- ? )
+ { [ a integer? ] [ a even? ] [ a 10 > ] } && ;
+
+\ &&-test def>> must-infer
+
+{ f } [ 1.5 &&-test ] unit-test
+{ f } [ 3 &&-test ] unit-test
+{ f } [ 8 &&-test ] unit-test
+{ t } [ 12 &&-test ] unit-test
+
+:: let-and-cond-test-1 ( -- a )
+ [let 10 :> a
+ [let 20 :> a
+ {
+ { [ t ] [ [let 30 :> c a ] ] }
+ } cond
+ ]
+ ] ;
+
+\ let-and-cond-test-1 def>> must-infer
+
+{ 20 } [ let-and-cond-test-1 ] unit-test
+
+:: let-and-cond-test-2 ( -- pair )
+ [let 10 :> A
+ [let 20 :> B
+ { { [ t ] [ { A B } ] } } cond
+ ]
+ ] ;
+
+\ let-and-cond-test-2 def>> must-infer
+
+{ { 10 20 } } [ let-and-cond-test-2 ] unit-test
+
+{ { 10 } } [ 10 [| a | { a } ] call ] unit-test
+{ { 10 20 } } [ 10 20 [| a b | { a b } ] call ] unit-test
+{ { 10 20 30 } } [ 10 20 30 [| a b c | { a b c } ] call ] unit-test
+
+{ { 10 20 30 } } [ [let 10 :> a 20 :> b 30 :> c { a b c } ] ] unit-test
+
+{ V{ 10 20 30 } } [ 10 20 30 [| a b c | V{ a b c } ] call ] unit-test
+
+{ H{ { 10 "a" } { 20 "b" } { 30 "c" } } }
+[ 10 20 30 [| a b c | H{ { a "a" } { b "b" } { c "c" } } ] call ] unit-test
+
+TUPLE: test-tuple a b c ;
+
+{ T{ test-tuple f 0 3 "abc" } }
+[ 0 3 "abc" [| a b c | T{ test-tuple f a b c } ] call ] unit-test
+
+{ 3 1 } [| a b c | T{ test-tuple f a b c } ] must-infer-as
+
+ERROR: punned-class x ;
+
+{ T{ punned-class f 3 } } [ 3 [| a | T{ punned-class f a } ] call ] unit-test
+
+:: literal-identity-test ( -- a b )
+ { 1 } V{ } ;
+
+{ t t } [
+ literal-identity-test
+ literal-identity-test
+ [ eq? ] [ eq? ] bi-curry* bi*
+] unit-test
+
+:: mutable-local-in-literal-test ( a! -- b ) a 1 + a! { a } ;
+
+{ { 4 } } [ 3 mutable-local-in-literal-test ] unit-test
+
+:: compare-case ( obj1 obj2 lt-quot eq-quot gt-quot -- )
+ obj1 obj2 <=> {
+ { +lt+ [ lt-quot call ] }
+ { +eq+ [ eq-quot call ] }
+ { +gt+ [ gt-quot call ] }
+ } case ; inline
+
+[ [ ] [ ] [ ] compare-case ] must-infer
+
+:: big-case-test ( a -- b )
+ a {
+ { 0 [ a 1 + ] }
+ { 1 [ a 1 - ] }
+ { 2 [ a 1 swap / ] }
+ { 3 [ a dup * ] }
+ { 4 [ a sqrt ] }
+ { 5 [ a a ^ ] }
+ } case ;
+
+\ big-case-test def>> must-infer
+
+{ 9 } [ 3 big-case-test ] unit-test
+
+! Dan found this problem
+: littledan-case-problem-1 ( a -- b )
+ {
+ { t [ 3 ] }
+ { f [ 4 ] }
+ [| x | x 12 + { "howdy" } nth ]
+ } case ;
+
+\ littledan-case-problem-1 def>> must-infer
+
+{ "howdy" } [ -12 \ littledan-case-problem-1 def>> call ] unit-test
+{ "howdy" } [ -12 littledan-case-problem-1 ] unit-test
+
+:: littledan-case-problem-2 ( a -- b )
+ a {
+ { t [ a not ] }
+ { f [ 4 ] }
+ [| x | x a - { "howdy" } nth ]
+ } case ;
+
+\ littledan-case-problem-2 def>> must-infer
+
+{ "howdy" } [ -12 \ littledan-case-problem-2 def>> call ] unit-test
+{ "howdy" } [ -12 littledan-case-problem-2 ] unit-test
+
+:: littledan-cond-problem-1 ( a -- b )
+ a {
+ { [ dup 0 < ] [ drop a not ] }
+ { [| y | y y 0 > ] [ drop 4 ] }
+ [| x | x a - { "howdy" } nth ]
+ } cond ;
+
+\ littledan-cond-problem-1 def>> must-infer
+
+{ f } [ -12 \ littledan-cond-problem-1 def>> call ] unit-test
+{ 4 } [ 12 \ littledan-cond-problem-1 def>> call ] unit-test
+{ "howdy" } [ 0 \ littledan-cond-problem-1 def>> call ] unit-test
+{ f } [ -12 littledan-cond-problem-1 ] unit-test
+{ 4 } [ 12 littledan-cond-problem-1 ] unit-test
+{ "howdy" } [ 0 littledan-cond-problem-1 ] unit-test
+
+/*
+:: littledan-case-problem-3 ( a quot -- b )
+ a {
+ { t [ a not ] }
+ { f [ 4 ] }
+ quot
+ } case ; inline
+
+{ f } [ t [ ] littledan-case-problem-3 ] unit-test
+{ 144 } [ 12 [ sq ] littledan-case-problem-3 ] unit-test
+[| | [| a | a ] littledan-case-problem-3 ] must-infer
+
+: littledan-case-problem-4 ( a -- b )
+ [ 1 + ] littledan-case-problem-3 ;
+
+\ littledan-case-problem-4 def>> must-infer
+*/
+
+GENERIC: lambda-method-forget-test ( a -- b )
+
+M:: integer lambda-method-forget-test ( a -- b ) a ;
+
+{ } [ [ M\ integer lambda-method-forget-test forget ] with-compilation-unit ] unit-test
+
+{ 10 } [ 10 [| A | { [ A ] } ] call first call ] unit-test
+
+[
+ "USING: locals fry math ; 1 '[ [let 10 :> A A _ + ] ]"
+ eval( -- ) call
+] [ error>> >r/r>-in-fry-error? ] must-fail-with
+
+:: (funny-macro-test) ( obj quot -- ? ) obj { [ quot call ] } 1&& ; inline
+: funny-macro-test ( n -- ? ) [ odd? ] (funny-macro-test) ;
+
+\ funny-macro-test def>> must-infer
+
+{ t } [ 3 funny-macro-test ] unit-test
+{ f } [ 2 funny-macro-test ] unit-test
+
+[ "USE: locals [let" eval( -- ) ] [ error>> unexpected-eof? ] must-fail-with
+[ "USE: locals [|" eval( -- ) ] [ error>> unexpected-eof? ] must-fail-with
+
+{ 25 } [ 5 [| a | { [ a sq ] } cond ] call ] unit-test
+{ 25 } [ 5 [| | { [| a | a sq ] } ] call first call ] unit-test
+
+:: FAILdog-1 ( -- b ) { [| c | c ] } ;
+
+\ FAILdog-1 def>> must-infer
+
+:: FAILdog-2 ( a -- b ) a { [| c | c ] } cond ;
+
+\ FAILdog-2 def>> must-infer
+
+{ 3 } [ 3 [| a | \ a ] call ] unit-test
+
+[ "USE: locals [| | { [let 0 :> a a ] } ]" eval( -- ) ] must-fail
+
+[ "USE: locals [| | [let 0 :> a! { a! } ] ]" eval( -- ) ] must-fail
+
+[ "USE: locals [| | { :> a } ]" eval( -- ) ] must-fail
+
+[ "USE: locals 3 :> a" eval( -- ) ] must-fail
+
+{ 3 } [ 3 [| | :> a a ] call ] unit-test
+
+{ 3 } [ 3 [| | :> a! a ] call ] unit-test
+
+{ 3 } [ 2 [| | :> a! a 1 + a! a ] call ] unit-test
+
+: fry-locals-test-1 ( -- n )
+ [let 6 '[ [let 4 :> A A _ + ] ] call ] ;
+
+\ fry-locals-test-1 def>> must-infer
+{ 10 } [ fry-locals-test-1 ] unit-test
+
+:: fry-locals-test-2 ( -- n )
+ [let 6 '[ [let 4 :> A A _ + ] ] call ] ;
+
+\ fry-locals-test-2 def>> must-infer
+{ 10 } [ fry-locals-test-2 ] unit-test
+
+{ 1 } [ 3 4 [| | '[ [ _ swap - ] call ] call ] call ] unit-test
+{ -1 } [ 3 4 [| | [| a | a - ] call ] call ] unit-test
+{ -1 } [ 3 4 [| | [| a | a - ] curry call ] call ] unit-test
+{ -1 } [ 3 4 [| a | a - ] curry call ] unit-test
+{ 1 } [ 3 4 [| | '[ [| a | _ a - ] call ] call ] call ] unit-test
+{ -1 } [ 3 4 [| | '[ [| a | a _ - ] call ] call ] call ] unit-test
+
+{ { 1 2 3 4 } } [
+ 1 3 2 4
+ [| | '[ [| a b | a _ b _ 4array ] call ] call ] call
+] unit-test
+
+{ 10 } [
+ [| | 0 '[ [let 10 :> A A _ + ] ] call ] call
+] unit-test
+
+! littledan found this problem
+{ "bar" } [ [let [let "bar" :> foo foo ] :> a a ] ] unit-test
+{ 10 } [ [let 10 :> a [let a :> b b ] ] ] unit-test
+
+{ { \ + } } [ [let \ + :> x { \ x } ] ] unit-test
+
+{ { \ + 3 } } [ [let 3 :> a { \ + a } ] ] unit-test
+
+{ 3 } [ [let \ + :> a 1 2 [ \ a execute ] ] call ] unit-test
+
+! erg found this problem
+:: erg's-:>-bug ( n ? -- n ) ? [ n :> n n ] [ n :> b b ] if ;
+
+{ 3 } [ 3 f erg's-:>-bug ] unit-test
+
+{ 3 } [ 3 t erg's-:>-bug ] unit-test
+
+:: erg's-:>-bug-2 ( n ? -- n ) ? n '[ _ :> n n ] [ n :> b b ] if ;
+
+{ 3 } [ 3 f erg's-:>-bug-2 ] unit-test
+
+{ 3 } [ 3 t erg's-:>-bug-2 ] unit-test
+
+! dharmatech found this problem
+GENERIC: ed's-bug ( a -- b )
+
+M: string ed's-bug reverse ;
+M: integer ed's-bug neg ;
+
+:: ed's-test-case ( a -- b )
+ { [ a ed's-bug ] } && ;
+
+{ t } [ \ ed's-test-case word-optimized? ] unit-test
+
+! multiple bind
+{ 3 1 2 } [ [let 1 2 3 :> ( a b c ) c a b ] ] unit-test
+
+! Test smart combinators and locals interaction
+:: smart-combinator-locals ( a b c -- seq ) [ a b c ] output>array ;
+
+{ { 1 2 3 } } [ 1 2 3 smart-combinator-locals ] unit-test