Move code for top-interaction commands to their own file.

Also adds some more test cases.

original commit: 7e0553e037bcff0a549fd3bdc86b09f00f8796f6
This commit is contained in:
Eric Dobson 2013-11-17 17:36:51 -08:00
parent 16a4734803
commit c019c9dc4b
4 changed files with 146 additions and 83 deletions

View File

@ -27,6 +27,7 @@ This file defines two sorts of primitives. All of them are provided into any mod
-lambda -define)
;; provide the contracted bindings as primitives
(all-from-out "base-contracted.rkt")
(all-from-out "top-interaction.rkt")
:
(rename-out [define-typed-struct define-struct:]
[lambda: λ:]
@ -52,6 +53,7 @@ This file defines two sorts of primitives. All of them are provided into any mod
(rename-in racket/contract/base [-> c->] [case-> c:case->])
;; contracted bindings to replace built-in ones
(except-in "base-contracted.rkt" initialize-contracted)
"top-interaction.rkt"
"base-types.rkt"
"base-types-extra.rkt"
'struct-extraction
@ -316,16 +318,6 @@ This file defines two sorts of primitives. All of them are provided into any mod
#:typed-side #f
(type->contract-fail typ #'ty)))))])]))
(define-for-syntax (fail stx)
(syntax-parse stx
[_:id
(raise-syntax-error #f "must be applied to arguments" stx)]
[_ (raise-syntax-error #f "only valid at the top-level of an interaction" stx)]))
(define-syntax :type fail)
(define-syntax :print-type fail)
(define-syntax :query-type/args fail)
(define-syntax :query-type/result fail)
(define-syntax (require/opaque-type stx)
(define-syntax-class name-exists-kw
(pattern #:name-exists))

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@ -0,0 +1,117 @@
#lang racket/base
(require
"../utils/utils.rkt"
(for-syntax
racket/base
racket/match
racket/format
racket/string
racket/list
syntax/stx
syntax/parse
"../tc-setup.rkt"
(private parse-type syntax-properties)
(types utils abbrev printer)
(typecheck tc-toplevel tc-app-helper)
(rep type-rep)
(utils tc-utils)))
(provide
(for-syntax
interactive-command?
interactive-command-procedure)
:type :print-type :query-type/args :query-type/result)
(define-for-syntax (fail _ stx)
(syntax-parse stx
[_:id
(raise-syntax-error #f "must be applied to arguments" stx)]
[_ (raise-syntax-error #f "only valid at the top-level of an interaction" stx)]))
(begin-for-syntax
(struct interactive-command (procedure)
#:property prop:procedure fail))
(define-syntax :type
(interactive-command
(λ (stx init)
(syntax-parse stx
[(_ (~optional (~and #:verbose verbose-kw)) ty:expr)
(parameterize ([current-print-type-fuel
(if (attribute verbose-kw) +inf.0 1)]
;; This makes sure unions are totally flat for the
;; infinite fuel case. If fuel that's not 0, 1, or +inf.0
;; is ever used, more may need to be done.
[current-type-names
(if (attribute verbose-kw) '() (current-type-names))]
[current-print-unexpanded (box '())])
(define type (format "~a" (parse-type #'ty)))
(define unexpanded
(remove-duplicates (unbox (current-print-unexpanded))))
(define cue (if (null? unexpanded)
""
(format "[can expand further: ~a]"
(string-join (map ~a unexpanded)))))
#`(display #,(format "~a\n~a" type cue)))]
[form
(raise-syntax-error #f "must be applied to exactly one argument" #'form)]))))
;; TODO what should be done with stx
;; Prints the _entire_ type. May be quite large.
(define-syntax :print-type
(interactive-command
(λ (stx init)
(syntax-parse stx
[(_ e)
(tc-setup #'stx #'e 'top-level expanded init tc-toplevel-form before type
#`(display
#,(parameterize ([print-multi-line-case-> #t])
(format "~a\n" (match type
[(tc-result1: t f o) t]
[(tc-results: t) (-values t)]
[(tc-any-results:) ManyUniv])))))]
[form
(raise-syntax-error #f "must be applied to exactly one argument" #'form)]))))
;; given a function and input types, display the result type
(define-syntax :query-type/args
(interactive-command
(λ (stx init)
(syntax-parse stx
[(_ op arg-type ...)
(with-syntax ([(dummy-arg ...) (generate-temporaries #'(arg-type ...))])
(tc-setup #'stx
;; create a dummy function with the right argument types
#`(lambda #,(stx-map type-label-property
#'(dummy-arg ...) #'(arg-type ...))
(op dummy-arg ...))
'top-level expanded init tc-toplevel-form before type
#`(display
#,(format "~a\n"
(match type
[(tc-result1: (and t (Function: _)) f o) t])))))]
[form
(raise-syntax-error #f "must be applied to at least one argument" #'form)]))))
;; given a function and a desired return type, fill in the blanks
(define-syntax :query-type/result
(interactive-command
(λ (stx init)
(syntax-parse stx
[(_ op desired-type)
(let ([expected (parse-type #'desired-type)])
(tc-setup #'stx #'op 'top-level expanded init tc-toplevel-form before type
(match type
[(tc-result1: (and t (Function: _)) f o)
(let ([cleaned (cleanup-type t expected)])
#`(display
#,(match cleaned
[(Function: '())
"Desired return type not in the given function's range."]
[(Function: arrs)
(format "~a\n" cleaned)])))]
[_ (error (format "~a: not a function" (syntax->datum #'op) ))])))]
[form
(raise-syntax-error #f "must be applied to exactly two arguments" #'form)]))))

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@ -3,15 +3,13 @@
(require (rename-in "utils/utils.rkt")
(for-syntax racket/base)
(for-template racket/base)
(private with-types type-contract parse-type syntax-properties)
(private with-types type-contract)
(except-in syntax/parse id)
racket/match racket/syntax racket/list syntax/stx
racket/format
(only-in racket/string string-join)
(types utils abbrev generalize printer)
racket/match racket/syntax
(types utils abbrev generalize)
(typecheck provide-handling tc-toplevel tc-app-helper)
(rep type-rep)
(for-template (only-in (base-env prims) :type :print-type :query-type/args :query-type/result))
(for-template (base-env top-interaction))
(utils utils tc-utils arm)
"tc-setup.rkt")
@ -53,69 +51,8 @@
(syntax-parse stx
[(_ . ((~datum module) . rest))
#'(module . rest)]
[(_ . ((~literal :type)
(~optional (~and #:verbose verbose-kw))
ty:expr))
(parameterize ([current-print-type-fuel
(if (attribute verbose-kw) +inf.0 1)]
;; This makes sure unions are totally flat for the
;; infinite fuel case. If fuel that's not 0, 1, or +inf.0
;; is ever used, more may need to be done.
[current-type-names
(if (attribute verbose-kw) '() (current-type-names))]
[current-print-unexpanded (box '())])
(define type (format "~a" (parse-type #'ty)))
(define unexpanded
(remove-duplicates (unbox (current-print-unexpanded))))
(define cue (if (null? unexpanded)
""
(format "[can expand further: ~a]"
(string-join (map ~a unexpanded)))))
#`(display #,(format "~a\n~a" type cue)))]
[(_ . (~and form ((~literal :type) . _)))
(raise-syntax-error #f "must be applied to exactly one argument" #'form)]
;; Prints the _entire_ type. May be quite large.
[(_ . ((~literal :print-type) e))
(tc-setup #'stx #'e 'top-level expanded init tc-toplevel-form before type
#`(display
#,(parameterize ([print-multi-line-case-> #t])
(format "~a\n" (match type
[(tc-result1: t f o) t]
[(tc-results: t) (cons 'Values t)]
[(tc-any-results:) ManyUniv])))))]
[(_ . (~and form ((~literal :print-type) . _)))
(raise-syntax-error #f "must be applied to exactly one argument" #'form)]
;; given a function and input types, display the result type
[(_ . ((~literal :query-type/args) op arg-type ...))
(with-syntax ([(dummy-arg ...) (generate-temporaries #'(arg-type ...))])
(tc-setup #'stx
;; create a dummy function with the right argument types
#`(lambda #,(stx-map type-label-property
#'(dummy-arg ...) #'(arg-type ...))
(op dummy-arg ...))
'top-level expanded init tc-toplevel-form before type
#`(display
#,(format "~a\n"
(match type
[(tc-result1: (and t (Function: _)) f o) t])))))]
[(_ . (~and form ((~literal :query-type/args) . _)))
(raise-syntax-error #f "must be applied to at least one argument" #'form)]
;; given a function and a desired return type, fill in the blanks
[(_ . ((~literal :query-type/result) op desired-type))
(let ([expected (parse-type #'desired-type)])
(tc-setup #'stx #'op 'top-level expanded init tc-toplevel-form before type
(match type
[(tc-result1: (and t (Function: _)) f o)
(let ([cleaned (cleanup-type t expected)])
#`(display
#,(match cleaned
[(Function: '())
"Desired return type not in the given function's range."]
[(Function: arrs)
(format "~a\n" cleaned)])))]
[_ (error (format "~a: not a function" (syntax->datum #'op) ))])))]
[(_ . (~and form ((~literal :query-type/result) . _)))
(raise-syntax-error #f "must be applied to exactly two arguments" #'form)]
[(_ . (~and form ((~var command (static interactive-command? #f)) . _)))
((interactive-command-procedure (attribute command.value)) #'form init)]
[(_ . form)
(init)
(tc-setup

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@ -43,6 +43,7 @@
(eval `(#%top-interaction .
,(syntax->datum #'form)) (force promised-ns)))))))]))
;; Add 'only at the toplevel tests'
(define (interactive-tests)
(test-suite "Interactive tests"
(test-form #rx"1"
@ -51,8 +52,10 @@
(:type Byte))
(test-form (regexp-quote "(U 0 1 Byte-Larger-Than-One")
(:type #:verbose Byte))
(test-form-exn #rx"applied to arguments"
(test-form-exn #rx":type.*applied to arguments"
:type)
(test-form-exn #rx":type.*only valid at the top-level"
(list (:type)))
(test-form-exn #rx"exactly one argument"
(:type))
(test-form-exn #rx"exactly one argument"
@ -60,20 +63,34 @@
(test-form-exn #rx"exactly one argument"
(:type #:verbose))
(test-form-exn #rx"applied to arguments"
(test-form #rx"Positive-Index"
(:print-type (+ 1 1)))
(test-form (regexp-quote "(values One One)")
(:print-type (values 1 1)))
(test-form-exn #rx":print-type.*applied to arguments"
:print-type)
(test-form-exn #rx":print-type.*only valid at the top-level"
(list (:print-type)))
(test-form-exn #rx"exactly one argument"
(:print-type))
(test-form-exn #rx"exactly one argument"
(:print-type 1 2))
(test-form-exn #rx"applied to arguments"
(test-form (regexp-quote "(4 Zero -> Zero)")
(:query-type/args * 4 0))
(test-form-exn #rx":query-type/args.*applied to arguments"
:query-type/args)
(test-form-exn #rx":query-type/args.*only valid at the top-level"
(list (:query-type/args)))
(test-form-exn #rx"at least one argument"
(:query-type/args))
(test-form-exn #rx"applied to arguments"
(test-form (regexp-quote "(case-> (One -> One) (-> One))")
(:query-type/result * 1))
(test-form-exn #rx":query-type/result.*applied to arguments"
:query-type/result)
(test-form-exn #rx":query-type/result.*only valid at the top-level"
(list (:query-type/result)))
(test-form-exn #rx"exactly two arguments"
(:query-type/result))
(test-form-exn #rx"exactly two arguments"