127 lines
4.2 KiB
Racket
127 lines
4.2 KiB
Racket
#lang racket
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(require "assemble.rkt"
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"browser-evaluate.rkt"
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"parse.rkt"
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"il-structs.rkt"
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racket/port
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racket/promise
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racket/runtime-path)
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(define-runtime-path runtime.js "runtime.js")
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(define runtime (call-with-input-file runtime.js
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(lambda (ip) (port->string ip))))
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; Test out the compiler, using the simulator.
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(define-syntax (test stx)
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(syntax-case stx ()
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[(_ expr expected)
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(with-syntax ([stx stx])
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(syntax/loc #'stx
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(begin
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(printf "Running ~s ...\n" (syntax->datum #'expr))
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(let ([actual expr])
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(unless (equal? actual expected)
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(raise-syntax-error #f (format "Expected ~s, got ~s" exp actual)
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#'stx))
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(printf "ok.\n\n")))))]))
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;; evaluating single expression
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(define -E (delay (make-evaluate
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(lambda (a-statement+inspector op)
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(let* ([a-statement (car a-statement+inspector)]
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[inspector (cdr a-statement+inspector)]
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[snippet (assemble-statement a-statement)]
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[code
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(string-append
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"(function() { "
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runtime
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"return function(success, fail, params){" snippet
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(format "success(String(~a)); };" inspector)
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"});")])
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(displayln snippet)
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(display code op))))))
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(define (E-single a-statement (inspector "MACHINE.val"))
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(evaluated-value ((force -E) (cons a-statement inspector))))
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;; evaluating many expressions[.
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(define -E-many (delay (make-evaluate
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(lambda (a-statement+inspector op)
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(let* ([a-statement (car a-statement+inspector)]
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[inspector (cdr a-statement+inspector)])
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(display "(function() { " op)
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(display runtime op)
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(display "var myInvoke = " op)
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(assemble/write-invoke a-statement op)
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(display ";" op)
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(fprintf op
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"return function(succ, fail, params) { myInvoke(function(v) { succ(String(~a));}, fail, params); }"
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inspector)
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(display "})" op))))))
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(define (E-many stmts (inspector "MACHINE.val"))
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(evaluated-value ((force -E-many) (cons stmts inspector))))
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;; Assigning a number
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(test (E-single (make-AssignImmediateStatement 'val (make-Const 42)))
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"42")
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;; Assigning a string
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(test (E-single (make-AssignImmediateStatement 'val (make-Const "Danny")))
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"Danny")
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;; Assigning a cons
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(test (E-single (make-AssignImmediateStatement 'val (make-Const (cons 1 2))))
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"1,2")
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;; Assigning to proc means val should still be uninitialized.
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(test (E-single (make-AssignImmediateStatement 'proc (make-Const "Danny")))
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"undefined")
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;; But we should see the assignment if we inspect MACHINE.proc.
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(test (E-single (make-AssignImmediateStatement 'proc (make-Const "Danny"))
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"MACHINE.proc")
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"Danny")
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(test (E-single (make-PushEnvironment 1)
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"MACHINE.env.length")
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"1")
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(test (E-single (make-PushEnvironment 20)
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"MACHINE.env.length")
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"20")
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;; PopEnvironment
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(test (E-many (list (make-PushEnvironment 2))
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"MACHINE.env.length")
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"2")
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(test (E-many (list (make-PushEnvironment 2)
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(make-PopEnvironment 1 0))
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"MACHINE.env.length")
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"1")
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;; Assigning to the environment
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(test (E-many (list (make-PushEnvironment 2)
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(make-AssignImmediateStatement (make-EnvLexicalReference 0)
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(make-Const 12345)))
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"MACHINE.env[1]")
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"12345")
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(test (E-many (list (make-PushEnvironment 2)
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(make-AssignImmediateStatement (make-EnvLexicalReference 0)
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(make-Const 12345)))
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"MACHINE.env[0]")
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"undefined")
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(test (E-many (list (make-PushEnvironment 2)
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(make-AssignImmediateStatement (make-EnvLexicalReference 1)
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(make-Const 12345)))
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"MACHINE.env[0]")
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"12345")
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