76 lines
2.4 KiB
Scheme
76 lines
2.4 KiB
Scheme
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(library (ikarus code-objects)
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(export
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make-code code-reloc-vector code-freevars
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code-size code-ref code-set! set-code-reloc-vector!
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code->thunk)
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(import
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(ikarus system $fx)
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(ikarus system $codes)
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(except (ikarus) make-code code-reloc-vector code-freevars
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code-size code-ref code-set! set-code-reloc-vector!))
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(define make-code
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(lambda (code-size freevars)
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(unless (and (fixnum? code-size) ($fx>= code-size 0))
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(error 'make-code "~s is not a valid code size" code-size))
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(unless (and (fixnum? freevars) ($fx>= freevars 0))
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(error 'make-code "~s is not a valid number of free vars" freevars))
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(foreign-call "ikrt_make_code" code-size freevars '#())))
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(define code-reloc-vector
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(lambda (x)
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(unless (code? x) (error 'code-reloc-vector "~s is not a code" x))
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($code-reloc-vector x)))
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(define code-freevars
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(lambda (x)
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(unless (code? x) (error 'code-closure-size "~s is not a code" x))
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($code-freevars x)))
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(define code-size
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(lambda (x)
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(unless (code? x) (error 'code-size "~s is not a code" x))
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($code-size x)))
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(define code-set!
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(lambda (x i v)
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(unless (code? x) (error 'code-set! "~s is not a code" x))
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(unless (and (fixnum? i)
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($fx>= i 0)
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($fx< i ($code-size x)))
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(error 'code-set! "~s is not a valid index" i))
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(unless (and (fixnum? v)
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($fx>= v 0)
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($fx< v 256))
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(error 'code-set! "~s is not a valid byte" v))
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($code-set! x i v)))
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(define code-ref
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(lambda (x i)
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(unless (code? x) (error 'code-ref "~s is not a code" x))
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(unless (and (fixnum? i)
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($fx>= i 0)
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($fx< i ($code-size x)))
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(error 'code-ref "~s is not a valid index" i))
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($code-ref x i)))
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(define set-code-reloc-vector!
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(lambda (x v)
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(unless (code? x)
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(error 'set-code-reloc-vector! "~s is not a code" x))
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(unless (vector? v)
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(error 'set-code-reloc-vector! "~s is not a vector" v))
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(foreign-call "ikrt_set_code_reloc_vector" x v)))
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(define code->thunk
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(lambda (x)
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(unless (code? x)
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(error 'code->thunk "~s is not a a code object" x))
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(unless ($fxzero? ($code-freevars x))
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(error 'code->thunk "~s has free variables" x))
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($code->closure x)))
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)
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