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70 lines
2.3 KiB
Scheme
70 lines
2.3 KiB
Scheme
;; Copyright (C) 2014-2020 Free Software Foundation, Inc.
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;;
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 3 of the License, or
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;; (at your option) any later version.
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;;
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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(use-modules (gdb) (gdb printing))
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(define (make-pp_s-printer val)
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(make-pretty-printer-worker
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#f
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(lambda (printer)
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(let ((m (value-field val "m")))
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(format #f "m=<~A>" m)))
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#f))
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(define (make-pp_ss-printer val)
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(make-pretty-printer-worker
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#f
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(lambda (printer) "super struct")
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(lambda (printer)
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(make-iterator val
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(make-field-iterator (value-type val))
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(lambda (iter)
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(let ((field (iterator-next!
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(iterator-progress iter))))
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(if (end-of-iteration? field)
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field
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(let ((name (field-name field)))
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(cons name (value-field val name))))))))))
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(define (get-type-for-printing val)
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"Return type of val, stripping away typedefs, etc."
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(let ((type (value-type val)))
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(if (= (type-code type) TYPE_CODE_REF)
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(set! type (type-target type)))
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(type-strip-typedefs (type-unqualified type))))
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(define (make-pretty-printer-dict)
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(let ((dict (make-hash-table)))
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(hash-set! dict "struct s" make-pp_s-printer)
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(hash-set! dict "s" make-pp_s-printer)
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(hash-set! dict "struct ss" make-pp_ss-printer)
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(hash-set! dict "ss" make-pp_ss-printer)
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dict))
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(define *pretty-printer*
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(make-pretty-printer
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"pretty-printer-test"
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(let ((pretty-printers-dict (make-pretty-printer-dict)))
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(lambda (matcher val)
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"Look-up and return a pretty-printer that can print val."
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(let ((type (get-type-for-printing val)))
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(let ((typename (type-tag type)))
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(if typename
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(let ((printer-maker (hash-ref pretty-printers-dict typename)))
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(and printer-maker (printer-maker val)))
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#f)))))))
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(append-pretty-printer! #f *pretty-printer*)
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