158 lines
4.2 KiB
Python
158 lines
4.2 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright (c) 2016 Microsoft Corporation. All rights reserved.
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# Released under Apache 2.0 license as described in the file LICENSE.
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#
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# Authors: Sebastian Ullrich, Gabriel Ebner
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#
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import gdb
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import gdb.printing
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class LeanNamePrinter:
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"""Print a lean::name object."""
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def __init__(self, val):
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self.val = val
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def to_string(self):
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def rec(imp):
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s = ("'%s'" % imp['m_str'].string()) if imp['m_is_string'] else str(imp['m_k'])
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if imp['m_prefix']:
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return "%s.%s" % (rec(imp['m_prefix'].dereference()), s)
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else:
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return s
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if not self.val['m_ptr']:
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return ""
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else:
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return rec(self.val['m_ptr'].dereference())
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class LeanExprPrinter:
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"""Print a lean::expr object."""
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expr_kinds = [
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'lean::expr_var',
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'lean::expr_sort',
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'lean::expr_const',
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'lean::expr_mlocal',
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'lean::expr_mlocal',
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'lean::expr_app',
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'lean::expr_binding',
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'lean::expr_binding',
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'lean::expr_let',
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'lean::expr_macro',
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]
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def __init__(self, val):
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kind = val['m_ptr']['m_kind']
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subtype = gdb.lookup_type(LeanExprPrinter.expr_kinds[kind])
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self.val = val['m_ptr'].cast(subtype.pointer()).dereference()
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def to_string(self):
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return str(self.val.type)
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def children(self):
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def deep_fields(v):
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for f in v.type.fields():
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if f.is_base_class:
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for g in deep_fields(v[f]):
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yield g
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elif f.name == 'm_kind':
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yield (f.name, v[f].cast(gdb.lookup_type('lean::expr_kind')))
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else:
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yield (f.name, v[f])
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return deep_fields(self.val)
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class LeanListPrinter:
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"""Print a lean::list object."""
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def __init__(self, val):
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self.val = val
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def children(self):
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l = self.val
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i = 0
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while l['m_ptr']:
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cell = l['m_ptr'].dereference()
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yield ('[%s]' % i, cell['m_head'])
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l = cell['m_tail']
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i += 1
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def to_string(self):
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return str(self.val.type)
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def display_hint(self):
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return 'array'
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class LeanBufferPrinter:
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"""Print a lean::buffer object."""
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def __init__(self, val):
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self.val = val
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def children(self):
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p = self.val['m_buffer']
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for i in range(int(self.val['m_pos'])):
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yield ('[%s]' % i, p.dereference())
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p += 1
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def to_string(self):
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return str(self.val.type)
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def display_hint(self):
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return 'array'
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class LeanRBTreePrinter:
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"""Print a lean::rb_tree object."""
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def __init__(self, val):
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self.val = val
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def children(self):
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def rec(node):
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if node['m_ptr']:
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cell = node['m_ptr'].dereference()
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for i in rec(cell['m_left']): yield i
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yield ('', cell['m_value'])
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for i in rec(cell['m_right']): yield i
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return rec(self.val['m_root'])
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def to_string(self):
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return 'lean::rb_tree' # full type is way too verbose
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def display_hint(self):
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return 'array'
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class LeanRBMapPrinter:
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"""Print a lean::rb_map object."""
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def __init__(self, val):
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self.val = val
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def children(self):
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for (_, child) in LeanRBTreePrinter(self.val['m_map']).children():
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yield ('', child['first'])
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yield ('', child['second'])
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def to_string(self):
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return 'lean::rb_map' # full type is way too verbose
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def display_hint(self):
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return 'map'
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def build_pretty_printer():
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pp = gdb.printing.RegexpCollectionPrettyPrinter("lean")
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pp.add_printer('name', '^lean::name$', LeanNamePrinter)
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pp.add_printer('expr', '^lean::expr$', LeanExprPrinter)
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pp.add_printer('list', '^lean::list', LeanListPrinter)
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pp.add_printer('buffer', '^lean::buffer', LeanBufferPrinter)
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pp.add_printer('rb_tree', '^lean::rb_tree', LeanRBTreePrinter)
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pp.add_printer('rb_map', '^lean::rb_map', LeanRBMapPrinter)
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return pp
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gdb.printing.register_pretty_printer(
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gdb.current_objfile(),
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build_pretty_printer(),
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replace=True)
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