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Update GDB pretty printers

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Silver 2023-03-24 00:38:02 +00:00 committed by Veikka Tuominen
parent 11903436a9
commit 83051b0cbf
1 changed files with 10 additions and 11 deletions
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21
tools/zig_gdb_pretty_printers.py
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@ -2,22 +2,24 @@
# put "source /path/to/zig_gdb_pretty_printers.py" in ~/.gdbinit to load it automatically.
import gdb.printing
class ZigPrettyPrinter(gdb.printing.PrettyPrinter):
def __init__(self):
super().__init__('Zig')
def __call__(self, val):
tag = val.type.tag
if(tag is None):
if tag is None:
return None
if(tag == '[]u8'):
if tag == '[]u8':
return StringPrinter(val)
if(tag.startswith('[]')):
if tag.startswith('[]'):
return SlicePrinter(val)
if(tag.startswith('?')):
if tag.startswith('?'):
return OptionalPrinter(val)
return None
class SlicePrinter:
def __init__(self, val):
self.val = val
@ -35,6 +37,7 @@ class SlicePrinter:
def display_hint(self):
return 'array'
class StringPrinter:
def __init__(self, val):
self.val = val
@ -45,20 +48,16 @@ class StringPrinter:
def display_hint(self):
return 'string'
class OptionalPrinter:
def __init__(self, val):
self.val = val
def to_string(self):
if(self.val['maybe']):
return None # printed by children()
if self.val['some']:
return self.val['data']
else:
return 'null'
def children(self):
def it(val):
if(val['maybe']):
yield ('payload', val['val'])
return it(self.val)
gdb.printing.register_pretty_printer(gdb.current_objfile(), ZigPrettyPrinter())