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# Any copyright is dedicated to the Public Domain.
# http://creativecommons.org/publicdomain/zero/1.0/
def format_char(c):
if c == 0:
return "\\0"
elif c == 0x07:
return "\\a"
elif c == 0x08:
return "\\b"
elif c == 0x0C:
return "\\f"
elif c == 0x0A:
return "\\n"
elif c == 0x0D:
return "\\r"
elif c == 0x09:
return "\\t"
elif c == 0x0B:
return "\\v"
elif c == 0x5C:
return "\\"
elif c == 0x22:
return '\\"'
elif c == 0x27:
return "\\'"
elif c < 0x20 or c >= 0x80 and c <= 0xFF:
return "\\x%02x" % c
elif c >= 0x0100:
return "\\u%04x" % c
else:
return chr(c)
# Take an SBValue that is either a char* or char16_t* and formats it like lldb
# would when printing it.
def format_string(lldb_value, length=100):
ptr = lldb_value.GetValueAsUnsigned(0)
char_type = lldb_value.GetType().GetPointeeType()
if char_type.GetByteSize() == 1:
s = '"'
size = 1
mask = 0xFF
elif char_type.GetByteSize() == 2:
s = 'u"'
size = 2
mask = 0xFFFF
else:
return "(cannot format string with char type %s)" % char_type.GetName()
i = 0
terminated = False
while i < length:
c = (
lldb_value.CreateValueFromAddress(
"x", ptr + i * size, char_type
).GetValueAsUnsigned(0)
& mask
)
if c == 0:
terminated = True
break
s += format_char(c)
i = i + 1
s += '"'
if not terminated and i != length:
s += "..."
return s
# Dereferences a raw pointer, nsCOMPtr, RefPtr, nsAutoPtr, already_AddRefed or
# mozilla::RefPtr; otherwise returns the value unchanged.
def dereference(lldb_value):
if lldb_value.TypeIsPointerType():
return lldb_value.Dereference()
name = lldb_value.GetType().GetUnqualifiedType().GetName()
if (
name.startswith("nsCOMPtr<")
or name.startswith("RefPtr<")
or name.startswith("nsAutoPtr<")
or name.startswith("already_AddRefed<")
):
return lldb_value.GetChildMemberWithName("mRawPtr")
if name.startswith("mozilla::RefPtr<"):
return lldb_value.GetChildMemberWithName("ptr")
return lldb_value
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