| 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 |
