llvm-project/lldb/source/Expression
Greg Clayton 8f92f0a35c Fixed an expression parsing issue where if you were stopped somewhere without
debug information and you evaluated an expression, a crash would occur as a
result of an unchecked pointer.

Added the ability to get the expression path for a ValueObject. For a rectangle
point child "x" the expression path would be something like: "rect.top_left.x".
This will allow GUI and command lines to get ahold of the expression path for
a value object without having to explicitly know about the hierarchy. This
means the ValueObject base class now has a "ValueObject *m_parent;" member.
All ValueObject subclasses now correctly track their lineage and are able
to provide value expression paths as well.

Added a new "--flat" option to the "frame variable" to allow for flat variable
output. An example of the current and new outputs:

(lldb) frame variable 
argc = 1
argv = 0x00007fff5fbffe80
pt = {
  x = 2
  y = 3
}
rect = {
  bottom_left = {
    x = 1
    y = 2
  }
  top_right = {
    x = 3
    y = 4
  }
}
(lldb) frame variable --flat 
argc = 1
argv = 0x00007fff5fbffe80
pt.x = 2
pt.y = 3
rect.bottom_left.x = 1
rect.bottom_left.y = 2
rect.top_right.x = 3
rect.top_right.y = 4


As you can see when there is a lot of hierarchy it can help flatten things out.
Also if you want to use a member in an expression, you can copy the text from
the "--flat" output and not have to piece it together manually. This can help
when you want to use parts of the STL in expressions:

(lldb) frame variable --flat
argc = 1
argv = 0x00007fff5fbffea8
hello_world._M_dataplus._M_p = 0x0000000000000000
(lldb) expr hello_world._M_dataplus._M_p[0] == '\0'

llvm-svn: 116532
2010-10-14 22:52:14 +00:00
..
ASTResultSynthesizer.cpp Updated to latest LLVM. Major LLVM changes: 2010-09-23 03:01:22 +00:00
ASTStructExtractor.cpp Updated to latest LLVM. Major LLVM changes: 2010-09-23 03:01:22 +00:00
ClangASTSource.cpp Fixed C++ class clang type creation and display by making sure we omit 2010-10-13 03:15:28 +00:00
ClangExpressionDeclMap.cpp Fixed an expression parsing issue where if you were stopped somewhere without 2010-10-14 22:52:14 +00:00
ClangExpressionParser.cpp Added extra logging, and made sure that the argument 2010-10-08 01:58:41 +00:00
ClangExpressionVariable.cpp Added a new ValueObject type that will be used to freeze dry expression 2010-10-05 00:00:42 +00:00
ClangFunction.cpp Add a way to temporarily divert events from a broadcaster to a private listener. 2010-10-11 23:53:14 +00:00
ClangPersistentVariables.cpp Added a new ValueObject type that will be used to freeze dry expression 2010-10-05 00:00:42 +00:00
ClangUserExpression.cpp Changed the timeout for expressions from 10 2010-10-07 18:17:31 +00:00
ClangUtilityFunction.cpp Cleaned a few build related things up: 2010-09-24 23:07:41 +00:00
DWARFExpression.cpp Fixed the forward declaration issue that was present in the DWARF parser after 2010-09-29 01:12:09 +00:00
IRDynamicChecks.cpp Updated to latest LLVM. Major LLVM changes: 2010-09-23 03:01:22 +00:00
IRForTarget.cpp Added handling for external variables in function 2010-10-05 22:26:43 +00:00
IRToDWARF.cpp Updated to latest LLVM. Major LLVM changes: 2010-09-23 03:01:22 +00:00
Makefile Merged Eli Friedman's linux build changes where he added Makefile files that 2010-07-09 20:39:50 +00:00
RecordingMemoryManager.cpp Added and improved logging. This is helping us as we 2010-07-28 01:00:59 +00:00