num_children is "last_index" + 1, thus
num_children + 1 = "last_index" + 2
this worked anyway because the index of `$$dereference$$` would work as long as
it was past the last index.
Add deref support to `llvm::Optional` in `lldbDataFormatters.py`.
This creates a synthetic provider that adds dereference support, but otherwise proxies all access to the underlying value.
With this change, an optional value can be displayed by running `v *someOptional`, and its contents can be accessed with the arrow `operator->`, for example `v someOpt->HasThing`. This matches expressions usable from expression evaluation.
See also D97165 and D97524.
Differential Revision: https://reviews.llvm.org/D97525
These data formatters make the string value appear in Xcode's
variables view (and on the command line) without having to expand the
data structure.
Differential Revision: https://reviews.llvm.org/D66354
llvm-svn: 369175
SmallVector was changed to store a begin and a size rather than a
begin and an end a while back. Update the formatter to look at the
correct members.
llvm-svn: 346252
The llvm::Optional data formatter needs to look through the `Storage`
container if it's present.
Before:
220 if (Op && Op->getOp() != dwarf::DW_OP_LLVM_fragment)
-> 221 HasComplexExpression = true;
222
223 // If the register can only be described by a complex expression (i.e.,
224 // multiple subregisters) it doesn't safely compose with another complex
Target 0: (llc) stopped.
(lldb) p Op
(llvm::Optional<llvm::DIExpression::ExprOperand>) $0 = None
After:
(lldb) p Op
(llvm::Optional<llvm::DIExpression::ExprOperand>) $0 =
(llvm::DIExpression::ExprOperand) storage = {
Op = 0x000000010603d460
}
llvm-svn: 337752
This lets lldb give sane output for SmallVectors, e.g.
Before:
(lldb) p sv
(llvm::SmallVector<int, 10>) $0 = {
(llvm::SmallVectorImpl<int>) llvm::SmallVectorImpl<int> = {
(llvm::SmallVectorTemplateBase<int>) llvm::SmallVectorTemplateBase<int> = {
(llvm::SmallVectorTemplateCommon<int>) llvm::SmallVectorTemplateCommon<int> = {
(llvm::SmallVectorBase) llvm::SmallVectorBase = {
(void *) BeginX = 0x00007fff5fbff960
...
}
After:
(lldb) p sv
(llvm::SmallVector<int, 10>) $0 = {
(int) [0] = 42
(int) [1] = 23
...
}
The script is still a bit rough so expect crashes for vectors of complex types.
Synthetic children are _not_ available in xcode 4.2, newer LLDBs should work though.
llvm-svn: 148308
Dave Lee