amccarth created this revision.
amccarth added reviewers: emaste, jasonmolenda.
amccarth added a subscriber: lldb-commits.
When there were too many arguments given for the `frame select` command, the
error message wasn't particularly helpful and then lldb would try to select
frame -1, which resulted in an additional confusing error message.
This happened when the user expects `f s 1` to be a short form of `frame select
1`, but the `f` itself is an alias for `frame select`, so the `s` is extraneous.
The new output should make it easier for the user to understand what went wrong:
(lldb) f s 1
error: too many arguments; expect frame-index, saw 's'.
Command Options Usage:
frame select [-r <offset>] [<frame-index>]
-r <offset> ( --relative <offset> )
A relative frame index offset from the current frame index.
http://reviews.llvm.org/D15582
Files:
packages/Python/lldbsuite/test/functionalities/abbreviation/TestCommonShortSpellings.py
source/Commands/CommandObjectFrame.cpp
Index: source/Commands/CommandObjectFrame.cpp
===================================================================
--- source/Commands/CommandObjectFrame.cpp
+++ source/Commands/CommandObjectFrame.cpp
@@ -262,8 +262,10 @@
}
else
{
- result.AppendError ("invalid arguments.\n");
+ result.AppendErrorWithFormat ("too many arguments; expected
frame-index, saw '%s'.\n",
+ command.GetArgumentAtIndex(0));
m_options.GenerateOptionUsage (result.GetErrorStream(), this);
+ return false;
}
}
Index:
packages/Python/lldbsuite/test/functionalities/abbreviation/TestCommonShortSpellings.py
===================================================================
---
packages/Python/lldbsuite/test/functionalities/abbreviation/TestCommonShortSpellings.py
+++
packages/Python/lldbsuite/test/functionalities/abbreviation/TestCommonShortSpellings.py
@@ -29,6 +29,7 @@
('dis', 'disassemble'),
('ta st a', 'target stop-hook add'),
('fr v', 'frame variable'),
+ ('f 1', 'frame select 1'),
('ta st li', 'target stop-hook list'),
]
Index: source/Commands/CommandObjectFrame.cpp
===================================================================
--- source/Commands/CommandObjectFrame.cpp
+++ source/Commands/CommandObjectFrame.cpp
@@ -262,8 +262,10 @@
}
else
{
- result.AppendError ("invalid arguments.\n");
+ result.AppendErrorWithFormat ("too many arguments; expected frame-index, saw '%s'.\n",
+ command.GetArgumentAtIndex(0));
m_options.GenerateOptionUsage (result.GetErrorStream(), this);
+ return false;
}
}
Index: packages/Python/lldbsuite/test/functionalities/abbreviation/TestCommonShortSpellings.py
===================================================================
--- packages/Python/lldbsuite/test/functionalities/abbreviation/TestCommonShortSpellings.py
+++ packages/Python/lldbsuite/test/functionalities/abbreviation/TestCommonShortSpellings.py
@@ -29,6 +29,7 @@
('dis', 'disassemble'),
('ta st a', 'target stop-hook add'),
('fr v', 'frame variable'),
+ ('f 1', 'frame select 1'),
('ta st li', 'target stop-hook list'),
]
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