ada-mode: Identifier completion
8 Identifier completion
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Emacs and Ada mode provide two general ways for the completion of
identifiers. This is an easy way to type faster: you just have to type
the first few letters of an identifiers, and then loop through all the
possible completions.
The first method is general for Emacs. It works by parsing all open
files for possible completions.
For instance, if the words ‘my_identifier’, ‘my_subprogram’ are the
only words starting with ‘my’ in any of the opened files, then you will
have this scenario:
You type: myM-/
Emacs inserts: ‘my_identifier’
If you press M-/ once again, Emacs replaces ‘my_identifier’ with
‘my_subprogram’.
Pressing M-/ once more will bring you back to ‘my_identifier’.
This is a very fast way to do completion, and the casing of words
will also be respected.
The second method (‘C-<TAB>’) is specific to Ada mode and the GNAT
compiler. Emacs will search the cross-information for possible
completions.
The main advantage is that this completion is more accurate: only
existing identifier will be suggested.
On the other hand, this completion is a little bit slower and
requires that you have compiled your file at least once since you
created that identifier.
‘C-<TAB>’
Complete current identifier using cross-reference information.
‘M-/’
Complete identifier using buffer information (not Ada-specific).
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