2 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1994
4 %************************************************************************
6 \section[SrcLoc]{The @SrcLoc@ type}
8 %************************************************************************
11 #include "HsVersions.h"
16 mkSrcLoc, mkSrcLoc2, -- the usual
17 mkUnknownSrcLoc, -- "I'm sorry, I haven't a clue"
18 mkBuiltinSrcLoc, -- something wired into the compiler
19 mkGeneratedSrcLoc, -- code generated within the compiler
28 %************************************************************************
30 \subsection[SrcLoc-SrcLocations]{Source-location information}
32 %************************************************************************
34 We keep information about the {\em definition} point for each entity;
35 this is the obvious stuff:
38 = SrcLoc FAST_STRING -- source file name
39 FAST_STRING -- line number in source file
40 | SrcLoc2 FAST_STRING -- same, but w/ an Int line#
44 Note that an entity might be imported via more than one route, and
45 there could be more than one ``definition point'' --- in two or more
46 \tr{.hi} files. We deemed it probably-unworthwhile to cater for this
49 %************************************************************************
51 \subsection[SrcLoc-access-fns]{Access functions for names}
53 %************************************************************************
58 mkSrcLoc2 x IBOX(y) = SrcLoc2 x y
59 mkUnknownSrcLoc = SrcLoc SLIT("<unknown>") SLIT("<unknown>")
60 mkBuiltinSrcLoc = SrcLoc SLIT("<built-into-the-compiler>") SLIT("<none>")
61 mkGeneratedSrcLoc = SrcLoc SLIT("<compiler-generated-code>") SLIT("<none>")
63 unpackSrcLoc (SrcLoc src_file src_line) = (src_file, src_line)
64 unpackSrcLoc (SrcLoc2 src_file src_line) = (src_file, _PK_ (show IBOX(src_line)))
67 %************************************************************************
69 \subsection[SrcLoc-instances]{Instance declarations for various names}
71 %************************************************************************
74 instance Outputable SrcLoc where
75 ppr PprForUser (SrcLoc src_file src_line)
76 = ppBesides [ ppChar '"', ppPStr src_file, ppPStr SLIT("\", line "), ppPStr src_line ]
78 ppr sty (SrcLoc src_file src_line)
79 = ppBesides [ppPStr SLIT("{-# LINE "), ppPStr src_line, ppSP,
80 ppChar '"', ppPStr src_file, ppPStr SLIT("\" #-}")]
82 ppr sty (SrcLoc2 src_file src_line)
83 = ppr sty (SrcLoc src_file (_PK_ (show IBOX(src_line))))