X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=docs%2Fusers_guide%2Fusing.xml;h=a44ddfc2f31968e9bd8d359e0a7da531f8c999a3;hb=637457650520c7021c5859e9663458ec8d8e1e1c;hp=88c2c9ed6ce10b8bde47562519260f2a6f741c7e;hpb=a7462cb6951c8e4c970ddb97a6238d1004b24ce4;p=ghc-hetmet.git
diff --git a/docs/users_guide/using.xml b/docs/users_guide/using.xml
index 88c2c9e..a44ddfc 100644
--- a/docs/users_guide/using.xml
+++ b/docs/users_guide/using.xml
@@ -14,7 +14,7 @@
Options can be specified in three ways:
- command-line arguments
+ Command-line argumentsstructure, command-linecommand-linearguments
@@ -26,9 +26,9 @@
ghc [argument...]
- command-line arguments are either options or file names.
+ Command-line arguments are either options or file names.
- command-line options begin with -.
+ Command-line options begin with -.
They may not be grouped:
is different from .
Options need not precede filenames: e.g., ghc *.o -o
@@ -40,7 +40,7 @@ ghc [argument...]
- command line options in source files
+ Command line options in source filessource-file options
@@ -81,7 +81,7 @@ module X where
It is not recommended to move all the contents of your
Makefiles into your source files, but in some circumstances, the
OPTIONS_GHC pragma is the Right Thing. (If you
- use and have OPTION flags in
+ use and have OPTION flags in
your module, the OPTIONS_GHC will get put into the generated .hc
file).
@@ -104,8 +104,8 @@ module X where
modeoptions
- Each of GHC's command line options is classified as either
- static or dynamic or
+ Each of GHC's command line options is classified as
+ static, dynamic or
mode:
@@ -113,7 +113,7 @@ module X where
Mode flagsFor example, or .
- There may be only a single mode flag on the command line. The
+ There may only be a single mode flag on the command line. The
available modes are listed in .
@@ -848,6 +848,7 @@ ghc -c Foo.hs
+
@@ -914,6 +915,31 @@ ghc -c Foo.hs
+ :
+
+
+ implicit prelude, warning
+ Have the compiler warn if the Prelude is implicitly
+ imported. This happens unless either the Prelude module is
+ explicitly imported with an import ... Prelude ...
+ line, or this implicit import is disabled (either by
+ or a
+ LANGUAGE NoImplicitPrelude pragma).
+
+ Note that no warning is given for syntax that implicitly
+ refers to the Prelude, even if
+ would change whether it refers to the Prelude.
+ For example, no warning is given when
+ 368 means
+ Prelude.fromInteger (368::Prelude.Integer)
+ (where Prelude refers to the actual Prelude module,
+ regardless of the imports of the module being compiled).
+
+ This warning is off by default.
+
+
+
+ :
@@ -1250,7 +1276,7 @@ f "2" = 2
Note that higher optimisation levels cause more
cross-module optimisation to be performed, which can have an
impact on how much of your program needs to be recompiled when
- you change something. This is one reaosn to stick to
+ you change something. This is one reason to stick to
no-optimisation when developing code.
@@ -1459,6 +1485,50 @@ f "2" = 2
+
+
+
+
+ Turn off the "state hack" whereby any lambda with a
+ State# token as argument is considered to be
+ single-entry, hence it is considered OK to inline things inside
+ it. This can improve performance of IO and ST monad code, but it
+ runs the risk of reducing sharing.
+
+
+
+
+
+
+
+
+
+ Tells GHC to omit all inessential information from the interface file
+ generated for the module being compiled (say M). This means that a module
+ importing M will see only the types of the functions that M exports, but not
+ their unfoldings, strictness info, etc. Hence, for example,
+ no function exported by M will be inlined
+ into an importing module. The benefit is that modules that import M will
+ need to be recompiled less often (only when M's exports change their type,
+ not when they change their implementation).
+
+
+
+
+
+
+
+
+
+
+ Tells GHC to ignore all inessential information when reading interface files.
+ That is, even if M.hi contains unfolding or strictness information
+ for a function, GHC will ignore that information.
+
+
+
+
+
:
strict constructor fields
@@ -1481,7 +1551,7 @@ f "2" = 2
-
+
@@ -1499,7 +1569,7 @@ f "2" = 2
- :
+ :
inlining, controllingunfolding, controlling
@@ -1525,7 +1595,7 @@ f "2" = 2
- :
+ inlining, controlling