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Commit 64beac09 by James A. Morrison
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parse.y (ELSE): Set tok to $1. 

2004-09-28  James A. Morrison  <phython@gcc.gnu.org>

        * parse.y (ELSE): Set tok to $1.
        * treelang.texi: Wrap comments in @r{}.  Indent example comments.
        Use gcc when refering to the command line or website.  Update function
        definition.

From-SVN: r88425
parent 66efeafc
Showing with 41 additions and 31 deletions
gcc/treelang/ChangeLog
2004-10-01 James A. Morrison <phython@gcc.gnu.org>
* parse.y (ELSE): Set tok to $1.
* treelang.texi: Wrap comments in @r{}. Indent example comments.
Use gcc when refering to the command line or website. Update function
definition.
2004-10-01 Jan Hubicka <jh@suse.cz>
* treetree.c (treeland_expand_function): Update call of
......
gcc/treelang/parse.y
......@@ -515,7 +515,7 @@ ELSE {
}
LEFT_BRACE variable_defs_opt statements_opt RIGHT_BRACE {
struct prod_token_parm_item* tok;
tok = $12;
tok = $1;
tree_code_if_end (tok->tp.tok.location);
}
;
......
gcc/treelang/treelang.texi
......@@ -2,7 +2,6 @@
@c NOTE THIS IS NOT A GOOD EXAMPLE OF HOW TO DO A MANUAL. FIXME!!!
@c NOTE THIS IS NOT A GOOD EXAMPLE OF HOW TO DO A MANUAL. FIXME!!!
@c NOTE THIS IS NOT A GOOD EXAMPLE OF HOW TO DO A MANUAL. FIXME!!!
@c %**start of header
......@@ -10,9 +9,9 @@
@include gcc-common.texi
@set version-treelang 1.0
@set version-treelang 2.0
@set last-update 2004-03-21
@set last-update 2004-09-28
@set copyrights-treelang 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
@set email-general gcc@@gcc.gnu.org
......@@ -203,11 +202,6 @@ corresponds to the @value{which-treelang} version of @code{treelang}.
@end ifnottex
@ifset DEVELOPMENT
@emph{Warning:} This document is still under development, and might not
accurately reflect the @code{treelang} code base of which it is a part.
@end ifset
@menu
* Copying::
* Contributors::
......@@ -272,7 +266,8 @@ Reporting Bugs
Treelang was based on 'toy' by Richard Kenner, and also uses code from
the GCC core code tree. Tim Josling first created the language and
documentation, based on the GCC Fortran compiler's documentation
framework.
framework. Treelang was updated to use the TreeSSA infrastructure by James A.
Morrison.
@itemize @bullet
@item
......@@ -290,7 +285,7 @@ It would have been difficult to build treelang without access to Joachim
Nadler's guide to writing a front end to GCC (written in German). A
translation of this document into English is available via the
CobolForGCC project or via the documentation links from the GCC home
page @uref{http://GCC.gnu.org}.
page @uref{http://gcc.gnu.org}.
@end itemize
@include funding.texi
......@@ -309,10 +304,13 @@ language. Therefore only language developers are likely to have an
interest in it.
This manual assumes familiarity with GCC, which you can obtain by using
it and by reading the manual @samp{Using and Porting GCC}.
it and by reading the manuals @samp{Using the GNU Compiler Collection (GCC)}
and @samp{GNU Compiler Collection (GCC) Internals}.
To install treelang, follow the GCC installation instructions,
taking care to ensure you specify treelang in the configure step.
taking care to ensure you specify treelang in the configure step by adding
treelang to the list of languages specified by @option{--enable-langauges},
e.g.@: @samp{--enable-languages=all,treelang}.
If you're generally curious about the future of
@code{treelang}, see @ref{Projects}.
......@@ -345,18 +343,18 @@ The main features missing are structures, arrays and pointers.
A sample program follows:
@example
// function prototypes
// function 'add' taking two ints and returning an int
@smallexample
// @r{function prototypes}
// @r{function 'add' taking two ints and returning an int}
external_definition int add(int arg1, int arg2);
external_definition int subtract(int arg3, int arg4);
external_definition int first_nonzero(int arg5, int arg6);
external_definition int double_plus_one(int arg7);
// function definition
// @r{function definition}
add
@{
// return the sum of arg1 and arg2
// @r{return the sum of arg1 and arg2}
return arg1 + arg2;
@}
......@@ -368,9 +366,11 @@ subtract
double_plus_one
@{
// aaa is a variable, of type integer and allocated at the start of the function
// @r{aaa is a variable, of type integer and allocated at the start of}
// @r{the function}
automatic int aaa;
// set aaa to the value returned from add, when passed arg7 and arg7 as the two parameters
// @r{set aaa to the value returned from add, when passed arg7 and arg7 as}
// @r{the two parameters}
aaa=add(arg7, arg7);
aaa=add(aaa, aaa);
aaa=subtract(subtract(aaa, arg7), arg7) + 1;
......@@ -379,7 +379,7 @@ double_plus_one
first_nonzero
@{
// C-like if statement
// @r{C-like if statement}
if (arg5)
@{
return arg5;
......@@ -389,7 +389,7 @@ first_nonzero
@}
return arg6;
@}
@end example
@end smallexample
@node Lexical Syntax, Parsing Syntax, What is GNU Treelang?, Top
@chapter Lexical Syntax
......@@ -415,7 +415,7 @@ of the line. C style comments (/* */) are not supported. For example,
the assignment below is followed by a not very helpful comment.
@smallexample
x=1; // Set X to 1
x = 1; // @r{Set X to 1}
@end smallexample
@item
......@@ -427,7 +427,8 @@ used to start the statements in a function
@item @}
used to end the statements in a function
@item (
start list of function arguments, or to change the precedence of operators in an expression
start list of function arguments, or to change the precedence of operators in
an expression
@item )
end list or prioritized operators in expression
@item ,
......@@ -494,7 +495,7 @@ file may contain one of more declarations.
declaration: variable declaration OR function prototype OR function declaration
@item
Function Prototype: storage type NAME ( parameter_list )
Function Prototype: storage type NAME ( optional_parameter_list )
@smallexample
static int add (int a, int b)
......@@ -506,10 +507,11 @@ variable_declaration: storage type NAME initial;
Example:
@smallexample
int temp1=1;
int temp1 = 1;
@end smallexample
A variable declaration can be outside a function, or at the start of a function.
A variable declaration can be outside a function, or at the start of a
function.
@item
storage: automatic OR static OR external_reference OR external_definition
......@@ -602,7 +604,7 @@ list of statements may be empty, but both sets of braces and the else must be pr
@smallexample
if (a==b)
@{
// nothing
// @r{nothing}
@}
else
@{
......@@ -623,8 +625,9 @@ be absent, and if the function is not void the expression must be
present.
@item
expression: variable OR integer_constant OR expression+expression OR expression-expression
OR expression==expression OR (expression) OR variable=expression OR function_call
expression: variable OR integer_constant OR expression+expression
OR expression-expression OR expression==expression OR (expression)
OR variable=expression OR function_call
An expression can be a constant or a variable reference or a
function_call. Expressions can be combined as a sum of two expressions
......@@ -890,7 +893,7 @@ the GNU Compiler Collection (GCC)},
for information on the way different languages are handled
by the GCC compiler (@code{gcc}).
You can use this, combined with the output of the @samp{GCC -v x.tree}
You can use this, combined with the output of the @samp{gcc -v x.tree}
command to get the options applicable to treelang. Treelang programs
must end with the suffix @samp{.tree}.
......
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