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Russ Cox 2009-11-07 17:31:22 -08:00
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@ -14,7 +14,7 @@ the computing landscape has changed tremendously. There are several trends:
Computers are enormously quicker but software development is not faster. Computers are enormously quicker but software development is not faster.
<li> <li>
Dependency management is a big part of software development today but the Dependency management is a big part of software development today but the
"header files" of languages in the C tradition are antithetical to clean &ldquo;header files&rdquo; of languages in the C tradition are antithetical to clean
dependency analysis&mdash;and fast compilation. dependency analysis&mdash;and fast compilation.
<li> <li>
There is a growing rebellion against cumbersome type systems like those of There is a growing rebellion against cumbersome type systems like those of
@ -54,7 +54,7 @@ software on multicore machines.
What is the origin of the name?</h3> What is the origin of the name?</h3>
<p> <p>
"Ogle" would be a good name for a Go debugger. &ldquo;Ogle&rdquo; would be a good name for a Go debugger.
<h3 id="What_kind_of_a_name_is_6g"> <h3 id="What_kind_of_a_name_is_6g">
What kind of a name is 6g?</h3> What kind of a name is 6g?</h3>
@ -62,7 +62,7 @@ What kind of a name is 6g?</h3>
<p> <p>
The <code>6g</code> (and <code>8g</code> and <code>5g</code>) compiler is named in the The <code>6g</code> (and <code>8g</code> and <code>5g</code>) compiler is named in the
tradition of the Plan 9 C compilers, described in tradition of the Plan 9 C compilers, described in
<a href="http://plan9.bell-labs.com/sys/doc/compiler.html "> <a href="http://plan9.bell-labs.com/sys/doc/compiler.html">
http://plan9.bell-labs.com/sys/doc/compiler.html</a> http://plan9.bell-labs.com/sys/doc/compiler.html</a>
(see the table in section 2). (see the table in section 2).
@ -86,7 +86,7 @@ Who should use the language?</h3>
<p> <p>
Go is an experiment. We hope adventurous users will give it a try and see Go is an experiment. We hope adventurous users will give it a try and see
if they enjoy it. Not every programmer if they enjoy it. Not every programmer
will but we hope enough will find satisfaction in the approach it will, but we hope enough will find satisfaction in the approach it
offers to justify further development. offers to justify further development.
<h3 id="Do_Go_programs_link_with_Cpp_programs"> <h3 id="Do_Go_programs_link_with_Cpp_programs">
@ -103,7 +103,7 @@ C or C++ programs. However, because Go is garbage-collected it will be
unwise to do so, at least naively. unwise to do so, at least naively.
<p> <p>
There is a 'foreign function interface' to allow safe calling of C-written There is a &ldquo;foreign function interface&rdquo; to allow safe calling of C-written
libraries from Go code. We expect to use SWIG to extend this capability libraries from Go code. We expect to use SWIG to extend this capability
to C++ libraries. There is no safe way to call Go code from C or C++ yet. to C++ libraries. There is no safe way to call Go code from C or C++ yet.
@ -150,7 +150,7 @@ Is Go an object-oriented language?</h3>
<p> <p>
Yes and no. Although Go has types and methods and allows an Yes and no. Although Go has types and methods and allows an
object-oriented style of programming, there is no type hierarchy. object-oriented style of programming, there is no type hierarchy.
The concept of "interface" in Go provides a different approach that The concept of &ldquo;interface&rdquo; in Go provides a different approach that
we believe is easy to use and in some ways more general. There are we believe is easy to use and in some ways more general. There are
also ways to embed types in other types to provide something also ways to embed types in other types to provide something
analogous&mdash;but not identical&mdash;to subclassing. analogous&mdash;but not identical&mdash;to subclassing.
@ -159,7 +159,7 @@ they can be defined for any sort of data, not just structs.
<p> <p>
Also, the lack of type hierarchy makes &ldquo;objects&rdquo; in Go feel much more Also, the lack of type hierarchy makes &ldquo;objects&rdquo; in Go feel much more
lightweight than in languages such as C++ and Java. lightweight than in languages such as C++ or Java.
<h3 id="How_do_I_get_dynamic_dispatch_of_methods"> <h3 id="How_do_I_get_dynamic_dispatch_of_methods">
How do I get dynamic dispatch of methods?</h3> How do I get dynamic dispatch of methods?</h3>
@ -326,10 +326,10 @@ How is the runtime implemented?</h3>
<p> <p>
Again due to bootstrapping issues, the runtime is mostly in C (with a Again due to bootstrapping issues, the runtime is mostly in C (with a
tiny bit of assembler) although Go is capable of implementing most of tiny bit of assembler) although Go is capable of implementing most of
it now. <code>Gccgo</code>'s runtime uses <code>glibc</code>; it now. <code>Gccgo</code>'s runtime uses <code>glibc</code>.
<code>Gc</code> uses a custom library, to keep the footprint under <code>Gc</code> uses a custom library, to keep the footprint under
control; it is control; it is
compiled with a version of the Plan 9 C compiler that supports compiled with a version of the Plan 9 C compiler that supports
segmented stacks for goroutines. segmented stacks for goroutines.
work is underway to provide the same stack management in Work is underway to provide the same stack management in
<code>gccgo</code>. <code>gccgo</code>.