mattdee123

Overall, the proposal seems great. However, one of the things I love about go is that the error type is not special (other than the fact that it doesn't require importing). This proposal seems to special-case the error type, adding extra barriers to defining ones own error types.

As an example, I was building an interpreter, and I wanted all of my parser's error messages to have a file position (line/column number) on them. By defining a new type,

type PosError interface{
  error
  Pos() FilePos
}

and making all of my functions return it, the compiler is able to remind me where I need to add a file position, since if I don't, typechecking will fail.

mattdee123

## arrow up
"\e[A":history-search-backward
## arrow down
"\e[B":history-search-forward

mattdee123

## arrow up
"\e[A":history-search-backward
## arrow down
"\e[B":history-search-forward

mattdee123

from BaseHTTPServer import BaseHTTPRequestHandler,HTTPServer
global counter
counter = 1
class myHandler(BaseHTTPRequestHandler):
    def do_POST(self):
        global counter
        print "GOT POST"
        print type(self.rfile)
        g = open("tests/" + str(counter) + "test.jpg", "wb")
        counter += 1

mattdee123

        function s = tex(m)
            s = '\bm ';
            for r = 1:size(m,1)
                for c =1:size(m,2)
                    delim = '&';
                    if (c == size(m,2))
                        delim = '';
                    end
                    s = [s, K.asStr(m(r,c)), delim];
                end

mattdee123

[12:21:08] matt: ~/p2/build make
[  4%] Building CXX object application/CMakeFiles/application.dir/application.cpp.o
In file included from /home/matt/p2/src/scene/scene.hpp:12:0,
                 from /home/matt/p2/src/application/application.hpp:12,
                 from /home/matt/p2/src/application/application.cpp:8:
/home/matt/p2/src/math/vector.hpp: In member function ‘const real_t& _462::Vector2::operator[](size_t) const’:
/home/matt/p2/src/math/vector.hpp:135:9: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]
/home/matt/p2/src/math/vector.hpp: In member function ‘_462::real_t& _462::Vector2::operator[](size_t)’:
/home/matt/p2/src/math/vector.hpp:144:9: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]
/home/matt/p2/src/math/vector.hpp: In member function ‘const real_t& _462::Vector3::operator[](size_t) const’:

mattdee123

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>wiki-graph</groupId>
  <artifactId>wiki-graph</artifactId>
  <version>1.0-SNAPSHOT</version>
  <dependencies>