• rubikitch ruby-lang.org (144/144) Mar 10 2007 I just released dxmp, code annotator for D.

rubikitch ruby-lang.org writes:

I just released dxmp, code annotator for D.
It is D port of Ruby's xmpfilter.

http://www.dsource.org/projects/dxmp/

$ build dxmp
Files are up to date, no build required.
$ cat simple.rb



$ xmpfilter simple.rb



$ cat simple.d
// Example of D's dxmp
int main(char[][] argv) {
    1+1;                        // =>
    "aa".length;                // =>
    return 0;
}
$ ./dxmp simple.d
// Example of D's dxmp
int main(char[][] argv) {
    cast(void)(1+1);                        // => 2
    cast(void)("aa".length);                // => 2
    return 0;
}
$ cat dxmp_testcases.d
private import std.stdio;
private import std.cstream;
int main(char[][] argv) {
  version(assert_error) assert(0);
  version(switch_error) switch_error();
  version(array_warning) array_warning();
  version(not_reachable) not_reachable();
  version(undefined) undefined();
  version(print) print();
  version(annotate) annotate();
  return 0;
}

version(switch_error)
void switch_error() {
  int x = 1;
  switch(x) {
  case 0:
    writefln(0);
    break;
    /*  no default */
  }
}

version(array_warning)
char array_warning() {
  static char[10] a;
  int length = 4;
  return a[length - 1];
}

version(not_reachable)
int not_reachable() {
  return 1;
  return 2;
}

version(undefined)
void undefined() {
  x();
}

version(print)
void print() {
  writefln("print");
}

version(annotate)
void annotate() {
  cast(void)(1+1);              // =>
  10+10;                        // =>
}
$ rdmd -version=assert_error dxmp_testcases.d
Error: AssertError Failure dxmp_testcases(4) 
$ rdmd -version=switch_error dxmp_testcases.d
Error: Switch Default dxmp_testcases(17)
$ rdmd -w -version=array_warning dxmp_testcases.d 
warning - Error: array 'length' hides other 'length' name in outer scope
rdmd: Couldn't compile or execute dxmp_testcases.d.
$ rdmd -w -version=not_reachable dxmp_testcases.d
warning - dxmp_testcases.d(35): Error: statement is not reachable
rdmd: Couldn't compile or execute dxmp_testcases.d.
$ rdmd  -version=undefined dxmp_testcases.d
dxmp_testcases.d(40): Error: undefined identifier x
dxmp_testcases.d(40): Error: function expected before (), not x of type int
rdmd: Couldn't compile or execute dxmp_testcases.d.
$ ./dxmp dxmp_testcases.d -version=annotate | grep -5 '// =>'
  writefln("print");
}

version(annotate)
void annotate() {
  cast(void)(1+1);              // => 2
  cast(void)(10+10);                        // => 20
}
$ ./dxmp dxmp_testcases.d -version=assert_error | grep -5 '// !>'
private import std.stdio;
private import std.cstream;
int main(char[][] argv) {
  version(assert_error) assert(0); // !> AssertError Failure
  version(switch_error) switch_error();
  version(array_warning) array_warning();
  version(not_reachable) not_reachable();
  version(undefined) undefined();
  version(print) print();
$ ./dxmp dxmp_testcases.d -version=switch_error | grep -5 '// !>'
}

version(switch_error)
void switch_error() {
  int x = 1;
  switch(x) { // !> Switch Default
  case 0:
    writefln(0);
    break;
    /*  no default */
  }
$ ./dxmp dxmp_testcases.d -w -version=array_warning | grep -5 '// ~>'
version(annotate)
void annotate() {


}
// ~> warning - Error: array 'length' hides other 'length' name in outer scope
// ~> rdmd: Couldn't compile or execute dxmp_testcases.d.
$ ./dxmp dxmp_testcases.d -version=print | grep -5 '// >>'
version(annotate)
void annotate() {


}
// >> print
$ ./dxmp dxmp_testcases.d -w -version=not_reachable | grep -5 '// ~>'
version(annotate)
void annotate() {


}
// ~> warning - dxmp_testcases.d(35): Error: statement is not reachable
// ~> rdmd: Couldn't compile or execute dxmp_testcases.d.
$ ./dxmp dxmp_testcases.d -version=undefined | grep -5 '// ~>'
version(annotate)
void annotate() {


}
// ~> dxmp_testcases.d(40): Error: undefined identifier x
// ~> dxmp_testcases.d(40): Error: function expected before (), not x of type
int
// ~> rdmd: Couldn't compile or execute dxmp_testcases.d.

--
rubikitch
http://www.rubyist.net/~rubikitch/