view lphobos/std/array.d @ 1491:360a8e8eea51

Teach stack promotion to walk the CFG when a potential reuse of an allocation is found to see if it can actually happen instead of just assuming it will. This allows it to catch cases like {{{ int i; Foo f; while (cond(i)) f = new Foo(i++); return f.value; }}} where it previously wouldn't because a phi using the allocation would appear in the condition block to propagate it to the use after the loop.
author Frits van Bommel <fvbommel wxs.nl>
date Thu, 11 Jun 2009 02:04:44 +0200
parents fd32135dca3e
children
line wrap: on
line source


module std.array;

private import std.c.stdio;

class ArrayBoundsError : Error
{
  private:

    uint linnum;
    char[] filename;

  public:
    this(char[] filename, uint linnum)
    {
	this.linnum = linnum;
	this.filename = filename;

	char[] buffer = new char[19 + filename.length + linnum.sizeof * 3 + 1];
	int len;
	len = sprintf(buffer.ptr, "ArrayBoundsError %.*s(%u)", filename, linnum);
	super(buffer[0..len]);
    }
}


/********************************************
 * Called by the compiler generated module assert function.
 * Builds an ArrayBoundsError exception and throws it.
 */

extern (C) static void _d_array_bounds(char[] filename, uint line)
{
    //printf("_d_assert(%s, %d)\n", (char *)filename, line);
    ArrayBoundsError a = new ArrayBoundsError(filename, line);
    //printf("assertion %p created\n", a);
    throw a;
}