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view lphobos/std/array.d @ 1499:df11cdec45a2
Another shot at fixing the issues with (constant) struct literals and their addresses. See DMD2682, #218, #324.
The idea is to separate the notion of const from 'this variable can always be
replaced with its initializer' in the frontend. To do that, I introduced
Declaration::isSameAsInitializer, which is overridden in VarDeclaration to
return false for constants that have a struct literal initializer.
So
{{{
const S s = S(5);
void foo() { auto ps = &s; }
// is no longer replaced by
void foo() { auto ps = &(S(5)); }
}}}
To make taking the address of a struct constant with a struct-initializer
outside of function scope possible, I made sure that AddrExp::optimize doesn't
try to run the argument's optimization with WANTinterpret - that'd again
replace the constant with a struct literal temporary.
author | Christian Kamm <kamm incasoftware de> |
---|---|
date | Sun, 14 Jun 2009 19:49:58 +0200 |
parents | fd32135dca3e |
children |
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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; }