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view gen/utils.h @ 1511:5b66008246bb
Implement equality comparison for associative arrays. The semantics aren't in
the spec, but DMD does a simple pointer comparison. Complaints about this go to
http://d.puremagic.com/issues/show_bug.cgi?id=1429 :P.
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Sun, 21 Jun 2009 00:12:29 +0200 |
parents | ec1d9dc1d32a |
children |
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#ifndef __LDC_GEN_UTILS_H__ #define __LDC_GEN_UTILS_H__ #include "root.h" /// Very simple templated iterator for DMD ArrayS. template<class C> struct ArrayIter { Array* array; size_t index; ArrayIter(Array& arr, size_t idx = 0) : array(&arr), index(idx) { } ArrayIter(Array* arr, size_t idx = 0) : array(arr), index(idx) { assert(arr && "null array"); } ArrayIter<C>& operator=(const Array& arr) { array = &arr; index = 0; return *this; } ArrayIter<C>& operator=(const Array* arr) { assert(arr && "null array"); array = arr; index = 0; return *this; } bool done() { return index >= array->dim; } bool more() { return index < array->dim; } C* get() { return static_cast<C*>(array->data[index]); } C* operator->() { return get(); } C* operator*() { return get(); } void next() { ++index; } bool operator==(const ArrayIter<C>& other) { return &array->data[index] == &other.array->data[other.index]; } }; // some aliases typedef ArrayIter<Dsymbol> DsymbolIter; typedef ArrayIter<FuncDeclaration> FuncDeclarationIter; typedef ArrayIter<VarDeclaration> VarDeclarationIter; #endif