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0a96aea868
1. Main include corresponding to .cpp file, if any. 2. DMD and LDC includes. 3. LLVM includes. 4. System includes. Also updated a few include guards to match the default format.
81 lines
1.8 KiB
C++
81 lines
1.8 KiB
C++
//===-- gen/utils.h - Utilities for handling frontend types -----*- C++ -*-===//
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//
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// LDC – the LLVM D compiler
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//
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// This file is distributed under the BSD-style LDC license. See the LICENSE
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// file for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Some utilities for handling front-end types in a more C++-like fashion.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LDC_GEN_UTILS_H
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#define LDC_GEN_UTILS_H
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#include "root.h"
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/// Very simple templated iterator for DMD ArrayS.
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template<class C>
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struct ArrayIter
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{
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Array* array;
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size_t index;
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ArrayIter(Array& arr, size_t idx = 0)
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: array(&arr), index(idx)
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{ }
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ArrayIter(Array* arr, size_t idx = 0)
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: array(arr), index(idx)
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{ assert(arr && "null array"); }
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ArrayIter<C>& operator=(const Array& arr)
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{
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array = const_cast<Array*>(&arr);
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index = 0;
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return *this;
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}
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ArrayIter<C>& operator=(const Array* arr)
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{
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assert(arr && "null array");
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array = const_cast<Array*>(arr);
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index = 0;
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return *this;
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}
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bool done()
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{
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return index >= array->dim;
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}
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bool more()
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{
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return index < array->dim;
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}
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C* get() {
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return static_cast<C*>(array->data[index]);
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}
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C* operator->() {
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return get();
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}
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C* operator*() {
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return get();
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}
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void next()
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{
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++index;
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}
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bool operator==(const ArrayIter<C>& other) {
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return &array->data[index] == &other.array->data[other.index];
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}
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};
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// some aliases
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typedef ArrayIter<Dsymbol> DsymbolIter;
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typedef ArrayIter<FuncDeclaration> FuncDeclarationIter;
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typedef ArrayIter<VarDeclaration> VarDeclarationIter;
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#endif
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