| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SRC_DEVELOPER_DEBUG_ZXDB_EXPR_RESOLVE_ARRAY_H_ |
| #define SRC_DEVELOPER_DEBUG_ZXDB_EXPR_RESOLVE_ARRAY_H_ |
| |
| #include <vector> |
| |
| #include "lib/fit/function.h" |
| #include "src/developer/debug/zxdb/expr/eval_callback.h" |
| #include "src/developer/debug/zxdb/expr/expr_value.h" |
| #include "src/lib/fxl/memory/ref_ptr.h" |
| |
| namespace zxdb { |
| |
| class Err; |
| class Type; |
| class EvalContext; |
| |
| // Converts the given array type (could be a pointer or a static array type like "int[4]") to |
| // a vector of ExprValues. Since this requires memory fetches is must be asynchronous. |
| // |
| // The input will be clipped to the array size so the result may be empty or smaller than requested. |
| // |
| // This does not apply pretty types for item resolution. |
| void ResolveArray(const fxl::RefPtr<EvalContext>& eval_context, const ExprValue& array, |
| size_t begin_index, size_t end_index, fit::callback<void(ErrOrValueVector)>); |
| |
| // Resolves a single item in an array and applies pretty types for item resolution. This is the |
| // backend for array access [ <number> ] in expressions. |
| void ResolveArrayItem(const fxl::RefPtr<EvalContext>& eval_context, const ExprValue& array, |
| size_t index, EvalCallback cb); |
| |
| // Forces an array to one of a different size. |
| // |
| // Converts a pointer to a static array of the given size by fetching the corresponding memory. |
| // |
| // Converts a static array's type to represent the new size. For example, resizing an array of |
| // type "double[16]" to length 8 will copy the data and the new type will be "double[8]". To |
| // support expanding the length of a static array, the memory will be fetched according to the |
| // source of the static array (if there is no memory as the source of the array it will fail). |
| void CoerceArraySize(const fxl::RefPtr<EvalContext>& eval_context, const ExprValue& array, |
| size_t new_size, EvalCallback cb); |
| |
| } // namespace zxdb |
| |
| #endif // SRC_DEVELOPER_DEBUG_ZXDB_EXPR_RESOLVE_ARRAY_H_ |