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| author | Jannis Harder <me@jix.one> | 2022-12-23 16:52:52 +0100 |
|---|---|---|
| committer | Jannis Harder <me@jix.one> | 2023-01-11 18:07:16 +0100 |
| commit | 29461ade177eb3dfb2ba5714c4a6bf365b09a24e (patch) | |
| tree | 52e4cca86ab00f670e924433763dffeb1f74bc1f /kernel/json.h | |
| parent | dda972a148aea9f422c04c6351a21f882741e6c6 (diff) | |
| download | yosys-29461ade177eb3dfb2ba5714c4a6bf365b09a24e.tar.gz yosys-29461ade177eb3dfb2ba5714c4a6bf365b09a24e.tar.bz2 yosys-29461ade177eb3dfb2ba5714c4a6bf365b09a24e.zip | |
Add json.{h,cc} for pretty printing JSON
Avoids errors in trailing comma handling, broken indentation and
improper escaping that is common when building JSON by manually
concatenating strings.
Diffstat (limited to 'kernel/json.h')
| -rw-r--r-- | kernel/json.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/kernel/json.h b/kernel/json.h new file mode 100644 index 000000000..3ba355327 --- /dev/null +++ b/kernel/json.h @@ -0,0 +1,93 @@ +/* + * yosys -- Yosys Open SYnthesis Suite + * + * Copyright (C) 2022 Jannis Harder <jix@yosyshq.com> <me@jix.one> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#ifndef JSON_H +#define JSON_H + +#include "kernel/yosys.h" +#include "libs/json11/json11.hpp" +#include <functional> + +YOSYS_NAMESPACE_BEGIN + +using json11::Json; + +class PrettyJson +{ + enum Scope { + VALUE, + OBJECT_FIRST, + OBJECT, + ARRAY_FIRST, + ARRAY, + }; + + std::string newline_indent = "\n"; + std::vector<std::function<void(const char *)>> targets; + std::vector<Scope> state = {VALUE}; +public: + + void emit_to_log(); + void append_to_string(std::string &target); + + bool active() { return !targets.empty(); } + + void line(); + void raw(const char *raw_json); + void begin_object(); + void begin_array(); + void end_object(); + void end_array(); + void name(const char *name); + void begin_value(); + void end_value(); + void value_json(const Json &value); + void value(unsigned int value) { value_json(Json((int)value)); } + template<typename T> + void value(T &&value) { value_json(Json(std::forward<T>(value))); }; + + void entry_json(const char *name, const Json &value); + void entry(const char *name, unsigned int value) { entry_json(name, Json((int)value)); } + template<typename T> + void entry(const char *name, T &&value) { entry_json(name, Json(std::forward<T>(value))); }; + + template<typename T> + void object(const T &&values) + { + begin_object(); + for (auto &item : values) + entry(item.first, item.second); + end_object(); + } + + template<typename T> + void array(const T &&values) + { + begin_object(); + for (auto &item : values) + value(item); + end_object(); + } +}; + + + +YOSYS_NAMESPACE_END + +#endif |