solidity/libsolc/libsolc.h

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/*
This file is part of solidity.
solidity is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
solidity is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with solidity. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @author Christian <c@ethdev.com>
* @date 2014
* Public compiler API.
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*/
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#pragma once
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#include <stdbool.h>
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#include <stddef.h>
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#ifdef __cplusplus
#define SOLC_NOEXCEPT noexcept
#else
#define SOLC_NOEXCEPT
#endif
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#ifdef __cplusplus
extern "C" {
#endif
/// Callback used to retrieve additional source files or data.
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///
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/// @param _context The readContext passed to solidity_compile. Can be NULL.
/// @param _kind The kind of callback (a string).
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/// @param _data The data for the callback (a string).
/// @param o_contents A pointer to the contents of the file, if found. Allocated via solidity_alloc().
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/// @param o_error A pointer to an error message, if there is one.
///
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/// The file (as well as error) contents that is to be allocated by the callback
/// implementor must use the solidity_alloc() API to allocate its underlying
/// storage. Ownership is then transferred to the compiler which will take care
/// of the deallocation.
///
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/// If the callback is not supported, *o_contents and *o_error must be set to NULL.
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typedef void (*CStyleReadFileCallback)(void* _context, char const* _kind, char const* _data, char** o_contents, char** o_error);
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/// Returns the complete license document.
///
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/// The pointer returned must NOT be freed by the caller.
char const* solidity_license() SOLC_NOEXCEPT;
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/// Returns the compiler version.
///
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/// The pointer returned must NOT be freed by the caller.
char const* solidity_version() SOLC_NOEXCEPT;
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/// Allocates a chunk of memory of @p _size bytes.
///
/// Use this function inside callbacks to allocate data that is to be passed to
/// the compiler. You may use solidity_free() or solidity_reset() to free this
/// memory again but it is not required as the compiler takes ownership for any
/// data passed to it via callbacks.
///
/// This function will return NULL if the requested memory region could not be allocated.
char* solidity_alloc(size_t _size) SOLC_NOEXCEPT;
/// Explicitly frees the memory (@p _data) that was being allocated with solidity_alloc()
/// or returned by a call to solidity_compile().
///
/// Important, this call will abort() in case of any invalid argument being passed to this call.
void solidity_free(char* _data) SOLC_NOEXCEPT;
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/// Takes a "Standard Input JSON" and an optional callback (can be set to null). Returns
/// a "Standard Output JSON". Both are to be UTF-8 encoded.
///
/// @param _input The input JSON to process.
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/// @param _readCallback The optional callback pointer. Can be NULL, but if not NULL,
/// it can be called by the compiler to request additional input.
/// Please see the documentation of the type for details.
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/// @param _readContext An optional context pointer passed to _readCallback. Can be NULL.
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///
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/// @returns A pointer to the result. The pointer returned must be freed by the caller using solidity_free() or solidity_reset().
char* solidity_compile(char const* _input, CStyleReadFileCallback _readCallback, void* _readContext) SOLC_NOEXCEPT;
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/// Frees up any allocated memory.
///
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/// NOTE: the pointer returned by solidity_compile as well as any other pointer retrieved via solidity_alloc()
/// is invalid after calling this!
void solidity_reset() SOLC_NOEXCEPT;
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#ifdef __cplusplus
}
#endif