mirror of https://gitee.com/bigwinds/arangodb
150 lines
5.1 KiB
C
150 lines
5.1 KiB
C
////////////////////////////////////////////////////////////////////////////////
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/// @brief Ahuacatl, AST to JS code generator
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2010-2012 triagens GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is triAGENS GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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/// @author Copyright 2012, triagens GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#ifndef TRIAGENS_DURHAM_AHUACATL_CODEGEN_JS_H
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#define TRIAGENS_DURHAM_AHUACATL_CODEGEN_JS_H 1
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#include <BasicsC/common.h>
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#include <BasicsC/associative.h>
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#include <BasicsC/conversions.h>
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#include <BasicsC/strings.h>
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#include <BasicsC/string-buffer.h>
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#include <BasicsC/vector.h>
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#include "Ahuacatl/ahuacatl-ast-node.h"
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#include "Ahuacatl/ahuacatl-conversions.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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// -----------------------------------------------------------------------------
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// --SECTION-- public types
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup Ahuacatl
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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/// @brief typedef for a variable or function register number
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////////////////////////////////////////////////////////////////////////////////
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typedef uint32_t TRI_aql_codegen_register_t;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief scope types used by the code generator
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////////////////////////////////////////////////////////////////////////////////
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typedef enum {
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TRI_AQL_SCOPE_MAIN,
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TRI_AQL_SCOPE_LET,
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TRI_AQL_SCOPE_FOR,
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TRI_AQL_SCOPE_FOR_NESTED,
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TRI_AQL_SCOPE_FUNCTION,
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TRI_AQL_SCOPE_EXPAND
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}
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TRI_aql_codegen_scope_e;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief variable (name + register index) type used by code generator
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////////////////////////////////////////////////////////////////////////////////
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typedef struct TRI_aql_codegen_variable_s {
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char* _name;
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TRI_aql_codegen_register_t _register;
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}
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TRI_aql_codegen_variable_t;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief code generator scope
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////////////////////////////////////////////////////////////////////////////////
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typedef struct TRI_aql_codegen_scope_s {
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TRI_string_buffer_t* _buffer;
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TRI_aql_codegen_scope_e _type;
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TRI_aql_codegen_register_t _listRegister;
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TRI_aql_codegen_register_t _keyRegister;
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TRI_aql_codegen_register_t _ownRegister;
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TRI_aql_codegen_register_t _resultRegister;
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TRI_associative_pointer_t _variables;
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const char* _variableName;
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const char* _name;
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char* _prefix; // prefix for variable names
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}
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TRI_aql_codegen_scope_t;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief code generator
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////////////////////////////////////////////////////////////////////////////////
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typedef struct TRI_aql_codegen_js_s {
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TRI_string_buffer_t _buffer;
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TRI_string_buffer_t _functionBuffer;
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TRI_vector_pointer_t _scopes;
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size_t _registerIndex;
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size_t _functionIndex;
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bool _error;
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}
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TRI_aql_codegen_js_t;
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////////////////////////////////////////////////////////////////////////////////
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/// @}
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////////////////////////////////////////////////////////////////////////////////
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// -----------------------------------------------------------------------------
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// --SECTION-- public functions
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup Ahuacatl
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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/// @brief generate Javascript code for the AST nodes recursively
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////////////////////////////////////////////////////////////////////////////////
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char* TRI_GenerateCodeAql (const void* const);
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////////////////////////////////////////////////////////////////////////////////
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/// @}
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////////////////////////////////////////////////////////////////////////////////
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#ifdef __cplusplus
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}
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#endif
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#endif
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// Local Variables:
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// mode: outline-minor
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// outline-regexp: "^\\(/// @brief\\|/// {@inheritDoc}\\|/// @addtogroup\\|// --SECTION--\\|/// @\\}\\)"
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// End:
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