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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef T_GLOBALS_H
+#define T_GLOBALS_H
+
+#include <set>
+#include <queue>
+#include <stack>
+#include <vector>
+#include <string>
+
+/**
+ * This module contains all the global variables (slap on the wrist) that are
+ * shared throughout the program. The reason for this is to facilitate simple
+ * interaction between the parser and the rest of the program. Before calling
+ * yyparse(), the main.cc program will make necessary adjustments to these
+ * global variables such that the parser does the right thing and puts entries
+ * into the right containers, etc.
+ *
+ */
+
+/**
+ * Hooray for forward declaration of types!
+ */
+
+class t_program;
+class t_scope;
+class t_type;
+
+/**
+ * Parsing mode, two passes up in this gin rummy!
+ */
+
+enum PARSE_MODE { INCLUDES = 1, PROGRAM = 2 };
+
+/**
+ * Strictness level
+ */
+extern int g_strict;
+
+/**
+ * The master program parse tree. This is accessed from within the parser code
+ * to build up the program elements.
+ */
+extern t_program* g_program;
+
+/**
+ * The scope that we are currently parsing into
+ */
+extern t_scope* g_scope;
+
+/**
+ * The parent scope to also load symbols into
+ */
+extern t_scope* g_parent_scope;
+
+/**
+ * The prefix for the parent scope entries
+ */
+extern std::string g_parent_prefix;
+
+/**
+ * The parsing pass that we are on. We do different things on each pass.
+ */
+extern PARSE_MODE g_parse_mode;
+
+/**
+ * Global time string, used in formatting error messages etc.
+ */
+extern char* g_time_str;
+
+/**
+ * The last parsed doctext comment.
+ */
+extern char* g_doctext;
+
+/**
+ * The location of the last parsed doctext comment.
+ */
+extern int g_doctext_lineno;
+
+/**
+ * Status of program level doctext candidate
+ */
+enum PROGDOCTEXT_STATUS {
+ INVALID = 0,
+ STILL_CANDIDATE = 1, // the text may or may not be the program doctext
+ ALREADY_PROCESSED = 2, // doctext has been used and is no longer available
+ ABSOLUTELY_SURE = 3, // this is the program doctext
+ NO_PROGRAM_DOCTEXT = 4 // there is no program doctext
+};
+
+/**
+ * The program level doctext. Stored separately to make parsing easier.
+ */
+extern char* g_program_doctext_candidate;
+extern int g_program_doctext_lineno;
+extern PROGDOCTEXT_STATUS g_program_doctext_status;
+
+/**
+ * Whether or not negative field keys are accepted.
+ *
+ * When a field does not have a user-specified key, thrift automatically
+ * assigns a negative value. However, this is fragile since changes to the
+ * file may unintentionally change the key numbering, resulting in a new
+ * protocol that is not backwards compatible.
+ *
+ * When g_allow_neg_field_keys is enabled, users can explicitly specify
+ * negative keys. This way they can write a .thrift file with explicitly
+ * specified keys that is still backwards compatible with older .thrift files
+ * that did not specify key values.
+ */
+extern int g_allow_neg_field_keys;
+
+/**
+ * Whether or not 64-bit constants will generate a warning.
+ *
+ * Some languages don't support 64-bit constants, but many do, so we can
+ * suppress this warning for projects that don't use any non-64-bit-safe
+ * languages.
+ */
+extern int g_allow_64bit_consts;
+
+#endif