| /* |
| * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef SHARE_VM_COMPILER_DIRECTIVESPARSER_HPP |
| #define SHARE_VM_COMPILER_DIRECTIVESPARSER_HPP |
| |
| #include "utilities/json.hpp" |
| #include "compiler/compilerDirectives.hpp" |
| |
| enum FlagType { |
| boolFlag, |
| intxFlag, |
| uintxFlag, |
| doubleFlag, |
| ccstrFlag, |
| ccstrlistFlag, |
| UnknownFlagType |
| }; |
| |
| static const char* flag_type_names[] = { |
| "bool", |
| "int", |
| "uint", |
| "double", |
| "string", |
| "string list", |
| "unknown" |
| }; |
| |
| class DirectivesParser : public JSON { |
| public: |
| static bool has_file(); |
| static bool parse_from_flag(); |
| static bool parse_from_file(const char* filename, outputStream* st); |
| static int parse_string(const char* string, outputStream* st); |
| int install_directives(); |
| |
| private: |
| DirectivesParser(const char* text, outputStream* st, bool silent); |
| ~DirectivesParser(); |
| |
| bool callback(JSON_TYPE t, JSON_VAL* v, uint level); |
| static bool parse_from_file_inner(const char* filename, outputStream* st); |
| |
| // types of "keys". i.e recognized <key>:<value> pairs in our JSON syntax |
| typedef enum { |
| type_c1, |
| type_c2, |
| type_enable, |
| type_preset, |
| type_match, |
| type_inline, |
| |
| // After here, there is no correlation between |
| // keytype and keys array |
| //type_strategy, |
| type_flag, |
| //type_dir, |
| |
| // Synthetic. |
| type_dir_array, |
| type_directives, |
| type_value_array |
| } keytype; |
| |
| // name, type, dtd info and maybe a setter |
| // this is how we map key-values |
| typedef struct { |
| const char *name; |
| keytype type; |
| uint allow_array_value : 1; |
| uint allowedmask; |
| void (DirectiveSet::*set)(void* arg); |
| FlagType flag_type; |
| } key; |
| |
| // Array with valid keys for the directive file |
| static const key keys[]; |
| // Marker for outermost moosewings/array |
| static const key dir_array_key; |
| // Marker for a directives set (these are "implicit" objects, as in not named) |
| static const key dir_key; |
| // Marker for a multi value |
| static const key value_array_key; |
| |
| // A compiler directive shouldn't be able to use more than 5 stack slots. |
| // Example of max stack usage: |
| // depth 1: type_dir_array [ |
| // depth 2: type_directives { |
| // depth 3: type_c1 c1: { |
| // depth 4: type_inline inline: |
| // depth 5: type_value_array [ ... |
| static const uint MAX_DEPTH = 5; |
| const key* stack[MAX_DEPTH]; |
| uint depth; |
| |
| bool push_key(const char* str, size_t len); |
| bool push_key(const key* k); |
| const key* current_key(); |
| const key* pop_key(); |
| static const key* lookup_key(const char* s, size_t len); |
| |
| bool set_option(JSON_TYPE t, JSON_VAL* v); |
| bool set_option_flag(JSON_TYPE t, JSON_VAL* v, const key* option_key, DirectiveSet* set); |
| |
| CompilerDirectives* current_directive; |
| DirectiveSet* current_directiveset; |
| |
| void push_tmp(CompilerDirectives* dir); |
| void clean_tmp(); |
| CompilerDirectives* pop_tmp(); |
| CompilerDirectives* _tmp_top; // temporary storage for dirs while parsing |
| int _tmp_depth; // Number of directives that has been parsed but not installed. |
| |
| static uint mask(keytype kt); |
| |
| #ifndef PRODUCT |
| static void test(const char* json, bool valid); |
| public: |
| static void test(); |
| #endif |
| }; |
| |
| #endif // SHARE_VM_COMPILER_DIRECTIVESPARSER_HPP |