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annotate anagram/guisupport/dc.cpp @ 21:1c9dac05d040

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Add lint-style FALLTHROUGH annotations to fallthrough cases. (in the parse engine and thus the output code) Document this, because the old output causes warnings with gcc10.
author David A. Holland
date Mon, 13 Jun 2022 00:04:38 -0400
parents 13d2b8934445
children
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1 /*
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2 * AnaGram, A System for Syntax Directed Programming
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3 * Copyright 1993-2002 Parsifal Software. All Rights Reserved.
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4 * See the file COPYING for license and usage terms.
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5 *
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6 * dc.cpp - display contexts
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7 */
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8
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9 #include "assert.h"
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10 #include "dc.h"
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11 #include "myalloc.h"
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12 #include "stacks.h"
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13 #include "wdata.h"
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14 #include "wm1.h"
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15
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16 //#define INCLUDE_LOGGING
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17 #include "log.h"
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18
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19
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20 static int dcsCreated = 0;
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21 static int dcsDestroyed = 0;
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22
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23
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24 ////////////////////////////////////////////////////////////
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25 //
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26 // dc methods
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27
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28 void dc::init_dc(void) {
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29 LOGSECTION("dc::init");
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30 LOGV((int) this) LCV(head_title) LCV(foot_title);
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31 id = this;
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32 clear_data();
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33 des = ZALLOCATE(1, wd);
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34
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35 tab_stops = NULL;
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36 syntax_dependent = 1;
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37 dcsCreated++;
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38 }
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39
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40 void dc::clear_data(void) {
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41 LOGSECTION("dc::clear_data");
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42 usage_count = 0;
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43 tab_stops = NULL;
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44 syntax_dependent = 1;
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45 }
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46
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47 dc::dc(void)
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48 : head_title()
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49 , foot_title()
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50 , windowConnector(0)
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51 {
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52 init_dc();
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53 }
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54
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55 dc::dc(const AgString head)
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56 : head_title(head)
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57 , foot_title()
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58 , windowConnector(0)
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59 {
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60 init_dc();
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61 }
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62
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63 dc::dc(const AgString head, const AgString foot)
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64 : head_title(head)
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65 , foot_title(foot)
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66 , windowConnector(0)
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67 {
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68 init_dc();
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69 }
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70
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71 dc::dc(dc &x)
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72 : head_title(x.head_title)
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73 , foot_title(x.foot_title)
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74 , windowConnector(0)
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75 {
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76 id = this;
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77 des = ZALLOCATE(1,wd);
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78 *des = *x.des;
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79 syntax_dependent = x.syntax_dependent;
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80 tab_stops = x.tab_stops;
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81 columnHeadTitle = x.columnHeadTitle;
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82 usage_count = 0;
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83 dcsCreated++;
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84 }
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85
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86 dc::~dc(void) {
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87 LOGSECTION("dc::~dc");
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88 LOGV(head_title) LCV(foot_title);
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89 assert(this == id && usage_count == 0);
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90 ok_ptr(this);
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91 ok_ptr(des);
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92 //if (windowConnector) delete windowConnector;
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93 DEALLOCATE(des);
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94 dcsDestroyed++;
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95 }
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96
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97 AgString dc::findHelpTopic() { return AgString(); }
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98
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99 #define CURSOR windowConnector->getCursorLine()
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100
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101 void dc::anomaly_trace() { pop_up_window(anomaly_trace (CURSOR)); }
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102 void dc::aux_trace() { pop_up_window(aux_trace (CURSOR)); }
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103 void dc::derive_rule() { pop_up_window(derive_rule (CURSOR)); }
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104 void dc::derive_token() { pop_up_window(derive_token (CURSOR)); }
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105 void dc::expansion_chain() { pop_up_window(expansion_chain (CURSOR)); }
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106 void dc::expansion_rules() { pop_up_window(expansion_rules (CURSOR)); }
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107 void dc::keywords() { pop_up_window(keywords (CURSOR)); }
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108 void dc::partition_sets() { pop_up_window(partition_sets (CURSOR)); }
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109 void dc::previous_states() { pop_up_window(previous_states (CURSOR)); }
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110 void dc::problem_states() { pop_up_window(problem_states (CURSOR)); }
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111 void dc::productions() { pop_up_window(productions (CURSOR)); }
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112
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113 void dc::reduction_states() { pop_up_window(reduction_states(CURSOR)); }
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114 void dc::reduction_trace() { pop_up_window(reduction_trace (CURSOR)); }
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115 void dc::rule_context() { pop_up_window(rule_context (CURSOR)); }
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116 //void dc::rule_stack() { pop_up_window(rule_stack (CURSOR)); }
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117 void dc::select_conflict() { pop_up_window(select_conflict (CURSOR)); }
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118 void dc::set_elements() { pop_up_window(set_elements (CURSOR)); }
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119 void dc::state_definition() { pop_up_window(state_definition(CURSOR)); }
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120 void dc::state_expansion() { pop_up_window(state_expansion (CURSOR)); }
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121 void dc::usage() { pop_up_window(usage (CURSOR)); }
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122
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123 int dc::derive_rule_ok() { return derive_rule_ok (CURSOR); }
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124 int dc::expansion_chain_ok() { return expansion_chain_ok (CURSOR); }
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125
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126 int dc::expansion_rules_ok() { return expansion_rules_ok (CURSOR); }
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127
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128 int dc::keywords_ok() { return keywords_ok (CURSOR); }
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129 int dc::previous_states_ok() { return previous_states_ok (CURSOR); }
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130 int dc::productions_ok() { return productions_ok (CURSOR); }
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131 int dc::reduction_states_ok() { return reduction_states_ok (CURSOR); }
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132 int dc::rule_context_ok() { return rule_context_ok (CURSOR); }
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133 int dc::set_elements_ok() { return set_elements_ok (CURSOR); }
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134 int dc::state_expansion_ok() { return state_expansion_ok (CURSOR); }
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135 int dc::usage_ok() { return usage_ok (CURSOR); }
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136
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137 #undef CURSOR
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138
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139 void dc::getLine(unsigned ln) const {
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140 LOGSECTION("dc::getLine");
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141 LOGV(ln);
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142 assert(ln < (unsigned) des->d_size.y);
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143 ics();
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144 }
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145
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146 ////////////////////////////////////////////////////////////
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147 //
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148 // dc_ref methods
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149
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150 dc::ref::ref() : window(0) {}
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151
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152 dc::ref::ref(dc *x) {
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153 LOGSECTION("dc::ref::ref");
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154 window = x;
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155 if (window) {
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156 ok_ptr(window);
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157 window->usage_count++;
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158 LOGV((int) window) LCV(window->usage_count);
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159 }
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160 }
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161
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162 dc::ref::ref(const ref &x) {
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163 window = x.window;
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164 if (window) {
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165 ok_ptr(window);
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166 window->usage_count++;
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167 }
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168 }
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169
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170 dc::ref &dc::ref::operator =(const ref &x) {
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171 if (window == x.window) {
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172 return *this;
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173 }
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174 if (window) {
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175 ok_ptr(window);
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176 if (window->usage_count && --window->usage_count == 0) {
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177 delete window;
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178 }
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179 }
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180 window = x.window;
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181 if (window) {
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182 ok_ptr(window);
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183 window->usage_count++;
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184 }
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185 return *this;
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186 }
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187
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188 dc::ref &dc::ref::operator =(dc *x) {
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189 if (window == x) {
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190 return *this;
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191 }
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192 if (window) {
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193 ok_ptr(window);
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194 LOGV((int) window) LCV(window->usage_count);
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195 if (window->usage_count && --window->usage_count == 0) {
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196 delete window;
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197 }
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198 }
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199 window = x;
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200 if (window) {
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201 ok_ptr(window);
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202 LOGV(window->usage_count);
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203 window->usage_count++;
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204 }
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205 return *this;
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206 }
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207
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208 dc::ref::~ref(void) {
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209 LOGSECTION("dc::ref::~ref");
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210 if (window) {
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211 ok_ptr(window);
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212 LOGV((int) window) LCV(window->usage_count);
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213 if (window->usage_count && --window->usage_count == 0) {
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214 delete window;
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215 }
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216 }
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217 }
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218
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219 void dc::ref::discardData(void) {
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220 dc *alias = window;
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221 window = 0;
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222 if (alias) {
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223 ok_ptr(alias);
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224 LOGV((int) alias) LCV(alias->usage_count);
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225 if (alias->usage_count && --alias->usage_count == 0) {
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226 delete alias;
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227 }
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228 }
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229 }
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230
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231 dc::ref::operator dc *(void) const {
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232 if (window) {
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233 ok_ptr(window);
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234 }
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235 return window;
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236 }
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237
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238 dc *dc::ref::operator ->(void) const {
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239 ok_ptr(window);
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240 return window;
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241 }