1 | // This file is a part of Framsticks SDK. http://www.framsticks.com/ |
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2 | // Copyright (C) 1999-2015 Maciej Komosinski and Szymon Ulatowski. |
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3 | // See LICENSE.txt for details. |
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4 | |
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5 | %{ |
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6 | #include "framscript-defs.h" |
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7 | #include "common/framsg.h" |
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8 | #include <math.h> |
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9 | #include <ctype.h> |
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10 | #include <stdio.h> |
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11 | |
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12 | #define YYERROR_VERBOSE |
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13 | #define YYPRINT(file,type,value) yyprint (file,type,value) |
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14 | |
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15 | static void yyprint (FILE *file,int type,YYSTYPE value); |
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16 | void handleTwoArg(YYSTYPE& result,const YYSTYPE& arg1,const YYSTYPE& arg2, |
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17 | int optoken,const char* opname, bool negarg2, bool uniq); |
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18 | bool handleCompare(YYSTYPE& result,const YYSTYPE& arg1,const YYSTYPE& arg2, |
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19 | ExtValue::CmpOperator,const char* opname); |
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20 | bool handleAssignOp(YYSTYPE& result,const YYSTYPE& var,const YYSTYPE& arg,const char* opname); |
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21 | bool handleAssignOp2(YYSTYPE& result,const char *var,const YYSTYPE& arg,const char* opname,int stackpos,bool push); |
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22 | bool variableOk(TokenValue &tok, const TokenValue& var,int &loc); |
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23 | bool globalOk(const TokenValue& var); |
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24 | void badVariable(TokenValue &tok, const TokenValue &var); |
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25 | bool evalVariable(TokenValue &tok, const TokenValue &var); |
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26 | bool doBreak(int level); |
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27 | bool doContinue(int level); |
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28 | void warnTruthValue(const TokenValue& t); |
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29 | void outFunName(const TokenValue& t); |
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30 | static bool resultIsRelaxedEqual(ExtValue::CompareResult res); |
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31 | |
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32 | static const char* assign_op_names[]={"add","sub","mul","div","mod"}; |
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33 | |
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34 | %} |
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35 | |
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36 | %token_table |
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37 | |
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38 | %token CONSTANT |
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39 | |
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40 | %nonassoc ASSIGN_ADD ASSIGN_SUB ASSIGN_MUL ASSIGN_DIV ASSIGN_MOD |
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41 | %nonassoc PLUSPLUS MINUSMINUS |
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42 | %left LOGIC_AND LOGIC_OR '!' |
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43 | %left EQUAL NOT_EQUAL GEQUAL LEQUAL '>' '<' |
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44 | %left '|' '&' '^' |
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45 | %left '-' '+' |
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46 | %left '*' '/' '%' |
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47 | %left NEG /* negation--unary minus */ |
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48 | %left TYPEOF |
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49 | %left INT_TYPE |
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50 | %left FLOAT_TYPE |
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51 | %left STRING_TYPE |
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52 | |
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53 | %token IDENT |
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54 | %token OBJNAME |
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55 | |
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56 | %token IF "if" |
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57 | %token ELSE "else" |
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58 | %token FOR "for" |
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59 | %token INNN "in" |
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60 | %token WHILE "while" |
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61 | %token DO "do" |
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62 | %token GOTO "goto" |
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63 | %token RETURN "return" |
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64 | %token BREAK "break" |
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65 | %token CONTINUE "continue" |
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66 | %token SWITCH "switch" |
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67 | %token CASE "case" |
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68 | %token DEFAULT "default" |
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69 | |
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70 | %token TYPEOF "typeof" |
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71 | %token INT_TYPE "int" |
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72 | %token FLOAT_TYPE "float" |
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73 | %token STRING_TYPE "string" |
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74 | |
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75 | %token ASM |
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76 | %token ASMLINE |
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77 | |
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78 | %token VAR "var" |
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79 | %token GLOBAL "global" |
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80 | %token FUNCTION "function" |
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81 | |
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82 | %token CALL "call" |
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83 | |
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84 | %token ASSIGN |
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85 | %token ASSIGN_ADD |
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86 | %token ASSIGN_SUB |
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87 | %token ASSIGN_MUL |
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88 | %token ASSIGN_DIV |
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89 | |
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90 | %token EQUAL |
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91 | %token NOT_EQUAL |
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92 | %token GEQUAL |
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93 | %token LEQUAL |
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94 | |
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95 | %token LOGIC_AND |
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96 | %token LOGIC_OR |
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97 | |
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98 | %token PLUSPLUS |
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99 | %token MINUSMINUS |
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100 | |
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101 | %token LSHIFT |
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102 | %token RSHIFT |
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103 | |
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104 | %% |
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105 | code: {$$.setInt(trstack.currentPos());} recurcode |
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106 | { |
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107 | int pos=$1.getInt(); |
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108 | if (pos!=trstack.currentPos()) trctx.out->printf("add %d,m0\n",pos-trstack.currentPos()); |
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109 | } |
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110 | ; |
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111 | |
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112 | recurcode: /* empty string */ |
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113 | | recurcode statement |
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114 | ; |
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115 | |
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116 | statement: ';' |
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117 | | VAR vardeflist ';' |
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118 | | GLOBAL globaldeflist ';' |
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119 | | IDENT ':' {trctx.out->printf(":%s\n",str($1));} |
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120 | | expr ';' {if (!$1.constant) { trctx.out->printf("inc m0\n"); trstack.adjust(+1); } trctx.emitLine(); } |
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121 | | functiondef |
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122 | | blok |
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123 | | if_statement |
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124 | | goto_statement |
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125 | | return_statement |
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126 | | for_statement |
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127 | | while_statement |
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128 | | dowhile_statement |
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129 | | break_statement |
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130 | | continue_statement |
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131 | | switch_statement |
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132 | // | error ';' |
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133 | | asmblock |
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134 | ; |
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135 | |
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136 | asmblock: ASM asmlines '}' |
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137 | ; |
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138 | |
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139 | asmlines: /* empty */ |
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140 | | ASMLINE {fputs(str($1),trctx.out);fputc('\n',trctx.out);} |
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141 | | asmlines ASMLINE {fputs(str($2),trctx.out);fputc('\n',trctx.out);} |
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142 | ; |
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143 | |
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144 | goto_statement: GOTO IDENT ';' |
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145 | { |
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146 | #ifdef FRAMSCRIPT_GOTO |
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147 | trctx.out->printf("jump :%s\n",str($2)); FMprintf("FramScriptCompiler","translate",FMLV_WARN,"goto is not recommended"); trctx.emitLine(); |
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148 | #else |
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149 | trctx.err->printf("goto is not supported\n");return 1; |
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150 | #endif |
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151 | } |
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152 | ; |
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153 | |
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154 | return_statement: RETURN expr ';' |
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155 | { |
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156 | int offset; |
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157 | if (trctx.functionstackpos==999) |
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158 | offset=-trstack.currentPos(); |
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159 | else |
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160 | offset=trctx.functionstackpos-trstack.currentPos(); |
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161 | if (!offset) |
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162 | { |
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163 | if ($2.constant) |
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164 | trctx.out->printf("move %s,s0\nreturn\n",litstr($2)); |
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165 | else |
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166 | { |
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167 | trctx.out->printf("move m[m0++],s0\nreturn\n"); |
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168 | trstack.adjust(+1); |
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169 | } |
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170 | } |
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171 | else |
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172 | { |
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173 | if ($2.constant) |
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174 | { |
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175 | trctx.out->printf("add %d,m0\nmove %s,s0\nreturn\n",offset,litstr($2)); |
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176 | trstack.adjust(offset); |
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177 | } |
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178 | else |
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179 | { |
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180 | trctx.out->printf("move s0,s%d\nadd %d,m0\nreturn\n",offset,offset); |
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181 | trstack.adjust(offset); |
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182 | } |
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183 | } |
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184 | } |
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185 | | RETURN ';' |
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186 | { |
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187 | int offset; |
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188 | if (trctx.functionstackpos==999) |
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189 | offset=-trstack.currentPos(); |
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190 | else |
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191 | offset=trctx.functionstackpos-trstack.currentPos(); |
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192 | trctx.emitLine(); |
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193 | if (!offset) |
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194 | trctx.out->printf("move invalid,s0\nreturn\n"); |
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195 | else |
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196 | trctx.out->printf("add %d,m0\nmove invalid,s0\nreturn\n",offset); |
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197 | } |
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198 | ; |
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199 | |
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200 | vardeflist: vardef |
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201 | | vardeflist ',' vardef |
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202 | ; |
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203 | |
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204 | vardef: IDENT { trctx.emitLine(); trstack.addVariable($1.getString()); trctx.out->printf("push invalid\n");} |
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205 | | IDENT '=' stackexpr { trctx.emitLine(); trstack.adjust(1); trstack.addVariable($1.getString());} |
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206 | ; |
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207 | |
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208 | globaldeflist: globaldef |
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209 | | globaldeflist ',' globaldef |
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210 | ; |
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211 | |
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212 | globaldef: IDENT {trstack.globals.add($1.getString(),0); |
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213 | trctx.out->printf("global %s\n",str($1));} |
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214 | ; |
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215 | |
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216 | funparam: IDENT { trstack.addVariable($1.getString()); }; |
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217 | |
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218 | paramlist: /* empty */ {$$.setInt(0); } |
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219 | | funparam {$$.setInt(1); } |
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220 | | paramlist ',' funparam {$$.setInt($1.getInt()+1);} |
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221 | ; |
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222 | |
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223 | funnamelist: |
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224 | IDENT {outFunName($1);} |
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225 | | funnamelist ',' IDENT {outFunName($3);} |
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226 | ; |
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227 | |
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228 | functiondef: FUNCTION funnamelist |
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229 | { |
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230 | trctx.emitLine(); |
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231 | int pos=trstack.currentPos(); |
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232 | $$.setInt(pos); |
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233 | if (trctx.functionstackpos!=999) |
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234 | {trctx.err->printf("functions cannot be nested\n");return 1;} |
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235 | } |
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236 | '(' paramlist ')' |
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237 | { |
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238 | trctx.functionstackpos=trstack.currentPos(); |
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239 | } |
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240 | blok |
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241 | {trctx.out->printf("move invalid,s0\nreturn\n"); |
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242 | int pos=$3.getInt(); |
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243 | trstack.dropToPos(pos); |
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244 | trctx.functionstackpos=999; |
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245 | trctx.out->printf(":_skipfun_%d\n",trctx.functiontmplabel); |
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246 | trctx.functiontmplabel=-1; |
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247 | trctx.emitLine(); |
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248 | }; |
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249 | |
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250 | break_statement: BREAK ';' {if (!doBreak(1)) return 1;} |
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251 | | BREAK expr ';' |
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252 | { |
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253 | trctx.emitLine(); |
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254 | if (!$2.constant) |
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255 | {trctx.err->printf("break level must be a constant expression\n");return 1;} |
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256 | int level=$2.getInt(); |
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257 | if (level<1) |
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258 | {trctx.err->printf("break level must be a positive integer\n");return 1;} |
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259 | if (!doBreak(level)) return 1; |
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260 | trctx.emitLine(); |
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261 | }; |
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262 | |
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263 | continue_statement: CONTINUE ';' {if (!doContinue(1)) return 1;} |
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264 | | CONTINUE expr ';' |
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265 | { |
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266 | if (!$2.constant) |
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267 | {trctx.err->printf("continue level must be a constant expression\n");return 1;} |
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268 | int level=$2.getInt(); |
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269 | if (level<1) |
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270 | {trctx.err->printf("continue level must be a positive integer\n");return 1;} |
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271 | if (!doContinue(level)) return 1; |
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272 | trctx.emitLine(); |
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273 | }; |
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274 | |
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275 | while_statement: WHILE '(' |
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276 | { |
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277 | int c=trctx.labelcounter++; $$.setInt(c); |
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278 | $$.stack=trstack.currentPos(); |
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279 | trstack.loops.addLoop(c,$$.stack); |
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280 | trctx.out->printf(":_loop_%d\n",c);} |
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281 | expr ')' |
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282 | { |
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283 | int c=$3.getInt(); |
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284 | warnTruthValue($4); |
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285 | if ($4.constant) |
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286 | {if (!$4.getInt()) trctx.out->printf("jump :_loop_end_%d\n",c);} |
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287 | else |
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288 | { |
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289 | trctx.out->printf("if ~=,m[m0++],:_loop_end_%d\n",c,c); |
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290 | trstack.adjust(+1); |
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291 | } |
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292 | } |
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293 | pseudoblok_statement |
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294 | { |
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295 | trctx.out->printf("jump :_loop_%d\n:_loop_end_%d\n",$3.getInt(),$3.getInt()); |
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296 | trstack.adjust($3.stack-trstack.currentPos()); |
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297 | trstack.loops.drop(); |
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298 | } |
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299 | ; |
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300 | |
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301 | dowhile_statement: DO |
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302 | { |
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303 | trctx.emitLine(); |
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304 | int c=trctx.labelcounter++; $$.setInt(c); |
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305 | $$.stack=trstack.currentPos(); |
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306 | trstack.loops.addLoop(c,$$.stack); |
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307 | trctx.out->printf(":_loop_%d\n",c);} //2 |
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308 | |
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309 | pseudoblok_statement WHILE '(' expr ')' |
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310 | |
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311 | {//8 |
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312 | int c=$2.getInt(); |
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313 | warnTruthValue($6); |
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314 | if ($6.constant) |
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315 | {if ($6.getInt()) trctx.out->printf("jump :_loop_%d\n",c);} |
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316 | else |
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317 | { |
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318 | trctx.out->printf("if !~,m[m0++],:_loop_%d\n",c); |
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319 | trstack.adjust(+1); |
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320 | } |
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321 | trctx.out->printf(":_loop_end_%d\n",c); |
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322 | trstack.adjust($2.stack-trstack.currentPos()); |
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323 | trstack.loops.drop(); |
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324 | trctx.emitLine(); |
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325 | } |
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326 | ; |
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327 | |
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328 | switch_statement: SWITCH '(' |
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329 | { |
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330 | int c=trctx.labelcounter++; $1.setInt(c); |
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331 | trstack.loops.addLoop(c,trstack.currentPos());} |
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332 | stackexpr ')' |
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333 | {trctx.emitLine(); trctx.out->printf("dec m0\n"); trstack.adjust(-1);} |
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334 | '{' inside_switch '}' |
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335 | { |
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336 | trctx.emitLine(); |
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337 | LoopInfo *li=trstack.loops.getLoop(0); |
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338 | trctx.out->printf(":_case_after_%d_%d\n" |
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339 | "add 2,m0\n" |
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340 | ":_loop_end_%d\n", |
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341 | li->id,li->casecounter, |
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342 | li->id); |
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343 | trstack.adjust(+2); |
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344 | trstack.loops.drop(); |
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345 | } |
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346 | ; |
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347 | |
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348 | inside_switch: /* empty */ |
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349 | | case_label |
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350 | | inside_switch case_label |
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351 | ; |
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352 | |
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353 | case_label: CASE expr ':' |
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354 | { |
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355 | LoopInfo *li=trstack.loops.getLoop(0); |
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356 | if ($2.constant) |
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357 | trctx.out->printf("if s1,!=,%s,:_case_before_%d_%d\n", |
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358 | litstr($2), |
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359 | li->id,li->casecounter+1); |
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360 | else |
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361 | { |
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362 | trctx.out->printf("if s2,!=,m[m0++],:_case_before_%d_%d\n", |
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363 | li->id,li->casecounter+1); |
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364 | trstack.adjust(+1); |
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365 | } |
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366 | trctx.out->printf(":_case_after_%d_%d\n", |
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367 | li->id,li->casecounter); |
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368 | int pos=trstack.currentPos(); $$.setInt(pos); |
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369 | } |
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370 | recurcode |
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371 | { |
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372 | trctx.emitLine(); |
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373 | LoopInfo *li=trstack.loops.getLoop(0); |
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374 | int pos=$4.getInt(); |
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375 | if (pos!=trstack.currentPos()) trctx.out->printf("add %d,m0\n",pos-trstack.currentPos()); |
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376 | trstack.dropToPos(pos); |
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377 | li->casecounter++; |
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378 | trctx.out->printf("jump :_case_after_%d_%d\n" |
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379 | ":_case_before_%d_%d\n", |
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380 | li->id,li->casecounter, |
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381 | li->id,li->casecounter); |
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382 | } |
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383 | | DEFAULT ':' |
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384 | { |
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385 | LoopInfo *li=trstack.loops.getLoop(0); |
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386 | trctx.out->printf(":_case_after_%d_%d\n",li->id,li->casecounter); |
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387 | } |
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388 | recurcode |
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389 | { |
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390 | LoopInfo *li=trstack.loops.getLoop(0); |
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391 | li->casecounter++; |
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392 | } |
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393 | ; |
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394 | |
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395 | newvar_or_expr: |
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396 | VAR IDENT { $$.setInt(trstack.addVariable($2.getString())); trctx.out->printf("push invalid\n"); $$.ident=true; $$.var=true; } |
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397 | |
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398 | | |
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399 | VAR IDENT '=' stackexpr |
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400 | { |
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401 | //trctx.out->printf("# VAR IDENT '=' stackexpr pos=%d\n",trstack.currentPos()); |
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402 | trstack.adjust(+1); |
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403 | $$.setInt(trstack.addVariable($2.getString())); |
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404 | $$.ident=true; $$.var=true; |
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405 | } |
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406 | |
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407 | | |
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408 | expr_special_ident |
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409 | { |
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410 | $$=$1; |
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411 | } |
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412 | |
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413 | | //nic |
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414 | { |
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415 | $$.setInt(1); $$.assign=false; $$.ident=false; $$.var=false; $$.constant=true; |
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416 | } |
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417 | ; |
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418 | |
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419 | expr_or_objname: |
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420 | expr { $$=$1; $$.objname=false; } |
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421 | | |
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422 | OBJNAME { $$.setString($1.getString()); $$.objname=true; } |
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423 | ; |
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424 | |
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425 | for_statement_begin: FOR '(' |
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426 | { |
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427 | int c=trctx.labelcounter++; $$.counter=c; $$.stack=trstack.currentPos(); |
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428 | } |
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429 | newvar_or_expr |
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430 | { |
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431 | $$=$4; $$.counter=$3.counter; $$.stack=$3.stack; |
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432 | }; |
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433 | |
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434 | for_statement: |
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435 | |
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436 | /////////// for(in) ... //////////// |
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437 | for_statement_begin INNN |
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438 | {//3 |
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439 | if (!$1.ident) |
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440 | { |
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441 | trctx.err->printf("for(... in ...) requires an variable\n"); |
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442 | return 1; |
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443 | } |
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444 | int loc; |
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445 | if ($1.var) // for(var x[=expr] in |
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446 | $$.setInt($1.getInt()); |
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447 | else |
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448 | { // for(x in |
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449 | if (variableOk($$,$1,loc)) |
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450 | $$.setInt(loc); |
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451 | else if (globalOk($1)) |
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452 | { |
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453 | trctx.err->printf("global '%s' can't be iterating variable in for\n",str($1)); |
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454 | return 1; |
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455 | } |
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456 | else |
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457 | { |
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458 | badVariable($$,$1); |
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459 | return 1; |
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460 | } |
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461 | } |
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462 | } |
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463 | expr_or_objname ')' |
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464 | {//6 |
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465 | trctx.emitLine(); |
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466 | if ($4.constant) |
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467 | {trctx.err->printf("%s can't be iterated\n",str($4)); return 1;} |
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468 | if ($4.objname) |
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469 | trctx.out->printf("move %s.iterator,m[--m0]\n",$4.getString().c_str()); |
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470 | else |
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471 | trctx.out->printf("move s%d,m1\nmove [m1].\"iterator\",m[--m0]\n",0); |
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472 | trstack.adjust(-1); |
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473 | // s0=iterator s1=obj (=obj.iterator) |
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474 | trstack.loops.addLoop($1.counter,trstack.currentPos()); |
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475 | trctx.out->printf(":_loop1_%d\n",$1.counter); |
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476 | trctx.out->printf(":_loop_%d\n",$1.counter); |
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477 | trctx.out->printf("move s0,m1\nmove [m1].\"next\",m2\n"); |
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478 | trctx.out->printf("if m2,==,0,:_loop_end_%d\n",$1.counter); |
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479 | trctx.out->printf("move [m1].\"value\",s%d\n",$3.getInt()-trstack.currentPos()); |
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480 | } |
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481 | pseudoblok_statement |
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482 | { |
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483 | trctx.out->printf("jump :_loop1_%d\n",$1.counter); |
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484 | trctx.out->printf(":_loop_end_%d\n",$1.counter); |
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485 | trstack.loops.drop(); |
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486 | if ($1.stack != trstack.currentPos()) |
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487 | trctx.out->printf("add %d,m0\n",$1.stack-trstack.currentPos()); |
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488 | trstack.adjust($1.stack-trstack.currentPos()); |
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489 | } |
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490 | |
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491 | | |
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492 | |
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493 | /////////// for(;;) ... //////////// |
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494 | for_statement_begin ';' |
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495 | { //3 |
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496 | trctx.emitLine(); |
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497 | //trctx.out->printf("# for_statement_begin pos=%d ident=%d var=%d\n",trstack.currentPos(),$1.ident,$1.var); |
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498 | if ((!$1.var) && ($1.ident)) |
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499 | { // for(x; |
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500 | int loc; |
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501 | if ((!variableOk($$,$1,loc)) || (globalOk($1))) |
---|
502 | { |
---|
503 | badVariable($$,$1); |
---|
504 | return 1; |
---|
505 | } |
---|
506 | } |
---|
507 | if (!$1.constant && !$1.ident) |
---|
508 | { |
---|
509 | trctx.out->printf("inc m0\n"); |
---|
510 | trstack.adjust(+1); |
---|
511 | } |
---|
512 | trstack.loops.addLoop($1.counter,trstack.currentPos()); |
---|
513 | trctx.out->printf(":_loop1_%d\n",$1.counter); |
---|
514 | //trctx.out->printf("# expr#2\n"); |
---|
515 | } |
---|
516 | expr_or_empty ';' |
---|
517 | { //6 |
---|
518 | trctx.emitLine(); |
---|
519 | int c=$1.counter; |
---|
520 | warnTruthValue($4); |
---|
521 | if ($4.constant) |
---|
522 | {if (!$4.getInt()) trctx.out->printf("jump :_loop_end_%d\n",c);} |
---|
523 | else |
---|
524 | { |
---|
525 | trctx.out->printf("if m[m0++],==,0,:_loop_end_%d\n",c,c); |
---|
526 | trstack.adjust(+1); |
---|
527 | } |
---|
528 | trctx.tmp=0; |
---|
529 | trctx.divertOut(); |
---|
530 | //trctx.out->printf("# expr#3\n"); |
---|
531 | } |
---|
532 | expr_or_empty ')' |
---|
533 | { //9 |
---|
534 | trctx.emitLine(); |
---|
535 | if (!$7.constant) { trctx.out->printf("inc m0\n"); trstack.adjust(+1); } |
---|
536 | trctx.restoreOut(); |
---|
537 | $$.setString(trctx.tmp); |
---|
538 | //trctx.out->printf("# pseudoblok_statement pos=%d\n",trstack.currentPos()); |
---|
539 | } |
---|
540 | pseudoblok_statement |
---|
541 | {//11 |
---|
542 | trctx.out->printf(":_loop_%d\n",$1.counter); |
---|
543 | LoopInfo* li=trstack.loops.getLoop(0); |
---|
544 | if (li->location != trstack.currentPos()) |
---|
545 | trctx.out->printf("add %d,m0\n",li->location-trstack.currentPos()); |
---|
546 | trctx.out->printf(str($9)); |
---|
547 | if (li->location != trstack.currentPos()) |
---|
548 | trctx.out->printf("sub %d,m0\n",li->location-trstack.currentPos()); |
---|
549 | trctx.out->printf("jump :_loop1_%d\n:_loop_end_%d\n",$1.counter,$1.counter); |
---|
550 | if ($1.stack != trstack.currentPos()) |
---|
551 | trctx.out->printf("add %d,m0\n",$1.stack-trstack.currentPos()); |
---|
552 | trstack.adjust($1.stack-trstack.currentPos()); |
---|
553 | trstack.loops.drop(); |
---|
554 | } |
---|
555 | ; |
---|
556 | |
---|
557 | pseudoblok_statement: |
---|
558 | {trctx.emitLine(); int pos=trstack.currentPos(); $$.setInt(pos);} |
---|
559 | statement |
---|
560 | { |
---|
561 | int pos=$1.getInt(); |
---|
562 | if (pos!=trstack.currentPos()) trctx.out->printf("add %d,m0\n",pos-trstack.currentPos()); |
---|
563 | trstack.dropToPos(pos); |
---|
564 | trctx.emitLine(); |
---|
565 | }; |
---|
566 | |
---|
567 | if_statement: |
---|
568 | if_condition pseudoblok_statement |
---|
569 | { |
---|
570 | if ($1.stack!=trstack.currentPos()) |
---|
571 | trctx.out->printf("add %d,m0\n",$1.stack-trstack.currentPos()); |
---|
572 | trstack.adjust(trstack.currentPos()-$1.stack); |
---|
573 | trctx.out->printf("jump :_if_end_%d\n:_if_else_%d\n",$1.getInt(),$1.getInt()); |
---|
574 | } |
---|
575 | ELSE |
---|
576 | {trstack.adjust($1.stack-trstack.currentPos());} |
---|
577 | pseudoblok_statement |
---|
578 | { |
---|
579 | if ($1.stack!=trstack.currentPos()) |
---|
580 | trctx.out->printf("add %d,m0\n",$1.stack-trstack.currentPos()); |
---|
581 | trstack.adjust(trstack.currentPos()-$1.stack); |
---|
582 | trctx.out->printf(":_if_end_%d\n",$1.getInt()); |
---|
583 | } |
---|
584 | | |
---|
585 | if_condition pseudoblok_statement |
---|
586 | { |
---|
587 | if ($1.stack!=trstack.currentPos()) |
---|
588 | trctx.out->printf("add %d,m0\n",$1.stack-trstack.currentPos()); |
---|
589 | trstack.dropToPos($1.stack); |
---|
590 | trctx.out->printf(":_if_else_%d\n",$1.getInt()); |
---|
591 | } |
---|
592 | ; |
---|
593 | |
---|
594 | if_condition: IF |
---|
595 | {$$.stack=trstack.currentPos();trctx.emitLine();} |
---|
596 | |
---|
597 | '(' expr ')' |
---|
598 | { |
---|
599 | trctx.emitLine(); |
---|
600 | int c=trctx.labelcounter++; |
---|
601 | $$.setInt(c); |
---|
602 | warnTruthValue($4); |
---|
603 | if ($4.constant) |
---|
604 | { |
---|
605 | if (!$4.getInt()) trctx.out->printf("jump :_if_else_%d\n",c); |
---|
606 | } |
---|
607 | else |
---|
608 | { |
---|
609 | trctx.out->printf("if ~=,m[m0++],:_if_else_%d\n",c); |
---|
610 | trstack.adjust(+1); |
---|
611 | } |
---|
612 | $$.stack=$2.stack; |
---|
613 | }; |
---|
614 | |
---|
615 | blok: '{' |
---|
616 | { int pos=trstack.currentPos(); |
---|
617 | $$.setInt(pos); |
---|
618 | } |
---|
619 | recurcode '}' |
---|
620 | { |
---|
621 | int pos=$2.getInt(); |
---|
622 | if (pos!=trstack.currentPos()) trctx.out->printf("add %d,m0\n",pos-trstack.currentPos()); |
---|
623 | trstack.dropToPos(pos); |
---|
624 | } |
---|
625 | |
---|
626 | assign_op: ASSIGN_ADD {$$.setInt(0);} |
---|
627 | | ASSIGN_SUB {$$.setInt(1);} |
---|
628 | | ASSIGN_MUL {$$.setInt(2);} |
---|
629 | | ASSIGN_DIV {$$.setInt(3);} |
---|
630 | | ASSIGN_MOD {$$.setInt(4);} |
---|
631 | |
---|
632 | plusminus: PLUSPLUS {$$.setInt(1);} | MINUSMINUS {$$.setInt(0);} |
---|
633 | |
---|
634 | expr: expr_special_ident |
---|
635 | { |
---|
636 | //trctx.out->printf("# expr: ident=%d str=%s\n",$1.ident,(const char*)$1.getString()); |
---|
637 | if ($1.ident) |
---|
638 | { |
---|
639 | if (evalVariable($$,$1)) |
---|
640 | $$.constant=false; |
---|
641 | else |
---|
642 | return 1; |
---|
643 | } |
---|
644 | else |
---|
645 | {$$=$1; $$.ident=false;} |
---|
646 | trctx.emitLine(); |
---|
647 | } |
---|
648 | ; |
---|
649 | |
---|
650 | stackexpr: expr {if ($1.constant) {trctx.out->printf("push %s\n",litstr($1)); trstack.adjust(-1); $$.constant=0;} } |
---|
651 | |
---|
652 | expr_or_empty: |
---|
653 | expr {$$=$1;} |
---|
654 | |
---|
655 | | //nic |
---|
656 | { $$.setInt(1); $$.assign=false; $$.constant=true; $$.ident=false; $$.ident=false; } |
---|
657 | ; |
---|
658 | |
---|
659 | expr_special_ident: CONSTANT { $$=$1; $$.constant=1; $$.ident=0; } |
---|
660 | |
---|
661 | | IDENT { $$.ident=true; $$.setString($1.getString()); } |
---|
662 | |
---|
663 | | OBJNAME ':' IDENT {$$.constant=0; $$.ident=0; |
---|
664 | trctx.out->printf("push %s:%s\n",$1.getString().c_str(), |
---|
665 | $3.getString().c_str()); |
---|
666 | trstack.adjust(-1); |
---|
667 | } |
---|
668 | | plusminus IDENT |
---|
669 | { |
---|
670 | trctx.emitLine(); |
---|
671 | $$.ident=0; |
---|
672 | int loc; if (variableOk($$,$2,loc)) |
---|
673 | { loc-=trstack.currentPos(); |
---|
674 | trctx.out->printf("%s s%d\npush s%d\n",$1.getInt()?"inc":"dec",loc,loc); |
---|
675 | trstack.adjust(-1);} |
---|
676 | else if (globalOk($2)) |
---|
677 | { trctx.out->printf("%s @%s\npush @%s\n",$1.getInt()?"inc":"dec",str($2),str($2)); |
---|
678 | trstack.adjust(-1);} |
---|
679 | else {badVariable($$,$2); return 1;} |
---|
680 | } |
---|
681 | |
---|
682 | | IDENT plusminus |
---|
683 | { |
---|
684 | trctx.emitLine(); |
---|
685 | $$.ident=0; |
---|
686 | int loc; if (variableOk($$,$1,loc)) |
---|
687 | {loc-=trstack.currentPos(); trctx.out->printf("push s%d\n%s s%d\n",loc,$2.getInt()?"inc":"dec",loc+1); |
---|
688 | trstack.adjust(-1);} |
---|
689 | else if (globalOk($1)) |
---|
690 | { trctx.out->printf("push @%s\n%s @%s\n",$1.getString().c_str(), |
---|
691 | $2.getInt()?"inc":"dec",$1.getString().c_str()); |
---|
692 | trstack.adjust(-1);} |
---|
693 | else {badVariable($$,$1); return 1;} |
---|
694 | } |
---|
695 | |
---|
696 | | IDENT assign_op expr { trctx.emitLine(); $$.ident=0; |
---|
697 | if (!handleAssignOp($$,$1,$3,assign_op_names[$2.getInt()])) |
---|
698 | if (globalOk($1)) {SString t="@"; t+=$1.getString(); |
---|
699 | handleAssignOp2($$,t.c_str(),$3,assign_op_names[$2.getInt()],0,1);} |
---|
700 | else { badVariable($$,$1); return 1; } |
---|
701 | } |
---|
702 | |
---|
703 | | TYPEOF '(' expr ')' { trctx.emitLine(); $$.ident=0; |
---|
704 | if ($3.constant) |
---|
705 | {$$.constant=1; $$=$3.getExtType();} |
---|
706 | else |
---|
707 | {trctx.out->printf("type s0,s0\n");} |
---|
708 | } |
---|
709 | | INT_TYPE '(' expr ')' { trctx.emitLine(); $$.ident=0; |
---|
710 | if ($3.constant) |
---|
711 | {$$.constant=1; $$=ExtValue($3.getInt());} |
---|
712 | else |
---|
713 | {trctx.out->printf("conv 1,s0\n");} |
---|
714 | } |
---|
715 | | FLOAT_TYPE '(' expr ')' { trctx.emitLine(); $$.ident=0; |
---|
716 | if ($3.constant) |
---|
717 | {$$.constant=1; $$=ExtValue($3.getDouble());} |
---|
718 | else |
---|
719 | {trctx.out->printf("conv 2,s0\n");} |
---|
720 | } |
---|
721 | | STRING_TYPE '(' expr ')' { trctx.emitLine(); $$.ident=0; |
---|
722 | if ($3.constant) |
---|
723 | {$$.constant=1; $$=ExtValue($3.getString());} |
---|
724 | else |
---|
725 | {trctx.out->printf("conv 3,s0\n");} |
---|
726 | } |
---|
727 | |
---|
728 | | expr '+' expr { handleTwoArg($$,$1,$3,'+',"add",0,1); } |
---|
729 | | expr '-' expr { handleTwoArg($$,$1,$3,'-',"sub",0,0); } |
---|
730 | | expr '*' expr { handleTwoArg($$,$1,$3,'*',"mul",0,1); } |
---|
731 | | expr '/' expr { handleTwoArg($$,$1,$3,'/',"div",0,0); } |
---|
732 | | expr '&' expr { handleTwoArg($$,$1,$3,'&',"and",0,0); } |
---|
733 | | expr '|' expr { handleTwoArg($$,$1,$3,'|',"or",0,0); } |
---|
734 | | expr '%' expr { handleTwoArg($$,$1,$3,'%',"mod",0,0); } |
---|
735 | |
---|
736 | | expr LOGIC_AND |
---|
737 | { |
---|
738 | // a && b: |
---|
739 | // push a |
---|
740 | // if (a) |
---|
741 | // pop; goto and_b |
---|
742 | // else |
---|
743 | // pop; push 0; goto and_end |
---|
744 | // and_b: |
---|
745 | // push b |
---|
746 | // and_end: |
---|
747 | trctx.emitLine(); |
---|
748 | // trctx.out->printf("\n####### logic AND\n"); |
---|
749 | int c=trctx.labelcounter++; |
---|
750 | $$.setInt(c); |
---|
751 | if ($1.constant) |
---|
752 | { |
---|
753 | ExtValue::CompareResult cond=$1.compare(ExtValue::zero()); |
---|
754 | if (resultIsRelaxedEqual(cond)) |
---|
755 | { |
---|
756 | $1.counter=0; |
---|
757 | // no stack adjust - next tokens are processed in a different context |
---|
758 | trctx.out->printf("push 0\njump :_and_end_%d\n",c); |
---|
759 | } |
---|
760 | else |
---|
761 | $1.counter=1; |
---|
762 | } |
---|
763 | else |
---|
764 | { |
---|
765 | trstack.adjust(+1); // stack as if (a==true), b expr is processed |
---|
766 | trctx.out->printf("if !~,m[m0++],:_and_b_%d\n" |
---|
767 | "push 0\n" |
---|
768 | "jump :_and_end_%d\n" |
---|
769 | ":_and_b_%d\n" |
---|
770 | ,c,c,c); |
---|
771 | } |
---|
772 | } |
---|
773 | expr |
---|
774 | { |
---|
775 | $$.ident=false; |
---|
776 | $$.constant=0; |
---|
777 | if ($4.constant) |
---|
778 | { |
---|
779 | if (!($1.constant && $1.counter==0)) |
---|
780 | { |
---|
781 | ExtValue::CompareResult cond=$4.compare(ExtValue::zero()); |
---|
782 | bool value=!resultIsRelaxedEqual(cond); |
---|
783 | trstack.adjust(-1); |
---|
784 | trctx.out->printf("push %d\n",value); |
---|
785 | } |
---|
786 | } |
---|
787 | trctx.out->printf(":_and_end_%d\n",$3.getInt()); |
---|
788 | // trctx.out->printf("#################\n\n"); |
---|
789 | } |
---|
790 | |
---|
791 | | expr LOGIC_OR |
---|
792 | { |
---|
793 | // a || b: |
---|
794 | // push a |
---|
795 | // if (!a) |
---|
796 | // pop; goto and_b |
---|
797 | // else |
---|
798 | // pop; push 1; goto and_end |
---|
799 | // and_b: |
---|
800 | // push b |
---|
801 | // and_end: |
---|
802 | trctx.emitLine(); |
---|
803 | // trctx.out->printf("\n####### logic AND\n"); |
---|
804 | int c=trctx.labelcounter++; |
---|
805 | $$.setInt(c); |
---|
806 | if ($1.constant) |
---|
807 | { |
---|
808 | ExtValue::CompareResult cond=$1.compare(ExtValue::zero()); |
---|
809 | if (!resultIsRelaxedEqual(cond)) |
---|
810 | { |
---|
811 | $1.counter=1; |
---|
812 | // no stack adjust - next tokens are processed in a different context |
---|
813 | trctx.out->printf("push 1\njump :_or_end_%d\n",c); |
---|
814 | } |
---|
815 | else |
---|
816 | $1.counter=0; |
---|
817 | } |
---|
818 | else |
---|
819 | { |
---|
820 | trstack.adjust(+1); // stack for (a==false) |
---|
821 | trctx.out->printf("if ~=,m[m0++],:_or_b_%d\n" |
---|
822 | "push 1\n" |
---|
823 | "jump :_or_end_%d\n" |
---|
824 | ":_or_b_%d\n" |
---|
825 | ,c,c,c); |
---|
826 | } |
---|
827 | } |
---|
828 | expr |
---|
829 | { |
---|
830 | $$.ident=false; |
---|
831 | $$.constant=0; |
---|
832 | if ($4.constant) |
---|
833 | { |
---|
834 | if (!($1.constant && $1.counter==1)) |
---|
835 | { |
---|
836 | ExtValue::CompareResult cond=$4.compare(ExtValue::zero()); |
---|
837 | bool value=!resultIsRelaxedEqual(cond); |
---|
838 | trstack.adjust(-1); |
---|
839 | trctx.out->printf("push %d\n",value); |
---|
840 | } |
---|
841 | } |
---|
842 | trctx.out->printf(":_or_end_%d\n",$3.getInt()); |
---|
843 | // trctx.out->printf("#################\n\n"); |
---|
844 | } |
---|
845 | |
---|
846 | |
---|
847 | | expr LSHIFT expr { handleTwoArg($$,$1,$3,LSHIFT,"shift",0,0); } |
---|
848 | | expr RSHIFT expr { handleTwoArg($$,$1,$3,RSHIFT,"shift",1,0); } |
---|
849 | | expr EQUAL expr { if (!handleCompare($$,$1,$3,ExtValue::CmpEQ,"==")) return 1; } |
---|
850 | | expr NOT_EQUAL expr { if (!handleCompare($$,$1,$3,ExtValue::CmpNE,"!=")) return 1; } |
---|
851 | | expr GEQUAL expr { if (!handleCompare($$,$1,$3,ExtValue::CmpGE,">=")) return 1; } |
---|
852 | | expr LEQUAL expr { if (!handleCompare($$,$1,$3,ExtValue::CmpLE,"<=")) return 1; } |
---|
853 | | expr '>' expr { if (!handleCompare($$,$1,$3,ExtValue::CmpGT,">")) return 1; } |
---|
854 | | expr '<' expr { if (!handleCompare($$,$1,$3,ExtValue::CmpLT,"<")) return 1; } |
---|
855 | |
---|
856 | | '!' expr { |
---|
857 | trctx.emitLine(); $$.assign=$2.assign; $$.parens=0; $$.ident=0; |
---|
858 | if ($2.constant) |
---|
859 | {$$.constant=1; ExtValue::CompareResult res=$2.compare(ExtValue((paInt)0)); $$.setInt(resultIsRelaxedEqual(res));} |
---|
860 | else |
---|
861 | {trctx.out->printf("setif ~=,s0,s0\n");} |
---|
862 | } |
---|
863 | |
---|
864 | | '-' expr %prec NEG { |
---|
865 | trctx.emitLine(); $$.assign=$2.assign; $$.parens=0; $$.ident=0; |
---|
866 | if ($2.constant) |
---|
867 | { $$.constant=$2.constant; |
---|
868 | if ($2.type==TInt) $$.setInt(-$2.getInt()); |
---|
869 | else if ($2.type==TDouble) $$.setDouble(-$2.getDouble()); |
---|
870 | else $$=$2; |
---|
871 | } |
---|
872 | else |
---|
873 | { |
---|
874 | $$.constant=0; SString t="-"; t+=$2.getString(); $$.setString(t); |
---|
875 | trctx.out->printf("mul -1,s0\n"); |
---|
876 | } |
---|
877 | } |
---|
878 | |
---|
879 | | '(' expr ')' { trctx.emitLine(); $$ = $2; $$.assign=$2.assign?(!$2.parens):0; $$.parens=1; $$.ident=0; } |
---|
880 | |
---|
881 | | OBJNAME '.' member { |
---|
882 | trctx.emitLine(); $$.constant=0; $$.ident=0; SString t=$1.getString(); t+="."; t+=$3.getString(); $$.setString(t); |
---|
883 | if ($3.constant) |
---|
884 | { |
---|
885 | trctx.out->printf("push %s.%s\n",str($1),str($3)); trstack.adjust(-1); |
---|
886 | } |
---|
887 | else |
---|
888 | { |
---|
889 | trctx.out->printf("move s0,m1\nmove %s.[m1],s0\n",str($1)); |
---|
890 | } |
---|
891 | } |
---|
892 | |
---|
893 | | OBJNAME '.' member assign_op expr |
---|
894 | { trctx.emitLine(); $$.constant=0; $$.ident=0; SString t=$1.getString(); t+="."; t+=$3.getString(); $$.setString(t); |
---|
895 | if ($3.constant) |
---|
896 | { |
---|
897 | handleAssignOp2($$,t.c_str(),$5,assign_op_names[$4.getInt()],0,1); |
---|
898 | } |
---|
899 | else |
---|
900 | { |
---|
901 | int sp=($5.constant)?0:1; |
---|
902 | t=$1.getString();t+=".[m1]"; |
---|
903 | trctx.out->printf("move s0,m1\n",str($1)); |
---|
904 | handleAssignOp2($$,t.c_str(),$5,assign_op_names[$4.getInt()],sp,0); |
---|
905 | if (sp) {trctx.out->printf("inc m0\n"); trstack.adjust(1);} |
---|
906 | } |
---|
907 | } |
---|
908 | |
---|
909 | | plusminus OBJNAME '.' member { |
---|
910 | trctx.emitLine(); $$.constant=0; $$.ident=0; SString t=$2.getString(); t+="."; t+=$4.getString(); $$.setString(t); |
---|
911 | if ($4.constant) |
---|
912 | { |
---|
913 | trctx.out->printf("%s %s.%s\npush %s.%s\n",$1.getInt()?"inc":"dec", |
---|
914 | str($2),str($4),str($2),str($4)); |
---|
915 | trstack.adjust(-1); |
---|
916 | } |
---|
917 | else |
---|
918 | { |
---|
919 | trctx.out->printf("move s0,m1\n%s %s.[m1]\nmove %s.[m1],s0\n", |
---|
920 | $1.getInt()?"inc":"dec",str($2),str($2)); |
---|
921 | } |
---|
922 | } |
---|
923 | |
---|
924 | | OBJNAME '.' member plusminus { |
---|
925 | trctx.emitLine(); $$.constant=0; $$.ident=0; SString t=$1.getString(); t+="."; t+=$3.getString(); $$.setString(t); |
---|
926 | if ($3.constant) |
---|
927 | { |
---|
928 | trctx.out->printf("push %s.%s\n%s %s.%s\n", |
---|
929 | str($1),str($3),$4.getInt()?"inc":"dec",str($1),str($3)); |
---|
930 | trstack.adjust(-1); |
---|
931 | } |
---|
932 | else |
---|
933 | { |
---|
934 | trctx.out->printf("move s0,m1\nmove %s.[m1],s0\n%s %s.[m1]\n", |
---|
935 | str($1),$4.getInt()?"inc":"dec",str($1)); |
---|
936 | } |
---|
937 | } |
---|
938 | |
---|
939 | | OBJNAME '.' '*' { |
---|
940 | trctx.emitLine(); $$.constant=0; $$.ident=0; SString t=$1.getString(); t+=".*"; $$.setString(t); |
---|
941 | trctx.out->printf("push %s.*\n",str($1)); trstack.adjust(-1); |
---|
942 | } |
---|
943 | |
---|
944 | |
---|
945 | | OBJNAME '.' member '=' expr { |
---|
946 | trctx.emitLine(); $$=$5; $$.assign=1; $$.parens=0; $$.ident=0; |
---|
947 | if ($3.constant) |
---|
948 | { |
---|
949 | if ($$.constant) |
---|
950 | trctx.out->printf("move %s,%s.%s\n",litstr($5),str($1),str($3)); |
---|
951 | else |
---|
952 | trctx.out->printf("move s0,%s.%s\n",str($1),str($3)); |
---|
953 | } |
---|
954 | else |
---|
955 | { |
---|
956 | if ($$.constant) |
---|
957 | { |
---|
958 | trctx.out->printf("move m[m0++],m1\nmove %s,%s.[m1]\n", |
---|
959 | litstr($5),str($1)); |
---|
960 | trstack.adjust(1); |
---|
961 | } |
---|
962 | else |
---|
963 | { |
---|
964 | trctx.out->printf("move s1,m1\nmove m[m0++],s0\nmove s0,%s.[m1]\n", |
---|
965 | str($1)); |
---|
966 | trstack.adjust(1); |
---|
967 | } |
---|
968 | } |
---|
969 | } |
---|
970 | |
---|
971 | | OBJNAME '.' member '(' arguments ')' |
---|
972 | { |
---|
973 | trctx.emitLine(); $$.constant=0; $$.ident=0; SString t=$1.getString(); t+="."; t+=$3.getString(); $$.setString(t); |
---|
974 | int adj=0,adj2=0; |
---|
975 | if ($5.getInt()==0) |
---|
976 | {trctx.out->printf("dec m0\n");trstack.adjust(-1);adj=1;} |
---|
977 | if ($3.constant) |
---|
978 | trctx.out->printf("call %s.%s\n",str($1),str($3)); |
---|
979 | else |
---|
980 | { |
---|
981 | trctx.out->printf("move s%d,m1\ncall %s.[m1]\n",$5.getInt()+adj,str($1)); |
---|
982 | adj2=1; |
---|
983 | } |
---|
984 | adj2+=$5.getInt()-1+adj; |
---|
985 | if (adj2>0) |
---|
986 | { |
---|
987 | trctx.out->printf("add %d,m0\nxmove s%d,s0\n",adj2,-adj2); |
---|
988 | trstack.adjust(adj2); |
---|
989 | } |
---|
990 | } |
---|
991 | |
---|
992 | | CALL expr '(' arguments ')' |
---|
993 | { trctx.emitLine(); $$.constant=0; $$.ident=0; $$.setString($2.getString()); |
---|
994 | short adj=0; |
---|
995 | if ($4.getInt()==0) |
---|
996 | {trctx.out->printf("dec m0\n");trstack.adjust(-1);adj=1;} |
---|
997 | if ($2.constant) |
---|
998 | trctx.out->printf("call %s\n",litstr($2)); |
---|
999 | else |
---|
1000 | trctx.out->printf("call s%d\n",$4.getInt()+adj); |
---|
1001 | if (($4.getInt()+adj) > 0) |
---|
1002 | { |
---|
1003 | trctx.out->printf("add %d,m0\nxmove s%d,s0\n",$4.getInt()+adj,-($4.getInt()+adj)); |
---|
1004 | trstack.adjust($4.getInt()+adj); |
---|
1005 | } |
---|
1006 | } |
---|
1007 | |
---|
1008 | | FUNCTION IDENT |
---|
1009 | { trctx.emitLine(); $$.constant=0; $$.ident=0; SString t=":"; t+=$1.getString(); $$.setString(t); |
---|
1010 | trctx.out->printf("push :%s\n",$2.getString().c_str()); |
---|
1011 | trstack.adjust(-1); |
---|
1012 | } |
---|
1013 | |
---|
1014 | | stackexpr '.' member |
---|
1015 | { trctx.emitLine(); $$.constant=0; $$.ident=0; SString t=$1.getString(); t+="."; t+=$3.getString(); $$.setString(t); |
---|
1016 | if ($3.constant) |
---|
1017 | trctx.out->printf("move s0,m1\nmove [m1].%s,s0\n",str($3)); |
---|
1018 | else |
---|
1019 | // trctx.out->printf("move s1,m1\nmove m[m0++],m2\nmove [m1].[m2],s0\n"); |
---|
1020 | {trctx.out->printf("move s1,m1\nmove m[m0++],m2\nmove [m1].[m2],s0\n");trstack.adjust(1);} |
---|
1021 | } |
---|
1022 | |
---|
1023 | | plusminus stackexpr '.' member |
---|
1024 | { trctx.emitLine(); $$.constant=0; $$.ident=0; SString t=$2.getString(); t+="."; t+=$4.getString(); $$.setString(t); |
---|
1025 | if ($4.constant) |
---|
1026 | trctx.out->printf("move s0,m1\n%s [m1].%s\nmove [m1].%s,s0\n", |
---|
1027 | $1.getInt()?"inc":"dec",str($4),str($4)); |
---|
1028 | else |
---|
1029 | // trctx.out->printf("move s1,m1\nmove m[m0++],m2\nmove [m1].[m2],s0\n"); |
---|
1030 | {trctx.out->printf("move s1,m1\nmove m[m0++],m2\n%s [m1].[m2]\nmove [m1].[m2],s0\n", |
---|
1031 | $1.getInt()?"inc":"dec");trstack.adjust(1);} |
---|
1032 | } |
---|
1033 | |
---|
1034 | | stackexpr '.' member plusminus |
---|
1035 | { trctx.emitLine(); $$.constant=0; $$.ident=0; SString t=$1.getString(); t+="."; t+=$3.getString(); $$.setString(t); |
---|
1036 | if ($3.constant) |
---|
1037 | trctx.out->printf("move s0,m1\nmove [m1].%s,s0\n%s [m1].%s\n", |
---|
1038 | str($3),$4.getInt()?"inc":"dec",str($3)); |
---|
1039 | else |
---|
1040 | // trctx.out->printf("move s1,m1\nmove m[m0++],m2\nmove [m1].[m2],s0\n"); |
---|
1041 | {trctx.out->printf("move s1,m1\nmove m[m0++],m2\nmove [m1].[m2],s0\n%s [m1].[m2]\n", |
---|
1042 | $4.getInt()?"inc":"dec");trstack.adjust(1);} |
---|
1043 | } |
---|
1044 | |
---|
1045 | | stackexpr '.' member assign_op expr |
---|
1046 | { trctx.emitLine(); $$.constant=0; $$.ident=0; SString t=$1.getString(); t+="."; t+=$3.getString(); $$.setString(t); |
---|
1047 | if ($3.constant) |
---|
1048 | { |
---|
1049 | int sp; |
---|
1050 | if ($5.constant) |
---|
1051 | {sp=0; trctx.out->printf("move s0,m1\n");} |
---|
1052 | else |
---|
1053 | {sp=1; trctx.out->printf("move s1,m1\n");} |
---|
1054 | t="[m1]."; t+=str($3); |
---|
1055 | handleAssignOp2($$,t.c_str(),$5,assign_op_names[$4.getInt()],sp,0); |
---|
1056 | if (sp) {trctx.out->printf("inc m0\n");trstack.adjust(1);} |
---|
1057 | } |
---|
1058 | else |
---|
1059 | { |
---|
1060 | int sp; |
---|
1061 | char *t; |
---|
1062 | if ($5.constant) |
---|
1063 | {sp=1; t="move s1,m1\nmove s0,m2\n";} |
---|
1064 | else |
---|
1065 | {sp=2; t="move s2,m1\nmove s1,m2\n";} |
---|
1066 | trctx.out->printf(t); |
---|
1067 | handleAssignOp2($$,"[m1].[m2]",$5,assign_op_names[$4.getInt()],sp,0); |
---|
1068 | trctx.out->printf("add %d,m0\n",sp); |
---|
1069 | trstack.adjust(sp); |
---|
1070 | } |
---|
1071 | } |
---|
1072 | |
---|
1073 | | stackexpr '.' member '=' stackexpr |
---|
1074 | { trctx.emitLine(); $$=$5; $$.assign=1; $$.parens=0; $$.ident=0; |
---|
1075 | if ($3.constant) |
---|
1076 | { |
---|
1077 | trctx.out->printf("move s1,m1\nmove m[m0++],s0\nmove s0,[m1].%s\n",str($3)); |
---|
1078 | trstack.adjust(1); |
---|
1079 | } |
---|
1080 | else |
---|
1081 | { |
---|
1082 | trctx.out->printf("move s2,m1\nmove s1,m2\nmove s0,[m1].[m2]\nadd 2,m0\nmove s-2,s0\n"); |
---|
1083 | trstack.adjust(2); |
---|
1084 | } |
---|
1085 | } |
---|
1086 | |
---|
1087 | | stackexpr '.' member '(' arguments ')' |
---|
1088 | { trctx.emitLine(); $$.constant=0; $$.ident=0; SString t=$1.getString(); t+="."; t+=$3.getString(); $$.setString(t); |
---|
1089 | int adj=0; |
---|
1090 | if ($5.getInt()==0) |
---|
1091 | {trctx.out->printf("dec m0\n");trstack.adjust(-1);adj=1;} |
---|
1092 | if ($3.constant) |
---|
1093 | { |
---|
1094 | trctx.out->printf("move s%d,m1\ncall [m1].%s\n",$5.getInt()+adj,str($3)); |
---|
1095 | adj+=1; |
---|
1096 | } |
---|
1097 | else |
---|
1098 | { |
---|
1099 | trctx.out->printf("move s%d,m2\nmove s%d,m1\ncall [m2].[m1]\n", |
---|
1100 | $5.getInt()+adj+1,$5.getInt()+adj); |
---|
1101 | adj+=2; |
---|
1102 | } |
---|
1103 | if (($5.getInt()+adj) > 1) |
---|
1104 | { |
---|
1105 | trctx.out->printf("add %d,m0\nxmove s%d,s0\n",$5.getInt()-1+adj,-($5.getInt()-1+adj)); |
---|
1106 | trstack.adjust($5.getInt()-1+adj); |
---|
1107 | } |
---|
1108 | } |
---|
1109 | |
---|
1110 | | stackexpr '[' expr ']' '=' expr // shortcut: expr.set(expr,expr) |
---|
1111 | { trctx.emitLine(); $$=$6; $$.assign=1; $$.parens=0; $$.ident=0; |
---|
1112 | if ($3.constant) |
---|
1113 | { |
---|
1114 | if ($6.constant) |
---|
1115 | {trctx.out->printf("move s0,m1\ncall [m1].\"set\",%s,%s\ninc m0\n",litstr($3),litstr($6));$$=$6;trstack.adjust(+1);} |
---|
1116 | else |
---|
1117 | {trctx.out->printf("move s1,m1\npush s0\nmove %s,s1\ncall [m1].\"set\"\nadd 2,m0\nmove s-2,s0\n",litstr($3));trstack.adjust(+1);} |
---|
1118 | } |
---|
1119 | else |
---|
1120 | { |
---|
1121 | if ($6.constant) |
---|
1122 | {trctx.out->printf("move s1,m1\npush %s\ncall [m1].\"set\"\nadd 3,m0\n",litstr($6)); trstack.adjust(+2);} |
---|
1123 | else |
---|
1124 | {trctx.out->printf("move s2,m1\ncall [m1].\"set\"\nadd 2,m0\nmove s-2,s0\n"); trstack.adjust(+2);} |
---|
1125 | } |
---|
1126 | } |
---|
1127 | |
---|
1128 | | stackexpr '[' expr ']' /* shortcut: expr.get(expr) */ |
---|
1129 | { trctx.emitLine(); $$.constant=0; $$.ident=0; SString t=$1.getString(); t+=".get"; $$.setString(t); |
---|
1130 | if ($3.constant) |
---|
1131 | { |
---|
1132 | trctx.out->printf("move s0,m1\ncall [m1].\"get\",%s\n",litstr($3)); |
---|
1133 | } |
---|
1134 | else |
---|
1135 | { |
---|
1136 | trctx.out->printf("move s1,m1\ncall [m1].\"get\"\ninc m0\nmove s-1,s0\n"); |
---|
1137 | trstack.adjust(+1); |
---|
1138 | } |
---|
1139 | } |
---|
1140 | |
---|
1141 | | IDENT '=' expr { trctx.emitLine(); $$=$3; $$.assign=1; $$.ident=0; |
---|
1142 | int loc=trstack.getVariableLocation($1.getString()); |
---|
1143 | if (loc!=TranslatorStack::NOTFOUND) |
---|
1144 | { |
---|
1145 | if ($3.constant) |
---|
1146 | trctx.out->printf("move %s,s%d\n",litstr($3),loc-trstack.currentPos()); |
---|
1147 | else |
---|
1148 | trctx.out->printf("move s0,s%d\n",loc-trstack.currentPos()); |
---|
1149 | } |
---|
1150 | else if (globalOk($1)) { $$=$3; $$.ident=0; $$.assign=1; |
---|
1151 | if ($3.constant) trctx.out->printf("move %s,@%s\n",litstr($3),str($1)); |
---|
1152 | else trctx.out->printf("move s0,@%s\n",str($1));} |
---|
1153 | else {trctx.err->printf("undefined variable: '%s'\n",str($1)); return 1;} |
---|
1154 | } |
---|
1155 | |
---|
1156 | | OBJNAME '[' expr ']' /* shortcut: OBJNAME.get(expr) */ |
---|
1157 | { trctx.emitLine(); $$.constant=0; $$.ident=0; SString t=$1.getString(); t+=".get"; $$.setString(t); |
---|
1158 | if ($3.constant) |
---|
1159 | { |
---|
1160 | trctx.out->printf("dec m0\ncall %s.get,%s\n",str($1),litstr($3)); |
---|
1161 | trstack.adjust(-1); |
---|
1162 | } |
---|
1163 | else |
---|
1164 | { |
---|
1165 | trctx.out->printf("call %s.get\n",str($1)); |
---|
1166 | } |
---|
1167 | } |
---|
1168 | |
---|
1169 | | IDENT '(' arguments ')' |
---|
1170 | { |
---|
1171 | trctx.emitLine(); $$.constant=0; $$.ident=0; $$.setString("function call"); |
---|
1172 | if ($3.getInt()==0) |
---|
1173 | {trctx.out->printf("dec m0\n");trstack.adjust(-1);} |
---|
1174 | trctx.out->printf("call :%s\n",str($1)); |
---|
1175 | if ($3.getInt()>1) |
---|
1176 | { |
---|
1177 | trctx.out->printf("add %d,m0\nxmove s%d,s0\n",$3.getInt()-1,-($3.getInt()-1)); |
---|
1178 | trstack.adjust($3.getInt()-1); |
---|
1179 | } |
---|
1180 | } |
---|
1181 | |
---|
1182 | | '[' {trctx.emitLine(); $$.ident=0; trctx.out->printf("add -2,m0\ncall Vector.new\nmove s0,s1\n");trstack.adjust(-2);} // s1=vector, s0=nieuzywane ale zarezerwowane zeby nie przesuwac stosu przy kazdym elemencie (trafia tu wartosc zwracana przez add/set) |
---|
1183 | v_elements ']' |
---|
1184 | {$$.constant=0; trctx.out->printf("inc m0\n");trstack.adjust(1);} |
---|
1185 | |
---|
1186 | | '{' {trctx.emitLine(); $$.ident=0; trctx.out->printf("add -2,m0\ncall Dictionary.new\nmove s0,s1\n");trstack.adjust(-2);} // s1=dict, s0=nieuzywane ale zarezerwowane zeby nie przesuwac stosu przy kazdym elemencie (trafia tu wartosc zwracana przez add/set) |
---|
1187 | d_elements '}' |
---|
1188 | {$$.constant=0; trctx.out->printf("inc m0\n"); trstack.adjust(1);} |
---|
1189 | |
---|
1190 | // | '&' stackexpr {trctx.out->printf("call Ref.new\n");} |
---|
1191 | |
---|
1192 | | '&' IDENT { |
---|
1193 | trctx.emitLine(); $$.ident=0; |
---|
1194 | int loc=trstack.getVariableLocation($2.getString()); |
---|
1195 | if (loc!=TranslatorStack::NOTFOUND) |
---|
1196 | { |
---|
1197 | trctx.out->printf("push &%d\n",loc-trstack.currentPos());trstack.adjust(-1); |
---|
1198 | } |
---|
1199 | else if (globalOk($2)) |
---|
1200 | { |
---|
1201 | trctx.out->printf("gpush &@%s\ncall Ref.newO\ninc m0\nmove s-1,s0\n",str($2)); |
---|
1202 | trstack.adjust(-1); |
---|
1203 | } |
---|
1204 | else {trctx.err->printf("undefined variable: '%s'\n",str($1)); return 1;} |
---|
1205 | } |
---|
1206 | |
---|
1207 | | '&' OBJNAME '.' member { |
---|
1208 | trctx.emitLine(); $$.ident=0; |
---|
1209 | if ($4.constant) |
---|
1210 | { |
---|
1211 | trctx.out->printf("dec m0\ncall Ref.newO,%s.*,%s:%s\n",str($2),str($2),str($4)); |
---|
1212 | trstack.adjust(-1); |
---|
1213 | } |
---|
1214 | else |
---|
1215 | { |
---|
1216 | trctx.out->printf("call Ref.newO,%s.*,s0\n",str($2)); |
---|
1217 | } |
---|
1218 | } |
---|
1219 | |
---|
1220 | | '&' '(' stackexpr ')' '.' member { |
---|
1221 | trctx.emitLine(); $$.ident=0; |
---|
1222 | if ($6.constant) |
---|
1223 | { |
---|
1224 | trctx.out->printf("call Ref.newO,s0,%s\n",litstr($6)); |
---|
1225 | } |
---|
1226 | else |
---|
1227 | { |
---|
1228 | trctx.out->printf("call Ref.newO,s1,s0\ninc m0\nmove s-1,s0\n"); |
---|
1229 | trstack.adjust(1); |
---|
1230 | } |
---|
1231 | } |
---|
1232 | |
---|
1233 | | '(' stackexpr ',' stackexpr ',' stackexpr ')' { |
---|
1234 | trctx.emitLine(); $$.ident=0; |
---|
1235 | trctx.out->printf("call XYZ.new\nadd 2,m0\nmove s-2,s0\n");trstack.adjust(2);} |
---|
1236 | ; |
---|
1237 | |
---|
1238 | v_elements: /* empty */ |
---|
1239 | | v_element |
---|
1240 | | v_elements ',' v_element |
---|
1241 | ; |
---|
1242 | |
---|
1243 | d_elements: /* empty */ |
---|
1244 | | d_element |
---|
1245 | | d_elements ',' d_element |
---|
1246 | ; |
---|
1247 | |
---|
1248 | v_element: expr |
---|
1249 | { |
---|
1250 | if ($1.constant) |
---|
1251 | trctx.out->printf("move s1,m1\ncall [m1].Vector:add,%s\n",litstr($1)); |
---|
1252 | else |
---|
1253 | {trctx.out->printf("move s2,m1\ncall [m1].Vector:add\ninc m0\n");trstack.adjust(1);} |
---|
1254 | } |
---|
1255 | ; |
---|
1256 | |
---|
1257 | d_element: expr ':' expr |
---|
1258 | { |
---|
1259 | if ($1.constant) |
---|
1260 | { |
---|
1261 | if ($3.constant) |
---|
1262 | trctx.out->printf("move s1,m1\ncall [m1].Dictionary:set,%s,%s\n",litstr($1),litstr($3)); |
---|
1263 | else |
---|
1264 | {trctx.out->printf("move s2,m1\nmove %s,s1\ncall [m1].Dictionary:set\ninc m0\n",litstr($1));trstack.adjust(1);} |
---|
1265 | } |
---|
1266 | else |
---|
1267 | { |
---|
1268 | if ($3.constant) |
---|
1269 | {trctx.out->printf("move s2,m1\nmove s0,s1\nmove %s,s0\ncall [m1].Dictionary:set\ninc m0\n",litstr($3));trstack.adjust(1);} |
---|
1270 | else |
---|
1271 | {trctx.out->printf("move s3,m1\ncall [m1].Dictionary:set\nadd 2,m0\n");trstack.adjust(2);} |
---|
1272 | } |
---|
1273 | } |
---|
1274 | ; |
---|
1275 | |
---|
1276 | member: IDENT { $$=$1; $$.constant=1;} |
---|
1277 | | OBJNAME ':' IDENT { SString t=$1.getString();t+=":";t+=$3.getString(); |
---|
1278 | $$.setString(t);$$.constant=1;} |
---|
1279 | | '[' stackexpr ']' { SString t="["; t+=$2.getString(); t+="]"; |
---|
1280 | $$.setString(t); $$.constant=0;} |
---|
1281 | |
---|
1282 | arguments: /* empty */ { $$.setInt(0); } |
---|
1283 | | stackexpr { $$.setInt(1); } |
---|
1284 | | arguments ',' stackexpr {$$.setInt($1.getInt()+1);} |
---|
1285 | ; |
---|
1286 | |
---|
1287 | %% |
---|
1288 | |
---|
1289 | SString makeLitString(const ExtValue& val) |
---|
1290 | { |
---|
1291 | if (val.type!=TString) |
---|
1292 | return val.getString(); |
---|
1293 | SString s=val.getString(); |
---|
1294 | int len=s.len(); |
---|
1295 | SString ret((len*11)/10+10); |
---|
1296 | ret+='\"'; |
---|
1297 | const char*t=s.c_str(); |
---|
1298 | while(len>0) |
---|
1299 | { |
---|
1300 | switch(*t) |
---|
1301 | { |
---|
1302 | case '\n': ret+="\\n"; break; |
---|
1303 | case '\r': ret+="\\r"; break; |
---|
1304 | case '\t': ret+="\\t"; break; |
---|
1305 | default: ret+=*t; |
---|
1306 | } |
---|
1307 | t++; len--; |
---|
1308 | } |
---|
1309 | ret+='\"'; |
---|
1310 | return ret; |
---|
1311 | } |
---|
1312 | |
---|
1313 | static void yyprint (FILE *file,int type,YYSTYPE value) |
---|
1314 | { |
---|
1315 | fprintf(file,"(%s)%s",str(value),value.constant?"c":""); |
---|
1316 | } |
---|
1317 | |
---|
1318 | int yyerror (const char *s) /* Called by yyparse on error */ |
---|
1319 | { |
---|
1320 | trctx.err->printf ("%s\n",s); |
---|
1321 | return 0; // w przykladach do bisona tez nie dali returna... |
---|
1322 | } |
---|
1323 | |
---|
1324 | void handleTwoArg(YYSTYPE& result,const YYSTYPE& arg1,const YYSTYPE& arg2, |
---|
1325 | int optoken,const char* opname,bool negarg2,bool uniq) |
---|
1326 | { |
---|
1327 | trctx.emitLine(); |
---|
1328 | result.ident=false; |
---|
1329 | if (arg1.constant && arg2.constant) |
---|
1330 | { |
---|
1331 | result=arg1; |
---|
1332 | switch(optoken) |
---|
1333 | { |
---|
1334 | case '+': result+=arg2; break; |
---|
1335 | case '-': result-=arg2; break; |
---|
1336 | case '*': result*=arg2; break; |
---|
1337 | case '/': result/=arg2; break; |
---|
1338 | case '%': result%=arg2; break; |
---|
1339 | case '&': result.setInt(arg1.getInt() & arg2.getInt()); break; |
---|
1340 | case '|': result.setInt(arg1.getInt() | arg2.getInt()); break; |
---|
1341 | case LSHIFT: result.setInt(arg1.getInt() << arg2.getInt()); break; |
---|
1342 | case RSHIFT: result.setInt(arg1.getInt() >> arg2.getInt()); break; |
---|
1343 | } |
---|
1344 | } |
---|
1345 | else |
---|
1346 | { |
---|
1347 | //TODO: prawie kazde uzycie uniq jest niepotrzebne bo typem rzadko bedzie vector, ale w wiekszosci miejsc okreslenie typu wartosci |
---|
1348 | // byloby bardzo trudne lub niemozliwe. mozna byloby natomiast zapamietywac przy parsowaniu czy dana wartosc na stosie jest |
---|
1349 | // skopiowana ze zmiennej/pola czy jest wynikiem wczesniejszej operacji co pozwoliloby na likwidacje bardzo wielu uniq |
---|
1350 | result.constant=0; |
---|
1351 | result.assign=arg1.assign || arg2.assign; |
---|
1352 | result.parens=0; |
---|
1353 | result.setString(opname); |
---|
1354 | if (arg1.constant) |
---|
1355 | trctx.out->printf("move %s,m1\n%s%s s0,m1\nmove m1,s0\n",litstr(arg1), |
---|
1356 | negarg2?"neg s0\n":"", |
---|
1357 | opname); |
---|
1358 | else if (arg2.constant) |
---|
1359 | { |
---|
1360 | if (negarg2) |
---|
1361 | trctx.out->printf("%s %d,s0\n",opname,-arg2.getInt()); |
---|
1362 | else |
---|
1363 | trctx.out->printf("%s%s %s,s0\n",(uniq?"uniq s0\n":""),opname,litstr(arg2)); |
---|
1364 | } |
---|
1365 | else |
---|
1366 | { |
---|
1367 | trctx.out->printf("%s%s%s s0,s1\ninc m0\n", |
---|
1368 | uniq?"uniq s1\n":"", |
---|
1369 | negarg2?"neg s0\n":"", |
---|
1370 | opname); |
---|
1371 | trstack.adjust(+1); |
---|
1372 | } |
---|
1373 | } |
---|
1374 | } |
---|
1375 | |
---|
1376 | bool handleAssignOp(YYSTYPE& result,const YYSTYPE& var,const YYSTYPE& arg,const char* opname) |
---|
1377 | { |
---|
1378 | int loc; if (variableOk(result,var,loc)) |
---|
1379 | { |
---|
1380 | loc-=trstack.currentPos(); |
---|
1381 | if (arg.constant) |
---|
1382 | { |
---|
1383 | trctx.out->printf("%s %s,s%d\npush s%d\n",opname,litstr(arg),loc,loc); |
---|
1384 | trstack.adjust(-1); |
---|
1385 | } |
---|
1386 | else |
---|
1387 | trctx.out->printf("%s s0,s%d\nmove s%d,s0\n",opname,loc,loc); |
---|
1388 | return 1; |
---|
1389 | } |
---|
1390 | return 0; |
---|
1391 | } |
---|
1392 | |
---|
1393 | bool handleAssignOp2(YYSTYPE& result,const char *var,const YYSTYPE& arg,const char* opname,int stackpos,bool push) |
---|
1394 | { |
---|
1395 | if (arg.constant) |
---|
1396 | { |
---|
1397 | trctx.out->printf("%s %s,%s\n",opname,litstr(arg),var); |
---|
1398 | if (!push) |
---|
1399 | trctx.out->printf("move %s,s%d\n",var,stackpos); |
---|
1400 | else |
---|
1401 | { |
---|
1402 | trctx.out->printf("push %s\n",var); |
---|
1403 | trstack.adjust(-1); |
---|
1404 | } |
---|
1405 | } |
---|
1406 | else |
---|
1407 | trctx.out->printf("%s s0,%s\nmove %s,s%d\n",opname,var,var,stackpos); |
---|
1408 | return 1; |
---|
1409 | } |
---|
1410 | |
---|
1411 | bool handleCompare(YYSTYPE& result,const YYSTYPE& arg1,const YYSTYPE& arg2,ExtValue::CmpOperator op,const char* opname) |
---|
1412 | { |
---|
1413 | trctx.emitLine(); |
---|
1414 | result.ident=0; |
---|
1415 | if (arg1.constant && arg2.constant) |
---|
1416 | { |
---|
1417 | result.constant=1; |
---|
1418 | ExtValue::CompareResult cmp=arg1.compare(arg2); |
---|
1419 | ExtValue::CmpContext context; |
---|
1420 | context.v1=&arg1; |
---|
1421 | context.v2=&arg2; |
---|
1422 | int ret=ExtValue::interpretCompare(op,cmp,&context); |
---|
1423 | if (ret<0) |
---|
1424 | result.setEmpty();//return false; |
---|
1425 | else |
---|
1426 | result.setInt(ret); |
---|
1427 | return true; |
---|
1428 | } |
---|
1429 | else |
---|
1430 | { |
---|
1431 | result.constant=0; |
---|
1432 | result.assign=arg1.assign || arg2.assign; |
---|
1433 | result.parens=0; |
---|
1434 | result.setString(opname); |
---|
1435 | if (arg1.constant) |
---|
1436 | trctx.out->printf("setif %s,%s,s0,s0\n",litstr(arg1),opname); |
---|
1437 | else if (arg2.constant) |
---|
1438 | trctx.out->printf("setif s0,%s,%s,s0\n",opname,litstr(arg2)); |
---|
1439 | else |
---|
1440 | { |
---|
1441 | trctx.out->printf("setif s1,%s,s0,s1\ninc m0\n",opname); |
---|
1442 | trstack.adjust(+1); |
---|
1443 | } |
---|
1444 | return true; |
---|
1445 | } |
---|
1446 | } |
---|
1447 | |
---|
1448 | static bool resultIsRelaxedEqual(ExtValue::CompareResult res) |
---|
1449 | { |
---|
1450 | return (res==ExtValue::ResultEqual)||(res==ExtValue::ResultEqualUnordered)||(res==ExtValue::ResultUnequal_RelaxedEqual); |
---|
1451 | } |
---|
1452 | |
---|
1453 | bool variableOk(TokenValue &tok, const TokenValue& var,int &loc) |
---|
1454 | { |
---|
1455 | loc=trstack.getVariableLocation(var.getString()); |
---|
1456 | if (loc != TranslatorStack::NOTFOUND) |
---|
1457 | {tok.setInt(loc); tok.constant=0; |
---|
1458 | return 1;} |
---|
1459 | return 0; |
---|
1460 | } |
---|
1461 | |
---|
1462 | bool globalOk(const TokenValue& var) |
---|
1463 | { |
---|
1464 | SymTabEntry* found=trstack.globals.find(var.getString()); |
---|
1465 | if (found) return true; |
---|
1466 | return framscriptIsGlobalName(var.getString().c_str()); |
---|
1467 | } |
---|
1468 | |
---|
1469 | void badVariable(TokenValue &tok, const TokenValue& var) |
---|
1470 | { |
---|
1471 | tok=var; tok.constant=1; |
---|
1472 | trctx.err->printf("undefined variable '%s'\n",str(var)); |
---|
1473 | } |
---|
1474 | |
---|
1475 | bool doBreak(int level) |
---|
1476 | { |
---|
1477 | if (trstack.loops.size()<level) |
---|
1478 | {trctx.err->printf("invalid 'break'\n"); return 0;} |
---|
1479 | LoopInfo* li=trstack.loops.getLoop(level-1); |
---|
1480 | if (li->location != trstack.currentPos()) |
---|
1481 | trctx.out->printf("add %d,m0\n",li->location-trstack.currentPos()); |
---|
1482 | trctx.out->printf("jump :_loop_end_%d\n",li->id); |
---|
1483 | return 1; |
---|
1484 | } |
---|
1485 | |
---|
1486 | bool doContinue(int level) |
---|
1487 | { |
---|
1488 | if (trstack.loops.size()<level) |
---|
1489 | {trctx.err->printf("invalid 'continue'\n"); return 0;} |
---|
1490 | LoopInfo* li=trstack.loops.getLoop(level-1); |
---|
1491 | if (li->location != trstack.currentPos()) |
---|
1492 | trctx.out->printf("add %d,m0\n",li->location-trstack.currentPos()); |
---|
1493 | trctx.out->printf("jump :_loop_%d\n",li->id); |
---|
1494 | return 1; |
---|
1495 | } |
---|
1496 | |
---|
1497 | int lookupToken(char *s) |
---|
1498 | { |
---|
1499 | int len=strlen(s); |
---|
1500 | int i; |
---|
1501 | const char *t; |
---|
1502 | for (i = 0; i < YYNTOKENS; i++) |
---|
1503 | { |
---|
1504 | t=yytname[i]; |
---|
1505 | if (t && (t[0]=='"') |
---|
1506 | && (!strncmp(t+1,s,len)) |
---|
1507 | && (t[len+1]=='"') |
---|
1508 | && (t[len+2] == 0)) |
---|
1509 | return yytoknum[i]; |
---|
1510 | } |
---|
1511 | return -1; |
---|
1512 | } |
---|
1513 | |
---|
1514 | void warnTruthValue(const TokenValue& t) |
---|
1515 | { |
---|
1516 | if (t.assign && (!t.parens)) |
---|
1517 | FMprintf("FramScriptCompiler","translate",FMLV_WARN,"Assignment used as truth value, use ((double parens)) if you really mean it"); |
---|
1518 | } |
---|
1519 | |
---|
1520 | void outFunName(const TokenValue& t) |
---|
1521 | { |
---|
1522 | if (trctx.functiontmplabel<0) |
---|
1523 | { |
---|
1524 | trctx.functiontmplabel=trctx.labelcounter++; |
---|
1525 | trctx.out->printf("jump :_skipfun_%d\n",trctx.functiontmplabel); |
---|
1526 | } |
---|
1527 | trctx.out->printf(":%s\n",str(t)); |
---|
1528 | } |
---|
1529 | |
---|
1530 | bool evalVariable(TokenValue &tok,const TokenValue &var) |
---|
1531 | { |
---|
1532 | int loc; |
---|
1533 | if (variableOk(tok,var,loc)) |
---|
1534 | { |
---|
1535 | trctx.out->printf("push s%d\n",loc-trstack.currentPos()); |
---|
1536 | trstack.adjust(-1); |
---|
1537 | return true; |
---|
1538 | } |
---|
1539 | else if (globalOk(var)) |
---|
1540 | { |
---|
1541 | trctx.out->printf("push @%s\n",var.getString().c_str()); |
---|
1542 | trstack.adjust(-1); |
---|
1543 | return true; |
---|
1544 | } |
---|
1545 | else |
---|
1546 | { |
---|
1547 | badVariable(tok,var); return false; |
---|
1548 | } |
---|
1549 | } |
---|