## lustrec/src/parserLustreSpec.mly @ d50b0dc0

1 | e2068500 | Temesghen Kahsai | %{ |
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2 | ```
(********************************************************************)
``` |
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3 | ```
(* *)
``` |
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4 | ```
(* The LustreC compiler toolset / The LustreC Development Team *)
``` |
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5 | ```
(* Copyright 2012 - -- ONERA - CNRS - INPT *)
``` |
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6 | ```
(* *)
``` |
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7 | ```
(* LustreC is free software, distributed WITHOUT ANY WARRANTY *)
``` |
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8 | ```
(* under the terms of the GNU Lesser General Public License *)
``` |
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9 | ```
(* version 2.1. *)
``` |
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10 | ```
(* *)
``` |
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11 | ```
(********************************************************************)
``` |
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12 | |||

13 | open Utils |
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14 | open Corelang |
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15 | open LustreSpec |
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16 | |||

17 | let mkexpr x = mkexpr (Location.symbol_rloc ()) x |
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18 | let mkpredef_call x = mkpredef_call (Location.symbol_rloc ()) x |
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19 | let mkpredef_unary_call x = mkpredef_unary_call (Location.symbol_rloc ()) x |
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20 | |||

21 | let mkeexpr x = mkeexpr (Location.symbol_rloc ()) x |
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22 | ```
(*
``` |
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23 | ```
let mkepredef_call x = mkepredef_call (Location.symbol_rloc ()) x
``` |
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24 | ```
let mkepredef_unary_call x = mkepredef_unary_call (Location.symbol_rloc ()) x
``` |
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25 | ```
*)
``` |
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26 | |||

27 | let mktyp x = mktyp (Location.symbol_rloc ()) x |
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28 | let mkvar_decl x = mkvar_decl (Location.symbol_rloc ()) x |
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29 | let mkclock x = mkclock (Location.symbol_rloc ()) x |
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30 | |||

31 | %} |
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32 | |||

33 | |||

34 | %token <int> INT |
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35 | %token <string> REAL |
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36 | %token <float> FLOAT |
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37 | %token <string> STRING |
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38 | %token TRUE FALSE STATELESS ASSERT INCLUDE QUOTE |
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39 | %token <string> IDENT |
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40 | %token LPAR RPAR SCOL COL COMMA COLCOL |
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41 | %token AMPERAMPER BARBAR NOT POWER |
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42 | %token IF THEN ELSE |
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43 | %token UCLOCK DCLOCK PHCLOCK TAIL |
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44 | %token MERGE FBY WHEN WHENNOT EVERY |
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45 | %token NODE LET TEL RETURNS VAR IMPORTED SENSOR ACTUATOR WCET TYPE CONST |
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46 | %token TINT TFLOAT TREAL TBOOL TCLOCK |
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47 | %token RATE DUE |
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48 | %token EQ LT GT LTE GTE NEQ |
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49 | %token AND OR XOR IMPL |
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50 | %token MULT DIV MOD |
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51 | %token MINUS PLUS UMINUS |
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52 | %token PRE ARROW |
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53 | %token EOF |
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54 | %token REQUIRES ENSURES OBSERVER |
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55 | %token INVARIANT BEHAVIOR ASSUMES |
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56 | %token EXISTS FORALL |
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57 | |||

58 | %nonassoc prec_exists prec_forall |
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59 | %nonassoc COMMA POWER |
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60 | %left MERGE IF |
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61 | %nonassoc ELSE |
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62 | %right ARROW FBY |
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63 | %left WHEN WHENNOT UCLOCK DCLOCK PHCLOCK |
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64 | %right COLCOL |
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65 | %right IMPL |
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66 | %left OR XOR BARBAR |
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67 | %left AND AMPERAMPER |
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68 | %left NOT |
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69 | %nonassoc EQ LT GT LTE GTE NEQ |
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70 | %left MINUS PLUS |
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71 | %left MULT DIV MOD |
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72 | %left PRE |
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73 | %nonassoc UMINUS |
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74 | |||

75 | %start lustre_annot |
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76 | d50b0dc0 | Temesghen Kahsai | %type <LustreSpec.ident -> LustreSpec.expr_annot> lustre_annot |

77 | e2068500 | Temesghen Kahsai | |

78 | %start lustre_spec |
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79 | %type <LustreSpec.node_annot> lustre_spec |
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80 | |||

81 | ```
%%
``` |
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82 | |||

83 | lustre_spec: |
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84 | | contract EOF { $1 } |
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85 | |||

86 | contract: |
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87 | requires ensures behaviors { { requires = $1; ensures = $2; behaviors = $3; } } |
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88 | |||

89 | requires: |
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90 | { [] } |
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91 | | REQUIRES qexpr SCOL requires { $2::$4 } |
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92 | |||

93 | ensures: |
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94 | { [] } |
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95 | | ENSURES qexpr SCOL ensures { (EnsuresExpr $2) :: $4 } |
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96 | | OBSERVER IDENT LPAR tuple_qexpr RPAR SCOL ensures { (SpecObserverNode($2,$4)) :: $7 } |
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97 | |||

98 | behaviors: |
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99 | { [] } |
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100 | | BEHAVIOR IDENT COL assumes ensures behaviors { ($2,$4,$5)::$6 } |
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101 | |||

102 | assumes: |
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103 | { [] } |
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104 | | ASSUMES qexpr SCOL assumes { $2::$4 } |
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105 | |||

106 | tuple_qexpr: |
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107 | | qexpr COMMA qexpr {[$3;$1]} |
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108 | | tuple_qexpr COMMA qexpr {$3::$1} |
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109 | |||

110 | |||

111 | tuple_expr: |
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112 | expr COMMA expr {[$3;$1]} |
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113 | | tuple_expr COMMA expr {$3::$1} |
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114 | |||

115 | // Same as tuple expr but accepting lists with single element |
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116 | array_expr: |
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117 | expr {[$1]} |
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118 | | expr COMMA array_expr {$1::$3} |
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119 | |||

120 | dim_list: |
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121 | dim RBRACKET { fun base -> mkexpr (Expr_access (base, $1)) } |
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122 | | dim RBRACKET LBRACKET dim_list { fun base -> $4 (mkexpr (Expr_access (base, $1))) } |
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123 | |||

124 | expr: |
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125 | /* constants */ |
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126 | INT {mkexpr (Expr_const (Const_int $1))} |
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127 | | REAL {mkexpr (Expr_const (Const_real $1))} |
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128 | | FLOAT {mkexpr (Expr_const (Const_float $1))} |
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129 | /* Idents or type enum tags */ |
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130 | | IDENT { |
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131 | if Hashtbl.mem tag_table $1 |
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132 | then mkexpr (Expr_const (Const_tag $1)) |
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133 | else mkexpr (Expr_ident $1)} |
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134 | | LPAR ANNOT expr RPAR |
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135 | {update_expr_annot $3 $2} |
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136 | | LPAR expr RPAR |
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137 | {$2} |
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138 | | LPAR tuple_expr RPAR |
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139 | {mkexpr (Expr_tuple (List.rev $2))} |
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140 | |||

141 | /* Array expressions */ |
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142 | | LBRACKET array_expr RBRACKET { mkexpr (Expr_array $2) } |
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143 | | expr POWER dim { mkexpr (Expr_power ($1, $3)) } |
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144 | | expr LBRACKET dim_list { $3 $1 } |
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145 | |||

146 | /* Temporal operators */ |
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147 | | PRE expr |
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148 | {mkexpr (Expr_pre $2)} |
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149 | | expr ARROW expr |
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150 | {mkexpr (Expr_arrow ($1,$3))} |
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151 | | expr FBY expr |
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152 | {(*mkexpr (Expr_fby ($1,$3))*) |
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153 | mkexpr (Expr_arrow ($1, mkexpr (Expr_pre $3)))} |
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154 | | expr WHEN IDENT |
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155 | {mkexpr (Expr_when ($1,$3,tag_true))} |
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156 | | expr WHENNOT IDENT |
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157 | {mkexpr (Expr_when ($1,$3,tag_false))} |
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158 | | expr WHEN IDENT LPAR IDENT RPAR |
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159 | {mkexpr (Expr_when ($1, $5, $3))} |
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160 | | MERGE IDENT handler_expr_list |
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161 | {mkexpr (Expr_merge ($2,$3))} |
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162 | |||

163 | /* Applications */ |
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164 | | IDENT LPAR expr RPAR |
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165 | {mkexpr (Expr_appl ($1, $3, None))} |
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166 | | IDENT LPAR expr RPAR EVERY IDENT |
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167 | {mkexpr (Expr_appl ($1, $3, Some ($6, tag_true)))} |
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168 | | IDENT LPAR expr RPAR EVERY IDENT LPAR IDENT RPAR |
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169 | {mkexpr (Expr_appl ($1, $3, Some ($8, $6))) } |
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170 | | IDENT LPAR tuple_expr RPAR |
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171 | {mkexpr (Expr_appl ($1, mkexpr (Expr_tuple (List.rev $3)), None))} |
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172 | | IDENT LPAR tuple_expr RPAR EVERY IDENT |
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173 | {mkexpr (Expr_appl ($1, mkexpr (Expr_tuple (List.rev $3)), Some ($6, tag_true))) } |
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174 | | IDENT LPAR tuple_expr RPAR EVERY IDENT LPAR IDENT RPAR |
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175 | {mkexpr (Expr_appl ($1, mkexpr (Expr_tuple (List.rev $3)), Some ($8, $6))) } |
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176 | |||

177 | /* Boolean expr */ |
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178 | | expr AND expr |
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179 | {mkpredef_call "&&" [$1;$3]} |
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180 | | expr AMPERAMPER expr |
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181 | {mkpredef_call "&&" [$1;$3]} |
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182 | | expr OR expr |
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183 | {mkpredef_call "||" [$1;$3]} |
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184 | | expr BARBAR expr |
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185 | {mkpredef_call "||" [$1;$3]} |
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186 | | expr XOR expr |
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187 | {mkpredef_call "xor" [$1;$3]} |
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188 | | NOT expr |
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189 | {mkpredef_unary_call "not" $2} |
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190 | | expr IMPL expr |
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191 | {mkpredef_call "impl" [$1;$3]} |
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192 | |||

193 | /* Comparison expr */ |
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194 | | expr EQ expr |
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195 | {mkpredef_call "=" [$1;$3]} |
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196 | | expr LT expr |
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197 | {mkpredef_call "<" [$1;$3]} |
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198 | | expr LTE expr |
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199 | {mkpredef_call "<=" [$1;$3]} |
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200 | | expr GT expr |
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201 | {mkpredef_call ">" [$1;$3]} |
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202 | | expr GTE expr |
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203 | {mkpredef_call ">=" [$1;$3]} |
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204 | | expr NEQ expr |
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205 | {mkpredef_call "!=" [$1;$3]} |
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206 | |||

207 | /* Arithmetic expr */ |
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208 | | expr PLUS expr |
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209 | {mkpredef_call "+" [$1;$3]} |
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210 | | expr MINUS expr |
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211 | {mkpredef_call "-" [$1;$3]} |
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212 | | expr MULT expr |
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213 | {mkpredef_call "*" [$1;$3]} |
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214 | | expr DIV expr |
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215 | {mkpredef_call "/" [$1;$3]} |
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216 | | MINUS expr %prec UMINUS |
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217 | {mkpredef_unary_call "uminus" $2} |
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218 | | expr MOD expr |
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219 | {mkpredef_call "mod" [$1;$3]} |
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220 | |||

221 | /* If */ |
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222 | | IF expr THEN expr ELSE expr |
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223 | {mkexpr (Expr_ite ($2, $4, $6))} |
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224 | |||

225 | |||

226 | handler_expr_list: |
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227 | { [] } |
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228 | | handler_expr handler_expr_list { $1 :: $2 } |
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229 | |||

230 | handler_expr: |
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231 | LPAR IDENT ARROW expr RPAR { ($2, $4) } |
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232 | |||

233 | qexpr: |
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234 | | expr { mkeexpr [] $1 } |
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235 | /* Quantifiers */ |
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236 | | EXISTS vdecl SCOL qexpr %prec prec_exists { extend_eepxr (Exists, $2) $4 } |
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237 | | FORALL vdecl SCOL qexpr %prec prec_forall { extend_eepxr (Forall, $2) $4 } |
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238 | |||

239 | vdecl: |
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240 | | ident_list COL typ clock |
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241 | {List.map mkvar_decl (List.map (fun id -> (id, $3, $4, false)) $1)} |
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242 | | CONST ident_list COL typ clock |
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243 | {List.map mkvar_decl (List.map (fun id -> (id, $4, $5, true)) $2)} |
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244 | |||

245 | |||

246 | ident_list: |
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247 | IDENT {[$1]} |
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248 | | ident_list COMMA IDENT {$3::$1} |
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249 | |||

250 | |||

251 | typ: |
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252 | {mktyp Tydec_any} |
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253 | | TINT {mktyp Tydec_int} |
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254 | | IDENT { |
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255 | ```
try
``` |
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256 | mktyp (Hashtbl.find Corelang.type_table (Tydec_const $1)) |
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257 | with Not_found -> raise (Corelang.Error (Location.symbol_rloc(), Corelang.Unbound_symbol ("type " ^ $1))) |
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258 | ```
}
``` |
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259 | | TFLOAT {mktyp Tydec_float} |
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260 | | TREAL {mktyp Tydec_real} |
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261 | | TBOOL {mktyp Tydec_bool} |
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262 | | TCLOCK {mktyp (Tydec_clock Tydec_bool) } |
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263 | | typ POWER INT {mktyp Tydec_any (*(mktyptuple $3 $1)*)} |
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264 | | typ POWER IDENT {mktyp Tydec_any (*(mktyptuple (try |
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265 | match get_const $3 with Const_int i -> i with _ -> failwith "Const power error") $1)*)} |
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266 | |||

267 | clock: |
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268 | {mkclock Ckdec_any} |
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269 | | when_list |
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270 | {mkclock (Ckdec_bool (List.rev $1))} |
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271 | |||

272 | when_cond: |
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273 | WHEN IDENT {($2, tag_true)} |
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274 | | WHENNOT IDENT {($2, tag_false)} |
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275 | |||

276 | when_list: |
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277 | when_cond {[$1]} |
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278 | | when_list when_cond {$2::$1} |
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279 | |||

280 | |||

281 | const: |
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282 | | INT {Const_int $1} |
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283 | | REAL {Const_real $1} |
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284 | | FLOAT {Const_float $1} |
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285 | | TRUE {Const_bool true} |
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286 | | FALSE {Const_bool false} |
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287 | | STRING {Const_string $1} |
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288 | |||

289 | lustre_annot: |
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290 | d50b0dc0 | Temesghen Kahsai | lustre_annot_list EOF { fun node_id -> $1 } |

291 | e2068500 | Temesghen Kahsai | |

292 | lustre_annot_list: |
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293 | { [] } |
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294 | | kwd COL expr SCOL lustre_annot_list { ($1,$3)::$5 } |
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295 | | IDENT COL expr SCOL lustre_annot_list { ([$1],$3)::$5 } |
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296 | | INVARIANT COL expr SCOL lustre_annot_list{ (["invariant"],$3)::$5 } |
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297 | | OBSERVER COL expr SCOL lustre_annot_list { (["observer"],$3)::$5 } |
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298 | |||

299 | kwd: |
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300 | DIV { [] } |
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301 | | DIV IDENT kwd { $2::$3} |