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SMV grammar: reorder rules to match NuSMV manual #1182

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Jul 3, 2025
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SMV grammar: reorder rules to match NuSMV manual #1182

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74 changes: 39 additions & 35 deletions src/smvlang/parser.y
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Original file line number Diff line number Diff line change
Expand Up @@ -675,53 +675,57 @@ define : assignment_var BECOMES_Token formula ';'
formula : term
;

term : variable_identifier
| next_Token '(' term ')' { init($$, ID_smv_next); mto($$, $3); }
| '(' formula ')' { $$=$2; }
| '{' set_body_expr '}' { $$=$2; stack_expr($$).id(ID_smv_set); }
| INC_Token '(' term ')' { init($$, "inc"); mto($$, $3); }
| DEC_Token '(' term ')' { init($$, "dec"); mto($$, $3); }
| ADD_Token '(' term ',' term ')' { j_binary($$, $3, ID_plus, $5); }
| SUB_Token '(' term ',' term ')' { init($$, ID_minus); mto($$, $3); mto($$, $5); }
| NUMBER_Token { init($$, ID_constant); stack_expr($$).set(ID_value, stack_expr($1).id()); stack_expr($$).type()=integer_typet(); }
constant : NUMBER_Token { init($$, ID_constant); stack_expr($$).set(ID_value, stack_expr($1).id()); stack_expr($$).type()=integer_typet(); }
| TRUE_Token { init($$, ID_constant); stack_expr($$).set(ID_value, ID_true); stack_expr($$).type()=typet(ID_bool); }
| FALSE_Token { init($$, ID_constant); stack_expr($$).set(ID_value, ID_false); stack_expr($$).type()=typet(ID_bool); }
| case_Token cases esac_Token { $$=$2; }
| term IF_Token term ':' term %prec IF_Token
{ init($$, ID_if); mto($$, $1); mto($$, $3); mto($$, $5); }
| switch_Token '(' variable_identifier ')' '{' switches '}' { init($$, ID_switch); mto($$, $3); mto($$, $6); }
| MINUS_Token term %prec UMINUS
{ init($$, ID_unary_minus); mto($$, $2); }
| term mod_Token term { binary($$, $1, ID_mod, $3); }
| term GTGT_Token term { binary($$, $1, ID_shr, $3); }
| term LTLT_Token term { binary($$, $1, ID_shl, $3); }
| term COLONCOLON_Token term { binary($$, $1, ID_concatenation, $3); }
| term TIMES_Token term { binary($$, $1, ID_mult, $3); }
| term DIVIDE_Token term { binary($$, $1, ID_div, $3); }
| term PLUS_Token term { binary($$, $1, ID_plus, $3); }
| term MINUS_Token term { binary($$, $1, ID_minus, $3); }
| term EQUIV_Token term { binary($$, $1, ID_smv_iff, $3); }
| term IMPLIES_Token term { binary($$, $1, ID_implies, $3); }
;

term : constant
| variable_identifier
| '(' formula ')' { $$=$2; }
| NOT_Token term { init($$, ID_not); mto($$, $2); }
| term AND_Token term { j_binary($$, $1, ID_and, $3); }
| term OR_Token term { j_binary($$, $1, ID_or, $3); }
| term xor_Token term { j_binary($$, $1, ID_xor, $3); }
| term xnor_Token term { binary($$, $1, ID_xnor, $3); }
| term OR_Token term { j_binary($$, $1, ID_or, $3); }
| term AND_Token term { j_binary($$, $1, ID_and, $3); }
| NOT_Token term { init($$, ID_not); mto($$, $2); }
| term IMPLIES_Token term { binary($$, $1, ID_implies, $3); }
| term EQUIV_Token term { binary($$, $1, ID_smv_iff, $3); }
| term EQUAL_Token term { binary($$, $1, ID_equal, $3); }
| term NOTEQUAL_Token term { binary($$, $1, ID_notequal, $3); }
| term LT_Token term { binary($$, $1, ID_lt, $3); }
| term LE_Token term { binary($$, $1, ID_le, $3); }
| term GT_Token term { binary($$, $1, ID_gt, $3); }
| term GE_Token term { binary($$, $1, ID_ge, $3); }
| term union_Token term { binary($$, $1, ID_smv_union, $3); }
| term in_Token term { binary($$, $1, ID_smv_setin, $3); }
| extend_Token '(' term ',' term ')' { binary($$, $3, ID_smv_extend, $5); }
| resize_Token '(' term ',' term ')' { binary($$, $3, ID_smv_resize, $5); }
| signed_Token '(' term ')' { init($$, ID_smv_signed_cast); mto($$, $3); }
| sizeof_Token '(' term ')' { init($$, ID_smv_sizeof); mto($$, $3); }
| MINUS_Token term %prec UMINUS
{ init($$, ID_unary_minus); mto($$, $2); }
| term PLUS_Token term { binary($$, $1, ID_plus, $3); }
| term MINUS_Token term { binary($$, $1, ID_minus, $3); }
| term TIMES_Token term { binary($$, $1, ID_mult, $3); }
| term DIVIDE_Token term { binary($$, $1, ID_div, $3); }
| term mod_Token term { binary($$, $1, ID_mod, $3); }
| term GTGT_Token term { binary($$, $1, ID_shr, $3); }
| term LTLT_Token term { binary($$, $1, ID_shl, $3); }
| term COLONCOLON_Token term { binary($$, $1, ID_concatenation, $3); }
| swconst_Token '(' term ',' term ')' { binary($$, $3, ID_smv_swconst, $5); }
| unsigned_Token '(' term ')' { init($$, ID_smv_unsigned_cast); mto($$, $3); }
| uwconst_Token '(' term ',' term ')' { binary($$, $3, ID_smv_uwconst, $5); }
| signed_Token '(' term ')' { init($$, ID_smv_signed_cast); mto($$, $3); }
| unsigned_Token '(' term ')' { init($$, ID_smv_unsigned_cast); mto($$, $3); }
| sizeof_Token '(' term ')' { init($$, ID_smv_sizeof); mto($$, $3); }
| extend_Token '(' term ',' term ')' { binary($$, $3, ID_smv_extend, $5); }
| resize_Token '(' term ',' term ')' { binary($$, $3, ID_smv_resize, $5); }
| term union_Token term { binary($$, $1, ID_smv_union, $3); }
| '{' set_body_expr '}' { $$=$2; stack_expr($$).id(ID_smv_set); }
| term in_Token term { binary($$, $1, ID_smv_setin, $3); }
| term IF_Token term ':' term %prec IF_Token
{ init($$, ID_if); mto($$, $1); mto($$, $3); mto($$, $5); }
| case_Token cases esac_Token { $$=$2; }
| next_Token '(' term ')' { init($$, ID_smv_next); mto($$, $3); }
/* Not in NuSMV manual */
| INC_Token '(' term ')' { init($$, "inc"); mto($$, $3); }
| DEC_Token '(' term ')' { init($$, "dec"); mto($$, $3); }
| ADD_Token '(' term ',' term ')' { j_binary($$, $3, ID_plus, $5); }
| SUB_Token '(' term ',' term ')' { init($$, ID_minus); mto($$, $3); mto($$, $5); }
| switch_Token '(' variable_identifier ')' '{' switches '}' { init($$, ID_switch); mto($$, $3); mto($$, $6); }
/* CTL */
| AX_Token term { init($$, ID_AX); mto($$, $2); }
| AF_Token term { init($$, ID_AF); mto($$, $2); }
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