71 lines
1.9 KiB
OCaml
71 lines
1.9 KiB
OCaml
%{
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open Structs;;
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open Tactic;;
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%}
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/* Description des lexèmes définis dans lexer.mll */
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%token LPAREN RPAREN RARROW TILDE FALSE
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%token EOF
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%token <string> VAR_NAME
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%token <string> TYPE_NAME
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%token DOT INTRO ASSUMPTION APPLY ELIM CUT
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%token FUN MAPS_TO VDOTS EXF
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/* L'ordre de définition définit la priorité */
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%right RARROW
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%nonassoc TILDE
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%start main_type
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%type <Structs.ty> main_type
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%start main_tactic
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%type <Tactic.tactic> main_tactic
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%start main_lambda
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%type <Structs.lam> main_lambda
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%%
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main_type:
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| ty EOF { $1 }
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main_tactic:
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| tactic EOF { $1 }
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main_lambda:
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| lambda EOF { $1 }
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/* Types */
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ty:
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| LPAREN ty RPAREN { $2 }
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| ty RARROW ty { TImpl ($1, $3) }
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| TYPE_NAME { TSimple $1 }
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| TILDE ty { TImpl ($2, TFalse) }
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| FALSE { TFalse }
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/* Tactiques */
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tactic:
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| INTRO VAR_NAME DOT { Intro $2 }
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| ASSUMPTION DOT { Assumption }
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| APPLY VAR_NAME DOT { Apply $2 }
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| ELIM VAR_NAME DOT { Elim $2 }
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| CUT ty DOT { Cut $2 }
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/* Lambda-termes */
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lambda_arg: /* Expression pouvant être en argument d'une fonction */
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| VAR_NAME { LVar $1 }
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| LPAREN lambda RPAREN { $2 }
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/* Application d'une fonction */
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lambda_app:
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| lambda_app lambda_arg { LApp ($1, $2) }
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| lambda_arg { $1 }
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lambda:
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| lambda_app { $1 }
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| FUN VAR_NAME VDOTS ty MAPS_TO lambda { LFun ($2, $4, $6) }
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| FUN LPAREN VAR_NAME VDOTS ty RPAREN MAPS_TO lambda
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{ LFun ($3, $5, $8) }
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| EXF LPAREN VAR_NAME VDOTS ty RPAREN { LExf (LVar $3, $5) }
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