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|
(*
* Menhir wygeneruje funkcję o nazwie file
*)
%start <Xi_lib.Ast.module_definition> file
%{
open Xi_lib
open Ast
open Parser_utils
(* Generator znaczników *)
let mkTag =
let i = ref 0 in
fun () ->
let tag = !i in
incr i;
NodeTag tag
(* vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
* Miejsce na twój kod w Ocamlu
*)
(* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
----------------------------------------------------------------------------- *)
%}
(* vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
* Miejsce na dyrektywy
*)
%token EOF
%token COMMA
%token LPAREN
%token RPAREN
%token LBRACKET
%token RBRACKET
%token LSBRACKET
%token RSBRACKET
%token COLON
%token OP_PLUS
%token OP_MINUS
%token OP_MULT
%token OP_DIV
%token OP_REM
%token OP_AND
%token OP_OR
%token OP_EQ
%token OP_NEQ
%token OP_LE
%token OP_GE
%token OP_LT
%token OP_GT
%token OP_NOT
%token ASSIGN
%token IF
%token ELSE
%token WHILE
%token RETURN
%token LENGTH
%token <int>INT
%token <string>IDENTIFIER
%token <char>CHAR
%token <bool>BOOL
%token T_BOOL
%token T_INT
(* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
----------------------------------------------------------------------------- *)
%%
(* vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
* Miejsce na gramatykę
*)
(* Obecnie potrafimy sparsować tylko pusty plik (wymagamy od razu tokena EOF) *)
file:
| declarations= list(func) EOF
{ ModuleDefinition {global_declarations=declarations } }
| EOF
{ ModuleDefinition {global_declarations=[] } }
func:
| id=identifier LPAREN parameters=separated_list(COMMA,argument) RPAREN return=separated_list(COMMA,typ) body=option(statement_block)
{ GDECL_Function { loc=mkLocation $startpos;
id=id;formal_parameters=parameters; return_types=return;body=body} }
argument:
| id = identifier COLON t=typ
{ VarDecl {loc=mkLocation $startpos;id=id;tp=t} }
typ:
| t=base_type { t }
| t=typ LSBRACKET dim=option(expression) RSBRACKET
{ TEXPR_Array { loc=mkLocation $startpos;
sub=t;dim=dim } }
base_type:
| T_INT {TEXPR_Int {loc=mkLocation $startpos} }
| T_BOOL {TEXPR_Bool {loc=mkLocation $startpos} }
expression:
| node=expression_or {node}
expression_or:
| node=expression_and {node}
| left=expression_or OP_OR right=expression_and
{EXPR_Binop {tag=mkTag ();loc=mkLocation $startpos;
op=BINOP_Or;lhs=left;rhs=right } }
expression_and:
| node=expression_eq {node}
| left=expression_and OP_AND right=expression_eq
{EXPR_Binop {tag=mkTag ();loc=mkLocation $startpos;
op=BINOP_And;lhs=left;rhs=right } }
expression_eq:
| node=expression_rel {node}
| left=expression_eq OP_EQ right=expression_rel
{EXPR_Relation {tag=mkTag ();loc=mkLocation $startpos;
op=RELOP_Eq;lhs=left;rhs=right } }
| left=expression_eq OP_NEQ right=expression_rel
{EXPR_Relation {tag=mkTag ();loc=mkLocation $startpos;
op=RELOP_Ne;lhs=left;rhs=right } }
expression_rel:
| node=expression_add {node}
| left=expression_rel OP_LE right=expression_add
{EXPR_Relation {tag=mkTag ();loc=mkLocation $startpos;
op=RELOP_Le;lhs=left;rhs=right } }
| left=expression_rel OP_GE right=expression_add
{EXPR_Relation {tag=mkTag ();loc=mkLocation $startpos;
op=RELOP_Ge;lhs=left;rhs=right } }
| left=expression_rel OP_LT right=expression_add
{EXPR_Relation {tag=mkTag ();loc=mkLocation $startpos;
op=RELOP_Lt;lhs=left;rhs=right } }
| left=expression_rel OP_GT right=expression_add
{EXPR_Relation {tag=mkTag ();loc=mkLocation $startpos;
op=RELOP_Gt;lhs=left;rhs=right } }
expression_add:
| node=expression_mult { node }
| left=expression_add OP_PLUS right=expression_mult
{EXPR_Binop {tag=mkTag ();loc=mkLocation $startpos;
op=BINOP_Add;lhs=left;rhs=right } }
| left=expression_add OP_MINUS right=expression_mult
{EXPR_Binop {tag=mkTag ();loc=mkLocation $startpos;
op=BINOP_Sub;lhs=left;rhs=right } }
expression_mult:
| node=expression_unary { node }
| left=expression_mult OP_MULT right=expression_unary
{EXPR_Binop {tag=mkTag ();loc=mkLocation $startpos;
op=BINOP_Mult;lhs=left;rhs=right } }
| left=expression_mult OP_DIV right=expression_unary
{EXPR_Binop {tag=mkTag ();loc=mkLocation $startpos;
op=BINOP_Div;lhs=left;rhs=right } }
| left=expression_mult OP_REM right=expression_unary
{EXPR_Binop {tag=mkTag ();loc=mkLocation $startpos;
op=BINOP_Rem;lhs=left;rhs=right } }
expression_unary:
| node=expression_highest { node }
| OP_MINUS right=expression_unary
{EXPR_Unop {tag=mkTag ();loc=mkLocation $startpos;
op=UNOP_Neg;sub=right } }
| OP_NOT right=expression_unary
{EXPR_Unop {tag=mkTag ();loc=mkLocation $startpos;
op=UNOP_Not;sub=right } }
expression_highest:
| node=expression_integer { node }
| node=expression_identifier { node }
(* TODO Add calls and arrays and other constants *)
expression_integer:
| value=INT { EXPR_Int {tag= mkTag ();loc=mkLocation $startpos;
value=Int32.of_int value} }
expression_identifier:
| id=identifier { EXPR_Id {tag= mkTag ();loc=mkLocation $startpos;
id=id} }
statement_block:
| LBRACKET body=list(statement) RBRACKET { STMTBlock {
loc=mkLocation $startpos;body=body } }
statement:
| block=statement_block {STMT_Block block }
identifier:
| IDENTIFIER
{ Identifier $1 }
(*
** przykład użycia mkLocation
use_declaration:
| USE suffix(identifier, opt(SEMICOLON))
{ GDECL_Use {loc=mkLocation $startpos; id=$2} }
** przykład użycia mkTag
atomic_expression:
| identifier
{ EXPR_Id {loc=mkLocation $startpos; id=$1; tag=mkTag ()} }
*)
(* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
----------------------------------------------------------------------------- *)
|
