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|
%define api.prefix {ccmmc_parser_}
%define api.pure full
%lex-param {yyscan_t scanner}
%parse-param {yyscan_t scanner} {CcmmcState *state}
%{
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
typedef void* yyscan_t;
#include "ast.h"
#include "state.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
%}
%union{
char *lexeme;
CcmmcAst *node;
CcmmcValueConst value_const;
};
%{
extern int ccmmc_parser_lex(CCMMC_PARSER_STYPE *yylval, yyscan_t scanner);
extern char *ccmmc_parser_get_text(yyscan_t scanner);
static void ccmmc_parser_error(yyscan_t scanner, CcmmcState *state, const char *mesg);
%}
%token <lexeme>ID
%token <value_const>CONST
%token VOID
%token INT
%token FLOAT
%token TYPEDEF
%token IF
%token ELSE
%token WHILE
%token FOR
%token RETURN
%token OP_ASSIGN
%token OP_OR
%token OP_AND
%token OP_NOT
%token OP_ADD
%token OP_SUB
%token OP_MUL
%token OP_DIV
%token OP_GT
%token OP_LT
%token OP_GE
%token OP_LE
%token OP_NE
%token OP_EQ
%token DL_LPAREN
%token DL_RPAREN
%token DL_LBRACK
%token DL_RBRACK
%token DL_LBRACE
%token DL_RBRACE
%token DL_COMMA
%token DL_SEMICOL
%token DL_DOT
%token ERROR
%right DL_RPAREN ELSE
%type <node> program
%type <node> global_decl_list global_decl
%type <node> function_decl param_list param dim_fn expr_null block
%type <node> decl_list decl type_decl var_decl type
%type <node> id_list dim_decl cexpr mcexpr cfactor
%type <node> init_id_list init_id stmt_list stmt
%type <node> assign_expr_list nonempty_assign_expr_list assign_expr
%type <node> relop_expr relop_term relop_factor rel_op
%type <node> relop_expr_list nonempty_relop_expr_list
%type <node> expr add_op term mul_op factor var_ref dim_list
%start program
%%
/* ==== Grammar Section ==== */
program : global_decl_list
{
$$ = ccmmc_ast_new(
CCMMC_AST_NODE_PROGRAM, state->line_number);
ccmmc_ast_append_child($$, $1);
state->ast = $$;
}
|
{
$$ = ccmmc_ast_new(
CCMMC_AST_NODE_PROGRAM, state->line_number);
state->ast = $$;
}
;
global_decl_list: global_decl_list global_decl
{
$$ = ccmmc_ast_append_sibling($1, $2);
}
| global_decl
{
$$ = $1;
}
;
global_decl : type_decl
{
$$ = $1;
}
| var_decl
{
$$ = $1;
}
| function_decl
{
$$ = $1;
}
;
function_decl : type ID DL_LPAREN param_list DL_RPAREN DL_LBRACE block DL_RBRACE
{
$$ = ccmmc_ast_new_decl(
CCMMC_KIND_DECL_FUNCTION, state->line_number);
CcmmcAst *param_list = ccmmc_ast_new(
CCMMC_AST_NODE_PARAM_LIST, state->line_number);
ccmmc_ast_append_child(param_list, $4);
ccmmc_ast_append_children($$, 4, $1,
ccmmc_ast_new_id($2,
CCMMC_KIND_ID_NORMAL, state->line_number),
param_list, $7);
}
| VOID ID DL_LPAREN param_list DL_RPAREN DL_LBRACE block DL_RBRACE
{
$$ = ccmmc_ast_new_decl(
CCMMC_KIND_DECL_FUNCTION, state->line_number);
CcmmcAst *param_list = ccmmc_ast_new(
CCMMC_AST_NODE_PARAM_LIST, state->line_number);
ccmmc_ast_append_child(param_list, $4);
ccmmc_ast_append_children($$, 4,
ccmmc_ast_new_id("void",
CCMMC_KIND_ID_NORMAL, state->line_number),
ccmmc_ast_new_id($2,
CCMMC_KIND_ID_NORMAL, state->line_number),
param_list, $7);
}
| type ID DL_LPAREN VOID DL_RPAREN DL_LBRACE block DL_RBRACE
{
$$ = ccmmc_ast_new_decl(
CCMMC_KIND_DECL_FUNCTION, state->line_number);
CcmmcAst *empty_param_list = ccmmc_ast_new(
CCMMC_AST_NODE_PARAM_LIST, state->line_number);
ccmmc_ast_append_children($$, 4, $1,
ccmmc_ast_new_id($2,
CCMMC_KIND_ID_NORMAL, state->line_number),
empty_param_list, $7);
}
| VOID ID DL_LPAREN VOID DL_RPAREN DL_LBRACE block DL_RBRACE
{
$$ = ccmmc_ast_new_decl(
CCMMC_KIND_DECL_FUNCTION, state->line_number);
CcmmcAst *empty_param_list = ccmmc_ast_new(
CCMMC_AST_NODE_PARAM_LIST, state->line_number);
ccmmc_ast_append_children($$, 4,
ccmmc_ast_new_id("void",
CCMMC_KIND_ID_NORMAL, state->line_number),
ccmmc_ast_new_id($2,
CCMMC_KIND_ID_NORMAL, state->line_number),
empty_param_list, $7);
}
| type ID DL_LPAREN DL_RPAREN DL_LBRACE block DL_RBRACE
{
$$ = ccmmc_ast_new_decl(
CCMMC_KIND_DECL_FUNCTION, state->line_number);
CcmmcAst *empty_param_list = ccmmc_ast_new(
CCMMC_AST_NODE_PARAM_LIST, state->line_number);
ccmmc_ast_append_children($$, 4, $1,
ccmmc_ast_new_id($2,
CCMMC_KIND_ID_NORMAL, state->line_number),
empty_param_list, $6);
}
| VOID ID DL_LPAREN DL_RPAREN DL_LBRACE block DL_RBRACE
{
$$ = ccmmc_ast_new_decl(
CCMMC_KIND_DECL_FUNCTION, state->line_number);
CcmmcAst *empty_param_list = ccmmc_ast_new(
CCMMC_AST_NODE_PARAM_LIST, state->line_number);
ccmmc_ast_append_children($$, 4,
ccmmc_ast_new_id("void",
CCMMC_KIND_ID_NORMAL, state->line_number),
ccmmc_ast_new_id($2,
CCMMC_KIND_ID_NORMAL, state->line_number),
empty_param_list, $6);
}
;
param_list : param_list DL_COMMA param
{
$$ = ccmmc_ast_append_sibling($1, $3);
}
| param
{
$$ = $1;
}
;
param : type ID
{
$$ = ccmmc_ast_new_decl(
CCMMC_KIND_DECL_FUNCTION_PARAMETER, state->line_number);
ccmmc_ast_append_children($$, 2, $1,
ccmmc_ast_new_id($2,
CCMMC_KIND_ID_NORMAL, state->line_number));
}
| type ID dim_fn
{
$$ = ccmmc_ast_new_decl(
CCMMC_KIND_DECL_FUNCTION_PARAMETER, state->line_number);
ccmmc_ast_append_children($$, 2, $1,
ccmmc_ast_append_child(
ccmmc_ast_new_id($2,
CCMMC_KIND_ID_ARRAY, state->line_number), $3));
}
;
dim_fn : DL_LBRACK expr_null DL_RBRACK
{
$$ = $2;
}
| dim_fn DL_LBRACK expr DL_RBRACK
{
$$ = ccmmc_ast_append_sibling($1, $3);
}
;
expr_null :expr
{
$$ = $1;
}
|
{
$$ = ccmmc_ast_new(CCMMC_AST_NODE_NUL, state->line_number);
}
;
block : decl_list stmt_list
{
$$ = ccmmc_ast_new(CCMMC_AST_NODE_BLOCK, state->line_number);
ccmmc_ast_append_children($$, 2,
ccmmc_ast_append_child(
ccmmc_ast_new(CCMMC_AST_NODE_VARIABLE_DECL_LIST,
state->line_number), $1),
ccmmc_ast_append_child(
ccmmc_ast_new(CCMMC_AST_NODE_STMT_LIST,
state->line_number), $2));
}
| stmt_list
{
$$ = ccmmc_ast_new(CCMMC_AST_NODE_BLOCK, state->line_number);
ccmmc_ast_append_child($$,
ccmmc_ast_append_child(
ccmmc_ast_new(CCMMC_AST_NODE_STMT_LIST,
state->line_number), $1));
}
| decl_list
{
$$ = ccmmc_ast_new(CCMMC_AST_NODE_BLOCK, state->line_number);
ccmmc_ast_append_child($$,
ccmmc_ast_append_child(
ccmmc_ast_new(CCMMC_AST_NODE_VARIABLE_DECL_LIST,
state->line_number), $1));
}
| {
$$ = ccmmc_ast_new(CCMMC_AST_NODE_BLOCK, state->line_number);
}
;
decl_list : decl_list decl
{
$$ = ccmmc_ast_append_sibling($1, $2);
}
| decl
{
$$ = $1;
}
;
decl : type_decl
{
$$ = $1;
}
| var_decl
{
$$ = $1;
}
;
type_decl : TYPEDEF type id_list DL_SEMICOL
{
$$ = ccmmc_ast_new_decl(
CCMMC_KIND_DECL_TYPE, state->line_number);
ccmmc_ast_append_children($$, 2, $2, $3);
}
| TYPEDEF VOID id_list DL_SEMICOL
{
$$ = ccmmc_ast_new_decl(
CCMMC_KIND_DECL_TYPE, state->line_number);
ccmmc_ast_append_children($$, 2,
ccmmc_ast_new_id("void",
CCMMC_KIND_ID_NORMAL, state->line_number), $3);
}
;
var_decl : type init_id_list DL_SEMICOL
{
$$ = ccmmc_ast_new_decl(
CCMMC_KIND_DECL_VARIABLE, state->line_number);
ccmmc_ast_append_children($$, 2, $1, $2);
}
| ID id_list DL_SEMICOL
{
$$ = ccmmc_ast_new_decl(
CCMMC_KIND_DECL_VARIABLE, state->line_number);
ccmmc_ast_append_children($$, 2,
ccmmc_ast_new_id($1,
CCMMC_KIND_ID_NORMAL, state->line_number), $2);
}
;
type : INT
{
$$ = ccmmc_ast_new_id("int",
CCMMC_KIND_ID_NORMAL, state->line_number);
}
| FLOAT
{
$$ = ccmmc_ast_new_id("float",
CCMMC_KIND_ID_NORMAL, state->line_number);
}
;
id_list : ID
{
$$ = ccmmc_ast_new_id($1,
CCMMC_KIND_ID_NORMAL, state->line_number);
}
| id_list DL_COMMA ID
{
$$ = ccmmc_ast_append_sibling($1,
ccmmc_ast_new_id($3,
CCMMC_KIND_ID_NORMAL, state->line_number));
}
| id_list DL_COMMA ID dim_decl
{
$$ = ccmmc_ast_append_sibling($1,
ccmmc_ast_append_child(
ccmmc_ast_new_id($3,
CCMMC_KIND_ID_ARRAY, state->line_number), $4));
}
| ID dim_decl
{
$$ = ccmmc_ast_append_child(
ccmmc_ast_new_id($1,
CCMMC_KIND_ID_ARRAY, state->line_number), $2);
}
;
dim_decl : DL_LBRACK cexpr DL_RBRACK
{
$$ = $2;
}
| dim_decl DL_LBRACK cexpr DL_RBRACK
{
$$ = ccmmc_ast_append_sibling($1, $3);
}
;
cexpr : cexpr OP_ADD mcexpr
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_BINARY_OP,
CCMMC_KIND_OP_BINARY_ADD, state->line_number);
ccmmc_ast_append_children($$, 2, $1, $3);
} /* This is for array declarations */
| cexpr OP_SUB mcexpr
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_BINARY_OP,
CCMMC_KIND_OP_BINARY_SUB, state->line_number);
ccmmc_ast_append_children($$, 2, $1, $3);
}
| mcexpr
{
$$ = $1;
}
;
mcexpr : mcexpr OP_MUL cfactor
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_BINARY_OP,
CCMMC_KIND_OP_BINARY_MUL, state->line_number);
ccmmc_ast_append_children($$, 2, $1, $3);
}
| mcexpr OP_DIV cfactor
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_BINARY_OP,
CCMMC_KIND_OP_BINARY_DIV, state->line_number);
ccmmc_ast_append_children($$, 2, $1, $3);
}
| cfactor
{
$$ = $1;
}
;
cfactor: CONST
{
$$ = ccmmc_ast_new(
CCMMC_AST_NODE_CONST_VALUE, state->line_number);
$$->value_const = $1;
}
| DL_LPAREN cexpr DL_RPAREN
{
$$ = $2;
}
;
init_id_list: init_id
{
$$ = $1;
}
| init_id_list DL_COMMA init_id
{
$$ = ccmmc_ast_append_sibling($1, $3);
}
;
init_id : ID
{
$$ = ccmmc_ast_new_id($1,
CCMMC_KIND_ID_NORMAL, state->line_number);
}
| ID dim_decl
{
$$ = ccmmc_ast_append_child(
ccmmc_ast_new_id($1,
CCMMC_KIND_ID_ARRAY, state->line_number), $2);
}
| ID OP_ASSIGN relop_expr
{
$$ = ccmmc_ast_new_id($1,
CCMMC_KIND_ID_WITH_INIT, state->line_number);
ccmmc_ast_append_child($$, $3);
}
;
stmt_list : stmt_list stmt
{
$$ = ccmmc_ast_append_sibling($1, $2);
}
| stmt
{
$$ = $1;
}
;
stmt : DL_LBRACE block DL_RBRACE
{
$$ = $2;
}
| WHILE DL_LPAREN relop_expr DL_RPAREN stmt
{
$$ = ccmmc_ast_new_stmt(CCMMC_KIND_STMT_WHILE, state->line_number);
ccmmc_ast_append_children($$, 2, $3, $5);
}
| FOR DL_LPAREN assign_expr_list DL_SEMICOL relop_expr_list DL_SEMICOL assign_expr_list DL_RPAREN stmt
{
$$ = ccmmc_ast_new_stmt(CCMMC_KIND_STMT_FOR, state->line_number);
ccmmc_ast_append_children($$, 4, $3, $5, $7, $9);
}
| var_ref OP_ASSIGN relop_expr DL_SEMICOL
{
$$ = ccmmc_ast_new_stmt(CCMMC_KIND_STMT_ASSIGN, state->line_number);
ccmmc_ast_append_children($$, 2, $1, $3);
}
| IF DL_LPAREN relop_expr DL_RPAREN stmt
{
$$ = ccmmc_ast_new_stmt(CCMMC_KIND_STMT_IF, state->line_number);
ccmmc_ast_append_children($$, 3, $3, $5,
ccmmc_ast_new(CCMMC_AST_NODE_NUL, state->line_number));
}
| IF DL_LPAREN relop_expr DL_RPAREN stmt ELSE stmt
{
$$ = ccmmc_ast_new_stmt(CCMMC_KIND_STMT_IF, state->line_number);
ccmmc_ast_append_children($$, 3, $3, $5, $7);
}
| ID DL_LPAREN relop_expr_list DL_RPAREN DL_SEMICOL
{
$$ = ccmmc_ast_new_stmt(CCMMC_KIND_STMT_FUNCTION_CALL, state->line_number);
ccmmc_ast_append_children($$, 2,
ccmmc_ast_new_id($1, CCMMC_KIND_ID_NORMAL, state->line_number), $3);
}
| DL_SEMICOL
{
$$ = ccmmc_ast_new(CCMMC_AST_NODE_NUL, state->line_number);
}
| RETURN DL_SEMICOL
{
$$ = ccmmc_ast_new_stmt(CCMMC_KIND_STMT_RETURN, state->line_number);
}
| RETURN relop_expr DL_SEMICOL
{
$$ = ccmmc_ast_new_stmt(CCMMC_KIND_STMT_RETURN, state->line_number);
ccmmc_ast_append_child($$, $2);
}
;
assign_expr_list: nonempty_assign_expr_list
{
$$ = ccmmc_ast_new(
CCMMC_AST_NODE_NONEMPTY_ASSIGN_EXPR_LIST, state->line_number);
ccmmc_ast_append_child($$, $1);
}
|
{
$$ = ccmmc_ast_new(CCMMC_AST_NODE_NUL, state->line_number);
}
;
nonempty_assign_expr_list : nonempty_assign_expr_list DL_COMMA assign_expr
{
$$ = ccmmc_ast_append_sibling($1, $3);
}
| assign_expr
{
$$ = $1;
}
;
assign_expr : var_ref OP_ASSIGN relop_expr
{
$$ = ccmmc_ast_new_stmt(
CCMMC_KIND_STMT_ASSIGN, state->line_number);
ccmmc_ast_append_children($$, 2, $1, $3);
}
| relop_expr
{
$$ = $1;
}
;
relop_expr : relop_term
{
$$ = $1;
}
| relop_expr OP_OR relop_term
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_BINARY_OP,
CCMMC_KIND_OP_BINARY_OR, state->line_number);
ccmmc_ast_append_children($$, 2, $1, $3);
}
;
relop_term : relop_factor
{
$$ = $1;
}
| relop_term OP_AND relop_factor
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_BINARY_OP,
CCMMC_KIND_OP_BINARY_AND, state->line_number);
ccmmc_ast_append_children($$, 2, $1, $3);
}
;
relop_factor : expr
{
$$ = $1;
}
| expr rel_op expr
{
$$ = $2;
ccmmc_ast_append_children($$, 2, $1, $3);
}
;
rel_op : OP_EQ
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_BINARY_OP,
CCMMC_KIND_OP_BINARY_EQ, state->line_number);
}
| OP_GE
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_BINARY_OP,
CCMMC_KIND_OP_BINARY_GE, state->line_number);
}
| OP_LE
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_BINARY_OP,
CCMMC_KIND_OP_BINARY_LE, state->line_number);
}
| OP_NE
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_BINARY_OP,
CCMMC_KIND_OP_BINARY_NE, state->line_number);
}
| OP_GT
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_BINARY_OP,
CCMMC_KIND_OP_BINARY_GT, state->line_number);
}
| OP_LT
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_BINARY_OP,
CCMMC_KIND_OP_BINARY_LT, state->line_number);
}
;
relop_expr_list : nonempty_relop_expr_list
{
$$ = ccmmc_ast_new(
CCMMC_AST_NODE_NONEMPTY_RELOP_EXPR_LIST, state->line_number);
ccmmc_ast_append_child($$, $1);
}
|
{
$$ = ccmmc_ast_new(CCMMC_AST_NODE_NUL, state->line_number);
}
;
nonempty_relop_expr_list: nonempty_relop_expr_list DL_COMMA relop_expr
{
$$ = ccmmc_ast_append_sibling($1, $3);
}
| relop_expr
{
$$ = $1;
}
;
expr : expr add_op term
{
$$ = $2;
ccmmc_ast_append_children($$, 2, $1, $3);
}
| term
{
$$ = $1;
}
;
add_op : OP_ADD
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_BINARY_OP,
CCMMC_KIND_OP_BINARY_ADD, state->line_number);
}
| OP_SUB
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_BINARY_OP,
CCMMC_KIND_OP_BINARY_SUB, state->line_number);
}
;
term : term mul_op factor
{
$$ = $2;
ccmmc_ast_append_children($$, 2, $1, $3);
}
| factor
{
$$ = $1;
}
;
mul_op : OP_MUL
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_BINARY_OP,
CCMMC_KIND_OP_BINARY_MUL, state->line_number);
}
| OP_DIV
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_BINARY_OP,
CCMMC_KIND_OP_BINARY_DIV, state->line_number);
}
;
factor : DL_LPAREN relop_expr DL_RPAREN
{
$$ = $2;
}
| OP_ADD DL_LPAREN relop_expr DL_RPAREN
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_UNARY_OP,
CCMMC_KIND_OP_UNARY_POSITIVE, state->line_number);
ccmmc_ast_append_child($$, $3);
}
| OP_SUB DL_LPAREN relop_expr DL_RPAREN
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_UNARY_OP,
CCMMC_KIND_OP_UNARY_NEGATIVE, state->line_number);
ccmmc_ast_append_child($$, $3);
}
| OP_NOT DL_LPAREN relop_expr DL_RPAREN
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_UNARY_OP,
CCMMC_KIND_OP_UNARY_LOGICAL_NEGATION, state->line_number);
ccmmc_ast_append_child($$, $3);
}
| CONST
{
$$ = ccmmc_ast_new(CCMMC_AST_NODE_CONST_VALUE, state->line_number);
$$->value_const = $1;
}
| OP_ADD CONST
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_UNARY_OP,
CCMMC_KIND_OP_UNARY_POSITIVE, state->line_number);
CcmmcAst *const_node = ccmmc_ast_new(
CCMMC_AST_NODE_CONST_VALUE, state->line_number);
const_node->value_const = $2;
ccmmc_ast_append_child($$, const_node);
}
| OP_SUB CONST
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_UNARY_OP,
CCMMC_KIND_OP_UNARY_NEGATIVE, state->line_number);
CcmmcAst *const_node = ccmmc_ast_new(
CCMMC_AST_NODE_CONST_VALUE, state->line_number);
const_node->value_const = $2;
ccmmc_ast_append_child($$, const_node);
}
| OP_NOT CONST
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_UNARY_OP,
CCMMC_KIND_OP_UNARY_LOGICAL_NEGATION, state->line_number);
CcmmcAst *const_node = ccmmc_ast_new(
CCMMC_AST_NODE_CONST_VALUE, state->line_number);
const_node->value_const = $2;
ccmmc_ast_append_child($$, const_node);
}
| ID DL_LPAREN relop_expr_list DL_RPAREN
{
$$ = ccmmc_ast_new_stmt(
CCMMC_KIND_STMT_FUNCTION_CALL, state->line_number);
ccmmc_ast_append_children($$, 2,
ccmmc_ast_new_id($1,
CCMMC_KIND_ID_NORMAL, state->line_number), $3);
}
| OP_ADD ID DL_LPAREN relop_expr_list DL_RPAREN
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_UNARY_OP,
CCMMC_KIND_OP_UNARY_POSITIVE, state->line_number);
CcmmcAst *func_node = ccmmc_ast_new_stmt(
CCMMC_KIND_STMT_FUNCTION_CALL, state->line_number);
ccmmc_ast_append_children(func_node, 2,
ccmmc_ast_new_id($2,
CCMMC_KIND_ID_NORMAL, state->line_number), $4);
ccmmc_ast_append_child($$, func_node);
}
| OP_SUB ID DL_LPAREN relop_expr_list DL_RPAREN
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_UNARY_OP,
CCMMC_KIND_OP_UNARY_NEGATIVE, state->line_number);
CcmmcAst *func_node = ccmmc_ast_new_stmt(
CCMMC_KIND_STMT_FUNCTION_CALL, state->line_number);
ccmmc_ast_append_children(func_node, 2,
ccmmc_ast_new_id($2,
CCMMC_KIND_ID_NORMAL, state->line_number), $4);
ccmmc_ast_append_child($$, func_node);
}
| OP_NOT ID DL_LPAREN relop_expr_list DL_RPAREN
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_UNARY_OP,
CCMMC_KIND_OP_UNARY_LOGICAL_NEGATION, state->line_number);
CcmmcAst *func_node = ccmmc_ast_new_stmt(
CCMMC_KIND_STMT_FUNCTION_CALL, state->line_number);
ccmmc_ast_append_children(func_node, 2,
ccmmc_ast_new_id($2,
CCMMC_KIND_ID_NORMAL, state->line_number), $4);
ccmmc_ast_append_child($$, func_node);
}
| var_ref
{
$$ = $1;
}
| OP_ADD var_ref
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_UNARY_OP,
CCMMC_KIND_OP_UNARY_POSITIVE, state->line_number);
ccmmc_ast_append_child($$, $2);
}
| OP_SUB var_ref
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_UNARY_OP,
CCMMC_KIND_OP_UNARY_NEGATIVE, state->line_number);
ccmmc_ast_append_child($$, $2);
}
| OP_NOT var_ref
{
$$ = ccmmc_ast_new_expr(CCMMC_KIND_EXPR_UNARY_OP,
CCMMC_KIND_OP_UNARY_LOGICAL_NEGATION, state->line_number);
ccmmc_ast_append_child($$, $2);
}
;
var_ref : ID
{
$$ = ccmmc_ast_new_id($1,
CCMMC_KIND_ID_NORMAL, state->line_number);
}
| ID dim_list
{
$$ = ccmmc_ast_new_id($1,
CCMMC_KIND_ID_ARRAY, state->line_number);
ccmmc_ast_append_child($$, $2);
}
;
dim_list : dim_list DL_LBRACK expr DL_RBRACK
{
$$ = ccmmc_ast_append_sibling($1, $3);
}
| DL_LBRACK expr DL_RBRACK
{
$$ = $2;
}
;
%%
static void ccmmc_parser_error(yyscan_t scanner, CcmmcState *state, const char *mesg)
{
fprintf(stderr, "Error found in Line \t%zu\tnext token: \t%s\n",
state->line_number, ccmmc_parser_get_text(scanner));
exit(1);
}
// vim: set sw=4 ts=4 sts=4 et:
|
