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|
--- parser.y.orig Mon Dec 2 11:28:18 2002
+++ parser.y Mon Dec 2 11:34:32 2002
@@ -84,7 +84,6 @@
IMPLEMENTATION
INTERFACE
LABEL
- LET
LOOPHOLE
OBJECT
OF
@@ -283,20 +282,24 @@
$2->attrib(ctx_program);
$2->translate(ctx_program);
}
+;
input_file: program | module | unit
+ ;
program: block '.' { $$ = new program_node(NULL, NULL, NULL, NULL, $1, $2); }
| PROGRAM IDENT prog_param_list ';' block '.'
{
$$ = new program_node($1, $2, $3, $4, $5, $6);
}
+;
module: decl_part_list { $$ = new module_node(NULL, NULL, NULL, NULL, $1); }
| PROGRAM IDENT prog_param_list ';' decl_part_list
{
$$ = new module_node($1, $2, $3, $4, $5);
}
+;
/* Turbo Pascal specific */
@@ -309,38 +312,48 @@
{ $$ = new unit_node(NULL, NULL, NULL, $1, $2, $3, $4, NULL, $5, $6); }
| INTERFACE unit_decl_list IMPLEMENTATION unit_def_list compoundst '.'
{ $$ = new unit_node(NULL, NULL, NULL, $1, $2, $3, $4, $5, NULL, $6); }
+ ;
unit_def_list: decl_part_list
+ ;
prog_param_list: { $$ = NULL; }
| '(' ident_list ')' { $$ = new import_list_node($1, $2, $3); }
+ ;
ident_list: IDENT ',' ident_list { $$ = new token_list($1, $3); }
| IDENT { $$ = new token_list($1); }
+ ;
block: decl_part_list compoundst
{
$$ = new block_node($1, $2);
}
+;
decl_part_list: { $$ = NULL; }
| decl_part decl_part_list { $1->next = $2; $$ = $1; }
+ ;
decl_part: label_decl_part | const_def_part | type_def_part | var_decl_part
| proc_def | proc_fwd_decl | unit_spec
+ ;
unit_spec: UNIT IDENT ';' INTERFACE unit_decl_list UNIT_END
{ $$ = new unit_spec_node($1, $2, $3, $4, $5); }
| INTERFACE unit_decl_list UNIT_END
{ $$ = new unit_spec_node(NULL, NULL, NULL, $1, $2); }
+ ;
unit_decl_list: { $$ = NULL; }
| unit_decl unit_decl_list { $1->next = $2; $$ = $1; }
+ ;
unit_decl: label_decl_part | const_def_part | type_def_part | var_decl_part
| proc_spec | proc_fwd_decl | unit_spec
+ ;
/*
//=============================================================================
@@ -397,15 +410,20 @@
| ICONST ':' statement { $$ = new label_node($1, $2, $3); }
| IDENT ':' statement { $$ = new label_node($1, $2, $3); }
| compoundst { $$ = $1; }
+ ;
compoundst: BEGIN sequence END { $$ = new compound_node($1, $2, $3); }
+ ;
sequence: statement | statement ';' sequence { $1->next = $3; $$ = $1; }
+ ;
actual_params: { $$ = NULL; } | expr_group { $$ = $1; }
+ ;
write_params: { $$ = NULL; }
| '(' write_list ')' { $$ = new write_list_node($1, $2, $3); }
+ ;
case_list: case_items
| case_items otherwise sequence
@@ -419,20 +437,26 @@
$$ = new case_node(NULL, $2, $3);
}
}
+ ;
otherwise: OTHERWISE | ELSE /* Turbo Pascal */
+ ;
case_items: { $$ = NULL; }
| case_item
| case_item ';' case_items { $1->next = $3; $$ = $1; }
+ ;
case_item: case_elem_list ':' statement { $$ = new case_node($1, $2, $3); }
+ ;
case_elem_list: case_elem
| case_elem ',' case_elem_list { $1->next = $3; $$ = $1; }
+ ;
case_elem: expr { $$ = $1; }
| expr DOTS expr { $$ = new case_range_node($1, $2, $3); }
+ ;
/*
//=============================================================================
@@ -488,6 +512,7 @@
| expr EQ expr { $$ = new op_node(tn_eq, $1, $2, $3); }
| expr NE expr { $$ = new op_node(tn_ne, $1, $2, $3); }
| expr IN expr { $$ = new op_node(tn_in, $1, $2, $3); }
+ ;
simple_expr: primary
| PLUS simple_expr %prec UPLUS {
@@ -498,6 +523,7 @@
{ $$ = new op_node(tn_not, NULL, $1, $2); }
| '@' primary { $$ = new address_node($1, $2); }
| AND primary %prec ADDRESS { $$ = new address_node($1, $2); }
+ ;
primary: constant
| '(' expr_list ')' { $$ = new expr_group_node($1, $2, $3); }
@@ -506,6 +532,7 @@
| primary '^' { $$ = new deref_expr_node($1, $2); }
| primary '[' expr_list ']' { $$ = new idx_expr_node($1, $2, $3, $4); }
| LOOPHOLE '(' type ',' expr ')' { $$ = new loophole_node($1, $2, $3, $4, $5, $6); }
+ ;
constant: record_constant
| ICONST { $$ = new integer_node($1); }
@@ -513,40 +540,52 @@
| SCONST { $$ = new string_node($1); }
| '[' set_elem_list ']' { $$ = new set_node($1, $2, $3); }
| IDENT { $$ = new atom_expr_node($1); }
+ ;
set_elem_list: { $$ = NULL; }
| set_elem
| set_elem ',' set_elem_list { $1->next = $3; $$ = $1; }
+ ;
set_elem: expr { $$ = new set_elem_node($1); }
| expr DOTS expr { $$ = new set_range_node($1, $2, $3); }
+ ;
expr_list: expr | expr ',' expr_list { $1->next = $3; $$ = $1; }
+ ;
act_param_list: act_param
| act_param ',' act_param_list { $1->next = $3; $$ = $1; }
+ ;
act_param: expr | { $$ = new skipped_node(curr_token->prev_relevant()); }
+ ;
record_constant: '(' field_init_list ')' {
$$ = new record_constant_node($1, $2, $3);
}
+;
field_init_list: field_init_item { $$ = $1; }
| field_init_item ';' field_init_list { $1->next = $3; $$ = $1; }
+ ;
field_init_item: IDENT ':' expr { $$ = new field_init_node($1, $2, $3); }
+ ;
expr_group: '(' expr_list ')' { $$ = new expr_group_node($1, $2, $3); }
+ ;
write_list: write_param | write_param ',' write_list { $1->next = $3; $$ = $1; }
+ ;
write_param: expr { $$ = new write_param_node($1); }
| expr ':' expr { $$ = new write_param_node($1, $2, $3); }
| expr ':' expr ':' expr { $$ = new write_param_node($1, $2, $3, $4, $5); }
+ ;
/*
@@ -590,31 +629,40 @@
label_decl_part: LABEL label_list ';'
{ $$ = new label_decl_part_node($1, $2, $3); }
+ ;
label_list: ICONST { $$ = new token_list($1); }
| ICONST ',' label_list { $$ = new token_list($1, $3); }
| IDENT { $$ = new token_list($1); }
| IDENT ',' label_list { $$ = new token_list($1, $3); }
+ ;
const_def_part: CONST const_def_list
{ $$ = new const_def_part_node($1, $2); }
+ ;
const_def_list: { $$ = NULL; }
| const_def ';' const_def_list { $1->next = $3; $$ = $1; }
+ ;
const_def: IDENT EQ expr { $$ = new const_def_node($1, $2, $3); }
| IDENT ':' const_type EQ expr { $$ = new typed_const_def_node($1, $2, $3, $4, $5); }
+;
type_def_part: TYPE type_def_list
{ $$ = new type_def_part_node($1, $2); }
+ ;
type_def_list: { $$ = NULL; }
| type_def ';' type_def_list { $1->next = $3; $$ = $1; }
+ ;
type_def: IDENT EQ type { $$ = new type_def_node($1, $2, $3); }
+ ;
var_decl_part: VAR var_decl_list
{ $$ = new var_decl_part_node($1, $2); }
+ ;
var_decl_list: { $$ = NULL; }
| var_decl
@@ -630,16 +678,19 @@
$1->next = $5; $$ = $1;
}
| var_decl ';' var_decl_list { $1->next = $3; $$ = $1; }
+ ;
var_decl: ident_list ':' type { $$ = new var_decl_node($1, $2, $3); }
| IDENT ORIGIN expr ':' simple_type
{ $$ = (var_decl_node*)new var_origin_decl_node($1, $2, $3, $4, $5); }
+ ;
proc_decl:
PROCEDURE IDENT formal_params
{ $$ = new proc_decl_node($1, $2, $3); }
| FUNCTION IDENT formal_params ':' type
{ $$ = new proc_decl_node($1, $2, $3, $4, $5); }
+ ;
proc_fwd_decl:
@@ -647,12 +698,14 @@
{ $$ = new proc_fwd_decl_node($1, $2, $3, NULL, NULL, $4, $5, $6); }
| FUNCTION IDENT formal_params ':' type ';' qualifiers ';'
{ $$ = new proc_fwd_decl_node($1, $2, $3, $4, $5, $6, $7, $8); }
+ ;
proc_spec:
PROCEDURE IDENT formal_params ';'
{ $$ = new proc_fwd_decl_node($1, $2, $3, NULL, NULL, $4); }
| FUNCTION IDENT formal_params ':' type ';'
{ $$ = new proc_fwd_decl_node($1, $2, $3, $4, $5, $6); }
+ ;
proc_def:
PROCEDURE IDENT formal_params ';' block ';'
@@ -671,26 +724,33 @@
{ $$ = new proc_def_node($1, NULL, NULL, $2, $3, $4, $5, $6, $7, $8, $9, $10); }
| FUNCTION IDENT ';' FAR ';' block ';'
{ $$ = new proc_def_node($1, NULL, NULL, $2, NULL, NULL, NULL, $3, $4, $5, $6, $7); }
+ ;
qualifiers: IDENT qualifiers { $$ = new token_list($1, $2); }
| SCOPE qualifiers { $$ = new token_list($1, $2); }
| IDENT { $$ = new token_list($1); }
| SCOPE { $$ = new token_list($1); }
+ ;
formal_params: { $$ = NULL; }
| '(' formal_param_list ')' { $$ = new param_list_node($1, $2, $3); }
+ ;
formal_param_list: formal_param
| formal_param ';' formal_param_list { $1->next = $3; $$ = $1; }
+ ;
formal_param: VAR param_decl { $$ = new var_decl_part_node($1, $2); }
| param_decl { $$ = $1; } | proc_decl
+ ;
param_decl: ident_list ':' param_type { $$ = new var_decl_node($1, $2, $3); }
| ident_list { $$ = new var_decl_node($1, NULL, NULL); }
+ ;
param_type: simple_type | conformant_array_type
+ ;
@@ -698,81 +758,106 @@
type: simple_type | array_type | record_type | object_type | set_type | file_type
| pointer_type | enum_type | range_type | string_type | fptr_type
+ ;
const_type: simple_type | const_array_type | record_type | const_set_type | string_type
+ ;
fptr_type: FUNCTION formal_params ':' type
{ $$ = new fptr_tpd_node($1, $2, $3, $4); }
| PROCEDURE formal_params { $$ = new fptr_tpd_node($1, $2); }
+ ;
string_type: STRING '[' expr ']' { $$ = new varying_tpd_node($1, $2, $3, $4); }
+ ;
simple_type: IDENT { $$ = new simple_tpd_node($1); }
| STRING { $$ = new string_tpd_node($1); }
+ ;
array_type: packed ARRAY '[' indices ']' OF type
{ $$ = new array_tpd_node($1, $2, $3, $4, $5, $6, $7); }
+ ;
const_array_type: packed ARRAY '[' indices ']' OF const_type
{ $$ = new array_tpd_node($1, $2, $3, $4, $5, $6, $7); }
+ ;
conformant_array_type: packed ARRAY '[' conformant_indices ']' OF simple_type
{ $$ = new array_tpd_node($1, $2, $3, $4, $5, $6, $7); }
| packed ARRAY '[' conformant_indices ']' OF conformant_array_type
{ $$ = new array_tpd_node($1, $2, $3, $4, $5, $6, $7); }
+ ;
enum_type: '(' ident_list ')' { $$ = new enum_tpd_node($1, $2, $3); }
+ ;
range_type: expr DOTS expr
{ $$ = new range_tpd_node($1, $2, $3); }
+ ;
pointer_type: '^' type { $$ = new ptr_tpd_node($1, $2); }
+ ;
set_type: packed SET OF type { $$ = new set_tpd_node($1, $2, $3, $4); }
+ ;
const_set_type: packed SET OF const_type { $$ = new set_tpd_node($1, $2, $3, $4); }
+ ;
record_type: packed RECORD field_list END
{ $$ = new record_tpd_node($1, $2, $3, $4); }
+ ;
object_type: OBJECT object_components END
{ $$ = new object_tpd_node($1, NULL, NULL, NULL, $2, $3); }
| OBJECT '(' IDENT ')' object_components END
{ $$ = new object_tpd_node($1, $2, $3, $4, $5, $6); }
+ ;
object_components: object_fields object_methods
{ $1->next = $2; $$ = $1; }
| object_methods
| object_fields
+ ;
object_fields: field_decl_list
{ $$ = new var_decl_part_node(NULL, $1); }
+ ;
field_decl_list: var_decl
| var_decl ';' { $$ = $1; }
| var_decl ';' field_decl_list { $1->next = $3; $$ = $1; }
+ ;
object_methods: proc_fwd_decl | proc_spec
| proc_fwd_decl object_methods { $1->next = $2; $$ = $1; }
| proc_spec object_methods { $1->next = $2; $$ = $1; }
+ ;
file_type: packed FIL OF type { $$ = new file_tpd_node($1, $2, $3, $4); }
+ ;
packed: { $$ = NULL; } | PACKED
+ ;
conformant_indices: conformant_index
| conformant_index ';' conformant_indices { $1->next = $3; $$ = $1; }
+ ;
conformant_index: IDENT DOTS IDENT ':' type
{ $$ = new conformant_index_node($1, $2, $3, $4, $5); }
+ ;
indices: index_spec | index_spec ',' indices
{ $1->next = $3; $$ = $1; }
+ ;
index_spec: simple_type { $$ = new type_index_node($1); }
| expr DOTS expr { $$ = new range_index_node($1, $2, $3); }
+ ;
field_list:
@@ -780,26 +865,32 @@
{ $$ = new field_list_node($1, $2); }
| fixed_part
{ $$ = new field_list_node($1); }
+ ;
fixed_part: var_decl_list
+ ;
variant_part: CASE selector OF variant_list
{
$$ = new variant_part_node($1, $2, $3, $4);
}
+;
selector: IDENT ':' type { $$ = new selector_node($1, $2, $3); }
| type { $$ = new selector_node(NULL, NULL, $1); }
+ ;
variant_list: variant
| variant ';' { $$ = $1; }
| variant ';' variant_list { $1->next = $3; $$ = $1; }
+ ;
variant: expr_list ':' '(' field_list ')'
{
$$ = new variant_node($1, $2, $3, $4, $5);
}
+;
%%
|