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authorPer Bothner <per@bothner.com>1993-04-07 22:15:48 +0000
committerPer Bothner <per@bothner.com>1993-04-07 22:15:48 +0000
commit8a177da6582bc176c0dd3b58583c8096674ea853 (patch)
treefd3dcf916ad17d96e1e1ef19f817df1af9c8737d /gdb/ch-exp.y
parentbee218aaac30e76d6a530d6656ff576cd1f2a618 (diff)
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* ch-exp.y: Remove ambiguities. Fix or add support for
UNOP_IND, UNOP_CAST, UNOP_ADDR, STRUCOP_STRUCT, OP_TYPE. * ch-typeprint.c (chill_print_type): Move support for TYPE_CODE_ARRAY and TYPE_CODE_STRING from here ... * ch-typeprint.c (chill_type_print_base): ... here. * ch-typeprint.c (chill_type_print_base): Improve support for PTR, REF, and FUNC types. * ch-valprint.c: Prefer H'%x format to 0x%s. * ch-valprint.c (chill_val_print): Add support for printing TYPE_CODE_REF (return for LOC parameters and variables). Use c_val_print to print random types (including ENUM). * ch-valprint,c (chill_print_value_fields): Make output look more like Chill tuples. * stabsread.c (read_struct_type): Factor common code.
Diffstat (limited to 'gdb/ch-exp.y')
-rw-r--r--gdb/ch-exp.y75
1 files changed, 43 insertions, 32 deletions
diff --git a/gdb/ch-exp.y b/gdb/ch-exp.y
index 0a2efd1..6788b55 100644
--- a/gdb/ch-exp.y
+++ b/gdb/ch-exp.y
@@ -181,6 +181,8 @@ yyerror PARAMS ((char *));
%token <voidval> EMPTINESS_LITERAL
%token <sval> CHARACTER_STRING_LITERAL
%token <sval> BIT_STRING_LITERAL
+%token <tsym> TYPENAME
+%token <sval> FIELD_NAME
%token <voidval> '.'
%token <voidval> ';'
@@ -291,11 +293,9 @@ yyerror PARAMS ((char *));
%type <voidval> upper_element
%type <voidval> first_element
%type <voidval> structure_primitive_value
-%type <voidval> field_name
%type <voidval> mode_argument
%type <voidval> upper_lower_argument
%type <voidval> length_argument
-%type <voidval> mode_name
%type <voidval> array_mode_name
%type <voidval> string_mode_name
%type <voidval> variant_structure_mode_name
@@ -304,13 +304,20 @@ yyerror PARAMS ((char *));
%type <voidval> subexpression
%type <voidval> case_label_specification
%type <voidval> buffer_location
-
%type <voidval> single_assignment_action
+%type <tsym> mode_name
%%
/* Z.200, 5.3.1 */
+start : value
+ | mode_name
+ { write_exp_elt_opcode(OP_TYPE);
+ write_exp_elt_type($1.type);
+ write_exp_elt_opcode(OP_TYPE);}
+ ;
+
value : expression
{
$$ = 0; /* FIXME */
@@ -333,9 +340,9 @@ location : access_name
{
$$ = 0; /* FIXME */
}
- | FIXME_02
+ | primitive_value POINTER
{
- $$ = 0; /* FIXME */
+ write_exp_elt_opcode (UNOP_IND);
}
;
@@ -588,9 +595,10 @@ value_array_slice: array_primitive_value '(' lower_element ':' upper_element ')'
/* Z.200, 5.2.10 */
-value_structure_field: structure_primitive_value '.' field_name
- {
- $$ = 0; /* FIXME */
+value_structure_field: primitive_value FIELD_NAME
+ { write_exp_elt_opcode (STRUCTOP_STRUCT);
+ write_exp_string ($2);
+ write_exp_elt_opcode (STRUCTOP_STRUCT);
}
;
@@ -598,7 +606,9 @@ value_structure_field: structure_primitive_value '.' field_name
expression_conversion: mode_name parenthesised_expression
{
- $$ = 0; /* FIXME */
+ write_exp_elt_opcode (UNOP_CAST);
+ write_exp_elt_type ($1.type);
+ write_exp_elt_opcode (UNOP_CAST);
}
;
@@ -648,6 +658,10 @@ expression : operand_0
{
$$ = 0; /* FIXME */
}
+ | single_assignment_action
+ {
+ $$ = 0; /* FIXME */
+ }
| conditional_expression
{
$$ = 0; /* FIXME */
@@ -710,10 +724,6 @@ operand_0 : operand_1
{
write_exp_elt_opcode (BINOP_BITWISE_XOR);
}
- | single_assignment_action
- {
- $$ = 0; /* FIXME */
- }
;
/* Z.200, 5.3.4 */
@@ -814,8 +824,6 @@ operand_4 : operand_5
;
/* Z.200, 5.3.8 */
-/* Note that we accept any expression for BINOP_CONCAT, not just
- integer literal expressions. (FIXME?) */
operand_5 : operand_6
{
@@ -829,7 +837,9 @@ operand_5 : operand_6
{
write_exp_elt_opcode (UNOP_LOGICAL_NOT);
}
- | parenthesised_expression operand_6
+ | parenthesised_expression CHARACTER_STRING_LITERAL
+/* We require the string operand to be a literal, to avoid some
+ nasty parsing ambiguities. */
{
write_exp_elt_opcode (BINOP_CONCAT);
}
@@ -839,7 +849,7 @@ operand_5 : operand_6
operand_6 : POINTER location
{
- $$ = 0; /* FIXME */
+ write_exp_elt_opcode (UNOP_ADDR);
}
| RECEIVE buffer_location
{
@@ -932,11 +942,10 @@ mode_argument : mode_name
}
;
-upper_lower_argument : location
- {
- $$ = 0; /* FIXME */
- }
- | expression
+mode_name : TYPENAME
+ ;
+
+upper_lower_argument : expression
{
$$ = 0; /* FIXME */
}
@@ -946,11 +955,7 @@ upper_lower_argument : location
}
;
-length_argument : location
- {
- $$ = 0; /* FIXME */
- }
- | expression
+length_argument : expression
{
$$ = 0; /* FIXME */
}
@@ -983,8 +988,6 @@ lower_element : FIXME_20 { $$ = 0; }
upper_element : FIXME_21 { $$ = 0; }
first_element : FIXME_22 { $$ = 0; }
structure_primitive_value: FIXME_23 { $$ = 0; }
-field_name : FIXME_24 { $$ = 0; }
-mode_name : FIXME_25 { $$ = 0; }
boolean_expression : FIXME_26 { $$ = 0; }
case_selector_list : FIXME_27 { $$ = 0; }
subexpression : FIXME_28 { $$ = 0; }
@@ -1762,6 +1765,7 @@ static const struct token tokentab2[] =
{
{ ":=", GDB_ASSIGNMENT },
{ "//", SLASH_SLASH },
+ { "->", POINTER },
{ "/=", NOTEQUAL },
{ "<=", LEQ },
{ ">=", GTR },
@@ -1797,7 +1801,6 @@ yylex ()
case ';':
case '!':
case '+':
- case '-':
case '*':
case '(':
case ')':
@@ -1896,6 +1899,7 @@ yylex ()
would already have found it. */
switch (*lexptr)
{
+ case '-':
case ':':
case '/':
case '<':
@@ -1976,8 +1980,10 @@ yylex ()
case LOC_LABEL:
return (LOCATION_NAME);
break;
- case LOC_UNDEF:
case LOC_TYPEDEF:
+ yylval.tsym.type = SYMBOL_TYPE (sym);
+ return TYPENAME;
+ case LOC_UNDEF:
case LOC_CONST_BYTES:
case LOC_OPTIMIZED_OUT:
error ("Symbol \"%s\" names no location.", simplename);
@@ -2000,7 +2006,12 @@ yylex ()
switch (*lexptr)
{
case '.': /* Not float for example. */
- return (*lexptr++);
+ lexptr++;
+ while (isspace (*lexptr)) lexptr++;
+ simplename = match_simple_name_string ();
+ if (!simplename)
+ return '.';
+ return FIELD_NAME;
}
return (ILLEGAL_TOKEN);