/* YACC parser for C expressions, for GDB.
- Copyright (C) 1986-2019 Free Software Foundation, Inc.
+ Copyright (C) 1986-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "objc-lang.h"
#include "typeprint.h"
#include "cp-abi.h"
+#include "type-stack.h"
-#define parse_type(ps) builtin_type (parse_gdbarch (ps))
+#define parse_type(ps) builtin_type (ps->gdbarch ())
/* Remap normal yacc parser interface names (yyparse, yylex, yyerror,
etc). */
/* Storage for some strings allocated during the parse. */
std::vector<gdb::unique_xmalloc_ptr<char>> strings;
+
+ /* When we find that lexptr (the global var defined in parse.c) is
+ pointing at a macro invocation, we expand the invocation, and call
+ scan_macro_expansion to save the old lexptr here and point lexptr
+ into the expanded text. When we reach the end of that, we call
+ end_macro_expansion to pop back to the value we saved here. The
+ macro expansion code promises to return only fully-expanded text,
+ so we don't need to "push" more than one level.
+
+ This is disgusting, of course. It would be cleaner to do all macro
+ expansion beforehand, and then hand that to lexptr. But we don't
+ really know where the expression ends. Remember, in a command like
+
+ (gdb) break *ADDRESS if CONDITION
+
+ we evaluate ADDRESS in the scope of the current frame, but we
+ evaluate CONDITION in the scope of the breakpoint's location. So
+ it's simply wrong to try to macro-expand the whole thing at once. */
+ const char *macro_original_text = nullptr;
+
+ /* We save all intermediate macro expansions on this obstack for the
+ duration of a single parse. The expansion text may sometimes have
+ to live past the end of the expansion, due to yacc lookahead.
+ Rather than try to be clever about saving the data for a single
+ token, we simply keep it all and delete it after parsing has
+ completed. */
+ auto_obstack expansion_obstack;
+
+ /* The type stack. */
+ struct type_stack type_stack;
};
/* This is set and cleared in c_parse. */
legal basetypes. */
%token SIGNED_KEYWORD LONG SHORT INT_KEYWORD CONST_KEYWORD VOLATILE_KEYWORD DOUBLE_KEYWORD
-%token <sval> VARIABLE
+%token <sval> DOLLAR_VARIABLE
%token <opcode> ASSIGN_MODIFY
;
exp : exp ARROW field_name COMPLETE
- { mark_struct_expression (pstate);
+ { pstate->mark_struct_expression ();
write_exp_elt_opcode (pstate, STRUCTOP_PTR);
write_exp_string (pstate, $3);
write_exp_elt_opcode (pstate, STRUCTOP_PTR); }
exp : exp ARROW COMPLETE
{ struct stoken s;
- mark_struct_expression (pstate);
+ pstate->mark_struct_expression ();
write_exp_elt_opcode (pstate, STRUCTOP_PTR);
s.ptr = "";
s.length = 0;
;
exp : exp ARROW '~' name COMPLETE
- { mark_struct_expression (pstate);
+ { pstate->mark_struct_expression ();
write_exp_elt_opcode (pstate, STRUCTOP_PTR);
write_destructor_name (pstate, $4);
write_exp_elt_opcode (pstate, STRUCTOP_PTR); }
;
exp : exp '.' field_name COMPLETE
- { mark_struct_expression (pstate);
+ { pstate->mark_struct_expression ();
write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
write_exp_string (pstate, $3);
write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); }
exp : exp '.' COMPLETE
{ struct stoken s;
- mark_struct_expression (pstate);
+ pstate->mark_struct_expression ();
write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
s.ptr = "";
s.length = 0;
;
exp : exp '.' '~' name COMPLETE
- { mark_struct_expression (pstate);
+ { pstate->mark_struct_expression ();
write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
write_destructor_name (pstate, $4);
write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); }
{
CORE_ADDR theclass;
- theclass = lookup_objc_class (parse_gdbarch (pstate),
- copy_name ($2.stoken));
+ std::string copy = copy_name ($2.stoken);
+ theclass = lookup_objc_class (pstate->gdbarch (),
+ copy.c_str ());
if (theclass == 0)
error (_("%s is not an ObjC Class"),
- copy_name ($2.stoken));
+ copy.c_str ());
write_exp_elt_opcode (pstate, OP_LONG);
write_exp_elt_type (pstate,
- parse_type (pstate)->builtin_int);
+ parse_type (pstate)->builtin_int);
write_exp_elt_longcst (pstate, (LONGEST) theclass);
write_exp_elt_opcode (pstate, OP_LONG);
start_msglist();
exp : exp '('
/* This is to save the value of arglist_len
being accumulated by an outer function call. */
- { start_arglist (); }
+ { pstate->start_arglist (); }
arglist ')' %prec ARROW
{ write_exp_elt_opcode (pstate, OP_FUNCALL);
write_exp_elt_longcst (pstate,
- (LONGEST) end_arglist ());
+ pstate->end_arglist ());
write_exp_elt_opcode (pstate, OP_FUNCALL); }
;
"func()::static_var" further below, which uses
function_method_void. */
exp : exp '(' ')' %prec ARROW
- { start_arglist ();
+ { pstate->start_arglist ();
write_exp_elt_opcode (pstate, OP_FUNCALL);
write_exp_elt_longcst (pstate,
- (LONGEST) end_arglist ());
+ pstate->end_arglist ());
write_exp_elt_opcode (pstate, OP_FUNCALL); }
;
/* This could potentially be a an argument defined
lookup function (Koenig). */
write_exp_elt_opcode (pstate, OP_ADL_FUNC);
- write_exp_elt_block (pstate,
- expression_context_block);
+ write_exp_elt_block
+ (pstate, pstate->expression_context_block);
write_exp_elt_sym (pstate,
NULL); /* Placeholder. */
write_exp_string (pstate, $1.stoken);
/* This is to save the value of arglist_len
being accumulated by an outer function call. */
- start_arglist ();
+ pstate->start_arglist ();
}
arglist ')' %prec ARROW
{
write_exp_elt_opcode (pstate, OP_FUNCALL);
write_exp_elt_longcst (pstate,
- (LONGEST) end_arglist ());
+ pstate->end_arglist ());
write_exp_elt_opcode (pstate, OP_FUNCALL);
}
;
lcurly : '{'
- { start_arglist (); }
+ { pstate->start_arglist (); }
;
arglist :
;
arglist : exp
- { arglist_len = 1; }
+ { pstate->arglist_len = 1; }
;
arglist : arglist ',' exp %prec ABOVE_COMMA
- { arglist_len++; }
+ { pstate->arglist_len++; }
;
function_method: exp '(' parameter_typelist ')' const_or_volatile
/* Save the const/volatile qualifiers as
recorded by the const_or_volatile
production's actions. */
- write_exp_elt_longcst (pstate,
- follow_type_instance_flags ());
+ write_exp_elt_longcst
+ (pstate,
+ (cpstate->type_stack
+ .follow_type_instance_flags ()));
write_exp_elt_longcst (pstate, len);
for (type *type_elt : *type_list)
write_exp_elt_type (pstate, type_elt);
function_method_void: exp '(' ')' const_or_volatile
{ write_exp_elt_opcode (pstate, TYPE_INSTANCE);
/* See above. */
- write_exp_elt_longcst (pstate,
- follow_type_instance_flags ());
+ write_exp_elt_longcst
+ (pstate,
+ cpstate->type_stack.follow_type_instance_flags ());
write_exp_elt_longcst (pstate, 0);
write_exp_elt_longcst (pstate, 0);
write_exp_elt_opcode (pstate, TYPE_INSTANCE);
;
rcurly : '}'
- { $$ = end_arglist () - 1; }
+ { $$ = pstate->end_arglist () - 1; }
;
exp : lcurly arglist rcurly %prec ARROW
{ write_exp_elt_opcode (pstate, OP_ARRAY);
exp : variable
;
-exp : VARIABLE
+exp : DOLLAR_VARIABLE
{
write_dollar_variable (pstate, $1);
}
{ struct type *type = $3;
write_exp_elt_opcode (pstate, OP_LONG);
write_exp_elt_type (pstate, lookup_signed_typename
- (parse_language (pstate),
- parse_gdbarch (pstate),
+ (pstate->language (),
"int"));
type = check_typedef (type);
$$ = SYMBOL_BLOCK_VALUE ($1.sym.symbol);
else
error (_("No file or function \"%s\"."),
- copy_name ($1.stoken));
+ copy_name ($1.stoken).c_str ());
}
| FILENAME
{
;
block : block COLONCOLON name
- { struct symbol *tem
- = lookup_symbol (copy_name ($3), $1,
+ {
+ std::string copy = copy_name ($3);
+ struct symbol *tem
+ = lookup_symbol (copy.c_str (), $1,
VAR_DOMAIN, NULL).symbol;
if (!tem || SYMBOL_CLASS (tem) != LOC_BLOCK)
error (_("No function \"%s\" in specified context."),
- copy_name ($3));
+ copy.c_str ());
$$ = SYMBOL_BLOCK_VALUE (tem); }
;
|| !symbol_read_needs_frame (sym))
error (_("@entry can be used only for function "
"parameters, not for \"%s\""),
- copy_name ($1.stoken));
+ copy_name ($1.stoken).c_str ());
write_exp_elt_opcode (pstate, OP_VAR_ENTRY_VALUE);
write_exp_elt_sym (pstate, sym);
;
variable: block COLONCOLON name
- { struct block_symbol sym
- = lookup_symbol (copy_name ($3), $1,
+ {
+ std::string copy = copy_name ($3);
+ struct block_symbol sym
+ = lookup_symbol (copy.c_str (), $1,
VAR_DOMAIN, NULL);
if (sym.symbol == 0)
error (_("No symbol \"%s\" in specified context."),
- copy_name ($3));
+ copy.c_str ());
if (symbol_read_needs_frame (sym.symbol))
-
- innermost_block.update (sym);
+ pstate->block_tracker->update (sym);
write_exp_elt_opcode (pstate, OP_VAR_VALUE);
write_exp_elt_block (pstate, sym.block);
}
| TYPENAME COLONCOLON name COLONCOLON name
{
- char *copy = copy_name ($3);
+ std::string copy = copy_name ($3);
error (_("No type \"%s\" within class "
"or namespace \"%s\"."),
- copy, TYPE_SAFE_NAME ($1.type));
+ copy.c_str (), TYPE_SAFE_NAME ($1.type));
}
;
variable: qualified_name
| COLONCOLON name_not_typename
{
- char *name = copy_name ($2.stoken);
+ std::string name = copy_name ($2.stoken);
struct symbol *sym;
struct bound_minimal_symbol msymbol;
sym
- = lookup_symbol (name, (const struct block *) NULL,
+ = lookup_symbol (name.c_str (),
+ (const struct block *) NULL,
VAR_DOMAIN, NULL).symbol;
if (sym)
{
break;
}
- msymbol = lookup_bound_minimal_symbol (name);
+ msymbol = lookup_bound_minimal_symbol (name.c_str ());
if (msymbol.minsym != NULL)
write_exp_msymbol (pstate, msymbol);
else if (!have_full_symbols () && !have_partial_symbols ())
error (_("No symbol table is loaded. Use the \"file\" command."));
else
- error (_("No symbol \"%s\" in current context."), name);
+ error (_("No symbol \"%s\" in current context."),
+ name.c_str ());
}
;
if (sym.symbol)
{
if (symbol_read_needs_frame (sym.symbol))
- innermost_block.update (sym);
+ pstate->block_tracker->update (sym);
/* If we found a function, see if it's
an ifunc resolver that has the same
/* C++: it hangs off of `this'. Must
not inadvertently convert from a method call
to data ref. */
- innermost_block.update (sym);
+ pstate->block_tracker->update (sym);
write_exp_elt_opcode (pstate, OP_THIS);
write_exp_elt_opcode (pstate, OP_THIS);
write_exp_elt_opcode (pstate, STRUCTOP_PTR);
}
else
{
- char *arg = copy_name ($1.stoken);
+ std::string arg = copy_name ($1.stoken);
bound_minimal_symbol msymbol
- = lookup_bound_minimal_symbol (arg);
+ = lookup_bound_minimal_symbol (arg.c_str ());
if (msymbol.minsym == NULL)
{
if (!have_full_symbols () && !have_partial_symbols ())
error (_("No symbol table is loaded. Use the \"file\" command."));
else
error (_("No symbol \"%s\" in current context."),
- copy_name ($1.stoken));
+ arg.c_str ());
}
/* This minsym might be an alias for
;
space_identifier : '@' NAME
- { insert_type_address_space (pstate, copy_name ($2.stoken)); }
+ {
+ cpstate->type_stack.insert (pstate,
+ copy_name ($2.stoken).c_str ());
+ }
;
const_or_volatile: const_or_volatile_noopt
ptr_operator:
ptr_operator '*'
- { insert_type (tp_pointer); }
+ { cpstate->type_stack.insert (tp_pointer); }
const_or_volatile_or_space_identifier
| '*'
- { insert_type (tp_pointer); }
+ { cpstate->type_stack.insert (tp_pointer); }
const_or_volatile_or_space_identifier
| '&'
- { insert_type (tp_reference); }
+ { cpstate->type_stack.insert (tp_reference); }
| '&' ptr_operator
- { insert_type (tp_reference); }
+ { cpstate->type_stack.insert (tp_reference); }
| ANDAND
- { insert_type (tp_rvalue_reference); }
+ { cpstate->type_stack.insert (tp_rvalue_reference); }
| ANDAND ptr_operator
- { insert_type (tp_rvalue_reference); }
+ { cpstate->type_stack.insert (tp_rvalue_reference); }
;
ptr_operator_ts: ptr_operator
{
- $$ = get_type_stack ();
+ $$ = cpstate->type_stack.create ();
cpstate->type_stacks.emplace_back ($$);
}
;
abs_decl: ptr_operator_ts direct_abs_decl
- { $$ = append_type_stack ($2, $1); }
+ { $$ = $2->append ($1); }
| ptr_operator_ts
| direct_abs_decl
;
{ $$ = $2; }
| direct_abs_decl array_mod
{
- push_type_stack ($1);
- push_type_int ($2);
- push_type (tp_array);
- $$ = get_type_stack ();
+ cpstate->type_stack.push ($1);
+ cpstate->type_stack.push ($2);
+ cpstate->type_stack.push (tp_array);
+ $$ = cpstate->type_stack.create ();
+ cpstate->type_stacks.emplace_back ($$);
}
| array_mod
{
- push_type_int ($1);
- push_type (tp_array);
- $$ = get_type_stack ();
+ cpstate->type_stack.push ($1);
+ cpstate->type_stack.push (tp_array);
+ $$ = cpstate->type_stack.create ();
+ cpstate->type_stacks.emplace_back ($$);
}
| direct_abs_decl func_mod
{
- push_type_stack ($1);
- push_typelist ($2);
- $$ = get_type_stack ();
+ cpstate->type_stack.push ($1);
+ cpstate->type_stack.push ($2);
+ $$ = cpstate->type_stack.create ();
+ cpstate->type_stacks.emplace_back ($$);
}
| func_mod
{
- push_typelist ($1);
- $$ = get_type_stack ();
+ cpstate->type_stack.push ($1);
+ $$ = cpstate->type_stack.create ();
+ cpstate->type_stacks.emplace_back ($$);
}
;
: TYPENAME
{ $$ = $1.type; }
| INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"int"); }
| LONG
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long"); }
| SHORT
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"short"); }
| LONG INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long"); }
| LONG SIGNED_KEYWORD INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long"); }
| LONG SIGNED_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long"); }
| SIGNED_KEYWORD LONG INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long"); }
| UNSIGNED LONG INT_KEYWORD
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"long"); }
| LONG UNSIGNED INT_KEYWORD
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"long"); }
| LONG UNSIGNED
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"long"); }
| LONG LONG
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long long"); }
| LONG LONG INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long long"); }
| LONG LONG SIGNED_KEYWORD INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long long"); }
| LONG LONG SIGNED_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long long"); }
| SIGNED_KEYWORD LONG LONG
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long long"); }
| SIGNED_KEYWORD LONG LONG INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long long"); }
| UNSIGNED LONG LONG
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"long long"); }
| UNSIGNED LONG LONG INT_KEYWORD
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"long long"); }
| LONG LONG UNSIGNED
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"long long"); }
| LONG LONG UNSIGNED INT_KEYWORD
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"long long"); }
| SHORT INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"short"); }
| SHORT SIGNED_KEYWORD INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"short"); }
| SHORT SIGNED_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"short"); }
| UNSIGNED SHORT INT_KEYWORD
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"short"); }
| SHORT UNSIGNED
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"short"); }
| SHORT UNSIGNED INT_KEYWORD
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"short"); }
| DOUBLE_KEYWORD
- { $$ = lookup_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_typename (pstate->language (),
"double",
- (struct block *) NULL,
+ NULL,
0); }
| LONG DOUBLE_KEYWORD
- { $$ = lookup_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_typename (pstate->language (),
"long double",
- (struct block *) NULL,
+ NULL,
0); }
| STRUCT name
- { $$ = lookup_struct (copy_name ($2),
- expression_context_block); }
+ { $$
+ = lookup_struct (copy_name ($2).c_str (),
+ pstate->expression_context_block);
+ }
| STRUCT COMPLETE
{
- mark_completion_tag (TYPE_CODE_STRUCT, "", 0);
+ pstate->mark_completion_tag (TYPE_CODE_STRUCT,
+ "", 0);
$$ = NULL;
}
| STRUCT name COMPLETE
{
- mark_completion_tag (TYPE_CODE_STRUCT, $2.ptr,
- $2.length);
+ pstate->mark_completion_tag (TYPE_CODE_STRUCT,
+ $2.ptr, $2.length);
$$ = NULL;
}
| CLASS name
- { $$ = lookup_struct (copy_name ($2),
- expression_context_block); }
+ { $$ = lookup_struct
+ (copy_name ($2).c_str (),
+ pstate->expression_context_block);
+ }
| CLASS COMPLETE
{
- mark_completion_tag (TYPE_CODE_STRUCT, "", 0);
+ pstate->mark_completion_tag (TYPE_CODE_STRUCT,
+ "", 0);
$$ = NULL;
}
| CLASS name COMPLETE
{
- mark_completion_tag (TYPE_CODE_STRUCT, $2.ptr,
- $2.length);
+ pstate->mark_completion_tag (TYPE_CODE_STRUCT,
+ $2.ptr, $2.length);
$$ = NULL;
}
| UNION name
- { $$ = lookup_union (copy_name ($2),
- expression_context_block); }
+ { $$
+ = lookup_union (copy_name ($2).c_str (),
+ pstate->expression_context_block);
+ }
| UNION COMPLETE
{
- mark_completion_tag (TYPE_CODE_UNION, "", 0);
+ pstate->mark_completion_tag (TYPE_CODE_UNION,
+ "", 0);
$$ = NULL;
}
| UNION name COMPLETE
{
- mark_completion_tag (TYPE_CODE_UNION, $2.ptr,
- $2.length);
+ pstate->mark_completion_tag (TYPE_CODE_UNION,
+ $2.ptr, $2.length);
$$ = NULL;
}
| ENUM name
- { $$ = lookup_enum (copy_name ($2),
- expression_context_block); }
+ { $$ = lookup_enum (copy_name ($2).c_str (),
+ pstate->expression_context_block);
+ }
| ENUM COMPLETE
{
- mark_completion_tag (TYPE_CODE_ENUM, "", 0);
+ pstate->mark_completion_tag (TYPE_CODE_ENUM, "", 0);
$$ = NULL;
}
| ENUM name COMPLETE
{
- mark_completion_tag (TYPE_CODE_ENUM, $2.ptr,
- $2.length);
+ pstate->mark_completion_tag (TYPE_CODE_ENUM, $2.ptr,
+ $2.length);
$$ = NULL;
}
| UNSIGNED type_name
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
TYPE_NAME($2.type)); }
| UNSIGNED
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"int"); }
| SIGNED_KEYWORD type_name
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
TYPE_NAME($2.type)); }
| SIGNED_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"int"); }
/* It appears that this rule for templates is never
reduced; template recognition happens by lookahead
in the token processing code in yylex. */
| TEMPLATE name '<' type '>'
- { $$ = lookup_template_type(copy_name($2), $4,
- expression_context_block);
+ { $$ = lookup_template_type
+ (copy_name($2).c_str (), $4,
+ pstate->expression_context_block);
}
| const_or_volatile_or_space_identifier_noopt typebase
- { $$ = follow_types ($2); }
+ { $$ = cpstate->type_stack.follow_types ($2); }
| typebase const_or_volatile_or_space_identifier_noopt
- { $$ = follow_types ($1); }
+ { $$ = cpstate->type_stack.follow_types ($1); }
;
type_name: TYPENAME
{
$$.stoken.ptr = "int";
$$.stoken.length = 3;
- $$.type = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ $$.type = lookup_signed_typename (pstate->language (),
"int");
}
| LONG
{
$$.stoken.ptr = "long";
$$.stoken.length = 4;
- $$.type = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ $$.type = lookup_signed_typename (pstate->language (),
"long");
}
| SHORT
{
$$.stoken.ptr = "short";
$$.stoken.length = 5;
- $$.type = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ $$.type = lookup_signed_typename (pstate->language (),
"short");
}
;
ptype : typebase
| ptype abs_decl
{
- push_type_stack ($2);
- $$ = follow_types ($1);
+ cpstate->type_stack.push ($2);
+ $$ = cpstate->type_stack.follow_types ($1);
}
;
conversion_type_id: typebase conversion_declarator
- { $$ = follow_types ($1); }
+ { $$ = cpstate->type_stack.follow_types ($1); }
;
conversion_declarator: /* Nothing. */
;
const_or_volatile_noopt: const_and_volatile
- { insert_type (tp_const);
- insert_type (tp_volatile);
+ { cpstate->type_stack.insert (tp_const);
+ cpstate->type_stack.insert (tp_volatile);
}
| CONST_KEYWORD
- { insert_type (tp_const); }
+ { cpstate->type_stack.insert (tp_const); }
| VOLATILE_KEYWORD
- { insert_type (tp_volatile); }
+ { cpstate->type_stack.insert (tp_volatile); }
;
oper: OPERATOR NEW
struct field_of_this_result is_a_field_of_this;
$$.stoken = $1;
- $$.sym = lookup_symbol ($1.ptr,
- expression_context_block,
- VAR_DOMAIN,
- &is_a_field_of_this);
+ $$.sym
+ = lookup_symbol ($1.ptr,
+ pstate->expression_context_block,
+ VAR_DOMAIN,
+ &is_a_field_of_this);
$$.is_a_field_of_this
= is_a_field_of_this.type != NULL;
}
un = n >> 2;
if (long_p == 0
- && (un >> (gdbarch_int_bit (parse_gdbarch (par_state)) - 2)) == 0)
+ && (un >> (gdbarch_int_bit (par_state->gdbarch ()) - 2)) == 0)
{
high_bit
- = ((ULONGEST)1) << (gdbarch_int_bit (parse_gdbarch (par_state)) - 1);
+ = ((ULONGEST)1) << (gdbarch_int_bit (par_state->gdbarch ()) - 1);
/* A large decimal (not hex or octal) constant (between INT_MAX
and UINT_MAX) is a long or unsigned long, according to ANSI,
signed_type = parse_type (par_state)->builtin_int;
}
else if (long_p <= 1
- && (un >> (gdbarch_long_bit (parse_gdbarch (par_state)) - 2)) == 0)
+ && (un >> (gdbarch_long_bit (par_state->gdbarch ()) - 2)) == 0)
{
high_bit
- = ((ULONGEST)1) << (gdbarch_long_bit (parse_gdbarch (par_state)) - 1);
+ = ((ULONGEST)1) << (gdbarch_long_bit (par_state->gdbarch ()) - 1);
unsigned_type = parse_type (par_state)->builtin_unsigned_long;
signed_type = parse_type (par_state)->builtin_long;
}
{
int shift;
if (sizeof (ULONGEST) * HOST_CHAR_BIT
- < gdbarch_long_long_bit (parse_gdbarch (par_state)))
+ < gdbarch_long_long_bit (par_state->gdbarch ()))
/* A long long does not fit in a LONGEST. */
shift = (sizeof (ULONGEST) * HOST_CHAR_BIT - 1);
else
- shift = (gdbarch_long_long_bit (parse_gdbarch (par_state)) - 1);
+ shift = (gdbarch_long_long_bit (par_state->gdbarch ()) - 1);
high_bit = (ULONGEST) 1 << shift;
unsigned_type = parse_type (par_state)->builtin_unsigned_long_long;
signed_type = parse_type (par_state)->builtin_long_long;
{"typeid", TYPEID, OP_TYPEID, FLAG_CXX}
};
-/* When we find that lexptr (the global var defined in parse.c) is
- pointing at a macro invocation, we expand the invocation, and call
- scan_macro_expansion to save the old lexptr here and point lexptr
- into the expanded text. When we reach the end of that, we call
- end_macro_expansion to pop back to the value we saved here. The
- macro expansion code promises to return only fully-expanded text,
- so we don't need to "push" more than one level.
-
- This is disgusting, of course. It would be cleaner to do all macro
- expansion beforehand, and then hand that to lexptr. But we don't
- really know where the expression ends. Remember, in a command like
-
- (gdb) break *ADDRESS if CONDITION
-
- we evaluate ADDRESS in the scope of the current frame, but we
- evaluate CONDITION in the scope of the breakpoint's location. So
- it's simply wrong to try to macro-expand the whole thing at once. */
-static const char *macro_original_text;
-
-/* We save all intermediate macro expansions on this obstack for the
- duration of a single parse. The expansion text may sometimes have
- to live past the end of the expansion, due to yacc lookahead.
- Rather than try to be clever about saving the data for a single
- token, we simply keep it all and delete it after parsing has
- completed. */
-static struct obstack expansion_obstack;
static void
scan_macro_expansion (char *expansion)
{
- char *copy;
+ const char *copy;
/* We'd better not be trying to push the stack twice. */
- gdb_assert (! macro_original_text);
+ gdb_assert (! cpstate->macro_original_text);
/* Copy to the obstack, and then free the intermediate
expansion. */
- copy = (char *) obstack_copy0 (&expansion_obstack, expansion,
- strlen (expansion));
+ copy = obstack_strdup (&cpstate->expansion_obstack, expansion);
xfree (expansion);
/* Save the old lexptr value, so we can return to it when we're done
parsing the expanded text. */
- macro_original_text = lexptr;
- lexptr = copy;
+ cpstate->macro_original_text = pstate->lexptr;
+ pstate->lexptr = copy;
}
static int
scanning_macro_expansion (void)
{
- return macro_original_text != 0;
+ return cpstate->macro_original_text != 0;
}
static void
finished_macro_expansion (void)
{
/* There'd better be something to pop back to. */
- gdb_assert (macro_original_text);
+ gdb_assert (cpstate->macro_original_text);
/* Pop back to the original text. */
- lexptr = macro_original_text;
- macro_original_text = 0;
-}
-
-static void
-scan_macro_cleanup (void *dummy)
-{
- if (macro_original_text)
- finished_macro_expansion ();
-
- obstack_free (&expansion_obstack, NULL);
+ pstate->lexptr = cpstate->macro_original_text;
+ cpstate->macro_original_text = 0;
}
/* Return true iff the token represents a C++ cast operator. */
operator -- either '.' or ARROW. */
static bool last_was_structop;
+/* Depth of parentheses. */
+static int paren_depth;
+
/* Read one token, getting characters through lexptr. */
static int
unsigned int i;
const char *tokstart;
bool saw_structop = last_was_structop;
- char *copy;
last_was_structop = false;
*is_quoted_name = false;
/* Check if this is a macro invocation that we need to expand. */
if (! scanning_macro_expansion ())
{
- char *expanded = macro_expand_next (&lexptr,
+ char *expanded = macro_expand_next (&pstate->lexptr,
standard_macro_lookup,
expression_macro_scope);
scan_macro_expansion (expanded);
}
- prev_lexptr = lexptr;
+ pstate->prev_lexptr = pstate->lexptr;
- tokstart = lexptr;
+ tokstart = pstate->lexptr;
/* See if it is a special token of length 3. */
for (i = 0; i < sizeof tokentab3 / sizeof tokentab3[0]; i++)
if (strncmp (tokstart, tokentab3[i].oper, 3) == 0)
{
if ((tokentab3[i].flags & FLAG_CXX) != 0
- && parse_language (par_state)->la_language != language_cplus)
+ && par_state->language ()->la_language != language_cplus)
break;
- lexptr += 3;
+ pstate->lexptr += 3;
yylval.opcode = tokentab3[i].opcode;
return tokentab3[i].token;
}
if (strncmp (tokstart, tokentab2[i].oper, 2) == 0)
{
if ((tokentab2[i].flags & FLAG_CXX) != 0
- && parse_language (par_state)->la_language != language_cplus)
+ && par_state->language ()->la_language != language_cplus)
break;
- lexptr += 2;
+ pstate->lexptr += 2;
yylval.opcode = tokentab2[i].opcode;
if (tokentab2[i].token == ARROW)
last_was_structop = 1;
saw_name_at_eof = 0;
return COMPLETE;
}
- else if (parse_completion && saw_structop)
+ else if (par_state->parse_completion && saw_structop)
return COMPLETE;
else
return 0;
case ' ':
case '\t':
case '\n':
- lexptr++;
+ pstate->lexptr++;
goto retry;
case '[':
case '(':
paren_depth++;
- lexptr++;
- if (parse_language (par_state)->la_language == language_objc
+ pstate->lexptr++;
+ if (par_state->language ()->la_language == language_objc
&& c == '[')
return OBJC_LBRAC;
return c;
if (paren_depth == 0)
return 0;
paren_depth--;
- lexptr++;
+ pstate->lexptr++;
return c;
case ',':
- if (comma_terminates
+ if (pstate->comma_terminates
&& paren_depth == 0
&& ! scanning_macro_expansion ())
return 0;
- lexptr++;
+ pstate->lexptr++;
return c;
case '.':
/* Might be a floating point number. */
- if (lexptr[1] < '0' || lexptr[1] > '9')
+ if (pstate->lexptr[1] < '0' || pstate->lexptr[1] > '9')
{
last_was_structop = true;
goto symbol; /* Nope, must be a symbol. */
err_copy[p - tokstart] = 0;
error (_("Invalid number \"%s\"."), err_copy);
}
- lexptr = p;
+ pstate->lexptr = p;
return toktype;
}
{
const char *p = &tokstart[1];
- if (parse_language (par_state)->la_language == language_objc)
+ if (par_state->language ()->la_language == language_objc)
{
size_t len = strlen ("selector");
if (strncmp (p, "selector", len) == 0
&& (p[len] == '\0' || ISSPACE (p[len])))
{
- lexptr = p + len;
+ pstate->lexptr = p + len;
return SELECTOR;
}
else if (*p == '"')
if (strncmp (p, "entry", len) == 0 && !c_ident_is_alnum (p[len])
&& p[len] != '_')
{
- lexptr = &p[len];
+ pstate->lexptr = &p[len];
return ENTRY;
}
}
case '{':
case '}':
symbol:
- lexptr++;
+ pstate->lexptr++;
return c;
case 'L':
parse_string:
{
int host_len;
- int result = parse_string_or_char (tokstart, &lexptr, &yylval.tsval,
- &host_len);
+ int result = parse_string_or_char (tokstart, &pstate->lexptr,
+ &yylval.tsval, &host_len);
if (result == CHAR)
{
if (host_len == 0)
else if (host_len > 2 && c == '\'')
{
++tokstart;
- namelen = lexptr - tokstart - 1;
+ namelen = pstate->lexptr - tokstart - 1;
*is_quoted_name = true;
goto tryname;
return 0;
}
- lexptr += namelen;
+ pstate->lexptr += namelen;
tryname:
yylval.sval.length = namelen;
/* Catch specific keywords. */
- copy = copy_name (yylval.sval);
+ std::string copy = copy_name (yylval.sval);
for (i = 0; i < sizeof ident_tokens / sizeof ident_tokens[0]; i++)
- if (strcmp (copy, ident_tokens[i].oper) == 0)
+ if (copy == ident_tokens[i].oper)
{
if ((ident_tokens[i].flags & FLAG_CXX) != 0
- && parse_language (par_state)->la_language != language_cplus)
+ && par_state->language ()->la_language != language_cplus)
break;
if ((ident_tokens[i].flags & FLAG_SHADOW) != 0)
{
struct field_of_this_result is_a_field_of_this;
- if (lookup_symbol (copy, expression_context_block,
+ if (lookup_symbol (copy.c_str (),
+ pstate->expression_context_block,
VAR_DOMAIN,
- (parse_language (par_state)->la_language
+ (par_state->language ()->la_language
== language_cplus ? &is_a_field_of_this
: NULL)).symbol
!= NULL)
}
if (*tokstart == '$')
- return VARIABLE;
+ return DOLLAR_VARIABLE;
- if (parse_completion && *lexptr == '\0')
+ if (pstate->parse_completion && *pstate->lexptr == '\0')
saw_name_at_eof = 1;
yylval.ssym.stoken = yylval.sval;
bool is_quoted_name, bool is_after_structop)
{
struct block_symbol bsym;
- char *copy;
struct field_of_this_result is_a_field_of_this;
- copy = copy_name (yylval.sval);
+ std::string copy = copy_name (yylval.sval);
/* Initialize this in case we *don't* use it in this call; that way
we can refer to it unconditionally below. */
memset (&is_a_field_of_this, 0, sizeof (is_a_field_of_this));
- bsym = lookup_symbol (copy, block, VAR_DOMAIN,
- parse_language (par_state)->la_name_of_this
+ bsym = lookup_symbol (copy.c_str (), block, VAR_DOMAIN,
+ par_state->language ()->la_name_of_this
? &is_a_field_of_this : NULL);
if (bsym.symbol && SYMBOL_CLASS (bsym.symbol) == LOC_BLOCK)
{
struct field_of_this_result inner_is_a_field_of_this;
- bsym = lookup_symbol (copy, block, STRUCT_DOMAIN,
+ bsym = lookup_symbol (copy.c_str (), block, STRUCT_DOMAIN,
&inner_is_a_field_of_this);
if (bsym.symbol != NULL)
{
/* See if it's a file name. */
struct symtab *symtab;
- symtab = lookup_symtab (copy);
+ symtab = lookup_symtab (copy.c_str ());
if (symtab)
{
yylval.bval = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab),
}
/* See if it's an ObjC classname. */
- if (parse_language (par_state)->la_language == language_objc && !bsym.symbol)
+ if (par_state->language ()->la_language == language_objc && !bsym.symbol)
{
- CORE_ADDR Class = lookup_objc_class (parse_gdbarch (par_state), copy);
+ CORE_ADDR Class = lookup_objc_class (par_state->gdbarch (),
+ copy.c_str ());
if (Class)
{
struct symbol *sym;
yylval.theclass.theclass = Class;
- sym = lookup_struct_typedef (copy, expression_context_block, 1);
+ sym = lookup_struct_typedef (copy.c_str (),
+ par_state->expression_context_block, 1);
if (sym)
yylval.theclass.type = SYMBOL_TYPE (sym);
return CLASSNAME;
|| (copy[0] >= 'A' && copy[0] < 'A' + input_radix - 10)))
{
YYSTYPE newlval; /* Its value is ignored. */
- int hextype = parse_number (par_state, copy, yylval.sval.length,
+ int hextype = parse_number (par_state, copy.c_str (), yylval.sval.length,
0, &newlval);
if (hextype == INT)
yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL;
if (bsym.symbol == NULL
- && parse_language (par_state)->la_language == language_cplus
+ && par_state->language ()->la_language == language_cplus
&& is_a_field_of_this.type == NULL
- && lookup_minimal_symbol (copy, NULL, NULL).minsym == NULL)
+ && lookup_minimal_symbol (copy.c_str (), NULL, NULL).minsym == NULL)
return UNKNOWN_CPP_NAME;
return NAME;
const struct block *block, struct type *context)
{
struct type *type;
- char *copy;
if (context == NULL)
return classify_name (par_state, block, false, false);
if (!type_aggregate_p (type))
return ERROR;
- copy = copy_name (yylval.ssym.stoken);
+ std::string copy = copy_name (yylval.ssym.stoken);
/* N.B. We assume the symbol can only be in VAR_DOMAIN. */
- yylval.ssym.sym = cp_lookup_nested_symbol (type, copy, block, VAR_DOMAIN);
+ yylval.ssym.sym = cp_lookup_nested_symbol (type, copy.c_str (), block,
+ VAR_DOMAIN);
/* If no symbol was found, search for a matching base class named
COPY. This will allow users to enter qualified names of class members
relative to the `this' pointer. */
if (yylval.ssym.sym.symbol == NULL)
{
- struct type *base_type = cp_find_type_baseclass_by_name (type, copy);
+ struct type *base_type = cp_find_type_baseclass_by_name (type,
+ copy.c_str ());
if (base_type != NULL)
{
named COPY when we really wanted a base class of the same name.
Double-check this case by looking for a base class. */
{
- struct type *base_type = cp_find_type_baseclass_by_name (type, copy);
+ struct type *base_type
+ = cp_find_type_baseclass_by_name (type, copy.c_str ());
if (base_type != NULL)
{
name-like token. */
current.token = lex_one_token (pstate, &is_quoted_name);
if (current.token == NAME)
- current.token = classify_name (pstate, expression_context_block,
+ current.token = classify_name (pstate, pstate->expression_context_block,
is_quoted_name, last_lex_was_structop);
- if (parse_language (pstate)->la_language != language_cplus
+ if (pstate->language ()->la_language != language_cplus
|| (current.token != TYPENAME && current.token != COLONCOLON
&& current.token != FILENAME))
return current.token;
else
{
gdb_assert (current.token == TYPENAME);
- search_block = expression_context_block;
+ search_block = pstate->expression_context_block;
obstack_grow (&name_obstack, current.value.sval.ptr,
current.value.sval.length);
context_type = current.value.tsym.type;
if (checkpoint > 0)
{
current.value.sval.ptr
- = (const char *) obstack_copy0 (&expansion_obstack,
- current.value.sval.ptr,
- current.value.sval.length);
+ = obstack_strndup (&cpstate->expansion_obstack,
+ current.value.sval.ptr,
+ current.value.sval.length);
token_fifo[0] = current;
if (checkpoint > 1)
int
c_parse (struct parser_state *par_state)
{
- int result;
- struct cleanup *back_to;
-
/* Setting up the parser state. */
scoped_restore pstate_restore = make_scoped_restore (&pstate);
gdb_assert (par_state != NULL);
gdb::unique_xmalloc_ptr<struct macro_scope> macro_scope;
- if (expression_context_block)
- macro_scope = sal_macro_scope (find_pc_line (expression_context_pc, 0));
+ if (par_state->expression_context_block)
+ macro_scope
+ = sal_macro_scope (find_pc_line (par_state->expression_context_pc, 0));
else
macro_scope = default_macro_scope ();
if (! macro_scope)
scoped_restore restore_macro_scope
= make_scoped_restore (&expression_macro_scope, macro_scope.get ());
- /* Initialize macro expansion code. */
- obstack_init (&expansion_obstack);
- gdb_assert (! macro_original_text);
- /* Note that parsing (within yyparse) freely installs cleanups
- assuming they'll be run here (below). */
- back_to = make_cleanup (scan_macro_cleanup, 0);
-
scoped_restore restore_yydebug = make_scoped_restore (&yydebug,
parser_debug);
/* Initialize some state used by the lexer. */
last_was_structop = false;
saw_name_at_eof = 0;
+ paren_depth = 0;
token_fifo.clear ();
popping = 0;
name_obstack.clear ();
- result = yyparse ();
- do_cleanups (back_to);
-
- return result;
+ return yyparse ();
}
#ifdef YYBISON
break;
case NSSTRING:
- case VARIABLE:
- parser_fprintf (file, "sval<%s>", copy_name (value.sval));
+ case DOLLAR_VARIABLE:
+ parser_fprintf (file, "sval<%s>", copy_name (value.sval).c_str ());
break;
case TYPENAME:
parser_fprintf (file, "tsym<type=%s, name=%s>",
TYPE_SAFE_NAME (value.tsym.type),
- copy_name (value.tsym.stoken));
+ copy_name (value.tsym.stoken).c_str ());
break;
case NAME:
case NAME_OR_INT:
case BLOCKNAME:
parser_fprintf (file, "ssym<name=%s, sym=%s, field_of_this=%d>",
- copy_name (value.ssym.stoken),
+ copy_name (value.ssym.stoken).c_str (),
(value.ssym.sym.symbol == NULL
- ? "(null)" : SYMBOL_PRINT_NAME (value.ssym.sym.symbol)),
+ ? "(null)" : value.ssym.sym.symbol->print_name ()),
value.ssym.is_a_field_of_this);
break;
static void
yyerror (const char *msg)
{
- if (prev_lexptr)
- lexptr = prev_lexptr;
+ if (pstate->prev_lexptr)
+ pstate->lexptr = pstate->prev_lexptr;
- error (_("A %s in expression, near `%s'."), msg, lexptr);
+ error (_("A %s in expression, near `%s'."), msg, pstate->lexptr);
}
projects / deliverable / binutils-gdb.git / blobdiff