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allow modification on retrieved code_props.

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The logic to compute the %printer or %destructor to used (i.e., a
code_props) is implemented twice: one, of course, in
symbol_code_props_get, and another time in symbol_check_defined to
record the fact that a code_props is used (so that we can reported
unused ones).  Let the former use the latter.

I would probably use "mutable" in C++ and keep these guys const,
but this is C.  And casting away constness triggers warnings.

* src/scan-code.h, src/scan-code.l (code_props_none): Is not const.
* src/symtab.h, src/symtab.c (symbol_code_props_get): The symbol
is not const.
(symbol_check_defined): Use it.
This commit is contained in:
Akim Demaille
2012-07-22 17:46:34 +02:00
parent a943967010
commit 70946cff5e
4 changed files with 7 additions and 15 deletions
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2
src/scan-code.h
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@@ -103,7 +103,7 @@ void code_props_none_init (code_props *self);
}
/** Initialized by \c CODE_PROPS_NONE_INIT with no further modification. */
extern code_props const code_props_none;
extern code_props code_props_none;
/**
* \pre

2
src/scan-code.l
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@@ -890,7 +890,7 @@ code_props_none_init (code_props *self)
*self = code_props_none;
}
code_props const code_props_none = CODE_PROPS_NONE_INIT;
code_props code_props_none = CODE_PROPS_NONE_INIT;
void
code_props_plain_init (code_props *self, char const *code,

15
src/symtab.c
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@@ -274,9 +274,8 @@ semantic_type_code_props_set (semantic_type *type,
| Get the computed %destructor or %printer for SYM. |
`---------------------------------------------------*/
code_props const *
symbol_code_props_get (symbol const *sym,
code_props_type kind)
code_props *
symbol_code_props_get (symbol *sym, code_props_type kind)
{
/* Per-symbol code props. */
if (sym->props[kind].code)
@@ -285,7 +284,7 @@ symbol_code_props_get (symbol const *sym,
/* Per-type code props. */
if (sym->type_name)
{
code_props const *code =
code_props *code =
&semantic_type_get (sym->type_name, NULL)->props[kind];
if (code->code)
return code;
@@ -421,13 +420,7 @@ symbol_check_defined (symbol *sym)
}
for (int i = 0; i < 2; ++i)
if (sym->props[i].kind == CODE_PROPS_NONE && sym->type_name)
{
semantic_type *sem_type = semantic_type_get (sym->type_name, NULL);
if (sem_type
&& sem_type->props[i].kind != CODE_PROPS_NONE)
sem_type->props[i].is_used = true;
}
symbol_code_props_get (sym, i)->is_used = true;
/* Set the semantic type status associated to the current symbol to
'declared' so that we could check semantic types unnecessary uses. */

3
src/symtab.h
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@@ -181,8 +181,7 @@ void symbol_code_props_set (symbol *sym, code_props_type kind,
/** Get the computed \c \%destructor or \c %printer for \c sym, which was
initialized with \c code_props_none_init if there's no \c \%destructor or
\c %printer. */
code_props const *symbol_code_props_get (symbol const *sym,
code_props_type kind);
code_props *symbol_code_props_get (symbol *sym, code_props_type kind);
/** Set the \c precedence associated with \c sym.