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widl: Support some more complicated conformance / variance expressions.

This commit is contained in:
Robert Shearman 2006-01-24 11:09:03 +01:00 committed by Alexandre Julliard
parent 368da7dcc2
commit 793bc8de69
1 changed files with 52 additions and 5 deletions
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57
tools/widl/typegen.c
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@ -218,9 +218,56 @@ void write_procformatstring(FILE *file, type_t *iface)
/* FIXME: only works for top-level variables at the moment */ /* FIXME: only works for top-level variables at the moment */
static size_t write_conf_or_var_desc(FILE *file, const func_t *func, const expr_t *expr) static size_t write_conf_or_var_desc(FILE *file, const func_t *func, const expr_t *expr)
{ {
unsigned char operator_type = 0;
const char *operator_string = "no operators";
const expr_t *subexpr = expr;
if (!file) return 4; /* optimisation for sizing pass */ if (!file) return 4; /* optimisation for sizing pass */
if (expr->type == EXPR_IDENTIFIER) switch (subexpr->type)
{
case EXPR_PPTR:
subexpr = subexpr->ref;
operator_type = RPC_FC_DEREFERENCE;
operator_string = "FC_DEREFERENCE";
break;
case EXPR_DIV:
if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 2))
{
subexpr = subexpr->ref;
operator_type = RPC_FC_DIV_2;
operator_string = "FC_DIV_2";
}
break;
case EXPR_MUL:
if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 2))
{
subexpr = subexpr->ref;
operator_type = RPC_FC_MULT_2;
operator_string = "FC_MULT_2";
}
break;
case EXPR_SUB:
if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 1))
{
subexpr = subexpr->ref;
operator_type = RPC_FC_SUB_1;
operator_string = "FC_SUB_1";
}
break;
case EXPR_ADD:
if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 1))
{
subexpr = subexpr->ref;
operator_type = RPC_FC_ADD_1;
operator_string = "FC_ADD_1";
}
break;
default:
break;
}
if (subexpr->type == EXPR_IDENTIFIER)
{ {
if (func) if (func)
{ {
@ -233,7 +280,7 @@ static size_t write_conf_or_var_desc(FILE *file, const func_t *func, const expr_
while (NEXT_LINK(var)) var = NEXT_LINK(var); while (NEXT_LINK(var)) var = NEXT_LINK(var);
for (stack_offset = 0; var; stack_offset += sizeof(void *), var = PREV_LINK(var)) for (stack_offset = 0; var; stack_offset += sizeof(void *), var = PREV_LINK(var))
{ {
if (!strcmp(var->name, expr->u.sval)) if (!strcmp(var->name, subexpr->u.sval))
{ {
conformance_type = var->type; conformance_type = var->type;
break; break;
@ -241,7 +288,7 @@ static size_t write_conf_or_var_desc(FILE *file, const func_t *func, const expr_
} }
if (!conformance_type) if (!conformance_type)
error("write_conf_or_var_desc: couldn't find variable %s\n", error("write_conf_or_var_desc: couldn't find variable %s\n",
expr->u.sval); subexpr->u.sval);
while (type_has_ref(conformance_type)) while (type_has_ref(conformance_type))
conformance_type = conformance_type->ref; conformance_type = conformance_type->ref;
@ -283,14 +330,14 @@ static size_t write_conf_or_var_desc(FILE *file, const func_t *func, const expr_
print_file(file, 2, "0x%x, /* Corr desc: parameter, %s */\n", print_file(file, 2, "0x%x, /* Corr desc: parameter, %s */\n",
RPC_FC_TOP_LEVEL_CONFORMANCE | param_type, RPC_FC_TOP_LEVEL_CONFORMANCE | param_type,
param_type_string); param_type_string);
print_file(file, 2, "0x0, /* no operators */\n"); print_file(file, 2, "0x%x, /* %s */\n", operator_type, operator_string);
print_file(file, 2, "0x%x, /* x86 stack size / offset = %d */\n", stack_offset, stack_offset); print_file(file, 2, "0x%x, /* x86 stack size / offset = %d */\n", stack_offset, stack_offset);
} }
else else
error("write_conf_or_var_desc: not supported for non-functions yet\n"); error("write_conf_or_var_desc: not supported for non-functions yet\n");
} }
else else
error("write_conf_or_var_desc: expression type %d\n", expr->type); error("write_conf_or_var_desc: expression type %d\n", subexpr->type);
return 4; return 4;
} }