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widl: Consolidate top-level parameter conformance/variance expression writing into a separate function. 

Descend through as many pointer types as necessary to find the
fundamental type and determine whether it needs a top-level parameter
conformance/variance expression to be written.

Add support for writing top-level parameter conformance/variance
expressions for non-encapsulated unions.
This commit is contained in:
Rob Shearman 2008-07-03 09:11:00 +01:00 committed by Alexandre Julliard
parent 28c7b230ed
commit d60dc3f88b
1 changed files with 63 additions and 52 deletions
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115
tools/widl/typegen.c
View File

@ -2770,7 +2770,7 @@ void print_phase_basetype(FILE *file, int indent, enum remoting_phase phase,
/* returns whether the MaxCount, Offset or ActualCount members need to be
* filled in for the specified phase */
static inline int is_size_needed_for_phase(enum remoting_phase phase)
static inline int is_conformance_needed_for_phase(enum remoting_phase phase)
{
return (phase != PHASE_UNMARSHAL);
}
@ -2793,6 +2793,67 @@ expr_t *get_size_is_expr(const type_t *t, const char *name)
return x;
}
static void write_parameter_conf_or_var_exprs(FILE *file, int indent,
enum remoting_phase phase,
const var_t *var)
{
const type_t *type = var->type;
/* get fundamental type for the argument */
for (;;)
{
if (is_attr(type->attrs, ATTR_WIREMARSHAL))
break;
else if (is_attr(type->attrs, ATTR_CONTEXTHANDLE))
break;
else if (is_array(type) || is_string_type(var->attrs, type))
{
if (is_conformance_needed_for_phase(phase))
{
if (type->size_is)
{
print_file(file, indent, "_StubMsg.MaxCount = (unsigned long)");
write_expr(file, type->size_is, 1, 1, NULL, NULL);
fprintf(file, ";\n\n");
}
if (type->length_is)
{
print_file(file, indent, "_StubMsg.Offset = (unsigned long)0;\n"); /* FIXME */
print_file(file, indent, "_StubMsg.ActualCount = (unsigned long)");
write_expr(file, type->length_is, 1, 1, NULL, NULL);
fprintf(file, ";\n\n");
}
}
break;
}
else if (type->type == RPC_FC_NON_ENCAPSULATED_UNION)
{
if (is_conformance_needed_for_phase(phase))
{
print_file(file, indent, "_StubMsg.MaxCount = (unsigned long)");
write_expr(file, get_attrp(var->attrs, ATTR_SWITCHIS), 1, 1, NULL, NULL);
fprintf(file, ";\n\n");
}
break;
}
else if (type->type == RPC_FC_IP)
{
expr_t *iid;
if (is_conformance_needed_for_phase(phase) && (iid = get_attrp( var->attrs, ATTR_IIDIS )))
{
print_file( file, indent, "_StubMsg.MaxCount = (unsigned long) " );
write_expr( file, iid, 1, 1, NULL, NULL );
fprintf( file, ";\n\n" );
}
break;
}
else if (is_ptr(type))
type = type->ref;
else
break;
}
}
static void write_remoting_arg(FILE *file, int indent, const func_t *func,
enum pass pass, enum remoting_phase phase,
const var_t *var)
@ -2824,6 +2885,7 @@ static void write_remoting_arg(FILE *file, int indent, const func_t *func,
break;
}
write_parameter_conf_or_var_exprs(file, indent, phase, var);
rtype = type->type;
if (is_context_handle(type))
@ -2879,13 +2941,6 @@ static void write_remoting_arg(FILE *file, int indent, const func_t *func,
print_phase_function(file, indent, "NonConformantString", phase, var, start_offset);
else
{
if (type->size_is && is_size_needed_for_phase(phase))
{
print_file(file, indent, "_StubMsg.MaxCount = (unsigned long)");
write_expr(file, type->size_is, 1, 1, NULL, NULL);
fprintf(file, ";\n");
}
if (phase == PHASE_FREE || pass == PASS_RETURN || pointer_type == RPC_FC_UP)
print_phase_function(file, indent, "Pointer", phase, var,
start_offset - (type->size_is ? 4 : 2));
@ -2908,43 +2963,14 @@ static void write_remoting_arg(FILE *file, int indent, const func_t *func,
if (tc == RPC_FC_SMVARRAY || tc == RPC_FC_LGVARRAY)
{
if (is_size_needed_for_phase(phase))
{
print_file(file, indent, "_StubMsg.Offset = (unsigned long)0;\n"); /* FIXME */
print_file(file, indent, "_StubMsg.ActualCount = (unsigned long)");
write_expr(file, type->length_is, 1, 1, NULL, NULL);
fprintf(file, ";\n\n");
}
array_type = "VaryingArray";
}
else if (tc == RPC_FC_CARRAY)
{
if (is_size_needed_for_phase(phase))
{
print_file(file, indent, "_StubMsg.MaxCount = (unsigned long)");
write_expr(file, type->size_is, 1, 1, NULL, NULL);
fprintf(file, ";\n\n");
}
array_type = "ConformantArray";
}
else if (tc == RPC_FC_CVARRAY || tc == RPC_FC_BOGUS_ARRAY)
{
if (is_size_needed_for_phase(phase))
{
if (type->size_is)
{
print_file(file, indent, "_StubMsg.MaxCount = (unsigned long)");
write_expr(file, type->size_is, 1, 1, NULL, NULL);
fprintf(file, ";\n");
}
if (type->length_is)
{
print_file(file, indent, "_StubMsg.Offset = (unsigned long)0;\n"); /* FIXME */
print_file(file, indent, "_StubMsg.ActualCount = (unsigned long)");
write_expr(file, type->length_is, 1, 1, NULL, NULL);
fprintf(file, ";\n\n");
}
}
array_type = (tc == RPC_FC_BOGUS_ARRAY
? "ComplexArray"
: "ConformantVaryingArray");
@ -3029,21 +3055,6 @@ static void write_remoting_arg(FILE *file, int indent, const func_t *func,
}
else
{
expr_t *iid;
expr_t *sx = get_size_is_expr(type, var->name);
if ((iid = get_attrp( var->attrs, ATTR_IIDIS )))
{
print_file( file, indent, "_StubMsg.MaxCount = (unsigned long) " );
write_expr( file, iid, 1, 1, NULL, NULL );
fprintf( file, ";\n\n" );
}
else if (sx)
{
print_file(file, indent, "_StubMsg.MaxCount = (unsigned long) ");
write_expr(file, sx, 1, 1, NULL, NULL);
fprintf(file, ";\n\n");
}
if (var->type->ref->type == RPC_FC_IP)
print_phase_function(file, indent, "InterfacePointer", phase, var, start_offset);
else