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glsl: Fix (and validate) comment above glsl_type::name.

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The comment above glsl_type::name claimed that it could sometimes be
NULL.  This was wrong--it is never NULL.  Many error handling paths
would segfault if it were.  (Anonymous structs are assigned names like
"#anon_struct_0001"--see the ast_struct_specifier constructor in
glsl_parser_extras.cpp.)

Fix the comment and add assertions to validate that it really is never
NULL.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Paul Berry 2013-04-09 20:36:30 -07:00
parent 5b2855bfe7
commit 5b0bd8ece8
2 changed files with 5 additions and 2 deletions
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4
src/glsl/glsl_types.cpp
View file

@ -57,6 +57,7 @@ glsl_type::glsl_type(GLenum gl_type,
length(0)
{
init_ralloc_type_ctx();
assert(name != NULL);
this->name = ralloc_strdup(this->mem_ctx, name);
/* Neither dimension is zero or both dimensions are zero.
*/
@ -75,6 +76,7 @@ glsl_type::glsl_type(GLenum gl_type,
length(0)
{
init_ralloc_type_ctx();
assert(name != NULL);
this->name = ralloc_strdup(this->mem_ctx, name);
memset(& fields, 0, sizeof(fields));
}
@ -91,6 +93,7 @@ glsl_type::glsl_type(const glsl_struct_field *fields, unsigned num_fields,
unsigned int i;
init_ralloc_type_ctx();
assert(name != NULL);
this->name = ralloc_strdup(this->mem_ctx, name);
this->fields.structure = ralloc_array(this->mem_ctx,
glsl_struct_field, length);
@ -114,6 +117,7 @@ glsl_type::glsl_type(const glsl_struct_field *fields, unsigned num_fields,
unsigned int i;
init_ralloc_type_ctx();
assert(name != NULL);
this->name = ralloc_strdup(this->mem_ctx, name);
this->fields.structure = ralloc_array(this->mem_ctx,
glsl_struct_field, length);

3
src/glsl/glsl_types.h
View file

@ -132,8 +132,7 @@ struct glsl_type {
/**
* Name of the data type
*
* This may be \c NULL for anonymous structures, for arrays, or for
* function types.
* Will never be \c NULL.
*/
const char *name;