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@ -41,11 +41,9 @@ extern "C" {
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/* For functions which return Method_t */
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/* For functions which return Method_t */
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#define METHOD_NULL (Method_t)0
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#define METHOD_NULL (Method_t)0
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/* Boolean typedefs */
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/* Boolean typedefs */
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/*
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/* Method descriptor returned by introspective Object methods.
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** Method descriptor returned by introspective Object methods.
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This is really just the first part of the more complete objc_method
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** This is really just the first part of the more complete objc_method
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structure defined below and used internally by the runtime. */
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** structure defined below and used internally by the runtime.
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*/
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struct objc_method_description
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struct objc_method_description
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{
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{
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SEL name; /* this is a selector, not a string */
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SEL name; /* this is a selector, not a string */
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@ -85,36 +83,32 @@ struct objc_method_description
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#define _C_COMPLEX 'j'
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#define _C_COMPLEX 'j'
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/*
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/* Error handling
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** Error handling
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**
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Call objc_error() or objc_verror() to record an error; this error
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** Call objc_error() or objc_verror() to record an error; this error
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routine will generally exit the program but not necessarily if the
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** routine will generally exit the program but not necessarily if the
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user has installed his own error handler.
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** user has installed his own error handler.
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**
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Call objc_set_error_handler to assign your own function for
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** Call objc_set_error_handler to assign your own function for
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handling errors. The function should return YES if it is ok
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** handling errors. The function should return YES if it is ok
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to continue execution, or return NO or just abort if the
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** to continue execution, or return NO or just abort if the
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program should be stopped. The default error handler is just to
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** program should be stopped. The default error handler is just to
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print a message on stderr.
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** print a message on stderr.
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**
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The error handler function should be of type objc_error_handler
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** The error handler function should be of type objc_error_handler
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The first parameter is an object instance of relevance.
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** The first parameter is an object instance of relevance.
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The second parameter is an error code.
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** The second parameter is an error code.
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The third parameter is a format string in the printf style.
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** The third parameter is a format string in the printf style.
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The fourth parameter is a variable list of arguments. */
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** The fourth parameter is a variable list of arguments.
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*/
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extern void objc_error(id object, int code, const char* fmt, ...);
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extern void objc_error(id object, int code, const char* fmt, ...);
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extern void objc_verror(id object, int code, const char* fmt, va_list ap);
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extern void objc_verror(id object, int code, const char* fmt, va_list ap);
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typedef BOOL (*objc_error_handler)(id, int code, const char *fmt, va_list ap);
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typedef BOOL (*objc_error_handler)(id, int code, const char *fmt, va_list ap);
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extern objc_error_handler objc_set_error_handler(objc_error_handler func);
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extern objc_error_handler objc_set_error_handler(objc_error_handler func);
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/*
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/* Error codes
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** Error codes
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These are used by the runtime library, and your
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** These are used by the runtime library, and your
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error handling may use them to determine if the error is
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** error handling may use them to determine if the error is
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hard or soft thus whether execution can continue or abort. */
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** hard or soft thus whether execution can continue or abort.
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*/
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#define OBJC_ERR_UNKNOWN 0 /* Generic error */
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#define OBJC_ERR_UNKNOWN 0 /* Generic error */
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#define OBJC_ERR_OBJC_VERSION 1 /* Incorrect runtime version */
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#define OBJC_ERR_OBJC_VERSION 1 /* Incorrect runtime version */
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@ -139,10 +133,8 @@ extern objc_error_handler objc_set_error_handler(objc_error_handler func);
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#define OBJC_ERR_BAD_STATE 40 /* Bad thread state */
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#define OBJC_ERR_BAD_STATE 40 /* Bad thread state */
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/*
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/* Set this variable nonzero to print a line describing each
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** Set this variable nonzero to print a line describing each
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message that is sent. (this is currently disabled) */
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** message that is sent. (this is currently disabled)
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*/
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extern BOOL objc_trace;
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extern BOOL objc_trace;
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@ -160,14 +152,12 @@ struct objc_static_instances
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#endif
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#endif
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};
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};
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/*
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/* Whereas a Module (defined further down) is the root (typically) of a file,
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** Whereas a Module (defined further down) is the root (typically) of a file,
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a Symtab is the root of the class and category definitions within the
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** a Symtab is the root of the class and category definitions within the
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module.
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** module.
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**
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A Symtab contains a variable length array of pointers to classes and
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** A Symtab contains a variable length array of pointers to classes and
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categories defined in the module. */
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** categories defined in the module.
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*/
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typedef struct objc_symtab {
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typedef struct objc_symtab {
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unsigned long sel_ref_cnt; /* Unknown. */
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unsigned long sel_ref_cnt; /* Unknown. */
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SEL refs; /* Unknown. */
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SEL refs; /* Unknown. */
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nicola
19 years ago