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#include <stdlib.h>
#include <assert.h>
typedef struct ExSpec ExSpec;
typedef struct ExUsesClause ExUsesClause;
typedef struct ExDefinition ExDefinition;
typedef struct ExNamespace ExNamespace;
typedef struct ExExtension ExExtension;
typedef struct ExRequest ExRequest;
typedef struct ExEvent ExEvent;
typedef struct ExError ExError;
typedef struct ExTypeDef ExTypeDef;
typedef struct ExType ExType;
typedef struct ExIdentifier ExIdentifier;
typedef struct ExField ExField;
typedef struct ExHashTable ExHashTable;
/* types and utilities */
#define EX_TRUE 1
#define EX_FALSE 0
typedef int exboolean;
typedef void * expointer;
typedef unsigned long exulong;
char * ex_strdup (const char *str);
void ex_parse_error (int line,
int pos,
const char *str);
void ex_fatal_error (int line,
int pos,
const char *str);
expointer ex_malloc (size_t n_bytes);
#define ex_new(type,n) (type*)(ex_malloc(sizeof(type)*n))
#define ex_assert(e) assert(e)
/* Hash Table */
ExHashTable *ex_hash_table_new (void);
void ex_hash_table_insert (ExHashTable *table,
const char *str,
expointer data);
expointer ex_hash_table_lookup (ExHashTable *table,
const char *str);
/* AST nodes */
struct ExSpec
{
ExHashTable * symbols;
ExUsesClause * uses_clauses;
ExDefinition * definitions;
};
struct ExUsesClause
{
char * name;
ExUsesClause * next;
};
typedef enum
{
EX_DEFINITION_NAMESPACE,
EX_DEFINITION_EXTENSION,
EX_DEFINITION_REQUEST,
EX_DEFINITION_TYPE_DEF,
EX_DEFINITION_ERROR,
EX_DEFINITION_EVENT
} ExDefinitionType;
struct ExDefinition
{
ExDefinitionType type;
union
{
ExNamespace *namespace;
ExExtension *extension;
ExRequest *request;
ExTypeDef *type_def;
ExError *error;
ExEvent *event;
} u;
ExDefinition *next;
};
struct ExField
{
ExType * type;
char * name;
exboolean is_created;
ExField * next;
};
struct ExNamespace
{
char *name;
ExDefinition *definitions;
};
struct ExExtension
{
char *name;
ExDefinition *definitions;
};
struct ExIdentifier
{
char *name;
ExIdentifier *next;
};
struct ExTypeDef
{
char *name;
ExType *type;
};
struct ExRequest
{
char *name;
int opcode;
ExField *parameters;
ExField *reply;
ExIdentifier *errors;
};
struct ExEvent
{
char *name;
ExField *fields;
};
typedef enum
{
EX_TYPE_CARD8,
EX_TYPE_CARD16,
EX_TYPE_CARD32,
EX_TYPE_CARD64,
EX_TYPE_INT8,
EX_TYPE_INT16,
EX_TYPE_INT32,
EX_TYPE_INT64,
EX_TYPE_BOOLEAN,
EX_TYPE_ENUM,
EX_TYPE_STRUCT,
EX_TYPE_BITS,
EX_TYPE_DERIVED_BITS,
EX_TYPE_MASKED_LIST,
EX_TYPE_IDENTIFIER,
EX_TYPE_UNION,
EX_TYPE_LIST,
EX_TYPE_XID
} ExTypeType;
struct ExType
{
ExTypeType type;
union {
struct
{
ExIdentifier * identifiers;
} _enum;
struct
{
ExField * fields;
} _struct;
struct
{
exulong mask;
ExIdentifier * fields;
} bits;
struct
{
char * derived_from_name;
exulong mask;
} derived_bits;
struct
{
ExField * fields;
} masked_list;
struct
{
char * name;
exboolean can_be_null;
} identifier;
struct
{
ExField * fields;
} _union;
struct
{
ExType * type;
} _list;
} u;
};
struct ExError
{
char *name;
};
/* constructors */
ExSpec * ex_spec_new (ExUsesClause *clauses,
ExDefinition *definitions);
ExUsesClause *ex_uses_clause_new (const char *name);
ExDefinition *ex_definition_new_namespace (ExNamespace *namespace);
ExDefinition *ex_definition_new_extension (ExExtension *extension);
ExDefinition *ex_definition_new_type_def (ExTypeDef *type_def);
ExDefinition *ex_definition_new_request (ExRequest *request);
ExDefinition *ex_definition_new_event (ExEvent *event);
ExDefinition *ex_definition_new_error (ExError *error);
ExNamespace * ex_namespace_new (const char *name,
ExDefinition *definitions);
ExExtension * ex_extension_new (const char *name,
ExDefinition *definitions);
ExTypeDef * ex_type_def_new (const char *name,
ExType *type);
ExType * ex_type_new_enum (ExIdentifier *identifiers);
ExType * ex_type_new_struct (ExField *fields);
ExType * ex_type_bits_new (unsigned long mask,
ExIdentifier *identifiers);
ExType * ex_type_derived_bits_new (const char *name,
unsigned long mask);
ExType * ex_type_masked_list_new (ExField *fields);
ExType * ex_type_identifier_new (const char *name,
exboolean can_be_none);
ExType * ex_type_union_new (ExField *fields);
ExType * ex_type_list_new (ExType *type);
ExType * ex_type_basic_new (ExTypeType type);
ExIdentifier *ex_identifier_new (const char *name);
ExError * ex_error_new (const char *name);
ExField * ex_field_new (ExType *type,
const char *name,
exboolean is_created);
ExRequest * ex_request_new (const char *name,
int opcode,
ExField *parameters,
ExField *reply,
ExIdentifier *errors);
ExEvent * ex_event_new (const char *name,
ExField *fields);
/* phases */
void ex_init_scanner (void);
ExSpec *ex_parse (const char *filename);
void ex_dump (ExSpec *spec);
void ex_weed (ExSpec *spec);
void ex_gather_symbols (ExSpec *spec);
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