AST generation
[babeltrace.git] / formats / ctf / metadata / ctf-ast.h
index 74e1ecb4b2fd37a97fcb47f12e1f153b9e11f76f..7dcf9f966bb5a9366eb4e15690e52e951b8beca5 100644 (file)
@@ -25,6 +25,7 @@ enum node_type {
        NODE_TRACE,
 
        NODE_CTF_EXPRESSION,
+       NODE_UNARY_EXPRESSION,
 
        NODE_TYPEDEF,
        NODE_TYPEALIAS_TARGET,
@@ -32,7 +33,6 @@ enum node_type {
        NODE_TYPEALIAS,
 
        NODE_TYPE_SPECIFIER,
-       NODE_DECLARATION_SPECIFIER,
        NODE_POINTER,
        NODE_TYPE_DECLARATOR,
 
@@ -49,6 +49,9 @@ enum node_type {
 };
 
 struct ctf_node {
+       /*
+        * Parent node is only set on demand by specific visitor.
+        */
        struct ctf_node *parent;
        struct cds_list_head siblings;
        struct cds_list_head gc;
@@ -67,57 +70,64 @@ struct ctf_node {
                } root;
                struct {
                        /*
-                        * Children nodes are ctf_expression, typedef or
-                        * typealias.
+                        * Children nodes are ctf_expression, typedef,
+                        * typealias and declaration specifiers.
                         */
-                       struct cds_list_head _typedef;
-                       struct cds_list_head typealias;
-                       struct cds_list_head ctf_expression;
-                       struct cds_list_head declaration_specifier;
+                       struct cds_list_head declaration_list;
                } event;
                struct {
                        /*
-                        * Children nodes are ctf_expression, typedef or
-                        * typealias.
+                        * Children nodes are ctf_expression, typedef,
+                        * typealias and declaration specifiers.
                         */
-                       struct cds_list_head _typedef;
-                       struct cds_list_head typealias;
-                       struct cds_list_head ctf_expression;
-                       struct cds_list_head declaration_specifier;
+                       struct cds_list_head declaration_list;
                } stream;
                struct {
                        /*
-                        * Children nodes are ctf_expression, typedef or
-                        * typealias.
+                        * Children nodes are ctf_expression, typedef,
+                        * typealias and declaration specifiers.
                         */
-                       struct cds_list_head _typedef;
-                       struct cds_list_head typealias;
-                       struct cds_list_head ctf_expression;
-                       struct cds_list_head declaration_specifier;
+                       struct cds_list_head declaration_list;
                } trace;
                struct {
-                       char *left_id;
+                       struct ctf_node *left;  /* Should be string */
+                       struct ctf_node *right; /* Unary exp. or type */
+               } ctf_expression;
+               struct {
                        enum {
-                               EXP_UNKNOWN = 0,
-                               EXP_ID,
-                               EXP_TYPE,
+                               UNARY_UNKNOWN = 0,
+                               UNARY_STRING,
+                               UNARY_SIGNED_CONSTANT,
+                               UNARY_UNSIGNED_CONSTANT,
+                               UNARY_SBRAC,
                        } type;
                        union {
-                               char *id;
-                               struct ctf_node *type;
-                       } right;
-               } ctf_expression;
+                               /*
+                                * string for identifier, id_type, keywords,
+                                * string literals and character constants.
+                                */
+                               char *string;
+                               uint64_t unsigned_constant;
+                               int64_t signed_constant;
+                               struct ctf_node *sbrac_exp;
+                       } u;
+                       enum {
+                               UNARY_LINK_UNKNOWN = 0,
+                               UNARY_DOTLINK,
+                               UNARY_ARROWLINK,
+                       } link;
+               } unary_expression;
                struct {
-                       struct ctf_node *declaration_specifier;
+                       struct cds_list_head declaration_specifier;
                        struct cds_list_head type_declarators;
                } _typedef;
                /* new type is "alias", existing type "target" */
                struct {
-                       struct ctf_node *declaration_specifier;
+                       struct cds_list_head declaration_specifier;
                        struct cds_list_head type_declarators;
                } typealias_target;
                struct {
-                       struct ctf_node *declaration_specifier;
+                       struct cds_list_head declaration_specifier;
                        struct cds_list_head type_declarators;
                } typealias_alias;
                struct {
@@ -138,30 +148,13 @@ struct ctf_node {
                                TYPESPEC_UNSIGNED,
                                TYPESPEC_BOOL,
                                TYPESPEC_COMPLEX,
+                               TYPESPEC_CONST,
                                TYPESPEC_ID_TYPE,
-
-                               TYPESPEC_FLOATING_POINT,
-                               TYPESPEC_INTEGER,
-                               TYPESPEC_STRING,
-                               TYPESPEC_ENUM,
-                               TYPESPEC_VARIANT,
-                               TYPESPEC_STRUCT,
                        } type;
-                       union {
-                               struct ctf_node *floating_point;
-                               struct ctf_node *integer;
-                               struct ctf_node *string;
-                               struct ctf_node *_enum;
-                               struct ctf_node *variant;
-                               struct ctf_node *_struct;
-                       } u;
+                       const char *id_type;
                } type_specifier;
                struct {
-                       /* drop "const" specifier */
-                       /* Children nodes are type_specifiers */
-                       struct cds_list_head type_specifiers;
-               } declaration_specifier;
-               struct {
+                       unsigned int const_qualifier;
                } pointer;
                struct {
                        struct cds_list_head pointers;
@@ -175,19 +168,13 @@ struct ctf_node {
                                struct {
                                        /* typedec has no pointer list */
                                        struct ctf_node *type_declarator;
-                                       struct {
-                                               enum {
-                                                       TYPEDEC_TYPE_UNKNOWN = 0,
-                                                       TYPEDEC_TYPE_VALUE, /* must be > 0 */
-                                                       TYPEDEC_TYPE_TYPE,
-                                               } type;
-                                               union {
-                                                       uint64_t value;
-                                                       struct ctf_node *declaration_specifier;
-                                               } u;
-                                       } length;
+                                       /* value or first node of declaration specifier list */
+                                       struct ctf_node *length;
+                                       /* for abstract type declarator */
+                                       unsigned int abstract_array;
                                } nested;
                        } u;
+                       struct ctf_node *bitfield_len;
                } type_declarator;
                struct {
                        /* Children nodes are ctf_expression. */
@@ -203,43 +190,29 @@ struct ctf_node {
                } string;
                struct {
                        char *id;
-                       union {         /* inclusive start/end of range */
-                               struct {
-                                       int64_t start, end;
-                               } _signed;
-                               struct {
-                                       uint64_t start, end;
-                               } _unsigned;
-                       } u;
+                       /* first node of range list or single node */
+                       struct ctf_node *values;
                } enumerator;
                struct {
                        char *enum_id;
-                       struct {
-                               enum {
-                                       ENUM_TYPE_UNKNOWN = 0,
-                                       ENUM_TYPE_VALUE, /* must be > 0 */
-                                       ENUM_TYPE_TYPE,
-                               } type;
-                               union {
-                                       uint64_t value;
-                                       struct ctf_node *declaration_specifier;
-                               } u;
-                       } container_type;
+                       /* NULL, value or declaration specifier */
+                       struct ctf_node *container_type;
                        struct cds_list_head enumerator_list;
                } _enum;
                struct {
-                       struct ctf_node *declaration_specifier;
+                       struct cds_list_head declaration_specifier;
                        struct cds_list_head type_declarators;
                } struct_or_variant_declaration;
                struct {
-                       struct cds_list_head _typedef;
-                       struct cds_list_head typealias;
+                       /* list of typedef, typealias and declarations */
                        struct cds_list_head declaration_list;
+                       char *name;
+                       char *choice;
                } variant;
                struct {
-                       struct cds_list_head _typedef;
-                       struct cds_list_head typealias;
+                       /* list of typedef, typealias and declarations */
                        struct cds_list_head declaration_list;
+                       char *name;
                } _struct;
        } u;
 };
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