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#ifndef EDITOR_PARSER_H
#define EDITOR_PARSER_H
typedef enum syntax_node_type syntax_node_type;
enum syntax_node_type
{
SyntaxNodeLiteral,
SyntaxNodeIdentifier,
SyntaxNodeBinary,
SyntaxNodeAssignment,
SyntaxNodeReturn,
SyntaxNodeFunction,
SyntaxNodeUnwanted,
};
typedef struct syntax_node syntax_node;
struct syntax_node
{
syntax_node *First;
syntax_node *Last;
syntax_node *Parent;
syntax_node *Next;
token *Token;
syntax_node_type Type;
};
typedef struct concrete_syntax_tree concrete_syntax_tree;
struct concrete_syntax_tree
{
syntax_node *Root;
syntax_node *Current;
};
// TODO(nasr): implement this later together with file handling
read_only global_variable
syntax_node nil_syntax_node =
{
.First = &nil_syntax_node,
.Last = &nil_syntax_node,
.Parent = &nil_syntax_node,
.Next = &nil_syntax_node,
.Token = &nil_token,
};
read_only global_variable
concrete_syntax_tree nil_concrete_syntax_tree =
{
.Root = &nil_syntax_node,
.Current = &nil_syntax_node,
};
#define PeekForward(Node, Type, NilNode) \
for(; (Node) && (Node) != &(NilNode); (Node) = (Node)->Next) \
if((Node)->Token->Type == (Type)) \
break;
#endif // EDITOR_PARSER_H
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