node_types.h

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#pragma once
#include "defs.h"
namespace paula
{
    // node types
 
    constexpr INT
 
        NODE_UNDEFINED          = 0xff000000,
 
        // tree types
 
        NODE_SUBTREE            = 0x01000000, // parser decides what kind or tree is it
        NODE_EXPR               = 0x02000000,
        NODE_STATEMENT          = 0x03000000,
 
        NODE_STACK              = 0x05000000,
        NODE_MAP                = 0x06000000, // like dictionary. list of KV nodes
        NODE_KV                 = 0x07000000, // key-value pairs for map: text key that has a link to data
 
        // data types
 
        NODE_ANY_DATA           = 0x20000000,
 
        NODE_NAME               = 0x21000000, // variable, constant, or function name
        NODE_INTEGER            = 0x22000000, // 32-bit, e.g. 123
        NODE_DOUBLE             = 0x23000000, // 64-bit, e.g. 1.23
        NODE_TEXT               = 0x24000000, // string/const char*, e.g. "abc d"
        NODE_BOOL               = 0x25000000, // true = 1, false = 0
 
        NODE_VOID               = 0x2f000000,
 
        // controls tokens
 
        NODE_OPERATOR           = 0x31000000,
 
        // masks
        TAG_MASK                = 0xff000000,
        SIZE_MASK               = 0x00ffffff;
}