Struct gitql_ast::environment::Environment

pub struct Environment {
    pub schema: Schema,
    pub globals: HashMap<String, Value>,
    pub globals_types: HashMap<String, DataType>,
    pub scopes: HashMap<String, DataType>,
}

Fields

schema: Schema

Data schema information contains table, fields names and types

globals: HashMap<String, Value>

All Global Variables values that can life for this program session

globals_types: HashMap<String, DataType>

All Global Variables Types that can life for this program session

scopes: HashMap<String, DataType>

Local variables types in the current scope, later will be multi layer scopes

Implementations

impl Environment

pub fn new(schema: Schema) -> Self

Create new Environment instance with Data Schema

pub fn define(&mut self, str: String, data_type: DataType)

Define in the current scope

pub fn define_global(&mut self, str: String, data_type: DataType)

Define in the global scope

pub fn contains(&self, str: &String) -> bool

Returns true if local or global scopes has contains field

pub fn resolve_type(&self, str: &String) -> Option<&DataType>

Resolve Global or Local type using symbol name

pub fn clear_session(&mut self)

Clear all locals scopes and only save globals