create-query-language/ASTUtils/types.d.ts

A flexible TypeScript library for parsing and building query languages with support for lexical analysis, AST generation, and token stream processing

import type { LogicalOperatorValues, ComparatorValues } from '../logic/constants';
import type { Position } from '../logic/types';
import { AstTypes } from './logic/constants';
export interface ASTNode {
    type: string;
    position: Position;
}
export interface QueryExpression extends ASTNode {
    type: typeof AstTypes.Query;
    expression: Expression;
}
export interface BooleanExpression extends ASTNode {
    type: typeof AstTypes.Boolean;
    operator: LogicalOperatorNode;
    left: Expression;
    right: Expression;
}
export interface KeyNode extends ASTNode {
    type: typeof AstTypes.Key;
    value: string;
}
export interface ComparatorNode extends ASTNode {
    type: typeof AstTypes.Comparator;
    value: ComparatorValues;
}
export interface LogicalOperatorNode extends ASTNode {
    type: typeof AstTypes.LogicalOperator;
    value: LogicalOperatorValues;
}
export interface ValueNode extends ASTNode {
    type: typeof AstTypes.Value;
    value: string;
}
export interface ConditionExpression extends ASTNode {
    type: typeof AstTypes.Condition;
    key: KeyNode;
    comparator: ComparatorNode;
    value: ValueNode;
    spacesAfterKey: number;
    spacesAfterComparator: number;
    spacesAfterValue: number;
}
export interface GroupExpression extends ASTNode {
    type: typeof AstTypes.Group;
    expression: Expression;
}
export interface NotExpression extends ASTNode {
    type: typeof AstTypes.Not;
    expression: Expression;
}
export type Expression = QueryExpression | BooleanExpression | ConditionExpression | GroupExpression | NotExpression;