import { JsonQLExpr, JsonQLFrom } from "@mwater/jsonql";
import Schema from "./Schema";
import { BuildEnumsetExpr, CaseExpr, Column, Expr, FieldExpr, LegacyComparisonExpr, LegacyLogicalExpr, OpExpr, ScalarExpr, ScoreExpr, SubqueryExpr, VariableExpr } from "./types";
/** Compiles expressions to JsonQL. Assumes that geometry is in Webmercator (3857) */
export default class ExprCompiler {
    schema: Schema;
    /** Optional function to override compileExpr behaviour */
    overrideCompileExpr?: (options: {
        expr: Expr;
        tableAlias: string;
    }) => {
        jsonql: JsonQLExpr;
    } | null;
    /**
     * Create a new expression compiler
     * @param schema
     */
    constructor(schema: Schema);
    /** Set override compileExpr function to selectively override compileExpr behaviour */
    setOverrideCompileExpr(overrideCompileExpr: (options: {
        expr: Expr;
        tableAlias: string;
    }) => {
        jsonql: JsonQLExpr;
    } | null): void;
    /** Compile an expression. Pass expr and tableAlias. */
    compileExpr(options: {
        expr: Expr;
        tableAlias: string;
    }): JsonQLExpr;
    /** Compile a field expressions */
    compileFieldExpr(options: {
        expr: FieldExpr;
        tableAlias: string;
    }): JsonQLExpr;
    compileScalarExpr(options: {
        expr: ScalarExpr;
        tableAlias: string;
    }): JsonQLExpr;
    /** Compile a join into an on or where clause
     *  fromTableID: column definition
     *  joinColumn: column definition
     *  fromAlias: alias of from table
     *  toAlias: alias of to table
     */
    compileJoin(fromTableId: string, joinColumn: Column, fromAlias: string, toAlias: string): any;
    compileOpExpr(options: {
        expr: OpExpr;
        tableAlias: string;
    }): JsonQLExpr;
    compileCaseExpr(options: {
        expr: CaseExpr;
        tableAlias: string;
    }): JsonQLExpr;
    compileScoreExpr(options: {
        expr: ScoreExpr;
        tableAlias: string;
    }): JsonQLExpr;
    compileBuildEnumsetExpr(options: {
        expr: BuildEnumsetExpr;
        tableAlias: string;
    }): JsonQLExpr;
    compileSubqueryExpr(options: {
        expr: SubqueryExpr;
        tableAlias: string;
    }): JsonQLExpr;
    compileComparisonExpr(options: {
        expr: LegacyComparisonExpr;
        tableAlias: string;
    }): JsonQLExpr;
    compileLogicalExpr(options: {
        expr: LegacyLogicalExpr;
        tableAlias: string;
    }): JsonQLExpr;
    compileColumnRef(column: any, tableAlias: string): JsonQLExpr;
    compileTable(tableId: string, alias: string): JsonQLFrom;
    compileVariableExpr(options: {
        expr: VariableExpr;
        tableAlias: string;
    }): JsonQLExpr;
}