Crate sql_type 

Crate for typing SQL statements.

use sql_type::{schema::parse_schemas, type_statement, TypeOptions,
    SQLDialect, SQLArguments, StatementType, Issues};
let schemas = "
    CREATE TABLE `events` (
      `id` bigint(20) NOT NULL,
      `user` int(11) NOT NULL,
      `message` text NOT NULL
    );";

let mut issues = Issues::new(schemas);

// Compute terse representation of the schemas
let schemas = parse_schemas(schemas,
    &mut issues,
    &TypeOptions::new().dialect(SQLDialect::MariaDB));
assert!(issues.is_ok());

let sql = "SELECT `id`, `user`, `message` FROM `events` WHERE `id` = ?";
let mut issues = Issues::new(sql);
let stmt = type_statement(&schemas, sql, &mut issues,
    &TypeOptions::new().dialect(SQLDialect::MariaDB).arguments(SQLArguments::QuestionMark));
assert!(issues.is_ok());

let stmt = match stmt {
    StatementType::Select{columns, arguments} => {
        assert_eq!(columns.len(), 3);
        assert_eq!(arguments.len(), 1);
    }
    _ => panic!("Expected select statement")
};

Modules

schema

Facility for parsing SQL schemas into a terse format that can be used for typing statements.

Structs

Fragment

FullType

Represent a type with not_null information

Issue

An issue encountered during parsing, or later stages

Issues

SelectTypeColumn

A column in select

TypeOptions

Options used when typing sql or parsing a schema

Enums

ArgumentKey

Key of argument

AutoIncrementId

Does the insert yield an auto increment id

BaseType

Canonical base type of a type

Level

Level of an issues

SQLArguments

What kinds or arguments

SQLDialect

What sql diarect to parse as

StatementType

Type information of typed statement

Type

Represent the type of a value

Functions

type_statement

Type an sql statement with respect to a given schema