Crate rbatis_codegen 

Compile time dynamic SQL generator.

This is the compiler behind #[py_sql], #[html_sql] and #[sql] (provided by the rbatis-macro-driver crate and re-exported as rbatis::rbatis_codegen). A dynamic SQL template is parsed here and turned into plain Rust source code, which is then compiled by the rustc invocation that is already running. That is why a query written in py_sql/html_sql runs as fast as hand written SQL: nothing is interpreted at runtime.

• codegen::func holds the code generation functions
• codegen::parser_pysql and codegen::parser_html parse the two languages
• codegen::syntax_tree_pysql and codegen::syntax_tree_html are the abstract syntax trees they produce
• ops contains the operators that are available inside a template (+, ==, .sql(), .csv(), …)
• IntoSql renders a value as SQL, used by ${arg} interpolation

Most users never depend on this crate directly; it is documented because it is re-exported from rbatis.

Re-exports

pub use into_sql::IntoSql;

pub use codegen::rb_html;

pub use codegen::rb_py;

Modules

codegen

parsers and code generators of the py_sql and html_sql languages

error

error type of the code generator

from_bool

bool helpers available inside a template expression

into_sql

rendering a value as SQL, used by ${arg} interpolation

ops

operators (+, ==, .sql(), …) usable inside a template

ops_add

+ operator

ops_bit_and

& (bit and) operator

ops_bit_or

| (bit or) operator

ops_cmp

comparison operators (>, <, >=, <=)

ops_div

/ operator

ops_eq

== operator

ops_mul

* operator

ops_neg

unary - operator

ops_not

! operator

ops_rem

% operator

ops_shl

<< operator

ops_shr

>> operator

ops_string

string helpers (.sql(), .csv(), …)

ops_sub

- operator

ops_xor

^ operator