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Structured Text Parser and LLVM Frontend

License: GNU Lesser General Public License v3.0

Rust 99.69% Shell 0.10% Dockerfile 0.21%

rusty-1's Introduction

RuSTy

Structured text compiler written in Rust

                    IR-CodeGen
     Project        Programs             Global           IEC61131 Num and String types
     start          Expressions          Variables 
       |              |                    |                   |
       |              |                    |                   |
----I-------------I-------------I-------------I-------------I-------------I-------------I----
 nov-'19       jan-'20       mar-'20       may-'20      june-'20       dec-'20       jan-'21  
----I-------------I-------------I-------------I-------------I-------------I-------------I----
                  |                   |          |                        |
                  |                   |          |                        |
                Parsing            Control       Call Stmts           Array Access
                POUs               Structures    for all
                Statements                       POUs
                Expressions

Supported Language Concepts

POUs

✔️ Program
✔️ Function
✔️ FunctionBlock
❌ Action

Datatypes

✔️ IEC 61131-3 numeric types
✔️ Strings
✔️ Struct types
✔️ Enum types
✔️ Array data types
✔️ Alias types
❌ Sub-ranges types
❌ Sized String types
❌ Initial values

Declarations

✔️ VAR
✔️ VAR_INPUT
✔️ VAR_OUTPUT
❌ VAR_INOUT

Statements

✔️ Assignments
✔️ Call statements
✔️ Implicit call arguments
✔️ Explicit call arguments

Control Structures

✔️ IF Statement
✔️ CASE Statement
✔️ FOR Loops
✔️ WHILE Loops
✔️ REPEAT Loops

Expressions

✔️ Arithmetic Operators
✔️ Relational Operators
✔️ Logical Operators
✔️ Bitwise Operators

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