https://github.com/eddiecorrigall/jungle

Toy JVM compiler written in Java
https://github.com/eddiecorrigall/jungle

compiler java jvm lexical-analysis parser scanner syntactic-analysis

Last synced: about 18 hours ago
JSON representation

Toy JVM compiler written in Java

• Host: GitHub
• URL: https://github.com/eddiecorrigall/jungle
• Owner: eddiecorrigall
• License: other
• Created: 2023-06-28T23:59:46.000Z (over 1 year ago)
• Default Branch: master
• Last Pushed: 2024-06-26T21:19:34.000Z (5 months ago)
• Last Synced: 2024-06-27T01:21:49.177Z (5 months ago)
• Topics: compiler, java, jvm, lexical-analysis, parser, scanner, syntactic-analysis
• Language: Java
• Homepage:
• Size: 1.93 MB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README-types.md
  • License: LICENSE.md

Awesome Lists containing this project

README

        
Types

=====

| Name      | Java Name | Min       | Max      |

|-----------|-----------|-----------|----------|

| `boolean` | `boolean` | `false`   | `true`   |

| `unicode` | `char`    | `0`       | `2^16-1` |

| `i8`      | `byte`    | `-128`    | `127`    |

| `i16`     | `short`   | `-2^15`   | `2^15-1` |

| `i32`     | `int`     | `-2^31`   | `2^31-1` |

| `i64`     | `long`    | `-2^63`   | `2^63-1` |

| `f32`     | `float`   |           |          |

| `f64`     | `double`  |           |          |

## Implicit Conversion

- All integer and floating-point operations will preserve accuracy by converting to the largest precision type

```

x = 123     # i32 (default integer)

y = x + 0.0 # f32 (default float) implicit cast

```

## Explicit Conversion

- To limit precision, use explicit casting, for example:

    - Casting from floating-point to integer

    - Casting from i32 to i8

Syntax Idea:

```

x = 123     # i32 (default integer)

y = i8(x)   # i8 decrease precision

z = f64(x)  # f64 increase precision

```

Unicode Idea:

```

i = ordinal('0')  # return index of the unicode

u = unicode(48)   # return unicode value of numeric

```