Feature: Parser #8

New Issue

j · 2023-09-23T05:54:03Z

j commented

2023-09-23 05:54:03 +00:00

Feature Progress

Decide on the language's grammar
- Create production rules for expressions
- Use these production rules to implement a function which turns a sequence of tokens into an AST
Implement function declaration syntax
Implement function call syntax
Implement variable declaration and definition syntax
Implement a temporary range syntax
Implement items
Implement static scopes/modules

Feature description

The Parser takes a sequence of tokens and uses them to construct an abstract syntax tree using the rules of the language's grammar.

Example

// This is a Conlang file. Conlang is an expression-based language designed for maximum flexibility etc. etc. whatever

// This is a function. It can be called with the call operator
fn main() {
    // This is a variable declaration
    let x = 100;

    let y = if x < 50 {
        // do a thing
        0
    } else {
        // do a different thing, and return the result of that
        x
    }

    // This is an example of a for loop using range syntax
    let z = for i in 0..y {
        // do a thing repeatedly, return the result of the last iteration
    }

    // TODO: decide how to do IO
}

# Feature Progress  - [x] Decide on the language's grammar - [x] Create production rules for expressions - [x] Use these production rules to implement a function which turns a sequence of tokens into an AST - [x] Implement function declaration syntax - [x] Implement function call syntax - [x] Implement variable declaration and definition syntax - [x] Implement a temporary range syntax - [x] Implement items - [x] Implement static scopes/modules # Feature description  The Parser takes a sequence of tokens and uses them to construct an abstract syntax tree using the rules of the language's grammar. # Example  ```rust // This is a Conlang file. Conlang is an expression-based language designed for maximum flexibility etc. etc. whatever // This is a function. It can be called with the call operator fn main() { // This is a variable declaration let x = 100; let y = if x < 50 { // do a thing 0 } else { // do a different thing, and return the result of that x } // This is an example of a for loop using range syntax let z = for i in 0..y { // do a thing repeatedly, return the result of the last iteration } // TODO: decide how to do IO } ```

j added the

enhancement

label 2023-09-23 05:54:03 +00:00

j self-assigned this 2023-09-23 05:54:03 +00:00

j added this to the Basic Syntax project 2023-09-23 05:54:03 +00:00

j added a new dependency 2023-09-23 05:54:20 +00:00

#7 Feature: Lexer

j pinned this 2023-09-23 05:58:10 +00:00

j commented

2024-03-01 09:11:30 +00:00

Parser is pretty much complete, now. Conlang has a basic grammar, a tree-walk interpreter which can handle a minimal subset of that grammar, and even a few programs to its name!

j closed this issue

2024-03-01 09:11:30 +00:00

j unpinned this 2024-03-01 09:13:54 +00:00

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