Walt - JavaScript-like syntax for WebAssembly

API

compile

Compile with plugins, future default export

Parameters

Name	Type
source	string
config	ConfigType

Example

import { compile } from 'walt-compiler';

 const buffer = compile(`
   let counter: i32 = 0;
   export function count(): i32 {
     counter += 1;
     return counter;
   }
`).buffer();

WebAssembly.instantiate(buffer).then(result => {
  console.log(`First invocation: ${result.instance.exports.count()}`);
  console.log(`Second invocation: ${result.instance.exports.count()}`);
});

debug

debug description?

Parameters

Name	Type
stream	OutputStream
begin	number
end	number

emitter

emitter description?

generator

generator description?

returns ProgramType

Parameters

Name	Type
ast	NodeType
config	GeneratorOptions

getIR

Used for debugging purposes

Parameters

Name	Type
source	string
config	ConfigType

makeFragment

Creates the "bare" Abstract Syntax Tree.

Parameters

Name	Type
parser	string
source	string

makeParser

Creates the "bare" Abstract Syntax Tree.

Parameters

Name	Type
extraGrammar	Unknown
source	string

mapNode

This should maybe be it's own module.

Parameters

Name	Type
visitor	Unknown

prettyPrintNode

printNode description?

semantics

Return AST with full transformations applied

returns NodeType

Parameters

Name	Type
ast	NodeType
extraSemantics	Unknown
options	SemanticOptions

stringDecoder

stringDecoder description?

Parameters

Name	Type
view	Unknown
start	Unknown

stringEncoder

stringEncoder description?

returns string

Parameters

Name	Type
value	string

validate

We walk the the entire tree and perform syntax validation before we continue onto the generator. This may throw sometimes

Parameters

Name	Type
ast	NodeType
$1	Unknown

walkNode

Dead simple AST walker, takes a visitor object and calls all methods for appropriate node Types.

Parameters

Name	Type
visitor	Unknown