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* Improve CI testing * Bail on error * cargo fmt * Invert names * Split misc action * Rename some actionspull/3337/head
José Julián Espina
12 months ago
committed by
GitHub
19 changed files with 262 additions and 178 deletions
@ -1,31 +1,31 @@ |
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// This example shows how to load, parse and execute JS code from a source file
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// This example shows how to load, parse and execute JS code from a source file
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// (./scripts/helloworld.js)
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// (./scripts/helloworld.js)
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use std::path::Path; |
use std::{error::Error, path::Path}; |
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use boa_engine::{Context, Source}; |
use boa_engine::{js_string, property::Attribute, Context, Source}; |
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use boa_runtime::Console; |
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fn main() { |
/// Adds the custom runtime to the context.
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fn add_runtime(context: &mut Context<'_>) { |
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// We first add the `console` object, to be able to call `console.log()`.
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let console = Console::init(context); |
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context |
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.register_global_property(js_string!(Console::NAME), console, Attribute::all()) |
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.expect("the console builtin shouldn't exist"); |
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} |
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fn main() -> Result<(), Box<dyn Error>> { |
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let js_file_path = "./scripts/helloworld.js"; |
let js_file_path = "./scripts/helloworld.js"; |
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match Source::from_filepath(Path::new(js_file_path)) { |
let source = Source::from_filepath(Path::new(js_file_path))?; |
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Ok(src) => { |
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// Instantiate the execution context
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// Instantiate the execution context
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let mut context = Context::default(); |
let mut context = Context::default(); |
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// Parse the source code
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// Add the runtime intrisics
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match context.eval(src) { |
add_runtime(&mut context); |
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Ok(res) => { |
// Parse the source code and print the result
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println!( |
println!("{}", context.eval(source)?.display()); |
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"{}", |
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res.to_string(&mut context).unwrap().to_std_string_escaped() |
Ok(()) |
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); |
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} |
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Err(e) => { |
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// Pretty print the error
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eprintln!("Uncaught {e}"); |
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} |
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}; |
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} |
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Err(msg) => eprintln!("Error: {msg}"), |
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} |
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} |
} |
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