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78 changes: 78 additions & 0 deletions rust/interpreter/src/lib.rs
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -560,6 +560,24 @@ impl<'a> Interpreter<'a> {
Err(anyhow!("Type mismatch for fn:minus"))
}
}
"fn:mult" => {
if let (Value::Number(a), Value::Number(b)) = (&vals[0], &vals[1]) {
Ok(Value::Number(a * b))
} else {
Err(anyhow!("Type mismatch for fn:mult"))
}
}
"fn:div" => {
if let (Value::Number(a), Value::Number(b)) = (&vals[0], &vals[1]) {
if *b == 0 {
Err(anyhow!("Division by zero"))
} else {
Ok(Value::Number(a / b))
}
} else {
Err(anyhow!("Type mismatch for fn:div"))
}
}
_ => Err(anyhow!("Unknown function: {fn_name}")),
}
}
Expand All@@ -582,3 +600,63 @@ impl<'a> Interpreter<'a> {
}
}
}

#[cfg(test)]
mod tests {
use super::*;
use mangle_ir::{Inst, Ir, Operand};

#[test]
fn test_mult_div() -> Result<()> {
let mut ir = Ir::new();
let store = MemStore::new();
let interpreter = Interpreter::new(&ir, Box::new(store));
let mut env = Env::new();

// Test fn:mult(6, 7)
let fn_mult = ir.intern_name("fn:mult");
let op6 = Operand::Const(Constant::Number(6));
let op7 = Operand::Const(Constant::Number(7));

// We use Expr::Call manually
let expr_mult = Expr::Call {
function: fn_mult,
args: vec![op6, op7],
};

if let Value::Number(n) = interpreter.eval_expr(&expr_mult, &env)? {
assert_eq!(n, 42);
} else {
panic!("Expected number");
}

// Test fn:div(10, 2)
let fn_div = ir.intern_name("fn:div");
let op10 = Operand::Const(Constant::Number(10));
let op2 = Operand::Const(Constant::Number(2));

let expr_div = Expr::Call {
function: fn_div,
args: vec![op10, op2],
};

if let Value::Number(n) = interpreter.eval_expr(&expr_div, &env)? {
assert_eq!(n, 5);
} else {
panic!("Expected number");
}

// Test fn:div(10, 0) -> Error
let op0 = Operand::Const(Constant::Number(0));
let expr_div_zero = Expr::Call {
function: fn_div,
args: vec![op10, op0],
};

let res = interpreter.eval_expr(&expr_div_zero, &env);
assert!(res.is_err());
assert_eq!(res.unwrap_err().to_string(), "Division by zero");

Ok(())
}
}
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(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
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observer.observe(document.body, { childList: true, subtree: true });
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try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
multiplication and division built in functions by hertzcodes · Pull Request #86 · google/mangle · GitHub
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78 changes: 78 additions & 0 deletions
rust/interpreter/src/lib.rs

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -560,6 +560,24 @@ impl<'a> Interpreter<'a> {
 Err(anyhow!("Type mismatch for fn:minus"))
 }
 }
 "fn:mult" => {
 if let (Value::Number(a), Value::Number(b)) = (&vals[0], &vals[1]) {
 Ok(Value::Number(a * b))
 } else {
 Err(anyhow!("Type mismatch for fn:mult"))
 }
 }
 "fn:div" => {
 if let (Value::Number(a), Value::Number(b)) = (&vals[0], &vals[1]) {
 if *b == 0 {
 Err(anyhow!("Division by zero"))
 } else {
 Ok(Value::Number(a / b))
 }
 } else {
 Err(anyhow!("Type mismatch for fn:div"))
 }
 }
 _ => Err(anyhow!("Unknown function: {fn_name}")),
 }
 }
Expand All@@ -582,3 +600,63 @@ impl<'a> Interpreter<'a> {
 }
 }
}

#[cfg(test)]
mod tests {
 use super::*;
 use mangle_ir::{Inst, Ir, Operand};

 #[test]
 fn test_mult_div() -> Result<()> {
 let mut ir = Ir::new();
 let store = MemStore::new();
 let interpreter = Interpreter::new(&ir, Box::new(store));
 let mut env = Env::new();

 // Test fn:mult(6, 7)
 let fn_mult = ir.intern_name("fn:mult");
 let op6 = Operand::Const(Constant::Number(6));
 let op7 = Operand::Const(Constant::Number(7));

 // We use Expr::Call manually
 let expr_mult = Expr::Call {
 function: fn_mult,
 args: vec![op6, op7],
 };

 if let Value::Number(n) = interpreter.eval_expr(&expr_mult, &env)? {
 assert_eq!(n, 42);
 } else {
 panic!("Expected number");
 }

 // Test fn:div(10, 2)
 let fn_div = ir.intern_name("fn:div");
 let op10 = Operand::Const(Constant::Number(10));
 let op2 = Operand::Const(Constant::Number(2));

 let expr_div = Expr::Call {
 function: fn_div,
 args: vec![op10, op2],
 };

 if let Value::Number(n) = interpreter.eval_expr(&expr_div, &env)? {
 assert_eq!(n, 5);
 } else {
 panic!("Expected number");
 }

 // Test fn:div(10, 0) -> Error
 let op0 = Operand::Const(Constant::Number(0));
 let expr_div_zero = Expr::Call {
 function: fn_div,
 args: vec![op10, op0],
 };

 let res = interpreter.eval_expr(&expr_div_zero, &env);
 assert!(res.is_err());
 assert_eq!(res.unwrap_err().to_string(), "Division by zero");

 Ok(())
 }
}

, 'i');
if (__m === '*' || __re.test(location.href)) {
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var style = document.createElement('style');
style.textContent = '
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color-scheme: dark light;
}
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';
document.head.appendChild(style);
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}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
multiplication and division built in functions by hertzcodes · Pull Request #86 · google/mangle · GitHub
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multiplication and division built in functions#86

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#86
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78 changes: 78 additions & 0 deletions
rust/interpreter/src/lib.rs

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -560,6 +560,24 @@ impl<'a> Interpreter<'a> {
 Err(anyhow!("Type mismatch for fn:minus"))
 }
 }
 "fn:mult" => {
 if let (Value::Number(a), Value::Number(b)) = (&vals[0], &vals[1]) {
 Ok(Value::Number(a * b))
 } else {
 Err(anyhow!("Type mismatch for fn:mult"))
 }
 }
 "fn:div" => {
 if let (Value::Number(a), Value::Number(b)) = (&vals[0], &vals[1]) {
 if *b == 0 {
 Err(anyhow!("Division by zero"))
 } else {
 Ok(Value::Number(a / b))
 }
 } else {
 Err(anyhow!("Type mismatch for fn:div"))
 }
 }
 _ => Err(anyhow!("Unknown function: {fn_name}")),
 }
 }
Expand All@@ -582,3 +600,63 @@ impl<'a> Interpreter<'a> {
 }
 }
}

#[cfg(test)]
mod tests {
 use super::*;
 use mangle_ir::{Inst, Ir, Operand};

 #[test]
 fn test_mult_div() -> Result<()> {
 let mut ir = Ir::new();
 let store = MemStore::new();
 let interpreter = Interpreter::new(&ir, Box::new(store));
 let mut env = Env::new();

 // Test fn:mult(6, 7)
 let fn_mult = ir.intern_name("fn:mult");
 let op6 = Operand::Const(Constant::Number(6));
 let op7 = Operand::Const(Constant::Number(7));

 // We use Expr::Call manually
 let expr_mult = Expr::Call {
 function: fn_mult,
 args: vec![op6, op7],
 };

 if let Value::Number(n) = interpreter.eval_expr(&expr_mult, &env)? {
 assert_eq!(n, 42);
 } else {
 panic!("Expected number");
 }

 // Test fn:div(10, 2)
 let fn_div = ir.intern_name("fn:div");
 let op10 = Operand::Const(Constant::Number(10));
 let op2 = Operand::Const(Constant::Number(2));

 let expr_div = Expr::Call {
 function: fn_div,
 args: vec![op10, op2],
 };

 if let Value::Number(n) = interpreter.eval_expr(&expr_div, &env)? {
 assert_eq!(n, 5);
 } else {
 panic!("Expected number");
 }

 // Test fn:div(10, 0) -> Error
 let op0 = Operand::Const(Constant::Number(0));
 let expr_div_zero = Expr::Call {
 function: fn_div,
 args: vec![op10, op0],
 };

 let res = interpreter.eval_expr(&expr_div_zero, &env);
 assert!(res.is_err());
 assert_eq!(res.unwrap_err().to_string(), "Division by zero");

 Ok(())
 }
}

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
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style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
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parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
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span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
multiplication and division built in functions by hertzcodes · Pull Request #86 · google/mangle · GitHub
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multiplication and division built in functions#86

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78 changes: 78 additions & 0 deletions
rust/interpreter/src/lib.rs

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -560,6 +560,24 @@ impl<'a> Interpreter<'a> {
 Err(anyhow!("Type mismatch for fn:minus"))
 }
 }
 "fn:mult" => {
 if let (Value::Number(a), Value::Number(b)) = (&vals[0], &vals[1]) {
 Ok(Value::Number(a * b))
 } else {
 Err(anyhow!("Type mismatch for fn:mult"))
 }
 }
 "fn:div" => {
 if let (Value::Number(a), Value::Number(b)) = (&vals[0], &vals[1]) {
 if *b == 0 {
 Err(anyhow!("Division by zero"))
 } else {
 Ok(Value::Number(a / b))
 }
 } else {
 Err(anyhow!("Type mismatch for fn:div"))
 }
 }
 _ => Err(anyhow!("Unknown function: {fn_name}")),
 }
 }
Expand All@@ -582,3 +600,63 @@ impl<'a> Interpreter<'a> {
 }
 }
}

#[cfg(test)]
mod tests {
 use super::*;
 use mangle_ir::{Inst, Ir, Operand};

 #[test]
 fn test_mult_div() -> Result<()> {
 let mut ir = Ir::new();
 let store = MemStore::new();
 let interpreter = Interpreter::new(&ir, Box::new(store));
 let mut env = Env::new();

 // Test fn:mult(6, 7)
 let fn_mult = ir.intern_name("fn:mult");
 let op6 = Operand::Const(Constant::Number(6));
 let op7 = Operand::Const(Constant::Number(7));

 // We use Expr::Call manually
 let expr_mult = Expr::Call {
 function: fn_mult,
 args: vec![op6, op7],
 };

 if let Value::Number(n) = interpreter.eval_expr(&expr_mult, &env)? {
 assert_eq!(n, 42);
 } else {
 panic!("Expected number");
 }

 // Test fn:div(10, 2)
 let fn_div = ir.intern_name("fn:div");
 let op10 = Operand::Const(Constant::Number(10));
 let op2 = Operand::Const(Constant::Number(2));

 let expr_div = Expr::Call {
 function: fn_div,
 args: vec![op10, op2],
 };

 if let Value::Number(n) = interpreter.eval_expr(&expr_div, &env)? {
 assert_eq!(n, 5);
 } else {
 panic!("Expected number");
 }

 // Test fn:div(10, 0) -> Error
 let op0 = Operand::Const(Constant::Number(0));
 let expr_div_zero = Expr::Call {
 function: fn_div,
 args: vec![op10, op0],
 };

 let res = interpreter.eval_expr(&expr_div_zero, &env);
 assert!(res.is_err());
 assert_eq!(res.unwrap_err().to_string(), "Division by zero");

 Ok(())
 }
}

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
multiplication and division built in functions by hertzcodes · Pull Request #86 · google/mangle · GitHub
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multiplication and division built in functions#86

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#86
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78 changes: 78 additions & 0 deletions
rust/interpreter/src/lib.rs

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -560,6 +560,24 @@ impl<'a> Interpreter<'a> {
 Err(anyhow!("Type mismatch for fn:minus"))
 }
 }
 "fn:mult" => {
 if let (Value::Number(a), Value::Number(b)) = (&vals[0], &vals[1]) {
 Ok(Value::Number(a * b))
 } else {
 Err(anyhow!("Type mismatch for fn:mult"))
 }
 }
 "fn:div" => {
 if let (Value::Number(a), Value::Number(b)) = (&vals[0], &vals[1]) {
 if *b == 0 {
 Err(anyhow!("Division by zero"))
 } else {
 Ok(Value::Number(a / b))
 }
 } else {
 Err(anyhow!("Type mismatch for fn:div"))
 }
 }
 _ => Err(anyhow!("Unknown function: {fn_name}")),
 }
 }
Expand All@@ -582,3 +600,63 @@ impl<'a> Interpreter<'a> {
 }
 }
}

#[cfg(test)]
mod tests {
 use super::*;
 use mangle_ir::{Inst, Ir, Operand};

 #[test]
 fn test_mult_div() -> Result<()> {
 let mut ir = Ir::new();
 let store = MemStore::new();
 let interpreter = Interpreter::new(&ir, Box::new(store));
 let mut env = Env::new();

 // Test fn:mult(6, 7)
 let fn_mult = ir.intern_name("fn:mult");
 let op6 = Operand::Const(Constant::Number(6));
 let op7 = Operand::Const(Constant::Number(7));

 // We use Expr::Call manually
 let expr_mult = Expr::Call {
 function: fn_mult,
 args: vec![op6, op7],
 };

 if let Value::Number(n) = interpreter.eval_expr(&expr_mult, &env)? {
 assert_eq!(n, 42);
 } else {
 panic!("Expected number");
 }

 // Test fn:div(10, 2)
 let fn_div = ir.intern_name("fn:div");
 let op10 = Operand::Const(Constant::Number(10));
 let op2 = Operand::Const(Constant::Number(2));

 let expr_div = Expr::Call {
 function: fn_div,
 args: vec![op10, op2],
 };

 if let Value::Number(n) = interpreter.eval_expr(&expr_div, &env)? {
 assert_eq!(n, 5);
 } else {
 panic!("Expected number");
 }

 // Test fn:div(10, 0) -> Error
 let op0 = Operand::Const(Constant::Number(0));
 let expr_div_zero = Expr::Call {
 function: fn_div,
 args: vec![op10, op0],
 };

 let res = interpreter.eval_expr(&expr_div_zero, &env);
 assert!(res.is_err());
 assert_eq!(res.unwrap_err().to_string(), "Division by zero");

 Ok(())
 }
}

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
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// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
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observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
multiplication and division built in functions by hertzcodes · Pull Request #86 · google/mangle · GitHub
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multiplication and division built in functions#86

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78 changes: 78 additions & 0 deletions
rust/interpreter/src/lib.rs

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -560,6 +560,24 @@ impl<'a> Interpreter<'a> {
 Err(anyhow!("Type mismatch for fn:minus"))
 }
 }
 "fn:mult" => {
 if let (Value::Number(a), Value::Number(b)) = (&vals[0], &vals[1]) {
 Ok(Value::Number(a * b))
 } else {
 Err(anyhow!("Type mismatch for fn:mult"))
 }
 }
 "fn:div" => {
 if let (Value::Number(a), Value::Number(b)) = (&vals[0], &vals[1]) {
 if *b == 0 {
 Err(anyhow!("Division by zero"))
 } else {
 Ok(Value::Number(a / b))
 }
 } else {
 Err(anyhow!("Type mismatch for fn:div"))
 }
 }
 _ => Err(anyhow!("Unknown function: {fn_name}")),
 }
 }
Expand All@@ -582,3 +600,63 @@ impl<'a> Interpreter<'a> {
 }
 }
}

#[cfg(test)]
mod tests {
 use super::*;
 use mangle_ir::{Inst, Ir, Operand};

 #[test]
 fn test_mult_div() -> Result<()> {
 let mut ir = Ir::new();
 let store = MemStore::new();
 let interpreter = Interpreter::new(&ir, Box::new(store));
 let mut env = Env::new();

 // Test fn:mult(6, 7)
 let fn_mult = ir.intern_name("fn:mult");
 let op6 = Operand::Const(Constant::Number(6));
 let op7 = Operand::Const(Constant::Number(7));

 // We use Expr::Call manually
 let expr_mult = Expr::Call {
 function: fn_mult,
 args: vec![op6, op7],
 };

 if let Value::Number(n) = interpreter.eval_expr(&expr_mult, &env)? {
 assert_eq!(n, 42);
 } else {
 panic!("Expected number");
 }

 // Test fn:div(10, 2)
 let fn_div = ir.intern_name("fn:div");
 let op10 = Operand::Const(Constant::Number(10));
 let op2 = Operand::Const(Constant::Number(2));

 let expr_div = Expr::Call {
 function: fn_div,
 args: vec![op10, op2],
 };

 if let Value::Number(n) = interpreter.eval_expr(&expr_div, &env)? {
 assert_eq!(n, 5);
 } else {
 panic!("Expected number");
 }

 // Test fn:div(10, 0) -> Error
 let op0 = Operand::Const(Constant::Number(0));
 let expr_div_zero = Expr::Call {
 function: fn_div,
 args: vec![op10, op0],
 };

 let res = interpreter.eval_expr(&expr_div_zero, &env);
 assert!(res.is_err());
 assert_eq!(res.unwrap_err().to_string(), "Division by zero");

 Ok(())
 }
}

, 'i');
if (__m === '*' || __re.test(location.href)) {
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function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
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el.style.position = 'static';
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(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
multiplication and division built in functions by hertzcodes · Pull Request #86 · google/mangle · GitHub
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multiplication and division built in functions#86

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#86
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78 changes: 78 additions & 0 deletions
rust/interpreter/src/lib.rs

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -560,6 +560,24 @@ impl<'a> Interpreter<'a> {
 Err(anyhow!("Type mismatch for fn:minus"))
 }
 }
 "fn:mult" => {
 if let (Value::Number(a), Value::Number(b)) = (&vals[0], &vals[1]) {
 Ok(Value::Number(a * b))
 } else {
 Err(anyhow!("Type mismatch for fn:mult"))
 }
 }
 "fn:div" => {
 if let (Value::Number(a), Value::Number(b)) = (&vals[0], &vals[1]) {
 if *b == 0 {
 Err(anyhow!("Division by zero"))
 } else {
 Ok(Value::Number(a / b))
 }
 } else {
 Err(anyhow!("Type mismatch for fn:div"))
 }
 }
 _ => Err(anyhow!("Unknown function: {fn_name}")),
 }
 }
Expand All@@ -582,3 +600,63 @@ impl<'a> Interpreter<'a> {
 }
 }
}

#[cfg(test)]
mod tests {
 use super::*;
 use mangle_ir::{Inst, Ir, Operand};

 #[test]
 fn test_mult_div() -> Result<()> {
 let mut ir = Ir::new();
 let store = MemStore::new();
 let interpreter = Interpreter::new(&ir, Box::new(store));
 let mut env = Env::new();

 // Test fn:mult(6, 7)
 let fn_mult = ir.intern_name("fn:mult");
 let op6 = Operand::Const(Constant::Number(6));
 let op7 = Operand::Const(Constant::Number(7));

 // We use Expr::Call manually
 let expr_mult = Expr::Call {
 function: fn_mult,
 args: vec![op6, op7],
 };

 if let Value::Number(n) = interpreter.eval_expr(&expr_mult, &env)? {
 assert_eq!(n, 42);
 } else {
 panic!("Expected number");
 }

 // Test fn:div(10, 2)
 let fn_div = ir.intern_name("fn:div");
 let op10 = Operand::Const(Constant::Number(10));
 let op2 = Operand::Const(Constant::Number(2));

 let expr_div = Expr::Call {
 function: fn_div,
 args: vec![op10, op2],
 };

 if let Value::Number(n) = interpreter.eval_expr(&expr_div, &env)? {
 assert_eq!(n, 5);
 } else {
 panic!("Expected number");
 }

 // Test fn:div(10, 0) -> Error
 let op0 = Operand::Const(Constant::Number(0));
 let expr_div_zero = Expr::Call {
 function: fn_div,
 args: vec![op10, op0],
 };

 let res = interpreter.eval_expr(&expr_div_zero, &env);
 assert!(res.is_err());
 assert_eq!(res.unwrap_err().to_string(), "Division by zero");

 Ok(())
 }
}

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
multiplication and division built in functions by hertzcodes · Pull Request #86 · google/mangle · GitHub
Skip to content
multiplication and division built in functions#86

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hertzcodes
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multiplication and division built in functions
#86
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78 changes: 78 additions & 0 deletions
rust/interpreter/src/lib.rs

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -560,6 +560,24 @@ impl<'a> Interpreter<'a> {
 Err(anyhow!("Type mismatch for fn:minus"))
 }
 }
 "fn:mult" => {
 if let (Value::Number(a), Value::Number(b)) = (&vals[0], &vals[1]) {
 Ok(Value::Number(a * b))
 } else {
 Err(anyhow!("Type mismatch for fn:mult"))
 }
 }
 "fn:div" => {
 if let (Value::Number(a), Value::Number(b)) = (&vals[0], &vals[1]) {
 if *b == 0 {
 Err(anyhow!("Division by zero"))
 } else {
 Ok(Value::Number(a / b))
 }
 } else {
 Err(anyhow!("Type mismatch for fn:div"))
 }
 }
 _ => Err(anyhow!("Unknown function: {fn_name}")),
 }
 }
Expand All@@ -582,3 +600,63 @@ impl<'a> Interpreter<'a> {
 }
 }
}

#[cfg(test)]
mod tests {
 use super::*;
 use mangle_ir::{Inst, Ir, Operand};

 #[test]
 fn test_mult_div() -> Result<()> {
 let mut ir = Ir::new();
 let store = MemStore::new();
 let interpreter = Interpreter::new(&ir, Box::new(store));
 let mut env = Env::new();

 // Test fn:mult(6, 7)
 let fn_mult = ir.intern_name("fn:mult");
 let op6 = Operand::Const(Constant::Number(6));
 let op7 = Operand::Const(Constant::Number(7));

 // We use Expr::Call manually
 let expr_mult = Expr::Call {
 function: fn_mult,
 args: vec![op6, op7],
 };

 if let Value::Number(n) = interpreter.eval_expr(&expr_mult, &env)? {
 assert_eq!(n, 42);
 } else {
 panic!("Expected number");
 }

 // Test fn:div(10, 2)
 let fn_div = ir.intern_name("fn:div");
 let op10 = Operand::Const(Constant::Number(10));
 let op2 = Operand::Const(Constant::Number(2));

 let expr_div = Expr::Call {
 function: fn_div,
 args: vec![op10, op2],
 };

 if let Value::Number(n) = interpreter.eval_expr(&expr_div, &env)? {
 assert_eq!(n, 5);
 } else {
 panic!("Expected number");
 }

 // Test fn:div(10, 0) -> Error
 let op0 = Operand::Const(Constant::Number(0));
 let expr_div_zero = Expr::Call {
 function: fn_div,
 args: vec![op10, op0],
 };

 let res = interpreter.eval_expr(&expr_div_zero, &env);
 assert!(res.is_err());
 assert_eq!(res.unwrap_err().to_string(), "Division by zero");

 Ok(())
 }
}