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#![deny(clippy::if_same_then_else, clippy::branches_sharing_code)]
#![allow(dead_code)]
#![allow(clippy::equatable_if_let, clippy::uninlined_format_args)]
// This tests the branches_sharing_code lint at the end of blocks
fn simple_examples() {
let x = 1;
let _ = if x == 7 {
println!("Branch I");
let start_value = 0;
println!("=^.^=");
// Same but not moveable due to `start_value`
let _ = start_value;
// The rest is self contained and moveable => Only lint the rest
let result = false;
println!("Block end!");
result
} else {
println!("Branch II");
let start_value = 8;
println!("xD");
// Same but not moveable due to `start_value`
let _ = start_value;
// The rest is self contained and moveable => Only lint the rest
let result = false;
println!("Block end!");
result
};
// Else if block
if x == 9 {
println!("The index is: 6");
println!("Same end of block");
} else if x == 8 {
println!("The index is: 4");
// We should only get a lint trigger for the last statement
println!("This is also eq with the else block");
println!("Same end of block");
} else {
println!("This is also eq with the else block");
println!("Same end of block");
}
// Use of outer scope value
let outer_scope_value = "I'm outside the if block";
if x < 99 {
let z = "How are you";
println!("I'm a local because I use the value `z`: `{}`", z);
println!(
"I'm moveable because I know: `outer_scope_value`: '{}'",
outer_scope_value
);
} else {
let z = 45678000;
println!("I'm a local because I use the value `z`: `{}`", z);
println!(
"I'm moveable because I know: `outer_scope_value`: '{}'",
outer_scope_value
);
}
if x == 9 {
if x == 8 {
// No parent!!
println!("---");
println!("Hello World");
} else {
println!("Hello World");
}
}
}
/// Simple examples where the move can cause some problems due to moved values
fn simple_but_suggestion_is_invalid() {
let x = 16;
// Local value
let later_used_value = 17;
if x == 9 {
let _ = 9;
let later_used_value = "A string value";
println!("{}", later_used_value);
} else {
let later_used_value = "A string value";
println!("{}", later_used_value);
// I'm expecting a note about this
}
println!("{}", later_used_value);
// outer function
if x == 78 {
let simple_examples = "I now identify as a &str :)";
println!("This is the new simple_example: {}", simple_examples);
} else {
println!("Separator print statement");
let simple_examples = "I now identify as a &str :)";
println!("This is the new simple_example: {}", simple_examples);
}
simple_examples();
}
/// Tests where the blocks are not linted due to the used value scope
fn not_moveable_due_to_value_scope() {
let x = 18;
// Using a local value in the moved code
if x == 9 {
let y = 18;
println!("y is: `{}`", y);
} else {
let y = "A string";
println!("y is: `{}`", y);
}
// Using a local value in the expression
let _ = if x == 0 {
let mut result = x + 1;
println!("1. Doing some calculations");
println!("2. Some more calculations");
println!("3. Setting result");
result
} else {
let mut result = x - 1;
println!("1. Doing some calculations");
println!("2. Some more calculations");
println!("3. Setting result");
result
};
let _ = if x == 7 {
let z1 = 100;
println!("z1: {}", z1);
let z2 = z1;
println!("z2: {}", z2);
z2
} else {
let z1 = 300;
println!("z1: {}", z1);
let z2 = z1;
println!("z2: {}", z2);
z2
};
}
/// This should add a note to the lint msg since the moved expression is not `()`
fn added_note_for_expression_use() -> u32 {
let x = 9;
let _ = if x == 7 {
x << 2
} else {
let _ = 6;
x << 2
};
if x == 9 {
x * 4
} else {
let _ = 17;
x * 4
}
}
#[rustfmt::skip]
fn test_suggestion_with_weird_formatting() {
let x = 9;
let mut a = 0;
let mut b = 0;
// The error message still looks weird tbh but this is the best I can do
// for weird formatting
if x == 17 { b = 1; a = 0x99; } else { a = 0x99; }
}
fn fp_test() {
let x = 17;
if x == 18 {
let y = 19;
if y < x {
println!("Trigger")
}
} else {
let z = 166;
if z < x {
println!("Trigger")
}
}
}
fn fp_if_let_issue7054() {
// This shouldn't trigger the lint
let string;
let _x = if let true = true {
""
} else if true {
string = "x".to_owned();
&string
} else {
string = "y".to_owned();
&string
};
}
fn main() {}
|
