72b721f48e
When one of these tests fails, any compiler warnings will be printed to the console, which makes it harder to track down the actual reason for failure. (The outstanding warnings were found by temporarily adding `-Dwarnings` to the compiler arguments for `RunCoverage` in `src/tools/compiletest/src/runtest.rs`.)
91 lines
2.7 KiB
Rust
91 lines
2.7 KiB
Rust
#![allow(unused_assignments, unused_variables)]
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// compile-flags: -C opt-level=3
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// ^^ validates coverage now works with optimizations
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use std::fmt::Debug;
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pub fn used_function() {
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// Initialize test constants in a way that cannot be determined at compile time, to ensure
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// rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
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// dependent conditions.
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let is_true = std::env::args().len() == 1;
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let mut countdown = 0;
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if is_true {
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countdown = 10;
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}
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use_this_lib_crate();
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}
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#[inline(always)]
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pub fn used_inline_function() {
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// Initialize test constants in a way that cannot be determined at compile time, to ensure
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// rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
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// dependent conditions.
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let is_true = std::env::args().len() == 1;
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let mut countdown = 0;
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if is_true {
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countdown = 10;
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}
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use_this_lib_crate();
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}
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#[inline(always)]
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pub fn used_only_from_bin_crate_generic_function<T: Debug>(arg: T) {
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println!("used_only_from_bin_crate_generic_function with {:?}", arg);
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}
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// Expect for above function: `Unexecuted instantiation` (see notes in `used_crate.rs`)
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#[inline(always)]
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pub fn used_only_from_this_lib_crate_generic_function<T: Debug>(arg: T) {
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println!("used_only_from_this_lib_crate_generic_function with {:?}", arg);
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}
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#[inline(always)]
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pub fn used_from_bin_crate_and_lib_crate_generic_function<T: Debug>(arg: T) {
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println!("used_from_bin_crate_and_lib_crate_generic_function with {:?}", arg);
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}
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#[inline(always)]
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pub fn used_with_same_type_from_bin_crate_and_lib_crate_generic_function<T: Debug>(arg: T) {
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println!("used_with_same_type_from_bin_crate_and_lib_crate_generic_function with {:?}", arg);
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}
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#[inline(always)]
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pub fn unused_generic_function<T: Debug>(arg: T) {
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println!("unused_generic_function with {:?}", arg);
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}
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#[inline(always)]
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pub fn unused_function() {
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let is_true = std::env::args().len() == 1;
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let mut countdown = 2;
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if !is_true {
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countdown = 20;
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}
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}
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#[inline(always)]
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#[allow(dead_code)]
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fn unused_private_function() {
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let is_true = std::env::args().len() == 1;
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let mut countdown = 2;
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if !is_true {
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countdown = 20;
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}
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}
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fn use_this_lib_crate() {
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used_from_bin_crate_and_lib_crate_generic_function("used from library used_crate.rs");
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used_with_same_type_from_bin_crate_and_lib_crate_generic_function(
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"used from library used_crate.rs",
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);
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let some_vec = vec![5, 6, 7, 8];
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used_only_from_this_lib_crate_generic_function(some_vec);
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used_only_from_this_lib_crate_generic_function("used ONLY from library used_crate.rs");
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}
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