pattern matching

compound_types/src/main.rs

@@ -1,7 +1,7 @@
 use std::vec;
 
 fn main() {
-    println!("Hi, I am Crab's Claw!");
+    let some = || println!("Hi, I am Crab's Claw!");
 
     let tup = (65_535,"ansh","rustify");
     println!("{}",tup.0);
@@ -11,8 +11,9 @@ fn main() {
     // destructuring
     let (x,y,z) = tup;
     println!("{}",x);
-    println!("{}",y);
-    println!("{}",z);
+    let s1 = String::from("example");
+
+let s2 = s1;
 
     let arr =[1,3,5,7,9,11];
     println!("{}",arr[1]);

compound_types/target/.rustc_info.json

@@ -1 +1 @@
-{"rustc_fingerprint":9532499942591683129,"outputs":{"15729799797837862367":{"success":true,"status":"","code":0,"stdout":"___\nlib___.rlib\nlib___.so\nlib___.so\nlib___.a\nlib___.so\n/home/ansh/.rustup/toolchains/stable-x86_64-unknown-linux-gnu\noff\npacked\nunpacked\n___\ndebug_assertions\npanic=\"unwind\"\nproc_macro\ntarget_abi=\"\"\ntarget_arch=\"x86_64\"\ntarget_endian=\"little\"\ntarget_env=\"gnu\"\ntarget_family=\"unix\"\ntarget_feature=\"fxsr\"\ntarget_feature=\"sse\"\ntarget_feature=\"sse2\"\ntarget_has_atomic=\"16\"\ntarget_has_atomic=\"32\"\ntarget_has_atomic=\"64\"\ntarget_has_atomic=\"8\"\ntarget_has_atomic=\"ptr\"\ntarget_os=\"linux\"\ntarget_pointer_width=\"64\"\ntarget_vendor=\"unknown\"\nunix\n","stderr":""},"4614504638168534921":{"success":true,"status":"","code":0,"stdout":"rustc 1.79.0 (129f3b996 2024-06-10)\nbinary: rustc\ncommit-hash: 129f3b9964af4d4a709d1383930ade12dfe7c081\ncommit-date: 2024-06-10\nhost: x86_64-unknown-linux-gnu\nrelease: 1.79.0\nLLVM version: 18.1.7\n","stderr":""}},"successes":{}}
+{"rustc_fingerprint":15575642254774671096,"outputs":{"15729799797837862367":{"success":true,"status":"","code":0,"stdout":"___.exe\nlib___.rlib\n___.dll\n___.dll\n___.lib\n___.dll\nC:\\Users\\Lenovo\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\npacked\n___\ndebug_assertions\noverflow_checks\npanic=\"unwind\"\nproc_macro\nrelocation_model=\"pic\"\ntarget_abi=\"\"\ntarget_arch=\"x86_64\"\ntarget_endian=\"little\"\ntarget_env=\"msvc\"\ntarget_family=\"windows\"\ntarget_feature=\"fxsr\"\ntarget_feature=\"sse\"\ntarget_feature=\"sse2\"\ntarget_has_atomic\ntarget_has_atomic=\"16\"\ntarget_has_atomic=\"32\"\ntarget_has_atomic=\"64\"\ntarget_has_atomic=\"8\"\ntarget_has_atomic=\"ptr\"\ntarget_has_atomic_equal_alignment=\"16\"\ntarget_has_atomic_equal_alignment=\"32\"\ntarget_has_atomic_equal_alignment=\"64\"\ntarget_has_atomic_equal_alignment=\"8\"\ntarget_has_atomic_equal_alignment=\"ptr\"\ntarget_has_atomic_load_store\ntarget_has_atomic_load_store=\"16\"\ntarget_has_atomic_load_store=\"32\"\ntarget_has_atomic_load_store=\"64\"\ntarget_has_atomic_load_store=\"8\"\ntarget_has_atomic_load_store=\"ptr\"\ntarget_os=\"windows\"\ntarget_pointer_width=\"64\"\ntarget_thread_local\ntarget_vendor=\"pc\"\nwindows\n","stderr":""},"4614504638168534921":{"success":true,"status":"","code":0,"stdout":"rustc 1.77.2 (25ef9e3d8 2024-04-09)\nbinary: rustc\ncommit-hash: 25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04\ncommit-date: 2024-04-09\nhost: x86_64-pc-windows-msvc\nrelease: 1.77.2\nLLVM version: 17.0.6\n","stderr":""},"12744816824612481171":{"success":true,"status":"","code":0,"stdout":"___.exe\nlib___.rlib\n___.dll\n___.dll\n___.lib\n___.dll\nC:\\Users\\Lenovo\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\npacked\n___\ndebug_assertions\npanic=\"unwind\"\nproc_macro\ntarget_arch=\"x86_64\"\ntarget_endian=\"little\"\ntarget_env=\"msvc\"\ntarget_family=\"windows\"\ntarget_feature=\"fxsr\"\ntarget_feature=\"sse\"\ntarget_feature=\"sse2\"\ntarget_has_atomic=\"16\"\ntarget_has_atomic=\"32\"\ntarget_has_atomic=\"64\"\ntarget_has_atomic=\"8\"\ntarget_has_atomic=\"ptr\"\ntarget_os=\"windows\"\ntarget_pointer_width=\"64\"\ntarget_vendor=\"pc\"\nwindows\n","stderr":""}},"successes":{}}

pattern-matching_options/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "pattern_matcher_options"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

pattern-matching_options/src/main.rs

@@ -0,0 +1,34 @@
+
+
+enum IpAddrKind {
+    V4,
+    V6,
+}
+
+struct IpAddr {
+    kind: IpAddrKind,
+    addr: String
+}
+
+fn main() {
+    let ip_addr = IpAddr{
+        kind:IpAddrKind::V4,
+        addr:String::from("127.0.0.1"),
+    };
+    let hm = ip_addr;
+    println!("{}",hm.addr);
+    // println!("{}",hm.kind);
+    println!("Hello, world!");
+
+    let some = Some(5);
+    let ss = Some("Ansh");
+
+}
+
+
+fn plus_one(x: Option<i32>) ->Option<i32>{
+    match x {
+        None => Option::None,
+        Some(i) => Option::Some(i+1)
+    }
+}

pattern-matching_options/target/.rustc_info.json

@@ -0,0 +1 @@
+{"rustc_fingerprint":18048038293495828682,"outputs":{"4614504638168534921":{"success":true,"status":"","code":0,"stdout":"rustc 1.77.2 (25ef9e3d8 2024-04-09)\nbinary: rustc\ncommit-hash: 25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04\ncommit-date: 2024-04-09\nhost: x86_64-pc-windows-msvc\nrelease: 1.77.2\nLLVM version: 17.0.6\n","stderr":""},"15729799797837862367":{"success":true,"status":"","code":0,"stdout":"___.exe\nlib___.rlib\n___.dll\n___.dll\n___.lib\n___.dll\nC:\\Users\\Lenovo\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\npacked\n___\ndebug_assertions\npanic=\"unwind\"\nproc_macro\ntarget_arch=\"x86_64\"\ntarget_endian=\"little\"\ntarget_env=\"msvc\"\ntarget_family=\"windows\"\ntarget_feature=\"fxsr\"\ntarget_feature=\"sse\"\ntarget_feature=\"sse2\"\ntarget_has_atomic=\"16\"\ntarget_has_atomic=\"32\"\ntarget_has_atomic=\"64\"\ntarget_has_atomic=\"8\"\ntarget_has_atomic=\"ptr\"\ntarget_os=\"windows\"\ntarget_pointer_width=\"64\"\ntarget_vendor=\"pc\"\nwindows\n","stderr":""}},"successes":{}}

pattern-matching_options/target/CACHEDIR.TAG

@@ -0,0 +1,3 @@
+Signature: 8a477f597d28d172789f06886806bc55
+# This file is a cache directory tag created by cargo.
+# For information about cache directory tags see https://bford.info/cachedir/

pattern-matching_options/target/debug/.fingerprint/pattern_matcher_options-2e98e7a37bab22db/invoked.timestamp

@@ -0,0 +1 @@
+This file has an mtime of when this was started.

pattern-matching_options/target/debug/.fingerprint/pattern_matcher_options-2e98e7a37bab22db/output-test-bin-pattern_matcher_options

@@ -0,0 +1,6 @@
+{"$message_type":"diagnostic","message":"unused variable: `some`","code":{"code":"unused_variables","explanation":null},"level":"warning","spans":[{"file_name":"src\\main.rs","byte_start":332,"byte_end":336,"line_start":23,"line_end":23,"column_start":9,"column_end":13,"is_primary":true,"text":[{"text":"    let some = Some(5);","highlight_start":9,"highlight_end":13}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"`#[warn(unused_variables)]` on by default","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"if this is intentional, prefix it with an underscore","code":null,"level":"help","spans":[{"file_name":"src\\main.rs","byte_start":332,"byte_end":336,"line_start":23,"line_end":23,"column_start":9,"column_end":13,"is_primary":true,"text":[{"text":"    let some = Some(5);","highlight_start":9,"highlight_end":13}],"label":null,"suggested_replacement":"_some","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"\u001b[0m\u001b[1m\u001b[38;5;11mwarning\u001b[0m\u001b[0m\u001b[1m\u001b[38;5;15m: unused variable: `some`\u001b[0m\n\u001b[0m  \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m--> \u001b[0m\u001b[0msrc\\main.rs:23:9\u001b[0m\n\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m|\u001b[0m\n\u001b[0m\u001b[1m\u001b[38;5;14m23\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m|\u001b[0m\u001b[0m \u001b[0m\u001b[0m    let some = Some(5);\u001b[0m\n\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m| \u001b[0m\u001b[0m        \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;11m^^^^\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;11mhelp: if this is intentional, prefix it with an underscore: `_some`\u001b[0m\n\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m|\u001b[0m\n\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m= \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;15mnote\u001b[0m\u001b[0m: `#[warn(unused_variables)]` on by default\u001b[0m\n\n"}
+{"$message_type":"diagnostic","message":"unused variable: `ss`","code":{"code":"unused_variables","explanation":null},"level":"warning","spans":[{"file_name":"src\\main.rs","byte_start":356,"byte_end":358,"line_start":24,"line_end":24,"column_start":9,"column_end":11,"is_primary":true,"text":[{"text":"    let ss = Some(\"Ansh\");","highlight_start":9,"highlight_end":11}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"if this is intentional, prefix it with an underscore","code":null,"level":"help","spans":[{"file_name":"src\\main.rs","byte_start":356,"byte_end":358,"line_start":24,"line_end":24,"column_start":9,"column_end":11,"is_primary":true,"text":[{"text":"    let ss = Some(\"Ansh\");","highlight_start":9,"highlight_end":11}],"label":null,"suggested_replacement":"_ss","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"\u001b[0m\u001b[1m\u001b[38;5;11mwarning\u001b[0m\u001b[0m\u001b[1m\u001b[38;5;15m: unused variable: `ss`\u001b[0m\n\u001b[0m  \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m--> \u001b[0m\u001b[0msrc\\main.rs:24:9\u001b[0m\n\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m|\u001b[0m\n\u001b[0m\u001b[1m\u001b[38;5;14m24\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m|\u001b[0m\u001b[0m \u001b[0m\u001b[0m    let ss = Some(\"Ansh\");\u001b[0m\n\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m| \u001b[0m\u001b[0m        \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;11m^^\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;11mhelp: if this is intentional, prefix it with an underscore: `_ss`\u001b[0m\n\n"}
+{"$message_type":"diagnostic","message":"variant `V6` is never constructed","code":{"code":"dead_code","explanation":null},"level":"warning","spans":[{"file_name":"src\\main.rs","byte_start":7,"byte_end":17,"line_start":3,"line_end":3,"column_start":6,"column_end":16,"is_primary":false,"text":[{"text":"enum IpAddrKind {","highlight_start":6,"highlight_end":16}],"label":"variant in this enum","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"src\\main.rs","byte_start":32,"byte_end":34,"line_start":5,"line_end":5,"column_start":5,"column_end":7,"is_primary":true,"text":[{"text":"    V6,","highlight_start":5,"highlight_end":7}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"`#[warn(dead_code)]` on by default","code":null,"level":"note","spans":[],"children":[],"rendered":null}],"rendered":"\u001b[0m\u001b[1m\u001b[38;5;11mwarning\u001b[0m\u001b[0m\u001b[1m\u001b[38;5;15m: variant `V6` is never constructed\u001b[0m\n\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m--> \u001b[0m\u001b[0msrc\\main.rs:5:5\u001b[0m\n\u001b[0m  \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m|\u001b[0m\n\u001b[0m\u001b[1m\u001b[38;5;14m3\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m|\u001b[0m\u001b[0m \u001b[0m\u001b[0menum IpAddrKind {\u001b[0m\n\u001b[0m  \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m| \u001b[0m\u001b[0m     \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m----------\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14mvariant in this enum\u001b[0m\n\u001b[0m\u001b[1m\u001b[38;5;14m4\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m|\u001b[0m\u001b[0m \u001b[0m\u001b[0m    V4,\u001b[0m\n\u001b[0m\u001b[1m\u001b[38;5;14m5\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m|\u001b[0m\u001b[0m \u001b[0m\u001b[0m    V6,\u001b[0m\n\u001b[0m  \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m| \u001b[0m\u001b[0m    \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;11m^^\u001b[0m\n\u001b[0m  \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m|\u001b[0m\n\u001b[0m  \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m= \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;15mnote\u001b[0m\u001b[0m: `#[warn(dead_code)]` on by default\u001b[0m\n\n"}
+{"$message_type":"diagnostic","message":"field `kind` is never read","code":{"code":"dead_code","explanation":null},"level":"warning","spans":[{"file_name":"src\\main.rs","byte_start":46,"byte_end":52,"line_start":8,"line_end":8,"column_start":8,"column_end":14,"is_primary":false,"text":[{"text":"struct IpAddr {","highlight_start":8,"highlight_end":14}],"label":"field in this struct","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"src\\main.rs","byte_start":59,"byte_end":63,"line_start":9,"line_end":9,"column_start":5,"column_end":9,"is_primary":true,"text":[{"text":"    kind: IpAddrKind,","highlight_start":5,"highlight_end":9}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":"\u001b[0m\u001b[1m\u001b[38;5;11mwarning\u001b[0m\u001b[0m\u001b[1m\u001b[38;5;15m: field `kind` is never read\u001b[0m\n\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m--> \u001b[0m\u001b[0msrc\\main.rs:9:5\u001b[0m\n\u001b[0m  \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m|\u001b[0m\n\u001b[0m\u001b[1m\u001b[38;5;14m8\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m|\u001b[0m\u001b[0m \u001b[0m\u001b[0mstruct IpAddr {\u001b[0m\n\u001b[0m  \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m| \u001b[0m\u001b[0m       \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m------\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14mfield in this struct\u001b[0m\n\u001b[0m\u001b[1m\u001b[38;5;14m9\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m|\u001b[0m\u001b[0m \u001b[0m\u001b[0m    kind: IpAddrKind,\u001b[0m\n\u001b[0m  \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m| \u001b[0m\u001b[0m    \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;11m^^^^\u001b[0m\n\n"}
+{"$message_type":"diagnostic","message":"function `plus_one` is never used","code":{"code":"dead_code","explanation":null},"level":"warning","spans":[{"file_name":"src\\main.rs","byte_start":387,"byte_end":395,"line_start":29,"line_end":29,"column_start":4,"column_end":12,"is_primary":true,"text":[{"text":"fn plus_one(x: Option<i32>) ->Option<i32>{","highlight_start":4,"highlight_end":12}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":"\u001b[0m\u001b[1m\u001b[38;5;11mwarning\u001b[0m\u001b[0m\u001b[1m\u001b[38;5;15m: function `plus_one` is never used\u001b[0m\n\u001b[0m  \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m--> \u001b[0m\u001b[0msrc\\main.rs:29:4\u001b[0m\n\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m|\u001b[0m\n\u001b[0m\u001b[1m\u001b[38;5;14m29\u001b[0m\u001b[0m \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m|\u001b[0m\u001b[0m \u001b[0m\u001b[0mfn plus_one(x: Option<i32>) ->Option<i32>{\u001b[0m\n\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;14m| \u001b[0m\u001b[0m   \u001b[0m\u001b[0m\u001b[1m\u001b[38;5;11m^^^^^^^^\u001b[0m\n\n"}
+{"$message_type":"diagnostic","message":"5 warnings emitted","code":null,"level":"warning","spans":[],"children":[],"rendered":"\u001b[0m\u001b[1m\u001b[38;5;11mwarning\u001b[0m\u001b[0m\u001b[1m\u001b[38;5;15m: 5 warnings emitted\u001b[0m\n\n"}

pattern-matching_options/target/debug/.fingerprint/pattern_matcher_options-2e98e7a37bab22db/test-bin-pattern_matcher_options

@@ -0,0 +1 @@
+53a70e8e75e2c148

pattern-matching_options/target/debug/.fingerprint/pattern_matcher_options-2e98e7a37bab22db/test-bin-pattern_matcher_options.json

@@ -0,0 +1 @@
+{"rustc":16862383235050706272,"features":"[]","declared_features":"","target":5905986829405761698,"profile":11983525691607113661,"path":1684066648322511884,"deps":[],"local":[{"CheckDepInfo":{"dep_info":"debug\\.fingerprint\\pattern_matcher_options-2e98e7a37bab22db\\dep-test-bin-pattern_matcher_options"}}],"rustflags":[],"metadata":7797948686568424061,"config":2202906307356721367,"compile_kind":0}

pattern-matching_options/target/debug/.fingerprint/pattern_matcher_options-67e8328ae96ca961/bin-pattern_matcher_options

@@ -0,0 +1 @@
+3927b829482b3b5c

pattern-matching_options/target/debug/.fingerprint/pattern_matcher_options-67e8328ae96ca961/bin-pattern_matcher_options.json

@@ -0,0 +1 @@
+{"rustc":16862383235050706272,"features":"[]","declared_features":"","target":5905986829405761698,"profile":11597332650809196192,"path":1684066648322511884,"deps":[],"local":[{"CheckDepInfo":{"dep_info":"debug\\.fingerprint\\pattern_matcher_options-67e8328ae96ca961\\dep-bin-pattern_matcher_options"}}],"rustflags":[],"metadata":7797948686568424061,"config":2202906307356721367,"compile_kind":0}

pattern-matching_options/target/debug/.fingerprint/pattern_matcher_options-67e8328ae96ca961/invoked.timestamp

@@ -0,0 +1 @@
+This file has an mtime of when this was started.