Import: Assignment 1 - Shell

Original repo: https://cs140e.sergio.bz/assignments/1-shell/skeleton.git

1-shell/.gitignore

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+# Swap
+[._]*.s[a-v][a-z]
+[._]*.sw[a-p]
+[._]s[a-v][a-z]
+[._]sw[a-p]
+
+# Session
+Session.vim
+
+# Temporary
+.netrwhist
+*~
+
+# Org-mode
+.org-id-locations
+*_archive
+
+# flymake-mode
+*_flymake.*
+
+# reftex files
+*.rel
+
+# cask packages
+.cask/
+
+# Flycheck
+flycheck_*.el
+
+# projectiles files
+.projectile
+
+# directory configuration
+.dir-locals.el
+
+# Prerequisites
+*.d
+
+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+
+# Linker output
+*.ilk
+*.map
+*.exp
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+*.bin
+*.img
+
+# Debug files
+*.dSYM/
+*.su
+*.idb
+*.pdb
+
+# Kernel Module Compile Results
+*.mod*
+*.cmd
+.tmp_versions/
+modules.order
+Module.symvers
+Mkfile.old
+dkms.conf
+
+# Generated by Cargo
+# will have compiled files and executables
+target/
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here http://doc.crates.io/guide.html#cargotoml-vs-cargolock
+Cargo.lock
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# Windows thumbnail cache files
+Thumbs.db
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# Submission files
+*.tar.gz
+
+# Assignment 1 specific
+ttywrite/input
+ttywrite/output

1-shell/Makefile

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+ASSIGNMENT_NAME := assignment1
+BASE_URL := https://cs140e.sergio.bz
+SUBMISSION_SITE := $(BASE_URL)/assignments/submission/
+SUBMIT_TAR := $(ASSIGNMENT_NAME).tar.gz
+
+CS140E_REL_ROOT := ..
+REPO_NAMES := 0-blinky 1-shell os
+QUESTIONS_DIRS := $(shell find . -type d -name "questions")
+
+.PHONY: all test check submission clean
+
+all:
+	@echo "usage: make [target]"
+	@echo
+	@echo "available targets:"
+	@echo "test           run tests for all targets"
+	@echo "check          ensure every question is answered"
+	@echo "submission     create submission tarball"
+	@echo "clean          clean products from all targets"
+
+test:
+	cd ttywrite && ./test.sh
+	cd stack-vec && cargo test
+	cd xmodem && cargo test
+
+check:
+	@okay=true; \
+	for qdir in $(QUESTIONS_DIRS); do \
+	    for file in "$${qdir}/"*; do \
+		    if ! [ -s "$${file}" ]; then \
+			  okay=false; \
+			  echo "Question file '$${file}' is empty."; \
+		    fi \
+	    done \
+	done; \
+	if ! $$okay; then \
+		echo "Questions remain unanswered. Aborting."; \
+		exit 1; \
+	else \
+		echo "All questions appear to be answered."; \
+	fi
+
+submission: $(SUBMIT_TAR)
+	@echo "Your submission file "$^" was successfully created."
+	@echo "Submit it at $(SUBMISSION_SITE)"
+
+.FORCE:
+$(SUBMIT_TAR): .FORCE
+	@rm -f $@
+	@cwd="$${PWD}"; \
+	for repo in $(REPO_NAMES); do \
+	    repo_path="$${cwd}/$(CS140E_REL_ROOT)/$${repo}"; \
+	    cd "$${repo_path}"; \
+	    if ! [ -z "$$(git status --porcelain)" ]; then \
+		    echo "There are uncommited changes in $${repo}! Aborting."; \
+			rm -f $@; \
+		    exit 1; \
+	    else \
+			git_files=$$(git ls-files) ; \
+			cd "$${repo_path}/.." ; \
+			for file in $$git_files; do \
+				tar -rf "$${cwd}/$@" "$${repo}/$${file}"; \
+			done \
+	    fi \
+	done
+	@gzip -f $@
+	@mv $@.gz $@
+
+clean:
+	rm -f $(SUBMIT_TAR)
+	cd ttywrite && cargo clean
+	cd stack-vec && cargo clean
+	cd xmodem && cargo clean

1-shell/ferris-wheel/compile-fail/modules-1.rs

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+// FIXME: Prevent this file from compiling! Diff budget: 1 line.
+
+mod a {
+    pub fn f() { }
+}
+
+// Do not modify this function.
+fn main() {
+    a::f();
+}

1-shell/ferris-wheel/compile-fail/move.rs

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+// FIXME: Prevent this file from compiling! Diff budget: 1 line.
+#[derive(Clone, Copy)]
+struct MyType(usize);
+
+// Note: do not modify this function.
+fn main() {
+    let x = MyType(10);
+    let y = x;
+    let z = x;
+}

1-shell/ferris-wheel/compile-pass/borrow-1.rs

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+// FIXME: Make me compile! Diff budget: 1 line.
+
+struct MyType(usize);
+
+// Do not modify this function.
+pub fn main() {
+    let x = MyType(1);
+    let y = &x;
+    let z = *y;
+}

1-shell/ferris-wheel/compile-pass/const.rs

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+// FIXME: Make me compile! Diff budget: 3 lines.
+
+const VAR: i32 = add(34, 10);
+
+fn add(a: i32, b: i32) -> i32 {
+    a + b
+}
+
+fn main() { }

1-shell/ferris-wheel/compile-pass/derive.rs

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+// FIXME: Make me compile! Diff budget: 1 line.
+enum Duration {
+    MilliSeconds(u64),
+    Seconds(u32),
+    Minutes(u16)
+}
+
+pub fn main() {
+    println!("Duration: {:?}", Duration::MilliSeconds(1200));
+
+    let x = Duration::Minutes(10);
+    let y = x;
+    let z = x;
+}

1-shell/ferris-wheel/compile-pass/feature-1.rs

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+// FIXME: Make me compile! Diff budget: 2 lines.
+// Do not modify this definition.
+enum Duration {
+    MicroSeconds(u128),
+    MilliSeconds(u64),
+    Seconds(u32),
+    Minutes(u16)
+}
+
+fn main() { }

1-shell/ferris-wheel/compile-pass/io-read-write.rs

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+// FIXME: Make me compile! Diff budget: 2 lines.
+use std::io;
+
+struct ReadWrapper<T: io::Read> {
+    inner: T
+}
+
+impl io::Read for ReadWrapper<T> {
+    fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
+        self.inner.read(buf)
+    }
+}
+
+fn main() { }

1-shell/ferris-wheel/compile-pass/lifetimes-1.rs

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+// FIXME: Make me compile! Diff budget: 1 line.
+
+struct StrWrapper<'a>(&'a str);
+
+impl<'a> StrWrapper<'a> {
+    fn inner(&self) -> &str {
+        self.0
+    }
+}
+
+// Do not modify this function.
+pub fn main() {
+    let string = "Hello!";
+    let wrapper = StrWrapper(&string);
+    let _: &'static str = wrapper.inner();
+}

1-shell/ferris-wheel/compile-pass/lifetimes-2.rs

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+// FIXME: Make me compile! Diff budget: 3 lines.
+
+// Do not modify the inner type &'a T.
+struct RefWrapper<T>(&'a T);
+
+impl RefWrapper {
+    fn inner(&self) -> &T {
+        self.0
+    }
+}
+
+// Do not modify this function.
+pub fn main() {
+    let x = 1;
+    let mut r = &x;
+    r = RefWrapper(r).inner();
+}

1-shell/ferris-wheel/compile-pass/lifetimes-3.rs

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+// FIXME: Make me compile! Diff budget: 2 lines.
+
+// Do not modify the inner type &'a T.
+struct RefWrapper<T>(&'a T);
+
+// Do not modify the inner type &'b RefWrapper<'a, T>.
+struct RefWrapperWrapper<T>(&'b RefWrapper<'a, T>);
+
+pub fn main() { }

1-shell/ferris-wheel/compile-pass/lifetimes-4.rs

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+// FIXME: Make me compile! Diff budget: 3 lines.
+
+// Do not modify the inner type &'a T.
+struct RefWrapper<T>(&'a T);
+
+// Do not modify the inner type &'b RefWrapper<'a, T>.
+struct RefWrapperWrapper<T>(&'b RefWrapper<'a, T>);
+
+impl RefWrapperWrapper {
+    fn inner(&self) -> &'a T {
+        (self.0).0
+    }
+}
+
+pub fn main() { }

1-shell/ferris-wheel/compile-pass/mutability-1.rs

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+// FIXME: Make me compile! Diff budget: 1 line.
+fn make_1(v: &u32) {
+    *v = 1;
+}
+
+pub fn main() { }

1-shell/ferris-wheel/compile-pass/mutability-2.rs

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+// FIXME: Make me compile! Diff budget: 1 line.
+
+pub fn main() {
+    let x = 10;
+    *x = 20;
+}

1-shell/ferris-wheel/compile-pass/mutability-3.rs

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+// FIXME: Make me compile! Diff budget: 1 line.
+
+pub fn main() {
+    let x = 10;
+    x = 20;
+}