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< ol class = "chapter" > < li class = "chapter-item expanded " > < a href = "intro.html" > < strong aria-hidden = "true" > 1.< / strong > Introduction< / a > < / li > < li class = "chapter-item expanded " > < a href = "idioms/index.html" > < strong aria-hidden = "true" > 2.< / strong > Idioms< / a > < / li > < li > < ol class = "section" > < li class = "chapter-item expanded " > < a href = "idioms/coercion-arguments.html" > < strong aria-hidden = "true" > 2.1.< / strong > Use borrowed types for arguments< / a > < / li > < li class = "chapter-item expanded " > < a href = "idioms/concat-format.html" > < strong aria-hidden = "true" > 2.2.< / strong > Concatenating Strings with format!< / a > < / li > < li class = "chapter-item expanded " > < a href = "idioms/ctor.html" > < strong aria-hidden = "true" > 2.3.< / strong > Constructor< / a > < / li > < li class = "chapter-item expanded " > < a href = "idioms/default.html" > < strong aria-hidden = "true" > 2.4.< / strong > The Default Trait< / a > < / li > < li class = "chapter-item expanded " > < a href = "idioms/deref.html" > < strong aria-hidden = "true" > 2.5.< / strong > Collections Are Smart Pointers< / a > < / li > < li class = "chapter-item expanded " > < a href = "idioms/dtor-finally.html" > < strong aria-hidden = "true" > 2.6.< / strong > Finalisation in Destructors< / a > < / li > < li class = "chapter-item expanded " > < a href = "idioms/mem-replace.html" > < strong aria-hidden = "true" > 2.7.< / strong > mem::{take(), replace()}< / a > < / li > < li class = "chapter-item expanded " > < a href = "idioms/on-stack-dyn-dispatch.html" > < strong aria-hidden = "true" > 2.8.< / strong > On-Stack Dynamic Dispatch< / a > < / li > < li class = "chapter-item expanded " > < a href = "idioms/ffi/intro.html" > < strong aria-hidden = "true" > 2.9.< / strong > Foreign function interface (FFI)< / a > < / li > < li > < ol class = "section" > < li class = "chapter-item expanded " > < a href = "idioms/ffi/errors.html" > < strong aria-hidden = "true" > 2.9.1.< / strong > Idiomatic Errors< / a > < / li > < li class = "chapter-item expanded " > < a href = "idioms/ffi/accepting-strings.html" > < strong aria-hidden = "true" > 2.9.2.< / strong > Accepting Strings< / a > < / li > < li class = "chapter-item expanded " > < a href = "idioms/ffi/passing-strings.html" > < strong aria-hidden = "true" > 2.9.3.< / strong > Passing Strings< / a > < / li > < / ol > < / li > < li class = "chapter-item expanded " > < a href = "idioms/option-iter.html" > < strong aria-hidden = "true" > 2.10.< / strong > Iterating over an Option< / a > < / li > < li class = "chapter-item expanded " > < a href = "idioms/pass-var-to-closure.html" > < strong aria-hidden = "true" > 2.11.< / strong > Pass Variables to Closure< / a > < / li > < li class = "chapter-item expanded " > < a href = "idioms/priv-extend.html" > < strong aria-hidden = "true" > 2.12.< / strong > Privacy For Extensibility< / a > < / li > < li class = "chapter-item expanded " > < a href = "idioms/rustdoc-init.html" > < strong aria-hidden = "true" > 2.13.< / strong > Easy doc initialization< / a > < / li > < li class = "chapter-item expanded " > < a href = "idioms/temporary-mutability.html" > < strong aria-hidden = "true" > 2.14.< / strong > Temporary mutability< / a > < / li > < / ol > < / li > < li class = "chapter-item expanded " > < a href = "patterns/index.html" > < strong aria-hidden = "true" > 3.< / strong > Design Patterns< / a > < / li > < li > < ol class = "section" > < li class = "chapter-item expanded " > < a href = "patterns/behavioural/intro.html" > < strong aria-hidden = "true" > 3.1.< / strong > Behavioural< / a > < / li > < li > < ol class = "section" > < li class = "chapter-item expanded " > < a href = "patterns/behavioural/command.html" > < strong aria-hidden = "true" > 3.1.1.< / strong > Command< / a > < / li > < li class = "chapter-item expanded " > < a href = "patterns/behavioural/interpreter.html" > < strong aria-hidden = "true" > 3.1.2.< / strong > Interpreter< / a > < / li > < li class = "chapter-item expanded " > < a href = "patterns/behavioural/newtype.html" > < strong aria-hidden = "true" > 3.1.3.< / strong > Newtype< / a > < / li > < li class = "chapter-item expanded " > < a href = "patterns/behavioural/RAII.html" > < strong aria-hidden = "true" > 3.1.4.< / strong > RAII Guards< / a > < / li > < li class = "chapter-item expanded " > < a href = "patterns/behavioural/strategy.html" > < strong aria-hidden = "true" > 3.1.5.< / strong > Strategy< / a > < / li > < li class = "chapter-item expanded " > < a href = "patterns/behavioural/visitor.html" > < strong aria-hidden = "true" > 3.1.6.< / strong > Visitor< / a > < / li > < / ol > < / li > < li class = "chapter-item expanded " > < a href = "patterns/creational/intro.html" > < strong aria-hidden = "true" > 3.2.< / strong > Creational<
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< h1 id = "introduction" > < a class = "header" href = "#introduction" > Introduction< / a > < / h1 >
< h2 id = "participation" > < a class = "header" href = "#participation" > Participation< / a > < / h2 >
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< p > If you are interested in contributing to this book, check out the
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< a href = "https://github.com/rust-unofficial/patterns/blob/master/CONTRIBUTING.md" > contribution guidelines< / a > .< / p >
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< h2 id = "design-patterns" > < a class = "header" href = "#design-patterns" > Design patterns< / a > < / h2 >
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< p > When developing programs, we have to solve many problems.
A program can be viewed as a solution to a problem.
It can also be viewed as a collection of solutions to many different problems.
All of these solutions work together to solve a bigger problem.< / p >
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< h2 id = "design-patterns-in-rust" > < a class = "header" href = "#design-patterns-in-rust" > Design patterns in Rust< / a > < / h2 >
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< p > There are many problems that share the same form.
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Due to the fact that Rust is not object-oriented design patterns vary with
respect to other object-oriented programming languages.
While the details are different, since they have the same form they can be
solved using the same fundamental methods:< / p >
< ul >
< li > < a href = "./patterns/index.html" > Design patterns< / a > are methods to solve common problems
when writing software.< / li >
< li > < a href = "./anti_patterns/index.html" > Anti-patterns< / a > are methods to solve these same
common problems. However, while design patterns give us benefits,
anti-patterns create more problems.< / li >
< li > < a href = "./idioms/index.html" > Idioms< / a > are guidelines to follow when coding.
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They are social norms of the community.
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You can break them, but if you do you should have a good reason for it.< / li >
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< p > TODO: Mention why Rust is a bit special - functional elements, type system,
borrow checker< / p >
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