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_This PR is being continued from https://github.com/paritytech/polkadot-sdk/pull/2206, which was closed when the developer_hub was merged._ closes https://github.com/paritytech/polkadot-sdk-docs/issues/44 --- # Description This PR adds a reference document to the `developer-hub` crate (see https://github.com/paritytech/polkadot-sdk/pull/2102). This specific reference document covers defensive programming practices common within the context of developing a runtime with Substrate. In particular, this covers the following areas: - Default behavior of how Rust deals with numbers in general - How to deal with floating point numbers in runtime / fixed point arithmetic - How to deal with Integer overflows - General "safe math" / defensive programming practices for common pallet development scenarios - Defensive traits that exist within Substrate, i.e., `defensive_saturating_add `, `defensive_unwrap_or` - More general defensive programming examples (keep it concise) - Link to relevant examples where these practices are actually in production / being used - Unwrapping (or rather lack thereof) 101 todo -- - [x] Apply feedback from previous PR - [x] This may warrant a PR to append some of these docs to `sp_arithmetic` --------- Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> Co-authored-by: Gonçalo Pestana <g6pestana@gmail.com> Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com> Co-authored-by: Francisco Aguirre <franciscoaguirreperez@gmail.com> Co-authored-by: Radha <86818441+DrW3RK@users.noreply.github.com>
54 lines
1.3 KiB
TOML
54 lines
1.3 KiB
TOML
[package]
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name = "sp-arithmetic"
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version = "23.0.0"
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authors.workspace = true
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edition.workspace = true
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license = "Apache-2.0"
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homepage = "https://substrate.io"
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repository.workspace = true
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description = "Minimal fixed point arithmetic primitives and types for runtime."
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documentation = "https://docs.rs/sp-arithmetic"
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readme = "README.md"
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[lints]
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workspace = true
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[package.metadata.docs.rs]
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targets = ["x86_64-unknown-linux-gnu"]
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[dependencies]
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codec = { package = "parity-scale-codec", version = "3.6.1", default-features = false, features = [
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"derive",
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"max-encoded-len",
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] }
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integer-sqrt = "0.1.2"
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num-traits = { version = "0.2.17", default-features = false }
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scale-info = { version = "2.10.0", default-features = false, features = ["derive"] }
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serde = { features = ["alloc", "derive"], optional = true, workspace = true }
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static_assertions = "1.1.0"
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sp-std = { path = "../std", default-features = false }
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docify = "0.2.7"
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[dev-dependencies]
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criterion = "0.4.0"
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primitive-types = "0.12.0"
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sp-crypto-hashing = { path = "../crypto/hashing" }
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rand = "0.8.5"
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[features]
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default = ["std"]
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std = [
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"codec/std",
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"num-traits/std",
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"scale-info/std",
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"serde/std",
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"sp-crypto-hashing/std",
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"sp-std/std",
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]
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# Serde support without relying on std features.
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serde = ["dep:serde", "scale-info/serde"]
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[[bench]]
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name = "bench"
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harness = false
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