avoid linting `ptr_arg` if `.capacity()` is called. Also suggest removing `.as_str()` where applicable.
THis fixes #2070. Also fixes a few formatting mishaps
This commit is contained in:
Andre Bogus
parent
c3df3bc681
commit
1e0268fda8
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@ -9,8 +9,8 @@ dependencies = [
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"quine-mc_cluskey 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
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"regex-syntax 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"semver 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_derive 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.15 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_derive 1.0.15 (registry+https://github.com/rust-lang/crates.io-index)",
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"toml 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
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"unicode-normalization 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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@ -28,22 +28,22 @@ name = "backtrace"
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version = "0.3.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"backtrace-sys 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
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"backtrace-sys 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
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"cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"dbghelp-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
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"rustc-demangle 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "backtrace-sys"
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version = "0.1.12"
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version = "0.1.14"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"gcc 0.3.53 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
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"cc 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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@ -61,11 +61,16 @@ name = "cargo_metadata"
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version = "0.2.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"serde 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_derive 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.15 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_derive 1.0.15 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_json 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "cc"
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version = "1.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "cfg-if"
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version = "0.1.2"
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@ -82,8 +87,8 @@ dependencies = [
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"duct 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
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"regex 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_derive 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.15 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_derive 1.0.15 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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@ -137,11 +142,6 @@ dependencies = [
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"backtrace 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "gcc"
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version = "0.3.53"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "getopts"
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version = "0.2.15"
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@ -157,7 +157,7 @@ dependencies = [
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[[package]]
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name = "itoa"
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version = "0.3.3"
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version = "0.3.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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@ -181,7 +181,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "libc"
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version = "0.2.30"
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version = "0.2.31"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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@ -199,7 +199,7 @@ name = "memchr"
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version = "1.0.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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@ -209,7 +209,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
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"void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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@ -289,12 +289,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "serde"
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version = "1.0.14"
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version = "1.0.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "serde_derive"
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version = "1.0.14"
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version = "1.0.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
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@ -317,9 +317,9 @@ version = "1.0.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"dtoa 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"itoa 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"itoa 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
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"num-traits 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.15 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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@ -328,7 +328,7 @@ version = "0.2.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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@ -364,7 +364,7 @@ name = "toml"
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version = "0.4.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"serde 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.15 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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@ -408,10 +408,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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[metadata]
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"checksum aho-corasick 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)" = "500909c4f87a9e52355b26626d890833e9e1d53ac566db76c36faa984b889699"
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"checksum backtrace 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "99f2ce94e22b8e664d95c57fff45b98a966c2252b60691d0b7aeeccd88d70983"
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"checksum backtrace-sys 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "afccc5772ba333abccdf60d55200fa3406f8c59dcf54d5f7998c9107d3799c7c"
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"checksum backtrace-sys 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "c63ea141ef8fdb10409d0f5daf30ac51f84ef43bff66f16627773d2a292cd189"
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"checksum bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aad18937a628ec6abcd26d1489012cc0e18c21798210f491af69ded9b881106d"
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"checksum bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4efd02e230a02e18f92fc2735f44597385ed02ad8f831e7c1c1156ee5e1ab3a5"
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"checksum cargo_metadata 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "be1057b8462184f634c3a208ee35b0f935cfd94b694b26deadccd98732088d7b"
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"checksum cc 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7db2f146208d7e0fbee761b09cd65a7f51ccc38705d4e7262dad4d73b12a76b1"
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"checksum cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d4c819a1287eb618df47cc647173c5c4c66ba19d888a6e50d605672aed3140de"
|
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"checksum compiletest_rs 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)" = "2741d378feb7a434dba54228c89a70b4e427fee521de67cdda3750b8a0265f5a"
|
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"checksum dbghelp-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "97590ba53bcb8ac28279161ca943a924d1fd4a8fb3fa63302591647c4fc5b850"
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@ -419,14 +420,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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"checksum duct 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e45aa15fe0a8a8f511e6d834626afd55e49b62e5c8802e18328a87e8a8f6065c"
|
||||
"checksum either 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "18785c1ba806c258137c937e44ada9ee7e69a37e3c72077542cd2f069d78562a"
|
||||
"checksum error-chain 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6930e04918388a9a2e41d518c25cf679ccafe26733fb4127dbf21993f2575d46"
|
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"checksum gcc 0.3.53 (registry+https://github.com/rust-lang/crates.io-index)" = "e8310f7e9c890398b0e80e301c4f474e9918d2b27fca8f48486ca775fa9ffc5a"
|
||||
"checksum getopts 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)" = "65922871abd2f101a2eb0eaebadc66668e54a87ad9c3dd82520b5f86ede5eff9"
|
||||
"checksum itertools 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "22c285d60139cf413244894189ca52debcfd70b57966feed060da76802e415a0"
|
||||
"checksum itoa 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ac17257442c2ed77dbc9fd555cf83c58b0c7f7d0e8f2ae08c0ac05c72842e1f6"
|
||||
"checksum itoa 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8324a32baf01e2ae060e9de58ed0bc2320c9a2833491ee36cd3b4c414de4db8c"
|
||||
"checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
|
||||
"checksum lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "3b37545ab726dd833ec6420aaba8231c5b320814b9029ad585555d2a03e94fbf"
|
||||
"checksum lazycell 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3b585b7a6811fb03aa10e74b278a0f00f8dd9b45dc681f148bb29fa5cb61859b"
|
||||
"checksum libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)" = "2370ca07ec338939e356443dac2296f581453c35fe1e3a3ed06023c49435f915"
|
||||
"checksum libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)" = "d1419b2939a0bc44b77feb34661583c7546b532b192feab36249ab584b86856c"
|
||||
"checksum log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "880f77541efa6e5cc74e76910c9884d9859683118839d6a1dc3b11e63512565b"
|
||||
"checksum matches 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "100aabe6b8ff4e4a7e32c1c13523379802df0772b82466207ac25b013f193376"
|
||||
"checksum memchr 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1dbccc0e46f1ea47b9f17e6d67c5a96bd27030519c519c9c91327e31275a47b4"
|
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|
|
@ -442,8 +442,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
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"checksum rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)" = "dcf128d1287d2ea9d80910b5f1120d0b8eede3fbf1abe91c40d39ea7d51e6fda"
|
||||
"checksum semver 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a3186ec9e65071a2095434b1f5bb24838d4e8e130f584c790f6033c79943537"
|
||||
"checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
|
||||
"checksum serde 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)" = "bcb6a7637a47663ee073391a139ed07851f27ed2532c2abc88c6bf27a16cdf34"
|
||||
"checksum serde_derive 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)" = "812ff66056fd9a9a5b7c119714243b0862cf98340e7d4b5ee05a932c40d5ea6c"
|
||||
"checksum serde 1.0.15 (registry+https://github.com/rust-lang/crates.io-index)" = "6a7046c9d4c6c522d10b2d098f9bebe2bef227e0e74044d8c1bfcf6b476af799"
|
||||
"checksum serde_derive 1.0.15 (registry+https://github.com/rust-lang/crates.io-index)" = "1afcaae083fd1c46952a315062326bc9957f182358eb7da03b57ef1c688f7aa9"
|
||||
"checksum serde_derive_internals 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bd381f6d01a6616cdba8530492d453b7761b456ba974e98768a18cad2cd76f58"
|
||||
"checksum serde_json 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "d243424e06f9f9c39e3cd36147470fd340db785825e367625f79298a6ac6b7ac"
|
||||
"checksum shared_child 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "099b38928dbe4a0a01fcd8c233183072f14a7d126a34bed05880869be66e14cc"
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|
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@ -279,12 +279,19 @@ impl LiteralDigitGrouping {
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let fractional_part = &parts[1].chars().rev().collect::<String>();
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let _ = Self::do_lint(fractional_part)
|
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.map(|fractional_group_size| {
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let consistent = Self::parts_consistent(integral_group_size, fractional_group_size, parts[0].len(), parts[1].len());
|
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let consistent = Self::parts_consistent(integral_group_size,
|
||||
fractional_group_size,
|
||||
parts[0].len(),
|
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parts[1].len());
|
||||
if !consistent {
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||||
WarningType::InconsistentDigitGrouping.display(&digit_info.grouping_hint(), cx, &lit.span);
|
||||
WarningType::InconsistentDigitGrouping.display(&digit_info.grouping_hint(),
|
||||
cx,
|
||||
&lit.span);
|
||||
}
|
||||
})
|
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.map_err(|warning_type| warning_type.display(&digit_info.grouping_hint(), cx, &lit.span));
|
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.map_err(|warning_type| warning_type.display(&digit_info.grouping_hint(),
|
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cx,
|
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&lit.span));
|
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}
|
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})
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.map_err(|warning_type| warning_type.display(&digit_info.grouping_hint(), cx, &lit.span));
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@ -332,7 +339,8 @@ impl LiteralDigitGrouping {
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.windows(2)
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.all(|ps| ps[1] - ps[0] == group_size + 1)
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// number of digits to the left of the last group cannot be bigger than group size.
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&& (digits.len() - underscore_positions.last().expect("there's at least one element") <= group_size + 1);
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&& (digits.len() - underscore_positions.last()
|
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.expect("there's at least one element") <= group_size + 1);
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if !consistent {
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return Err(WarningType::InconsistentDigitGrouping);
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|
|
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@ -15,16 +15,7 @@
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// *rustc*'s
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// [`missing_doc`].
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//
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// [`missing_doc`]:
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// https://github.
|
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// com/rust-lang/rust/blob/d6d05904697d89099b55da3331155392f1db9c00/src/librustc_lint/builtin.
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//
|
||||
//
|
||||
//
|
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//
|
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//
|
||||
//
|
||||
// rs#L246
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// [`missing_doc`]: https://github.com/rust-lang/rust/blob/d6d05904697d89099b55da3331155392f1db9c00/src/librustc_lint/builtin.rs#L246
|
||||
//
|
||||
|
||||
use rustc::hir;
|
||||
|
|
|
|||
|
|
@ -124,7 +124,8 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
|
|||
else if args.len() == 2 && match_def_path(cx.tcx, fun_id, &paths::FMT_ARGUMENTV1_NEW) {
|
||||
if let ExprPath(ref qpath) = args[1].node {
|
||||
if let Some(def_id) = opt_def_id(cx.tables.qpath_def(qpath, args[1].hir_id)) {
|
||||
if match_def_path(cx.tcx, def_id, &paths::DEBUG_FMT_METHOD) && !is_in_debug_impl(cx, expr) && is_expn_of(expr.span, "panic").is_none() {
|
||||
if match_def_path(cx.tcx, def_id, &paths::DEBUG_FMT_METHOD)
|
||||
&& !is_in_debug_impl(cx, expr) && is_expn_of(expr.span, "panic").is_none() {
|
||||
span_lint(cx, USE_DEBUG, args[0].span, "use of `Debug`-based formatting");
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,5 +1,6 @@
|
|||
//! Checks for usage of `&Vec[_]` and `&String`.
|
||||
|
||||
use std::borrow::Cow;
|
||||
use rustc::hir::*;
|
||||
use rustc::hir::intravisit::{walk_expr, NestedVisitorMap, Visitor};
|
||||
use rustc::hir::map::NodeItem;
|
||||
|
|
@ -163,44 +164,48 @@ fn check_fn(cx: &LateContext, decl: &FnDecl, fn_id: NodeId, opt_body_id: Option<
|
|||
], {
|
||||
ty_snippet = snippet_opt(cx, parameters.types[0].span);
|
||||
});
|
||||
let spans = get_spans(cx, opt_body_id, idx, "to_owned");
|
||||
span_lint_and_then(
|
||||
cx,
|
||||
PTR_ARG,
|
||||
arg.span,
|
||||
"writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used \
|
||||
with non-Vec-based slices.",
|
||||
|db| {
|
||||
if let Some(ref snippet) = ty_snippet {
|
||||
if let Ok(spans) = get_spans(cx, opt_body_id, idx, &[("clone", ".to_owned()")]) {
|
||||
span_lint_and_then(
|
||||
cx,
|
||||
PTR_ARG,
|
||||
arg.span,
|
||||
"writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used \
|
||||
with non-Vec-based slices.",
|
||||
|db| {
|
||||
if let Some(ref snippet) = ty_snippet {
|
||||
db.span_suggestion(arg.span,
|
||||
"change this to",
|
||||
format!("&[{}]", snippet));
|
||||
}
|
||||
for (clonespan, suggestion) in spans {
|
||||
db.span_suggestion(clonespan,
|
||||
&snippet_opt(cx, clonespan).map_or("change the call to".into(),
|
||||
|x| Cow::Owned(format!("change `{}` to", x))),
|
||||
suggestion.into());
|
||||
}
|
||||
}
|
||||
);
|
||||
}
|
||||
} else if match_type(cx, ty, &paths::STRING) {
|
||||
if let Ok(spans) = get_spans(cx, opt_body_id, idx, &[("clone", ".to_string()"), ("as_str", "")]) {
|
||||
span_lint_and_then(
|
||||
cx,
|
||||
PTR_ARG,
|
||||
arg.span,
|
||||
"writing `&String` instead of `&str` involves a new object where a slice will do.",
|
||||
|db| {
|
||||
db.span_suggestion(arg.span,
|
||||
"change this to",
|
||||
format!("&[{}]", snippet));
|
||||
"&str".into());
|
||||
for (clonespan, suggestion) in spans {
|
||||
db.span_suggestion_short(clonespan,
|
||||
&snippet_opt(cx, clonespan).map_or("change the call to".into(),
|
||||
|x| Cow::Owned(format!("change `{}` to", x))),
|
||||
suggestion.into());
|
||||
}
|
||||
}
|
||||
for (clonespan, suggestion) in spans {
|
||||
db.span_suggestion(clonespan,
|
||||
"change the `.clone()` to",
|
||||
suggestion);
|
||||
}
|
||||
}
|
||||
);
|
||||
} else if match_type(cx, ty, &paths::STRING) {
|
||||
let spans = get_spans(cx, opt_body_id, idx, "to_string");
|
||||
span_lint_and_then(
|
||||
cx,
|
||||
PTR_ARG,
|
||||
arg.span,
|
||||
"writing `&String` instead of `&str` involves a new object where a slice will do.",
|
||||
|db| {
|
||||
db.span_suggestion(arg.span,
|
||||
"change this to",
|
||||
"&str".into());
|
||||
for (clonespan, suggestion) in spans {
|
||||
db.span_suggestion_short(clonespan,
|
||||
"change the `.clone` to ",
|
||||
suggestion);
|
||||
}
|
||||
}
|
||||
);
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -229,38 +234,50 @@ fn check_fn(cx: &LateContext, decl: &FnDecl, fn_id: NodeId, opt_body_id: Option<
|
|||
}
|
||||
}
|
||||
|
||||
fn get_spans(cx: &LateContext, opt_body_id: Option<BodyId>, idx: usize, fn_name: &'static str) -> Vec<(Span, String)> {
|
||||
fn get_spans(cx: &LateContext, opt_body_id: Option<BodyId>, idx: usize, replacements: &'static [(&'static str, &'static str)]) -> Result<Vec<(Span, Cow<'static, str>)>, ()> {
|
||||
if let Some(body) = opt_body_id.map(|id| cx.tcx.hir.body(id)) {
|
||||
get_binding_name(&body.arguments[idx]).map_or_else(Vec::new,
|
||||
|name| extract_clone_suggestions(cx, name, fn_name, body))
|
||||
get_binding_name(&body.arguments[idx]).map_or_else(|| Ok(vec![]),
|
||||
|name| extract_clone_suggestions(cx, name, replacements, body))
|
||||
} else {
|
||||
vec![]
|
||||
Ok(vec![])
|
||||
}
|
||||
}
|
||||
|
||||
fn extract_clone_suggestions<'a, 'tcx: 'a>(cx: &LateContext<'a, 'tcx>, name: Name, fn_name: &'static str, body: &'tcx Body) -> Vec<(Span, String)> {
|
||||
fn extract_clone_suggestions<'a, 'tcx: 'a>(cx: &LateContext<'a, 'tcx>, name: Name, replace: &'static [(&'static str, &'static str)], body: &'tcx Body) -> Result<Vec<(Span, Cow<'static, str>)>, ()> {
|
||||
let mut visitor = PtrCloneVisitor {
|
||||
cx,
|
||||
name,
|
||||
fn_name,
|
||||
spans: vec![]
|
||||
replace,
|
||||
spans: vec![],
|
||||
abort: false,
|
||||
};
|
||||
visitor.visit_body(body);
|
||||
visitor.spans
|
||||
if visitor.abort { Err(()) } else { Ok(visitor.spans) }
|
||||
}
|
||||
|
||||
struct PtrCloneVisitor<'a, 'tcx: 'a> {
|
||||
cx: &'a LateContext<'a, 'tcx>,
|
||||
name: Name,
|
||||
fn_name: &'static str,
|
||||
spans: Vec<(Span, String)>,
|
||||
replace: &'static [(&'static str, &'static str)],
|
||||
spans: Vec<(Span, Cow<'static, str>)>,
|
||||
abort: bool,
|
||||
}
|
||||
|
||||
impl<'a, 'tcx: 'a> Visitor<'tcx> for PtrCloneVisitor<'a, 'tcx> {
|
||||
fn visit_expr(&mut self, expr: &'tcx Expr) {
|
||||
if self.abort { return; }
|
||||
if let ExprMethodCall(ref seg, _, ref args) = expr.node {
|
||||
if args.len() == 1 && match_var(&args[0], self.name) && seg.name == "clone" {
|
||||
self.spans.push((expr.span, format!("{}.{}()", snippet(self.cx, args[0].span, "_"), self.fn_name)));
|
||||
if args.len() == 1 && match_var(&args[0], self.name) {
|
||||
if seg.name == "capacity" {
|
||||
self.abort = true;
|
||||
return;
|
||||
}
|
||||
for &(fn_name, suffix) in self.replace {
|
||||
if seg.name == fn_name {
|
||||
self.spans.push((expr.span, snippet(self.cx, args[0].span, "_") + suffix));
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -82,7 +82,8 @@ macro_rules! define_Conf {
|
|||
#[serde(rename_all="kebab-case")]
|
||||
#[serde(deny_unknown_fields)]
|
||||
pub struct Conf {
|
||||
$(#[$doc] #[serde(default=$rust_name_str)] #[serde(with=$rust_name_str)] pub $rust_name: define_Conf!(TY $($ty)+),)+
|
||||
$(#[$doc] #[serde(default=$rust_name_str)] #[serde(with=$rust_name_str)]
|
||||
pub $rust_name: define_Conf!(TY $($ty)+),)+
|
||||
#[allow(dead_code)]
|
||||
#[serde(default)]
|
||||
third_party: Option<::toml::Value>,
|
||||
|
|
@ -91,10 +92,12 @@ macro_rules! define_Conf {
|
|||
mod $rust_name {
|
||||
use serde;
|
||||
use serde::Deserialize;
|
||||
pub fn deserialize<'de, D: serde::Deserializer<'de>>(deserializer: D) -> Result<define_Conf!(TY $($ty)+), D::Error> {
|
||||
pub fn deserialize<'de, D: serde::Deserializer<'de>>(deserializer: D)
|
||||
-> Result<define_Conf!(TY $($ty)+), D::Error> {
|
||||
type T = define_Conf!(TY $($ty)+);
|
||||
Ok(T::deserialize(deserializer).unwrap_or_else(|e| {
|
||||
::utils::conf::ERRORS.lock().expect("no threading here").push(::utils::conf::Error::Toml(e.to_string()));
|
||||
::utils::conf::ERRORS.lock().expect("no threading here")
|
||||
.push(::utils::conf::Error::Toml(e.to_string()));
|
||||
super::$rust_name()
|
||||
}))
|
||||
}
|
||||
|
|
|
|||
|
|
@ -55,3 +55,15 @@ fn str_cloned(x: &String) -> String {
|
|||
.clone();
|
||||
x.clone()
|
||||
}
|
||||
|
||||
fn false_positive_capacity(x: &Vec<u8>, y: &String) {
|
||||
let a = x.capacity();
|
||||
let b = y.clone();
|
||||
let c = y.as_str();
|
||||
}
|
||||
|
||||
fn false_positive_capacity_too(x: &String) -> String {
|
||||
if x.capacity() > 1024 { panic!("Too large!"); }
|
||||
x.clone()
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -28,11 +28,11 @@ help: change this to
|
|||
|
|
||||
40 | fn cloned(x: &[u8]) -> Vec<u8> {
|
||||
| ^^^^^
|
||||
help: change the `.clone()` to
|
||||
help: change `x.clone()` to
|
||||
|
|
||||
41 | let e = x.to_owned();
|
||||
| ^^^^^^^^^^^^
|
||||
help: change the `.clone()` to
|
||||
help: change `x.clone()` to
|
||||
|
|
||||
46 | x.to_owned()
|
||||
| ^^^^^^^^^^^^
|
||||
|
|
@ -47,18 +47,37 @@ help: change this to
|
|||
|
|
||||
49 | fn str_cloned(x: &str) -> String {
|
||||
| ^^^^
|
||||
help: change the `.clone` to
|
||||
help: change `x.clone()` to
|
||||
|
|
||||
50 | let a = x.to_string();
|
||||
| ^^^^^^^^^^^^^
|
||||
help: change the `.clone` to
|
||||
help: change `x.clone()` to
|
||||
|
|
||||
51 | let b = x.to_string();
|
||||
| ^^^^^^^^^^^^^
|
||||
help: change the `.clone` to
|
||||
help: change `x.clone()` to
|
||||
|
|
||||
56 | x.to_string()
|
||||
| ^^^^^^^^^^^^^
|
||||
|
||||
error: aborting due to 5 previous errors
|
||||
error: writing `&String` instead of `&str` involves a new object where a slice will do.
|
||||
--> $DIR/ptr_arg.rs:59:44
|
||||
|
|
||||
59 | fn false_positive_capacity(x: &Vec<u8>, y: &String) {
|
||||
| ^^^^^^^
|
||||
|
|
||||
help: change this to
|
||||
|
|
||||
59 | fn false_positive_capacity(x: &Vec<u8>, y: &str) {
|
||||
| ^^^^
|
||||
help: change `y.clone()` to
|
||||
|
|
||||
61 | let b = y.to_string();
|
||||
| ^^^^^^^^^^^^^
|
||||
help: change `y.as_str()` to
|
||||
|
|
||||
62 | let c = y;
|
||||
| ^
|
||||
|
||||
error: aborting due to 6 previous errors
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue