Snap for 6435660 from 19811483df3157e4b67243eb121c0d98cf20a239 to sdk-release
Change-Id: Ie6d2389925cf2cf891545b7700868c57d202c417
diff --git a/.cargo_vcs_info.json b/.cargo_vcs_info.json
new file mode 100644
index 0000000..28d7b30
--- /dev/null
+++ b/.cargo_vcs_info.json
@@ -0,0 +1,5 @@
+{
+ "git": {
+ "sha1": "5feb37605c9ec2d237651dbd669e3527566a839e"
+ }
+}
diff --git a/Android.bp b/Android.bp
new file mode 100644
index 0000000..c519e1f
--- /dev/null
+++ b/Android.bp
@@ -0,0 +1,23 @@
+// This file is generated by cargo2android.py.
+
+rust_proc_macro {
+ name: "libpaste_impl",
+ crate_name: "paste_impl",
+ srcs: ["src/lib.rs"],
+ edition: "2018",
+ rlibs: [
+ "libproc_macro2",
+ "libquote",
+ "libsyn",
+ ],
+ proc_macros: [
+ "libproc_macro_hack",
+ ],
+}
+
+// dependent_library ["feature_list"]
+// proc-macro-hack-0.5.12
+// proc-macro2-1.0.9 "default,proc-macro"
+// quote-1.0.3 "default,proc-macro"
+// syn-1.0.16 "clone-impls,default,derive,parsing,printing,proc-macro,quote"
+// unicode-xid-0.2.0 "default"
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..90aff3f
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,38 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies
+#
+# If you believe there's an error in this file please file an
+# issue against the rust-lang/cargo repository. If you're
+# editing this file be aware that the upstream Cargo.toml
+# will likely look very different (and much more reasonable)
+
+[package]
+edition = "2018"
+name = "paste-impl"
+version = "0.1.10"
+authors = ["David Tolnay <dtolnay@gmail.com>"]
+description = "Implementation detail of the `paste` crate"
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/dtolnay/paste"
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
+
+[lib]
+proc-macro = true
+[dependencies.proc-macro-hack]
+version = "0.5"
+
+[dependencies.proc-macro2]
+version = "1.0"
+
+[dependencies.quote]
+version = "1.0"
+
+[dependencies.syn]
+version = "1.0"
+[badges.travis-ci]
+repository = "dtolnay/paste"
diff --git a/Cargo.toml.orig b/Cargo.toml.orig
new file mode 100644
index 0000000..9b7a04e
--- /dev/null
+++ b/Cargo.toml.orig
@@ -0,0 +1,23 @@
+[package]
+name = "paste-impl"
+version = "0.1.10"
+authors = ["David Tolnay <dtolnay@gmail.com>"]
+edition = "2018"
+license = "MIT OR Apache-2.0"
+description = "Implementation detail of the `paste` crate"
+repository = "https://github.com/dtolnay/paste"
+
+[lib]
+proc-macro = true
+
+[badges]
+travis-ci = { repository = "dtolnay/paste" }
+
+[dependencies]
+proc-macro-hack = "0.5"
+proc-macro2 = "1.0"
+quote = "1.0"
+syn = "1.0"
+
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
diff --git a/LICENSE b/LICENSE
new file mode 120000
index 0000000..6b579aa
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1 @@
+LICENSE-APACHE
\ No newline at end of file
diff --git a/LICENSE-APACHE b/LICENSE-APACHE
new file mode 100644
index 0000000..16fe87b
--- /dev/null
+++ b/LICENSE-APACHE
@@ -0,0 +1,201 @@
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
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+ "Legal Entity" shall mean the union of the acting entity and all
+ other entities that control, are controlled by, or are under common
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+ direction or management of such entity, whether by contract or
+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
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+ "You" (or "Your") shall mean an individual or Legal Entity
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+ "Work" shall mean the work of authorship, whether in Source or
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+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
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+ of this License, Derivative Works shall not include works that remain
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+ "Contribution" shall mean any work of authorship, including
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+ communication on electronic mailing lists, source code control systems,
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+ "Contributor" shall mean Licensor and any individual or Legal Entity
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+ subsequently incorporated within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
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+4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
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+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
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+ (c) You must retain, in the Source form of any Derivative Works
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+ (d) If the Work includes a "NOTICE" text file as part of its
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+ wherever such third-party notices normally appear. The contents
+ of the NOTICE file are for informational purposes only and
+ do not modify the License. You may add Your own attribution
+ notices within Derivative Works that You distribute, alongside
+ or as an addendum to the NOTICE text from the Work, provided
+ that such additional attribution notices cannot be construed
+ as modifying the License.
+
+ You may add Your own copyright statement to Your modifications and
+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
+ Work (including but not limited to damages for loss of goodwill,
+ work stoppage, computer failure or malfunction, or any and all
+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
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+9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+ To apply the Apache License to your work, attach the following
+ boilerplate notice, with the fields enclosed by brackets "[]"
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+Copyright [yyyy] [name of copyright owner]
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/LICENSE-MIT b/LICENSE-MIT
new file mode 100644
index 0000000..815d6c0
--- /dev/null
+++ b/LICENSE-MIT
@@ -0,0 +1,25 @@
+Copyright (c) 2018
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..e289934
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,19 @@
+name: "paste-impl"
+description: "Implementation detail of the `paste` crate"
+third_party {
+ url {
+ type: HOMEPAGE
+ value: "https://crates.io/crates/paste-impl"
+ }
+ url {
+ type: GIT
+ value: "https://github.com/dtolnay/paste"
+ }
+ version: "0.1.10"
+ license_type: NOTICE
+ last_upgrade_date {
+ year: 2020
+ month: 4
+ day: 17
+ }
+}
diff --git a/MODULE_LICENSE_APACHE2 b/MODULE_LICENSE_APACHE2
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/MODULE_LICENSE_APACHE2
diff --git a/NOTICE b/NOTICE
new file mode 120000
index 0000000..7a694c9
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1 @@
+LICENSE
\ No newline at end of file
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..46fc303
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1 @@
+include platform/prebuilts/rust:/OWNERS
diff --git a/src/enum_hack.rs b/src/enum_hack.rs
new file mode 100644
index 0000000..626b265
--- /dev/null
+++ b/src/enum_hack.rs
@@ -0,0 +1,61 @@
+use std::collections::hash_map::DefaultHasher;
+use std::hash::{Hash, Hasher};
+
+use proc_macro2::{Ident, Span, TokenStream, TokenTree};
+use quote::quote;
+use syn::parse::{Parse, ParseStream, Result};
+use syn::{braced, parenthesized, parse_macro_input, Token};
+
+pub fn wrap(output: TokenStream) -> TokenStream {
+ let mut hasher = DefaultHasher::default();
+ output.to_string().hash(&mut hasher);
+ let mangled_name = format!("_paste_{}", hasher.finish());
+ let ident = Ident::new(&mangled_name, Span::call_site());
+
+ quote! {
+ #[derive(paste::EnumHack)]
+ enum #ident {
+ Value = (stringify! {
+ #output
+ }, 0).1,
+ }
+ }
+}
+
+struct EnumHack {
+ token_stream: TokenStream,
+}
+
+impl Parse for EnumHack {
+ fn parse(input: ParseStream) -> Result<Self> {
+ input.parse::<Token![enum]>()?;
+ input.parse::<Ident>()?;
+
+ let braces;
+ braced!(braces in input);
+ braces.parse::<Ident>()?;
+ braces.parse::<Token![=]>()?;
+
+ let parens;
+ parenthesized!(parens in braces);
+ parens.parse::<Ident>()?;
+ parens.parse::<Token![!]>()?;
+
+ let inner;
+ braced!(inner in parens);
+ let token_stream: TokenStream = inner.parse()?;
+
+ parens.parse::<Token![,]>()?;
+ parens.parse::<TokenTree>()?;
+ braces.parse::<Token![.]>()?;
+ braces.parse::<TokenTree>()?;
+ braces.parse::<Token![,]>()?;
+
+ Ok(EnumHack { token_stream })
+ }
+}
+
+pub fn extract(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+ let inner = parse_macro_input!(input as EnumHack);
+ proc_macro::TokenStream::from(inner.token_stream)
+}
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..b2c1e41
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,213 @@
+extern crate proc_macro;
+
+mod enum_hack;
+
+use proc_macro2::{Delimiter, Group, Ident, Punct, Spacing, Span, TokenStream, TokenTree};
+use proc_macro_hack::proc_macro_hack;
+use quote::{quote, ToTokens};
+use std::iter::FromIterator;
+use syn::parse::{Error, Parse, ParseStream, Parser, Result};
+use syn::{parenthesized, parse_macro_input, Lit, LitStr, Token};
+
+#[proc_macro]
+pub fn item(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+ let input = parse_macro_input!(input as PasteInput);
+ proc_macro::TokenStream::from(input.expanded)
+}
+
+#[proc_macro]
+pub fn item_with_macros(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+ let input = parse_macro_input!(input as PasteInput);
+ proc_macro::TokenStream::from(enum_hack::wrap(input.expanded))
+}
+
+#[proc_macro_hack]
+pub fn expr(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+ let input = parse_macro_input!(input as PasteInput);
+ let output = input.expanded;
+ proc_macro::TokenStream::from(quote!({ #output }))
+}
+
+#[doc(hidden)]
+#[proc_macro_derive(EnumHack)]
+pub fn enum_hack(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+ enum_hack::extract(input)
+}
+
+struct PasteInput {
+ expanded: TokenStream,
+}
+
+impl Parse for PasteInput {
+ fn parse(input: ParseStream) -> Result<Self> {
+ let mut expanded = TokenStream::new();
+ while !input.is_empty() {
+ match input.parse()? {
+ TokenTree::Group(group) => {
+ let delimiter = group.delimiter();
+ let content = group.stream();
+ let span = group.span();
+ if delimiter == Delimiter::Bracket && is_paste_operation(&content) {
+ let segments = parse_bracket_as_segments.parse2(content)?;
+ let pasted = paste_segments(span, &segments)?;
+ pasted.to_tokens(&mut expanded);
+ } else if delimiter == Delimiter::None && is_single_ident(&content) {
+ content.to_tokens(&mut expanded);
+ } else {
+ let nested = PasteInput::parse.parse2(content)?;
+ let mut group = Group::new(delimiter, nested.expanded);
+ group.set_span(span);
+ group.to_tokens(&mut expanded);
+ }
+ }
+ other => other.to_tokens(&mut expanded),
+ }
+ }
+ Ok(PasteInput { expanded })
+ }
+}
+
+fn is_paste_operation(input: &TokenStream) -> bool {
+ let input = input.clone();
+ parse_bracket_as_segments.parse2(input).is_ok()
+}
+
+fn is_single_ident(input: &TokenStream) -> bool {
+ let mut has_ident = false;
+ for tt in input.clone() {
+ match tt {
+ TokenTree::Ident(_) if !has_ident => has_ident = true,
+ _ => return false,
+ }
+ }
+ has_ident
+}
+
+enum Segment {
+ String(String),
+ Apostrophe(Span),
+ Env(LitStr),
+ Modifier(Token![:], Ident),
+}
+
+fn parse_bracket_as_segments(input: ParseStream) -> Result<Vec<Segment>> {
+ input.parse::<Token![<]>()?;
+
+ let segments = parse_segments(input)?;
+
+ input.parse::<Token![>]>()?;
+ if !input.is_empty() {
+ return Err(input.error("invalid input"));
+ }
+ Ok(segments)
+}
+
+fn parse_segments(input: ParseStream) -> Result<Vec<Segment>> {
+ let mut segments = Vec::new();
+ while !(input.is_empty() || input.peek(Token![>])) {
+ match input.parse()? {
+ TokenTree::Ident(ident) => {
+ let mut fragment = ident.to_string();
+ if fragment.starts_with("r#") {
+ fragment = fragment.split_off(2);
+ }
+ if fragment == "env" && input.peek(Token![!]) {
+ input.parse::<Token![!]>()?;
+ let arg;
+ parenthesized!(arg in input);
+ let var: LitStr = arg.parse()?;
+ segments.push(Segment::Env(var));
+ } else {
+ segments.push(Segment::String(fragment));
+ }
+ }
+ TokenTree::Literal(lit) => {
+ let value = match syn::parse_str(&lit.to_string())? {
+ Lit::Str(string) => string.value().replace('-', "_"),
+ Lit::Int(_) => lit.to_string(),
+ _ => return Err(Error::new(lit.span(), "unsupported literal")),
+ };
+ segments.push(Segment::String(value));
+ }
+ TokenTree::Punct(punct) => match punct.as_char() {
+ '_' => segments.push(Segment::String("_".to_string())),
+ '\'' => segments.push(Segment::Apostrophe(punct.span())),
+ ':' => segments.push(Segment::Modifier(Token), input.parse()?)),
+ _ => return Err(Error::new(punct.span(), "unexpected punct")),
+ },
+ TokenTree::Group(group) => {
+ if group.delimiter() == Delimiter::None {
+ let nested = parse_segments.parse2(group.stream())?;
+ segments.extend(nested);
+ } else {
+ return Err(Error::new(group.span(), "unexpected token"));
+ }
+ }
+ }
+ }
+ Ok(segments)
+}
+
+fn paste_segments(span: Span, segments: &[Segment]) -> Result<TokenStream> {
+ let mut evaluated = Vec::new();
+ let mut is_lifetime = false;
+
+ for segment in segments {
+ match segment {
+ Segment::String(segment) => {
+ evaluated.push(segment.clone());
+ }
+ Segment::Apostrophe(span) => {
+ if is_lifetime {
+ return Err(Error::new(*span, "unexpected lifetime"));
+ }
+ is_lifetime = true;
+ }
+ Segment::Env(var) => {
+ let resolved = match std::env::var(var.value()) {
+ Ok(resolved) => resolved,
+ Err(_) => {
+ return Err(Error::new(var.span(), "no such env var"));
+ }
+ };
+ let resolved = resolved.replace('-', "_");
+ evaluated.push(resolved);
+ }
+ Segment::Modifier(colon, ident) => {
+ let span = quote!(#colon #ident);
+ let last = match evaluated.pop() {
+ Some(last) => last,
+ None => return Err(Error::new_spanned(span, "unexpected modifier")),
+ };
+ if ident == "lower" {
+ evaluated.push(last.to_lowercase());
+ } else if ident == "upper" {
+ evaluated.push(last.to_uppercase());
+ } else if ident == "snake" {
+ let mut acc = String::new();
+ let mut prev = '_';
+ for ch in last.chars() {
+ if ch.is_uppercase() && prev != '_' {
+ acc.push('_');
+ }
+ acc.push(ch);
+ prev = ch;
+ }
+ evaluated.push(acc.to_lowercase());
+ } else {
+ return Err(Error::new_spanned(span, "unsupported modifier"));
+ }
+ }
+ }
+ }
+
+ let pasted = evaluated.into_iter().collect::<String>();
+ let ident = TokenTree::Ident(Ident::new(&pasted, span));
+ let tokens = if is_lifetime {
+ let apostrophe = TokenTree::Punct(Punct::new('\'', Spacing::Joint));
+ vec![apostrophe, ident]
+ } else {
+ vec![ident]
+ };
+ Ok(TokenStream::from_iter(tokens))
+}
