initial commit

Author: HerringtonDarkholme

.gitignore

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+/target
+node_modules
+
+# IDEs
+/.idea
+
+node_modules
+.DS_Store
+dist
+dist-ssr
+*.local
+
+# Created by https://www.toptal.com/developers/gitignore/api/node
+# Edit at https://www.toptal.com/developers/gitignore?templates=node
+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# TypeScript v1 declaration files
+typings/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+
+# Next.js build output
+.next
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# End of https://www.toptal.com/developers/gitignore/api/node
+
+
+#Added by cargo
+
+/target
+Cargo.lock
+
+*.node

.gitmodules

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+[submodule "tree-sitter-typescript"]
+	path = tree-sitter-typescript
+	url = [email protected]:tree-sitter/tree-sitter-typescript.git

Cargo.toml

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+[package]
+name = "semgrep-rs"
+version = "0.1.0"
+authors = ["Herrington Darkholme <[email protected]>"]
+edition = "2018"
+description = "sem grep in Rs"
+keywords = ["ast", "pattern match", "codemod"]
+license = "MIT"
+repository = "https://github.com/HerringtonDarkholme/semgrep"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+tree-sitter = "0.20.6"
+[build-dependencies]
+cc="*"

README.md

@@ -1 +1,14 @@
-# semgreprs
+# Pattern Matcher
+1. Tree Pattern
+1. Node Kind
+
+# Metavariable Matcher
+1. Regex
+2. Pattern
+
+# Rule
+1. patterns
+2. patterns either
+3. pattern inside
+4. pattern-inside
+5. pattern-not-inside

build.rs

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+use std::path::PathBuf;
+
+fn main() {
+    let dir: PathBuf = ["tree-sitter-typescript", "tsx", "src"].iter().collect();
+
+    cc::Build::new()
+        .include(&dir)
+        .flag_if_supported("-Wno-unused-parameter")
+        .flag_if_supported("-Wno-unused-but-set-variable")
+        .flag_if_supported("-Wno-trigraphs")
+        .file(dir.join("parser.c"))
+        .file(dir.join("scanner.c"))
+        .compile("tree-sitter-typescript");
+}

src/language.rs

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+pub trait Language {
+    fn skippable_kind_ids() -> &'static [u16];
+    fn gen_meta_varaible(meta_var_source: &str) -> String;
+}

src/lib.rs

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+use std::ops::{Deref, DerefMut};
+use std::rc::Rc;
+
+mod ts_parser;
+mod language;
+mod matcher;
+mod meta_var;
+mod node;
+mod pattern;
+pub mod rule;
+
+pub use pattern::Pattern;
+pub use node::Node;
+pub use meta_var::MetaVarMatcher;
+
+pub struct Semgrep {
+    root: Root,
+}
+
+pub struct Root {
+    inner: ts_parser::Tree,
+    source: Rc<String>,
+}
+
+impl Root {
+    fn new(src: &str) -> Self {
+        Self {
+            inner: ts_parser::parse(src),
+            source: Rc::new(src.into()),
+        }
+    }
+    pub fn root(&self) -> Node {
+        Node {
+            inner: self.inner.root_node(),
+            source: &self.source,
+        }
+    }
+}
+
+// creational API
+impl Semgrep {
+    pub fn new<S: AsRef<str>>(source: S) -> Self {
+        Self {
+            root: Root::new(source.as_ref()),
+        }
+    }
+    pub fn generate(_n: &Node) -> String {
+        todo!()
+    }
+}
+
+impl Deref for Semgrep {
+    type Target = Root;
+    fn deref(&self) -> &Self::Target {
+        &self.root
+    }
+}
+impl DerefMut for Semgrep {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.root
+    }
+}
+
+#[cfg(test)]
+mod test {
+    /*
+    use super::*;
+    #[test]
+    fn test_replace() {
+    let mut node = Semgrep::new("var a = 1;");
+    node.replace("var $_$ = $_$", "let $_$ = $_$");
+    let replaced = Semgrep::generate(&node);
+    assert_eq!(replaced, "let a = 1");
+    }
+    */
+}