Set up wasm build system

Cargo.lock

@@ -9,6 +9,18 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "bumpalo"
+version = "3.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "63396b8a4b9de3f4fdfb320ab6080762242f66a8ef174c49d8e19b674db4cdbe"
+
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
 [[package]]
 name = "elastic"
 version = "0.1.0"
@@ -17,6 +29,7 @@ dependencies = [
  "regex",
  "serde",
  "serde_json",
+ "wasm-bindgen",
 ]
 
 [[package]]
@@ -31,12 +44,39 @@ version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
+[[package]]
+name = "log"
+version = "0.4.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
+dependencies = [
+ "cfg-if",
+]
+
 [[package]]
 name = "memchr"
 version = "2.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
 
+[[package]]
+name = "proc-macro2"
+version = "1.0.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a152013215dca273577e18d2bf00fa862b89b24169fb78c4c95aeb07992c9cec"
+dependencies = [
+ "unicode-xid",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3d0b9745dc2debf507c8422de05d7226cc1f0644216dfdfead988f9b1ab32a7"
+dependencies = [
+ "proc-macro2",
+]
+
 [[package]]
 name = "regex"
 version = "1.4.5"
@@ -76,3 +116,74 @@ dependencies = [
  "ryu",
  "serde",
 ]
+
+[[package]]
+name = "syn"
+version = "1.0.68"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ce15dd3ed8aa2f8eeac4716d6ef5ab58b6b9256db41d7e1a0224c2788e8fd87"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
+
+[[package]]
+name = "wasm-bindgen"
+version = "0.2.73"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "83240549659d187488f91f33c0f8547cbfef0b2088bc470c116d1d260ef623d9"
+dependencies = [
+ "cfg-if",
+ "wasm-bindgen-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-backend"
+version = "0.2.73"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae70622411ca953215ca6d06d3ebeb1e915f0f6613e3b495122878d7ebec7dae"
+dependencies = [
+ "bumpalo",
+ "lazy_static",
+ "log",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.73"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3e734d91443f177bfdb41969de821e15c516931c3c3db3d318fa1b68975d0f6f"
+dependencies = [
+ "quote",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
+name = "wasm-bindgen-macro-support"
+version = "0.2.73"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d53739ff08c8a68b0fdbcd54c372b8ab800b1449ab3c9d706503bc7dd1621b2c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-backend",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.73"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9a543ae66aa233d14bb765ed9af4a33e81b8b58d1584cf1b47ff8cd0b9e4489"

Cargo.toml

@@ -4,10 +4,12 @@ version = "0.1.0"
 authors = ["Dylan Baker <dylan@simulacrum.party>"]
 edition = "2018"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
 lazy_static = "1.4.0"
 regex = "1.4.5"
 serde = "1.0.125"
 serde_json = "1.0.64"
+wasm-bindgen = "0.2.73"
+
+[lib]
+crate-type = ["cdylib"]

Makefile

@@ -0,0 +1,2 @@
+elastic:
+	wasm-pack build --target web

src/lib.rs

@@ -4,11 +4,26 @@ pub mod lexer;
 pub mod parser;
 pub mod token;
 
-use compiler::Query;
-use error::ElasticError;
+use wasm_bindgen::prelude::*;
 
-pub fn compile(input: &str) -> Result<Query, ElasticError> {
-    let tokens = lexer::scan(&input)?;
-    let select = parser::parse(tokens)?;
-    compiler::compile(select)
+#[wasm_bindgen]
+pub fn compile(input: &str) -> String {
+    let tokens = match lexer::scan(&input) {
+        Ok(tokens) => tokens,
+        Err(e) => return e.message,
+    };
+    let select = match parser::parse(tokens) {
+        Ok(select) => select,
+        Err(e) => return e.message,
+    };
+    let query = match compiler::compile(select) {
+        Ok(query) => query,
+        Err(e) => return e.message,
+    };
+
+    format!(
+        "GET /{}/_search\n{}",
+        query.source.name,
+        serde_json::to_string_pretty(&query.body).unwrap()
+    )
 }