rudolph9 · February 4, 2023 00:32 · Sep 6, 2019 · Sep 3, 2019 · Sep 3, 2019 · Sep 2, 2019
diff --git a/README.md b/README.md
@@ -5,7 +5,7 @@ Followed tutorial here: https://github.com/golang/go/wiki/WebAssembly
 ## Setup
 
 1. install compatible version of golang. Test with go1.12.8
-2. get cue: `go get -u go get cuelang.org/go/cue` NOTE: this installs the packages files, not the cmd
+2. get cue: `go get -u cuelang.org/go/cue` NOTE: this installs the packages files, not the cmd
 3. get the wasm exec_file `cp "$(go env GOROOT)/misc/wasm/wasm_exec.js`
 
 ## Build

diff --git a/README.md b/README.md
@@ -10,11 +10,11 @@ Followed tutorial here: https://github.com/golang/go/wiki/WebAssembly
 
 ## Build
 
-3. Build the wasm: `GOARCH=wasm GOOS=js go build -o lib.wasm main.go`
+4. Build the wasm: `GOARCH=wasm GOOS=js go build -o lib.wasm main.go`
 
 ## Serve files
 
-4. install `goexec` if needed (or serve the files some other way): `go get -u github.com/shurcooL/goexec`
+5. install `goexec` if needed (or serve the files some other way): `go get -u github.com/shurcooL/goexec`
 
 5. Serve files: `goexec 'http.ListenAndServe(":8080", http.FileServer(http.Dir(".")))'`
 
diff --git a/README.md b/README.md
@@ -6,6 +6,7 @@ Followed tutorial here: https://github.com/golang/go/wiki/WebAssembly
 
 1. install compatible version of golang. Test with go1.12.8
 2. get cue: `go get -u go get cuelang.org/go/cue` NOTE: this installs the packages files, not the cmd
+3. get the wasm exec_file `cp "$(go env GOROOT)/misc/wasm/wasm_exec.js`
 
 ## Build
 

diff --git a/README.md b/README.md
@@ -0,0 +1,19 @@
+# Cue Web Assembly
+
+Followed tutorial here: https://github.com/golang/go/wiki/WebAssembly
+
+## Setup
+
+1. install compatible version of golang. Test with go1.12.8
+2. get cue: `go get -u go get cuelang.org/go/cue` NOTE: this installs the packages files, not the cmd
+
+## Build
+
+3. Build the wasm: `GOARCH=wasm GOOS=js go build -o lib.wasm main.go`
+
+## Serve files
+
+4. install `goexec` if needed (or serve the files some other way): `go get -u github.com/shurcooL/goexec`
+
+5. Serve files: `goexec 'http.ListenAndServe(":8080", http.FileServer(http.Dir(".")))'`
+
diff --git a/index.html b/index.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<!--
+Copyright 2018 The Go Authors. All rights reserved.
+Use of this source code is governed by a BSD-style
+license that can be found in the LICENSE file.
+-->
+<html>
+  <head>
+    <meta charset="utf-8" />
+    <title>Go wasm</title>
+  </head>
+
+  <body>
+    <script src="wasm_exec.js"></script>
+
+    <script>
+      if (!WebAssembly.instantiateStreaming) {
+        // polyfill
+        WebAssembly.instantiateStreaming = async (resp, importObject) => {
+          const source = await (await resp).arrayBuffer();
+          return await WebAssembly.instantiate(source, importObject);
+        };
+      }
+
+      const go = new Go();
+
+      let mod, inst;
+
+      WebAssembly.instantiateStreaming(fetch("lib.wasm"), go.importObject).then(
+        result => {
+          mod = result.module;
+          inst = result.instance;
+          document.getElementById("runButton").disabled = false;
+        }
+      );
+
+      async function run() {
+        await go.run(inst);
+        inst = await WebAssembly.instantiate(mod, go.importObject); // reset instance
+      }
+    </script>
+
+    <button onClick="run();" id="runButton" disabled>Run</button>
+  </body>
+</html>
diff --git a/main.go b/main.go
@@ -0,0 +1,29 @@
+package main
+
+import (
+	"fmt"
+	"math/big"
+
+	"cuelang.org/go/cue"
+)
+
+func main() {
+	const config = `
+TimeSeries: {
+  "2019-09-01T07:00:00Z": 36
+}
+TimeSeries: {
+  "2019-09-01T07:10:59Z": 200
+}
+`
+	var r cue.Runtime
+
+	instance, err := r.Compile("test", config)
+	if err != nil {
+		fmt.Println(err)
+	}
+
+	var bigInt big.Int
+	instance.Lookup("TimeSeries").Lookup("2019-09-01T07:10:59Z").Int(&bigInt)
+	fmt.Println(bigInt.String())
+}
diff --git a/wasm_exec.js b/wasm_exec.js
@@ -0,0 +1 @@
+// get this file by running `cp "$(go env GOROOT)/misc/wasm/wasm_exec.js"`
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		// get this file by running `cp "$(go env GOROOT)/misc/wasm/wasm_exec.js"`
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