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www: handle empty input in web REPL

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This commit is contained in:
Brian Carroll 2022-10-07 08:26:31 +01:00
parent 90dacb2085
commit 5ef7cb2750
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GPG Key ID: 9CF4E3BF9C4722C7
1 changed files with 10 additions and 9 deletions
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19
www/public/repl/repl.js
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@ -42,7 +42,7 @@ const repl = {
repl.elemSourceInput.addEventListener("change", onInputChange);
repl.elemSourceInput.addEventListener("keyup", onInputKeyup);
roc_repl_wasm.default("/repl/roc_repl_wasm_bg.wasm").then((instance) => {
repl.elemHistory.querySelector('#loading-message').remove();
repl.elemHistory.querySelector("#loading-message").remove();
repl.elemSourceInput.disabled = false;
repl.elemSourceInput.placeholder =
"Type some Roc code and press Enter. (Use Shift+Enter for multi-line input)";
@ -54,8 +54,7 @@ roc_repl_wasm.default("/repl/roc_repl_wasm_bg.wasm").then((instance) => {
// ----------------------------------------------------------------------------
function onInputChange(event) {
const inputText = event.target.value;
if (!inputText) return;
const inputText = event.target.value.trim();
event.target.value = "";
@ -122,13 +121,15 @@ async function processInputQueue() {
repl.inputHistoryIndex = createHistoryEntry(inputText);
repl.inputStash = "";
let outputText;
let outputText = "";
let ok = true;
try {
outputText = await roc_repl_wasm.entrypoint_from_js(inputText);
} catch (e) {
outputText = `${e}`;
ok = false;
if (inputText) {
try {
outputText = await roc_repl_wasm.entrypoint_from_js(inputText);
} catch (e) {
outputText = `${e}`;
ok = false;
}
}
updateHistoryEntry(repl.inputHistoryIndex, ok, outputText);