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Only warn about an unsupported TypeScript version once #347

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merged 6 commits into from
Aug 9, 2017
Merged

Only warn about an unsupported TypeScript version once #347

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e687d36
New: Only warn about an unsupported TypeScript version once (fixes #348)
j-f1 Aug 8, 2017
547db22
Move the warning message outside of the parser function
j-f1 Aug 8, 2017
f11a370
Silence lint warning
j-f1 Aug 8, 2017
6505f65
Revert "Move the warning message outside of the parser function"
j-f1 Aug 8, 2017
4feeb32
Allow disabling logging with `loggerFn: false`
j-f1 Aug 9, 2017
fa0f83e
Remove the ESLint incantation and use `Function.prototype` instead.
j-f1 Aug 9, 2017
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6 changes: 5 additions & 1 deletion parser.js
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@ const ACTIVE_TYPESCRIPT_VERSION = ts.version;
const isRunningSupportedTypeScriptVersion = semver.satisfies(ACTIVE_TYPESCRIPT_VERSION, SUPPORTED_TYPESCRIPT_VERSIONS);

let extra;
let warnedAboutTSVersion = false;

/**
* Resets the extra config object
Expand Down Expand Up @@ -99,11 +100,13 @@ function parse(code, options) {
*/
if (typeof options.loggerFn === "function") {
extra.log = options.loggerFn;
} else if (options.loggerFn === false) {
extra.log = Function.prototype;
}

}

if (!isRunningSupportedTypeScriptVersion) {
if (!isRunningSupportedTypeScriptVersion && !warnedAboutTSVersion) {
const border = "=============";
const versionWarning = [
border,
Expand All @@ -115,6 +118,7 @@ function parse(code, options) {
border
];
extra.log(versionWarning.join("\n\n"));
warnedAboutTSVersion = true;
}

// Even if jsx option is set in typescript compiler, filename still has to
Expand Down