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Merge pull request #6290 from RyanCavanaugh/fix5865

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Tag 'react' import as used if it exists when targeting --jsx preserve
This commit is contained in:
Ryan Cavanaugh
2016-01-04 07:47:01 -08:00
parent 6be0206242 7aa8ba6ba7
commit 0debd2b6cd
10 changed files with 137 additions and 9 deletions
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14
src/compiler/checker.ts
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@@ -8363,14 +8363,12 @@ namespace ts {
checkGrammarJsxElement(node);
checkJsxPreconditions(node);
// If we're compiling under --jsx react, the symbol 'React' should
// be marked as 'used' so we don't incorrectly elide its import. And if there
// is no 'React' symbol in scope, we should issue an error.
if (compilerOptions.jsx === JsxEmit.React) {
const reactSym = resolveName(node.tagName, "React", SymbolFlags.Value, Diagnostics.Cannot_find_name_0, "React");
if (reactSym) {
getSymbolLinks(reactSym).referenced = true;
}
// The symbol 'React' should be marked as 'used' so we don't incorrectly elide its import. And if there
// is no 'React' symbol in scope when targeting React emit, we should issue an error.
const reactRefErr = compilerOptions.jsx === JsxEmit.React ? Diagnostics.Cannot_find_name_0 : undefined;
const reactSym = resolveName(node.tagName, "React", SymbolFlags.Value, reactRefErr, "React");
if (reactSym) {
getSymbolLinks(reactSym).referenced = true;
}
const targetAttributesType = getJsxElementAttributesType(node);