microsoft/TypeScript
1
0
Fork 0
mirror of https://github.com/microsoft/TypeScript.git synced 2026-02-05 16:38:05 -06:00
Code Issues Packages Projects Releases 212 Wiki Activity

createJavaScriptSignatureHelpItems: Use array helpers and simplify (#26025)

Browse Source
This commit is contained in:
Andy 2018-07-27 17:33:17 -07:00 committed by GitHub
parent 78ad21d33b
commit 57d425169a
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
src/services/signatureHelp.ts
View File

@ -101,31 +101,16 @@ namespace ts.SignatureHelp {
function createJavaScriptSignatureHelpItems(argumentInfo: ArgumentListInfo, program: Program, cancellationToken: CancellationToken): SignatureHelpItems | undefined {
// See if we can find some symbol with the call expression name that has call signatures.
const expression = getExpressionFromInvocation(argumentInfo.invocation);
const name = isIdentifier(expression) ? expression : isPropertyAccessExpression(expression) ? expression.name : undefined;
if (!name || !name.escapedText) {
return undefined;
}
const name = isIdentifier(expression) ? expression.text : isPropertyAccessExpression(expression) ? expression.name.text : undefined;
const typeChecker = program.getTypeChecker();
for (const sourceFile of program.getSourceFiles()) {
const nameToDeclarations = sourceFile.getNamedDeclarations();
const declarations = nameToDeclarations.get(name.text);
if (declarations) {
for (const declaration of declarations) {
const symbol = declaration.symbol;
if (symbol) {
const type = typeChecker.getTypeOfSymbolAtLocation(symbol, declaration);
if (type) {
const callSignatures = type.getCallSignatures();
if (callSignatures && callSignatures.length) {
return typeChecker.runWithCancellationToken(cancellationToken, typeChecker => createSignatureHelpItems(callSignatures, callSignatures[0], argumentInfo, sourceFile, typeChecker));
}
}
}
return name === undefined ? undefined : firstDefined(program.getSourceFiles(), sourceFile =>
firstDefined(sourceFile.getNamedDeclarations().get(name), declaration => {
const type = declaration.symbol && typeChecker.getTypeOfSymbolAtLocation(declaration.symbol, declaration);
const callSignatures = type && type.getCallSignatures();
if (callSignatures && callSignatures.length) {
return typeChecker.runWithCancellationToken(cancellationToken, typeChecker => createSignatureHelpItems(callSignatures, callSignatures[0], argumentInfo, sourceFile, typeChecker));
}
}
}
}));
}
function lessThanFollowsCalledExpression(startingToken: Node, sourceFile: SourceFile, calledExpression: Expression) {