TypeScript/src/services/codefixes/fixSpelling.ts at main · unknownDev31/TypeScript · GitHub

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import {

CodeFixContextBase,

Debug,

Diagnostics,

factory,

findAncestor,

getEffectiveBaseTypeNode,

getEmitScriptTarget,

getMeaningFromLocation,

getModeForUsageLocation,

getResolvedModule,

getTextOfNode,

getTokenAtPosition,

hasSyntacticModifier,

ImportDeclaration,

isBinaryExpression,

isClassElement,

isClassLike,

isIdentifier,

isIdentifierText,

isImportDeclaration,

isImportSpecifier,

isJsxAttribute,

isJsxOpeningLikeElement,

isMemberName,

isNamedDeclaration,

isPrivateIdentifier,

isPropertyAccessExpression,

isQualifiedName,

isStringLiteralLike,

ModifierFlags,

Node,

NodeFlags,

ScriptTarget,

SemanticMeaning,

SourceFile,

Symbol,

SymbolFlags,

symbolName,

SyntaxKind,

textChanges,

} from "../_namespaces/ts";

import {

codeFixAll,

createCodeFixAction,

registerCodeFix,

} from "../_namespaces/ts.codefix";

const fixId = "fixSpelling";

const errorCodes = [

Diagnostics.Property_0_does_not_exist_on_type_1_Did_you_mean_2.code,

Diagnostics.Property_0_may_not_exist_on_type_1_Did_you_mean_2.code,

Diagnostics.Cannot_find_name_0_Did_you_mean_1.code,

Diagnostics.Could_not_find_name_0_Did_you_mean_1.code,

Diagnostics.Cannot_find_namespace_0_Did_you_mean_1.code,

Diagnostics.Cannot_find_name_0_Did_you_mean_the_instance_member_this_0.code,

Diagnostics.Cannot_find_name_0_Did_you_mean_the_static_member_1_0.code,

Diagnostics._0_has_no_exported_member_named_1_Did_you_mean_2.code,

Diagnostics.This_member_cannot_have_an_override_modifier_because_it_is_not_declared_in_the_base_class_0_Did_you_mean_1.code,

Diagnostics.This_member_cannot_have_a_JSDoc_comment_with_an_override_tag_because_it_is_not_declared_in_the_base_class_0_Did_you_mean_1.code,

// for JSX class components

Diagnostics.No_overload_matches_this_call.code,

// for JSX FC

Diagnostics.Type_0_is_not_assignable_to_type_1.code,

];

registerCodeFix({

errorCodes,

getCodeActions(context) {

const { sourceFile, errorCode } = context;

const info = getInfo(sourceFile, context.span.start, context, errorCode);

if (!info) return undefined;

const { node, suggestedSymbol } = info;

const target = getEmitScriptTarget(context.host.getCompilationSettings());

const changes = textChanges.ChangeTracker.with(context, t => doChange(t, sourceFile, node, suggestedSymbol, target));

return [createCodeFixAction("spelling", changes, [Diagnostics.Change_spelling_to_0, symbolName(suggestedSymbol)], fixId, Diagnostics.Fix_all_detected_spelling_errors)];

fixIds: [fixId],

getAllCodeActions: context => codeFixAll(context, errorCodes, (changes, diag) => {

const info = getInfo(diag.file, diag.start, context, diag.code);

const target = getEmitScriptTarget(context.host.getCompilationSettings());

if (info) doChange(changes, context.sourceFile, info.node, info.suggestedSymbol, target);

}),

});

function getInfo(sourceFile: SourceFile, pos: number, context: CodeFixContextBase, errorCode: number): { node: Node, suggestedSymbol: Symbol } | undefined {

// This is the identifier of the misspelled word. eg:

// this.speling = 1;

// ^^^^^^^

const node = getTokenAtPosition(sourceFile, pos);

const parent = node.parent;

// Only fix spelling for No_overload_matches_this_call emitted on the React class component

if ((

errorCode === Diagnostics.No_overload_matches_this_call.code ||

errorCode === Diagnostics.Type_0_is_not_assignable_to_type_1.code) &&

!isJsxAttribute(parent)) return undefined;

const checker = context.program.getTypeChecker();

let suggestedSymbol: Symbol | undefined;

if (isPropertyAccessExpression(parent) && parent.name === node) {

Debug.assert(isMemberName(node), "Expected an identifier for spelling (property access)");

let containingType = checker.getTypeAtLocation(parent.expression);

if (parent.flags & NodeFlags.OptionalChain) {

containingType = checker.getNonNullableType(containingType);

}

suggestedSymbol = checker.getSuggestedSymbolForNonexistentProperty(node, containingType);

}

else if (isBinaryExpression(parent) && parent.operatorToken.kind === SyntaxKind.InKeyword && parent.left === node && isPrivateIdentifier(node)) {

const receiverType = checker.getTypeAtLocation(parent.right);

suggestedSymbol = checker.getSuggestedSymbolForNonexistentProperty(node, receiverType);

}

else if (isQualifiedName(parent) && parent.right === node) {

const symbol = checker.getSymbolAtLocation(parent.left);

if (symbol && symbol.flags & SymbolFlags.Module) {

suggestedSymbol = checker.getSuggestedSymbolForNonexistentModule(parent.right, symbol);

}

else if (isImportSpecifier(parent) && parent.name === node) {

Debug.assertNode(node, isIdentifier, "Expected an identifier for spelling (import)");

const importDeclaration = findAncestor(node, isImportDeclaration)!;

const resolvedSourceFile = getResolvedSourceFileFromImportDeclaration(sourceFile, context, importDeclaration);

if (resolvedSourceFile && resolvedSourceFile.symbol) {

suggestedSymbol = checker.getSuggestedSymbolForNonexistentModule(node, resolvedSourceFile.symbol);

}

else if (isJsxAttribute(parent) && parent.name === node) {

Debug.assertNode(node, isIdentifier, "Expected an identifier for JSX attribute");

const tag = findAncestor(node, isJsxOpeningLikeElement)!;

const props = checker.getContextualTypeForArgumentAtIndex(tag, 0);

suggestedSymbol = checker.getSuggestedSymbolForNonexistentJSXAttribute(node, props!);

}

else if (hasSyntacticModifier(parent, ModifierFlags.Override) && isClassElement(parent) && parent.name === node) {

const baseDeclaration = findAncestor(node, isClassLike);

const baseTypeNode = baseDeclaration ? getEffectiveBaseTypeNode(baseDeclaration) : undefined;

const baseType = baseTypeNode ? checker.getTypeAtLocation(baseTypeNode) : undefined;

if (baseType) {

suggestedSymbol = checker.getSuggestedSymbolForNonexistentClassMember(getTextOfNode(node), baseType);

}

else {

const meaning = getMeaningFromLocation(node);

const name = getTextOfNode(node);

Debug.assert(name !== undefined, "name should be defined");

suggestedSymbol = checker.getSuggestedSymbolForNonexistentSymbol(node, name, convertSemanticMeaningToSymbolFlags(meaning));

}

return suggestedSymbol === undefined ? undefined : { node, suggestedSymbol };

}

function doChange(changes: textChanges.ChangeTracker, sourceFile: SourceFile, node: Node, suggestedSymbol: Symbol, target: ScriptTarget) {

const suggestion = symbolName(suggestedSymbol);

if (!isIdentifierText(suggestion, target) && isPropertyAccessExpression(node.parent)) {

const valDecl = suggestedSymbol.valueDeclaration;

if (valDecl && isNamedDeclaration(valDecl) && isPrivateIdentifier(valDecl.name)) {

changes.replaceNode(sourceFile, node, factory.createIdentifier(suggestion));

}

else {

changes.replaceNode(sourceFile, node.parent, factory.createElementAccessExpression(node.parent.expression, factory.createStringLiteral(suggestion)));

}

else {

changes.replaceNode(sourceFile, node, factory.createIdentifier(suggestion));

}

function convertSemanticMeaningToSymbolFlags(meaning: SemanticMeaning): SymbolFlags {

let flags = 0;

if (meaning & SemanticMeaning.Namespace) {

flags |= SymbolFlags.Namespace;

}

if (meaning & SemanticMeaning.Type) {

flags |= SymbolFlags.Type;

}

if (meaning & SemanticMeaning.Value) {

flags |= SymbolFlags.Value;

}

return flags;

}

function getResolvedSourceFileFromImportDeclaration(sourceFile: SourceFile, context: CodeFixContextBase, importDeclaration: ImportDeclaration): SourceFile | undefined {

if (!importDeclaration || !isStringLiteralLike(importDeclaration.moduleSpecifier)) return undefined;

const resolvedModule = getResolvedModule(sourceFile, importDeclaration.moduleSpecifier.text, getModeForUsageLocation(sourceFile, importDeclaration.moduleSpecifier));

if (!resolvedModule) return undefined;

return context.program.getSourceFile(resolvedModule.resolvedFileName);

}

TypeScript/src/services/codefixes/fixSpelling.ts at main · unknownDev31/TypeScript · GitHub

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