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Preserve string delimiter in type printing. #60729

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Preserve string delimiter in type printing. #60729

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2906dea
Preserve string delimiter in type printing.
dragomirtitian Dec 10, 2024
275f6b9
Only preserve string delimiters if we print for declaration files.
dragomirtitian Dec 16, 2024
638ceea
Preserve original quotes in all except errors.
dragomirtitian Dec 18, 2024
b8d575a
Preserve symbol name string delimiters
dragomirtitian Dec 18, 2024
1f2c52c
Improve preservation of strings in symbol printing.
dragomirtitian Dec 19, 2024
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65 changes: 52 additions & 13 deletions src/compiler/checker.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -742,7 +742,6 @@ import {
isStatic,
isString,
isStringANonContextualKeyword,
isStringDoubleQuoted,
isStringLiteral,
isStringLiteralLike,
isStringOrNumericLiteralLike,
Expand Down Expand Up @@ -1708,10 +1707,10 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
return signatureToString(signature, getParseTreeNode(enclosingDeclaration), flags, kind);
},
typeToString: (type, enclosingDeclaration, flags) => {
return typeToString(type, getParseTreeNode(enclosingDeclaration), flags);
return typeToStringWorker(type, getParseTreeNode(enclosingDeclaration), flags);
},
symbolToString: (symbol, enclosingDeclaration, meaning, flags) => {
return symbolToString(symbol, getParseTreeNode(enclosingDeclaration), meaning, flags);
return symbolToStringWorker(symbol, getParseTreeNode(enclosingDeclaration), meaning, flags);
},
typePredicateToString: (predicate, enclosingDeclaration, flags) => {
return typePredicateToString(predicate, getParseTreeNode(enclosingDeclaration), flags);
Expand All @@ -1720,10 +1719,10 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
return signatureToString(signature, getParseTreeNode(enclosingDeclaration), flags, kind, writer);
},
writeType: (type, enclosingDeclaration, flags, writer, verbosityLevel, out) => {
return typeToString(type, getParseTreeNode(enclosingDeclaration), flags, writer, verbosityLevel, out);
return typeToStringWorker(type, getParseTreeNode(enclosingDeclaration), flags, writer, verbosityLevel, out);
},
writeSymbol: (symbol, enclosingDeclaration, meaning, flags, writer) => {
return symbolToString(symbol, getParseTreeNode(enclosingDeclaration), meaning, flags, writer);
return symbolToStringWorker(symbol, getParseTreeNode(enclosingDeclaration), meaning, flags, writer);
},
writeTypePredicate: (predicate, enclosingDeclaration, flags, writer) => {
return typePredicateToString(predicate, getParseTreeNode(enclosingDeclaration), flags, writer);
Expand Down Expand Up @@ -5989,8 +5988,17 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
}

function symbolToString(symbol: Symbol, enclosingDeclaration?: Node, meaning?: SymbolFlags, flags: SymbolFormatFlags = SymbolFormatFlags.AllowAnyNodeKind, writer?: EmitTextWriter): string {
return symbolToStringWorker(symbol, enclosingDeclaration, meaning, flags | SymbolFormatFlags.UseDoubleQuotesForStringLiteralType, writer);
}
function symbolToStringWorker(symbol: Symbol, enclosingDeclaration?: Node, meaning?: SymbolFlags, flags: SymbolFormatFlags = SymbolFormatFlags.AllowAnyNodeKind, writer?: EmitTextWriter): string {
let nodeFlags = NodeBuilderFlags.IgnoreErrors;
let internalNodeFlags = InternalNodeBuilderFlags.None;
if (flags & SymbolFormatFlags.UseSingleQuotesForStringLiteralType) {
nodeFlags |= NodeBuilderFlags.UseSingleQuotesForStringLiteralType;
}
if (flags & SymbolFormatFlags.UseDoubleQuotesForStringLiteralType) {
nodeFlags |= NodeBuilderFlags.UseDoubleQuotesForStringLiteralType;
}
if (flags & SymbolFormatFlags.UseOnlyExternalAliasing) {
nodeFlags |= NodeBuilderFlags.UseOnlyExternalAliasing;
}
Expand Down Expand Up @@ -6040,13 +6048,28 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
}
}

/**
* Prints a type, forcing the conversion of string delimiters to "
* This should usually be used for errors, since in errors printed types are inclosed in '
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Suggested change
* This should usually be used for errors, since in errors printed types are inclosed in '
* This should usually be used for errors, since in errors printed types are enclosed in '

*/
function typeToString(
type: Type,
enclosingDeclaration?: Node,
flags: TypeFormatFlags = TypeFormatFlags.AllowUniqueESSymbolType | TypeFormatFlags.UseAliasDefinedOutsideCurrentScope,
writer: EmitTextWriter = createTextWriter(""),
verbosityLevel?: number,
out?: WriterContextOut,
): string {
return typeToStringWorker(type, enclosingDeclaration, flags | TypeFormatFlags.UseDoubleQuotesForStringLiteralType, writer, verbosityLevel, out);
}

function typeToStringWorker(
type: Type,
enclosingDeclaration?: Node,
flags: TypeFormatFlags = TypeFormatFlags.AllowUniqueESSymbolType | TypeFormatFlags.UseAliasDefinedOutsideCurrentScope,
writer: EmitTextWriter = createTextWriter(""),
verbosityLevel?: number,
out?: WriterContextOut,
): string {
const noTruncation = compilerOptions.noErrorTruncation || flags & TypeFormatFlags.NoTruncation || verbosityLevel !== undefined;
const typeNode = nodeBuilder.typeToTypeNode(
Expand Down Expand Up @@ -6313,8 +6336,13 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
const nodeSourceFile = getSourceFileOfNode(getOriginalNode(range));
if (!nodeIsSynthesized(range) || !(range.flags & NodeFlags.Synthesized) || !context.enclosingFile || context.enclosingFile !== nodeSourceFile) {
if (range.kind === SyntaxKind.StringLiteral) {
const stringLiteral = range as Node as StringLiteral;
range = factory.createStringLiteral(stringLiteral.text, !!nodeSourceFile && !isStringDoubleQuoted(stringLiteral, nodeSourceFile)) as Node as T;
const node = range as Node as StringLiteral;
return setOriginalNode(
context.flags & (NodeBuilderFlags.UseSingleQuotesForStringLiteralType | NodeBuilderFlags.UseDoubleQuotesForStringLiteralType) ?
factory.createStringLiteral(node.text, !!(context.flags & NodeBuilderFlags.UseSingleQuotesForStringLiteralType)) :
factory.createStringLiteralFromNode(node),
node,
) as Node as T;
}
else {
range = factory.cloneNode(range); // if `range` is synthesized or originates in another file, copy it so it definitely has synthetic positions
Expand Down Expand Up @@ -8524,10 +8552,13 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
}
let firstChar = symbolName.charCodeAt(0);

let useSingleQuote = !(context.flags & NodeBuilderFlags.UseDoubleQuotesForStringLiteralType) &&
(!!(context.flags & NodeBuilderFlags.UseSingleQuotesForStringLiteralType) || firstChar === CharacterCodes.singleQuote);

if (isSingleOrDoubleQuote(firstChar) && some(symbol.declarations, hasNonGlobalAugmentationExternalModuleSymbol)) {
return factory.createStringLiteral(getSpecifierForModuleSymbol(symbol, context));
return factory.createStringLiteral(getSpecifierForModuleSymbol(symbol, context), useSingleQuote);
}
if (index === 0 || canUsePropertyAccess(symbolName, languageVersion)) {
if (canUsePropertyAccess(symbolName, languageVersion) || (index === 0 && firstChar === CharacterCodes.openBracket)) {
const identifier = setEmitFlags(factory.createIdentifier(symbolName), EmitFlags.NoAsciiEscaping);
if (typeParameterNodes) setIdentifierTypeArguments(identifier, factory.createNodeArray<TypeNode | TypeParameterDeclaration>(typeParameterNodes));
identifier.symbol = symbol;
Expand All @@ -8538,21 +8569,27 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
if (firstChar === CharacterCodes.openBracket) {
symbolName = symbolName.substring(1, symbolName.length - 1);
firstChar = symbolName.charCodeAt(0);
useSingleQuote = !(context.flags & NodeBuilderFlags.UseDoubleQuotesForStringLiteralType) &&
(!!(context.flags & NodeBuilderFlags.UseSingleQuotesForStringLiteralType) || firstChar === CharacterCodes.singleQuote);
}
let expression: Expression | undefined;
if (isSingleOrDoubleQuote(firstChar) && !(symbol.flags & SymbolFlags.EnumMember)) {
expression = factory.createStringLiteral(stripQuotes(symbolName).replace(/\\./g, s => s.substring(1)), firstChar === CharacterCodes.singleQuote);
const stringLiteralName = factory.createStringLiteral(stripQuotes(symbolName).replace(/\\./g, s => s.substring(1)), useSingleQuote);
stringLiteralName.symbol = symbol;
expression = stringLiteralName;
}
else if (("" + +symbolName) === symbolName) {
expression = factory.createNumericLiteral(+symbolName);
const numberLiteralName = factory.createNumericLiteral(+symbolName);
numberLiteralName.symbol = symbol;
expression = numberLiteralName;
}
if (!expression) {
const identifier = setEmitFlags(factory.createIdentifier(symbolName), EmitFlags.NoAsciiEscaping);
if (typeParameterNodes) setIdentifierTypeArguments(identifier, factory.createNodeArray<TypeNode | TypeParameterDeclaration>(typeParameterNodes));
identifier.symbol = symbol;
expression = identifier;
}
return factory.createElementAccessExpression(createExpressionFromSymbolChain(chain, index - 1), expression);
return index === 0 ? expression : factory.createElementAccessExpression(createExpressionFromSymbolChain(chain, index - 1), expression);
}
}
}
Expand Down Expand Up @@ -8580,7 +8617,9 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {

function getPropertyNameNodeForSymbol(symbol: Symbol, context: NodeBuilderContext) {
const stringNamed = !!length(symbol.declarations) && every(symbol.declarations, isStringNamed);
const singleQuote = !!length(symbol.declarations) && every(symbol.declarations, isSingleQuotedStringNamed);
const singleQuote = context.flags & NodeBuilderFlags.UseSingleQuotesForStringLiteralType ? true :
context.flags & NodeBuilderFlags.UseDoubleQuotesForStringLiteralType ? false :
!!length(symbol.declarations) && every(symbol.declarations, isSingleQuotedStringNamed);
const isMethod = !!(symbol.flags & SymbolFlags.Method);
const fromNameType = getPropertyNameNodeForSymbolFromNameType(symbol, context, singleQuote, stringNamed, isMethod);
if (fromNameType) {
Expand Down
5 changes: 4 additions & 1 deletion src/compiler/emitter.ts
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Expand Up @@ -2099,7 +2099,10 @@ export function createPrinter(printerOptions: PrinterOptions = {}, handlers: Pri
// SyntaxKind.TemplateTail
function emitLiteral(node: LiteralLikeNode, jsxAttributeEscape: boolean) {
const text = getLiteralTextOfNode(node, /*sourceFile*/ undefined, printerOptions.neverAsciiEscape, jsxAttributeEscape);
if (
if ((node.kind === SyntaxKind.StringLiteral || node.kind === SyntaxKind.NumericLiteral) && (node as StringLiteral).symbol) {
writeSymbol(text, (node as StringLiteral).symbol);
}
else if (
(printerOptions.sourceMap || printerOptions.inlineSourceMap)
&& (node.kind === SyntaxKind.StringLiteral || isTemplateLiteralKind(node.kind))
) {
Expand Down
11 changes: 7 additions & 4 deletions src/compiler/expressionToTypeNode.ts
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Expand Up @@ -531,10 +531,13 @@ export function createSyntacticTypeNodeBuilder(
setEmitFlags(clone, flags | (context.flags & NodeBuilderFlags.MultilineObjectLiterals && isTypeLiteralNode(node) ? 0 : EmitFlags.SingleLine));
return clone;
}
if (isStringLiteral(node) && !!(context.flags & NodeBuilderFlags.UseSingleQuotesForStringLiteralType) && !node.singleQuote) {
const clone = factory.cloneNode(node);
(clone as Mutable<typeof clone>).singleQuote = true;
return clone;
if (isStringLiteral(node)) {
return setOriginalNode(
context.flags & (NodeBuilderFlags.UseSingleQuotesForStringLiteralType | NodeBuilderFlags.UseDoubleQuotesForStringLiteralType) ?
factory.createStringLiteral(node.text, !!(context.flags & NodeBuilderFlags.UseSingleQuotesForStringLiteralType)) :
factory.createStringLiteralFromNode(node),
node,
);
}
if (isConditionalTypeNode(node)) {
const checkType = visitNode(node.checkType, visitExistingNodeTreeSymbols, isTypeNode)!;
Expand Down
9 changes: 7 additions & 2 deletions src/compiler/types.ts
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Expand Up @@ -5489,7 +5489,8 @@ export const enum NodeBuilderFlags {
UseTypeOfFunction = 1 << 12, // Build using typeof instead of function type literal
OmitParameterModifiers = 1 << 13, // Omit modifiers on parameters
UseAliasDefinedOutsideCurrentScope = 1 << 14, // Allow non-visible aliases
UseSingleQuotesForStringLiteralType = 1 << 28, // Use single quotes for string literal type
UseSingleQuotesForStringLiteralType = 1 << 28, // Force single quotes for string literal type or preserve source delimiters
UseDoubleQuotesForStringLiteralType = 1 << 30, // Force double quotes for string literal type or preserve source delimiters
NoTypeReduction = 1 << 29, // Don't call getReducedType
OmitThisParameter = 1 << 25,

Expand Down Expand Up @@ -5544,6 +5545,7 @@ export const enum TypeFormatFlags {

UseAliasDefinedOutsideCurrentScope = 1 << 14, // For a `type T = ... ` defined in a different file, write `T` instead of its value, even though `T` can't be accessed in the current scope.
UseSingleQuotesForStringLiteralType = 1 << 28, // Use single quotes for string literal type
UseDoubleQuotesForStringLiteralType = 1 << 30, // Use double quotes for string literal type
NoTypeReduction = 1 << 29, // Don't call getReducedType
OmitThisParameter = 1 << 25,

Expand All @@ -5563,7 +5565,7 @@ export const enum TypeFormatFlags {
NodeBuilderFlagsMask = NoTruncation | WriteArrayAsGenericType | GenerateNamesForShadowedTypeParams | UseStructuralFallback | WriteTypeArgumentsOfSignature |
UseFullyQualifiedType | SuppressAnyReturnType | MultilineObjectLiterals | WriteClassExpressionAsTypeLiteral |
UseTypeOfFunction | OmitParameterModifiers | UseAliasDefinedOutsideCurrentScope | AllowUniqueESSymbolType | InTypeAlias |
UseSingleQuotesForStringLiteralType | NoTypeReduction | OmitThisParameter,
UseSingleQuotesForStringLiteralType | UseDoubleQuotesForStringLiteralType | NoTypeReduction | OmitThisParameter,
}

// dprint-ignore
Expand Down Expand Up @@ -5592,6 +5594,9 @@ export const enum SymbolFormatFlags {

// Skip building an accessible symbol chain
/** @internal */ DoNotIncludeSymbolChain = 1 << 5,

UseSingleQuotesForStringLiteralType = 1 << 6, // Use single quotes for string literal type
UseDoubleQuotesForStringLiteralType = 1 << 7, // Use double quote for string literal type
}

/** @internal */
Expand Down
2 changes: 1 addition & 1 deletion tests/baselines/reference/aliasDoesNotDuplicateSignatures.symbols
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Expand Up @@ -8,7 +8,7 @@ declare namespace demoNS {
>f : Symbol(f, Decl(demo.d.ts, 0, 26))
}
declare module 'demoModule' {
>'demoModule' : Symbol("demoModule", Decl(demo.d.ts, 2, 1))
>'demoModule' : Symbol('demoModule', Decl(demo.d.ts, 2, 1))
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I'm surprised to see symbol baselines change; were we inconsistent with these before?

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Symbol printing is involved in type printing and error printing. I applied the 'preserve source code delimiters in everything except errors' to the symbol printing too. This does mean that the delimiters are now preserved in symbol baselines where they previously were not.

Were they always replaced before? Don't think so. Some error messages used symbol printing for the property names and we can see in error baselines changes that some of those kept the ' delimiter instead of having it replaced with "


import alias = demoNS;
>alias : Symbol(alias, Decl(demo.d.ts, 3, 29))
Expand Down
2 changes: 1 addition & 1 deletion tests/baselines/reference/ambientDeclarations.symbols
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Expand Up @@ -162,7 +162,7 @@ var q = M1.fn();
// Ambient external module in the global module
// Ambient external module with a string literal name that is a top level external module name
declare module 'external1' {
>'external1' : Symbol("external1", Decl(ambientDeclarations.ts, 67, 16))
>'external1' : Symbol('external1', Decl(ambientDeclarations.ts, 67, 16))

var q;
>q : Symbol(q, Decl(ambientDeclarations.ts, 72, 7))
Expand Down
4 changes: 2 additions & 2 deletions tests/baselines/reference/ambientDeclarationsExternal.symbols
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Expand Up @@ -22,7 +22,7 @@ var n: number;
=== decls.ts ===
// Ambient external module with export assignment
declare module 'equ' {
>'equ' : Symbol("equ", Decl(decls.ts, 0, 0))
>'equ' : Symbol('equ', Decl(decls.ts, 0, 0))

var x;
>x : Symbol(x, Decl(decls.ts, 2, 7))
Expand All @@ -32,7 +32,7 @@ declare module 'equ' {
}

declare module 'equ2' {
>'equ2' : Symbol("equ2", Decl(decls.ts, 4, 1))
>'equ2' : Symbol('equ2', Decl(decls.ts, 4, 1))

var x: number;
>x : Symbol(x, Decl(decls.ts, 7, 7))
Expand Down
6 changes: 3 additions & 3 deletions tests/baselines/reference/ambientErrors.symbols
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Expand Up @@ -92,16 +92,16 @@ module M2 {
>M2 : Symbol(M2, Decl(ambientErrors.ts, 42, 1))

declare module 'nope' { }
>'nope' : Symbol("nope", Decl(ambientErrors.ts, 45, 11))
>'nope' : Symbol('nope', Decl(ambientErrors.ts, 45, 11))
}

// Ambient external module with a string literal name that isn't a top level external module name
declare module '../foo' { }
>'../foo' : Symbol("../foo", Decl(ambientErrors.ts, 47, 1))
>'../foo' : Symbol('../foo', Decl(ambientErrors.ts, 47, 1))

// Ambient external module with export assignment and other exported members
declare module 'bar' {
>'bar' : Symbol("bar", Decl(ambientErrors.ts, 50, 27))
>'bar' : Symbol('bar', Decl(ambientErrors.ts, 50, 27))

var n;
>n : Symbol(n, Decl(ambientErrors.ts, 54, 7))
Expand Down
2 changes: 1 addition & 1 deletion tests/baselines/reference/ambientExternalModuleWithInternalImportDeclaration.symbols
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Expand Up @@ -11,7 +11,7 @@ var c = new A();

=== ambientExternalModuleWithInternalImportDeclaration_0.ts ===
declare module 'M' {
>'M' : Symbol("M", Decl(ambientExternalModuleWithInternalImportDeclaration_0.ts, 0, 0))
>'M' : Symbol('M', Decl(ambientExternalModuleWithInternalImportDeclaration_0.ts, 0, 0))

module C {
>C : Symbol(C, Decl(ambientExternalModuleWithInternalImportDeclaration_0.ts, 0, 20), Decl(ambientExternalModuleWithInternalImportDeclaration_0.ts, 3, 5))
Expand Down
2 changes: 1 addition & 1 deletion tests/baselines/reference/ambientExternalModuleWithoutInternalImportDeclaration.symbols
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Expand Up @@ -11,7 +11,7 @@ var c = new A();

=== ambientExternalModuleWithoutInternalImportDeclaration_0.ts ===
declare module 'M' {
>'M' : Symbol("M", Decl(ambientExternalModuleWithoutInternalImportDeclaration_0.ts, 0, 0))
>'M' : Symbol('M', Decl(ambientExternalModuleWithoutInternalImportDeclaration_0.ts, 0, 0))

module C {
>C : Symbol(C, Decl(ambientExternalModuleWithoutInternalImportDeclaration_0.ts, 0, 20), Decl(ambientExternalModuleWithoutInternalImportDeclaration_0.ts, 3, 5))
Expand Down
6 changes: 5 additions & 1 deletion tests/baselines/reference/api/typescript.d.ts
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Expand Up @@ -6365,6 +6365,7 @@ declare namespace ts {
OmitParameterModifiers = 8192,
UseAliasDefinedOutsideCurrentScope = 16384,
UseSingleQuotesForStringLiteralType = 268435456,
UseDoubleQuotesForStringLiteralType = 1073741824,
NoTypeReduction = 536870912,
OmitThisParameter = 33554432,
AllowThisInObjectLiteral = 32768,
Expand Down Expand Up @@ -6395,6 +6396,7 @@ declare namespace ts {
OmitParameterModifiers = 8192,
UseAliasDefinedOutsideCurrentScope = 16384,
UseSingleQuotesForStringLiteralType = 268435456,
UseDoubleQuotesForStringLiteralType = 1073741824,
NoTypeReduction = 536870912,
OmitThisParameter = 33554432,
AllowUniqueESSymbolType = 1048576,
Expand All @@ -6404,14 +6406,16 @@ declare namespace ts {
InElementType = 2097152,
InFirstTypeArgument = 4194304,
InTypeAlias = 8388608,
NodeBuilderFlagsMask = 848330095,
NodeBuilderFlagsMask = 1922071919,
}
enum SymbolFormatFlags {
None = 0,
WriteTypeParametersOrArguments = 1,
UseOnlyExternalAliasing = 2,
AllowAnyNodeKind = 4,
UseAliasDefinedOutsideCurrentScope = 8,
UseSingleQuotesForStringLiteralType = 64,
UseDoubleQuotesForStringLiteralType = 128,
}
enum TypePredicateKind {
This = 0,
Expand Down
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