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Optimize performance of maps #10270

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merged 4 commits into from
Aug 13, 2016
Merged

Optimize performance of maps #10270

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65e1293
Optimize performance of maps
ahejlsberg Aug 10, 2016
cba2e1a
Update API sample
ahejlsberg Aug 10, 2016
3ff89f7
Fix processDiagnosticMessages script
ahejlsberg Aug 11, 2016
87393e0
Merge branch 'master' into optimizeMaps
ahejlsberg Aug 12, 2016
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2 changes: 1 addition & 1 deletion scripts/processDiagnosticMessages.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -69,7 +69,7 @@ function checkForUniqueCodes(messages: string[], diagnosticTable: InputDiagnosti
}

function buildUniqueNameMap(names: string[]): ts.Map<string> {
var nameMap: ts.Map<string> = {};
var nameMap = ts.createMap<string>();

var uniqueNames = NameGenerator.ensureUniqueness(names, /* isCaseSensitive */ false, /* isFixed */ undefined);

Expand Down
27 changes: 13 additions & 14 deletions src/compiler/binder.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -135,7 +135,7 @@ namespace ts {
options = opts;
languageVersion = getEmitScriptTarget(options);
inStrictMode = !!file.externalModuleIndicator;
classifiableNames = {};
classifiableNames = createMap<string>();
symbolCount = 0;

Symbol = objectAllocator.getSymbolConstructor();
Expand Down Expand Up @@ -183,11 +183,11 @@ namespace ts {
symbol.declarations.push(node);

if (symbolFlags & SymbolFlags.HasExports && !symbol.exports) {
symbol.exports = {};
symbol.exports = createMap<Symbol>();
}

if (symbolFlags & SymbolFlags.HasMembers && !symbol.members) {
symbol.members = {};
symbol.members = createMap<Symbol>();
}

if (symbolFlags & SymbolFlags.Value) {
Expand Down Expand Up @@ -318,9 +318,7 @@ namespace ts {
// Otherwise, we'll be merging into a compatible existing symbol (for example when
// you have multiple 'vars' with the same name in the same container). In this case
// just add this node into the declarations list of the symbol.
symbol = hasProperty(symbolTable, name)
? symbolTable[name]
: (symbolTable[name] = createSymbol(SymbolFlags.None, name));
symbol = symbolTable[name] || (symbolTable[name] = createSymbol(SymbolFlags.None, name));

if (name && (includes & SymbolFlags.Classifiable)) {
classifiableNames[name] = name;
Expand Down Expand Up @@ -434,7 +432,7 @@ namespace ts {
if (containerFlags & ContainerFlags.IsContainer) {
container = blockScopeContainer = node;
if (containerFlags & ContainerFlags.HasLocals) {
container.locals = {};
container.locals = createMap<Symbol>();
}
addToContainerChain(container);
}
Expand Down Expand Up @@ -1399,7 +1397,8 @@ namespace ts {

const typeLiteralSymbol = createSymbol(SymbolFlags.TypeLiteral, "__type");
addDeclarationToSymbol(typeLiteralSymbol, node, SymbolFlags.TypeLiteral);
typeLiteralSymbol.members = { [symbol.name]: symbol };
typeLiteralSymbol.members = createMap<Symbol>();
typeLiteralSymbol.members[symbol.name] = symbol;
}

function bindObjectLiteralExpression(node: ObjectLiteralExpression) {
Expand All @@ -1409,7 +1408,7 @@ namespace ts {
}

if (inStrictMode) {
const seen: Map<ElementKind> = {};
const seen = createMap<ElementKind>();

for (const prop of node.properties) {
if (prop.name.kind !== SyntaxKind.Identifier) {
Expand Down Expand Up @@ -1465,7 +1464,7 @@ namespace ts {
// fall through.
default:
if (!blockScopeContainer.locals) {
blockScopeContainer.locals = {};
blockScopeContainer.locals = createMap<Symbol>();
addToContainerChain(blockScopeContainer);
}
declareSymbol(blockScopeContainer.locals, undefined, node, symbolFlags, symbolExcludes);
Expand Down Expand Up @@ -1924,7 +1923,7 @@ namespace ts {
}
}

file.symbol.globalExports = file.symbol.globalExports || {};
file.symbol.globalExports = file.symbol.globalExports || createMap<Symbol>();
declareSymbol(file.symbol.globalExports, file.symbol, node, SymbolFlags.Alias, SymbolFlags.AliasExcludes);
}

Expand Down Expand Up @@ -1977,7 +1976,7 @@ namespace ts {
else {
return;
}
assignee.symbol.members = assignee.symbol.members || {};
assignee.symbol.members = assignee.symbol.members || createMap<Symbol>();
// It's acceptable for multiple 'this' assignments of the same identifier to occur
declareSymbol(assignee.symbol.members, assignee.symbol, node, SymbolFlags.Property, SymbolFlags.PropertyExcludes & ~SymbolFlags.Property);
}
Expand All @@ -2003,7 +2002,7 @@ namespace ts {

// Set up the members collection if it doesn't exist already
if (!funcSymbol.members) {
funcSymbol.members = {};
funcSymbol.members = createMap<Symbol>();
}

// Declare the method/property
Expand Down Expand Up @@ -2052,7 +2051,7 @@ namespace ts {
// module might have an exported variable called 'prototype'. We can't allow that as
// that would clash with the built-in 'prototype' for the class.
const prototypeSymbol = createSymbol(SymbolFlags.Property | SymbolFlags.Prototype, "prototype");
if (hasProperty(symbol.exports, prototypeSymbol.name)) {
if (symbol.exports[prototypeSymbol.name]) {
if (node.name) {
node.name.parent = node;
}
Expand Down
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