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Enable '--strictNullChecks' (#22088)

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* Enable '--strictNullChecks'

* Fix API baselines

* Make sys.getEnvironmentVariable non-nullable

* make properties optional instead of using `| undefined` in thier type

* reportDiagnostics should be required

* Declare firstAccessor as non-nullable

* Make `some` a type guard

* Fix `getEnvironmentVariable` definition in tests

* Pretend transformFlags are always defined

* Fix one more use of sys.getEnvironmentVariable

* `requiredResponse` accepts undefined, remove assertions

* Mark optional properties as optional instead of using `| undefined`

* Mark optional properties as optional instead of using ` | undefined`

* Remove unnecessary null assertions

* Put the bang on the declaration instead of every use

* Make `createMapFromTemplate` require a parameter

* Mark `EmitResult.emittedFiles` and `EmitResult.sourceMaps` as optional

* Plumb through undefined in emitLsit and EmitExpressionList

* `ElementAccessExpression.argumentExpression` can not be `undefined`

* Add overloads for `writeTokenText`

* Make `shouldWriteSeparatingLineTerminator` argument non-nullable

* Make `synthesizedNodeStartsOnNewLine` argument required

* `PropertyAssignment.initializer` cannot be undefined

* Use one `!` at declaration site instead of on every use site

* Capture host in a constant and avoid null assertions

* Remove few more unused assertions

* Update baselines

* Use parameter defaults

* Update baselines

* Fix lint

* Make Symbol#valueDeclaration and Symbol#declarations non-optional to reduce assertions

* Make Node#symbol and Type#symbol non-optional to reduce assertions

* Make `flags` non-nullable to reduce assertions

* Convert some asserts to type guards

* Make `isNonLocalAlias` a type guard

* Add overload for `getSymbolOfNode` for `Declaration`

* Some more `getSymbolOfNode` changes

* Push undefined suppression into `typeToTypeNodeHelper`

* `NodeBuilderContext.tracker` is never `undefined`

* use `Debug.assertDefined`

* Remove unnecessary tag

* Mark `LiteralType.freshType` and `LiteralTupe.regularType` as required
This commit is contained in:
Andy
2018-05-22 14:46:57 -07:00
committed by GitHub
parent 3fe946df78
commit e53e56cf82
167 changed files with 4846 additions and 4735 deletions
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54
src/compiler/sourcemap.ts
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@@ -8,7 +8,7 @@ namespace ts {
* @param sourceMapFilePath The path to the output source map file.
* @param sourceFileOrBundle The input source file or bundle for the program.
*/
initialize(filePath: string, sourceMapFilePath: string, sourceFileOrBundle: SourceFile | Bundle, sourceMapOutput?: SourceMapData[]): void;
initialize(filePath: string, sourceMapFilePath: string | undefined, sourceFileOrBundle: SourceFile | Bundle, sourceMapOutput?: SourceMapData[]): void;
/**
* Reset the SourceMapWriter to an empty state.
@@ -90,13 +90,13 @@ namespace ts {
let sourceMapSourceIndex: number;
// Last recorded and encoded spans
let lastRecordedSourceMapSpan: SourceMapSpan;
let lastEncodedSourceMapSpan: SourceMapSpan;
let lastEncodedNameIndex: number;
let lastRecordedSourceMapSpan: SourceMapSpan | undefined;
let lastEncodedSourceMapSpan: SourceMapSpan | undefined;
let lastEncodedNameIndex: number | undefined;
// Source map data
let sourceMapData: SourceMapData;
let sourceMapDataList: SourceMapData[];
let sourceMapDataList: SourceMapData[] | undefined;
let disabled: boolean = !(compilerOptions.sourceMap || compilerOptions.inlineSourceMap);
return {
@@ -134,8 +134,8 @@ namespace ts {
}
sourceMapDataList = outputSourceMapDataList;
currentSource = undefined;
currentSourceText = undefined;
currentSource = undefined!;
currentSourceText = undefined!;
// Current source map file and its index in the sources list
sourceMapSourceIndex = -1;
@@ -148,7 +148,7 @@ namespace ts {
// Initialize source map data
sourceMapData = {
sourceMapFilePath,
jsSourceMappingURL: !compilerOptions.inlineSourceMap ? getBaseFileName(normalizeSlashes(sourceMapFilePath)) : undefined,
jsSourceMappingURL: !compilerOptions.inlineSourceMap ? getBaseFileName(normalizeSlashes(sourceMapFilePath)) : undefined!, // TODO: GH#18217
sourceMapFile: getBaseFileName(normalizeSlashes(filePath)),
sourceMapSourceRoot: compilerOptions.sourceRoot || "",
sourceMapSources: [],
@@ -206,14 +206,14 @@ namespace ts {
sourceMapDataList.push(sourceMapData);
}
currentSource = undefined;
sourceMapDir = undefined;
sourceMapSourceIndex = undefined;
currentSource = undefined!;
sourceMapDir = undefined!;
sourceMapSourceIndex = undefined!;
lastRecordedSourceMapSpan = undefined;
lastEncodedSourceMapSpan = undefined;
lastEncodedSourceMapSpan = undefined!;
lastEncodedNameIndex = undefined;
sourceMapData = undefined;
sourceMapDataList = undefined;
sourceMapData = undefined!;
sourceMapDataList = undefined!;
}
// Encoding for sourcemap span
@@ -222,9 +222,9 @@ namespace ts {
return;
}
let prevEncodedEmittedColumn = lastEncodedSourceMapSpan.emittedColumn;
let prevEncodedEmittedColumn = lastEncodedSourceMapSpan!.emittedColumn;
// Line/Comma delimiters
if (lastEncodedSourceMapSpan.emittedLine === lastRecordedSourceMapSpan.emittedLine) {
if (lastEncodedSourceMapSpan!.emittedLine === lastRecordedSourceMapSpan.emittedLine) {
// Emit comma to separate the entry
if (sourceMapData.sourceMapMappings) {
sourceMapData.sourceMapMappings += ",";
@@ -232,7 +232,7 @@ namespace ts {
}
else {
// Emit line delimiters
for (let encodedLine = lastEncodedSourceMapSpan.emittedLine; encodedLine < lastRecordedSourceMapSpan.emittedLine; encodedLine++) {
for (let encodedLine = lastEncodedSourceMapSpan!.emittedLine; encodedLine < lastRecordedSourceMapSpan.emittedLine; encodedLine++) {
sourceMapData.sourceMapMappings += ";";
}
prevEncodedEmittedColumn = 1;
@@ -242,18 +242,18 @@ namespace ts {
sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.emittedColumn - prevEncodedEmittedColumn);
// 2. Relative sourceIndex
sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.sourceIndex - lastEncodedSourceMapSpan.sourceIndex);
sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.sourceIndex - lastEncodedSourceMapSpan!.sourceIndex);
// 3. Relative sourceLine 0 based
sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.sourceLine - lastEncodedSourceMapSpan.sourceLine);
sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.sourceLine - lastEncodedSourceMapSpan!.sourceLine);
// 4. Relative sourceColumn 0 based
sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.sourceColumn - lastEncodedSourceMapSpan.sourceColumn);
sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.sourceColumn - lastEncodedSourceMapSpan!.sourceColumn);
// 5. Relative namePosition 0 based
if (lastRecordedSourceMapSpan.nameIndex >= 0) {
if (lastRecordedSourceMapSpan.nameIndex! >= 0) {
Debug.assert(false, "We do not support name index right now, Make sure to update updateLastEncodedAndRecordedSpans when we start using this");
sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.nameIndex - lastEncodedNameIndex);
sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.nameIndex! - lastEncodedNameIndex!);
lastEncodedNameIndex = lastRecordedSourceMapSpan.nameIndex;
}
@@ -334,7 +334,7 @@ namespace ts {
if (node) {
const emitNode = node.emitNode;
const emitFlags = emitNode && emitNode.flags;
const emitFlags = emitNode && emitNode.flags || EmitFlags.None;
const range = emitNode && emitNode.sourceMapRange;
const { pos, end } = range || node;
let source = range && range.source;
@@ -386,7 +386,7 @@ namespace ts {
}
const emitNode = node && node.emitNode;
const emitFlags = emitNode && emitNode.flags;
const emitFlags = emitNode && emitNode.flags || EmitFlags.None;
const range = emitNode && emitNode.tokenSourceMapRanges && emitNode.tokenSourceMapRanges[token];
tokenPos = skipSourceTrivia(range ? range.pos : tokenPos);
@@ -437,7 +437,7 @@ namespace ts {
sourceMapData.inputSourceFileNames.push(currentSource.fileName);
if (compilerOptions.inlineSources) {
sourceMapData.sourceMapSourcesContent.push(currentSource.text);
sourceMapData.sourceMapSourcesContent!.push(currentSource.text);
}
}
}
@@ -447,7 +447,7 @@ namespace ts {
*/
function getText() {
if (disabled) {
return;
return undefined!; // TODO: GH#18217
}
encodeLastRecordedSourceMapSpan();
@@ -468,7 +468,7 @@ namespace ts {
*/
function getSourceMappingURL() {
if (disabled) {
return;
return undefined!; // TODO: GH#18217
}
if (compilerOptions.inlineSourceMap) {