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Add --strictPropertyInitialization compiler option

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This commit is contained in:
Anders Hejlsberg 2017-11-16 10:58:00 -08:00
parent c11969f804
commit 8cbff0159d
4 changed files with 14 additions and 2 deletions
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3
src/compiler/checker.ts
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@ -69,6 +69,7 @@ namespace ts {
const allowSyntheticDefaultImports = getAllowSyntheticDefaultImports(compilerOptions);
const strictNullChecks = getStrictOptionValue(compilerOptions, "strictNullChecks");
const strictFunctionTypes = getStrictOptionValue(compilerOptions, "strictFunctionTypes");
const strictPropertyInitialization = getStrictOptionValue(compilerOptions, "strictPropertyInitialization");
const noImplicitAny = getStrictOptionValue(compilerOptions, "noImplicitAny");
const noImplicitThis = getStrictOptionValue(compilerOptions, "noImplicitThis");
@ -22230,7 +22231,7 @@ namespace ts {
}
function checkPropertyInitialization(node: ClassLikeDeclaration) {
if (!strictNullChecks || node.flags & NodeFlags.Ambient) {
if (!strictNullChecks || !strictPropertyInitialization || node.flags & NodeFlags.Ambient) {
return;
}
const constructor = findConstructorDeclaration(node);

7
src/compiler/commandLineParser.ts
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@ -277,6 +277,13 @@ namespace ts {
category: Diagnostics.Strict_Type_Checking_Options,
description: Diagnostics.Enable_strict_checking_of_function_types
},
{
name: "strictPropertyInitialization",
type: "boolean",
showInSimplifiedHelpView: true,
category: Diagnostics.Strict_Type_Checking_Options,
description: Diagnostics.Enable_strict_checking_of_property_initialization_in_classes
},
{
name: "noImplicitThis",
type: "boolean",

2
src/compiler/core.ts
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@ -1923,7 +1923,7 @@ namespace ts {
: moduleKind === ModuleKind.System;
}
export type StrictOptionName = "noImplicitAny" | "noImplicitThis" | "strictNullChecks" | "strictFunctionTypes" | "alwaysStrict";
export type StrictOptionName = "noImplicitAny" | "noImplicitThis" | "strictNullChecks" | "strictFunctionTypes" | "strictPropertyInitialization" | "alwaysStrict";
export function getStrictOptionValue(compilerOptions: CompilerOptions, flag: StrictOptionName): boolean {
return compilerOptions[flag] === undefined ? compilerOptions.strict : compilerOptions[flag];

4
src/compiler/diagnosticMessages.json
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@ -3330,6 +3330,10 @@
"category": "Message",
"code": 6186
},
"Enable strict checking of property initialization in classes.": {
"category": "Message",
"code": 6187
},
"Variable '{0}' implicitly has an '{1}' type.": {
"category": "Error",
"code": 7005