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Added experiment flag.

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This commit is contained in:
Ron Buckton
2017-02-27 12:06:31 -08:00
parent 6a9e7e50e5
commit e7e26ce10b
12 changed files with 46 additions and 4 deletions
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src/compiler/checker.ts
+16
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@@ -13183,6 +13183,10 @@ namespace ts {
function checkPropertyAccessExpressionOrQualifiedName(node: PropertyAccessExpression | QualifiedName, left: Expression | QualifiedName, right: Identifier) {
const propagateNull = node.flags & NodeFlags.PropagateNull;
if (propagateNull && !compilerOptions.experimentalNullPropagation) {
error(node, Diagnostics.Experimental_support_for_null_propagation_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalNullPropagation_option_to_remove_this_warning);
}
const objectType = propagateNull ? checkExpression(left) : checkNonNullExpression(left);
const type = propagateNull ? getNonNullableType(objectType) : objectType;
const propagatingType = propagateNull ? getNullPropagatingType(objectType) : neverType;
@@ -13310,6 +13314,10 @@ namespace ts {
checkGrammarNullPropagation(node);
const propagateNull = node.flags & NodeFlags.PropagateNull;
if (propagateNull && !compilerOptions.experimentalNullPropagation) {
error(node, Diagnostics.Experimental_support_for_null_propagation_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalNullPropagation_option_to_remove_this_warning);
}
const objectType = propagateNull ? checkExpression(node.expression) : checkNonNullExpression(node.expression);
const type = propagateNull ? getNonNullableType(objectType) : objectType;
const propagatingType = propagateNull ? getNullPropagatingType(objectType) : neverType;
@@ -14344,6 +14352,10 @@ namespace ts {
const propagateNull = node.flags & NodeFlags.PropagateNull;
if (propagateNull && !compilerOptions.experimentalNullPropagation) {
error(node, Diagnostics.Experimental_support_for_null_propagation_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalNullPropagation_option_to_remove_this_warning);
}
const funcType = propagateNull ? checkExpression(node.expression) : checkNonNullExpression(node.expression);
const type = propagateNull ? getNonNullableType(funcType) : funcType;
if (type === silentNeverType) {
@@ -14423,6 +14435,10 @@ namespace ts {
}
const propagateNull = node.flags & NodeFlags.PropagateNull;
if (propagateNull && !compilerOptions.experimentalNullPropagation) {
error(node, Diagnostics.Experimental_support_for_null_propagation_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalNullPropagation_option_to_remove_this_warning);
}
const funcType = propagateNull ? checkExpression(node.expression) : checkNonNullExpression(node.expression);
const type = propagateNull ? getNonNullableType(funcType) : funcType;
if (type === silentNeverType) {
src/compiler/commandLineParser.ts
+6
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@@ -299,6 +299,12 @@ namespace ts {
experimental: true,
description: Diagnostics.Enables_experimental_support_for_emitting_type_metadata_for_decorators
},
{
name: "experimentalNullPropagation",
type: "boolean",
experimental: true,
description: Diagnostics.Enables_experimental_support_for_null_propagation
},
{
name: "moduleResolution",
type: createMapFromTemplate({
src/compiler/diagnosticMessages.json
+8 -4
View File
@@ -827,6 +827,10 @@
"category": "Error",
"code": 1254
},
"Experimental support for null propagation is a feature that is subject to change in a future release. Set the 'experimentalNullPropagation' option to remove this warning.": {
"category": "Error",
"code": 1255
},
"'with' statements are not allowed in an async function block.": {
"category": "Error",
"code": 1300
@@ -2721,10 +2725,6 @@
"category": "Message",
"code": 6066
},
"Enables experimental support for ES7 async functions.": {
"category": "Message",
"code": 6068
},
"Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6).": {
"category": "Message",
"code": 6069
@@ -3045,6 +3045,10 @@
"category": "Message",
"code": 6149
},
"Enables experimental support for 'null propagation'.": {
"category": "Message",
"code": 6150
},
"Variable '{0}' implicitly has an '{1}' type.": {
"category": "Error",
"code": 7005
src/compiler/program.ts
+8
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@@ -986,6 +986,14 @@ namespace ts {
const typeAssertionExpression = <TypeAssertion>node;
diagnostics.push(createDiagnosticForNode(typeAssertionExpression.type, Diagnostics.type_assertion_expressions_can_only_be_used_in_a_ts_file));
return;
case SyntaxKind.PropertyAccessExpression:
case SyntaxKind.ElementAccessExpression:
case SyntaxKind.CallExpression:
case SyntaxKind.NewExpression:
if (node.flags & NodeFlags.PropagateNull && !options.experimentalNullPropagation) {
diagnostics.push(createDiagnosticForNode(node, Diagnostics.Experimental_support_for_null_propagation_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalNullPropagation_option_to_remove_this_warning));
}
break;
}
const prevParent = parent;
src/compiler/types.ts
+1
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@@ -3294,6 +3294,7 @@
emitBOM?: boolean;
emitDecoratorMetadata?: boolean;
experimentalDecorators?: boolean;
experimentalNullPropagation?: boolean;
forceConsistentCasingInFileNames?: boolean;
/*@internal*/help?: boolean;
importHelpers?: boolean;
tests/cases/conformance/emitter/es2015/safeNavigation/emitter.safeNavigation.es2015.ts
+1
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@@ -2,6 +2,7 @@
// @lib: esnext
// @module: commonjs
// @experimentalDecorators: true
// @experimentalNullPropagation: true
// @filename: declarations.d.ts
declare var x: any;
declare var y: any;
tests/cases/conformance/emitter/es3/safeNavigation/emitter.safeNavigation.es3.ts
+1
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@@ -2,6 +2,7 @@
// @lib: esnext
// @module: commonjs
// @experimentalDecorators: true
// @experimentalNullPropagation: true
// @filename: declarations.d.ts
declare var x: any;
declare var y: any;
tests/cases/conformance/emitter/es5/safeNavigation/emitter.safeNavigation.es5.ts
+1
View File
@@ -2,6 +2,7 @@
// @lib: esnext
// @module: commonjs
// @experimentalDecorators: true
// @experimentalNullPropagation: true
// @filename: declarations.d.ts
declare var x: any;
declare var y: any;
tests/cases/conformance/emitter/esnext/safeNavigation/emitter.safeNavigation.esnext.ts
+1
View File
@@ -2,6 +2,7 @@
// @lib: esnext
// @module: commonjs
// @experimentalDecorators: true
// @experimentalNullPropagation: true
// @filename: declarations.d.ts
declare var x: any;
declare var y: any;
tests/cases/conformance/parser/ecmascriptnext/safeNavigation/parser.safeNavigation.esnext.ts
+1
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@@ -3,6 +3,7 @@
// @noEmit: true
// @module: commonjs
// @experimentalDecorators: true
// @experimentalNullPropagation: true
// @filename: declarations.d.ts
declare var x: any;
declare var y: any;
tests/cases/conformance/types/safeNavigation/types.safeNavigation.esnext.1.ts
+1
View File
@@ -3,6 +3,7 @@
// @noEmit: true
// @module: commonjs
// @strictNullChecks: false
// @experimentalNullPropagation: true
declare const x1: (() => number) | undefined | null;
declare const x2: { y: (() => number) | undefined | null; };
declare const x3: { y: (() => number) | undefined | null; } | undefined | null;
tests/cases/conformance/types/safeNavigation/types.safeNavigation.esnext.2.ts
+1
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@@ -3,6 +3,7 @@
// @noEmit: true
// @module: commonjs
// @strictNullChecks: true
// @experimentalNullPropagation: true
declare const x1: (() => number) | undefined | null;
declare const x2: { y: (() => number) | undefined | null; };
declare const x3: { y: (() => number) | undefined | null; } | undefined | null;