add support for compiler option "-preview=shortenedMethods"

msbuild/dbuild/CompileD.cs

@@ -77,6 +77,9 @@ public CompileD()
 		public bool PreviewMarkdown { get { return opts.PreviewMarkdown; } set { opts.PreviewMarkdown = value; } }
 		public bool PreviewIn { get { return opts.PreviewIn; } set { opts.PreviewIn = value; } }
 		public bool PreviewInclusiveInContracts { get { return opts.PreviewInclusiveInContracts; } set { opts.PreviewInclusiveInContracts = value; } }
+		public bool PreviewShortenedMethods { get { return opts.PreviewShortenedMethods; } set { opts.PreviewShortenedMethods = value; } }
+		public bool PreviewFixImmutableConv { get { return opts.PreviewFixImmutableConv; } set { opts.PreviewFixImmutableConv = value; } }
+		public bool PreviewSystemVariables { get { return opts.PreviewSystemVariables; } set { opts.PreviewSystemVariables = value; } }
 		public bool TransitionVMarkdown { get { return opts.TransitionVMarkdown; } set { opts.TransitionVMarkdown = value; } }
 		public bool TransitionField { get { return opts.TransitionField; } set { opts.TransitionField = value; } }
 		public bool TransitionCheckImports { get { return opts.TransitionCheckImports; } set { opts.TransitionCheckImports = value; } }

msbuild/dbuild/CompileDOpt.cs

@@ -101,6 +101,9 @@ public CompileDOptions(IToolSwitchProvider provider)
 			this.switchOrderList.Add("PreviewMarkdown");
 			this.switchOrderList.Add("PreviewIn");
 			this.switchOrderList.Add("PreviewInclusiveInContracts");
+			this.switchOrderList.Add("PreviewShortenedMethods");
+			this.switchOrderList.Add("PreviewFixImmutableConv");
+			this.switchOrderList.Add("PreviewSystemVariables");
 			this.switchOrderList.Add("TransitionVMarkdown");
 			this.switchOrderList.Add("TransitionField");
 			this.switchOrderList.Add("TransitionCheckImports");
@@ -646,11 +649,44 @@ public bool PreviewInclusiveInContracts
 			set
 			{
 				SetBoolProperty("PreviewInclusiveInContracts", "Preview inclusiveincontracts",
-								"''in' contracts of overridden methods must be a superset of parent contract (-preview=inclusiveincontracts)",
+								"'in' contracts of overridden methods must be a superset of parent contract (-preview=inclusiveincontracts)",
 								"-preview=inclusiveincontracts", value);
 			}
 		}
 
+		public bool PreviewShortenedMethods
+		{
+			get { return GetBoolProperty("PreviewShortenedMethods"); }
+			set
+			{
+				SetBoolProperty("PreviewShortenedMethods", "Preview shortened methods",
+								"allow use of => for methods and top-level functions in addition to lambdas (-preview=shortenedMethods)",
+								"-preview=shortenedMethods", value);
+			}
+		}
+
+		public bool PreviewFixImmutableConv
+		{
+			get { return GetBoolProperty("PreviewFixImmutableConv"); }
+			set
+			{
+				SetBoolProperty("PreviewFixImmutableConv", "Preview disallowing unsound immutable conversions",
+								"disallow unsound immutable conversions that were formerly incorrectly permitted (-preview=fixImmutableConv)",
+								"-preview=fixImmutableConv", value);
+			}
+		}
+
+		public bool PreviewSystemVariables
+		{
+			get { return GetBoolProperty("PreviewSystemVariables"); }
+			set
+			{
+				SetBoolProperty("PreviewSystemVariables", "Preview system variables",
+								"disable access to variables marked '@system' from @safe code (-preview=systemVariables)",
+								"-preview=systemVariables", value);
+			}
+		}
+
 		public bool TransitionVMarkdown
         {
             get { return GetBoolProperty("TransitionVMarkdown"); }

msbuild/dmd.xml

@@ -206,6 +206,12 @@
                   Description="'in' on parameters means `scope const [ref]` (dmd 2.092+) and accepts rvalues (dmd 2.094+)" />
     <BoolProperty Name="PreviewInclusiveInContracts" Category="Language" DisplayName="Preview inclusive in contracts" Switch="-preview=inclusiveincontracts"
                   Description="'in' contracts of overridden methods must be a superset of parent contract (dmd 2.095+)" />
+    <BoolProperty Name="PreviewShortenedMethods" Category="Language" DisplayName="Preview shortened method/function syntax" Switch="-preview=shortenedMethods"
+                  Description="allow use of => for methods and top-level functions in addition to lambdas (dmd 2.101+)" />
+    <BoolProperty Name="PreviewFixImmutableConv" Category="Language" DisplayName="Preview disallowing unsound immutable conversions" Switch="-preview=fixImmutableConv"
+                  Description="disallow unsound immutable conversions that were formerly incorrectly permitted (dmd 2.101+)" />
+    <BoolProperty Name="PreviewSystemVariables" Category="Language" DisplayName="Preview system variables" Switch="-preview=systemVariables"
+                  Description="disable access to variables marked '@system' from @safe code (dmd 2.102+)" />
 
     <BoolProperty Name="RevertImport" Category="Language" DisplayName="Revert import" Switch="-revert=import"
               Description="revert to single phase name lookup. (dmd 2.085+)" />

msbuild/ldc.xml

@@ -198,6 +198,12 @@
                   Description="'in' on parameters means `scope const [ref]` and accepts rvalues" />
     <BoolProperty Name="PreviewInclusiveInContracts" Category="Language" DisplayName="Preview inclusive in contracts" Switch="-preview=inclusiveincontracts"
                   Description="'in' contracts of overridden methods must be a superset of parent contract" />
+    <BoolProperty Name="PreviewShortenedMethods" Category="Language" DisplayName="Preview shortened method/function syntax" Switch="-preview=shortenedMethods"
+                  Description="allow use of => for methods and top-level functions in addition to lambdas (dmd 2.101+)" />
+    <BoolProperty Name="PreviewFixImmutableConv" Category="Language" DisplayName="Preview disallowing unsound immutable conversions" Switch="-preview=fixImmutableConv"
+                  Description="disallow unsound immutable conversions that were formerly incorrectly permitted (dmd 2.101+)" />
+    <BoolProperty Name="PreviewSystemVariables" Category="Language" DisplayName="Preview system variables" Switch="-preview=systemVariables"
+                  Description="disable access to variables marked '@system' from @safe code (dmd 2.102+)" />
 
     <BoolProperty Name="RevertImport" Category="Language" DisplayName="Revert import" Switch="-revert=import"
                   Description="revert to single phase name lookup." />

visuald/config.d

@@ -203,6 +203,7 @@ class ProjectOptions
 	bool preview_markdown;         // enable Markdown replacements in Ddoc
 	bool preview_in;               // `in` on parameters means `scope const [ref]` and accepts rvalues
 	bool preview_inclincontracts;  // 'in' contracts of overridden methods must be a superset of parent contract
+	bool preview_shortenedMethods; // allow => in normal function declarations
 	bool transition_vmarkdown;     // list instances of Markdown replacements in Ddoc
 
 	ubyte compiler;		// 0: DMD, 1: GDC, 2:LDC
@@ -486,6 +487,8 @@ class ProjectOptions
 			cmd ~= " -preview=in";
 		if (preview_inclincontracts)
 			cmd ~= " -preview=inclusiveincontracts";
+		if (preview_shortenedMethods)
+			cmd ~= " -preview=shortenedMethods";
 		if (transition_vmarkdown)
 			cmd ~= " -transition=vmarkdown";
 
@@ -1473,6 +1476,7 @@ class ProjectOptions
 		elem ~= new xml.Element("preview_nosharedaccess", toElem(preview_nosharedaccess));
 		elem ~= new xml.Element("preview_in", toElem(preview_in));
 		elem ~= new xml.Element("preview_inclincontracts", toElem(preview_inclincontracts));
+		elem ~= new xml.Element("preview_shortenedMethods", toElem(preview_shortenedMethods));
 		elem ~= new xml.Element("transition_vmarkdown", toElem(transition_vmarkdown));
 
 		elem ~= new xml.Element("compiler", toElem(compiler));
@@ -1632,6 +1636,7 @@ class ProjectOptions
 		fromElem(elem, "preview_markdown", preview_markdown);
 		fromElem(elem, "preview_in", preview_in);
 		fromElem(elem, "preview_inclincontracts", preview_inclincontracts);
+		fromElem(elem, "preview_shortenedMethods", preview_shortenedMethods);
 		fromElem(elem, "transition_vmarkdown", transition_vmarkdown);
 
 		fromElem(elem, "compiler", compiler);

visuald/propertypage.d

@@ -1299,8 +1299,9 @@ class DmdLanguagePropertyPage : ProjectPropertyPage
 		AddControl("", mPreview_nosharedaccess  = new CheckBox(mCanvas, "disable access to shared memory objects (DMD 2.088+)"));
 		AddControl("", mPreview_in              = new CheckBox(mCanvas, "'in' on parameters means `scope const [ref]` (dmd 2.092+) and accepts rvalues (dmd 2.094+)"));
 		AddControl("", mPreview_inclInContracts = new CheckBox(mCanvas, "'in' contracts of overridden methods must be a superset of parent contract (dmd 2.095+)"));
+		AddControl("", mPreview_shortenedMethods = new CheckBox(mCanvas, "shortened method syntax: allow => in normal function declarations (dmd 2.101+)"));
 		AddHorizontalLine();
-		AddControl("", mTransition_import       = new CheckBox(mCanvas, "revert to single phase name lookup (DMD 2.071 - 2.087)"));
+		AddControl("", mRevert_import           = new CheckBox(mCanvas, "revert to single phase name lookup (DMD 2.071 - 2.087)"));
 		AddControl("", mTransition_dtorfields   = new CheckBox(mCanvas, "destruct fields of partially constructed objects (DMD 2.083+)"));
 		AddControl("", mTransition_intpromote   = new CheckBox(mCanvas, "fix integral promotions for unary + - ~ operators (DMD 2.078+)"));
 		AddControl("", mTransition_fixAliasThis = new CheckBox(mCanvas, "when a symbol is resolved, check alias this scope before upper scopes (DMD 2.084+)"));
@@ -1313,14 +1314,15 @@ class DmdLanguagePropertyPage : ProjectPropertyPage
 		mDip1000.setChecked(options.dip1000);
 		mDip1008.setChecked(options.dip1008);
 		mDip1021.setChecked(options.dip1021);
-		mTransition_import.setChecked(options.revert_import);
+		mRevert_import.setChecked(options.revert_import);
 		mTransition_dtorfields.setChecked(options.preview_dtorfields);
 		mTransition_intpromote.setChecked(options.preview_intpromote);
 		mTransition_fixAliasThis.setChecked(options.preview_fixAliasThis);
 		mPreview_rvaluerefparam.setChecked(options.preview_rvaluerefparam);
 		mPreview_nosharedaccess.setChecked(options.preview_nosharedaccess);
 		mPreview_in.setChecked(options.preview_in);
 		mPreview_inclInContracts.setChecked(options.preview_inclincontracts);
+		mPreview_shortenedMethods.setChecked(options.preview_shortenedMethods);
 	}
 
 	override int DoApply(ProjectOptions options, ProjectOptions refoptions)
@@ -1331,14 +1333,15 @@ class DmdLanguagePropertyPage : ProjectPropertyPage
 		changes += changeOption(mDip1000.isChecked(), options.dip1000, refoptions.dip1000);
 		changes += changeOption(mDip1008.isChecked(), options.dip1008, refoptions.dip1008);
 		changes += changeOption(mDip1021.isChecked(), options.dip1021, refoptions.dip1021);
-		changes += changeOption(mTransition_import.isChecked(), options.revert_import, refoptions.revert_import);
+		changes += changeOption(mRevert_import.isChecked(), options.revert_import, refoptions.revert_import);
 		changes += changeOption(mTransition_dtorfields.isChecked(), options.preview_dtorfields, refoptions.preview_dtorfields);
 		changes += changeOption(mTransition_intpromote.isChecked(), options.preview_intpromote, refoptions.preview_intpromote);
 		changes += changeOption(mTransition_fixAliasThis.isChecked(), options.preview_fixAliasThis, refoptions.preview_fixAliasThis);
 		changes += changeOption(mPreview_rvaluerefparam.isChecked(), options.preview_rvaluerefparam, refoptions.preview_rvaluerefparam);
 		changes += changeOption(mPreview_nosharedaccess.isChecked(), options.preview_nosharedaccess, refoptions.preview_nosharedaccess);
 		changes += changeOption(mPreview_in.isChecked(), options.preview_in, refoptions.preview_in);
 		changes += changeOption(mPreview_inclInContracts.isChecked(), options.preview_inclincontracts, refoptions.preview_inclincontracts);
+		changes += changeOption(mPreview_shortenedMethods.isChecked(), options.preview_shortenedMethods, refoptions.preview_shortenedMethods);
 		return changes;
 	}
 
@@ -1351,7 +1354,8 @@ class DmdLanguagePropertyPage : ProjectPropertyPage
 	CheckBox mPreview_nosharedaccess;
 	CheckBox mPreview_in;
 	CheckBox mPreview_inclInContracts;
-	CheckBox mTransition_import;
+	CheckBox mPreview_shortenedMethods;
+	CheckBox mRevert_import;
 	CheckBox mTransition_dtorfields;
 	CheckBox mTransition_intpromote;
 	CheckBox mTransition_fixAliasThis;