refactor(compiler): misc + add a test for directives on inline templates

modules/@angular/compiler/src/template_parser/template_parser.ts

@@ -30,30 +30,28 @@ import {BindingParser, BoundProperty} from './binding_parser';
 import {AttrAst, BoundDirectivePropertyAst, BoundElementPropertyAst, BoundEventAst, BoundTextAst, DirectiveAst, ElementAst, EmbeddedTemplateAst, NgContentAst, PropertyBindingType, ReferenceAst, TemplateAst, TemplateAstVisitor, TextAst, VariableAst, templateVisitAll} from './template_ast';
 import {PreparsedElementType, preparseElement} from './template_preparser';
 
-
-
-// Group 1 = "bind-"
-// Group 2 = "let-"
-// Group 3 = "ref-/#"
-// Group 4 = "on-"
-// Group 5 = "bindon-"
-// Group 6 = "@"
-// Group 7 = the identifier after "bind-", "let-", "ref-/#", "on-", "bindon-" or "@"
-// Group 8 = identifier inside [()]
-// Group 9 = identifier inside []
-// Group 10 = identifier inside ()
 const BIND_NAME_REGEXP =
     /^(?:(?:(?:(bind-)|(let-)|(ref-|#)|(on-)|(bindon-)|(@))(.+))|\[\(([^\)]+)\)\]|\[([^\]]+)\]|\(([^\)]+)\))$/;
 
+// Group 1 = "bind-"
 const KW_BIND_IDX = 1;
+// Group 2 = "let-"
 const KW_LET_IDX = 2;
+// Group 3 = "ref-/#"
 const KW_REF_IDX = 3;
+// Group 4 = "on-"
 const KW_ON_IDX = 4;
+// Group 5 = "bindon-"
 const KW_BINDON_IDX = 5;
+// Group 6 = "@"
 const KW_AT_IDX = 6;
+// Group 7 = the identifier after "bind-", "let-", "ref-/#", "on-", "bindon-" or "@"
 const IDENT_KW_IDX = 7;
+// Group 8 = identifier inside [()]
 const IDENT_BANANA_BOX_IDX = 8;
+// Group 9 = identifier inside []
 const IDENT_PROPERTY_IDX = 9;
+// Group 10 = identifier inside ()
 const IDENT_EVENT_IDX = 10;
 
 const TEMPLATE_ELEMENT = 'template';
@@ -231,11 +229,8 @@ class TemplateParseVisitor implements html.Visitor {
   visitText(text: html.Text, parent: ElementContext): any {
     const ngContentIndex = parent.findNgContentIndex(TEXT_CSS_SELECTOR);
     const expr = this._bindingParser.parseInterpolation(text.value, text.sourceSpan);
-    if (expr) {
-      return new BoundTextAst(expr, ngContentIndex, text.sourceSpan);
-    } else {
-      return new TextAst(text.value, ngContentIndex, text.sourceSpan);
-    }
+    return expr ? new BoundTextAst(expr, ngContentIndex, text.sourceSpan) :
+                  new TextAst(text.value, ngContentIndex, text.sourceSpan);
   }
 
   visitAttribute(attribute: html.Attribute, context: any): any {

modules/@angular/compiler/test/template_parser/template_parser_spec.ts

@@ -667,6 +667,24 @@ Binding to attribute 'onEvent' is disallowed for security reasons ("<my-componen
           ]);
         });
 
+        it('should locate directives in inline templates', () => {
+          const dirTemplate =
+              CompileDirectiveMetadata
+                  .create({
+                    selector: 'template',
+                    type:
+                        createTypeMeta({reference: {filePath: someModuleUrl, name: 'onTemplate'}})
+                  })
+                  .toSummary();
+          expect(humanizeTplAst(parse('<div *ngIf="cond">', [ngIf, dirTemplate]))).toEqual([
+            [EmbeddedTemplateAst],
+            [DirectiveAst, ngIf],
+            [BoundDirectivePropertyAst, 'ngIf', 'cond'],
+            [DirectiveAst, dirTemplate],
+            [ElementAst, 'div'],
+          ]);
+        });
+
         it('should locate directives in event bindings', () => {
           const dirA =
               CompileDirectiveMetadata
@@ -1042,7 +1060,7 @@ Binding to attribute 'onEvent' is disallowed for security reasons ("<my-componen
           expect(elAst.providers[2].eager).toBe(false);
         });
 
-        it('should not mark dependencies accross embedded views as eager', () => {
+        it('should not mark dependencies across embedded views as eager', () => {
           const provider0 = createProvider('service0');
           const dirA = createDir('[dirA]', {providers: [provider0]});
           const dirB = createDir('[dirB]', {deps: ['service0']});
@@ -1243,14 +1261,18 @@ Reference "#a" is defined several times ("<div #a></div><div [ERROR ->]#a></div>
 
         it('should wrap the element with data-template attribute into an EmbeddedTemplateAST ',
            () => {
-             expect(humanizeTplAst(parse('<div data-template>', [
-             ]))).toEqual([[EmbeddedTemplateAst], [ElementAst, 'div']]);
+             expect(humanizeTplAst(parse('<div data-template>', []))).toEqual([
+               [EmbeddedTemplateAst],
+               [ElementAst, 'div'],
+             ]);
            });
 
         it('should parse bound properties', () => {
           expect(humanizeTplAst(parse('<div template="ngIf test">', [ngIf]))).toEqual([
-            [EmbeddedTemplateAst], [DirectiveAst, ngIf],
-            [BoundDirectivePropertyAst, 'ngIf', 'test'], [ElementAst, 'div']
+            [EmbeddedTemplateAst],
+            [DirectiveAst, ngIf],
+            [BoundDirectivePropertyAst, 'ngIf', 'test'],
+            [ElementAst, 'div'],
           ]);
         });
 
@@ -1329,6 +1351,7 @@ Reference "#a" is defined several times ("<div #a></div><div [ERROR ->]#a></div>
             [DirectiveAst, ngIf],
             [BoundDirectivePropertyAst, 'ngIf', 'test'],
             [ElementAst, 'div'],
+
           ]);
 
           // https://github.com/angular/angular/issues/13800