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Add Angular 21.2 template syntax: instanceof operator and arrow functions #41

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Merged
princemaple merged 4 commits into from
Mar 26, 2026
Merged

Add Angular 21.2 template syntax: instanceof operator and arrow functions #41

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bff5f62
Initial plan
Copilot Mar 24, 2026
926c575
Support instanceof operator and arrow functions from Angular 21.2
Copilot Mar 24, 2026
c248aa4
Scope arrow params as variable.parameter.ngx, use keyword.declaration…
Copilot Mar 24, 2026
54f53e4
Update NgxHTML.sublime-syntax
princemaple Mar 24, 2026
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38 changes: 37 additions & 1 deletion NgxHTML.sublime-syntax
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Original file line number Diff line number Diff line change
Expand Up @@ -418,6 +418,7 @@ contexts:
ng-expressions:
# https://angular.dev/guide/templates/expression-syntax
- include: ng-arrays
- include: ng-arrow-functions
- include: ng-groups
- include: ng-objects
- include: ng-function-calls
Expand Down Expand Up @@ -458,6 +459,39 @@ contexts:
pop: 1
- include: ng-expressions

###[ ANGULAR ARROW FUNCTIONS ]#################################################

ng-arrow-functions:
# single param without parens: x =>
- match: '{{ident_name}}(?=\s*=>)'
scope: variable.parameter.ngx
# grouped params: (x) => or (x, y) =>
- match: \(
scope: punctuation.section.group.begin.ngx
branch_point: ng-arrow-params
branch:
- ng-arrow-params-body
- ng-group-body

ng-arrow-params-body:
- meta_scope: meta.group.ngx
- match: \)
scope: punctuation.section.group.end.ngx
set: ng-after-arrow-params
- match: ','
scope: punctuation.separator.parameters.ngx
- match: '{{ident_name}}'
scope: variable.parameter.ngx
- match: (?=\S)
fail: ng-arrow-params

ng-after-arrow-params:
- match: '=>'
scope: keyword.declaration.function.arrow.ngx
pop: 1
- match: (?=\S)
fail: ng-arrow-params

###[ ANGULAR OBJECTS ]#########################################################

ng-objects:
Expand Down Expand Up @@ -561,6 +595,8 @@ contexts:
scope: punctuation.separator.sequence.ngx
- match: ';'
scope: punctuation.terminator.expression.ngx
- match: '=>'
Comment thread
princemaple marked this conversation as resolved.
scope: keyword.declaration.function.arrow.ngx
- match: (?:\*\*|&&|\|\||\?\?|[-+*/%])=
scope: keyword.operator.assignment.augmented.ngx
- match: '[!=]==?|[<>]=?'
Expand All @@ -578,7 +614,7 @@ contexts:
push: ng-ternary-expression
- match: in{{ident_break}}
scope: keyword.operator.comparison.ngx
- match: (?:typeof|void){{ident_break}}
- match: (?:typeof|void|instanceof){{ident_break}}
scope: keyword.operator.type.ngx

ng-ternary-expression:
Expand Down
27 changes: 27 additions & 0 deletions tests/syntax_test_scopes.component.html
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Expand Up @@ -823,6 +823,33 @@
<!-- ^^^^ keyword.operator.type.ngx -->
<!-- ^^ meta.number.integer.decimal.ngx constant.numeric.value.ngx -->

{{ obj instanceof SomeClass }}
<!-- ^^^ variable.other.readwrite.ngx -->
<!-- ^^^^^^^^^^ keyword.operator.type.ngx -->
<!-- ^^^^^^^^^ variable.other.readwrite.ngx -->

<!-- arrow functions -->
{{ (x) => x * 2 }}
<!-- ^ punctuation.section.group.begin.ngx -->
<!-- ^ variable.parameter.ngx -->
<!-- ^ punctuation.section.group.end.ngx -->
<!-- ^^ keyword.declaration.function.arrow.ngx -->
<!-- ^ variable.other.readwrite.ngx -->
<!-- ^ keyword.operator.arithmetic.ngx -->

{{ items.filter(item => item.active) }}
<!-- ^^^^^ variable.other.object.ngx -->
<!-- ^ punctuation.accessor.ngx -->
<!-- ^^^^^^ variable.function.method.ngx -->
<!-- ^^^^^^^^^^^^^^^^^^^^^ meta.function-call.arguments.ngx -->
<!-- ^ punctuation.section.arguments.begin.ngx -->
<!-- ^^^^ variable.parameter.ngx -->
<!-- ^^ keyword.declaration.function.arrow.ngx -->
<!-- ^^^^ variable.other.object.ngx -->
<!-- ^ punctuation.accessor.ngx -->
<!-- ^^^^^^ variable.other.member.ngx -->
<!-- ^ punctuation.section.arguments.end.ngx -->

<!-- property subscription -->
{{ person['name'][0] = "Mirabel" }}
<!--^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ meta.embedded.expression.ngx.html -->
Expand Down
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