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Merged
HarshK97 merged 1 commit into from
Aug 8, 2026
Merged

feat(treesitter): add ts/tsx rules and language #67

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22 changes: 22 additions & 0 deletions internal/treesitter/parser_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -90,6 +90,17 @@ func TestParse(t *testing.T) {
}
})

t.Run("valid typescript source", func(t *testing.T) {
src := []byte(`interface User { id: number; name: string; } const u: User = { id: 1, name: "Alice" };`)
ast, err := Parse(src, "main.ts")
if err != nil {
t.Fatalf("Parse(): unexpected error: %v", err)
}
if ast == nil {
t.Error("Parse(): expected non-nil AST root")
}
})

t.Run("valid jsx source", func(t *testing.T) {
src := []byte(`const App = () => <div className="app">Hello</div>;`)
ast, err := Parse(src, "App.jsx")
Expand All @@ -101,6 +112,17 @@ func TestParse(t *testing.T) {
}
})

t.Run("valid tsx source", func(t *testing.T) {
src := []byte(`export const App = (): JSX.Element => <div><h1>Hello World</h1></div>;`)
ast, err := Parse(src, "main.tsx")
if err != nil {
t.Fatalf("Parse(): unexpected error: %v", err)
}
if ast == nil {
t.Error("Parse(): expected non-nil AST root")
}
})

t.Run("unknown extension", func(t *testing.T) {
src := []byte(`some text`)
ast, err := Parse(src, "main.xyz")
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15 changes: 15 additions & 0 deletions internal/treesitter/rules_test.go
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Expand Up @@ -59,6 +59,21 @@ func TestRulesAliased(t *testing.T) {
"type", "interface", "namespace", "enum", "abstract", "readonly",
},
},
{
lang: "tsx",
operators: []string{
"+", "-", "*", "/", "%", "**",
"==", "!=", "===", "!==", "<", "<=", ">", ">=",
"&&", "||", "??",
"=", "+=", "-=", "*=", "/=", "%=", "**=",
"&&=", "||=", "??=",
"&", "|", "^", "<<", ">>", ">>>",
"!", "~", "++", "--",
"=>",
"type", "interface", "namespace", "enum", "abstract", "readonly",
"/>", "</",
},
},
}

for _, tt := range tests {
Expand Down
151 changes: 151 additions & 0 deletions internal/treesitter/tsx/rules.yml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,151 @@
flattened:
- string
- template_string
- comment
aliased:
# Comparison operators
"==": comparison_operator_literal
"!=": comparison_operator_literal
"===": comparison_operator_literal
"!==": comparison_operator_literal
"<": comparison_operator_literal
"<=": comparison_operator_literal
">": comparison_operator_literal
">=": comparison_operator_literal

# Logical operators
"&&": logical_operator_literal
"||": logical_operator_literal
"??": logical_operator_literal

# Assignment operators
"=": assignment_operator_literal
"+=": assignment_operator_literal
"-=": assignment_operator_literal
"*=": assignment_operator_literal
"/=": assignment_operator_literal
"%=": assignment_operator_literal
"**=": assignment_operator_literal
"&&=": assignment_operator_literal
"||=": assignment_operator_literal
"??=": assignment_operator_literal
"&=": assignment_operator_literal
"|=": assignment_operator_literal
"^=": assignment_operator_literal
"<<=": assignment_operator_literal
">>=": assignment_operator_literal
">>>=": assignment_operator_literal

# Arithmetic operators
"+": arithmetic_operator_literal
"-": arithmetic_operator_literal
"*": arithmetic_operator_literal
"/": arithmetic_operator_literal
"%": arithmetic_operator_literal
"**": arithmetic_operator_literal

# Bitwise operators
"&": bitwise_operator_literal
"|": bitwise_operator_literal
"^": bitwise_operator_literal
"<<": bitwise_operator_literal
">>": bitwise_operator_literal
">>>": bitwise_operator_literal

# Unary / Update operators
"!": unary_operator_literal
"~": bitwise_operator_literal
"++": update_operator_literal
"--": update_operator_literal
"=>": arrow

# Keywords
"if": "condition_declaration"
"else": "else"
"for": "for"
"while": "while"
"do": "do"
"switch": "switch"
"case": "case"
"default": "default"
"try": "try"
"catch": "catch"
"finally": "finally"
"throw": "throw"
"return": "return"
"break": "break"
"continue": "continue"
"function": "function"
"class": "class"
"const": "const"
"let": "let"
"var": "var"
"type": "type"
"interface": "interface"
"namespace": "namespace"
"enum": "enum"
"abstract": "abstract"
"readonly": "readonly"
"export": "export"
"import": "import"
"from": "from"
"as": "as"
"async": "async"
"await": "await"

# Punctuation
".": dot
":": colon
",": comma
";": semicolon
"?.": optional_chaining

# JSX element tags
"/>": jsx_self_closing_tag_slash_gt
"</": jsx_closing_tag_lt_slash

ignored:
- "\n"
- "escape_sequence"

scaffolding:
- program
- statement_block
- formal_parameters
- arguments
- parenthesized_expression
- expression_statement
- function_declaration
- method_definition
- arrow_function
- class_declaration
- class_body
- interface_declaration
- interface_body
- enum_declaration
- enum_body
- type_alias_declaration
- if_statement
- for_statement
- for_in_statement
- switch_statement
- switch_body
- switch_case
- try_statement
- catch_clause
- import_statement
- export_statement
- object
- array
- type_arguments
- type_parameters
# JSX Scaffolding
- jsx_element
- jsx_self_closing_element
- jsx_opening_element
- jsx_closing_element
- jsx_fragment
- jsx_opening_fragment
- jsx_closing_fragment
- jsx_attribute
- jsx_expression
137 changes: 137 additions & 0 deletions internal/treesitter/typescript/rules.yml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,137 @@
flattened:
- string
- template_string
- comment
aliased:
# Comparison operators
"==": comparison_operator_literal
"!=": comparison_operator_literal
"===": comparison_operator_literal
"!==": comparison_operator_literal
"<": comparison_operator_literal
"<=": comparison_operator_literal
">": comparison_operator_literal
">=": comparison_operator_literal

# Logical operators
"&&": logical_operator_literal
"||": logical_operator_literal
"??": logical_operator_literal

# Assignment operators
"=": assignment_operator_literal
"+=": assignment_operator_literal
"-=": assignment_operator_literal
"*=": assignment_operator_literal
"/=": assignment_operator_literal
"%=": assignment_operator_literal
"**=": assignment_operator_literal
"&&=": assignment_operator_literal
"||=": assignment_operator_literal
"??=": assignment_operator_literal
"&=": assignment_operator_literal
"|=": assignment_operator_literal
"^=": assignment_operator_literal
"<<=": assignment_operator_literal
">>=": assignment_operator_literal
">>>=": assignment_operator_literal

# Arithmetic operators
"+": arithmetic_operator_literal
"-": arithmetic_operator_literal
"*": arithmetic_operator_literal
"/": arithmetic_operator_literal
"%": arithmetic_operator_literal
"**": arithmetic_operator_literal

# Bitwise operators
"&": bitwise_operator_literal
"|": bitwise_operator_literal
"^": bitwise_operator_literal
"<<": bitwise_operator_literal
">>": bitwise_operator_literal
">>>": bitwise_operator_literal

# Unary / Update operators
"!": unary_operator_literal
"~": bitwise_operator_literal
"++": update_operator_literal
"--": update_operator_literal
"=>": arrow

# Keywords
"if": "condition_declaration"
"else": "else"
"for": "for"
"while": "while"
"do": "do"
"switch": "switch"
"case": "case"
"default": "default"
"try": "try"
"catch": "catch"
"finally": "finally"
"throw": "throw"
"return": "return"
"break": "break"
"continue": "continue"
"function": "function"
"class": "class"
"const": "const"
"let": "let"
"var": "var"
"type": "type"
"interface": "interface"
"namespace": "namespace"
"enum": "enum"
"abstract": "abstract"
"readonly": "readonly"
"export": "export"
"import": "import"
"from": "from"
"as": "as"
"async": "async"
"await": "await"

# Punctuation
".": dot
":": colon
",": comma
";": semicolon
"?.": optional_chaining

ignored:
- "\n"
- "escape_sequence"

scaffolding:
- program
- statement_block
- formal_parameters
- arguments
- parenthesized_expression
- expression_statement
- function_declaration
- method_definition
- arrow_function
- class_declaration
- class_body
- interface_declaration
- interface_body
- enum_declaration
- enum_body
- type_alias_declaration
- if_statement
- for_statement
- for_in_statement
- switch_statement
- switch_body
- switch_case
- try_statement
- catch_clause
- import_statement
- export_statement
- object
- array
- type_arguments
- type_parameters
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