tree-sitter/spec/runtime/languages/javascript/operators.txt

142 lines
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Text

==========================================
parses function calls
==========================================
x.theMethod(5, 6);
---
(program (expression_statement (function_call
(property_access (identifier) (identifier))
(number) (number))))
==========================================
parses constructor calls
==========================================
var x = new Node(5, new Node(3, null));
---
(program (var_declaration
(identifier)
(constructor_call (function_call (identifier)
(number)
(constructor_call (function_call (identifier)
(number)
(null)))))))
==========================================
parses property access with dot notation
==========================================
object.property = "the-value";
print(object.property);
---
(program
(expression_statement (assignment
(property_access (identifier) (identifier))
(string)))
(expression_statement (function_call
(identifier)
(property_access (identifier) (identifier)))))
==========================================
parses property access across lines
==========================================
object
.someProperty
.otherProperty
---
(program (expression_statement
(property_access
(property_access (identifier) (identifier))
(identifier))))
===========================================
parses dynamic property access
==========================================
object[propertName()] = propertyValue();
print(object[propertyName()]);
---
(program
(expression_statement (assignment
(property_access (identifier) (function_call (identifier)))
(function_call (identifier))))
(expression_statement (function_call
(identifier)
(property_access (identifier) (function_call (identifier))))))
==========================================
parses ternary expressions
==========================================
print(isDone() ? stuff : otherStuff);
---
(program (expression_statement
(function_call
(identifier)
(ternary (function_call (identifier)) (identifier) (identifier)))))
==========================================
parses mathematical operators
==========================================
-a + b * c - d / +e
---
(program (expression_statement
(math_op
(math_op (identifier))
(math_op
(math_op (identifier) (identifier))
(math_op (identifier) (math_op (identifier)))))))
==========================================
parses boolean operators
=========================================
!a || !(b && c)
---
(program (expression_statement
(bool_op
(bool_op (identifier))
(bool_op
(expression (bool_op (identifier) (identifier)))))))
===========================================
parses the type operators
===========================================
print((x instanceof Array) || (typeof x == "string"))
---
(program (expression_statement (function_call (identifier)
(bool_op
(expression (instanceof_expression (identifier) (identifier)))
(expression (typeof_expression (bool_op (identifier) (string))))))))
============================================
parses the 'in' operator
===========================================
print(x in y)
---
(program (expression_statement (function_call
(identifier)
(in_expression (identifier) (identifier)))))
============================================
parses assignment operators
============================================
x += 1;
x -= 1;
x *= 2;
x /= 2;
---
(program
(expression_statement (assignment (identifier) (number)))
(expression_statement (assignment (identifier) (number)))
(expression_statement (assignment (identifier) (number)))
(expression_statement (assignment (identifier) (number))))
============================================
parses property access and operators
============================================
print(x.y.z && a.b.c)
---
(program (expression_statement (function_call (identifier)
(bool_op
(property_access (property_access (identifier) (identifier)) (identifier))
(property_access (property_access (identifier) (identifier)) (identifier))))))