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C# style expression parsing and evaluation in Go.

Operator Precedence

Symbol	Operation	Associativity
[ ] ( ) . ++ -- (postfix)	Expression	Left to right
& * + - ~ ! ++ -- (prefix)	Unary	Right to left
* / %	Multiplicative	Left to right
+ -	Additive	Left to right
<< >>	Bitwise-shift	Left to right
< > <= >=	Relational	Left to right
== !=	Equality	Left to right
&	Bitwise-AND	Left to right
^	Bitwise-XOR	Left to right
|	Bitwise-OR	Left to right
&&	Logical-AND	Left to right
||	Logical-OR	Left to right
? : (Ternary)	Conditional	Right to left

• Operators are listed in order of highest to lowest precedence. Multiple symbols on the same line indicate equal precedence.

Expressions

The following are not supported and are considered out of scope:

• Blocks (sequences of expressions where variables can be defined)
• Indexing (properties and arrays)
• Labels and Goto
• Lambda
• Loops
• Members (accessing a field or property)
• Constructors (instantiating a new object)
• Switches
• Try/Catch

That leaves these as starters:

• Binary
• Unary
• Conditional (ternary)
• Default (default value of a type)
• Parameter