46 lines
1.2 KiB
Go
46 lines
1.2 KiB
Go
package parser
|
|
|
|
import (
|
|
"github.com/hashicorp/hil/ast"
|
|
"github.com/hashicorp/hil/scanner"
|
|
)
|
|
|
|
var binaryOps []map[scanner.TokenType]ast.ArithmeticOp
|
|
|
|
func init() {
|
|
// This operation table maps from the operator's scanner token type
|
|
// to the AST arithmetic operation. All expressions produced from
|
|
// binary operators are *ast.Arithmetic nodes.
|
|
//
|
|
// Binary operator groups are listed in order of precedence, with
|
|
// the *lowest* precedence first. Operators within the same group
|
|
// have left-to-right associativity.
|
|
binaryOps = []map[scanner.TokenType]ast.ArithmeticOp{
|
|
{
|
|
scanner.OR: ast.ArithmeticOpLogicalOr,
|
|
},
|
|
{
|
|
scanner.AND: ast.ArithmeticOpLogicalAnd,
|
|
},
|
|
{
|
|
scanner.EQUAL: ast.ArithmeticOpEqual,
|
|
scanner.NOTEQUAL: ast.ArithmeticOpNotEqual,
|
|
},
|
|
{
|
|
scanner.GT: ast.ArithmeticOpGreaterThan,
|
|
scanner.GTE: ast.ArithmeticOpGreaterThanOrEqual,
|
|
scanner.LT: ast.ArithmeticOpLessThan,
|
|
scanner.LTE: ast.ArithmeticOpLessThanOrEqual,
|
|
},
|
|
{
|
|
scanner.PLUS: ast.ArithmeticOpAdd,
|
|
scanner.MINUS: ast.ArithmeticOpSub,
|
|
},
|
|
{
|
|
scanner.STAR: ast.ArithmeticOpMul,
|
|
scanner.SLASH: ast.ArithmeticOpDiv,
|
|
scanner.PERCENT: ast.ArithmeticOpMod,
|
|
},
|
|
}
|
|
}
|