Method NewBindMacro

cel/optimizer.go:322–352

NewBindMacro creates an AST expression representing the expanded bind() macro, and a macro expression representing the unexpanded call signature to be inserted into the source info macro call metadata.

(macroID int64, varName string, varInit, remaining ast.Expr)

// NewBindMacro creates an AST expression representing the expanded bind() macro, and a macro expression
// representing the unexpanded call signature to be inserted into the source info macro call metadata.
func (opt *optimizerExprFactory) NewBindMacro(macroID int64, varName string, varInit, remaining ast.Expr) (astExpr, macroExpr ast.Expr) {
	varID := opt.nextID()
	remainingID := opt.nextID()
	remaining = opt.fac.CopyExpr(remaining)
	remaining.RenumberIDs(func(id int64) int64 {
		if id == macroID {
			return remainingID
		}
		return id
	})
	if call, exists := opt.sourceInfo.GetMacroCall(macroID); exists {
		opt.SetMacroCall(remainingID, opt.fac.CopyExpr(call))
	}

	astExpr = opt.fac.NewComprehension(macroID,
		opt.fac.NewList(opt.nextID(), []ast.Expr{}, []int32{}),
		"#unused",
		varName,
		opt.fac.CopyExpr(varInit),
		opt.fac.NewLiteral(opt.nextID(), types.False),
		opt.fac.NewIdent(varID, varName),
		remaining)

	macroExpr = opt.fac.NewMemberCall(0, "bind",
		opt.fac.NewIdent(opt.nextID(), "cel"),
		opt.fac.NewIdent(varID, varName),
		opt.fac.CopyExpr(varInit),
		opt.fac.CopyExpr(remaining))
	opt.sanitizeMacro(macroID, macroExpr)
	return
}

// NewCall creates a global function call invocation expression.
//