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params.go
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/
params.go
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package main
import (
"fmt"
"cloud.google.com/go/spanner"
"cloud.google.com/go/spanner/apiv1/spannerpb"
"github.com/cloudspannerecosystem/memefish/ast"
"google.golang.org/protobuf/types/known/structpb"
)
func generateParams(ss map[string]string, permitType bool) (map[string]interface{}, error) {
result := make(map[string]interface{})
for name, code := range ss {
var err error
var value spanner.GenericColumnValue
var typ ast.Type
var expr ast.Expr
if typ, err = parseType(code); permitType && err == nil {
debuglog.Println(name, "ast.Type.SQL():", typ.SQL())
value, err = astTypeToGenericColumnValue(typ)
} else if permitType && code == "JSON" {
// workaround for JSON type(not literal)
value = spanner.GenericColumnValue{Type: &spannerpb.Type{Code: spannerpb.TypeCode_JSON}, Value: structpb.NewNullValue()}
// reset err
err = nil
} else if expr, err = parseExpr(code); err == nil {
debuglog.Println(name, "ast.Expr.SQL():", expr.SQL())
value, err = astExprToGenericColumnValue(expr)
} else {
return nil, fmt.Errorf("error on parsing param `%s`: %w", name, err)
}
if err != nil {
return nil, fmt.Errorf("error on processing param `%s`: %w", name, err)
}
debuglog.Println(name, "spannerpb.Type:", value.Type)
result[name] = value
}
return result, nil
}