spacetimedb_sql_parser/parser/
errors.rs

1use std::fmt::Display;
2
3use sqlparser::{
4    ast::{
5        BinaryOperator, Expr, Function, ObjectName, Query, Select, SelectItem, SetExpr, TableFactor, TableWithJoins,
6        Value,
7    },
8    parser::ParserError,
9};
10use thiserror::Error;
11
12#[derive(Error, Debug)]
13pub enum SubscriptionUnsupported {
14    #[error("Unsupported SELECT: {0}")]
15    Select(Select),
16    #[error("Unsupported: {0}")]
17    Feature(String),
18    #[error("Unsupported: Non-SELECT queries")]
19    Dml,
20}
21
22impl SubscriptionUnsupported {
23    pub(crate) fn feature(expr: impl Display) -> Self {
24        Self::Feature(format!("{expr}"))
25    }
26}
27
28#[derive(Error, Debug)]
29pub enum SqlUnsupported {
30    #[error("Unsupported literal expression: {0}")]
31    Literal(Value),
32    #[error("Unsupported LIMIT expression: {0}")]
33    Limit(Expr),
34    #[error("Unsupported expression: {0}")]
35    Expr(Expr),
36    #[error("Unsupported binary operator: {0}")]
37    BinOp(BinaryOperator),
38    #[error("Unsupported projection: {0}")]
39    Projection(SelectItem),
40    #[error("Unsupported projection expression: {0}")]
41    ProjectionExpr(Expr),
42    #[error("Unsupported aggregate function: {0}")]
43    Aggregate(Function),
44    #[error("Aggregate expressions must have column aliases")]
45    AggregateWithoutAlias,
46    #[error("Unsupported FROM expression: {0}")]
47    From(TableFactor),
48    #[error("Unsupported set operation: {0}")]
49    SetOp(SetExpr),
50    #[error("Unsupported INSERT expression: {0}")]
51    Insert(Query),
52    #[error("Unsupported INSERT value: {0}")]
53    InsertValue(Expr),
54    #[error("Unsupported table expression in DELETE: {0}")]
55    DeleteTable(TableWithJoins),
56    #[error("Unsupported column/variable assignment expression: {0}")]
57    Assignment(Expr),
58    #[error("Multi-part names are not supported: {0}")]
59    MultiPartName(ObjectName),
60    #[error("Unsupported: {0}")]
61    Feature(String),
62    #[error("Non-inner joins are not supported")]
63    JoinType,
64    #[error("Implicit joins are not supported")]
65    ImplicitJoins,
66    #[error("Mixed wildcard projections are not supported")]
67    MixedWildcardProject,
68    #[error("Multiple SQL statements are not supported")]
69    MultiStatement,
70    #[error("Multi-table DELETE is not supported")]
71    MultiTableDelete,
72    #[error("Empty SQL query")]
73    Empty,
74    #[error("Names must be qualified when using joins")]
75    UnqualifiedNames,
76}
77
78impl SqlUnsupported {
79    pub(crate) fn feature(expr: impl Display) -> Self {
80        Self::Feature(format!("{expr}"))
81    }
82}
83
84#[derive(Error, Debug)]
85pub enum SqlRequired {
86    #[error("A FROM clause is required")]
87    From,
88    #[error("Aliases are required for JOIN")]
89    JoinAlias,
90}
91
92#[derive(Error, Debug)]
93pub enum SqlParseError {
94    #[error(transparent)]
95    SqlUnsupported(#[from] SqlUnsupported),
96    #[error(transparent)]
97    SubscriptionUnsupported(#[from] SubscriptionUnsupported),
98    #[error(transparent)]
99    SqlRequired(#[from] SqlRequired),
100    #[error(transparent)]
101    ParserError(#[from] ParserError),
102}
spacetimedb_sql_parser/parser/errors.rs

spacetimedb_sql_parser/parser/
errors.rs
