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add null and boolean limit handling

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This commit is contained in:
bit-aloo
2025-08-22 20:36:47 +05:30
parent 1e5275682d
commit 7e5043edfc
1 changed files with 30 additions and 1 deletions
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31
core/translate/result_row.rs
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@@ -1,4 +1,4 @@
use turso_sqlite3_parser::ast::{Expr, Literal, Operator, UnaryOperator};
use turso_sqlite3_parser::ast::{Expr, Literal, Name, Operator, UnaryOperator};
use crate::{
error::SQLITE_CONSTRAINT,
@@ -224,6 +224,22 @@ pub fn build_limit_offset_expr(program: &mut ProgramBuilder, r: usize, expr: &Ex
});
program.emit_int(value, r);
}
Expr::Literal(Literal::Null) => {
program.emit_int(0, r);
}
Expr::Id(Name::Ident(s)) => {
let lowered = s.to_ascii_lowercase();
if lowered == "true" {
program.emit_int(1, r);
} else if lowered == "false" {
program.emit_int(0, r);
} else {
program.emit_insn(Insn::Halt {
err_code: SQLITE_CONSTRAINT,
description: format!("invalid boolean string literal: {}", s),
});
}
}
Expr::Unary(UnaryOperator::Negative, inner) => {
let inner_reg = program.alloc_register();
build_limit_offset_expr(program, inner_reg, inner);
@@ -319,6 +335,19 @@ pub fn build_limit_offset_expr(program: &mut ProgramBuilder, r: usize, expr: &Ex
pub fn try_fold_expr_to_i64(expr: &Expr) -> Option<i64> {
match expr {
Expr::Literal(Literal::Numeric(n)) => n.parse::<i64>().ok(),
Expr::Literal(Literal::Null) => {
Some(0)
}
Expr::Id(Name::Ident(s)) => {
let lowered = s.to_ascii_lowercase();
if lowered == "true" {
Some(1)
} else if lowered == "false" {
Some(0)
} else {
None
}
}
Expr::Unary(UnaryOperator::Negative, inner) => try_fold_expr_to_i64(inner).map(|v| -v),
Expr::Unary(UnaryOperator::Positive, inner) => try_fold_expr_to_i64(inner),
Expr::Binary(left, op, right) => {