schala/schala-lang/language/src/symbol_table/test.rs

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2019-10-16 19:51:43 -07:00
#![cfg(test)]
#[macro_use]
use super::*;
use crate::util::quick_ast;
macro_rules! values_in_table {
//TODO multiple values
($source:expr, $single_value:expr) => {
{
let mut symbol_table = SymbolTable::new();
let ast = quick_ast($source);
symbol_table.add_top_level_symbols(&ast).unwrap();
match symbol_table.lookup_by_fqsn($single_value) {
Some(_spec) => (),
None => panic!(),
};
}
}
}
#[test]
fn basic_symbol_table() {
values_in_table! { "let a = 10; fn b() { 20 }", &fqsn!("b"; tr) }
}
#[test]
fn no_duplicates() {
let source = r#"
fn a() { 1 }
fn b() { 2 }
fn a() { 3 }
"#;
let mut symbol_table = SymbolTable::new();
let ast = quick_ast(source);
let output = symbol_table.add_top_level_symbols(&ast).unwrap_err();
assert!(output.contains("Duplicate"))
}
#[test]
fn no_duplicates_2() {
let source = r#"
let a = 20;
let q = 39;
let a = 30;
"#;
let mut symbol_table = SymbolTable::new();
let ast = quick_ast(source);
let output = symbol_table.add_top_level_symbols(&ast).unwrap_err();
assert!(output.contains("Duplicate"))
}
#[test]
fn no_duplicates_3() {
let source = r#"
fn a() {
let a = 20
let b = 40
a + b
}
fn q() {
let x = 30
let x = 33
}
"#;
let mut symbol_table = SymbolTable::new();
let ast = quick_ast(source);
let output = symbol_table.add_top_level_symbols(&ast).unwrap_err();
assert!(output.contains("Duplicate"))
}
#[test]
fn dont_falsely_detect_duplicates() {
let source = r#"
let a = 20;
fn some_func() {
let a = 40;
77
}
let q = 39;
"#;
let mut symbol_table = SymbolTable::new();
let ast = quick_ast(source);
symbol_table.add_top_level_symbols(&ast).unwrap();
assert!(symbol_table.lookup_by_fqsn(&fqsn!["a"; tr]).is_some());
assert!(symbol_table.lookup_by_fqsn(&fqsn!["some_func"; fn, "a";tr]).is_some());
}
#[test]
fn enclosing_scopes() {
let source = r#"
fn outer_func(x) {
fn inner_func(arg) {
arg
}
x + inner_func(x)
}"#;
let mut symbol_table = SymbolTable::new();
let ast = quick_ast(source);
symbol_table.add_top_level_symbols(&ast).unwrap();
assert!(symbol_table.lookup_by_fqsn(&fqsn!("outer_func"; tr)).is_some());
assert!(symbol_table.lookup_by_fqsn(&fqsn!("outer_func"; fn, "inner_func"; tr)).is_some());
}
#[test]
fn enclosing_scopes_2() {
let source = r#"
fn outer_func(x) {
fn inner_func(arg) {
arg
}
fn second_inner_func() {
fn another_inner_func() {
}
}
inner_func(x)
}"#;
let mut symbol_table = SymbolTable::new();
let ast = quick_ast(source);
symbol_table.add_top_level_symbols(&ast).unwrap();
assert!(symbol_table.lookup_by_fqsn(&fqsn!("outer_func"; tr)).is_some());
assert!(symbol_table.lookup_by_fqsn(&fqsn!("outer_func"; fn, "inner_func"; tr)).is_some());
assert!(symbol_table.lookup_by_fqsn(&fqsn!("outer_func"; fn, "second_inner_func"; tr)).is_some());
assert!(symbol_table.lookup_by_fqsn(&fqsn!("outer_func"; fn, "second_inner_func"; fn, "another_inner_func"; tr)).is_some());
}
#[test]
fn enclosing_scopes_3() {
let source = r#"
fn outer_func(x) {
fn inner_func(arg) {
arg
}
fn second_inner_func() {
fn another_inner_func() {
}
fn another_inner_func() {
}
}
inner_func(x)
}"#;
let mut symbol_table = SymbolTable::new();
let ast = quick_ast(source);
let output = symbol_table.add_top_level_symbols(&ast).unwrap_err();
assert!(output.contains("Duplicate"))
}