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Throw Exception for wrong argtype in join method #2364

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Merged
merged 12 commits into from
Oct 6, 2023
Merged

Throw Exception for wrong argtype in join method #2364

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a1f20e1
Throw Exception for wrong argtype in join method
Agent-Hellboy Oct 6, 2023
8cdf7cd
Remove SemanticError from test_str_01.py
Agent-Hellboy Oct 6, 2023
aba1128
Add reference for test handling join method
Agent-Hellboy Oct 6, 2023
74e08e5
Remove .stdout file
Agent-Hellboy Oct 6, 2023
4a4e40c
Run reference test
Agent-Hellboy Oct 6, 2023
5a22c59
Remove unnecessary files
Agent-Hellboy Oct 6, 2023
931f19d
Include update references
Agent-Hellboy Oct 6, 2023
2872a65
Update tests/errors/string_01.py
Agent-Hellboy Oct 6, 2023
da38f2f
Update test reference
Agent-Hellboy Oct 6, 2023
863faba
Remove .stdout file
Agent-Hellboy Oct 6, 2023
9cbc862
Add test for corner cases
Agent-Hellboy Oct 6, 2023
dcb18bd
Remove unused import
Agent-Hellboy Oct 6, 2023
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16 changes: 16 additions & 0 deletions integration_tests/test_str_01.py
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,19 @@ def test_str_join2():
res:str = a.join(p)
assert res == "a**b"

def test_str_join_empty_str():
a: str
a = ""
p:list[str] = ["a","b"]
res:str = a.join(p)
assert res == "ab"

def test_str_join_empty_list():
a: str
a = "ab"
p:list[str] = []
res:str = a.join(p)
assert res == ""

def test_constant_str_subscript():
assert "abc"[2] == "c"
Expand All @@ -71,6 +84,9 @@ def check():
test_str_slice()
test_str_repeat()
test_str_join()
test_str_join2()
test_str_join_empty_str()
test_str_join_empty_list()
test_constant_str_subscript()

check()
15 changes: 10 additions & 5 deletions src/lpython/semantics/python_ast_to_asr.cpp
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Expand Up @@ -34,7 +34,6 @@
#include <lpython/parser/parser.h>
#include <libasr/serialization.h>


namespace LCompilers::LPython {

namespace CastingUtil {
Expand Down Expand Up @@ -6669,15 +6668,21 @@ class BodyVisitor : public CommonVisitor<BodyVisitor> {
throw SemanticError("str.join() takes one argument",
loc);
}
ASR::expr_t *arg_sub = args[0].m_value;
ASR::ttype_t *arg_sub_type = ASRUtils::expr_type(arg_sub);
if(!ASR::is_a<ASR::List_t>(*arg_sub_type)){
throw SemanticError("str.join() takes type list only",
loc);
}
Comment on lines +6671 to +6676
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This change seems good. You can add an error reference test for this. Here is an example of how to add an error reference test 7c2bbac. You just add a test file in tests/errors. In the test file, you pass a type apart from list to str.join(). You enable this test by adding it to tests/tests.toml. Then you just need to update the reference tests using ./run_tests.py -u. This will add a new reference .stderr and .json files.

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Actually, I am still not checking the type of element inside the list which should be str, I checked grammar for asr but didn't get anything on how to iterate over list expression as it must be a list of str expressions. ast is getting generated perfectly but, I don't know how can I map ast nodes to asr nodes.

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I did exact same thing you suggested, but CI is still failing , I must have missed something.

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Try updating refs using ./run_tests.py -u and stage all and commit the updated refs.

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@Thirumalai-Shaktivel Thirumalai-Shaktivel Oct 6, 2023 •
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After implementing and committing the required changes, you can do the following to test everything on your machine:

$ ./build0.sh
$ ./build1.sh
$ ./run_tests.py # if this fails, check for the failure and do ./run_tests.py -u to update refs.
$ cd integration_tests && ./run_tests.py # Here you can do `./run_tests.py -b c` to test c backend, use `-h` option to view all the available options

If everything works, then you are good to go.

fn_call_name = "_lpython_str_join";
ASR::call_arg_t str_var;
str_var.loc = loc;
str_var.m_value = s_var;
ASR::call_arg_t passed_int;
passed_int.loc = loc;
passed_int.m_value = args[0].m_value;
ASR::call_arg_t list_of_str;
list_of_str.loc = loc;
list_of_str.m_value = args[0].m_value;
fn_args.push_back(al, str_var);
fn_args.push_back(al, passed_int);
fn_args.push_back(al, list_of_str);
} else if (attr_name == "find") {
if (args.size() != 1) {
throw SemanticError("str.find() takes one argument",
Expand Down
9 changes: 9 additions & 0 deletions tests/errors/string_02.py
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@@ -0,0 +1,9 @@
from lpython import i32

def test_wrong_argument_in_join():
x: str = "ab"
p: i32 = 1
res:str = x.join(p)
print(res)

test_wrong_argument_in_join()
13 changes: 13 additions & 0 deletions tests/reference/asr-string_02-499c9ff.json
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@@ -0,0 +1,13 @@
{
"basename": "asr-string_02-499c9ff",
"cmd": "lpython --show-asr --no-color {infile} -o {outfile}",
"infile": "tests/errors/string_02.py",
"infile_hash": "ed6511565e893791a4bd8ea0b4750817bab13cd6dc0731332127bf58",
"outfile": null,
"outfile_hash": null,
"stdout": null,
"stdout_hash": null,
"stderr": "asr-string_02-499c9ff.stderr",
"stderr_hash": "368ba74a1e0d6609f71e6f87f95bd0b6151420c81336e48a172cb613",
"returncode": 2
}
5 changes: 5 additions & 0 deletions tests/reference/asr-string_02-499c9ff.stderr
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@@ -0,0 +1,5 @@
semantic error: str.join() takes type list only
--> tests/errors/string_02.py:6:15
|
6 | res:str = x.join(p)
| ^^^^^^^^^
4 changes: 4 additions & 0 deletions tests/tests.toml
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Expand Up @@ -650,6 +650,10 @@ asr = true
filename = "errors/string_01.py"
asr = true

[[test]]
filename = "errors/string_02.py"
asr = true

[[test]]
filename = "errors/structs_01.py"
asr = true
Expand Down