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|
use expect_test::expect;
use crate::TopEntryPoint;
#[test]
fn source_file() {
check(
TopEntryPoint::SourceFile,
"",
expect![[r#"
SOURCE_FILE
"#]],
);
check(
TopEntryPoint::SourceFile,
"struct S;",
expect![[r#"
SOURCE_FILE
STRUCT
STRUCT_KW "struct"
WHITESPACE " "
NAME
IDENT "S"
SEMICOLON ";"
"#]],
);
check(
TopEntryPoint::SourceFile,
"@error@",
expect![[r#"
SOURCE_FILE
ERROR
AT "@"
MACRO_CALL
PATH
PATH_SEGMENT
NAME_REF
IDENT "error"
ERROR
AT "@"
error 0: expected an item
error 6: expected BANG
error 6: expected `{`, `[`, `(`
error 6: expected SEMICOLON
error 6: expected an item
"#]],
);
}
#[test]
fn macro_stmt() {
check(
TopEntryPoint::MacroStmts,
"",
expect![[r#"
MACRO_STMTS
"#]],
);
check(
TopEntryPoint::MacroStmts,
"#!/usr/bin/rust",
expect![[r##"
MACRO_STMTS
ERROR
SHEBANG "#!/usr/bin/rust"
error 0: expected expression, item or let statement
"##]],
);
check(
TopEntryPoint::MacroStmts,
"let x = 1 2 struct S;",
expect![[r#"
MACRO_STMTS
LET_STMT
LET_KW "let"
WHITESPACE " "
IDENT_PAT
NAME
IDENT "x"
WHITESPACE " "
EQ "="
WHITESPACE " "
LITERAL
INT_NUMBER "1"
WHITESPACE " "
EXPR_STMT
LITERAL
INT_NUMBER "2"
WHITESPACE " "
STRUCT
STRUCT_KW "struct"
WHITESPACE " "
NAME
IDENT "S"
SEMICOLON ";"
"#]],
);
}
#[test]
fn macro_items() {
check(
TopEntryPoint::MacroItems,
"",
expect![[r#"
MACRO_ITEMS
"#]],
);
check(
TopEntryPoint::MacroItems,
"#!/usr/bin/rust",
expect![[r##"
MACRO_ITEMS
ERROR
SHEBANG "#!/usr/bin/rust"
error 0: expected an item
"##]],
);
check(
TopEntryPoint::MacroItems,
"struct S; foo!{}",
expect![[r#"
MACRO_ITEMS
STRUCT
STRUCT_KW "struct"
WHITESPACE " "
NAME
IDENT "S"
SEMICOLON ";"
WHITESPACE " "
MACRO_CALL
PATH
PATH_SEGMENT
NAME_REF
IDENT "foo"
BANG "!"
TOKEN_TREE
L_CURLY "{"
R_CURLY "}"
"#]],
);
}
#[test]
fn macro_pattern() {
check(
TopEntryPoint::Pattern,
"",
expect![[r#"
ERROR
error 0: expected pattern
"#]],
);
check(
TopEntryPoint::Pattern,
"Some(_)",
expect![[r#"
TUPLE_STRUCT_PAT
PATH
PATH_SEGMENT
NAME_REF
IDENT "Some"
L_PAREN "("
WILDCARD_PAT
UNDERSCORE "_"
R_PAREN ")"
"#]],
);
check(
TopEntryPoint::Pattern,
"None leftover tokens",
expect![[r#"
ERROR
IDENT_PAT
NAME
IDENT "None"
WHITESPACE " "
IDENT "leftover"
WHITESPACE " "
IDENT "tokens"
"#]],
);
check(
TopEntryPoint::Pattern,
"@err",
expect![[r#"
ERROR
ERROR
AT "@"
IDENT "err"
error 0: expected pattern
"#]],
);
}
#[test]
fn type_() {
check(
TopEntryPoint::Type,
"",
expect![[r#"
ERROR
error 0: expected type
"#]],
);
check(
TopEntryPoint::Type,
"Option<!>",
expect![[r#"
PATH_TYPE
PATH
PATH_SEGMENT
NAME_REF
IDENT "Option"
GENERIC_ARG_LIST
L_ANGLE "<"
TYPE_ARG
NEVER_TYPE
BANG "!"
R_ANGLE ">"
"#]],
);
check(
TopEntryPoint::Type,
"() () ()",
expect![[r#"
ERROR
TUPLE_TYPE
L_PAREN "("
R_PAREN ")"
WHITESPACE " "
L_PAREN "("
R_PAREN ")"
WHITESPACE " "
L_PAREN "("
R_PAREN ")"
"#]],
);
check(
TopEntryPoint::Type,
"$$$",
expect![[r#"
ERROR
ERROR
DOLLAR "$"
DOLLAR "$"
DOLLAR "$"
error 0: expected type
"#]],
);
}
#[test]
fn expr() {
check(
TopEntryPoint::Expr,
"",
expect![[r#"
ERROR
error 0: expected expression
"#]],
);
check(
TopEntryPoint::Expr,
"2 + 2 == 5",
expect![[r#"
BIN_EXPR
BIN_EXPR
LITERAL
INT_NUMBER "2"
WHITESPACE " "
PLUS "+"
WHITESPACE " "
LITERAL
INT_NUMBER "2"
WHITESPACE " "
EQ2 "=="
WHITESPACE " "
LITERAL
INT_NUMBER "5"
"#]],
);
check(
TopEntryPoint::Expr,
"let _ = 0;",
expect![[r#"
ERROR
LET_EXPR
LET_KW "let"
WHITESPACE " "
WILDCARD_PAT
UNDERSCORE "_"
WHITESPACE " "
EQ "="
WHITESPACE " "
LITERAL
INT_NUMBER "0"
SEMICOLON ";"
"#]],
);
}
#[track_caller]
fn check(entry: TopEntryPoint, input: &str, expect: expect_test::Expect) {
let (parsed, _errors) = super::parse(entry, input);
expect.assert_eq(&parsed)
}
|
