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* [gcc/devel/rust/master] diagnostics: Add underline for tokens in diagnostics.
@ 2023-01-13 8:25 Thomas Schwinge
0 siblings, 0 replies; only message in thread
From: Thomas Schwinge @ 2023-01-13 8:25 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:68839a57ea5091435c28e97f3d0f3dc6da9abacf
commit 68839a57ea5091435c28e97f3d0f3dc6da9abacf
Author: mxlol233 <mxlol233@outlook.com>
Date: Wed Jan 11 20:36:13 2023 +0800
diagnostics: Add underline for tokens in diagnostics.
Currently, the diagnostics only point to the corresponding token's start position by carets, and lack of underlines for full token. This commit add support for such underlines in diagnostics by encoding range information in location_t.
Signed-off-by: Xiao Ma <mxlol233@outlook.com>
Diff:
---
gcc/rust/lex/rust-lex.cc | 57 ++++++++++++++++++++++
gcc/testsuite/rust/compile/diagnostic_underline.rs | 15 ++++++
2 files changed, 72 insertions(+)
diff --git a/gcc/rust/lex/rust-lex.cc b/gcc/rust/lex/rust-lex.cc
index ea17ecc731f..89ba6f249bb 100644
--- a/gcc/rust/lex/rust-lex.cc
+++ b/gcc/rust/lex/rust-lex.cc
@@ -447,6 +447,7 @@ Lexer::build_token ()
// match arm arrow
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (MATCH_ARROW, loc);
}
@@ -455,6 +456,7 @@ Lexer::build_token ()
// equality operator
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (EQUAL_EQUAL, loc);
}
@@ -473,6 +475,7 @@ Lexer::build_token ()
// return type specifier
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (RETURN_TYPE, loc);
}
@@ -481,6 +484,7 @@ Lexer::build_token ()
// minus-assign
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (MINUS_EQ, loc);
}
@@ -496,6 +500,7 @@ Lexer::build_token ()
// add-assign
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (PLUS_EQ, loc);
}
@@ -517,6 +522,7 @@ Lexer::build_token ()
// multiplication-assign
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (ASTERISK_EQ, loc);
}
@@ -535,6 +541,7 @@ Lexer::build_token ()
// division-assign
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (DIV_EQ, loc);
}
@@ -602,6 +609,8 @@ Lexer::build_token ()
start_line (current_line, max_column_hint);
str.shrink_to_fit ();
+
+ loc += str.size () - 1;
if (is_inner)
return Token::make_inner_doc_comment (loc, std::move (str));
else
@@ -756,6 +765,8 @@ Lexer::build_token ()
}
str.shrink_to_fit ();
+
+ loc += str.size () - 1;
if (is_inner)
return Token::make_inner_doc_comment (loc, std::move (str));
else
@@ -773,6 +784,7 @@ Lexer::build_token ()
// modulo-assign
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (PERCENT_EQ, loc);
}
@@ -788,6 +800,7 @@ Lexer::build_token ()
// xor-assign?
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (CARET_EQ, loc);
}
@@ -805,6 +818,7 @@ Lexer::build_token ()
// left-shift assign
skip_input (1);
current_column += 3;
+ loc += 2;
return Token::make (LEFT_SHIFT_EQ, loc);
}
@@ -813,6 +827,7 @@ Lexer::build_token ()
// left-shift
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (LEFT_SHIFT, loc);
}
@@ -822,6 +837,7 @@ Lexer::build_token ()
// smaller than or equal to
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (LESS_OR_EQUAL, loc);
}
@@ -840,6 +856,7 @@ Lexer::build_token ()
// right-shift-assign
skip_input (1);
current_column += 3;
+ loc += 2;
return Token::make (RIGHT_SHIFT_EQ, loc);
}
@@ -848,6 +865,7 @@ Lexer::build_token ()
// right-shift
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (RIGHT_SHIFT, loc);
}
@@ -857,6 +875,7 @@ Lexer::build_token ()
// larger than or equal to
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (GREATER_OR_EQUAL, loc);
}
@@ -872,6 +891,7 @@ Lexer::build_token ()
// scope resolution ::
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (SCOPE_RESOLUTION, loc);
}
@@ -888,6 +908,7 @@ Lexer::build_token ()
// not equal boolean operator
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (NOT_EQUAL, loc);
}
@@ -937,6 +958,7 @@ Lexer::build_token ()
// bitwise or-assign?
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (PIPE_EQ, loc);
}
@@ -945,6 +967,7 @@ Lexer::build_token ()
// logical or
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (OR, loc);
}
@@ -961,6 +984,7 @@ Lexer::build_token ()
// bitwise and-assign?
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (AMP_EQ, loc);
}
@@ -969,6 +993,7 @@ Lexer::build_token ()
// logical and
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (LOGICAL_AND, loc);
}
@@ -987,6 +1012,7 @@ Lexer::build_token ()
// ellipsis
skip_input (1);
current_column += 3;
+ loc += 2;
return Token::make (ELLIPSIS, loc);
}
@@ -995,6 +1021,7 @@ Lexer::build_token ()
// ..=
skip_input (1);
current_column += 3;
+ loc += 2;
return Token::make (DOT_DOT_EQ, loc);
}
@@ -1003,6 +1030,7 @@ Lexer::build_token ()
// ..
skip_input ();
current_column += 2;
+ loc += 1;
return Token::make (DOT_DOT, loc);
}
@@ -1717,6 +1745,8 @@ Lexer::parse_byte_char (Location loc)
current_column += length;
+ loc += length - 1;
+
return Token::make_byte_char (loc, byte_char);
}
@@ -1781,6 +1811,7 @@ Lexer::parse_byte_string (Location loc)
}
str.shrink_to_fit ();
+ loc += str.size () - 1;
return Token::make_byte_string (loc, std::move (str));
}
@@ -1861,6 +1892,8 @@ Lexer::parse_raw_byte_string (Location loc)
current_column += length;
+ loc += length - 1;
+
str.shrink_to_fit ();
return Token::make_byte_string (loc, std::move (str));
@@ -1912,6 +1945,7 @@ Lexer::parse_raw_identifier (Location loc)
else
{
str.shrink_to_fit ();
+ loc += length - 1;
return Token::make_identifier (loc, std::move (str));
}
@@ -2009,6 +2043,8 @@ Lexer::parse_string (Location loc)
}
str.shrink_to_fit ();
+ loc += length - 1;
+
return Token::make_string (loc, std::move (str));
}
@@ -2043,6 +2079,8 @@ Lexer::parse_identifier_or_keyword (Location loc)
str.shrink_to_fit ();
+ loc += length - 1;
+
TokenId keyword = classify_keyword (str);
if (keyword == IDENTIFIER)
return Token::make_identifier (loc, std::move (str));
@@ -2120,6 +2158,8 @@ Lexer::parse_raw_string (Location loc, int initial_hash_count)
current_column += length;
+ loc += length - 1;
+
str.shrink_to_fit ();
return Token::make_string (loc, std::move (str));
@@ -2183,6 +2223,9 @@ Lexer::parse_non_decimal_int_literal (Location loc, IsDigitFunc is_digit_func,
: "<insert unknown base>")));
return nullptr;
}
+
+ loc += length - 1;
+
return Token::make_int (loc, std::move (existent_str), type_hint);
}
@@ -2275,6 +2318,8 @@ Lexer::parse_decimal_int_or_float (Location loc)
current_column += length;
+ loc += length - 1;
+
str.shrink_to_fit ();
return Token::make_float (loc, std::move (str), type_hint);
}
@@ -2295,6 +2340,8 @@ Lexer::parse_decimal_int_or_float (Location loc)
current_column += length;
+ loc += length - 1;
+
str.shrink_to_fit ();
return Token::make_float (loc, std::move (str), CORETYPE_UNKNOWN);
}
@@ -2324,6 +2371,8 @@ Lexer::parse_decimal_int_or_float (Location loc)
current_column += length;
+ loc += length - 1;
+
str.shrink_to_fit ();
return Token::make_float (loc, std::move (str), type_hint);
}
@@ -2345,6 +2394,8 @@ Lexer::parse_decimal_int_or_float (Location loc)
current_column += length;
+ loc += length - 1;
+
str.shrink_to_fit ();
return Token::make_int (loc, std::move (str), type_hint);
}
@@ -2382,6 +2433,8 @@ Lexer::parse_char_or_lifetime (Location loc)
current_column += length;
+ loc += length - 1;
+
return Token::make_char (loc, current_char32);
}
else
@@ -2399,6 +2452,8 @@ Lexer::parse_char_or_lifetime (Location loc)
// TODO fix due to different widths of utf-8 chars?
current_column += 3;
+ loc += 2;
+
return Token::make_char (loc, current_char32);
}
else if (ISDIGIT (current_char32.value) || ISALPHA (current_char32.value)
@@ -2421,6 +2476,8 @@ Lexer::parse_char_or_lifetime (Location loc)
current_column += length;
+ loc += length - 1;
+
str.shrink_to_fit ();
return Token::make_lifetime (loc, std::move (str));
}
diff --git a/gcc/testsuite/rust/compile/diagnostic_underline.rs b/gcc/testsuite/rust/compile/diagnostic_underline.rs
new file mode 100644
index 00000000000..fcbf468e1c8
--- /dev/null
+++ b/gcc/testsuite/rust/compile/diagnostic_underline.rs
@@ -0,0 +1,15 @@
+// { dg-additional-options "-quiet" }
+
+/* { dg-options "-fdiagnostics-show-caret" } */
+
+
+fn barbarbar() {}
+
+const fn foo() {
+ barbarbar();// { dg-error "only functions marked as 'const' are allowed to be called from constant contexts" }
+/* { dg-begin-multiline-output "" }
+ barbarbar();//
+ ^~~~~~~~~
+{ dg-end-multiline-output "" } */
+}
+
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