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Better error recovery in comma-separated lists
Check for trailing commas in parser instead of scanner Instead of passing down a flag, add a bit to regions to say if we are in a comma-separated region. delimited instead of expectedToken
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| -- [E040] Syntax Error: tests/neg/comma-separated-errors.scala:3:21 ---------------------------------------------------- | ||
| 3 | def foo(x: Int = 5 6, y Int = 7, z: Int 5, x = 5): Unit = () // error // error // error // error | ||
| | ^ | ||
| | ')' expected, but integer literal found | ||
| -- [E040] Syntax Error: tests/neg/comma-separated-errors.scala:3:26 ---------------------------------------------------- | ||
| 3 | def foo(x: Int = 5 6, y Int = 7, z: Int 5, x = 5): Unit = () // error // error // error // error | ||
| | ^^^ | ||
| | ':' expected, but identifier found | ||
| -- [E040] Syntax Error: tests/neg/comma-separated-errors.scala:3:42 ---------------------------------------------------- | ||
| 3 | def foo(x: Int = 5 6, y Int = 7, z: Int 5, x = 5): Unit = () // error // error // error // error | ||
| | ^ | ||
| | ')' expected, but integer literal found | ||
| -- [E040] Syntax Error: tests/neg/comma-separated-errors.scala:3:47 ---------------------------------------------------- | ||
| 3 | def foo(x: Int = 5 6, y Int = 7, z: Int 5, x = 5): Unit = () // error // error // error // error | ||
| | ^ | ||
| | ':' expected, but '=' found | ||
| -- [E040] Syntax Error: tests/neg/comma-separated-errors.scala:11:16 --------------------------------------------------- | ||
| 11 | case Plus(4 1) => // error | ||
| | ^ | ||
| | ')' expected, but integer literal found | ||
| -- [E040] Syntax Error: tests/neg/comma-separated-errors.scala:12:16 --------------------------------------------------- | ||
| 12 | case Plus(4 5 6 7, 1, 2 3) => // error // error | ||
| | ^ | ||
| | ')' expected, but integer literal found | ||
| -- [E040] Syntax Error: tests/neg/comma-separated-errors.scala:12:28 --------------------------------------------------- | ||
| 12 | case Plus(4 5 6 7, 1, 2 3) => // error // error | ||
| | ^ | ||
| | ')' expected, but integer literal found | ||
| -- [E040] Syntax Error: tests/neg/comma-separated-errors.scala:14:12 --------------------------------------------------- | ||
| 14 | val x: A[T=Int, T=Int] = ??? // error // error | ||
| | ^ | ||
| | ']' expected, but '=' found | ||
| -- [E040] Syntax Error: tests/neg/comma-separated-errors.scala:14:19 --------------------------------------------------- | ||
| 14 | val x: A[T=Int, T=Int] = ??? // error // error | ||
| | ^ | ||
| | ']' expected, but '=' found |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| class A[T] | ||
| object o { | ||
| def foo(x: Int = 5 6, y Int = 7, z: Int 5, x = 5): Unit = () // error // error // error // error | ||
|
|
||
| case class Plus(a: Int, b: Int) | ||
|
|
||
| object Plus { | ||
| def unapply(r: Int): Plus = Plus(r - 1, 1) | ||
| } | ||
| 5 match { | ||
| case Plus(4 1) => // error | ||
| case Plus(4 5 6 7, 1, 2 3) => // error // error | ||
| } | ||
| val x: A[T=Int, T=Int] = ??? // error // error | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,5 @@ | ||
| class A[T] | ||
| object o { | ||
| // Testing compiler crash, this test should be modified when named type argument are completely implemented | ||
| val x: A[T=Int, T=Int] = ??? // error: ']' expected, but '=' found // error | ||
| val x: A[T=Int, T=Int] = ??? // error: ']' expected, but '=' found // error: ']' expected, but '=' found | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| -- Error: tests/neg/t11900.scala:44:16 --------------------------------------------------------------------------------- | ||
| 44 | a => a + 1, // error: weird comma | ||
| | ^ | ||
| | end of statement expected but ',' found | ||
| -- Error: tests/neg/t11900.scala:48:16 --------------------------------------------------------------------------------- | ||
| 48 | println("a"), // error: weird comma | ||
| | ^ | ||
| | end of statement expected but ',' found | ||
| -- Error: tests/neg/t11900.scala:52:16 --------------------------------------------------------------------------------- | ||
| 52 | println("b"), // error: weird comma | ||
| | ^ | ||
| | end of statement expected but ',' found | ||
| -- [E032] Syntax Error: tests/neg/t11900.scala:64:8 -------------------------------------------------------------------- | ||
| 64 | _*, // error | ||
| | ^ | ||
| | pattern expected | ||
| | | ||
| | longer explanation available when compiling with `-explain` |
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