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refactor: improvements to semantic error printing format

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Co-authored by: al4423
This commit is contained in:
Guy C 2025-02-06 20:46:45 +00:00
parent 2ac7744e68
commit a2c81883f4
1 changed files with 23 additions and 6 deletions
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29
src/main/wacc/Error.scala
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@ -20,12 +20,12 @@ def printError(error: Error)(using errorContent: String): Unit = {
println( println(
s"Duplicate declaration of identifier ${ident.v} at line: ${ident.getPosition.line} column: ${ident.getPosition.column}" s"Duplicate declaration of identifier ${ident.v} at line: ${ident.getPosition.line} column: ${ident.getPosition.column}"
) )
highlight(ident.getPosition.line, ident.getPosition.column, ident.v.length) highlight(ident)
case Error.UndefinedIdentifier(ident, identType) => case Error.UndefinedIdentifier(ident, identType) =>
println( println(
s"Undefined ${identType.toString.toLowerCase} ${ident.v} at line: ${ident.getPosition.line} column: ${ident.getPosition.column}" s"Undefined ${identType.toString.toLowerCase()} ${ident.v} at line: ${ident.getPosition.line} column: ${ident.getPosition.column}"
) )
highlight(ident.getPosition.line, ident.getPosition.column, ident.v.length) highlight(ident)
case Error.FunctionParamsMismatch(ident, expected, got) => case Error.FunctionParamsMismatch(ident, expected, got) =>
println(s"Function ${ident.v} expects $expected parameters, got $got") println(s"Function ${ident.v} expects $expected parameters, got $got")
case Error.TypeMismatch(expected, got) => case Error.TypeMismatch(expected, got) =>
@ -34,8 +34,25 @@ def printError(error: Error)(using errorContent: String): Unit = {
} }
def highlight(line: Int, column: Int, size: Int)(using errorContent: String): Unit = { def highlight(ident: ast.Ident)(using errorContent: String): Unit = {
val lines = errorContent.split("\n") val lines = errorContent.split("\n")
val linePointer = " " * (column) + ("^" * (size)) + "\n"
println(s">${lines(line - 2)}\n>${lines(line - 1)}\n$linePointer>${lines(line)}") val preLine = if (ident.getPosition.line > 1) lines(ident.getPosition.line - 2) else ""
val midLine = lines(ident.getPosition.line - 1)
val postLine = lines(ident.getPosition.line)
val linePointer = " " * (ident.getPosition.column) + ("^" * (ident.v.length)) + "\n"
println(
s">$preLine\n>$midLine\n$linePointer>$postLine"
)
// var lines: Iterator[String] = errorContent.linesIterator
// lines = lines.drop(Math.max(0, ident.getPosition.line - 2))
// println(s">${lines.next()}")
// if (lines.hasNext)
// println(s">${lines.next()}")
// println(" " * (ident.getPosition.column) + ("^" * (ident.v.length)))
// if(lines.hasNext)
// println(s">${lines.next()}")
} }