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feat: improved error messages for atom types

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Guy C
2025-02-06 15:36:24 +00:00
parent 057d625464
commit ded35dcc6e
2 changed files with 11 additions and 10 deletions
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6
src/main/wacc/lexer.scala
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@@ -12,8 +12,6 @@ val errConfig = new ErrorConfig {
"%" -> Label("binary operator"), "%" -> Label("binary operator"),
"&&" -> Label("binary operator"), "&&" -> Label("binary operator"),
"*" -> Label("binary operator"), "*" -> Label("binary operator"),
"+" -> Label("binary operator"),
"-" -> Label("binary operator"),
"/" -> Label("binary operator"), "/" -> Label("binary operator"),
"<" -> Label("binary operator"), "<" -> Label("binary operator"),
"<=" -> Label("binary operator"), "<=" -> Label("binary operator"),
@@ -32,8 +30,8 @@ val errConfig = new ErrorConfig {
"string" -> Label("valid type"), "string" -> Label("valid type"),
"fst" -> Label("pair extraction"), "fst" -> Label("pair extraction"),
"snd" -> Label("pair extraction"), "snd" -> Label("pair extraction"),
"false" -> Label("boolean value"), "false" -> Label("boolean literal"),
"true" -> Label("boolean value") "true" -> Label("boolean literal")
) )
} }
object lexer { object lexer {

15
src/main/wacc/parser.scala
View File

@@ -29,11 +29,14 @@ object parser {
Greater from ">", Greater from ">",
GreaterEq from ">=" GreaterEq from ">="
) +: ) +:
SOps(InfixL)(Add from "+", Sub from "-") +: SOps(InfixL)(
(Add from "+").label("binary operator"),
(Sub from "-").label("binary operator")
) +:
SOps(InfixL)(Mul from "*", Div from "/", Mod from "%") +: SOps(InfixL)(Mul from "*", Div from "/", Mod from "%") +:
SOps(Prefix)( SOps(Prefix)(
Not from "!", Not from "!",
Negate from (notFollowedBy(negateCheck) ~> "-"), (Negate from (notFollowedBy(negateCheck) ~> "-")).hide,
Len from "len", Len from "len",
Ord from "ord", Ord from "ord",
Chr from "chr" Chr from "chr"
@@ -43,10 +46,10 @@ object parser {
// Atoms // Atoms
private lazy val `<atom>`: Atoms[Expr6] = Atoms( private lazy val `<atom>`: Atoms[Expr6] = Atoms(
IntLiter(integer), IntLiter(integer).label("integer literal"),
BoolLiter(("true" as true) | ("false" as false)), BoolLiter(("true" as true) | ("false" as false)).label("boolean literal"),
CharLiter(charLit), CharLiter(charLit).label("character literal"),
StrLiter(stringLit), StrLiter(stringLit).label("string literal"),
PairLiter from "null", PairLiter from "null",
`<ident-or-array-elem>`, `<ident-or-array-elem>`,
Parens("(" ~> `<expr>` <~ ")") Parens("(" ~> `<expr>` <~ ")")