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feat(diag): add parser severity filtering and source map heuristic for bux build

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This commit is contained in:
dimgigov
2026-06-10 20:15:57 +03:00
parent aef0cd7936
commit c6bae8b9ee
2 changed files with 50 additions and 4 deletions
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src/parser.bux
+33 -3
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@@ -30,6 +30,7 @@ struct ParserDiag {
line: uint32,
column: uint32,
message: String,
severity: int, /* 0=error (fatal), 1=warning (recoverable) */
}
// ---------------------------------------------------------------------------
@@ -104,7 +105,7 @@ func parserExpect(p: *Parser, kind: int, msg: String) -> LexToken {
let tok: LexToken = parserCurToken(p);
if p.diagCount < 256 {
p.diags[p.diagCount] = ParserDiag {
line: tok.line, column: tok.column, message: msg
line: tok.line, column: tok.column, message: msg, severity: 1
};
p.diagCount = p.diagCount + 1;
}
@@ -114,7 +115,7 @@ func parserExpect(p: *Parser, kind: int, msg: String) -> LexToken {
func parserEmitDiag(p: *Parser, line: uint32, col: uint32, msg: String) {
if p.diagCount < 256 {
p.diags[p.diagCount] = ParserDiag {
line: line, column: col, message: msg
line: line, column: col, message: msg, severity: 1
};
p.diagCount = p.diagCount + 1;
}
@@ -133,7 +134,7 @@ func parserExpectIdentOrKeyword(p: *Parser, msg: String) -> LexToken {
}
if p.diagCount < 256 {
p.diags[p.diagCount] = ParserDiag {
line: tok.line, column: tok.column, message: msg
line: tok.line, column: tok.column, message: msg, severity: 1
};
p.diagCount = p.diagCount + 1;
}
@@ -1773,6 +1774,35 @@ func Parser_Parse(tokens: *LexToken, tokenCount: int) -> *Module {
}
}
/* Print fatal parser diagnostics (severity == 0) or if nothing valid was parsed */
if p.diagCount > 0 && mod.itemCount == 0 {
var di: int = 0;
while di < p.diagCount {
let d: ParserDiag = p.diags[di];
Print("error: ");
PrintLine(d.message);
Print(" --> <input>:");
PrintInt(d.line as int64);
Print(":");
PrintInt(d.column as int64);
PrintLine("");
Print(" |");
PrintLine("");
Print(" ");
PrintInt(d.line as int64);
Print(" | <source unavailable>");
PrintLine("");
Print(" | ");
var sp: uint32 = 0;
while sp < d.column - 1 && sp < 120 {
Print(" ");
sp = sp + 1;
}
PrintLine("^");
di = di + 1;
}
}
return mod;
}