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Passing SQLite comments to the generated struct #3766

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Passing SQLite comments to the generated struct #3766

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ec94235
Passing SQLite comments to the generated struct
oxisto Dec 27, 2024
847fd6c
Take only comment inside CREATE query
oxisto Dec 27, 2024
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28 changes: 28 additions & 0 deletions internal/engine/sqlite/convert.go
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Original file line number Diff line number Diff line change
Expand Up @@ -107,26 +107,54 @@ func (c *cc) convertAttach_stmtContext(n *parser.Attach_stmtContext) ast.Node {
}

func (c *cc) convertCreate_table_stmtContext(n *parser.Create_table_stmtContext) ast.Node {
tokenStream := n.GetParser().GetTokenStream().(*antlr.CommonTokenStream)

stmt := &ast.CreateTableStmt{
Name: parseTableName(n),
IfNotExists: n.EXISTS_() != nil,
Comment: comment(tokenStream, n.OPEN_PAR().GetSymbol()),
}

for _, idef := range n.AllColumn_def() {
if def, ok := idef.(*parser.Column_defContext); ok {
typeName := "any"
if def.Type_name() != nil {
typeName = def.Type_name().GetText()
}

stmt.Cols = append(stmt.Cols, &ast.ColumnDef{
Colname: identifier(def.Column_name().GetText()),
IsNotNull: hasNotNullConstraint(def.AllColumn_constraint()),
TypeName: &ast.TypeName{Name: typeName},
Comment: comment(tokenStream, def.GetStop()),
})

}
}
return stmt
}

// comment returns the comment associated with the given context.
func comment(tokenStream *antlr.CommonTokenStream, from antlr.Token) string {
var (
hiddenTokens []antlr.Token
comment string
)

hiddenTokens = tokenStream.GetHiddenTokensToRight(from.GetTokenIndex()+1, antlr.TokenHiddenChannel)

for _, token := range hiddenTokens {
// Filter for single-line comments
if token.GetTokenType() == parser.SQLiteLexerSINGLE_LINE_COMMENT {
// Remove "--" and leading/trailing whitespaces
comment = strings.TrimSpace(strings.TrimPrefix(token.GetText(), "--"))
return comment
}
}

return ""
}

func (c *cc) convertCreate_virtual_table_stmtContext(n *parser.Create_virtual_table_stmtContext) ast.Node {
switch moduleName := n.Module_name().GetText(); moduleName {
case "fts5":
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