mirrors/bun.sh
1
0
Fork 0
mirror of https://github.com/oven-sh/bun synced 2026-02-09 18:38:55 +00:00
Code Issues Packages Projects Releases Wiki Activity

switch

Browse Source
This commit is contained in:
Jarred Sumner
2021-04-23 14:01:31 -07:00
parent 36fd4be150
commit 2a8d124287
1 changed files with 48 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
src/js_parser.zig
View File

@@ -1698,7 +1698,54 @@ const P = struct {
p.lexer.expect(.t_close_paren);
},
.t_switch => {
notimpl();
p.lexer.next();
p.lexer.expect(.t_open_paren);
const test_ = p.parseExpr(.lowest);
p.lexer.expect(.t_close_paren);
const body_loc = p.lexer.loc();
_ = try p.pushScopeForParsePass(.block, body_loc);
defer p.popScope();
p.lexer.expect(.t_open_brace);
var cases = List(js_ast.Case).init(p.allocator);
var foundDefault = false;
var stmtOpts = ParseStatementOptions{ .lexical_decl = .allow_all };
var value: ?js_ast.Expr = null;
while (p.lexer.token != .t_close_brace) {
var body = List(js_ast.Stmt).init(p.allocator);
value = null;
if (p.lexer.token == .t_default) {
if (foundDefault) {
try p.log.addRangeError(p.source, p.lexer.range(), "Multiple default clauses are not allowed");
fail();
}
foundDefault = true;
p.lexer.next();
p.lexer.expect(.t_colon);
} else {
p.lexer.expect(.t_case);
value = p.parseExpr(.lowest);
p.lexer.expect(.t_colon);
}
caseBody: while (true) {
switch (p.lexer.token) {
.t_close_brace, .t_case, .t_default => {
break :caseBody;
},
else => {
stmtOpts = ParseStatementOptions{ .lexical_decl = .allow_all };
try body.append(p.parseStmt(&stmtOpts) catch unreachable);
},
}
}
try cases.append(js_ast.Case{ .value = value, .body = body.toOwnedSlice(), .loc = logger.Loc.Empty });
}
p.lexer.expect(.t_close_brace);
return p.s(S.Switch{ .test_ = test_, .body_loc = body_loc, .cases = cases.toOwnedSlice() }, loc);
},
.t_try => {
notimpl();