(p *peeker)
| 253 | } |
| 254 | |
| 255 | func parseArray(p *peeker) (node, hcl.Diagnostics) { |
| 256 | var diags hcl.Diagnostics |
| 257 | |
| 258 | open := p.Read() |
| 259 | vals := []node{} |
| 260 | |
| 261 | // recover is used to shift the peeker to what seems to be the end of |
| 262 | // our array, so that when we encounter an error we leave the peeker |
| 263 | // at a reasonable point in the token stream to continue parsing. |
| 264 | recover := func(tok token) { |
| 265 | open := 1 |
| 266 | for { |
| 267 | switch tok.Type { |
| 268 | case tokenBrackO: |
| 269 | open++ |
| 270 | case tokenBrackC: |
| 271 | open-- |
| 272 | if open <= 1 { |
| 273 | return |
| 274 | } |
| 275 | case tokenEOF: |
| 276 | // Ran out of source before we were able to recover, |
| 277 | // so we'll bail here and let the caller deal with it. |
| 278 | return |
| 279 | } |
| 280 | tok = p.Read() |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | Token: |
| 285 | for { |
| 286 | if p.Peek().Type == tokenBrackC { |
| 287 | break Token |
| 288 | } |
| 289 | |
| 290 | valNode, valDiags := parseValue(p) |
| 291 | diags = diags.Extend(valDiags) |
| 292 | if valNode == nil { |
| 293 | return nil, diags |
| 294 | } |
| 295 | |
| 296 | vals = append(vals, valNode) |
| 297 | |
| 298 | switch p.Peek().Type { |
| 299 | case tokenComma: |
| 300 | comma := p.Read() |
| 301 | if p.Peek().Type == tokenBrackC { |
| 302 | // Special error message for this common mistake |
| 303 | return nil, diags.Append(&hcl.Diagnostic{ |
| 304 | Severity: hcl.DiagError, |
| 305 | Summary: "Trailing comma in array", |
| 306 | Detail: "JSON does not permit a trailing comma after the final value in an array.", |
| 307 | Subject: &comma.Range, |
| 308 | }) |
| 309 | } |
| 310 | continue Token |
| 311 | case tokenColon: |
| 312 | recover(p.Read()) |
no test coverage detected