hcl/cmd/hclspecsuite/diagnostics.go
Martin Atkins 6c4344623b Unfold the "hcl" directory up into the root
The main HCL package is more visible this way, and so it's easier than
having to pick it out from dozens of other package directories.
2019-09-09 16:08:19 -07:00

109 lines
2.5 KiB
Go

package main
import (
"encoding/json"
"fmt"
"github.com/hashicorp/hcl/v2"
)
func decodeJSONDiagnostics(src []byte) hcl.Diagnostics {
type PosJSON struct {
Line int `json:"line"`
Column int `json:"column"`
Byte int `json:"byte"`
}
type RangeJSON struct {
Filename string `json:"filename"`
Start PosJSON `json:"start"`
End PosJSON `json:"end"`
}
type DiagnosticJSON struct {
Severity string `json:"severity"`
Summary string `json:"summary"`
Detail string `json:"detail,omitempty"`
Subject *RangeJSON `json:"subject,omitempty"`
}
type DiagnosticsJSON struct {
Diagnostics []DiagnosticJSON `json:"diagnostics"`
}
var raw DiagnosticsJSON
var diags hcl.Diagnostics
err := json.Unmarshal(src, &raw)
if err != nil {
diags = append(diags, &hcl.Diagnostic{
Severity: hcl.DiagError,
Summary: "Failed to parse hcldec diagnostics result",
Detail: fmt.Sprintf("Sub-program hcldec produced invalid diagnostics: %s.", err),
})
return diags
}
if len(raw.Diagnostics) == 0 {
return nil
}
diags = make(hcl.Diagnostics, 0, len(raw.Diagnostics))
for _, rawDiag := range raw.Diagnostics {
var severity hcl.DiagnosticSeverity
switch rawDiag.Severity {
case "error":
severity = hcl.DiagError
case "warning":
severity = hcl.DiagWarning
default:
diags = append(diags, &hcl.Diagnostic{
Severity: hcl.DiagError,
Summary: "Failed to parse hcldec diagnostics result",
Detail: fmt.Sprintf("Diagnostic has unsupported severity %q.", rawDiag.Severity),
})
continue
}
diag := &hcl.Diagnostic{
Severity: severity,
Summary: rawDiag.Summary,
Detail: rawDiag.Detail,
}
if rawDiag.Subject != nil {
rawRange := rawDiag.Subject
diag.Subject = &hcl.Range{
Filename: rawRange.Filename,
Start: hcl.Pos{
Line: rawRange.Start.Line,
Column: rawRange.Start.Column,
Byte: rawRange.Start.Byte,
},
End: hcl.Pos{
Line: rawRange.End.Line,
Column: rawRange.End.Column,
Byte: rawRange.End.Byte,
},
}
}
diags = append(diags, diag)
}
return diags
}
func severityString(severity hcl.DiagnosticSeverity) string {
switch severity {
case hcl.DiagError:
return "error"
case hcl.DiagWarning:
return "warning"
default:
return "unsupported-severity"
}
}
func rangeString(rng hcl.Range) string {
return fmt.Sprintf(
"from line %d column %d byte %d to line %d column %d byte %d",
rng.Start.Line, rng.Start.Column, rng.Start.Byte,
rng.End.Line, rng.End.Column, rng.End.Byte,
)
}