fix: empty default empty string parameter in global components

abdyek · abdyek · commit 9b1abc7f4e7e · 2026-01-28T17:36:07.000+03:00
diff --git a/renderer/html/param_ref.go b/renderer/html/param_ref.go
@@ -168,5 +168,9 @@ func (p *paramRefInGlobalCompDef) Render() string {
 		return ast.IsRuleNameOneOf(node, []string{"comp-string-param", "comp-call-param", "comp-bool-param"})
 	}).Children(), "comp-param-defa-value")
 
+	if compParamDefaValue == nil {
+		return ""
+	}
+
 	return html.EscapeString(strings.TrimSpace(string(compParamDefaValue.Raw())))
 }
diff --git a/testdata/global_input/EMPTY_STRING_PARAM.comp b/testdata/global_input/EMPTY_STRING_PARAM.comp
@@ -1,2 +1,2 @@
 str = ""
-*It must not panic* {{ str }}
+**It must not panic** {{ str }}
diff --git a/testdata/global_output/EMPTY_STRING_PARAM.golden b/testdata/global_output/EMPTY_STRING_PARAM.golden
@@ -1 +1 @@
-<p><strong>It must not panic</strong></p>
+<p><strong>It must not panic</strong> </p>

Original file line number	Diff line number	Diff line change
`@@ -168,5 +168,9 @@ func (p *paramRefInGlobalCompDef) Render() string {`
`168`	`168`	`return ast.IsRuleNameOneOf(node, []string{"comp-string-param", "comp-call-param", "comp-bool-param"})`
`169`	`169`	`}).Children(), "comp-param-defa-value")`
`170`	`170`
	`171`	`+ if compParamDefaValue == nil {`
	`172`	`+ return ""`
	`173`	`+ }`
	`174`	`+`
`171`	`175`	`return html.EscapeString(strings.TrimSpace(string(compParamDefaValue.Raw())))`
`172`	`176`	`}`
Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-<p><strong>It must not panic</strong></p>`
	`1`	`+<p><strong>It must not panic</strong> </p>`