From 6aa9838ea6c4c4a355796ef6dcc4dd28f2035c38 Mon Sep 17 00:00:00 2001
From: Dmitry Sharshakov <d3dx12.xx@gmail.com>
Date: Sun, 24 Oct 2021 17:24:18 +0300
Subject: [PATCH] dap: support arrays as arguments

---
 helix-core/src/syntax.rs       |  9 ++++++++-
 helix-term/src/commands/dap.rs | 28 ++++++++++++++++++++++------
 2 files changed, 30 insertions(+), 7 deletions(-)

diff --git a/helix-core/src/syntax.rs b/helix-core/src/syntax.rs
index 822d31814..441802a58 100644
--- a/helix-core/src/syntax.rs
+++ b/helix-core/src/syntax.rs
@@ -104,13 +104,20 @@ pub enum DebugConfigCompletion {
     Advanced(AdvancedCompletion),
 }
 
+#[derive(Debug, PartialEq, Clone, Deserialize, Serialize)]
+#[serde(untagged)]
+pub enum DebugArgumentValue {
+    String(String),
+    Array(Vec<String>),
+}
+
 #[derive(Debug, PartialEq, Clone, Deserialize, Serialize)]
 #[serde(rename_all = "kebab-case")]
 pub struct DebugTemplate {
     pub name: String,
     pub request: String,
     pub completion: Vec<DebugConfigCompletion>,
-    pub args: HashMap<String, String>,
+    pub args: HashMap<String, DebugArgumentValue>,
 }
 
 #[derive(Debug, PartialEq, Clone, Deserialize, Serialize)]
diff --git a/helix-term/src/commands/dap.rs b/helix-term/src/commands/dap.rs
index 6df9be226..566730e1a 100644
--- a/helix-term/src/commands/dap.rs
+++ b/helix-term/src/commands/dap.rs
@@ -5,7 +5,10 @@ use crate::{
     job::Callback,
     ui::{FilePicker, Prompt, PromptEvent},
 };
-use helix_core::{syntax::DebugConfigCompletion, Selection};
+use helix_core::{
+    syntax::{DebugArgumentValue, DebugConfigCompletion},
+    Selection,
+};
 use helix_dap::{self as dap, Client, ThreadId};
 use helix_lsp::block_on;
 
@@ -239,13 +242,26 @@ pub fn dap_start_impl(
                     }
                 }
                 // For param #0 replace {0} in args
-                value = value.replace(format!("{{{}}}", i).as_str(), &param);
+                value = match value {
+                    DebugArgumentValue::String(v) => {
+                        DebugArgumentValue::String(v.replace(format!("{{{}}}", i).as_str(), &param))
+                    }
+                    DebugArgumentValue::Array(arr) => DebugArgumentValue::Array(
+                        arr.iter()
+                            .map(|v| v.replace(format!("{{{}}}", i).as_str(), &param))
+                            .collect(),
+                    ),
+                };
             }
 
-            if let Ok(integer) = value.parse::<usize>() {
-                args.insert(k, Value::Number(serde_json::Number::from(integer)));
-            } else {
-                args.insert(k, Value::String(value));
+            if let DebugArgumentValue::String(string) = value {
+                if let Ok(integer) = string.parse::<usize>() {
+                    args.insert(k, to_value(integer).unwrap());
+                } else {
+                    args.insert(k, to_value(string).unwrap());
+                }
+            } else if let DebugArgumentValue::Array(arr) = value {
+                args.insert(k, to_value(arr).unwrap());
             }
         }
     }