Macro delimiter

crates/codegen/src/expr.rs

@@ -172,10 +172,15 @@ impl GenRust for Postfix {
                 cg.add(")");
             }
 
-            Postfix::MacroCall(inner) => {
-                cg.add("!(");
+            Postfix::MacroCall { inner, delimiter } => {
+                let (open, close) = match delimiter {
+                    MacroDelimiter::Paren => ("!(", ")"),
+                    MacroDelimiter::Bracket => ("![", "]"),
+                    MacroDelimiter::Brace => ("!{", "}"),
+                };
+                cg.add(open);
                 cg.add(inner);
-                cg.add(")");
+                cg.add(close);
             }
 
             Postfix::StructCall(fields) => {

crates/parser/src/ast/expr.rs

@@ -39,11 +39,21 @@ pub enum Pattern {
     Path(bool, Path),
 }
 
+#[derive(Debug, Clone, Serialize)]
+pub enum MacroDelimiter {
+    Paren,
+    Bracket,
+    Brace,
+}
+
 #[derive(Debug, Clone, Serialize)]
 pub enum Postfix {
     FieldAccess(Identifier, Option<Generics>),
     Call(Vec<Expression>),
-    MacroCall(String),
+    MacroCall {
+        inner: String,
+        delimiter: MacroDelimiter,
+    },
     StructCall(Vec<(Identifier, Expression)>),
     Assign(String, Box<Expression>),
     Index(Expression),

crates/parser/src/grammar.pest

@@ -475,7 +475,9 @@ array = {
 macro_inner_v = @{
     string_lit
   | ("(" ~ macro_inner_v* ~ ")")
-  | (!("(" | ")") ~ ANY)
+  | ("[" ~ macro_inner_v* ~ "]")
+  | ("{" ~ macro_inner_v* ~ "}")
+  | (!("(" | ")" | "[" | "]" | "{" | "}") ~ ANY)
 }
 
 // ------------------------------------------------------
@@ -511,9 +513,9 @@ call_px = {
     "(" ~ (expr ~ ("," ~ expr)*)? ~ ")"
 }
 
-macro_call_px = {
-    "!" ~ "(" ~ macro_inner_v* ~ ")"
-}
+macro_call_paren   = { "!" ~ "(" ~ macro_inner_v* ~ ")" }
+macro_call_bracket = { "!" ~ "[" ~ macro_inner_v* ~ "]" }
+macro_call_brace   = { "!" ~ "{" ~ macro_inner_v* ~ "}" }
 
 struct_field_decl = {
     identifier ~ ":" ~ expr
@@ -546,7 +548,9 @@ decrement = {
 postfix = {
     field_px
   | call_px
-  | macro_call_px
+  | macro_call_paren
+  | macro_call_bracket
+  | macro_call_brace
   | struct_px
   | index_px
   | as_px

crates/parser/src/parser/common/expr.rs

@@ -155,7 +155,18 @@ impl<'a> TryFrom<pest::iterators::Pair<'a, Rule>> for Postfix {
                 ast_expr!(Postfix::Index(Expression::try_from(inner.next().unwrap())))
             }
 
-            Rule::macro_call_px => Ok(Postfix::MacroCall(inner.as_str().to_string())),
+            Rule::macro_call_paren => Ok(Postfix::MacroCall {
+                inner: inner.as_str().to_string(),
+                delimiter: MacroDelimiter::Paren,
+            }),
+            Rule::macro_call_bracket => Ok(Postfix::MacroCall {
+                inner: inner.as_str().to_string(),
+                delimiter: MacroDelimiter::Bracket,
+            }),
+            Rule::macro_call_brace => Ok(Postfix::MacroCall {
+                inner: inner.as_str().to_string(),
+                delimiter: MacroDelimiter::Brace,
+            }),
 
             Rule::as_px => {
                 ast_expr!(Postfix::As(inner.next().unwrap().try_into()))