plum

#treesitter#compiler#wasm

git clone https://git.pyrossh.dev/plum

A statically typed, imperative programming language inspired by rust, python

391c8e4 — Peter John 2026-07-23T18:41:41+05:30 
feat(tree-sitter-plum): add field_target rule for obj.field = value assignment
Files changed (5) hide show
  1. tooling/tree-sitter-plum/grammar.js +8 -1
  2. tooling/tree-sitter-plum/src/grammar.json +0 -0
  3. tooling/tree-sitter-plum/src/node-types.json +0 -0
  4. tooling/tree-sitter-plum/src/parser.c +0 -0
  5. tooling/tree-sitter-plum/test/corpus/assign.txt +47 -0
tooling/tree-sitter-plum/grammar.js CHANGED
@@ -199,9 +199,16 @@ module.exports = grammar({
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  $.expression,
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  ),
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+ field_target: ($) =>
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+ seq(
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+ field("object", $.primary_expression),
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+ ".",
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+ field("member", $.fn_identifier),
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+ ),
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+
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  assign: ($) =>
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  seq(
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- commaSep1($.var_identifier),
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+ commaSep1(choice($.var_identifier, $.field_target)),
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  "=",
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  commaSep1($.expression),
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  ),
tooling/tree-sitter-plum/src/grammar.json CHANGED
Binary file
tooling/tree-sitter-plum/src/node-types.json CHANGED
Binary file
tooling/tree-sitter-plum/src/parser.c CHANGED
Binary file
tooling/tree-sitter-plum/test/corpus/assign.txt CHANGED
@@ -262,3 +262,50 @@ main() =
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  (expression
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  (primary_expression
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  (integer)))))))))))))))))
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+
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+ ================================================================================
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+ field assignment target
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+ ================================================================================
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+
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+ main() =
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+ self.head = value
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+ self.head.value = x
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+ a, self.field = 1, 2
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+
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+ --------------------------------------------------------------------------------
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+
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+ (source
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+ (fn
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+ (fn_identifier)
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+ (body
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+ (assign
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+ (field_target
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+ (primary_expression
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+ (self))
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+ (fn_identifier))
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+ (expression
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+ (primary_expression
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+ (var_identifier))))
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+ (assign
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+ (field_target
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+ (primary_expression
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+ (attribute
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+ (primary_expression
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+ (self))
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+ (fn_identifier)))
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+ (fn_identifier))
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+ (expression
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+ (primary_expression
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+ (var_identifier))))
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+ (assign
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+ (var_identifier)
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+ (field_target
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+ (primary_expression
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+ (self))
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+ (fn_identifier))
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+ (expression
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+ (primary_expression
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+ (integer)))
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+ (expression
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+ (primary_expression
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+ (integer)))))))