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| -rw-r--r-- | tree.txt | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tree.txt b/tree.txt new file mode 100644 index 0000000..75433b2 --- /dev/null +++ b/tree.txt @@ -0,0 +1,29 @@ +The Expr +======== + [ block ] ⇐ a block is a list of exprs + │ ┌┘ + │ │ + [ expr ] ── [ lit ] ⇐ a literal value; "base case" for the tree + │ │ ├── type + ┌──┘ └──┐ └─ value +[ def ] [ call ] + │ │ + ├─ [target] ← id ├─ [target] ← id ⇐ an id is a pointer to another part of the tree + └── [value] ← expr └──── [arg] ← expr + +Example Expr Tree +================= +[ block ] + │ + ├─ [ def ] + │ │ + │ ├─ [target] → hello + │ └── [value] → [ lit ] + │ ├── type → str + │ └─ value → Hello, World + ├─ [ call ] + │ │ + │ ├─ [target] → print + │ └──── [arg] → hello + ... + |