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| author | Roy Frostig <[email protected]> | 2010-06-25 00:47:23 -0700 |
|---|---|---|
| committer | Roy Frostig <[email protected]> | 2010-06-25 00:47:23 -0700 |
| commit | 241305caab232b04666704dc6853c41312cd283a (patch) | |
| tree | 9a8cd9ef0573d15477927afb02620c723745ddcf /src/boot/fe/ast.ml | |
| parent | Rearrange pexp-custom stuff a bit. (diff) | |
| download | rust-241305caab232b04666704dc6853c41312cd283a.tar.xz rust-241305caab232b04666704dc6853c41312cd283a.zip | |
Resolve and typecheck patterns in pattern alt redux. This time featuring way more correctness.
Diffstat (limited to 'src/boot/fe/ast.ml')
| -rw-r--r-- | src/boot/fe/ast.ml | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/boot/fe/ast.ml b/src/boot/fe/ast.ml index 09037510..770b57bf 100644 --- a/src/boot/fe/ast.ml +++ b/src/boot/fe/ast.ml @@ -299,9 +299,14 @@ and domain = DOMAIN_local | DOMAIN_thread +(* + * PAT_tag uses lval for the tag constructor so that we can reuse our lval + * resolving machinery. The lval is restricted during parsing to have only + * named components. + *) and pat = PAT_lit of lit - | PAT_tag of ((name identified) * (pat array)) + | PAT_tag of (lval * (pat array)) | PAT_slot of ((slot identified) * ident) | PAT_wild @@ -331,6 +336,7 @@ and lval_component = | COMP_atom of atom +(* identifying the name_base here is sufficient to identify the full lval *) and lval = LVAL_base of name_base identified | LVAL_ext of (lval * lval_component) |