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| author | P. J. McDermott <pj@pehjota.net> | 2016-02-22 13:36:29 (EST) |
|---|---|---|
| committer | P. J. McDermott <pj@pehjota.net> | 2016-02-22 13:36:29 (EST) |
| commit | d533dc560cf422043069feeb741b6f85579748b6 (patch) | |
| tree | 5491d01d3ad2f39f6acf0bd87bc637e364706f4b /eshtrans | |
| parent | e95515664a943d8968c492f242a7d4b0729ea4b5 (diff) | |
| download | eggshell-d533dc560cf422043069feeb741b6f85579748b6.zip eggshell-d533dc560cf422043069feeb741b6f85579748b6.tar.gz eggshell-d533dc560cf422043069feeb741b6f85579748b6.tar.bz2 | |
eshtrans/backend: Add support for static vars and functions
Diffstat (limited to 'eshtrans')
| -rw-r--r-- | eshtrans/backend/codegen.esh | 63 | ||||
| -rw-r--r-- | eshtrans/backend/main.esh | 1 |
2 files changed, 64 insertions, 0 deletions
diff --git a/eshtrans/backend/codegen.esh b/eshtrans/backend/codegen.esh index a9c3cef..e257990 100644 --- a/eshtrans/backend/codegen.esh +++ b/eshtrans/backend/codegen.esh @@ -19,6 +19,8 @@ # <http://www.gnu.org/licenses/>. sc= +tu_id= +static_fn_n= sgetc() { @@ -26,13 +28,30 @@ sgetc() sc="${sc%.}" } +add_static_fn() +{ + local fn="${1}" + + printf '__%s_static_fns="${__%s_static_fns} %s:__%s_fn%d"\n' \ + "${tu_id}" "${tu_id}" "${fn}" ${static_fn_n} + printf '__%s_fn%d' "${tu_id}" ${static_fn_n} + static_fn_n=$((${static_fn_n} + 1)) +} + codegen_sub() { local array="${1}" shift 1 local ionum= + local static= + local static_fname= + local fname= ionum=false + static=false + static_fname=false + fname='' + IFS="${RS}" for t in ${array}; do if ${ionum}; then @@ -43,7 +62,43 @@ codegen_sub() esac ionum=false fi + + # State machine for static variables and functions + case "${t%${US}*}" in + T_STATIC) + static=true + continue + ;; + esac + if ${static}; then + static=false + case "${t%${US}*}" in + T_FNAME) + static_fname=true + fname="${t}" + continue + ;; + *) + toktext T_STATIC + printf ' ' + ;; + esac + elif ${static_fname}; then + static_fname=false + case "${t%${US}*}" in + T_LPAREN) + add_static_fn "${fname#*${US}}" + ;; + *) + toktext T_STATIC + printf ' ' + toktext "${fname}" + ;; + esac + fi + toktext "${t}" + case "${t%${US}*}" in T_NEWLINE|T_LPAREN) # Indenting lines can mess up here-documents. @@ -119,3 +174,11 @@ sh_set_tu_id() return 0 } + +sh_start_tu() +{ + printf '__tu=%s\n' "${tu_id}" + printf '__%s_static_vars=\n' "${tu_id}" + printf '__%s_static_fns=\n' "${tu_id}" + static_fn_n=0 +} diff --git a/eshtrans/backend/main.esh b/eshtrans/backend/main.esh index 485e9be..8851053 100644 --- a/eshtrans/backend/main.esh +++ b/eshtrans/backend/main.esh @@ -24,6 +24,7 @@ sh_codegen() shift 1 sh_set_tu_id "${toks}" + sh_start_tu if printf '%s' "${toks}" | sh_parse_stack; then return 0 else |