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Diffstat (limited to 'src/eval/eval_tree_cd.cc')
| -rw-r--r-- | src/eval/eval_tree_cd.cc | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/eval/eval_tree_cd.cc b/src/eval/eval_tree_cd.cc new file mode 100644 index 0000000..7d7c1af --- /dev/null +++ b/src/eval/eval_tree_cd.cc @@ -0,0 +1,56 @@ +#include "eval.h" + +#include <string> + +#include "error.h" +#include "lang_analysis/lexer_class.h" +#include "lang_analysis/ast.h" +#include "lang_analysis/token.h" +#include "lang_analysis/enum_type.h" +#include "lang_analysis/symbol_property.h" +#include "util/io.h" + +using namespace std; + +namespace ov4 +{ + +int eval_tree_cd(size_t i, const T_lexer &lexer_instance, bool inside_subshell) +{ + // TODO: async + + int ret = -1; + + println("eval_tree_cd: processing {} subshell {}", i, (lexer_instance.ast[i].subshell ? "TRUE" : "FALSE")); + + // if it's a subshell, and current AST's subshell status is not subshell + // (subshell should be forkerd already, then set inside_subshell = true) + // fork itself + if (lexer_instance.ast[i].subshell && !inside_subshell) + { + eval_exe("", false, &lexer_instance, i); + return 0; + } + + if (lexer_instance.ast[i].token_type == TEXT) + { + ret = eval_exe(lexer_instance.ast[i].command_text, false); + return ret; + } + + if (lexer_instance.ast[i].left != string::npos) + { + ret = eval_tree_cd(lexer_instance.ast[i].left, lexer_instance, false); + } + + if (lexer_instance.ast[i].right != string::npos) + { + if (lexer_instance.ast[i].token_type == LOGIC_AND && ret != 0) return ret; + if (lexer_instance.ast[i].token_type == LOGIC_OR && ret == 0) return ret; + + ret = eval_tree_cd(lexer_instance.ast[i].right, lexer_instance, false); + } + return ret; +} + +}
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