mirror/stedolan-jq
1
0
Fork 0
mirror of https://github.com/stedolan/jq.git synced 2024-05-11 05:55:39 +00:00
Code Issues Releases Activity

Define bytecoded builtins more concisely.

Browse Source
This commit is contained in:
Stephen Dolan
2012-11-26 18:53:47 +00:00
parent 4c65847568
commit 334a79b704
1 changed files with 17 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

50
builtin.c
View File

@@ -251,27 +251,6 @@ static void f_type(jv input[], jv output[]) {
jv_free(input[0]);
}
static block j_empty() {
return gen_function("empty", gen_op_simple(BACKTRACK));
}
static block j_false() {
return gen_function("false", gen_op_const(LOADK, jv_false()));
}
static block j_true() {
return gen_function("true", gen_op_const(LOADK, jv_true()));
}
static block j_null() {
return gen_function("null", gen_op_const(LOADK, jv_null()));
}
static block j_not() {
return gen_function("not", gen_condbranch(gen_op_const(LOADK, jv_false()),
gen_op_const(LOADK, jv_true())));
}
static struct cfunction function_list[] = {
{f_plus, "_plus", CALL_BUILTIN_3_1},
{f_minus, "_minus", CALL_BUILTIN_3_1},
@@ -294,13 +273,22 @@ static struct cfunction function_list[] = {
static struct symbol_table cbuiltins = {function_list, sizeof(function_list)/sizeof(function_list[0])};
typedef block (*bytecoded_builtin)();
static bytecoded_builtin bytecoded_builtins[] = {
j_empty,
j_false,
j_true,
j_null,
j_not,
};
struct bytecoded_builtin { const char* name; block code; };
static block bind_bytecoded_builtins(block b) {
struct bytecoded_builtin builtin_defs[] = {
{"empty", gen_op_simple(BACKTRACK)},
{"false", gen_op_const(LOADK, jv_false())},
{"true", gen_op_const(LOADK, jv_true())},
{"null", gen_op_const(LOADK, jv_null())},
{"not", gen_condbranch(gen_op_const(LOADK, jv_false()),
gen_op_const(LOADK, jv_true()))}
};
block builtins = gen_noop();
for (unsigned i=0; i<sizeof(builtin_defs)/sizeof(builtin_defs[0]); i++) {
builtins = BLOCK(builtins, gen_function(builtin_defs[i].name, builtin_defs[i].code));
}
return block_bind(builtins, b, OP_IS_CALL_PSEUDO);
}
static const char* jq_builtins[] = {
"def map(f): [.[] | f];",
@@ -318,10 +306,6 @@ block builtins_bind(block b) {
b = block_bind(funcs, b, OP_IS_CALL_PSEUDO);
locfile_free(&src);
}
block builtins = gen_noop();
for (unsigned i=0; i<sizeof(bytecoded_builtins)/sizeof(bytecoded_builtins[0]); i++) {
block_append(&builtins, bytecoded_builtins[i]());
}
b = block_bind(builtins, b, OP_IS_CALL_PSEUDO);
b = bind_bytecoded_builtins(b);
return gen_cbinding(&cbuiltins, b);
}