Mirror: The magical sticky regex-based parser generator 🧙
Simplify opts construction
+13
-14
+13
-14
src/codegen.js
+13
-14
src/codegen.js
···
9
9
return body.trim();
10
10
}
11
11
12
-
const newOpts = (prev, next) => ({
13
-
index: next.index != null ? next.index : prev.index,
14
-
length: next.length != null ? next.length : prev.length,
15
-
onAbort: next.onAbort != null ? next.onAbort : prev.onAbort,
16
-
abort: next.abort != null ? next.abort : prev.abort,
17
-
capture: next.capture != null ? next.capture : prev.capture,
18
-
});
12
+
const makeOpts = (prev, next) => {
13
+
const output = {};
14
+
for (const key in prev) output[key] = prev[key];
15
+
for (const key in next) output[key] = next[key];
16
+
return output;
17
+
};
19
18
20
19
const assignIndex = (depth) =>
21
20
depth ? js`var index_${depth} = ${_state}.index;` : '';
···
74
73
${astSequence(
75
74
ast.sequence,
76
75
depth + 1,
77
-
newOpts(opts, {
76
+
makeOpts(opts, {
78
77
length: depth,
79
78
capture,
80
79
})
···
85
84
return astSequence(
86
85
ast.sequence,
87
86
depth + 1,
88
-
newOpts(opts, {
87
+
makeOpts(opts, {
89
88
capture,
90
89
})
91
90
);
···
103
102
${astChild(
104
103
ast,
105
104
depth,
106
-
newOpts(opts, {
105
+
makeOpts(opts, {
107
106
onAbort: js`
108
107
if (${count}) {
109
108
${restoreIndex(depth)}
···
126
125
${astChild(
127
126
ast,
128
127
depth,
129
-
newOpts(opts, {
128
+
makeOpts(opts, {
130
129
length: 0,
131
130
index: depth,
132
131
abort: js`break ${label};`,
···
142
141
${astChild(
143
142
ast,
144
143
depth,
145
-
newOpts(opts, {
144
+
makeOpts(opts, {
146
145
index: depth,
147
146
abort: '',
148
147
onAbort: '',
···
155
154
const label = `invert_${depth}`;
156
155
157
156
if (ast.capture === '!') {
158
-
opts = newOpts(opts, {
157
+
opts = makeOpts(opts, {
159
158
index: depth,
160
159
abort: js`break ${label};`,
161
160
});
···
197
196
198
197
let childOpts = opts;
199
198
if (ast.alternation) {
200
-
childOpts = newOpts(opts, {
199
+
childOpts = makeOpts(opts, {
201
200
index: depth,
202
201
abort: js`break ${block};`,
203
202
onAbort: '',