Files
android-dev-ext/src/globals.js
2017-06-20 13:40:57 +01:00

88 lines
3.1 KiB
JavaScript

'use strict'
const path = require('path');
// some commonly used Java types in debugger-compatible format
const JTYPES = {
byte: {typename:'byte',signature:'B'},
short: {typename:'short',signature:'S'},
int: {typename:'int',signature:'I'},
long: {typename:'long',signature:'J'},
float: {typename:'float',signature:'F'},
double: {typename:'double',signature:'D'},
char: {typename:'char',signature:'C'},
boolean: {typename:'boolean',signature:'Z'},
null: {typename:'null',signature:'Lnull;'}, // null has no type really, but we need something for literals
String: {typename:'String',signature:'Ljava/lang/String;'},
Object: {typename:'Object',signature:'Ljava/lang/Object;'},
isArray(t) { return t.signature[0]==='[' },
isObject(t) { return t.signature[0]==='L' },
isReference(t) { return /^[L[]/.test(t.signature) },
isPrimitive(t) { return !JTYPES.isReference(t.signature) },
isInteger(t) { return /^[BCIJS]$/.test(t.signature) },
isNumber(t) { return /^[BCIJSFD]$/.test(t.signature) },
isString(t) { return t.signature === this.String.signature },
isChar(t) { return t.signature === this.char.signature },
isBoolean(t) { return t.signature === this.boolean.signature },
fromPrimSig(sig) { return JTYPES['byte,short,int,long,float,double,char,boolean'.split(',')['BSIJFDCZ'.indexOf(sig)]] },
}
function signatureToFullyQualifiedType(sig) {
var arr = sig.match(/^\[+/) || '';
if (arr) {
arr = '[]'.repeat(arr[0].length);
sig = sig.slice(0, arr.length/2);
}
var m = sig.match(/^((L([^<;]+).)|T([^;]+).|.)/);
if (!m) return '';
if (m[3]) {
return m[3].replace(/[/$]/g,'.') + arr;
} else if (m[4]) {
return m[4].replace(/[/$]/g, '.') + arr;
}
return JTYPES.fromPrimSig(sig[0]) + arr;
}
// the special name given to exception message fields
const exmsg_var_name = ':msg';
function createJavaString(dbgr, s, opts) {
const raw = (opts && opts.israw) ? s : s.slice(1,-1).replace(/\\u[0-9a-fA-F]{4}|\\./,decode_char);
// return a deferred, which resolves to a local variable named 'literal'
return dbgr.createstring(raw);
}
function decode_char(c) {
switch(true) {
case /^\\[^u]$/.test(c):
// backslash escape
var x = {b:'\b',f:'\f',r:'\r',n:'\n',t:'\t',v:'\v','0':String.fromCharCode(0)}[c[1]];
return x || c[1];
case /^\\u[0-9a-fA-F]{4}$/.test(c):
// unicode escape
return String.fromCharCode(parseInt(c.slice(2),16));
case c.length===1 :
return c;
}
throw new Error('Invalid character value');
}
function ensure_path_end_slash(p) {
return p + (/[\\/]$/.test(p) ? '' : path.sep);
}
function is_subpath_of(fpn, subpath) {
if (!subpath || !fpn) return false;
subpath = ensure_path_end_slash(''+subpath);
return fpn.slice(0,subpath.length) === subpath;
}
function variableRefToThreadId(variablesReference) {
return (variablesReference / 1e9)|0;
}
Object.assign(exports, {
JTYPES, exmsg_var_name, ensure_path_end_slash, is_subpath_of, decode_char, variableRefToThreadId, createJavaString, signatureToFullyQualifiedType
});