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module trial.stackresult;
import std.conv;
import std.regex;
import std.exception;
import std.stdio;
import std.string;
import std.algorithm;
import core.demangle;
version(Have_fluent_asserts) { } else {
auto toTestException(Throwable t)
{
return t;
}
}
version(Have_fluent_asserts) {
import fluentasserts.core.base;
import fluentasserts.core.results;
class TestExceptionWrapper : TestException {
private {
TestException exception;
IResult[] results;
}
this(TestException exception, IResult[] results, string fileName, size_t line, Throwable next = null) {
this.exception = exception;
this.results = results;
super(results, fileName, line, next);
this.msg = exception.msg ~ "\n" ~ this.msg;
}
override void print(ResultPrinter printer) {
exception.print(printer);
results.each!(a => a.print(printer));
}
override string toString() {
return exception.toString ~ results.map!(a => a.toString).join("\n").to!string;
}
}
TestException toTestException(Throwable t)
{
auto exception = cast(TestException) t;
if (exception is null)
{
IResult[] results = [cast(IResult) new MessageResult(t.classinfo.name ~ ": " ~ t.msg)];
if (t.file.indexOf("../") == -1)
{
results ~= cast(IResult) new SourceResult(t.file, t.line);
}
if (t !is null && t.info !is null)
{
results ~= cast(IResult) new StackResult(t.info);
}
exception = new TestException(results, t.file, t.line, t);
} else {
exception = new TestExceptionWrapper(exception, [ cast(IResult) new StackResult(t.info) ], t.file, t.line, t);
}
return exception;
}
struct ExternalValidator
{
string[] externalModules;
bool isExternal(const string name) @safe
{
auto reversed = name.dup;
reverse(reversed);
string substring = name;
int sum = 0;
int index = 0;
foreach (ch; reversed)
{
if (ch == ')')
{
sum++;
}
if (ch == '(')
{
sum--;
}
if (sum == 0)
{
break;
}
index++;
}
auto tmpSubstring = reversed[index .. $];
reverse(tmpSubstring);
substring = tmpSubstring.to!string;
auto wordEnd = substring.lastIndexOf(' ') + 1;
auto chainEnd = substring.lastIndexOf(").") + 1;
if (chainEnd > wordEnd)
{
return isExternal(name[0 .. chainEnd]);
}
auto functionName = substring[wordEnd .. $];
return !externalModules.filter!(a => functionName.indexOf(a) == 0).empty;
}
}
class StackResult : IResult
{
static
{
string[] externalModules;
}
Frame[] frames;
this(Throwable.TraceInfo t)
{
foreach (line; t)
{
auto frame = line.to!string.toFrame;
frame.name = demangle(frame.name).to!string;
frames ~= frame;
}
}
private
{
auto getFrames()
{
return frames.until!(a => a.name.indexOf("generated") != -1)
.until!(a => a.name.indexOf("D5trial") != -1);
}
}
override
{
string toString() @safe
{
string result = "Stack trace:\n-------------------\n...\n";
foreach (frame; getFrames)
{
result ~= frame.toString ~ "\n";
}
return result ~ "...";
}
void print(ResultPrinter printer)
{
int colorIndex = 0;
printer.primary("Stack trace:\n-------------------\n...\n");
auto validator = ExternalValidator(externalModules);
foreach (frame; getFrames)
{
if (validator.isExternal(frame.name))
{
printer.primary(frame.toString);
}
else
{
frame.print(printer);
}
printer.primary("\n");
}
printer.primary("...");
}
}
}
} else {
class StackResult
{
static
{
string[] externalModules;
}
Frame[] frames;
this(Throwable.TraceInfo t)
{
foreach (line; t)
{
auto frame = line.to!string.toFrame;
frame.name = demangle(frame.name).to!string;
frames ~= frame;
}
}
private
{
auto getFrames()
{
return frames.until!(a => a.name.indexOf("generated") != -1)
.until!(a => a.name.indexOf("D5trial") != -1);
}
}
override
{
string toString() @safe
{
string result = "Stack trace:\n-------------------\n...\n";
foreach (frame; getFrames)
{
result ~= frame.toString ~ "\n";
}
return result ~ "...";
}
}
}
}
struct Frame
{
int index = -1;
string moduleName;
string address;
string name;
string offset;
string file;
int line = -1;
bool invalid = true;
string raw;
string toString() const @safe {
if(raw != "") {
return raw;
}
string result;
if(index >= 0) {
result ~= leftJustifier(index.to!string, 4).to!string;
}
result ~= address ~ " ";
result ~= name == "" ? "????" : name;
if(moduleName != "") {
result ~= " at " ~ moduleName;
}
if(offset != "") {
result ~= " + " ~ offset;
}
if(file != "") {
result ~= " (" ~ file;
if(line > 0) {
result ~= ":" ~ line.to!string;
}
result ~= ")";
}
return result;
}
version(Have_fluent_asserts) {
void print(ResultPrinter printer) @safe
{
if(raw != "") {
printer.primary(raw);
return;
}
if(index >= 0) {
printer.info(leftJustifier(index.to!string, 4).to!string);
}
printer.primary(address ~ " ");
printer.info(name == "" ? "????" : name);
if(moduleName != "") {
printer.primary(" at ");
printer.info(moduleName);
}
if(offset != "") {
printer.primary(" + ");
printer.info(offset);
}
if(file != "") {
printer.primary(" (");
printer.info(file);
if(line > 0) {
printer.primary(":");
printer.info(line.to!string);
}
printer.primary(")");
}
}
}
}
immutable static
{
string index = `(?P<index>[0-9]+)`;
string moduleName = `(?P<module>\S+)`;
string address = `(?P<address>0x[0-9a-fA-F]+)`;
string name = `(?P<name>.+)`;
string offset = `(?P<offset>(0x[0-9A-Za-z]+)|([0-9]+))`;
string file = `(?P<file>.+)`;
string linePattern = `(?P<line>[0-9]+)`;
}
Frame toDarwinFrame(string line)
{
Frame frame;
auto darwinPattern = index ~ `(\s+)` ~ moduleName ~ `(\s+)` ~ address ~ `(\s+)`
~ name ~ `\s\+\s` ~ offset;
auto matched = matchFirst(line, darwinPattern);
if(matched.length < 5) {
return frame;
}
frame.invalid = false;
frame.index = matched["index"].to!int;
frame.moduleName = matched["module"];
frame.address = matched["address"];
frame.name = matched["name"];
frame.offset = matched["offset"];
return frame;
}
Frame toWindows1Frame(string line)
{
Frame frame;
auto matched = matchFirst(line,
address ~ `(\s+)in(\s+)` ~ name ~ `(\s+)at(\s+)` ~ file ~ `\(` ~ linePattern ~ `\)`);
if(matched.length < 4) {
return frame;
}
frame.address = matched["address"];
frame.name = matched["name"];
frame.file = matched["file"];
frame.line = matched["line"].to!int;
frame.invalid = frame.address == "" || frame.name == "" || frame.file == "";
return frame;
}
Frame toWindows2Frame(string line)
{
Frame frame;
auto matched = matchFirst(line, address ~ `(\s+)in(\s+)` ~ name);
if(matched.length < 2) {
return frame;
}
frame.address = matched["address"];
frame.name = matched["name"];
frame.invalid = frame.address == "" || frame.name == "";
return frame;
}
Frame toGLibCFrame(string line)
{
Frame frame;
auto matched = matchFirst(line, moduleName ~ `\(` ~ name ~ `\)\s+\[` ~ address ~ `\]`);
if(matched.length < 3) {
return frame;
}
frame.address = matched["address"];
frame.name = matched["name"];
frame.moduleName = matched["module"];
auto plusSign = frame.name.indexOf("+");
if (plusSign != -1)
{
frame.offset = frame.name[plusSign + 1 .. $];
frame.name = frame.name[0 .. plusSign];
}
frame.invalid = frame.address == "" || frame.name == "" || frame.moduleName == "" ||
frame.name.indexOf("(") >= 0;
return frame;
}
Frame toNetBsdFrame(string line)
{
Frame frame;
auto matched = matchFirst(line, address ~ `\s+<` ~ name ~ `\+` ~ offset ~ `>\s+at\s+` ~ moduleName);
if(matched.length < 4) {
return frame;
}
frame.address = matched["address"];
frame.name = matched["name"];
frame.moduleName = matched["module"];
frame.offset = matched["offset"];
frame.invalid = frame.address == "" || frame.name == "" || frame.moduleName == "" || frame.offset == "";
return frame;
}
Frame toLinuxFrame(string line) {
Frame frame;
auto matched = matchFirst(line, file ~ `:` ~ linePattern ~ `\s+` ~ name ~ `\s+\[` ~ address ~ `\]`);
if(matched.length < 4) {
return frame;
}
frame.file = matched["file"];
frame.name = matched["name"];
frame.address = matched["address"];
frame.line = matched["line"].to!int;
frame.invalid = frame.address == "" || frame.name == "" || frame.file == "" || frame.line == 0;
return frame;
}
Frame toMissingInfoLinuxFrame(string line) {
Frame frame;
auto matched = matchFirst(line, `\?\?:\?\s+` ~ name ~ `\s+\[` ~ address ~ `\]`);
if(matched.length < 2) {
return frame;
}
frame.name = matched["name"];
frame.address = matched["address"];
frame.invalid = frame.address == "" || frame.name == "";
return frame;
}
Frame toFrame(string line)
{
Frame frame;
frame.raw = line;
frame.invalid = false;
auto frames = [
line.toDarwinFrame,
line.toWindows1Frame,
line.toWindows2Frame,
line.toGLibCFrame,
line.toNetBsdFrame,
line.toLinuxFrame,
line.toMissingInfoLinuxFrame,
frame
];
return frames.filter!(a => !a.invalid).front;
}