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/**
* Implement the `-deps` and `-makedeps` switches, which output dependencies of modules for build tools.
*
* The grammar of the `-deps` output is:
* ---
* ImportDeclaration
* ::= BasicImportDeclaration [ " : " ImportBindList ] [ " -> "
* ModuleAliasIdentifier ] "\n"
*
* BasicImportDeclaration
* ::= ModuleFullyQualifiedName " (" FilePath ") : " Protection|"string"
* " [ " static" ] : " ModuleFullyQualifiedName " (" FilePath ")"
*
* FilePath
* - any string with '(', ')' and '\' escaped with the '\' character
* ---
*
* Make dependencies as generated by `-makedeps` look like this:
* ---
* source/app.d:
* source/importa.d \
* source/importb.d
* ---
*
* Copyright: Copyright (C) 1999-2025 by The D Language Foundation, All Rights Reserved
* License: $(LINK2 https://www.boost.org/LICENSE_1_0.txt, Boost License 1.0)
* Source: $(LINK2 https://github.com/dlang/dmd/blob/master/compiler/src/dmd/deps.d, makedeps.d)
* Documentation: https://dlang.org/phobos/dmd_deps.html
* Coverage: https://codecov.io/gh/dlang/dmd/src/master/compiler/src/dmd/deps.d
*/
module dmd.deps;
import core.stdc.stdio : printf;
import core.stdc.string : strcmp;
import dmd.common.outbuffer;
import dmd.dimport : Import;
import dmd.dmodule : Module;
import dmd.globals : Param, Output;
import dmd.hdrgen : visibilityToBuffer;
import dmd.id : Id;
import dmd.utils : escapePath;
/**
* Add an import expression to module dependencies
* Params:
* moduleDeps = output settings for `-deps`
* makeDeps = output settings for `-makedeps`
* fileNameZ = 0-termminated string containing the import expression's resolved filename
* importString = raw string passed to import exp
* imod = module import exp is in
*/
void addImportExpDep(ref Output moduleDeps, ref Output makeDeps, const(char)[] fileNameZ, const(char)[] importString, Module imod)
{
if (moduleDeps.buffer !is null)
{
OutBuffer* ob = moduleDeps.buffer;
if (!moduleDeps.name)
ob.writestring("depsFile ");
ob.writestring(imod.toPrettyChars());
ob.writestring(" (");
escapePath(ob, imod.srcfile.toChars());
ob.writestring(") : ");
if (moduleDeps.name)
ob.writestring("string : ");
ob.write(importString);
ob.writestring(" (");
escapePath(ob, fileNameZ.ptr);
ob.writestring(")");
ob.writenl();
}
if (makeDeps.doOutput)
{
makeDeps.files.push(fileNameZ.ptr);
}
}
/**
* Add an import statement to module dependencies
* Params:
* moduleDeps = output settings
* imp = import to add
* imod = module that the import is in
*/
void addImportDep(ref Output moduleDeps, Import imp, Module imod)
{
// object self-imports itself, so skip that
// https://issues.dlang.org/show_bug.cgi?id=7547
// don't list pseudo modules __entrypoint.d, __main.d
// https://issues.dlang.org/show_bug.cgi?id=11117
// https://issues.dlang.org/show_bug.cgi?id=11164
if (moduleDeps.buffer is null || (imp.id == Id.object && imod.ident == Id.object) ||
strcmp(imod.ident.toChars(), "__main") == 0)
return;
OutBuffer* ob = moduleDeps.buffer;
if (!moduleDeps.name)
ob.writestring("depsImport ");
ob.writestring(imod.toPrettyChars());
ob.writestring(" (");
escapePath(ob, imod.srcfile.toChars());
ob.writestring(") : ");
// use visibility instead of sc.visibility because it couldn't be
// resolved yet, see the comment above
visibilityToBuffer(*ob, imp.visibility);
ob.writeByte(' ');
if (imp.isstatic)
{
ob.writestring("static ");
}
ob.writestring(": ");
foreach (pid; imp.packages)
{
ob.printf("%s.", pid.toChars());
}
ob.writestring(imp.id.toString());
ob.writestring(" (");
if (imp.mod)
escapePath(ob, imp.mod.srcfile.toChars());
else
ob.writestring("???");
ob.writeByte(')');
foreach (i, name; imp.names)
{
if (i == 0)
ob.writeByte(':');
else
ob.writeByte(',');
auto _alias = imp.aliases[i];
if (!_alias)
{
ob.printf("%s", name.toChars());
_alias = name;
}
else
ob.printf("%s=%s", _alias.toChars(), name.toChars());
}
if (imp.aliasId)
ob.printf(" -> %s", imp.aliasId.toChars());
ob.writenl();
}
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