Artifact
a716255dbace7b502afe4c20bd8474e7081bf0c3:
###############################################################################
#
# csharp.eagle --
#
# Extensible Adaptable Generalized Logic Engine (Eagle)
# Eagle CSharp Package File
#
# Copyright (c) 2007-2012 by Joe Mistachkin. All rights reserved.
#
# See the file "license.terms" for information on usage and redistribution of
# this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# RCS: @(#) $Id: $
#
###############################################################################
#
# NOTE: Use our own namespace here because even though we do not directly
# support namespaces ourselves, we do not want to pollute the global
# namespace if this script actually ends up being evaluated in Tcl.
#
namespace eval ::Eagle {
#
# NOTE: This procedure is used to dynamically compile some C# code from
# within a script. While this procedure was originally designed
# to be used by the test suite, it can be quite useful in non-test
# scripts as well.
#
proc compileCSharp {
string memory symbols strict resultsVarName errorsVarName args } {
#
# NOTE: The [object] command is required by this procedure. If it
# is not available, bail out now.
#
if {[llength [info commands object]] == 0} then {
#
# NOTE: We cannot even attempt to compile anything, fail.
#
set code Error
#
# NOTE: Prepare to transfer error messages to the caller.
#
if {[string length $errorsVarName] > 0} then {
upvar 1 $errorsVarName local_errors
}
#
# NOTE: Append to the list of errors.
#
lappend local_errors "cannot compile, missing \"object\" command"
#
# NOTE: Return the overall result to the caller.
#
return $code
}
#
# NOTE: Create the C# code provider object (i.e. the compiler).
#
set provider [object create -alias Microsoft.CSharp.CSharpCodeProvider]
#
# NOTE: Create the object that provides various parameters to the C#
# code provider (i.e. the compiler options).
#
set parameters [object create -alias \
System.CodeDom.Compiler.CompilerParameters]
#
# NOTE: Do we not want to persist the generated assembly to disk?
#
if {$memory} then {
$parameters GenerateInMemory true
}
#
# NOTE: Do we want symbols to be generated for the generated assembly?
#
if {$symbols} then {
$parameters IncludeDebugInformation true
}
#
# NOTE: Make sure that the "standard" preprocessor defines match those
# for the platform (i.e. the ones used to compile the Eagle core
# library assembly).
#
set platformOptions [expr { \
[info exists ::eagle_platform(compileOptions)] ? \
$::eagle_platform(compileOptions) : [list]}]
#
# NOTE: Permit extra C# compiler options to be passed via the global
# array element "csharpOptions", if it exists.
#
set csharpOptions [expr { \
[info exists ::eagle_platform(csharpOptions)] ? \
$::eagle_platform(csharpOptions) : [list]}]
if {[llength $platformOptions] > 0 || \
[llength $csharpOptions] > 0} then {
#
# NOTE: Grab the existing compiler options, if any.
#
set compilerOptions [$parameters CompilerOptions]
if {"DEBUG" in $platformOptions} then {
if {[string length $compilerOptions] > 0} then {
append compilerOptions " "
}
append compilerOptions /define:DEBUG
}
if {"TRACE" in $platformOptions} then {
if {[string length $compilerOptions] > 0} then {
append compilerOptions " "
}
append compilerOptions /define:TRACE
}
#
# NOTE: Append the configured extra C# compiler options configured
# via the global array element "csharpOptions", if any.
#
foreach csharpOption $csharpOptions {
if {[string length $compilerOptions] > 0} then {
append compilerOptions " "
}
append compilerOptions $csharpOption
}
#
# NOTE: Reset the compiler options to the pre-existing ones plus the
# extra defines we may have added (above).
#
$parameters CompilerOptions $compilerOptions
}
#
# NOTE: Process any extra compiler settings the caller may have
# provided.
#
foreach {name value} $args {
$parameters -nocase $name $value
}
#
# NOTE: Prepare to transfer the object reference to the caller. We
# must use upvar here because otherwise the object is lost when
# the procedure call frame is cleaned up.
#
if {[string length $resultsVarName] > 0} then {
upvar 1 $resultsVarName results
}
#
# NOTE: Attempt to compile the specified string as C# and capture the
# results into the variable provided by the caller.
#
set results [$provider -alias CompileAssemblyFromSource $parameters \
$string]
#
# NOTE: We no longer need the C# code provider object (i.e. the
# compiler); therefore, dispose it now.
#
unset provider; # dispose
#
# NOTE: Fetch the collection of compiler errors (which may be empty).
#
set errors [$results -alias Errors]
#
# NOTE: It is assumed that no assembly was generated if there were
# any compiler errors. Ignore all compiler warnings unless
# we are in strict mode.
#
if {[$errors HasErrors] || ($strict && [$errors HasWarnings])} then {
#
# NOTE: Compilation of the assembly failed.
#
set code Error
#
# NOTE: Prepare to transfer error messages to the caller.
#
if {[string length $errorsVarName] > 0} then {
upvar 1 $errorsVarName local_errors
}
#
# NOTE: How many compile errors?
#
set count [$errors Count]
#
# NOTE: Grab each error object and append the string itself to
# the overall list of errors.
#
for {set index 0} {$index < $count} {incr index} {
#
# NOTE: Get the compiler error object at this index.
#
set error [$errors -alias Item $index]
#
# NOTE: Convert it to a string and append it to the list of
# errors.
#
lappend local_errors [$error ToString]
#
# NOTE: Since the error itself is actually an object, we must
# dispose it.
#
unset error; # dispose
}
} else {
#
# NOTE: Compilation of the assembly succeeded.
#
set code Ok
}
#
# NOTE: We no longer need the collection of compiler errors;
# therefore, dispose it now.
#
unset errors; # dispose
#
# NOTE: Return the overall result to the caller.
#
return $code
}
#
# NOTE: Provide the Eagle "C#" package to the interpreter.
#
package provide Eagle.CSharp \
[expr {[isEagle] ? [info engine PatchLevel] : "1.0"}]
}