Mike Gerwitz

Activist for User Freedom

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Diffstat (limited to 'src/current/compiler/validate/param.xsl')
-rw-r--r--src/current/compiler/validate/param.xsl103
1 files changed, 103 insertions, 0 deletions
diff --git a/src/current/compiler/validate/param.xsl b/src/current/compiler/validate/param.xsl
new file mode 100644
index 0000000..1d18d7a
--- /dev/null
+++ b/src/current/compiler/validate/param.xsl
@@ -0,0 +1,103 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+<!--
+ Parameter validations
+-->
+
+<xsl:stylesheet version="1.0"
+ xmlns="http://www.w3.org/1999/xhtml"
+ xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+ xmlns:lv="http://www.lovullo.com/rater"
+ xmlns:c="http://www.lovullo.com/calc"
+ xmlns:lvv="http://www.lovullo.com/rater/validate"
+ xmlns:preproc="http://www.lovullo.com/rater/preproc">
+
+
+<!--
+ Param type must be known
+
+ TODO: Doesn't the symbol table lookup process handle this?
+-->
+<xsl:template match="
+ lv:param[
+ not(
+ @type=root(.)/preproc:symtable/preproc:sym[
+ @type
+ ]/@name
+ )
+ ]"
+ mode="lvv:validate" priority="5">
+
+ <xsl:call-template name="lvv:error">
+ <xsl:with-param name="desc" select="'Unknown param type'" />
+ <xsl:with-param name="refnode" select="." />
+ <xsl:with-param name="content">
+ <xsl:text>'</xsl:text>
+ <xsl:value-of select="@type" />
+ <xsl:text>' is undefined for param </xsl:text>
+ <xsl:value-of select="@name" />
+ </xsl:with-param>
+ </xsl:call-template>
+</xsl:template>
+
+
+<!--
+ Default must be within the domain of the param
+
+ Note that this template priority is less than the template that checks to
+ ensure that the param type exists in the first place.
+-->
+<xsl:template match="lv:param[ @default ]"
+ mode="lvv:validate" priority="4">
+
+ <xsl:variable name="type" select="@type" />
+
+ <!-- default must be within its domain -->
+ <xsl:variable name="result">
+ <xsl:call-template name="lvv:domain-check">
+ <xsl:with-param name="value" select="@default" />
+ <xsl:with-param name="sym-domain" select="
+ root(.)/preproc:symtable/preproc:sym[
+ @name = $type
+ ]" />
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:if test="not( $result/lvv:ok )">
+ <xsl:variable name="fail" select="$result/lvv:fail/lvv:chk" />
+
+ <!-- if we didn't succeed, but we didn't fail, then we did something we
+ weren't supposed to -->
+ <xsl:if test="not( $fail )">
+ <xsl:message terminate="yes">
+ <xsl:text>internal error: in limbo processing param `</xsl:text>
+ <xsl:value-of select="@name" />
+ <xsl:text>' @default</xsl:text>
+ </xsl:message>
+ </xsl:if>
+
+ <xsl:call-template name="lvv:error">
+ <xsl:with-param name="desc" select="'param @default domain violation'" />
+ <xsl:with-param name="refnode" select="." />
+ <xsl:with-param name="content">
+ <xsl:text>param `</xsl:text>
+ <xsl:value-of select="@name" />
+ <xsl:text>' @default of `</xsl:text>
+ <xsl:value-of select="$fail/@value" />
+ <xsl:text>' is not within its domain of </xsl:text>
+ <xsl:value-of select="$fail/preproc:sym/@src" />
+ <xsl:text>/</xsl:text>
+ <xsl:value-of select="$fail/preproc:sym/@name" />
+ </xsl:with-param>
+ </xsl:call-template>
+ </xsl:if>
+</xsl:template>
+
+
+<!--
+ Fallback for no validation issues
+-->
+<xsl:template match="lv:param" mode="lvv:validate" priority="2">
+</xsl:template>
+
+</xsl:stylesheet>
+